v0.7.6: geen wolfsdak bij een overkapping (veranda, inpandig of uitpandig: het dak van een unit steekt buiten zijn vloer, HouseModel.hasCover): de keuze verdwijnt in configurator en light, een bestaand wolfsdak wordt een zadeldak met dezelfde goot en nok; afdekker op een stenen trasraam onder rabat, felsplaten of stuc (WallModel.TRAS_CAP): zetwerk achter de bekleding, 5° aflopend, neus 25 mm over de steen, onderbroken bij openingen, bij een buitenhoek door tot voorbij de buursteen, zwart/antraciet/wit (WallModel.TRIM_COLORS), in 3D, PDF-aanzichten, materialen, rapport en kosten; ventilatierooster van 40 mm op de gevel direct onder de onderplaat van alle boeidelen (RoofModel.VENT, niet boven een veranda of tegen een hogere gevel), sleuven in de textuur, aan/uit en kleur bij Dak › Boeideel, in 3D, PDF, rapport en kosten; light-versie: boeidelen of daktrim met kleur boeidelen (Dak) en één zetwerk-kleur voor afdekker en rooster (Gevel); 3D zijwaarts schuiven ook met de middelste muisknop, Shift/Ctrl/⌘ + slepen en de pijltjestoetsen met de muis boven de weergave (configurator en light, hints en sneltoetsenoverzicht bijgewerkt)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

README.md

@@ -18,17 +18,20 @@ build-stap. Direct openen via `file://` werkt niet (texturen/lucht).
 ## Structuur
 
 ```
-index.html          app-shell: ribbon, splashscreen
+index.html          app-shell: bovenbalk (menu, documenten, opslaan), sneltoetsen, splashscreen
 css/app.css         alle stijl
-js/vendor/          three.js r128, eigen OrbitControls, jsPDF
-js/core/            gedeelde helpers: geometrie, bouwfasen, ribbon, UI-kit, PDF-bladen,
+js/vendor/          three.js r128, eigen OrbitControls, jsPDF, qrcode-generator 1.4.4 (MIT, Kazuhiko Arase; QR in de light-PDF),
+                    model-viewer 4.3.1 (Apache-2.0, Google; UMD-bundel met eigen three.js, AR in de light-versie)
+js/core/            gedeelde helpers: geometrie, weergavelagen (lagenmenu), menubalk, eigenschappenpaneel
+                    (inspector.js), UI-kit (werkbalk, weergave, popovers), PDF-bladen,
                     DXF-schrijver (dxf-writer.js), IFC-schrijver (ifc-writer.js), OBJ-schrijver
-                    (obj-writer.js), ZIP (zip-writer.js), labels, camerageheugen, weergavefilter,
+                    (obj-writer.js), GLB-schrijver (glb-writer.js), ZIP (zip-writer.js), labels, camerageheugen,
                     skybox, licentie, logo
 js/wall/            WallModel (logica) + wand-PDF + wand-editor
 js/floor/           FloorModel (logica) + vloer-PDF + vloer-editor
 js/roof/            RoofModel: dak (plat/lessenaar/zadel) + dakrand (boeidelen/daktrim)
-                    PostModel: palen onder een overkapping/veranda (dak per unit te verlengen)
+                    PostModel: palen onder een overkapping/veranda (dak per unit te verlengen), of een dichte
+                    zijwand op een vrije hoek
 js/house/chimney-model.js  ChimneyModel: schoorsteen tegen een buitenwand (hol, sparing in de wand zoals een raam,
                     ook over een naad, zonder hout erin; sparing in het dak met raveelwerk (stijlen, balken, kreupele
                     balken), de beplating eindigt op het kader; onderbreekt de dakrand; een nokbalk stopt ervoor;
@@ -43,6 +46,9 @@ js/unit/            UnitModel: 1 vloer + 4 wanden, naden, wandstukken
 js/house/           HouseModel (woning) + woning-PDF + CAD-export (house-dxf.js) + BIM-export (house-ifc.js) + woning-editor
 js/cost/            CostModel (kostenberekening), posten + noodwaarden, CostCsv (CSV's), venster Kosten & tijden
 js/app.js           menubalk, versienummer, actieve editor
+light.html          light-versie (modelpagina's), los te openen: light.html?model=amstel
+js/light/           LightModel (keuzes op een model toepassen, indelingscontrole, kerncijfers), LightPdf (klant-PDF) + light-UI
+css/light.css       stijl light-versie, alles onder .tectum-light
 json/defaults/      referentie-JSON's (niet runtime ingeladen)
 kosten/             intern.csv (eigen waarden) + leveranciers.csv (live prijzen), bij het starten ingeladen
 assets/             logo, texturen, skybox
@@ -57,9 +63,11 @@ assets/             logo, texturen, skybox
 - **Assen/zijden.** Bovenaanzicht boven = noord: voor = noord, achter = zuid,
   links = west, rechts = oost (interne sleutels blijven voor/achter/…).
 - **Hoogtes** gelden vanaf bovenkant vloer (loopvlak).
-- **Bouwfasen** (`BuildStages`): regelwerk → elektra (buizen, dozen, meterkast) → beplating → vochtdoek →
-  latwerk → gevel & dak → afgewerkt, de volgorde in de hal. De 3D toont de
-  gekozen fase; lagen die daarin aan beide zijden zijn ingesloten worden niet
+- **Weergavelagen** (`ViewLayers`): regelwerk, elektra, beplating, vochtdoek,
+  latwerk, gevelbekleding, kozijnen, dakbedekking, afwerking, verlichting,
+  inrichting, ruimtes, dak en maten, elk los aan/uit; de snelkeuze Fase zet
+  alles tot en met een bouwfase aan (de volgorde in de hal). Lagen die aan
+  beide zijden zijn ingesloten worden niet
   gebouwd (stijlen tussen spaanplaat en doek, latten en doek achter de rabat,
   sporen tussen plafond en dakbedekking). Specificaties en totalen rekenen
   altijd met alle lagen.
@@ -82,7 +90,11 @@ assets/             logo, texturen, skybox
   en plafond naar de meterkast (strekkende meters per type, draad, buis,
   steekverbinders op module-naden), materiaallijst en eigen PDF-blad.
   Buizen minstens 50 mm uit elkaar (gebundeld alleen het laatste stuk naar
-  de meterkast). Vloer-wcd's met leiding door de vloer. Elektra ook op de
+  de meterkast). Nooit door een raam of deur (`makeOpeningTest`): een
+  stijgleiding boven/onder een opening (wcd onder een raam) gaat eerst op
+  dezelfde hoogte opzij tot naast de opening, langs dezelfde wand met een
+  deur of raam ertussen via het plafond, gevellampen om de gevelhoeken heen,
+  en uit elkaar schuiven van buizen eindigt nooit in een opening. Vloer-wcd's met leiding door de vloer. Elektra ook op de
   PDF-bladen per wand, vloer en dakvlak (plafond). Alles verplaatsbaar door
   te slepen in de plattegrond. Kosten (groep Elektra): buis + draad per
   meter, boorgaten (geteld op stijlen, regels en balken), dozen,
@@ -150,8 +162,20 @@ assets/             logo, texturen, skybox
 - **Overkapping:** bij een dak over de hele woning met `cover` loopt het
   dak door tot de omhullende rechthoek waar geen unit staat (bijv. een
   terras naast een kortere module), met een afgewerkte onderplaat in de
-  kleur van het boeideel (`HouseModel.coverExtensions`).
-- **Dak over de hele woning:** tabblad Dak › "Over hele woning": één
+  kleur van het boeideel (`HouseModel.coverExtensions`). Palen
+  (Woning › Dak › Palen overkapping) komen onder de vrije dakrand; met
+  "Zijwand" krijgt een vrije hoek geen paal maar een gestuukte wand van
+  200 mm van de dakhoek terug tot de gevel, langs de zijkant van de
+  overkapping (bij een hoek tussen twee vrije randen de kant met de kortste
+  weg naar de gevel); in 3D, plattegrond, PDF, DXF en kosten
+  (`PostModel`, `dak.zijwandM2`/`dak.zijwandMontage`). Ligt de buitenkant
+  in het vlak van een gevel, dan loopt die bekleding (felsplaten, rabat,
+  steen) erover door, gelijk met de gevel en tot onder de dakrand.
+  Bij een overkapping (veranda, inpandig of uitpandig: het dak van een unit
+  steekt buiten zijn vloer, `HouseModel.hasCover`) is er geen wolfsdak: de
+  keuze verdwijnt en een bestaand wolfsdak wordt een zadeldak met dezelfde
+  goot en nok.
+- **Dak over de hele woning:** eigenschappen Woning › Dak › "Over hele woning": één
   dakvorm (zelfde invoer als per unit) over de omhullende rechthoek van alle
   units; een wolfsdak alleen bij een rechthoek (bij een L-/T-vorm zouden
   de wolfseinden kilkepers vragen, dan wordt het een zadeldak), bijv. een
@@ -185,18 +209,32 @@ assets/             logo, texturen, skybox
   aangrenzende, dan krijgt het een eigen rand rondom (boven het lage dak
   zonder spots). De rand van het lage dak loopt dan door tot de gevel van
   het hoge, of langs een zijgevel tot de volle overstek (onder de hoge
-  rand). Boeideel en daktrim steken 80 mm boven het dakleer uit.
+  rand). Boeideel en daktrim steken 80 mm boven het dakleer uit. Hebben
+  dak én gevel onder een rand felsplaten, dan komt er geen boeideel: de
+  dakplaat zet om over de rand, net vóór de gevelbekleding en zonder
+  opstand (`RoofModel.FELS_EDGE`, zetwerk zit in de prijs van de
+  felsplaten); een boeideel ernaast stopt gelijk met de buitenkant van zo'n
+  rand (ook naast daktrim). Onder de boeidelen zit op de gevel een
+  ventilatierooster van 40 mm (direct onder de onderplaat, op de
+  gevelbekleding; niet boven een veranda), zwart/antraciet/wit
+  (`RoofModel.VENT`, Woning › Dak › Boeideel; kosten `dak.ventRoosterM`).
 - **Gevel:** gevelbekleding per woning, met override per wand en per
   wandstuk: rabat (vochtdoek + kruislat + rabat 12 mm, kleur per woning,
   getekend als plankentextuur die over naden doorloopt), steen (181
-  texturen) of stucwerk (pleisterlaag 15 mm op cement-gebonden plaat, kleur
-  per woning, `WallModel.STUC`). Een zijde kan gesplitst worden (wand ›
+  texturen), stucwerk (pleisterlaag 15 mm op cement-gebonden plaat, kleur
+  per woning, `WallModel.STUC`) of felsplaten (staande naad, banen van
+  500 mm, zink/antraciet/zwart; opbouw als verticale rabat, kleuren gedeeld
+  met de felsplaten op het dak, `WallModel.FELS`; kosten `gevel.felsM2` en
+  `gevel.felsMontage`). Een zijde kan gesplitst worden (wand ›
   Wandstukken › Splitsen op, gemeten vanaf de linker vloerhoek van buitenaf):
   elk stuk wordt een eigen wand-element en kan een eigen gevel krijgen
   (bijv. stuc links, hout rechts). Steen is overal een
   steenstrip op een wit isolatieblok, samen 110 mm (`WallModel.STONE`).
   Het trasraam (cementplaat of een eigen steen) komt onder beide, dus
-  twee stenen kan. Latwerk, doek en metselwerk lopen per gevel door over
+  twee stenen kan. Op een stenen trasraam onder rabat, felsplaten of stuc
+  (minder ver uitstekend) komt een afdekker: zetwerk 5° aflopend met een
+  neus van 25 mm over de steen, onderbroken bij openingen, zwart/antraciet/wit
+  (`WallModel.TRAS_CAP`, `TRIM_COLORS`; kosten `gevel.afdekkerM`). Latwerk, doek en metselwerk lopen per gevel door over
   unit-naden. Sandwichpanelen rondom, 600 mm de grond in.
 - **Ruimtes** (`room/room-model.js`): elk door wanden afgesloten gebied is
   een ruimte, bepaald als een verfemmer: alles wat bereikbaar is zonder door
@@ -209,7 +247,7 @@ assets/             logo, texturen, skybox
   (o.a. tegels), FIBO-wandpanelen (decor, tot een hoogte of tot het plafond),
   eigen verfkleur en een vals plafond op een vaste hoogte (alleen waar het
   dak hoger ligt; wandafwerking en binnenspots volgen). Laag in de
-  plattegrond (Beeld › Tonen: Ruimtes), label met netto m², in de structuur,
+  plattegrond (Lagen › Ruimtes), label met netto m², in de structuur,
   het rapport, de kosten (vals plafond, FIBO) en op de PDF-plattegrond met
   een ruimtestaat. Het zaadpunt hoort bij een unit en schuift mee.
 - **Inrichting** (`interior/fixture-model.js`): zwevend toilet (wandcloset
@@ -217,8 +255,8 @@ assets/             logo, texturen, skybox
   (douchegoot, glaswand, regendouche), keukenblok (spoelbak, hoge kast met
   koelkast en oven, vaatwasser, bovenkasten), kookeiland met inductieplaat,
   kledingkast, bed, eettafel met stoelen, bank met chaise longue, fauteuil,
-  salontafel, tv-meubel, boiler en wasmachine. Binnen › Inrichting: kies
-  een stuk en klik in de plattegrond; slepen, bij een wand snapt de rug op
+  salontafel, tv-meubel, boiler en wasmachine. Gereedschap Inrichting (I): kies
+  een stuk in de werkbalk en klik in de plattegrond; slepen, bij een wand snapt de rug op
   het wandvlak (Alt = vrij), D = draaien, Del = verwijderen. Per stuk maten
   en opties (front, plek spoelbak, glaswand links/rechts, ...). In 2D, 3D
   (afgewerkte fase), de PDF-plattegrond, de structuur en de kosten (groep
@@ -226,26 +264,38 @@ assets/             logo, texturen, skybox
   schuift mee.
 - **Verlichting:** boeideel-spots of gevellampen (per gevel verdeeld,
   override per wand) en binnenspots in een raster per unit.
-- **Ribbon** (`core/ribbon.js`, vervangt de menubalk): Bestand · Start ·
-  Gevel · Dak · Binnen · Constructie · Verlichting · Rapport · Beeld · Extra,
-  plus een gekleurd tabblad voor de selectie (unit, wandstuk, binnenwand of
-  naadwand) dat vanzelf opent. Velden staan in groepen naast elkaar, met
-  schuiven voor maten met een logisch bereik. Dubbelklik op een tabblad
-  klapt de ribbon in. Plattegrond en 3D gebruiken de volle breedte; tabblad
-  Rapport toont het rapport (transport per unit, gewicht, afmetingen,
-  kosten, hout, plaatwerk, met staafdiagrammen) in plaats van de plattegrond.
-- **3D:** schuif Bouwfase linksonder; Beeld › Tonen: Dak/Lampen; Beeld ›
-  Doorsnede (wanden afgesneden op een instelbare hoogte, schuif in de ribbon
-  en onder de 3D, snede wit afgedekt), binnenzijde in een
-  verfkleur (afgewerkte fase), omgeving Ontwerp/Dag/Nacht, Render met lampen
-  als echte lichtbronnen.
+- **Indeling** (zelfde patroon als CAD/BIM-pakketten; elke functie op één plek):
+  bovenbalk met menu Bestand (nieuw, openen, opslaan, exporteren,
+  projectgegevens, kosten & tijden) · Beeld · Help, de geopende ontwerpen als
+  tabs en de knop Opslaan; links de structuur (groepen in-/uitklapbaar en
+  onthouden; de groep met de selectie klapt vanzelf open); in het midden een werkbalk met
+  gereedschap (Selecteren V, Binnenwand W, Ruimte R, Inrichting I, met de
+  opties van het actieve gereedschap ernaast; Unit toevoegen) en weergave
+  (Lagen, Omgeving, Doorsnede X, Render, Lopen L, Rapport 4, 2D + 3D / 2D /
+  3D met 1/2/3); rechts het eigenschappenpaneel: de selectie (unit,
+  wandstuk, binnenwand, ruimte, inrichting, elektra) met kruimelpad terug,
+  of zonder selectie de woning (kerncijfers en inklapbare secties Gevel,
+  Dak, Binnen, Verlichting, Elektra, Constructie); onderin een statusbalk
+  met de hint van het gereedschap en meldingen. Wand- en vloer/dak-editor
+  hebben dezelfde indeling (werkbalk boven, paneel met tabbladen en
+  Resultaat rechts; binnen de woning met "← Woning" of Esc terug). Help ›
+  Sneltoetsen (?) toont alle toetsen. Rapport toont transport per unit,
+  gewicht, afmetingen, kosten, hout en plaatwerk in plaats van de
+  plattegrond, als masonry (kaart in de kortste kolom, leesvolgorde blijft).
+- **3D en plattegrond:** één lagenmenu (Lagen in de werkbalk, met bouwfase
+  als snelkeuze) voor 3D en plattegrond; plattegrond zoomt met het
+  scrollwiel en de knoppen rechtsonder (F = passend), verschuiven met
+  slepen; Doorsnede (wanden afgesneden op een instelbare hoogte, schuif in
+  de werkbalk, snede wit afgedekt), binnenzijde in een verfkleur (afgewerkte
+  fase), omgeving Ontwerp/Dag/Nacht, Render met lampen als echte
+  lichtbronnen.
 - **Transport:** per unit buitenmaat (incl. gevelafwerking), hoogte en
   gewicht (vloer/wanden/dak) met een indicatieve breedteklasse.
 - **Uitvoer:** JSON opslaan/openen en een samenhangende PDF (aanzichten
   noord/oost/zuid/west als vlakke render met legenda afwerking, plattegrond,
   vloeren, wandstukken, binnenwanden, totalen).
-- **CAD-export (DXF):** Bestand › Exporteren › CAD (DXF), ook in de ribbon
-  Woning › Uitvoer; los van Opslaan/Ctrl+S. DXF R12 (AC1009), opent in elk
+- **CAD-export (DXF):** Bestand › Exporteren › CAD (DXF); los van
+  Opslaan/Ctrl+S. DXF R12 (AC1009), opent in elk
   CAD-pakket (AutoCAD, BricsCAD, DraftSight, LibreCAD, …); DWG maakt het
   CAD-pakket zelf met Opslaan als (echte DWG schrijven vergt een GPL- of
   commerciële bibliotheek). Modelruimte 1:1 in mm: plattegrond met noord
@@ -281,16 +331,79 @@ assets/             logo, texturen, skybox
   (`HouseIfc` COLORS). X = oost, Y = noord,
   Z = 0 op peil; zuidwesthoek van de units = 0,0 (zelfde als de DXF).
 - **Render-export (OBJ):** Bestand › Exporteren › Render (OBJ), ook in Woning ›
-  Uitvoer. De volledige afgewerkte woning (laatste bouwfase, dak, dakrand,
-  lampen, ruimtes, inrichting; los van de gekozen fase, doorsnede en
-  weergave-opties; zonder logobord, grond en lucht) als ZIP met `.obj`, `.mtl`
-  en `textures/*.png` (rabat, steen, riet, tegels). Meters, Y omhoog (de
+  Uitvoer. Voor een sfeerimpressie: alleen wat in de afgewerkte woning te zien
+  is (dak, dakrand, lampen, ruimtes, inrichting; los van de gekozen lagen,
+  doorsnede en weergave-opties; zonder buizen en dozen, binnenste vloerbalken,
+  latten en isolatie achter de gevel, lichtkegels, logobord, grond en lucht)
+  als ZIP met `.obj`, `.mtl`, `textures/*.png` (rabat, steen, riet, tegels) en
+  `<naam>_lampen.py`: in Blender uitvoeren importeert de OBJ en zet elke lamp
+  (gevellamp, dakrandspot, binnenspot) als echte spotlight met dezelfde plek,
+  richting en kegel als in de app (`LightingModel.lightSources`). Meters, Y omhoog (de
   standaard OBJ-import van Blender zet dat goed: noord = +Y), oorsprong op
   maaiveld onder het midden. Kleuren omgerekend van sRGB naar lineair (de app
   heeft geen kleurbeheer, Blender wel), PBR via `Pr`/`Pm`/`d`/`Ke` (ruwheid,
   metaal, doorzichtigheid glas, gloed lampen); textuurherhaling zit in de
   UV's (`ObjWriter`).
 
+## Light-versie (modelpagina's)
+
+Beperkte configurator voor de websitepagina van één model (later in de HUGO-build; nu los via
+`light.html?model=<sleutel uit HouseModel.MODELS>`). Inbedden: de stylesheets en scripts uit `light.html`
+plus `<div class="tectum-light" data-model="amstel"></div>` (mount vanzelf), of
+`TectumLight.mount(el, { model, frames, url, modelViewer })`.
+
+- **Rekent als de configurator** (zelfde `HouseModel.computeParts`, totalen en `CostModel`), maar toont
+  alleen: indicatieve prijs incl. btw (afgerond op € 100), buitenmaten, bouwhoogte, bruto/leefbaar m²,
+  inhoud en gewicht. Geen uren, zaaglijst, inkoop of kostenopbouw.
+- **Weergave:** 3D (afgewerkt, dag-omgeving), Doorsnede (wanden op een instelbare hoogte, standaard 1,5 m en hoogstens de laagste goot of de hoogte van een plat dak, afgesneden en wit afgedekt
+  met `HouseModel.sectionCaps`, dezelfde als de configurator; dak, dakrand, palen en lampen weg) en een
+  2D-plattegrond (ruimtes met netto m², wanden, kozijnen met draairichting, inrichting, dakrand, buitenmaten).
+- **Keuzes:** per unit breedte, diepte, goothoogte en dakvorm met richting (lessenaar: hoge kant noord/zuid/
+  west/oost; zadel- en wolfsdak: nok noord–zuid of west–oost); bij een hellend dak de nokhoogte (lessenaar:
+  hoge kant, met de helling eronder; de goot omhoog neemt de nok mee), bij een wolfsdak ook de hoogte van het
+  wolfseind (bij een dak over de hele woning één keer), dakbedekking, gevelbekleding (hout met richting, felsplaten, stuc, steenstrips; kleur),
+  het accent van het model (de afwijkende gevel; of geen), trasraam (geen of steen, met hoogte; een cementplaat-trasraam van het model wordt geen), boeidelen of daktrim
+  (met kleur boeidelen; een model met beide houdt zijn indeling tot je kiest), zetwerk-kleur (afdekker trasraam en
+  ventilatierooster), binnenspots aan/uit en het type buitenverlichting. Wolfsdak over de hele
+  woning alleen als de units samen een rechthoek vormen en nooit bij een overkapping (zoals de configurator). Geen openingen,
+  binnenwanden, inrichting of elektra; die volgen het model.
+- **Keuzes op een schone kopie:** `LightModel.build` past de keuzes elke keer toe op het model zelf; wat niet
+  afwijkt blijft precies zoals in het model. Bij een andere maat schuiven binnenwanden mee met hun unit en
+  schuift wat tegen de oost- of zuidgevel staat (binnenwand-eindpunt, inrichting) mee met die gevel (`BAND`).
+  Bij een andere hoogte gaan de binnenwanden van die unit evenveel mee. Een andere dakvorm dan die van het
+  model krijgt de helling uit `LightModel.PITCH` (lessenaar 10°, zadel 30°, wolfsdak 35°).
+- **Kaders:** standaard `UnitModel.LIMITS` (maat 2,4–14 m, max 4,7 m in één richting; hoogte 2,4–3 m), per
+  model te beperken in `LightModel.FRAMES` of per pagina met `frames` (zelfde vorm; `null` = maat staat vast).
+- **Indelingscontrole** (`LightModel.check`): een keuze waarbij ramen of deuren niet meer passen
+  (verschoven, ingeklemd, te hoog of over een naad), een binnenwand buiten de units valt, inrichting door
+  een gevel steekt, ruimtes verdwijnen of units overlappen, wordt geweigerd; vergeleken met het model zelf.
+  Bij een maat wordt de dichtstbijzijnde maat gezocht die nog past.
+- **Indeling:** paneel als accordeon (Afmetingen, Dak, Gevel, Verlichting; één open, de kop vat de keuze samen),
+  kerncijfers en prijs met PDF-knop onderaan. Responsief op de breedte van de tool zelf (container queries; in de
+  site in een Bootstrap col-12): vanaf 720 px naast elkaar, smaller 3D boven en de keuzes eronder met prijs en
+  PDF vast onderin beeld. Stijl alles onder `.tectum-light` (Bootstrap-reboot geneutraliseerd); Bootstrap Icons
+  nodig (`css/vendor/bootstrap-icons.min.css`). Het scrollwiel scrolt de pagina, tenzij je in de 3D hebt
+  geklikt of Ctrl/⌘ ingedrukt houdt. Zijwaarts schuiven: rechts of middelste knop slepen, Shift/Ctrl/⌘ +
+  slepen, of de pijltjestoetsen met de muis boven de 3D. Touch: één vinger draaien, twee vingers knijpen/schuiven (eigen
+  OrbitControls, geldt ook voor de configurator).
+- **Opslaan = PDF** (`LightPdf`): voorblad "Uw woningontwerp" (beeld uit de 3D-weergave, kerncijfers, keuzes
+  in woorden via `LightModel.describe`, indicatieve prijs, contactgegevens en een QR-code naar de modelpagina
+  op de site, of `data-url`/`url` van de pagina), dan aanzichten en plattegrond
+  (`HousePdf.generate(state, { customer: true, doc })`: zonder onderdelenlijst, elementcodes, elektra en
+  kosten) en als laatste het stappenplan van de site ("Hoe verloopt het traject?") met een blok over maatwerk
+  met de eigen software (keuken op maat, indeling, ramen en deuren). Contact en stappen staan
+  in `LightPdf.COMPANY` en `STEPS`.
+- **AR / schermvullend:** knop rechtsboven in de weergave. Op een telefoon of tablet: het ontwerp als GLB
+  (`GlbWriter`, afgewerkte woning zoals in 3D, één primitive per materiaal, texturen als JPEG/PNG tot 1024 px,
+  lichtbundels weg; maaiveld onder het midden = oorsprong, `HouseModel.groundOrigin`) in model-viewer, over de
+  hele pagina, met de knop "Bekijk in je tuin" (ware grootte; `ar-modes="webxr scene-viewer quick-look"`, op iOS
+  maakt model-viewer zelf de USDZ). model-viewer wordt pas bij de eerste keer geladen
+  (`js/vendor/model-viewer-umd.min.js` naast `js/light/`, of `modelViewer`/`data-model-viewer`). AR vraagt
+  https; Scene Viewer (Android zonder WebXR) heeft bovendien een publieke URL van de GLB nodig, een blob-URL
+  werkt daar niet. Op de desktop: de weergave schermvullend (Fullscreen API; het scrollwiel zoomt dan direct).
+  Per ontwerp wordt de GLB één keer gemaakt; `el.tectumLight.glb()` geeft `{ blob, url, stats }` (op
+  `light.html` de testknop GLB).
+
 ## Kosten en prijzen (CSV)
 
 Alle waarden van het kostenmodel staan in twee CSV-bestanden in `kosten/`, die
@@ -340,7 +453,7 @@ hout.balk.38x235;Constructiehout vuren C24 38×235;€/m;4,91;Houthandel Y;;2026
   pendiktes via de plotstijl. Geen doorsnede en geen dakaanzicht. Eenheid
   staat niet in het bestand: in CAD op millimeters zetten (UNITS) als het
   pakket erom vraagt.
-- OBJ: geen lichtbronnen (lampen alleen als gloeiend materiaal), geen
+- OBJ: lichtbronnen alleen via het meegeleverde Blender-script, geen
   reliëf-/normaalkaarten; glas als doorzichtig materiaal, in Blender eventueel
   op Glass BSDF zetten.
 - IFC: onderdelen zijn driehoeksnetten (niet parametrisch); geen
@@ -376,7 +489,19 @@ hout.balk.38x235;Constructiehout vuren C24 38×235;€/m;4,91;Houthandel Y;;2026
   13 × 10 m, hoofdvolume met flauw zadeldak (twee lessenaars die op de naad
   de nok vormen) en een vleugel met plat dak, steenstrips rondom met een
   schoorsteen (800 mm, hart op de naad) in de oostgevel, kookeiland, logeerkamer en
-  apart toilet in de vleugel. De standaardmodellen staan in
+  apart toilet in de vleugel. Model **Reest** (`HouseModel.createReest`,
+  naar `examples/ontwerp_reest.pdf`): 12,9 × 7,85 m, hoofdvolume
+  11,5 × 4,8 m onder één lessenaarsdak (hoog aan de noordgevel, twee units
+  van 3,4 en 1,4 m met lessenaars in hetzelfde vlak) dat aan de westkop
+  1,4 m doorloopt als overkapping bij de voordeur, dicht met een witte
+  zijwand; aanbouw met plat dak (toilet, berging, entree met open doorgang
+  naar de woonkamer, daktrim i.p.v. boeidelen); zuidgevel en dak in
+  antraciet felsplaten (zuidrand zonder boeideel, de felsplaten lopen over
+  de zijwand door), verder verticale rabat. Model **Vecht** (`HouseModel.createVecht`): U-vorm
+  13 × 9,5 m, drie units (slaapvleugel west, tussenlid met entree, leefvleugel oost) met de holte open naar
+  het noorden; de vleugels lessenaars die naar de holte aflopen, het tussenlid plat op dezelfde goot, de
+  overkapping van het tussenlid dekt de holte (palen niet nodig); zwarte verticale rabat, wit stucwerk aan de
+  holte. De standaardmodellen staan in
   `HouseModel.MODELS`; Bestand › Snel nieuw en het venster Nieuw worden
   daaruit opgebouwd (nieuw model = één regel plus een `create`-functie die
   `modelKit` gebruikt). De L-woning (8 × 3,6 m + 4,5 × 3,6 m) blijft

css/app.css

@@ -39,30 +39,6 @@
     }
 
 
-    #app-container { display: flex; width: 100%; height: 100%; }
-
-    #left-column {
-      flex: 1;
-      display: flex;
-      flex-direction: column;
-      height: 100%;
-      min-height: 0;
-      min-width: 0;
-      border-right: 1px solid var(--border);
-    }
-
-    #right-column {
-      flex: 1;
-      display: flex;
-      flex-direction: column;
-      height: 100%;
-      min-height: 0;
-      min-width: 0;
-    }
-
-    #app-container.fullscreen-3d #left-column { display: none; }
-    #app-container.fullscreen-2d #right-column { display: none; }
-
     #pane-2d-container {
       flex: 1;
       display: flex;
@@ -85,14 +61,6 @@
     .pane-2d-half { flex: 1; position: relative; min-width: 0; min-height: 0; background: var(--viewport-bg); }
     .pane-2d-half + .pane-2d-half { border-left: 1px solid var(--border); }
 
-    #control-panel {
-      height: 380px;
-      background: var(--van-emous-ultra-light);
-      border-top: 1px solid var(--border);
-      display: flex;
-      flex-direction: column;
-    }
-
     .tab-bar {
       display: flex;
       background: var(--van-emous-blue);
@@ -148,39 +116,6 @@
     }
     .tab-content.active { display: block; }
 
-    #pane-3d { flex: 1; position: relative; min-height: 0; background: var(--viewport-bg); }
-
-    #specs-panel-3d {
-      height: 380px;
-      background: var(--van-emous-ultra-light);
-      border-top: 1px solid var(--border);
-      overflow-y: auto;
-      padding: 15px 20px;
-    }
-    #specs-panel-3d .controls-grid { grid-template-columns: 1fr 1fr; }
-
-    .toolbar-3d {
-      position: absolute;
-      top: 15px;
-      right: 15px;
-      z-index: 10;
-      display: flex;
-      gap: 8px;
-    }
-    .btn-3d-toggle {
-      background: rgba(0, 0, 0, 0.75);
-      border: 1px solid var(--primary-on-dark);
-      color: var(--primary-on-dark);
-      padding: 6px 12px;
-      border-radius: 4px;
-      font-size: 12px;
-      font-weight: bold;
-      text-transform: uppercase;
-      letter-spacing: 0.5px;
-      cursor: pointer;
-    }
-    .btn-3d-toggle.active { background: var(--primary); border-color: var(--primary); color: #fff; }
-
     .pane-label {
       position: absolute;
       top: 15px;
@@ -292,28 +227,6 @@
     .material-toggle-btn:hover:not(.active) { border-color: var(--primary); color: var(--primary); }
 html, body { height: 100%; }
 
-#tab-bar {
-  height: 34px;
-  background: var(--van-emous-ultra-light);
-  border-bottom: 1px solid var(--border);
-  display: flex;
-  align-items: stretch;
-  overflow-x: auto;
-}
-.tab-item {
-  display: flex; align-items: center; gap: 8px;
-  padding: 0 12px; font-size: 12px; color: var(--text-muted);
-  border-right: 1px solid var(--border-soft); border-bottom: 2px solid transparent; cursor: pointer; white-space: nowrap;
-}
-.tab-item:hover { color: var(--text); }
-.tab-item.active { background: var(--surface); color: var(--text); border-bottom: 2px solid var(--primary); }
-.tab-item .tab-close {
-  color: var(--text-faint); font-size: 14px; line-height: 1; padding: 2px;
-}
-.tab-item .tab-close:hover { color: var(--danger); }
-
-body { display: flex; flex-direction: column; }
-#tab-bar { flex: none; }
 #workspace { width: 100vw; flex: 1; min-height: 0; position: relative; }
 #workspace-empty {
   height: 100%; display: flex; align-items: center; justify-content: center;
@@ -433,29 +346,6 @@ body { display: flex; flex-direction: column; }
 .new-option:hover:not(.disabled) { border-color: var(--primary); color: var(--primary); background: var(--primary-soft); }
 .new-option.disabled { opacity: .4; cursor: not-allowed; }
 
-#floor-app { display: flex; width: 100%; height: 100%; }
-#floor-left-column {
-  flex: 1; display: flex; flex-direction: column; height: 100%; min-height: 0; min-width: 0;
-  border-right: 1px solid var(--border);
-}
-#floor-right-column { flex: 1; display: flex; flex-direction: column; height: 100%; min-height: 0; min-width: 0; }
-#floor-app.fullscreen-3d #floor-left-column { display: none; }
-#floor-app.fullscreen-2d #floor-right-column { display: none; }
-#floor-pane-2d-container { flex: 1; display: flex; flex-direction: column; min-height: 0; width: 100%; }
-#floor-control-panel { height: 380px; background: var(--van-emous-ultra-light); border-top: 1px solid var(--border); display: flex; flex-direction: column; }
-#floor-control-panel .tab-content { padding: 15px 20px; overflow-y: auto; flex: 1; display: none; }
-#floor-control-panel .tab-content.active { display: block; }
-#floor-pane-3d { flex: 1; position: relative; min-height: 0; background: var(--viewport-bg); }
-#floor-specs-panel-3d {
-  height: 380px; background: var(--van-emous-ultra-light); border-top: 1px solid var(--border); overflow-y: auto; padding: 15px 20px;
-}
-#floor-specs-panel-3d .controls-grid { grid-template-columns: 1fr 1fr; }
-
-#house-app { display: flex; width: 100%; height: 100%; }
-#house-nav {
-  width: 240px; flex: none; display: flex; flex-direction: column; gap: 6px;
-  background: var(--van-emous-blue); border-right: 1px solid var(--border); padding: 10px 8px; overflow-y: auto;
-}
 .hn-title { font-size: 12px; font-weight: bold; color: var(--primary); text-transform: uppercase; letter-spacing: .8px; padding: 2px 6px 6px; }
 #house-nav-tree { display: flex; flex-direction: column; gap: 2px; }
 .hn-group { margin-top: 6px; }
@@ -475,50 +365,20 @@ body { display: flex; flex-direction: column; }
 .hn-item.disabled:hover { background: none; color: #9aa4b0; }
 .hn-actions { display: flex; gap: 6px; margin-top: 10px; }
 .hn-actions .io-btn { flex: 1; }
-#house-nav .io-status { margin: auto 0 0; padding: 6px; }
 
-#house-part-host { flex: 1; min-width: 0; min-height: 0; display: flex; flex-direction: column; }
-#house-part-host > #app-container,
-#house-part-host > #floor-app,
-#house-part-host > #house-overview { flex: 1; min-height: 0; height: auto; }
-
-#house-overview { display: flex; width: 100%; }
-.ho-views { flex: 1; display: flex; min-width: 0; min-height: 0; }
-.ho-pane { flex: 1; position: relative; min-height: 0; min-width: 0; background: var(--viewport-bg); }
-#ho-pane-plan { border-right: 1px solid var(--border); }
-@media (max-width: 1100px) {
-  .ho-views { flex-direction: column; }
-  #ho-pane-plan, .ho-report { border-right: none; border-bottom: 1px solid var(--border); }
-}
-#house-overview.fullscreen-3d #ho-pane-plan, #house-overview.fullscreen-3d .ho-report { display: none !important; }
-#house-overview.fullscreen-2d #ho-pane-3d { display: none; }
 .ho-report { display: none; flex: 1; min-width: 0; min-height: 0; overflow-y: auto; padding: 14px 18px 20px; background: var(--van-emous-ultra-light); border-right: 1px solid var(--border); }
 #house-overview.show-report .ho-report { display: block; }
 #house-overview.show-report #ho-pane-plan { display: none; }
-.ho-report .ui-spec-grid { grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); align-items: start; }
 .ho-report-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 12px; }
 .ho-report-head h1 { margin: 0; font-size: 14px; }
 .ho-report-head span { font-size: 12px; color: var(--text-muted); }
 .ho-warn { position: absolute; top: 52px; left: 15px; right: 15px; z-index: 9; pointer-events: none; }
 .ho-warn .ui-warn { margin: 0 0 6px; max-width: 560px; }
-.ho-hint {
-  position: absolute; left: 15px; bottom: 10px; font-size: 11px; color: #bbb;
-  background: rgba(0, 0, 0, .6); padding: 3px 8px; border-radius: 4px; pointer-events: none;
-}
 .ho-prop-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
 .io-btn-danger { border-color: #e3b4b0; color: var(--danger); }
 .io-btn-danger:hover { border-color: var(--danger); color: var(--danger); background: var(--danger-soft); }
 .control-group input:disabled { opacity: .5; cursor: not-allowed; background: var(--border-soft); }
 
-.view-filter { position: relative; }
-.vf-menu {
-  position: absolute; right: 0; top: 100%; margin-top: 6px; min-width: 210px; display: none;
-  background: rgba(0, 0, 0, 0.88); border: 1px solid #444; border-radius: 4px; padding: 8px 12px; z-index: 20;
-}
-.vf-menu.open { display: block; }
-.vf-item { display: flex; align-items: center; gap: 8px; color: #eee; font-size: 13px; padding: 4px 0; cursor: pointer; user-select: none; }
-.vf-item input { accent-color: var(--primary-on-dark); width: 15px; height: 15px; cursor: pointer; }
-
 .bi { line-height: 1; vertical-align: -0.125em; }
 .ui-section { margin-bottom: 14px; }
 .ui-section h2, .ui-spec-card h2 {
@@ -574,7 +434,6 @@ body { display: flex; flex-direction: column; }
 .ui-tab-page { display: none; }
 .ui-tab-page.active { display: block; }
 
-.ui-spec-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
 .ui-spec-card { background: var(--surface); border: 1px solid var(--border-soft); border-radius: 6px; padding: 10px 12px; }
 .ui-spec-row { display: flex; justify-content: space-between; gap: 10px; font-size: 12px; padding: 3px 0; border-bottom: 1px dashed var(--border-soft); }
 .ui-spec-row:last-child { border-bottom: none; }
@@ -583,12 +442,10 @@ body { display: flex; flex-direction: column; }
 .ui-spec-total { border-top: 1px solid var(--border); margin-top: 4px; padding-top: 2px; }
 .ui-spec-total .ui-spec-val { color: var(--primary); }
 
-.btn-3d-toggle { display: inline-flex; align-items: center; gap: 6px; }
 .hn-item .bi { margin-right: 6px; color: var(--text-muted); }
 .hn-item.active .bi, .hn-item:hover .bi { color: var(--primary); }
 .hn-label { display: inline-flex; align-items: center; }
 
-.render-only #specs-panel-3d, .render-only #floor-specs-panel-3d { display: none; }
 
 .control-group { min-height: 28px; margin-bottom: 3px; gap: 10px; }
 .control-group label { font-size: 12.5px; color: var(--text); }
@@ -606,9 +463,6 @@ h1 { display: flex; align-items: center; gap: 7px; font-size: 12px; font-weight:
 .hn-title { display: flex; align-items: center; gap: 6px; }
 .file-protocol-warning { position: fixed; left: 50%; bottom: 16px; transform: translateX(-50%); z-index: 9000; max-width: 640px; box-shadow: 0 8px 20px rgba(33,33,33,.2); }
 .file-protocol-warning code { background: rgba(0,0,0,.06); padding: 0 4px; border-radius: 3px; }
-.vf-option { gap: 9px; }
-.vf-option.active { color: var(--primary-on-dark); font-weight: 600; }
-.vf-menu .vf-option:hover { color: var(--primary-on-dark); }
 
 .hs-stone-preview { display: block; width: 128px; height: auto; margin: 4px 0 8px; border: 1px solid var(--border, #ccc); border-radius: 3px; }
 
@@ -635,21 +489,13 @@ h1 { display: flex; align-items: center; gap: 7px; font-size: 12px; font-weight:
 .ui-range input[type=number] { width: 84px; }
 .ui-swatch { height: 14px; border-radius: 3px; border: 1px solid var(--border); margin: 2px 0 6px; }
 
-.stage-bar {
-  position: absolute; left: 15px; bottom: 14px; z-index: 10; min-width: 300px; max-width: calc(100% - 30px);
-  background: rgba(0, 0, 0, 0.75); border: 1px solid #444; border-radius: 6px; padding: 7px 12px 6px; color: #eee; font-size: 12px;
+.plan-zoom { position: absolute; right: 12px; bottom: 12px; z-index: 10; display: flex; flex-direction: column; gap: 4px; }
+.plan-zoom button {
+  width: 30px; height: 30px; display: flex; align-items: center; justify-content: center; cursor: pointer;
+  background: rgba(0, 0, 0, 0.75); border: 1px solid #555; border-radius: 4px; color: #eee; font-size: 14px;
 }
-.stage-row, .stage-extra { display: flex; align-items: center; gap: 10px; }
-.stage-title { display: inline-flex; align-items: center; gap: 6px; color: var(--primary-on-dark); font-weight: 600; white-space: nowrap; }
-.stage-range { flex: 1; min-width: 90px; accent-color: var(--primary-on-dark); }
-.stage-name { min-width: 84px; font-weight: 600; white-space: nowrap; }
-.stage-track { flex: 1; display: flex; flex-direction: column; min-width: 120px; }
-.stage-track .stage-range { width: 100%; margin: 0; }
-.stage-ticks { display: flex; justify-content: space-between; padding: 0 3px; font-size: 10px; color: #888; }
-.stage-ticks span { cursor: pointer; padding: 0 3px; }
-.stage-ticks span.on { color: var(--primary-on-dark); }
-.stage-extra { display: none; margin-top: 6px; padding-top: 6px; border-top: 1px solid #444; }
-.stage-extra.show { display: flex; }
+.plan-zoom button:hover { border-color: var(--primary-on-dark); color: var(--primary-on-dark); }
+.plan-zoom-val { text-align: center; font-size: 10px; color: #aaa; }
 
 .viz { --series-1: #2a78d6; --series-2: #eb6834; --series-3: #1baf7a; --track: #eef1f5; }
 .viz-legend { display: flex; flex-wrap: wrap; gap: 12px; font-size: 11px; color: var(--text-muted); margin: -2px 0 8px; }
@@ -671,72 +517,316 @@ h1 { display: flex; align-items: center; gap: 7px; font-size: 12px; font-weight:
 .viz-val { font-size: 12px; font-weight: 600; font-variant-numeric: tabular-nums; color: var(--text); text-align: right; white-space: nowrap; }
 .viz-note { font-size: 11px; color: var(--text-faint); line-height: 1.45; margin-top: 6px; }
 
-#ribbon { flex: none; background: var(--van-emous-blue); border-bottom: 1px solid var(--border); position: relative; z-index: 100; user-select: none; }
-.rb-top { display: flex; align-items: flex-end; height: 34px; padding: 0 8px; }
-.rb-brand { display: flex; align-items: center; height: 100%; padding: 0 14px 0 4px; font-weight: 700; color: var(--primary); letter-spacing: .5px; }
-.rb-tabs { display: flex; gap: 2px; height: 100%; align-items: flex-end; overflow-x: auto; scrollbar-width: none; }
-.rb-tab {
-  display: inline-flex; align-items: center; gap: 6px; height: 28px; padding: 0 14px; border: 1px solid transparent; border-bottom: none;
-  border-radius: 5px 5px 0 0; background: none; font: inherit; font-size: 12.5px; color: var(--nav-link-color); cursor: pointer; white-space: nowrap;
-}
-.rb-tab:hover { background: rgba(255, 255, 255, .55); color: var(--primary); }
-.rb-tab.active { background: var(--van-emous-ultra-light); border-color: var(--border); color: var(--primary); font-weight: 600; margin-bottom: -1px; height: 29px; }
-.rb-tab.rb-ctx { color: #fff; background: var(--primary); margin-left: 10px; }
-.rb-tab.rb-ctx:hover { background: var(--primary-hover); color: #fff; }
-.rb-tab.rb-ctx.active { background: var(--van-emous-ultra-light); color: var(--primary); box-shadow: inset 0 3px 0 var(--primary); }
-.rb-right { margin-left: auto; display: flex; align-items: center; height: 100%; gap: 10px; font-size: 11px; color: var(--text-muted); padding-left: 12px; }
-.rb-body {
-  position: relative; display: flex; align-items: stretch; height: 104px; padding: 6px 40px 4px 6px;
-  background: var(--van-emous-ultra-light); border-top: 1px solid var(--border); overflow-x: auto; overflow-y: hidden;
-}
-#ribbon.rb-collapsed .rb-body { display: none; }
-.rb-collapse { position: absolute; right: 8px; bottom: 6px; border: none; background: none; color: var(--text-faint); cursor: pointer; padding: 2px 4px; }
-.rb-collapse:hover { color: var(--primary); }
-.rb-group { display: flex; flex-direction: column; flex: none; padding: 0 12px; border-right: 1px solid var(--border-soft); }
-.rb-group:last-of-type { border-right: none; }
-.rb-group-body { flex: 1; display: grid; grid-auto-flow: column; grid-template-rows: repeat(3, 26px); column-gap: 16px; align-items: center; justify-content: start; }
-.rb-group-label { text-align: center; font-size: 10.5px; color: var(--text-faint); padding-top: 2px; white-space: nowrap; }
-.rb-btn {
-  display: inline-flex; align-items: center; gap: 6px; border: 1px solid transparent; background: none; border-radius: 4px;
-  font: inherit; font-size: 12px; color: var(--text); cursor: pointer; white-space: nowrap;
-}
-.rb-btn:hover:not(:disabled) { background: var(--primary-soft); border-color: rgba(185, 89, 19, .25); color: var(--primary); }
-.rb-btn:disabled { color: #a9b2bd; cursor: default; }
-.rb-btn.active { background: var(--primary-soft); border-color: var(--primary); color: var(--primary); }
-.rb-btn.rb-danger:hover:not(:disabled) { background: var(--danger-soft); border-color: var(--danger); color: var(--danger); }
-.rb-small { height: 24px; padding: 0 7px; }
-.rb-small .bi { font-size: 14px; color: var(--primary); }
-.rb-btn:disabled .bi { color: inherit; }
-.rb-big { grid-row: span 3; flex-direction: column; justify-content: center; gap: 4px; min-width: 64px; height: 76px; padding: 4px 8px; text-align: center; }
-.rb-big .bi { font-size: 24px; color: var(--primary); }
-.rb-big span { white-space: normal; max-width: 86px; line-height: 1.2; }
-.rb-kv { display: flex; justify-content: space-between; gap: 12px; font-size: 11.5px; color: var(--text-muted); min-width: 150px; }
-.rb-kv b { color: var(--text); font-variant-numeric: tabular-nums; }
-.rb-kv small { font-weight: normal; color: var(--text-faint); margin-left: 2px; }
-.rb-note { grid-row: span 3; max-width: 260px; font-size: 11px; line-height: 1.4; color: var(--text-muted); white-space: normal; align-self: center; }
-.rb-note.rb-warn { color: var(--danger); }
-.rb-group .ui-field { min-height: 0; height: 26px; gap: 8px; }
-.rb-group .ui-field label { font-size: 11.5px; color: var(--text-muted); white-space: nowrap; }
-.rb-group .ui-control input[type=number] { width: 70px; padding: 2px 5px; font-size: 12px; }
-.rb-group .ui-control select, .rb-group .ui-control input[type=text] { width: 132px; padding: 2px 4px; font-size: 12px; }
-.rb-group .ui-control input[type=color] { width: 46px; height: 22px; padding: 0; border: 1px solid var(--border); border-radius: 3px; background: none; }
-.rb-group .ui-unit { width: 20px; margin-left: 3px; font-size: 10.5px; }
-.rb-group .ui-switch { margin-right: 0; }
-.rb-group .ui-field-range { flex-wrap: nowrap; padding: 0; }
-.rb-group .ui-field-range label { flex: none; }
-.rb-group .ui-range { flex: none; gap: 6px; }
-.rb-group .ui-range input[type=range] { width: 96px; flex: none; }
-.rb-group .ui-range input[type=number] { width: 62px; }
-.rb-thumb { width: 26px; height: 26px; border-radius: 3px; border: 1px solid var(--border); object-fit: cover; display: block; }
-.rb-swatch { width: 26px; height: 22px; border-radius: 3px; border: 1px solid var(--border); }
-.rb-seg { display: inline-flex; border: 1px solid var(--border); border-radius: 4px; overflow: hidden; height: 24px; }
-.rb-seg .rb-btn { border-radius: 0; border: none; border-right: 1px solid var(--border-soft); height: 22px; padding: 0 8px; }
-.rb-seg .rb-btn:last-child { border-right: none; }
-.rb-seg .rb-btn.active { background: var(--primary); color: #fff; }
-.rb-seg .rb-btn.active .bi { color: #fff; }
-.rb-check { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text); cursor: pointer; white-space: nowrap; }
-.rb-check input { accent-color: var(--primary); }
+/* ===== Shell: bovenbalk (menu + documenten), editorindeling, werkbalk, eigenschappen, statusbalk ===== */
+:root { --panel-w: 340px; --nav-w: 230px; }
+body { display: flex; flex-direction: column; }
 
-.rb-pair { display: flex; align-items: center; gap: 6px; }
-.rb-cols { grid-row: span 3; display: grid; grid-auto-flow: column; grid-template-rows: repeat(3, 26px); column-gap: 18px; align-items: center; }
-.rb-cols:empty { display: none; }
+#topbar {
+  flex: none; height: 40px; display: flex; align-items: stretch; gap: 4px; padding: 0 10px 0 4px;
+  background: var(--van-emous-blue); border-bottom: 1px solid var(--border); position: relative; z-index: 200; user-select: none;
+}
+.tb-brand { display: flex; align-items: center; padding: 0 12px 0 8px; font-weight: 700; color: var(--primary); letter-spacing: .5px; }
+#menubar { display: flex; align-items: center; }
+.mb-menu { position: relative; height: 100%; display: flex; align-items: center; }
+.mb-top { height: 28px; padding: 0 10px; border: none; background: none; border-radius: 4px; font: inherit; font-size: 13px; color: var(--text); cursor: pointer; }
+.mb-top:hover, .mb-menu.open .mb-top { background: rgba(255, 255, 255, .7); color: var(--primary); }
+.mb-drop {
+  display: none; position: absolute; top: calc(100% - 3px); left: 0; min-width: 260px; padding: 4px;
+  background: var(--surface); border: 1px solid var(--border); border-radius: 6px; box-shadow: 0 10px 28px rgba(33, 33, 33, .18); z-index: 300;
+}
+.mb-menu.open .mb-drop { display: block; }
+.mb-item {
+  display: grid; grid-template-columns: 22px 1fr auto; align-items: center; gap: 6px; width: 100%; padding: 6px 8px;
+  border: none; background: none; border-radius: 4px; font: inherit; font-size: 13px; color: var(--text); text-align: left; cursor: pointer;
+}
+.mb-item:hover:not(:disabled) { background: var(--primary-soft); color: var(--primary); }
+.mb-item:disabled { color: var(--text-faint); cursor: default; }
+.mb-ico .bi { color: var(--text-muted); }
+.mb-item:hover:not(:disabled) .mb-ico .bi, .mb-item.checked .mb-ico .bi { color: var(--primary); }
+.mb-item:disabled .mb-ico .bi { color: inherit; }
+.mb-keys { font-size: 11.5px; color: var(--text-faint); padding-left: 18px; white-space: nowrap; }
+.mb-sep { height: 1px; background: var(--border-soft); margin: 4px 6px; }
+.mb-head { font-size: 10.5px; text-transform: uppercase; letter-spacing: .6px; color: var(--text-faint); padding: 6px 8px 2px 36px; }
+
+#doc-tabs { display: flex; align-items: flex-end; gap: 2px; flex: 1; min-width: 0; margin-left: 14px; overflow: hidden; }
+.doc-tab {
+  display: flex; align-items: center; gap: 4px; flex: 0 1 auto; min-width: 70px; max-width: 220px; height: 32px; padding: 0 4px 0 12px;
+  border: 1px solid transparent; border-bottom: none; border-radius: 6px 6px 0 0; font-size: 12.5px; color: var(--text-muted); cursor: pointer;
+}
+.doc-tab:hover { background: rgba(255, 255, 255, .5); color: var(--text); }
+.doc-tab.active { background: var(--surface); border-color: var(--border); color: var(--text); font-weight: 600; height: 33px; margin-bottom: -1px; }
+.doc-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+.doc-close { width: 20px; height: 20px; flex: none; border: none; background: none; border-radius: 4px; color: var(--text-faint); font-size: 15px; line-height: 1; cursor: pointer; }
+.doc-close:hover { background: var(--danger-soft); color: var(--danger); }
+.top-right { display: flex; align-items: center; gap: 12px; margin-left: auto; padding-left: 12px; font-size: 11px; color: var(--text-muted); white-space: nowrap; }
+.top-save {
+  display: inline-flex; align-items: center; gap: 6px; height: 28px; padding: 0 12px; border: 1px solid var(--primary); border-radius: 4px;
+  background: var(--primary); color: #fff; font: inherit; font-size: 12.5px; font-weight: 600; cursor: pointer;
+}
+.top-save:hover:not(:disabled) { background: var(--primary-hover); }
+.top-save:disabled { opacity: .45; cursor: default; }
+
+/* Editoren: [werkbalk + viewports] | paneel rechts. Dezelfde indeling voor woning, wand en vloer/dak. */
+.ed-app, #house-overview { display: flex; width: 100%; height: 100%; min-height: 0; }
+.ed-main { flex: 1; min-width: 0; min-height: 0; display: flex; flex-direction: column; }
+.ed-views, .ho-views { flex: 1; min-height: 0; min-width: 0; display: flex; }
+#left-column, #right-column, #floor-left-column, #floor-right-column { flex: 1; min-width: 0; min-height: 0; display: flex; flex-direction: column; }
+#left-column, #floor-left-column { border-right: 1px solid var(--border); }
+#floor-pane-2d-container { flex: 1; display: flex; flex-direction: column; min-height: 0; width: 100%; }
+#pane-3d, #floor-pane-3d { flex: 1; position: relative; min-height: 0; background: var(--viewport-bg); }
+.ed-app.fullscreen-3d #left-column, .ed-app.fullscreen-3d #floor-left-column { display: none; }
+.ed-app.fullscreen-2d #right-column, .ed-app.fullscreen-2d #floor-right-column { display: none; }
+.ed-panel { width: var(--panel-w); flex: none; min-height: 0; display: flex; flex-direction: column; background: var(--van-emous-ultra-light); border-left: 1px solid var(--border); }
+.ed-panel .tab-content { padding: 12px 14px; }
+.ed-panel .controls-grid { grid-template-columns: 1fr; gap: 4px; }
+.ed-panel .tab-btn { padding: 9px 4px; font-size: 12px; gap: 5px; }
+.ed-panel .io-toolbar:has(.io-status:empty) { display: none; }
+#specs-panel-3d, #floor-specs-panel-3d { padding: 0; }
+body.panels-hidden .ed-panel, body.panels-hidden #house-nav, body.panels-hidden .statusbar { display: none; }
+
+#house-app { display: flex; flex-direction: column; width: 100%; height: 100%; }
+.house-body { flex: 1; min-height: 0; display: flex; }
+#house-nav {
+  width: var(--nav-w); flex: none; display: flex; flex-direction: column; gap: 6px; padding: 10px 8px; overflow-y: auto;
+  background: var(--van-emous-blue); border-right: 1px solid var(--border);
+}
+#house-part-host { flex: 1; min-width: 0; min-height: 0; display: flex; flex-direction: column; }
+#house-part-host > .ed-app, #house-part-host > #house-overview { flex: 1; min-height: 0; height: auto; }
+.ho-pane { flex: 1; position: relative; min-height: 0; min-width: 0; background: var(--viewport-bg); }
+#ho-pane-plan { border-right: 1px solid var(--border); }
+#house-overview.fullscreen-3d #ho-pane-plan, #house-overview.fullscreen-3d .ho-report { display: none !important; }
+#house-overview.fullscreen-2d #ho-pane-3d { display: none; }
+@media (max-width: 1250px) {
+  :root { --panel-w: 300px; --nav-w: 190px; }
+  .ho-views, .ed-views { flex-direction: column; }
+  #ho-pane-plan, .ho-report, #left-column, #floor-left-column { border-right: none; border-bottom: 1px solid var(--border); }
+}
+
+.statusbar {
+  flex: none; height: 24px; display: flex; align-items: center; gap: 16px; padding: 0 12px;
+  background: var(--van-emous-blue); border-top: 1px solid var(--border); font-size: 11.5px; color: var(--text-muted);
+}
+.sb-hint { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+.statusbar .io-status { white-space: nowrap; }
+
+/* Werkbalk boven de viewports */
+.ed-toolbar {
+  flex: none; display: flex; flex-wrap: wrap; align-items: center; gap: 4px; min-height: 40px; padding: 4px 8px;
+  background: var(--surface); border-bottom: 1px solid var(--border); position: relative; z-index: 20; container-type: inline-size;
+}
+.tb-group { display: flex; align-items: center; gap: 2px; }
+.tb-spacer { flex: 1; }
+.tb-sep { width: 1px; height: 22px; background: var(--border-soft); margin: 0 6px; }
+.tb-btn {
+  display: inline-flex; align-items: center; gap: 6px; height: 30px; padding: 0 9px; border: 1px solid transparent; border-radius: 5px;
+  background: none; font: inherit; font-size: 12.5px; color: var(--text); cursor: pointer; white-space: nowrap; position: relative;
+}
+.tb-btn .bi { font-size: 15px; color: var(--text-muted); }
+.tb-btn .tb-caret { font-size: 10px; }
+.tb-btn:hover { background: var(--primary-soft); color: var(--primary); }
+.tb-btn:hover .bi, .tb-btn.active .bi, .tb-btn.open .bi { color: var(--primary); }
+.tb-btn.active, .tb-btn.open { background: var(--primary-soft); border-color: var(--primary); color: var(--primary); }
+.tb-btn.flag::after { content: ''; position: absolute; top: 4px; right: 4px; width: 6px; height: 6px; border-radius: 50%; background: var(--primary); }
+.tb-title { font-size: 12.5px; font-weight: 600; padding: 0 6px; white-space: nowrap; }
+.tb-seg { display: inline-flex; border: 1px solid var(--border); border-radius: 5px; overflow: hidden; }
+.tb-seg .tb-btn { height: 28px; padding: 0 8px; border: none; border-radius: 0; }
+.tb-seg .tb-btn + .tb-btn { border-left: 1px solid var(--border-soft); }
+.tb-seg .tb-btn.active { background: var(--primary); color: #fff; }
+.tb-seg .tb-btn.active .bi { color: #fff; }
+.tb-options:empty { display: none; }
+.tb-opt { display: inline-flex; align-items: center; gap: 6px; margin-left: 4px; padding-left: 10px; border-left: 1px solid var(--border-soft); font-size: 12px; color: var(--text-muted); }
+.tb-opt select { height: 28px; max-width: 220px; padding: 0 6px; border: 1px solid var(--border); border-radius: 4px; background: var(--surface); font: inherit; font-size: 12.5px; color: var(--text); }
+.tb-range { display: none; align-items: center; gap: 6px; margin-left: 2px; font-size: 11.5px; color: var(--text-muted); font-variant-numeric: tabular-nums; }
+.tb-section.on .tb-range { display: inline-flex; }
+.tb-range input { width: 110px; accent-color: var(--primary); }
+#ho-section-val { min-width: 54px; }
+/* Smalle werkbalk: eerst de weergaveknoppen zonder tekst, daarna ook het gereedschap (titel blijft als tooltip). */
+@container (max-width: 1240px) { .tb-view .tb-btn > span, .tb-section .tb-btn > span, [data-tb="report"] > span { display: none; } }
+@container (max-width: 860px) { .tb-btn > span, .tb-opt > span { display: none; } }
+
+.tb-pop-wrap { position: relative; }
+.tb-pop {
+  display: none; position: absolute; top: calc(100% + 6px); right: 0; min-width: 170px; padding: 6px;
+  background: var(--surface); border: 1px solid var(--border); border-radius: 6px; box-shadow: 0 10px 28px rgba(33, 33, 33, .18); z-index: 50;
+}
+.tb-pop.open { display: block; }
+.pop-option {
+  display: flex; align-items: center; gap: 8px; width: 100%; padding: 6px 8px; border: none; border-radius: 4px; background: none;
+  font: inherit; font-size: 12.5px; color: var(--text); text-align: left; cursor: pointer;
+}
+.pop-option:hover { background: var(--primary-soft); color: var(--primary); }
+.pop-option.active { color: var(--primary); font-weight: 600; }
+.pop-layers { width: max-content; max-width: min(440px, 90vw); padding: 10px 12px; }
+.pop-row { display: flex; gap: 8px; margin-bottom: 6px; }
+.pop-phase { flex: 1; height: 28px; padding: 0 6px; border: 1px solid var(--border); border-radius: 4px; background: var(--surface); font: inherit; font-size: 12.5px; }
+.pop-groups { display: grid; grid-template-columns: repeat(2, minmax(170px, 1fr)); gap: 0 18px; }
+.pop-head { margin: 6px 0 2px; font-size: 10.5px; text-transform: uppercase; letter-spacing: .6px; color: var(--text-faint); }
+.pop-check { display: flex; align-items: center; gap: 7px; padding: 3px 2px; font-size: 12.5px; cursor: pointer; white-space: nowrap; }
+.pop-check:hover { color: var(--primary); }
+.pop-check input { margin: 0; accent-color: var(--primary); }
+.pop-check .bi { width: 14px; color: var(--text-muted); }
+
+/* Eigenschappenpaneel */
+.inspector { overflow-y: auto; background: var(--surface); }
+.ins-head { position: sticky; top: 0; z-index: 2; padding: 12px 14px 10px; background: var(--surface); border-bottom: 1px solid var(--border-soft); }
+.ins-crumbs { display: flex; align-items: center; gap: 4px; margin-bottom: 4px; font-size: 11.5px; color: var(--text-faint); }
+.ins-crumbs .bi { font-size: 9px; }
+.ins-crumb { padding: 0; border: none; background: none; font: inherit; color: var(--primary); cursor: pointer; }
+.ins-crumb:hover { text-decoration: underline; }
+.ins-head h2 { display: flex; align-items: center; gap: 8px; margin: 0; font-size: 15px; font-weight: 600; color: var(--text); }
+.ins-head h2 .bi { color: var(--primary); }
+.ins-sub { margin-top: 2px; font-size: 11.5px; color: var(--text-muted); }
+.ins-top { padding: 8px 14px 10px; border-bottom: 1px solid var(--border-soft); }
+.ins-summary { display: grid; grid-template-columns: 1fr 1fr; gap: 0 14px; }
+.ins-summary .ins-wide { grid-column: 1 / -1; }
+.ins-kv { display: flex; justify-content: space-between; gap: 10px; padding: 3px 0; border-bottom: 1px dashed var(--border-soft); font-size: 12px; color: var(--text-muted); }
+.ins-kv b { color: var(--text); font-weight: 600; font-variant-numeric: tabular-nums; text-align: right; }
+.ins-kv small { margin-left: 2px; font-weight: normal; color: var(--text-faint); }
+.ins-section { border-bottom: 1px solid var(--border-soft); }
+.ins-section-head {
+  display: flex; align-items: center; gap: 8px; width: 100%; padding: 10px 14px; border: none; background: none;
+  font: inherit; font-size: 13px; font-weight: 600; color: var(--text); text-align: left; cursor: pointer;
+}
+.ins-section-head:hover { background: var(--van-emous-ultra-light); color: var(--primary); }
+.ins-section-head > .bi:first-child { width: 16px; color: var(--primary); }
+.ins-section-head .bi-chevron-down { margin-left: auto; font-size: 11px; color: var(--text-faint); transition: transform .15s; }
+.ins-section.open .ins-section-head .bi-chevron-down { transform: rotate(180deg); }
+.ins-collapsible:not(.open) .ins-section-body { display: none; }
+.ins-section-body { padding: 2px 14px 12px; }
+.ins-group + .ins-group { margin-top: 8px; }
+.ins-group h3 { margin: 8px 0 4px; font-size: 10.5px; font-weight: 600; text-transform: uppercase; letter-spacing: .6px; color: var(--text-faint); }
+.ins-group-body { display: flex; flex-direction: column; gap: 2px; }
+.ins-btn {
+  display: inline-flex; align-items: center; gap: 7px; align-self: flex-start; margin: 3px 0; padding: 5px 11px;
+  border: 1px solid var(--border); border-radius: 4px; background: var(--surface); font: inherit; font-size: 12.5px; color: var(--text); cursor: pointer;
+}
+.ins-btn .bi { color: var(--primary); }
+.ins-btn:hover:not(:disabled) { border-color: var(--primary); color: var(--primary); }
+.ins-btn.active { background: var(--primary-soft); border-color: var(--primary); color: var(--primary); }
+.ins-btn:disabled { opacity: .5; cursor: default; }
+.ins-btn.ins-danger { color: var(--danger); border-color: #e3b4b0; }
+.ins-btn.ins-danger .bi { color: var(--danger); }
+.ins-btn.ins-danger:hover { background: var(--danger-soft); border-color: var(--danger); color: var(--danger); }
+.ins-group-body > .ins-btn + .ins-btn { margin-top: 0; }
+.ins-note { margin: 4px 0; font-size: 11.5px; line-height: 1.45; color: var(--text-muted); }
+.ins-note.ins-warn { padding: 6px 8px; border-radius: 4px; background: var(--danger-soft); color: var(--danger); }
+/* Staal of foto in de eenheid-kolom, zodat het veld uitlijnt met de rest. */
+.ins-pair { position: relative; }
+.ins-pair > .ins-thumb, .ins-pair > .ins-swatch { position: absolute; right: 0; top: 50%; transform: translateY(-50%); }
+.ins-thumb { width: 26px; height: 26px; display: block; border: 1px solid var(--border); border-radius: 3px; object-fit: cover; }
+.ins-swatch { width: 26px; height: 22px; border: 1px solid var(--border); border-radius: 3px; }
+.ins-check { display: flex; align-items: center; gap: 7px; padding: 3px 0; font-size: 12.5px; cursor: pointer; }
+.ins-check input { margin: 0; accent-color: var(--primary); }
+.ins-cols { display: flex; flex-direction: column; }
+.ins-cols:empty { display: none; }
+.inspector .ui-field { min-height: 30px; }
+.inspector .ui-control input[type=number] { width: 96px; }
+.inspector .ui-control select, .inspector .ui-control input[type=text] { width: 150px; }
+.inspector .ui-control input[type=color] { width: 46px; height: 24px; padding: 0; border: 1px solid var(--border); border-radius: 3px; background: none; }
+.inspector .ui-switch { margin-right: 0; }
+.inspector .ui-range input[type=number] { width: 80px; }
+
+/* Dialogen */
+.dlg-overlay { position: fixed; inset: 0; z-index: 500; display: none; align-items: center; justify-content: center; background: rgba(33, 33, 33, .45); }
+.dlg-overlay.open { display: flex; }
+.dlg {
+  display: flex; flex-direction: column; width: 780px; max-width: 94%; max-height: 88vh;
+  background: var(--surface); border: 1px solid var(--border); border-radius: 8px; box-shadow: 0 12px 30px rgba(33, 33, 33, .2);
+}
+.dlg-head { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px 8px; }
+.dlg-head h2 { margin: 0; font-size: 15px; color: var(--primary); }
+.dlg-x { border: none; background: none; font-size: 20px; line-height: 1; color: var(--text-faint); cursor: pointer; }
+.dlg-x:hover { color: var(--danger); }
+.keys-body { overflow-y: auto; padding: 4px 20px 18px; columns: 2 300px; column-gap: 28px; }
+.keys-body section { break-inside: avoid; margin-bottom: 14px; }
+.keys-body h3 { margin: 0 0 6px; font-size: 11px; text-transform: uppercase; letter-spacing: .6px; color: var(--text-faint); }
+.keys-row { display: flex; justify-content: space-between; gap: 12px; padding: 3px 0; border-bottom: 1px dashed var(--border-soft); font-size: 12.5px; }
+.keys-row span:last-child { color: var(--text-muted); text-align: right; }
+kbd {
+  display: inline-block; min-width: 20px; padding: 1px 6px; border: 1px solid var(--border); border-bottom-width: 2px; border-radius: 4px;
+  background: var(--van-emous-ultra-light); font: 11.5px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; color: var(--text); text-align: center;
+}
+#new-modal { max-width: 92vw; }
+.new-options { flex-wrap: wrap; max-width: 640px; }
+.keys-mouse { font-weight: 600; color: var(--text); }
+#house-nav { overflow-x: hidden; }
+.hn-item { min-width: 0; }
+.hn-label { display: block; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+.hn-meta { flex: none; max-width: 45%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+/* Structuur: inklapbare groepen */
+.hn-item { align-items: center; }
+.hn-item .hn-label { flex: 1; }
+.hn-group:not(.open) .hn-children { display: none; }
+.hn-head { cursor: pointer; }
+.hn-head:hover { color: var(--primary); background: rgba(255, 255, 255, .6); }
+.hn-toggle {
+  flex: none; width: 18px; height: 18px; margin: 0 2px 0 -4px; padding: 0; display: inline-flex; align-items: center; justify-content: center;
+  border: none; border-radius: 3px; background: none; color: var(--text-faint); cursor: pointer;
+}
+.hn-toggle .bi { margin: 0 !important; font-size: 10px; color: inherit !important; transition: transform .15s; }
+.hn-group.open > .hn-item .hn-toggle .bi { transform: rotate(90deg); }
+.hn-toggle:hover { background: rgba(255, 255, 255, .8); color: var(--primary); }
+.hn-sub { padding-left: 30px; }
+
+/* Masonry: kaarten in de kortste kolom (leesvolgorde blijft links → rechts) */
+.ui-masonry { display: flex; align-items: flex-start; gap: 12px; }
+.ui-masonry-col { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 12px; }
+
+/* ===== Gelijktrekken oude onderdelen met de nieuwe stijl ===== */
+.io-btn { display: inline-flex; align-items: center; gap: 6px; padding: 5px 11px; font-family: inherit; font-size: 12px; }
+.ui-btn.ui-btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); color: #fff; }
+
+/* Viewportlabels: herkenbaar maar niet dominant */
+.pane-label {
+  top: 10px; left: 10px; padding: 3px 8px; border: none; border-radius: 4px; background: rgba(0, 0, 0, .55);
+  font-size: 11px; font-weight: 600; letter-spacing: .8px; color: #c9ced6;
+}
+.ho-warn { top: 40px; left: 10px; right: 10px; }
+
+/* Eigenschappenpaneel: getal naast schuif lijnt uit met gewone getalvelden; bredere keuzelijsten */
+.inspector .ui-range { gap: 0; }
+.inspector .ui-range input[type=range] { margin-right: 10px; }
+.inspector .ui-range input[type=number], .inspector .ui-control input[type=number] { width: 96px; }
+.inspector .ui-control select, .inspector .ui-control input[type=text] { width: 170px; }
+.inspector .ui-field label { flex: 1; min-width: 0; }
+
+/* Rapport- en resultaatkaarten: lange waarde schuift onder het label i.p.v. het label te pletten */
+.ui-spec-row { flex-wrap: wrap; }
+.ui-spec-val { margin-left: auto; }
+
+/* Wand-/vloerpaneel: koppen, velden en knoppen zoals het eigenschappenpaneel */
+.ed-panel h1 { margin: 12px 0 4px; font-size: 10.5px; font-weight: 600; text-transform: uppercase; letter-spacing: .6px; color: var(--text-faint); }
+.ed-panel h1 .bi { display: none; }
+.ed-panel .tab-content > :first-child h1:first-child, .ed-panel .controls-grid > div:first-child > h1:first-child { margin-top: 2px; }
+.ed-panel .spec-section h1 { margin: 0 0 6px; font-size: 12px; color: var(--primary); letter-spacing: .6px; }
+.ed-panel .spec-section h1 .bi { display: inline; }
+.ed-panel .divider { border: none; margin: 4px 0; }
+.ed-panel .control-group label { flex: 1; min-width: 0; line-height: 1.3; }
+.ed-panel .control-group > div { display: flex; align-items: center; flex: none; white-space: nowrap; }
+.ed-panel .control-group .unit { display: inline-block; width: 22px; margin-left: 3px; }
+.ed-panel .control-group > div > select:last-child, .ed-panel .control-group > div > input:last-child { margin-right: 25px; }
+.ed-panel .control-group .ui-switch { margin-right: 25px; }
+.ed-panel .control-group input[type=number], .ed-panel .control-group input[type=text], .ed-panel .control-group select { width: 110px; }
+.ed-panel .material-info { font-size: 11.5px; }
+
+.material-toggle-group { flex-wrap: wrap; }
+.material-toggle-btn {
+  flex: 1 1 auto; min-width: 0; padding: 6px 10px; border-radius: 4px; text-transform: none; letter-spacing: 0;
+  font-family: inherit; font-size: 12.5px; font-weight: 500;
+}
+.material-toggle-btn:disabled { opacity: .55; cursor: not-allowed; }
+
+.add-opening-btn {
+  width: 100%; justify-content: center; padding: 7px 10px; background: var(--surface); border: 1px dashed var(--border);
+  color: var(--text); font-weight: 500; font-family: inherit;
+}
+.add-opening-btn .bi { color: var(--primary); }
+.add-opening-btn:hover { background: var(--primary-soft); border-color: var(--primary); color: var(--primary); }
+.opening-card-title { text-transform: none; letter-spacing: 0; font-size: 13px; color: var(--text); }
+.opening-remove-btn { border-color: transparent; color: var(--text-faint); }
+.opening-remove-btn:hover { border-color: var(--danger); color: var(--danger); }
+#cost-settings-modal .cs-row input, #cost-settings-modal .cs-row select {
+  padding: 4px 6px; border: 1px solid var(--border); border-radius: 4px; background: var(--surface); font: inherit; font-size: 12.5px; color: var(--text);
+}
+#cost-settings-modal .cs-row input:focus, #cost-settings-modal .cs-row select:focus { border-color: var(--primary); outline: none; box-shadow: 0 0 0 2px var(--primary-soft); }
+#cost-settings-modal .cs-row input:disabled, #cost-settings-modal .cs-row input[readonly] { background: var(--border-soft); }

css/light.css

@@ -0,0 +1,231 @@
+/*!
+ * Tectum
+ * Copyright © 2026 Machiel Heinen.
+ * Alle rechten voorbehouden. Gebruik uitsluitend met schriftelijke toestemming.
+ * Zie LICENTIE.md.
+ */
+
+/* Light-versie (modelpagina's). Alles onder .tectum-light, zodat de stijl van de site eromheen (Bootstrap) er niet
+   mee botst; koppen, labels en knoppen krijgen daarom expliciet marge, gewicht en regelhoogte. De indeling volgt de
+   breedte van de tool zelf (container queries), niet die van het scherm: in de site staat hij in een col-12. */
+.tectum-light {
+  --tl-primary: #b95913;
+  --tl-primary-hover: #9c4a0f;
+  --tl-primary-soft: rgba(185, 89, 19, 0.10);
+  --tl-text: #212121;
+  --tl-muted: #5b6673;
+  --tl-faint: #8a94a0;
+  --tl-surface: #ffffff;
+  --tl-bg: #f9faf5;
+  --tl-border: #c5ced9;
+  --tl-border-soft: #e2e7ee;
+  --tl-radius: 10px;
+  container: tl / inline-size;
+  display: block;
+  width: 100%;
+  color: var(--tl-text);
+  font-size: 14px;
+  line-height: 1.4;
+  text-align: left;
+}
+.tectum-light *, .tectum-light *::before, .tectum-light *::after { box-sizing: border-box; }
+.tectum-light button { font: inherit; color: inherit; line-height: 1.2; margin: 0; text-transform: none; }
+.tectum-light h2, .tectum-light h3 { margin: 0; font-weight: 700; line-height: 1.2; }
+.tectum-light label { display: block; margin: 0; }
+.tectum-light small { font-size: 11px; color: var(--tl-faint); font-weight: 400; }
+
+.tectum-light .tl-wrap {
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) 340px;
+  height: clamp(560px, 80vh, 800px);
+  border: 1px solid var(--tl-border-soft);
+  border-radius: var(--tl-radius);
+  overflow: hidden;
+  background: var(--tl-surface);
+}
+
+/* 3D / plattegrond */
+.tectum-light .tl-stage { position: relative; min-width: 0; min-height: 0; background: #dfe6ec; }
+.tectum-light .tl-3d { position: absolute; inset: 0; }
+.tectum-light .tl-3d canvas { display: block; width: 100%; height: 100%; touch-action: none; }
+.tectum-light .tl-plan { position: absolute; inset: 0; width: 100%; height: 100%; display: none; background: #fff; }
+.tectum-light.view-plan .tl-plan { display: block; }
+.tectum-light.view-plan .tl-3d { visibility: hidden; }
+.tectum-light .tl-viewbar, .tectum-light .tl-cutbar, .tectum-light .tl-busy, .tectum-light .tl-hint {
+  position: absolute; background: rgba(255, 255, 255, 0.94); border-radius: 8px; box-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
+}
+.tectum-light .tl-viewbar { top: 10px; left: 10px; display: flex; gap: 2px; padding: 3px; }
+.tectum-light .tl-viewbar button {
+  display: inline-flex; align-items: center; gap: 6px; border: 0; background: none; padding: 6px 10px;
+  border-radius: 6px; cursor: pointer; color: var(--tl-muted); white-space: nowrap;
+}
+.tectum-light .tl-viewbar button:hover { color: var(--tl-text); }
+.tectum-light .tl-viewbar button.on { background: var(--tl-primary-soft); color: var(--tl-primary); font-weight: 600; }
+.tectum-light .tl-cutbar { top: 52px; left: 10px; display: none; align-items: center; gap: 10px; padding: 6px 12px; font-size: 13px; }
+.tectum-light.view-cut .tl-cutbar { display: flex; }
+.tectum-light .tl-cutbar input { width: 150px; accent-color: var(--tl-primary); }
+.tectum-light .tl-cutbar output { min-width: 4.2em; font-weight: 600; font-variant-numeric: tabular-nums; }
+/* Rechtsboven: AR (telefoon/tablet) of schermvullend (desktop). */
+.tectum-light .tl-xbtn {
+  position: absolute; top: 10px; right: 10px; width: 35px; height: 35px; padding: 0; border: 0; border-radius: 8px;
+  display: inline-flex; align-items: center; justify-content: center; font-size: 18px; cursor: pointer;
+  background: rgba(255, 255, 255, 0.94); box-shadow: 0 1px 4px rgba(0, 0, 0, 0.15); color: var(--tl-text);
+}
+.tectum-light .tl-xbtn:hover { color: var(--tl-primary); }
+.tectum-light .tl-xbtn[hidden] { display: none; }
+.tectum-light.has-xbtn .tl-busy { right: 53px; }
+.tectum-light .tl-hint { left: 10px; bottom: 10px; font-size: 12px; color: var(--tl-muted); padding: 3px 8px; box-shadow: none; pointer-events: none; }
+.tectum-light .tl-busy { top: 10px; right: 10px; display: none; align-items: center; gap: 8px; padding: 6px 12px; }
+.tectum-light.is-busy .tl-busy { display: inline-flex; }
+.tectum-light.is-busy .tl-panel { pointer-events: none; }
+.tectum-light .tl-spinner {
+  width: 14px; height: 14px; border: 2px solid var(--tl-border); border-top-color: var(--tl-primary);
+  border-radius: 50%; animation: tl-spin 0.8s linear infinite;
+}
+@keyframes tl-spin { to { transform: rotate(360deg); } }
+.tectum-light .tl-toast {
+  position: absolute; left: 50%; bottom: 42px; transform: translate(-50%, 8px); width: max-content; max-width: calc(100% - 24px);
+  background: #2b2f33; color: #fff; padding: 9px 14px; border-radius: 8px; font-size: 13px;
+  opacity: 0; transition: opacity 0.2s, transform 0.2s; pointer-events: none;
+}
+.tectum-light .tl-toast.on { opacity: 1; transform: translate(-50%, 0); }
+
+/* Paneel */
+.tectum-light .tl-panel { display: flex; flex-direction: column; min-height: 0; border-left: 1px solid var(--tl-border-soft); background: var(--tl-surface); }
+.tectum-light .tl-head { padding: 14px 16px 10px; }
+.tectum-light .tl-title { font-size: 18px; }
+.tectum-light .tl-sub { margin-top: 3px; color: var(--tl-muted); font-size: 12px; }
+.tectum-light .tl-sections { flex: 1; min-height: 0; overflow-y: auto; border-top: 1px solid var(--tl-border-soft); }
+
+/* Accordeon */
+.tectum-light .tl-sec { border-bottom: 1px solid var(--tl-border-soft); }
+.tectum-light .tl-sec-head {
+  display: flex; align-items: center; gap: 9px; width: 100%; padding: 11px 16px; border: 0; background: none; cursor: pointer; text-align: left;
+}
+.tectum-light .tl-sec-head:hover { background: var(--tl-bg); }
+.tectum-light .tl-sec-head > .bi:first-child { color: var(--tl-primary); }
+.tectum-light .tl-sec-title { font-weight: 600; }
+.tectum-light .tl-sec-sum { flex: 1; min-width: 0; text-align: right; font-size: 12px; color: var(--tl-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+.tectum-light .tl-chev { font-size: 12px; color: var(--tl-faint); transition: transform 0.15s; }
+.tectum-light .tl-sec.open .tl-chev { transform: rotate(180deg); }
+.tectum-light .tl-sec.open .tl-sec-sum { visibility: hidden; }
+.tectum-light .tl-sec-body { padding: 0 16px 12px; }
+
+/* Velden */
+.tectum-light .tl-field { margin: 8px 0; }
+.tectum-light .tl-label { display: flex; justify-content: space-between; gap: 8px; font-size: 12px; color: var(--tl-muted); margin-bottom: 4px; }
+.tectum-light .tl-val { color: var(--tl-text); font-weight: 600; text-align: right; }
+.tectum-light .tl-note { font-size: 11px; color: var(--tl-faint); }
+.tectum-light .tl-seg { display: flex; flex-wrap: wrap; gap: 4px; }
+.tectum-light .tl-seg button {
+  flex: 1 1 auto; border: 1px solid var(--tl-border); background: var(--tl-surface); border-radius: 7px;
+  padding: 6px 8px; cursor: pointer; white-space: nowrap; font-size: 13px;
+}
+.tectum-light .tl-seg button:hover:not(:disabled) { border-color: var(--tl-primary); }
+.tectum-light .tl-seg button.on { border-color: var(--tl-primary); background: var(--tl-primary-soft); color: var(--tl-primary); font-weight: 600; }
+.tectum-light .tl-units .tl-seg button { flex: 0 0 auto; min-width: 40px; }
+.tectum-light button:disabled { opacity: 0.4; cursor: not-allowed; }
+.tectum-light button:focus-visible, .tectum-light input:focus-visible, .tectum-light .tl-map-u:focus-visible { outline: 2px solid var(--tl-primary); outline-offset: 2px; }
+
+.tectum-light .tl-swatches { display: flex; flex-wrap: wrap; gap: 6px; }
+.tectum-light .tl-sw {
+  width: 30px; height: 30px; padding: 0; border-radius: 50%; border: 1px solid rgba(0, 0, 0, 0.18);
+  background: var(--sw); cursor: pointer; overflow: hidden; box-shadow: 0 0 0 2px var(--tl-surface);
+}
+.tectum-light .tl-sw img { width: 100%; height: 100%; object-fit: cover; display: block; }
+.tectum-light .tl-sw.on { box-shadow: 0 0 0 2px var(--tl-surface), 0 0 0 4px var(--tl-primary); }
+
+.tectum-light .tl-slider { margin: 8px 0; }
+.tectum-light .tl-sl-head { display: flex; justify-content: space-between; gap: 8px; font-size: 13px; }
+.tectum-light .tl-sl-head output { font-weight: 600; font-variant-numeric: tabular-nums; white-space: nowrap; }
+.tectum-light .tl-slider input { display: block; width: 100%; margin: 4px 0 0; accent-color: var(--tl-primary); }
+
+.tectum-light .tl-mapbox { display: flex; align-items: center; gap: 10px; margin: 6px 0 2px; }
+.tectum-light .tl-map { display: block; flex: 1; min-width: 0; max-height: 96px; }
+.tectum-light .tl-map-u { cursor: pointer; outline: none; }
+.tectum-light .tl-map-u rect { fill: var(--tl-bg); stroke: var(--tl-border); stroke-width: 40; }
+.tectum-light .tl-map-u text { fill: var(--tl-muted); font-weight: 600; pointer-events: none; }
+.tectum-light .tl-map-u:hover rect { stroke: var(--tl-primary); }
+.tectum-light .tl-map-u.on rect { fill: var(--tl-primary-soft); stroke: var(--tl-primary); stroke-width: 60; }
+.tectum-light .tl-map-u.on text { fill: var(--tl-primary); }
+
+/* Kerncijfers en prijs */
+.tectum-light .tl-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 2px 14px; padding: 10px 16px; font-size: 12px; border-top: 1px solid var(--tl-border-soft); background: var(--tl-bg); }
+.tectum-light .tl-kv { display: flex; justify-content: space-between; gap: 6px; }
+.tectum-light .tl-kv span { color: var(--tl-muted); }
+.tectum-light .tl-kv b { font-weight: 600; font-variant-numeric: tabular-nums; white-space: nowrap; }
+.tectum-light .tl-buy { display: flex; align-items: center; gap: 8px; padding: 10px 16px 12px; background: var(--tl-bg); }
+.tectum-light .tl-price { flex: 1; min-width: 0; display: flex; flex-direction: column; }
+.tectum-light .tl-price-val { font-size: 21px; font-weight: 700; line-height: 1.1; font-variant-numeric: tabular-nums; }
+.tectum-light .tl-price-note { font-size: 11px; color: var(--tl-muted); }
+.tectum-light .tl-btn {
+  display: inline-flex; align-items: center; justify-content: center; gap: 7px; height: 40px; padding: 0 14px;
+  border: 1px solid var(--tl-border); border-radius: 8px; background: var(--tl-surface); cursor: pointer;
+}
+.tectum-light .tl-btn:hover { border-color: var(--tl-primary); }
+.tectum-light .tl-btn.tl-icon { width: 40px; padding: 0; }
+.tectum-light .tl-btn.tl-primary { background: var(--tl-primary); border-color: var(--tl-primary); color: #fff; font-weight: 600; }
+.tectum-light .tl-btn.tl-primary:hover { background: var(--tl-primary-hover); }
+
+/* Middel (bijv. tablet, of een smallere kolom): paneel iets smaller. */
+@container tl (max-width: 980px) {
+  .tectum-light .tl-wrap { grid-template-columns: minmax(0, 1fr) 300px; }
+  .tectum-light .tl-viewbar button { padding: 6px 8px; }
+}
+
+/* Smal (telefoon): 3D boven, keuzes eronder; prijs en PDF blijven onderin beeld zolang de keuzes in beeld zijn. */
+@container tl (max-width: 720px) {
+  .tectum-light .tl-wrap { grid-template-columns: 1fr; height: auto; overflow: visible; }
+  .tectum-light .tl-stage { height: min(62vh, 115cqw); border-radius: var(--tl-radius) var(--tl-radius) 0 0; overflow: hidden; }
+  .tectum-light .tl-panel { border-left: 0; border-top: 1px solid var(--tl-border-soft); border-radius: 0 0 var(--tl-radius) var(--tl-radius); }
+  .tectum-light .tl-sections { overflow: visible; }
+  .tectum-light .tl-buy { position: sticky; bottom: 0; z-index: 2; border-top: 1px solid var(--tl-border-soft); box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.06); border-radius: 0 0 var(--tl-radius) var(--tl-radius); }
+  .tectum-light .tl-hint { display: none; }
+  .tectum-light .tl-viewbar { left: 8px; right: 8px; top: 8px; }
+  .tectum-light .tl-viewbar button { flex: 1; justify-content: center; }
+  .tectum-light.has-xbtn .tl-viewbar { right: 51px; }
+  .tectum-light .tl-xbtn { top: 8px; right: 8px; width: 37px; height: 37px; }
+  .tectum-light .tl-cutbar { left: 8px; right: 8px; top: 50px; }
+  .tectum-light .tl-cutbar input { flex: 1; width: auto; }
+  .tectum-light .tl-busy { top: auto; bottom: 10px; right: 10px; }
+  /* Grotere tikvlakken */
+  .tectum-light .tl-seg button { padding: 9px 8px; }
+  .tectum-light .tl-sw { width: 36px; height: 36px; }
+  .tectum-light .tl-sec-head { padding: 13px 16px; }
+  .tectum-light .tl-slider input { height: 28px; }
+}
+@container tl (max-width: 380px) {
+  .tectum-light .tl-viewbar button .bi { display: none; }
+  .tectum-light .tl-facts { grid-template-columns: 1fr; }
+}
+
+/* AR-weergave (model-viewer) over de hele pagina. Staat buiten .tectum-light: die is een container en zou het kader van
+   position: fixed worden. Kleur van de knop = --tl-primary. */
+html.tl-noscroll, html.tl-noscroll body { overflow: hidden; }
+.tl-arview {
+  position: fixed; inset: 0; z-index: 2147483000; display: none; background: #dfe6ec; color: #212121;
+  font: 14px/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
+}
+.tl-arview.on { display: block; }
+.tl-arview *, .tl-arview *::before, .tl-arview *::after { box-sizing: border-box; }
+.tl-arview model-viewer { display: block; width: 100%; height: 100%; background: #dfe6ec; --poster-color: transparent; }
+.tl-arview .tl-ar-top {
+  position: absolute; top: 0; left: 0; right: 0; display: flex; align-items: center; justify-content: space-between; gap: 12px;
+  padding: max(10px, env(safe-area-inset-top)) 12px 10px 16px; pointer-events: none;
+}
+.tl-arview .tl-ar-title { font-size: 17px; font-weight: 700; }
+.tl-arview .tl-ar-close {
+  pointer-events: auto; width: 44px; height: 44px; margin: 0; padding: 0; border: 0; border-radius: 50%; cursor: pointer;
+  display: inline-flex; align-items: center; justify-content: center; font-size: 18px; color: inherit;
+  background: rgba(255, 255, 255, 0.94); box-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
+}
+.tl-arview .tl-ar-go {
+  position: absolute; left: 50%; bottom: calc(44px + env(safe-area-inset-bottom)); transform: translateX(-50%);
+  display: inline-flex; align-items: center; gap: 9px; height: 50px; margin: 0; padding: 0 24px; border: 0; border-radius: 25px;
+  background: #b95913; color: #fff; font-family: inherit; font-size: 16px; font-weight: 600; line-height: 1; white-space: nowrap; cursor: pointer; box-shadow: 0 2px 10px rgba(0, 0, 0, 0.25);
+}
+.tl-arview .tl-ar-go .bi { font-size: 22px; }
+.tl-arview .tl-ar-note {
+  position: absolute; left: 16px; right: 16px; bottom: calc(14px + env(safe-area-inset-bottom));
+  text-align: center; font-size: 12px; color: #5b6673; pointer-events: none;
+}

index.html

@@ -22,15 +22,23 @@
     <div class="splash-version"><span class="splash-name">Tectum</span> &mdash; Versie <span class="app-version-number">0.0.0</span></div>
   </div>
 
-  <header id="ribbon">
-    <div class="rb-top">
-      <div class="rb-brand"><span class="splash-name">Tectum</span></div>
-      <div class="rb-tabs" role="tablist"></div>
-      <div class="rb-right"><span class="app-version-slot"></span></div>
+  <header id="topbar">
+    <div class="tb-brand"><span class="splash-name">Tectum</span></div>
+    <nav id="menubar" aria-label="Menu"></nav>
+    <div id="doc-tabs" role="tablist" aria-label="Geopende ontwerpen"></div>
+    <div class="top-right">
+      <button type="button" id="top-save" class="top-save" title="Opslaan als JSON + PDF (Ctrl+S)"><i class="bi bi-save"></i><span>Opslaan</span></button>
+      <span class="app-version-slot"></span>
     </div>
-    <div class="rb-body"></div>
   </header>
 
+  <div id="keys-overlay" class="dlg-overlay">
+    <div class="dlg" role="dialog" aria-labelledby="keys-title">
+      <div class="dlg-head"><h2 id="keys-title">Sneltoetsen en bediening</h2><button type="button" class="dlg-x" data-close>&times;</button></div>
+      <div class="keys-body" id="keys-body"></div>
+    </div>
+  </div>
+
   <div id="about-overlay">
     <div id="about-modal">
       <img class="about-logo" src="assets/logo.svg" alt="Van Emous Mantelzorgwoningen">
@@ -42,14 +50,14 @@
       <div class="license-box" id="about-license"></div>
       <div class="about-footer">
         <span>&copy; 2026 Machiel Heinen &middot; ontwikkeld in opdracht van Van Emous Mantelzorgwoningen</span>
-        <button id="about-close" class="about-close">Sluiten</button>
+        <button id="about-close" class="about-close" data-esc>Sluiten</button>
       </div>
     </div>
   </div>
 
   <div id="new-overlay">
     <div id="new-modal">
-      <h2>Nieuw</h2>
+      <h2>Nieuw ontwerp</h2>
       <div class="new-options">
         <button class="new-option" data-kind="woning" data-template="single">
           <svg viewBox="0 0 48 48"><rect x="8" y="14" width="32" height="20" fill="none" stroke="currentColor" stroke-width="2"/><line x1="8" y1="24" x2="40" y2="24" stroke="currentColor" stroke-width="1" stroke-dasharray="2 2"/></svg>
@@ -67,27 +75,22 @@
           <svg viewBox="0 0 48 48"><rect x="6" y="6" width="36" height="36" fill="none" stroke="currentColor" stroke-width="2"/><line x1="6" y1="18" x2="42" y2="18" stroke="currentColor" stroke-width="2"/><line x1="6" y1="30" x2="42" y2="30" stroke="currentColor" stroke-width="2"/><line x1="18" y1="6" x2="18" y2="42" stroke="currentColor" stroke-width="2"/><line x1="30" y1="6" x2="30" y2="42" stroke="currentColor" stroke-width="2"/></svg>
           <span>Los: vloer</span>
         </button>
-        <button class="new-option disabled" data-kind="dak" disabled title="Nog niet beschikbaar">
-          <svg viewBox="0 0 48 48"><path d="M4 30 L24 8 L44 30" fill="none" stroke="currentColor" stroke-width="2"/><line x1="10" y1="30" x2="38" y2="30" stroke="currentColor" stroke-width="2"/></svg>
-          <span>Dak</span>
-        </button>
       </div>
     </div>
   </div>
 
-  <div id="tab-bar"></div>
   <div id="workspace"></div>
 
   <script src="js/core/license.js"></script>
   <script src="js/core/logo-data.js"></script>
   <script src="js/core/geometry.js"></script>
-  <script src="js/core/build-stages.js"></script>
+  <script src="js/core/view-layers.js"></script>
   <script src="js/core/canvas-labels.js"></script>
   <script src="js/core/camera-memory.js"></script>
   <script src="js/core/walk-controls.js"></script>
-  <script src="js/core/view-filter.js"></script>
   <script src="js/core/ui-kit.js"></script>
-  <script src="js/core/ribbon.js"></script>
+  <script src="js/core/menubar.js"></script>
+  <script src="js/core/inspector.js"></script>
   <script src="js/core/skybox.js"></script>
   <script src="js/vendor/jspdf.umd.min.js"></script>
   <script src="js/core/pdf-sheet.js"></script>

js/app.js

@@ -4,7 +4,7 @@
  * Alle rechten voorbehouden. Gebruik uitsluitend met schriftelijke toestemming.
  * Zie LICENTIE.md.
  */
-const APP_VERSION = '0.7.0';
+const APP_VERSION = '0.7.6';
 // 0.0.X per kleine iteratie, 0.X.0 per mijlpaal, X.0.0 bij live-gang.
 
 let tabs = [];
@@ -28,72 +28,84 @@ function defaultNameFor(kind) {
 function setWorkspaceEmpty() {
   document.getElementById('workspace').innerHTML = `<div id="workspace-empty">
     <div>Geen ontwerp geopend.</div>
-    <div style="font-size:11px;">Bestand &rarr; Nieuw &rarr; kies een objecttype</div>
+    <div style="font-size:12px;">Bestand &rsaquo; Nieuw (Ctrl+N)</div>
   </div>`;
 }
 
-function updateEditMenuState() {
-  Ribbon.refresh();
+const editorHas = (fn) => !!(currentEditor && typeof currentEditor[fn] === 'function' && (!currentEditor.can || currentEditor.can(fn)));
+const editorCall = (fn, ...args) => { if (editorHas(fn)) return currentEditor[fn](...args); };
+const viewState = () => editorCall('viewState') || {};
+
+// Menu met de sneltoets per item; KEY_HELP hieronder is het overzicht (Help › Sneltoetsen). Editor-acties werken alleen als de editor ze kent.
+const MENUS = [
+  { label: 'Bestand', items: [
+    { label: 'Nieuw…', icon: 'file-earmark-plus', keys: 'Ctrl+N', run: openNewModal },
+    { label: 'Openen…', icon: 'folder2-open', keys: 'Ctrl+O', run: () => editorCall('triggerImport'), enabled: () => editorHas('triggerImport') },
+    { label: 'Opslaan (JSON + PDF)', icon: 'save', keys: 'Ctrl+S', run: () => editorCall('exportDesign'), enabled: () => editorHas('exportDesign') },
+    { sep: true }, { head: 'Exporteren' },
+    { label: 'CAD (DXF)', icon: 'vector-pen', run: () => editorCall('exportDxf'), enabled: () => editorHas('exportDxf') },
+    { label: 'BIM (IFC)', icon: 'boxes', run: () => editorCall('exportIfc'), enabled: () => editorHas('exportIfc') },
+    { label: 'Render (OBJ)', icon: 'badge-3d', run: () => editorCall('exportObj'), enabled: () => editorHas('exportObj') },
+    { sep: true },
+    { label: 'Projectgegevens…', icon: 'card-text', run: () => editorCall('openProjectProperties'), enabled: () => editorHas('openProjectProperties') },
+    { label: 'Kosten & tijden…', icon: 'calculator', run: () => CostSettings.open() },
+    { sep: true },
+    { label: 'Ontwerp sluiten', icon: 'x-lg', run: () => activeTabId !== null && closeTab(activeTabId), enabled: () => activeTabId !== null }
+  ] },
+  { label: 'Beeld', items: [
+    ...UI.VIEWS.map(v => ({ label: v.label, icon: v.icon, keys: v.key1, run: () => editorCall('setView', v.key),
+      enabled: () => editorHas('setView'), checked: () => viewState().view === v.key })),
+    { label: 'Rapport', icon: 'clipboard-data', keys: '4', run: () => editorCall('toggleReport'), enabled: () => editorHas('toggleReport'), checked: () => !!viewState().report },
+    { sep: true },
+    { label: 'Doorsnede', icon: 'scissors', keys: 'X', run: () => editorCall('toggleSection'), enabled: () => editorHas('toggleSection'), checked: () => !!viewState().section },
+    { label: 'Plattegrond passend', icon: 'aspect-ratio', keys: 'F', run: () => editorCall('fitView'), enabled: () => editorHas('fitView') },
+    { label: 'Lopen', icon: 'person-walking', keys: 'L', run: () => editorCall('toggleWalk'), enabled: () => editorHas('toggleWalk'), checked: () => !!viewState().walk },
+    { sep: true },
+    { label: 'Panelen verbergen', icon: 'layout-sidebar-inset', keys: 'Ctrl+\\', run: togglePanels, checked: () => document.body.classList.contains('panels-hidden') },
+    { label: 'Volledig scherm', icon: 'fullscreen', keys: 'F11', run: toggleBrowserFullscreen, checked: () => !!document.fullscreenElement }
+  ] },
+  { label: 'Help', items: [
+    { label: 'Sneltoetsen en bediening', icon: 'keyboard', keys: '?', run: openKeys },
+    { label: 'Over Tectum', icon: 'info-circle', run: () => document.getElementById('about-overlay').classList.add('open') }
+  ] }
+];
+
+const KEY_HELP = [
+  ['Bestand', [['Ctrl+N', 'Nieuw ontwerp'], ['Ctrl+O', 'Openen'], ['Ctrl+S', 'Opslaan (JSON + PDF)']]],
+  ['Gereedschap (woning)', [['V', 'Selecteren'], ['W', 'Binnenwand tekenen'], ['R', 'Ruimte vullen'], ['I', 'Inrichting plaatsen'],
+    ['Esc', 'Gereedschap stoppen, daarna selectie opheffen'], ['Del', 'Selectie verwijderen'], ['D / Shift+D', 'Inrichting draaien'], ['Dubbelklik', 'Onderdeel bewerken (wand, vloer)']]],
+  ['Beeld', [['1 / 2 / 3', '2D + 3D, alleen 2D, alleen 3D'], ['4', 'Rapport aan/uit'], ['X', 'Doorsnede aan/uit'], ['F', 'Plattegrond passend'],
+    ['L', 'Lopen aan/uit'], ['Ctrl+\\', 'Panelen verbergen'], ['F11', 'Volledig scherm']]],
+  ['Wand-editor', [['Shift+H', 'Horizontaal spiegelen']]],
+  ['3D rondkijken', [['Slepen', 'Draaien'], ['Rechts of middelste knop slepen', 'Zijwaarts verschuiven'], ['Shift/Ctrl + slepen', 'Zijwaarts verschuiven'],
+    ['Pijltjestoetsen (muis boven de 3D)', 'Verschuiven (Shift = grotere stap)'], ['Scrollwiel', 'Zoomen']], true],
+  ['Plattegrond', [['Scrollwiel', 'Zoomen'], ['Slepen op lege plek', 'Verschuiven'], ['Middelste muisknop', 'Verschuiven']], true],
+  ['Lopen', [['W / S', 'Vooruit / achteruit (ook pijl op/neer)'], ['A / D', 'Opzij'], ['← / →', 'Draaien'], ['Shift', 'Rennen'], ['E', 'Deur of schakelaar bedienen'], ['L / Esc', 'Stoppen met lopen']]],
+  ['Rondkijken tijdens lopen', [['Slepen', 'Rondkijken']], true]
+];
+
+function openKeys() {
+  // Muisacties als tekst, toetsen als <kbd>.
+  document.getElementById('keys-body').innerHTML = KEY_HELP.map(([title, rows, mouse]) =>
+    `<section><h3>${title}</h3>${rows.map(([k, d]) => `<div class="keys-row"><span>${mouse ? `<span class="keys-mouse">${k}</span>`
+      : k.split(' / ').map(x => `<kbd>${x}</kbd>`).join(' / ')}</span><span>${d}</span></div>`).join('')}</section>`).join('');
+  document.getElementById('keys-overlay').classList.add('open');
 }
 
-const editorHas = (fn) => !!(currentEditor && typeof currentEditor[fn] === 'function');
-const editorCall = (fn) => { if (editorHas(fn)) currentEditor[fn](); };
-const disabledUnless = (fn) => editorHas(fn) ? '' : 'disabled';
-
-function appRibbonTabs() {
-  const { big, small } = Ribbon;
-  const wireClicks = (body) => body.querySelectorAll('[data-app]').forEach(b => b.addEventListener('click', () => {
-    const a = b.dataset.app;
-    if (a === 'new') openNewModal();
-    else if (a === 'new-kind') openNew(b.dataset.kind, b.dataset.template);
-    else if (a === 'fullscreen') toggleBrowserFullscreen();
-    else if (a === 'costs') CostSettings.open();
-    else if (a === 'about') document.getElementById('about-overlay').classList.add('open');
-    else editorCall(a);
-  }));
-  return [
-    { key: 'bestand', label: 'Bestand', order: 0, wire: wireClicks, groups: () => [
-      { label: 'Document', html:
-        big('Nieuw', 'file-earmark-plus', 'data-app="new" title="Nieuw ontwerp (Ctrl+N)"') +
-        big('Openen', 'folder2-open', `data-app="triggerImport" title="JSON-ontwerp openen" ${disabledUnless('triggerImport')}`) +
-        big('Opslaan', 'save', `data-app="exportDesign" title="Opslaan als JSON + PDF (Ctrl+S)" ${disabledUnless('exportDesign')}`) },
-      { label: 'Exporteren', html:
-        big('CAD (DXF)', 'vector-pen', `data-app="exportDxf" title="Plattegrond en gevels als DXF voor CAD (AutoCAD, BricsCAD, …), 1:1 in mm; daar op te slaan als DWG" ${disabledUnless('exportDxf')}`) +
-        big('BIM (IFC)', 'boxes', `data-app="exportIfc" title="Bouwconstructie als IFC4 (balken, platen, elektra) per element, zonder afwerking en inrichting" ${disabledUnless('exportIfc')}`) +
-        big('Render (OBJ)', 'badge-3d', `data-app="exportObj" title="Volledige afgewerkte woning als OBJ + MTL + texturen in een ZIP, voor renders in Blender" ${disabledUnless('exportObj')}`) },
-      { label: 'Snel nieuw', html:
-        Object.entries(HouseModel.MODELS).map(([key, m]) => small(m.label, m.icon, `data-app="new-kind" data-kind="woning" data-template="${key}"`)).join('') +
-        small('Woning', 'house', 'data-app="new-kind" data-kind="woning" data-template="single"') +
-        small('Woning L-vorm', 'bounding-box-circles', 'data-app="new-kind" data-kind="woning" data-template="L"') +
-        small('Los: muur', 'bricks', 'data-app="new-kind" data-kind="muur"') +
-        small('Los: vloer', 'grid-3x3', 'data-app="new-kind" data-kind="vloer"') },
-      { label: 'Project', html: big('Eigenschappen', 'card-text', `data-app="openProjectProperties" title="Projectgegevens voor de PDF" ${disabledUnless('openProjectProperties')}`) }
-    ] },
-    { key: 'beeld', label: 'Beeld', order: 80, wire: wireClicks, groups: () => [
-      { label: 'Venster', html:
-        small('Volledig scherm', 'fullscreen', 'data-app="fullscreen" title="F"') +
-        small('3D groot', 'badge-3d', `data-app="toggleFullscreen3D" title="T: standaard → 3D groot → alleen render" ${disabledUnless('toggleFullscreen3D')}`) +
-        small('2D groot', 'aspect-ratio', `data-app="toggleFullscreen2D" title="R" ${disabledUnless('toggleFullscreen2D')}`) },
-      { label: 'Camera', html:
-        big('Lopen', 'person-walking', `data-app="toggleWalk" title="Shift+T. W/S of pijltjes: vooruit/achteruit · A/D: opzij · pijl links/rechts: draaien · Shift: rennen · slepen: rondkijken" ${disabledUnless('toggleWalk')}`) +
-        small('Bediening', 'mouse', 'title="Rondom: slepen = draaien · rechts slepen = verschuiven · scrollwiel = zoomen. Lopen: Shift+T."') }
-    ] },
-    { key: 'extra', label: 'Extra', order: 90, wire: wireClicks, groups: () => [
-      { label: 'Bewerken', html: small('Horizontaal spiegelen', 'symmetry-vertical', `data-app="mirrorHorizontal" title="H" ${disabledUnless('mirrorHorizontal')}`) },
-      { label: 'Instellingen', html: big('Kosten & tijden', 'calculator', 'data-app="costs"') },
-      { label: 'Info', html: big('Over Tectum', 'info-circle', 'data-app="about"') }
-    ] }
-  ];
+function togglePanels() {
+  document.body.classList.toggle('panels-hidden');
+  window.dispatchEvent(new Event('resize'));
 }
 
 function renderTabBar() {
-  const bar = document.getElementById('tab-bar');
+  const bar = document.getElementById('doc-tabs');
   bar.innerHTML = tabs.map(tab => `
-    <div class="tab-item ${tab.id === activeTabId ? 'active' : ''}" data-tab-id="${tab.id}">
-      <span class="tab-name">${tab.name}</span>
-      <span class="tab-close" data-close-id="${tab.id}">&times;</span>
+    <div class="doc-tab ${tab.id === activeTabId ? 'active' : ''}" data-tab-id="${tab.id}" role="tab" aria-selected="${tab.id === activeTabId}" title="${UI.esc(tab.name)}">
+      <span class="doc-name">${UI.esc(tab.name)}</span>
+      <button type="button" class="doc-close" data-close-id="${tab.id}" title="Sluiten" aria-label="Sluiten">&times;</button>
     </div>
   `).join('');
+  document.getElementById('top-save').disabled = !editorHas('exportDesign');
 }
 
 function onTabSaved(tab, filenameWithExt) {
@@ -106,7 +118,6 @@ function onTabSaved(tab, filenameWithExt) {
 function mountEditorForTab(tab) {
   const ws = document.getElementById('workspace');
   ws.innerHTML = '';
-  Ribbon.setSource('editor', []);
   currentEditor = editorModuleFor(tab.kind).mount(ws, { onSaved: (filename) => onTabSaved(tab, filename), template: tab.template, cameraKey: 'tab' + tab.id });
   if (tab.stateJson && typeof currentEditor.loadStateJson === 'function') {
     currentEditor.loadStateJson(tab.stateJson);
@@ -124,7 +135,6 @@ function switchToTab(tabId) {
 
   activeTabId = tabId;
   mountEditorForTab(tabs.find(t => t.id === tabId));
-  updateEditMenuState();
   renderTabBar();
 }
 
@@ -142,7 +152,6 @@ function openNew(kind, template) {
   tabs.push(tab);
   activeTabId = tab.id;
   mountEditorForTab(tab);
-  updateEditMenuState();
   renderTabBar();
 }
 
@@ -183,17 +192,15 @@ function closeTab(tabId) {
     switchToTab(tabs[tabs.length - 1].id);
   } else {
     setWorkspaceEmpty();
-    Ribbon.setSource('editor', []);
-    updateEditMenuState();
     renderTabBar();
   }
 }
 
 function wireTabBar() {
-  document.getElementById('tab-bar').addEventListener('click', (e) => {
-    const closeBtn = e.target.closest('.tab-close');
+  document.getElementById('doc-tabs').addEventListener('click', (e) => {
+    const closeBtn = e.target.closest('.doc-close');
     if (closeBtn) { closeTab(parseInt(closeBtn.dataset.closeId, 10)); return; }
-    const item = e.target.closest('.tab-item');
+    const item = e.target.closest('.doc-tab');
     if (item) switchToTab(parseInt(item.dataset.tabId, 10));
   });
 }
@@ -237,41 +244,54 @@ function toggleBrowserFullscreen() {
   else document.documentElement.requestFullscreen();
 }
 
+// Alle dialogen; Esc gebruikt hun Annuleren-knop (data-esc), zodat bijv. projectgegevens worden teruggezet.
+const OVERLAYS = '.dlg-overlay.open, #about-overlay.open, #new-overlay.open, #house-project-overlay.open, #wall-project-overlay.open, #cost-settings-overlay.open';
+function closeOverlays() {
+  const open = document.querySelector(OVERLAYS);
+  if (open) {
+    const cancel = open.querySelector('[data-esc]');
+    if (cancel) cancel.click(); else open.classList.remove('open');
+    return true;
+  }
+  return Menubar.close() || UI.closePopovers();
+}
+
 function wireHotkeys() {
   document.addEventListener('keydown', (e) => {
     const inField = ['INPUT', 'SELECT', 'TEXTAREA'].includes(document.activeElement.tagName);
-
-    if (e.ctrlKey && e.key.toLowerCase() === 's') {
-      e.preventDefault();
-      if (currentEditor && typeof currentEditor.exportDesign === 'function') currentEditor.exportDesign();
+    const k = e.key.toLowerCase();
+    // Dialoog open: alleen Esc (sluiten); geen sneltoetsen naar de editor erachter. Typen in de dialoog blijft werken.
+    if (document.querySelector(OVERLAYS)) {
+      if (e.key === 'Escape') closeOverlays();
+      e.stopImmediatePropagation();
       return;
     }
-    if (e.ctrlKey && e.key.toLowerCase() === 'n') {
-      e.preventDefault();
-      openNewModal();
+    if (e.ctrlKey || e.metaKey) {
+      const act = { s: () => editorCall('exportDesign'), n: openNewModal, o: () => editorCall('triggerImport'), '\\': togglePanels }[k];
+      if (act && !e.altKey && !e.shiftKey) { e.preventDefault(); act(); }
       return;
     }
-    if (inField || e.ctrlKey || e.metaKey || e.altKey) return;
-
-    if (e.key.toLowerCase() === 'f') {
-      toggleBrowserFullscreen();
-    } else if (e.key.toLowerCase() === 'h') {
-      if (currentEditor && typeof currentEditor.mirrorHorizontal === 'function') currentEditor.mirrorHorizontal();
-    } else if (e.key.toLowerCase() === 't' && e.shiftKey) {
-      if (currentEditor && typeof currentEditor.toggleWalk === 'function') currentEditor.toggleWalk();
-    } else if (e.key.toLowerCase() === 't') {
-      if (currentEditor && typeof currentEditor.toggleFullscreen3D === 'function') currentEditor.toggleFullscreen3D();
-    } else if (e.key.toLowerCase() === 'r') {
-      if (currentEditor && typeof currentEditor.toggleFullscreen2D === 'function') currentEditor.toggleFullscreen2D();
-    }
-  });
+    if (e.key === 'Escape' && closeOverlays()) { e.stopImmediatePropagation(); return; }
+    if (inField || e.altKey || viewState().walk && !['l', 'escape'].includes(k)) return;
+    const view = UI.VIEWS.find(v => v.key1 === e.key);
+    if (view) editorCall('setView', view.key);
+    else if (e.key === '4') editorCall('toggleReport');
+    else if (k === 'x') editorCall('toggleSection');
+    else if (k === 'f') editorCall('fitView');
+    else if (k === 'l') editorCall('toggleWalk');
+    else if (k === 'h' && e.shiftKey) editorCall('mirrorHorizontal');
+    else if (e.key === '?') openKeys();
+  }, true);
 }
 
 document.addEventListener('DOMContentLoaded', () => {
   document.querySelectorAll('.app-version-slot').forEach(el => { el.textContent = 'v' + APP_VERSION; });
   document.querySelectorAll('.app-version-number').forEach(el => { el.textContent = APP_VERSION; });
-  Ribbon.init(document.getElementById('ribbon'));
-  Ribbon.setSource('app', appRibbonTabs());
+  Menubar.init(document.getElementById('menubar'), MENUS);
+  document.getElementById('top-save').addEventListener('click', () => editorCall('exportDesign'));
+  document.getElementById('keys-overlay').addEventListener('click', (e) => {
+    if (e.target.id === 'keys-overlay' || e.target.closest('[data-close]')) document.getElementById('keys-overlay').classList.remove('open');
+  });
   wireAbout();
   wireNewModal();
   wireHotkeys();

js/core/build-stages.js

@@ -1,62 +0,0 @@
-/*!
- * Tectum
- * Copyright © 2026 Machiel Heinen.
- * Alle rechten voorbehouden. Gebruik uitsluitend met schriftelijke toestemming.
- * Zie LICENTIE.md.
- */
-
-window.BuildStages = (() => {
-  const LIST = [
-    { key: 'regelwerk', label: 'Regelwerk', hint: 'Vloer-, wand- en dakbalken' },
-    { key: 'elektra', label: 'Elektra', hint: 'Installatiebuizen door wanden en plafond, dozen en meterkast' },
-    { key: 'beplating', label: 'Beplating', hint: 'Spaanplaat binnen, OSB vloer, plafond en dakbeschot, cementplaat buiten' },
-    { key: 'doek', label: 'Vochtdoek', hint: 'Vochtdoek op de buitenzijde' },
-    { key: 'latwerk', label: 'Latwerk', hint: 'Kruislat en trasraamplaat' },
-    { key: 'gevel', label: 'Gevel & dak', hint: 'Rabat, steen, kozijnen, dakbedekking, sandwichpanelen' },
-    { key: 'afwerking', label: 'Afgewerkt', hint: 'Dakrand, verlichting, vloerafwerking, verf binnen' }
-  ];
-  const FINAL = LIST.length - 1;
-  const INDEX = Object.fromEntries(LIST.map((s, i) => [s.key, i]));
-
-  const clamp = (stage) => (typeof stage === 'number' && isFinite(stage)) ? Math.max(0, Math.min(FINAL, Math.round(stage))) : FINAL;
-  const shows = (stage, key) => clamp(stage) >= INDEX[key];
-
-  function createBar(pane, stage, onChange) {
-    const el = document.createElement('div');
-    el.className = 'stage-bar';
-    el.innerHTML = `
-      <div class="stage-row">
-        <span class="stage-title"><i class="bi bi-layers"></i>Bouwfase</span>
-        <div class="stage-track">
-          <input type="range" class="stage-range" min="0" max="${FINAL}" step="1" value="${clamp(stage)}" aria-label="Bouwfase">
-          <div class="stage-ticks">${LIST.map((s, i) => `<span data-i="${i}" title="${s.label}: ${s.hint}">${i + 1}</span>`).join('')}</div>
-        </div>
-        <span class="stage-name"></span>
-      </div>
-      <div class="stage-extra"></div>`;
-    pane.appendChild(el);
-    const range = el.querySelector('.stage-range'), name = el.querySelector('.stage-name');
-    const sync = () => {
-      const i = clamp(Number(range.value));
-      name.textContent = LIST[i].label;
-      name.title = LIST[i].hint;
-      el.querySelectorAll('.stage-ticks span').forEach(t => t.classList.toggle('on', Number(t.dataset.i) <= i));
-    };
-    range.addEventListener('input', () => { sync(); onChange(clamp(Number(range.value))); });
-    el.querySelector('.stage-ticks').addEventListener('click', (e) => {
-      const t = e.target.closest('[data-i]');
-      if (!t) return;
-      range.value = t.dataset.i;
-      sync();
-      onChange(clamp(Number(range.value)));
-    });
-    // T, R, ... zijn sneltoetsen van de weergave, niet van de schuif.
-    range.addEventListener('keydown', (e) => { if (!/^Arrow|Home|End/.test(e.key)) range.blur(); });
-    // Na slepen focus loslaten, zodat de pijltoetsen weer naar de weergave (lopen) gaan.
-    el.addEventListener('pointerup', (e) => { if (e.target.matches('input[type=range]')) setTimeout(() => e.target.blur(), 0); });
-    sync();
-    return { el, extra: el.querySelector('.stage-extra'), set: (s) => { range.value = clamp(s); sync(); } };
-  }
-
-  return { LIST, FINAL, INDEX, clamp, shows, createBar };
-})();

js/core/glb-writer.js

@@ -0,0 +1,211 @@
+/*!
+ * Tectum
+ * Copyright © 2026 Machiel Heinen.
+ * Alle rechten voorbehouden. Gebruik uitsluitend met schriftelijke toestemming.
+ * Zie LICENTIE.md.
+ */
+// glTF 2.0 binair (GLB) uit three.js-objecten, in meters, Y omhoog; bedoeld voor AR (model-viewer: WebXR, Scene Viewer,
+// Quick Look) en andere viewers. Alles in wereldcoördinaten samengevoegd tot één mesh met één primitive per materiaal
+// (weinig draw calls op een telefoon). Texturen: herhaling/verschuiving (texture.matrix) zit in de UV's, beelden als
+// JPEG (of PNG bij doorzichtig), maximaal MAX_TEX px. Lichteffecten (bundels, vegen: onbelicht en doorschijnend zonder
+// dieptebuffer, of additief) blijven weg; die horen bij de eigen belichting, niet in een model.
+
+window.GlbWriter = (() => {
+  const MAX_TEX = 1024;
+  const lin = (x) => x <= 0.04045 ? x / 12.92 : Math.pow((x + 0.055) / 1.055, 2.4);
+  const WRAP = { 1000: 10497, 1001: 33071, 1002: 33648 }; // three Repeat/Clamp/Mirrored -> glTF
+
+  const isEffect = (m) => m.blending !== THREE.NormalBlending || (m.isMeshBasicMaterial && m.transparent && m.depthWrite === false);
+
+  // Beeld als JPEG/PNG-bytes, afmetingen een macht van 2 (mipmaps en herhalen ook op oudere toestellen), hoogstens
+  // MAX_TEX; null als het (nog) niet te tekenen is. UV's zijn 0..1, dus het rekken verandert niets aan het beeld.
+  const pot = (n) => Math.min(MAX_TEX, Math.pow(2, Math.max(0, Math.round(Math.log2(n)))));
+  function imageBytes(image, png) {
+    try {
+      const w0 = image.naturalWidth || image.videoWidth || image.width, h0 = image.naturalHeight || image.videoHeight || image.height;
+      if (!w0 || !h0) return null;
+      const c = document.createElement('canvas');
+      c.width = pot(w0); c.height = pot(h0);
+      c.getContext('2d').drawImage(image, 0, 0, c.width, c.height);
+      const bin = atob(c.toDataURL(png ? 'image/png' : 'image/jpeg', 0.85).split(',')[1]);
+      const out = new Uint8Array(bin.length);
+      for (let i = 0; i < bin.length; i++) out[i] = bin.charCodeAt(i);
+      return { data: out, mime: png ? 'image/png' : 'image/jpeg' };
+    } catch (e) { return null; }
+  }
+
+  // objects: three.js-objecten (zichtbaar deel); origin: verschuiving in meters. Geeft { blob, stats }.
+  function build(objects, opts) {
+    const o = opts || {};
+    const origin = o.origin || { x: 0, y: 0, z: 0 };
+    const buckets = new Map(); // materiaal -> { mat, tex, pos, nrm, uv, idx, n }
+    const images = new Map(), samplers = new Map(), textures = new Map();
+    const gltfImages = [], gltfSamplers = [], gltfTextures = [];
+    const bin = [];
+    let binLength = 0, triCount = 0;
+    function addView(data, target) {
+      const pad = (4 - binLength % 4) % 4;
+      if (pad) { bin.push(new Uint8Array(pad)); binLength += pad; }
+      const view = { buffer: 0, byteOffset: binLength, byteLength: data.byteLength };
+      if (target) view.target = target;
+      bin.push(new Uint8Array(data.buffer, data.byteOffset, data.byteLength));
+      binLength += data.byteLength;
+      return view;
+    }
+    const views = [];
+
+    function textureIndex(tex, png) {
+      if (!tex || !tex.image) return null;
+      if (!images.has(tex.image)) {
+        const img = imageBytes(tex.image, png);
+        if (img) { views.push(addView(img.data)); gltfImages.push({ bufferView: views.length - 1, mimeType: img.mime }); }
+        images.set(tex.image, img ? gltfImages.length - 1 : null);
+      }
+      const source = images.get(tex.image);
+      if (source === null) return null;
+      const sKey = `${tex.wrapS}/${tex.wrapT}`;
+      if (!samplers.has(sKey)) {
+        gltfSamplers.push({ magFilter: 9729, minFilter: 9987, wrapS: WRAP[tex.wrapS] || 10497, wrapT: WRAP[tex.wrapT] || 10497 });
+        samplers.set(sKey, gltfSamplers.length - 1);
+      }
+      const tKey = `${source}/${samplers.get(sKey)}`;
+      if (!textures.has(tKey)) { gltfTextures.push({ source, sampler: samplers.get(sKey) }); textures.set(tKey, gltfTextures.length - 1); }
+      return textures.get(tKey);
+    }
+    function bucketOf(m) {
+      if (!buckets.has(m)) {
+        const map = m.map && m.map.image ? m.map : null;
+        const tex = map ? textureIndex(map, !!m.transparent) : null;
+        buckets.set(m, { mat: m, map: tex !== null ? map : null, tex, pos: [], nrm: [], uv: [], idx: [], n: 0 });
+      }
+      return buckets.get(m);
+    }
+
+    const v = new THREE.Vector3(), nm = new THREE.Matrix3(), uv = new THREE.Vector2();
+    const pa = new THREE.Vector3(), pb = new THREE.Vector3(), pc = new THREE.Vector3(), face = new THREE.Vector3();
+    const visit = (root) => root && (root.updateMatrixWorld(true), root.traverseVisible(mesh => {
+      if (!mesh.isMesh || !mesh.geometry || !mesh.geometry.attributes.position) return;
+      let g = mesh.geometry;
+      if (!g.attributes.normal) { g = g.clone(); g.computeVertexNormals(); }
+      const pos = g.attributes.position, nrm = g.attributes.normal, uvA = g.attributes.uv, idx = g.index;
+      nm.getNormalMatrix(mesh.matrixWorld);
+      const flip = mesh.matrixWorld.determinant() < 0;
+      const list = Array.isArray(mesh.material) ? mesh.material : [mesh.material];
+      const groups = g.groups && g.groups.length ? g.groups : [{ start: 0, count: idx ? idx.count : pos.count, materialIndex: 0 }];
+      const remaps = new Map(); // bucket -> bronhoekpunt -> index in de bucket
+      groups.forEach(gr => {
+        const m = list[gr.materialIndex] || list[0];
+        if (!m || m.visible === false || isEffect(m)) return;
+        const b = bucketOf(m);
+        if (!remaps.has(b)) remaps.set(b, new Int32Array(pos.count).fill(-1));
+        const remap = remaps.get(b);
+        if (b.map) b.map.updateMatrix();
+        const add = (ci) => {
+          if (remap[ci] >= 0) return remap[ci];
+          v.fromBufferAttribute(pos, ci).applyMatrix4(mesh.matrixWorld);
+          b.pos.push(v.x - origin.x, v.y - origin.y, v.z - origin.z);
+          // Een lege normaal (bron met nul-driehoeken) wordt de vlaknormaal: glTF eist lengte 1.
+          v.fromBufferAttribute(nrm, ci).applyMatrix3(nm);
+          if (v.lengthSq() < 1e-12) v.copy(face); else v.normalize();
+          b.nrm.push(v.x, v.y, v.z);
+          if (b.map) {
+            if (uvA) uv.fromBufferAttribute(uvA, ci).applyMatrix3(b.map.matrix); else uv.set(0, 0);
+            // three (flipY) heeft v = 0 onderaan het beeld, glTF bovenaan.
+            b.uv.push(uv.x, b.map.flipY ? 1 - uv.y : uv.y);
+          }
+          return (remap[ci] = b.n++);
+        };
+        const end = Math.min(gr.start + gr.count, idx ? idx.count : pos.count);
+        for (let k = gr.start; k + 2 < end; k += 3) {
+          const s = [0, 1, 2].map(j => idx ? idx.getX(k + j) : k + j);
+          // Driehoeken zonder oppervlakte (< 0,1 mm²) overslaan.
+          pa.fromBufferAttribute(pos, s[0]).applyMatrix4(mesh.matrixWorld);
+          pb.fromBufferAttribute(pos, s[1]).applyMatrix4(mesh.matrixWorld).sub(pa);
+          pc.fromBufferAttribute(pos, s[2]).applyMatrix4(mesh.matrixWorld).sub(pa);
+          face.crossVectors(pb, pc);
+          const len = face.length();
+          if (len < 2e-7) continue;
+          face.multiplyScalar(flip ? -1 / len : 1 / len);
+          const c = s.map(add);
+          if (flip) b.idx.push(c[0], c[2], c[1]); else b.idx.push(c[0], c[1], c[2]);
+          triCount++;
+        }
+      });
+    }));
+    objects.forEach(visit);
+
+    // Accessors en materialen per bucket.
+    const accessors = [], materials = [], primitives = [];
+    let unlit = false;
+    const accessor = (arr, type, comps, ctype, target, minMax) => {
+      views.push(addView(arr, target));
+      const a = { bufferView: views.length - 1, componentType: ctype, count: arr.length / comps, type };
+      if (minMax) Object.assign(a, minMax);
+      accessors.push(a);
+      return accessors.length - 1;
+    };
+    buckets.forEach(b => {
+      if (!b.idx.length) return;
+      const m = b.mat, pos = new Float32Array(b.pos);
+      const min = [Infinity, Infinity, Infinity], max = [-Infinity, -Infinity, -Infinity];
+      for (let i = 0; i < pos.length; i++) { const a = i % 3; if (pos[i] < min[a]) min[a] = pos[i]; if (pos[i] > max[a]) max[a] = pos[i]; }
+      const attributes = {
+        POSITION: accessor(pos, 'VEC3', 3, 5126, 34962, { min, max }),
+        NORMAL: accessor(new Float32Array(b.nrm), 'VEC3', 3, 5126, 34962)
+      };
+      if (b.map) attributes.TEXCOORD_0 = accessor(new Float32Array(b.uv), 'VEC2', 2, 5126, 34962);
+      const big = b.n >= 65535; // 65535 zelf mag niet in Uint16 (glTF)
+      const indices = accessor(big ? new Uint32Array(b.idx) : new Uint16Array(b.idx), 'SCALAR', 1, big ? 5125 : 5123, 34963);
+
+      // De app toont kleurwaarden zoals ze zijn (geen kleurbeheer); glTF-factoren zijn lineair, beelden sRGB.
+      const c = m.color || { r: 0.6, g: 0.6, b: 0.6 };
+      const alpha = m.transparent ? (m.opacity !== undefined ? m.opacity : 1) : 1;
+      const pbr = {
+        baseColorFactor: [lin(c.r), lin(c.g), lin(c.b), alpha],
+        metallicFactor: m.metalness !== undefined ? m.metalness : 0,
+        roughnessFactor: m.roughness !== undefined ? m.roughness : 0.85
+      };
+      if (b.tex !== null) pbr.baseColorTexture = { index: b.tex };
+      const mat = { name: m.name || m.type, pbrMetallicRoughness: pbr };
+      if (m.emissive && (m.emissive.r || m.emissive.g || m.emissive.b)) {
+        const k = m.emissiveIntensity !== undefined ? m.emissiveIntensity : 1;
+        mat.emissiveFactor = [m.emissive.r, m.emissive.g, m.emissive.b].map(x => Math.min(1, lin(x) * k));
+      }
+      if (m.transparent && (alpha < 1 || b.tex !== null)) mat.alphaMode = 'BLEND';
+      if (m.side !== THREE.FrontSide) mat.doubleSided = true;
+      if (m.isMeshBasicMaterial) { mat.extensions = { KHR_materials_unlit: {} }; unlit = true; }
+      materials.push(mat);
+      primitives.push({ attributes, indices, material: materials.length - 1, mode: 4 });
+    });
+
+    const json = {
+      asset: { version: '2.0', generator: `Tectum${o.app ? ' ' + o.app : ''}` },
+      scene: 0,
+      scenes: [{ name: o.name || 'woning', nodes: [0] }],
+      nodes: [{ name: o.name || 'woning', mesh: 0 }],
+      meshes: [{ name: o.name || 'woning', primitives }],
+      materials, accessors, bufferViews: views,
+      buffers: [{ byteLength: 0 }]
+    };
+    if (gltfImages.length) Object.assign(json, { images: gltfImages, samplers: gltfSamplers, textures: gltfTextures });
+    if (unlit) json.extensionsUsed = ['KHR_materials_unlit'];
+    const binPad = (4 - binLength % 4) % 4;
+    if (binPad) { bin.push(new Uint8Array(binPad)); binLength += binPad; }
+    json.buffers[0].byteLength = binLength;
+
+    // GLB: kop (12 bytes), JSON-blok (opgevuld met spaties), BIN-blok (opgevuld met nullen).
+    let jsonBytes = new TextEncoder().encode(JSON.stringify(json));
+    const jsonPad = (4 - jsonBytes.length % 4) % 4;
+    if (jsonPad) { const p = new Uint8Array(jsonBytes.length + jsonPad).fill(0x20); p.set(jsonBytes); jsonBytes = p; }
+    const total = 12 + 8 + jsonBytes.length + 8 + binLength;
+    const head = new DataView(new ArrayBuffer(20));
+    head.setUint32(0, 0x46546C67, true); head.setUint32(4, 2, true); head.setUint32(8, total, true);
+    head.setUint32(12, jsonBytes.length, true); head.setUint32(16, 0x4E4F534A, true);
+    const binHead = new DataView(new ArrayBuffer(8));
+    binHead.setUint32(0, binLength, true); binHead.setUint32(4, 0x004E4942, true);
+    const blob = new Blob([head, jsonBytes, binHead].concat(bin), { type: 'model/gltf-binary' });
+    return { blob, stats: { triangles: triCount, materials: materials.length, textures: gltfImages.length, bytes: total } };
+  }
+
+  return { build };
+})();

js/core/inspector.js

@@ -0,0 +1,70 @@
+/*!
+ * Tectum
+ * Copyright © 2026 Machiel Heinen.
+ * Alle rechten voorbehouden. Gebruik uitsluitend met schriftelijke toestemming.
+ * Zie LICENTIE.md.
+ */
+// Eigenschappenpaneel rechts: eigenschappen van de selectie, of van de woning als er niets geselecteerd is.
+// Een sectie = { key, label, icon, groups() → [{ label, html }], wire(el) }; elke sectie krijgt een eigen element,
+// zodat wire() alleen de eigen knoppen koppelt.
+
+window.Inspector = (() => {
+  const { icon, esc } = UI;
+  const big = UI.btnOf('ins-btn ins-big');
+  const small = UI.btnOf('ins-btn');
+  const kv = (label, value, unit) =>
+    `<div class="ins-kv"><span>${label}</span><b>${value}${unit ? `<small>${unit}</small>` : ''}</b></div>`;
+
+  const PREF_KEY = 'tectum.inspector.open';
+  let open;
+  try { open = new Set(JSON.parse(localStorage.getItem(PREF_KEY) || 'null') || ['gevel']); } catch (e) { open = new Set(['gevel']); }
+  const saveOpen = () => { try { localStorage.setItem(PREF_KEY, JSON.stringify([...open])); } catch (e) { } };
+
+  // Een groepskop gelijk aan de sectienaam (bijv. Elektra › Elektra) vervalt.
+  const groupsHtml = (groups, secLabel) => groups.filter(Boolean).map(g =>
+    `<div class="ins-group${g.cls ? ' ' + g.cls : ''}">${g.label && g.label.toLowerCase() !== String(secLabel || '').toLowerCase() ? `<h3>${g.label}</h3>` : ''}<div class="ins-group-body">${g.html}</div></div>`).join('');
+
+  // view = { crumbs: [{ label, attrs }], title, icon, sub, top: html, sections: [...], collapsible, onBack }
+  function render(el, view) {
+    const scrollKey = view.title + '|' + (view.sub || '');
+    const keepScroll = el._insKey === scrollKey ? el.scrollTop : 0;
+    el._insKey = scrollKey;
+    el.innerHTML = `<div class="ins-head">
+        ${view.crumbs && view.crumbs.length ? `<div class="ins-crumbs">${view.crumbs.map(c => `<button type="button" class="ins-crumb" ${c.attrs || ''}>${esc(c.label)}</button>`).join(icon('chevron-right'))}${icon('chevron-right')}</div>` : ''}
+        <h2>${view.icon ? icon(view.icon) : ''}<span>${esc(view.title)}</span></h2>
+        ${view.sub ? `<div class="ins-sub">${esc(view.sub)}</div>` : ''}
+      </div>
+      ${view.top ? `<div class="ins-top">${view.top}</div>` : ''}
+      <div class="ins-sections"></div>`;
+    const host = el.querySelector('.ins-sections');
+    view.sections.filter(Boolean).forEach(sec => {
+      const node = document.createElement('section');
+      const collapsible = view.collapsible;
+      const isOpen = !collapsible || open.has(sec.key);
+      node.className = 'ins-section' + (collapsible ? ' ins-collapsible' : '') + (isOpen ? ' open' : '');
+      node.innerHTML = (collapsible ? `<button type="button" class="ins-section-head" aria-expanded="${isOpen}">${sec.icon ? icon(sec.icon) : ''}<span>${sec.label}</span>${icon('chevron-down')}</button>` : '') +
+        '<div class="ins-section-body"></div>';
+      host.appendChild(node);
+      // Een dichte sectie wordt pas opgebouwd (en gekoppeld) als hij opengaat.
+      let built = false;
+      const build = () => {
+        if (built) return;
+        built = true;
+        node.querySelector('.ins-section-body').innerHTML = groupsHtml(sec.groups ? sec.groups() : [], sec.label);
+        if (sec.wire) sec.wire(node);
+      };
+      if (isOpen) build();
+      if (collapsible) node.querySelector('.ins-section-head').addEventListener('click', () => {
+        const now = !node.classList.contains('open');
+        if (now) build();
+        node.classList.toggle('open', now);
+        node.querySelector('.ins-section-head').setAttribute('aria-expanded', now);
+        if (now) open.add(sec.key); else open.delete(sec.key);
+        saveOpen();
+      });
+    });
+    el.scrollTop = keepScroll;
+  }
+
+  return { big, small, kv, render };
+})();

js/core/menubar.js

@@ -0,0 +1,62 @@
+/*!
+ * Tectum
+ * Copyright © 2026 Machiel Heinen.
+ * Alle rechten voorbehouden. Gebruik uitsluitend met schriftelijke toestemming.
+ * Zie LICENTIE.md.
+ */
+// Menubalk: menu = { label, items: [{ label, icon, keys, run, enabled(), checked() } | { sep: true } | { head }] }.
+// Beschikbaarheid wordt bij het openen bepaald; is een menu open, dan opent hover het buurmenu.
+
+window.Menubar = (() => {
+  let root = null, menus = [], openIdx = -1;
+
+  function itemHtml(it, mi, ii) {
+    if (it.sep) return '<div class="mb-sep"></div>';
+    if (it.head) return `<div class="mb-head">${it.head}</div>`;
+    const off = it.enabled && !it.enabled();
+    const on = it.checked && it.checked();
+    return `<button type="button" class="mb-item${on ? ' checked' : ''}" data-mi="${mi}" data-ii="${ii}"${off ? ' disabled' : ''}>
+      <span class="mb-ico">${on ? '<i class="bi bi-check2"></i>' : it.icon ? `<i class="bi bi-${it.icon}"></i>` : ''}</span>
+      <span class="mb-label">${it.label}</span><span class="mb-keys">${it.keys || ''}</span></button>`;
+  }
+
+  function close() {
+    if (openIdx < 0) return false;
+    openIdx = -1;
+    UI.release(close);
+    root.querySelectorAll('.mb-menu').forEach(m => m.classList.remove('open'));
+    root.querySelectorAll('.mb-drop').forEach(d => { d.innerHTML = ''; });
+    return true;
+  }
+
+  function openMenu(i) {
+    if (openIdx < 0) UI.claim(close);
+    else { root.querySelectorAll('.mb-menu').forEach(m => m.classList.remove('open')); root.querySelectorAll('.mb-drop').forEach(d => { d.innerHTML = ''; }); }
+    openIdx = i;
+    const wrap = root.querySelectorAll('.mb-menu')[i];
+    wrap.classList.add('open');
+    wrap.querySelector('.mb-drop').innerHTML = menus[i].items.map((it, ii) => itemHtml(it, i, ii)).join('');
+  }
+
+  function init(el, list) {
+    root = el;
+    menus = list;
+    el.innerHTML = menus.map((m, i) => `<div class="mb-menu"><button type="button" class="mb-top" data-menu="${i}">${m.label}</button><div class="mb-drop" role="menu"></div></div>`).join('');
+    el.addEventListener('click', (e) => {
+      e.stopPropagation();
+      const top = e.target.closest('[data-menu]');
+      if (top) { const i = Number(top.dataset.menu); if (openIdx === i) close(); else openMenu(i); return; }
+      const item = e.target.closest('.mb-item');
+      if (!item || item.disabled) return;
+      const it = menus[Number(item.dataset.mi)].items[Number(item.dataset.ii)];
+      close();
+      it.run();
+    });
+    el.addEventListener('mouseover', (e) => {
+      const top = e.target.closest('[data-menu]');
+      if (top && openIdx >= 0 && Number(top.dataset.menu) !== openIdx) openMenu(Number(top.dataset.menu));
+    });
+  }
+
+  return { init, close };
+})();

js/core/obj-writer.js

@@ -129,5 +129,70 @@ window.ObjWriter = (() => {
     };
   }
 
-  return { build };
+  // OBJ kent geen lampen: een Blender-script dat de OBJ importeert (als die er nog niet is) en de lampen als echte
+  // spotlights plaatst. sources: LightingModel.lightSources (m, Y omhoog); Blender is Z omhoog: (x, -z, y).
+  const BLENDER_WATT = { wandlamp: 10, dakrandspot: 8, binnenspot: 15 };
+  function blenderLights(sources, opts) {
+    const o = opts || {}, origin = o.origin || { x: 0, y: 0, z: 0 }, name = o.name || 'woning';
+    const c = new THREE.Color(o.color !== undefined ? o.color : 0xffd9a0);
+    const lin = (x) => x <= 0.04045 ? x / 12.92 : Math.pow((x + 0.055) / 1.055, 2.4);
+    const t = (v) => `(${v.map(f4).join(', ')})`;
+    const rows = sources.map(s => `    (${JSON.stringify(s.kind)}, ${t([s.x - origin.x, -(s.z - origin.z), s.y - origin.y])}, ${t([s.dir.x, -s.dir.z, s.dir.y])}, ` +
+      `${f3(Math.min(Math.PI, s.angle * 2))}, ${f3(s.penumbra)}, ${BLENDER_WATT[s.kind] || 10}),\n`).join('');
+    return `# Tectum${o.app ? ' ' + o.app : ''}: lampen voor ${name}.obj
+# Blender: Scripting > Open > dit bestand > Run Script. Importeert ${name}.obj uit dezelfde map
+# (IMPORTEER = False als je de OBJ al zelf hebt geïmporteerd) en zet elke lamp als spotlight in de
+# collectie "Tectum lampen"; opnieuw uitvoeren vervangt de lampen.
+# HELDERHEID schaalt alle lampen; vermogens in watt per soort staan in de lijst (soort, plek, richting,
+# kegel, zachte rand, watt).
+import bpy, os
+from mathutils import Vector
+
+IMPORTEER = True
+HELDERHEID = 1.0
+KLEUR = (${f3(lin(c.r))}, ${f3(lin(c.g))}, ${f3(lin(c.b))})
+OBJ = "${name}.obj"
+LAMPEN = [
+${rows}]
+
+def map_van_script():
+    for area in bpy.context.screen.areas if bpy.context.screen else []:
+        if area.type == 'TEXT_EDITOR' and area.spaces.active.text and area.spaces.active.text.filepath:
+            return os.path.dirname(bpy.path.abspath(area.spaces.active.text.filepath))
+    return os.path.dirname(bpy.data.filepath) if bpy.data.filepath else ""
+
+pad = os.path.join(map_van_script(), OBJ)
+if IMPORTEER and not any(ob.get("tectum") == OBJ for ob in bpy.data.objects):
+    if not os.path.exists(pad):
+        raise Exception(f"{OBJ} niet gevonden naast dit script; zet IMPORTEER = False na een eigen import")
+    if hasattr(bpy.ops.wm, "obj_import"):
+        bpy.ops.wm.obj_import(filepath=pad)
+    else:
+        bpy.ops.import_scene.obj(filepath=pad)
+    for ob in bpy.context.selected_objects:
+        ob["tectum"] = OBJ
+
+oud = bpy.data.collections.get("Tectum lampen")
+if oud:
+    for ob in list(oud.objects):
+        bpy.data.objects.remove(ob, do_unlink=True)
+    bpy.data.collections.remove(oud)
+col = bpy.data.collections.new("Tectum lampen")
+bpy.context.scene.collection.children.link(col)
+for i, (soort, plek, richting, kegel, rand, watt) in enumerate(LAMPEN):
+    licht = bpy.data.lights.new(f"{soort}_{i + 1}", 'SPOT')
+    licht.energy = watt * HELDERHEID
+    licht.color = KLEUR
+    licht.spot_size = kegel
+    licht.spot_blend = rand
+    licht.shadow_soft_size = 0.03
+    ob = bpy.data.objects.new(licht.name, licht)
+    ob.location = plek
+    ob.rotation_euler = Vector(richting).to_track_quat('-Z', 'Y').to_euler()
+    col.objects.link(ob)
+print(f"Tectum: {len(LAMPEN)} lampen geplaatst")
+`;
+  }
+
+  return { build, blenderLights };
 })();

js/core/ribbon.js

@@ -1,116 +0,0 @@
-/*!
- * Tectum
- * Copyright © 2026 Machiel Heinen.
- * Alle rechten voorbehouden. Gebruik uitsluitend met schriftelijke toestemming.
- * Zie LICENTIE.md.
- */
-
-window.Ribbon = (() => {
-  const sources = {};
-  const SOURCE_ORDER = ['app', 'editor'];
-  let root = null, tabsEl = null, bodyEl = null;
-  let activeKey = null, lastPlainKey = null;
-  let auto = true;
-  let collapsed = false, notified = null;
-  const listeners = [];
-  const PREF_KEY = 'tectum.ribbon.collapsed';
-
-  const icon = (n) => `<i class="bi bi-${n}" aria-hidden="true"></i>`;
-  const big = (label, iconName, attrs, cls) =>
-    `<button type="button" class="rb-btn rb-big${cls ? ' ' + cls : ''}" ${attrs || ''}>${icon(iconName)}<span>${label}</span></button>`;
-  const small = (label, iconName, attrs, cls) =>
-    `<button type="button" class="rb-btn rb-small${cls ? ' ' + cls : ''}" ${attrs || ''}>${icon(iconName)}<span>${label}</span></button>`;
-  const kv = (label, value, unit) =>
-    `<div class="rb-kv"><span>${label}</span><b>${value}${unit ? `<small>${unit}</small>` : ''}</b></div>`;
-
-  function allTabs() {
-    const byKey = new Map();
-    SOURCE_ORDER.concat(Object.keys(sources).filter(n => !SOURCE_ORDER.includes(n))).forEach(name => {
-      (sources[name] || []).forEach(t => {
-        if (!byKey.has(t.key)) byKey.set(t.key, { key: t.key, label: t.label, order: t.order || 0, contextual: !!t.contextual, icon: t.icon, parts: [] });
-        const m = byKey.get(t.key);
-        if (t.order !== undefined && name !== 'app') m.order = t.order;
-        if (t.label && name !== 'app') m.label = t.label;
-        if (t.contextual) m.contextual = true;
-        m.parts.push(t);
-      });
-    });
-    return Array.from(byKey.values()).sort((a, b) => (a.contextual - b.contextual) || (a.order - b.order));
-  }
-
-  function renderTabs(list) {
-    tabsEl.innerHTML = list.map(t =>
-      `<button type="button" class="rb-tab${t.key === activeKey ? ' active' : ''}${t.contextual ? ' rb-ctx' : ''}" data-rb-tab="${t.key}">${t.contextual && t.icon ? icon(t.icon) : ''}<span>${t.label}</span></button>`).join('');
-  }
-
-  function renderBody(list) {
-    const tab = list.find(t => t.key === activeKey);
-    if (!tab) { bodyEl.innerHTML = ''; return; }
-    const groups = [];
-    tab.parts.forEach(p => (p.groups ? p.groups() : []).forEach(g => g && groups.push(g)));
-    bodyEl.innerHTML = groups.map(g =>
-      `<section class="rb-group${g.cls ? ' ' + g.cls : ''}"><div class="rb-group-body">${g.html}</div><div class="rb-group-label">${g.label}</div></section>`).join('') +
-      `<button type="button" class="rb-collapse" title="Ribbon inklappen (dubbelklik op een tabblad)">${icon('chevron-up')}</button>`;
-    tab.parts.forEach(p => p.wire && p.wire(bodyEl));
-  }
-
-  function render() {
-    if (!root) return;
-    const list = allTabs();
-    if (!list.some(t => t.key === activeKey) || (auto && !list.some(t => t.key === activeKey && t.contextual))) {
-      const pick = [lastPlainKey, 'start'].find(k => list.some(t => t.key === k));
-      activeKey = pick || (list.find(t => !t.contextual) || {}).key || null;
-    }
-    renderTabs(list);
-    renderBody(list);
-    root.classList.toggle('rb-collapsed', collapsed);
-    if (notified !== activeKey) { notified = activeKey; listeners.forEach(fn => fn(activeKey)); }
-  }
-
-  function activate(key) {
-    const list = allTabs();
-    const tab = list.find(t => t.key === key);
-    if (!tab) return;
-    activeKey = key;
-    auto = false;
-    if (!tab.contextual) lastPlainKey = key;
-    if (collapsed) { collapsed = false; savePref(); }
-    render();
-    tab.parts.forEach(p => p.onShow && p.onShow());
-  }
-
-  function savePref() { try { localStorage.setItem(PREF_KEY, collapsed ? '1' : '0'); } catch (e) { } }
-
-  function init(el) {
-    root = el;
-    try { collapsed = localStorage.getItem(PREF_KEY) === '1'; } catch (e) { collapsed = false; }
-    tabsEl = el.querySelector('.rb-tabs');
-    bodyEl = el.querySelector('.rb-body');
-    tabsEl.addEventListener('click', (e) => {
-      const b = e.target.closest('[data-rb-tab]');
-      if (!b) return;
-      if (b.dataset.rbTab === activeKey && collapsed) { collapsed = false; savePref(); render(); return; }
-      activate(b.dataset.rbTab);
-    });
-    tabsEl.addEventListener('dblclick', (e) => {
-      if (!e.target.closest('[data-rb-tab]')) return;
-      collapsed = !collapsed; savePref(); render();
-    });
-    bodyEl.addEventListener('click', (e) => {
-      if (e.target.closest('.rb-collapse')) { collapsed = true; savePref(); render(); }
-    });
-    render();
-  }
-
-  function setSource(name, tabs, opts) {
-    sources[name] = tabs || [];
-    const ctx = (tabs || []).find(t => t.contextual);
-    if (opts && opts.focus && ctx) { activeKey = ctx.key; if (collapsed) { collapsed = false; savePref(); } }
-    render();
-    if (opts && opts.focus && ctx && ctx.onShow) ctx.onShow();
-  }
-
-  function onChange(fn) { listeners.push(fn); return () => { const i = listeners.indexOf(fn); if (i >= 0) listeners.splice(i, 1); }; }
-
-  return { init, setSource, activate, refresh: render, active: () => activeKey, onChange, big, small, kv };
-})();

js/core/skybox.js

@@ -161,32 +161,26 @@ window.Skybox = (() => {
   function createToggle(toolbar, onChange) {
     let m = getMode();
     const wrap = document.createElement('div');
-    wrap.className = 'view-filter';
-    wrap.innerHTML = `<button type="button" class="btn-3d-toggle vf-btn" title="Omgeving"></button>
-      <div class="vf-menu">${MODES.map(k => `<div class="vf-item vf-option" data-mode="${k}"><i class="bi bi-${LABELS[k][0]}"></i>${LABELS[k][1]}</div>`).join('')}</div>`;
+    wrap.className = 'tb-pop-wrap';
+    wrap.innerHTML = `<button type="button" class="tb-btn" title="Omgeving in 3D"></button>
+      <div class="tb-pop">${MODES.map(k => `<button type="button" class="pop-option" data-mode="${k}"><i class="bi bi-${LABELS[k][0]}"></i>${LABELS[k][1]}</button>`).join('')}</div>`;
     toolbar.appendChild(wrap);
-    const btn = wrap.querySelector('.vf-btn'), menu = wrap.querySelector('.vf-menu');
+    const btn = wrap.querySelector('.tb-btn'), menu = wrap.querySelector('.tb-pop');
+    const close = UI.popover(btn, menu);
     const sync = () => {
-      btn.innerHTML = `<i class="bi bi-${LABELS[m][0]}"></i>${LABELS[m][1]}<i class="bi bi-chevron-down"></i>`;
-      menu.querySelectorAll('.vf-option').forEach(o => o.classList.toggle('active', o.dataset.mode === m));
+      btn.innerHTML = `<i class="bi bi-${LABELS[m][0]}"></i><span>${LABELS[m][1]}</span><i class="bi bi-chevron-down tb-caret"></i>`;
+      menu.querySelectorAll('.pop-option').forEach(o => o.classList.toggle('active', o.dataset.mode === m));
     };
-    btn.addEventListener('click', (e) => { e.stopPropagation(); menu.classList.toggle('open'); });
     menu.addEventListener('click', (e) => {
-      e.stopPropagation();
-      const opt = e.target.closest('.vf-option');
+      const opt = e.target.closest('.pop-option');
       if (!opt) return;
-      menu.classList.remove('open');
+      close();
       if (opt.dataset.mode === m) return;
       m = opt.dataset.mode;
       remember(m);
       sync();
       onChange(m);
     });
-    const closeOnOutside = () => {
-      if (!document.body.contains(wrap)) { document.removeEventListener('click', closeOnOutside); return; }
-      menu.classList.remove('open');
-    };
-    document.addEventListener('click', closeOnOutside);
     sync();
     return wrap;
   }

js/core/ui-kit.js

@@ -80,8 +80,10 @@ window.UI = (() => {
   const info = (text) => `<div class="ui-info">${icon('info-circle')}<span>${text}</span></div>`;
   const warn = (text) => `<div class="ui-warn">${icon('exclamation-triangle')}<span>${text}</span></div>`;
   const grid = (...cols) => `<div class="ui-grid">${cols.map(c => `<div>${c}</div>`).join('')}</div>`;
-  const button = (label, iconName, attrs, cls) =>
-    `<button type="button" class="ui-btn${cls ? ' ' + cls : ''}" ${attrs || ''}>${iconName ? icon(iconName) : ''}<span>${label}</span></button>`;
+  // Eén knopbouwer; base = de knopsoort (ui-btn, tb-btn, ins-btn …), cls = extra klassen.
+  const btnOf = (base) => (label, iconName, attrs, cls) =>
+    `<button type="button" class="${base}${cls ? ' ' + cls : ''}" ${attrs || ''}>${iconName ? icon(iconName) : ''}${label ? `<span>${label}</span>` : ''}</button>`;
+  const button = btnOf('ui-btn');
   const actions = (...btns) => `<div class="ui-actions">${btns.join('')}</div>`;
 
   const activeTabs = {};
@@ -128,16 +130,79 @@ window.UI = (() => {
     if (el) el.addEventListener('change', (e) => { fn(e.target.checked); after && after(); });
   }
 
-  function cycle3D(el) {
-    el.classList.remove('fullscreen-2d');
-    if (!el.classList.contains('fullscreen-3d')) el.classList.add('fullscreen-3d');
-    else if (!el.classList.contains('render-only')) el.classList.add('render-only');
-    else el.classList.remove('fullscreen-3d', 'render-only');
-  }
-  function toggle2D(el) {
-    el.classList.remove('fullscreen-3d', 'render-only');
-    el.classList.toggle('fullscreen-2d');
+  // Weergave van een editor: klassen fullscreen-2d/-3d op het editor-element (de looptocht bewaart en herstelt className).
+  const VIEWS = [
+    { key: 'split', icon: 'layout-split', label: '2D + 3D', key1: '1' },
+    { key: '2d', icon: 'square', label: 'Alleen 2D', key1: '2' },
+    { key: '3d', icon: 'box', label: 'Alleen 3D', key1: '3' }
+  ];
+  const viewOf = (el) => el.classList.contains('fullscreen-3d') ? '3d' : el.classList.contains('fullscreen-2d') ? '2d' : 'split';
+  function setView(el, mode) {
+    el.classList.toggle('fullscreen-3d', mode === '3d');
+    el.classList.toggle('fullscreen-2d', mode === '2d');
+    el.classList.remove('render-only');
+    el.querySelectorAll('[data-view]').forEach(b => b.classList.toggle('active', b.dataset.view === mode));
   }
 
-  return { esc, icon, hint, num, range, onRange, setRange, sel, toggle, color, onColor, text, onText, section, info, warn, grid, button, actions, tabs, wireTabs, specCard, onNum, onSel, onToggle, cycle3D, toggle2D };
+  const tb = btnOf('tb-btn');
+  const tbSep = () => '<span class="tb-sep"></span>';
+  const viewSeg = (mode) => `<div class="tb-seg" role="group" aria-label="Weergave">${VIEWS.map(v =>
+    tb('', v.icon, `data-view="${v.key}" title="${v.label} (${v.key1})"`, v.key === mode ? 'active' : '')).join('')}</div>`;
+
+  // Werkbalk van een editor: [left] … [Lagen, Omgeving] [after] | [2D + 3D, 2D, 3D]. Gedeeld door woning, wand en vloer.
+  // o: left/after (html), onResize, layers (opties voor ViewLayers.createMenu), onSky, beforeView(mode).
+  function editorBar(toolbar, root, o) {
+    toolbar.innerHTML = `${o.left || ''}<div class="tb-spacer"></div><div class="tb-group tb-view"></div>${o.after || ''}${tbSep()}${viewSeg(viewOf(root))}`;
+    const group = toolbar.querySelector('.tb-view');
+    if (o.layers) ViewLayers.createMenu(group, o.layers);
+    if (o.onSky) Skybox.createToggle(group, o.onSky);
+    const bar = {
+      setView(mode) {
+        if (o.beforeView) o.beforeView(mode);
+        setView(root, mode);
+        requestAnimationFrame(o.onResize);
+      },
+      viewState: () => ({ view: viewOf(root) })
+    };
+    toolbar.querySelectorAll('[data-view]').forEach(b => b.addEventListener('click', () => bar.setView(b.dataset.view)));
+    return bar;
+  }
+
+  // Eén uitklapper tegelijk (popover of menu): wie opent, sluit de vorige. claim bij openen, release bij sluiten.
+  let openPop = null;
+  function claim(close) { if (openPop && openPop !== close) openPop(); openPop = close; }
+  function release(close) { if (openPop === close) openPop = null; }
+  const closePopovers = () => { if (openPop) { openPop(); return true; } return false; };
+  document.addEventListener('click', () => closePopovers());
+
+  // Uitklappaneel onder een knop; sluit bij klik buiten, Esc of een andere uitklapper.
+  function popover(btn, panel) {
+    const close = () => { panel.classList.remove('open'); btn.classList.remove('open'); release(close); };
+    btn.addEventListener('click', (e) => {
+      e.stopPropagation();
+      if (panel.classList.contains('open')) { close(); return; }
+      claim(close);
+      panel.classList.add('open');
+      btn.classList.add('open');
+    });
+    panel.addEventListener('click', (e) => e.stopPropagation());
+    return close;
+  }
+
+  // Kaarten verdelen over kolommen van min. minW breed; telkens in de kortste kolom. Opnieuw aanroepen bij een andere breedte.
+  function masonry(el, minW, gap) {
+    if (!el) return;
+    gap = gap === undefined ? 12 : gap;
+    const cards = el._cards || (el._cards = [...el.children]);
+    const n = Math.max(1, Math.floor((el.clientWidth + gap) / (minW + gap)));
+    if (el._cols === n) return;
+    el._cols = n;
+    el.classList.add('ui-masonry');
+    const cols = Array.from({ length: n }, () => { const c = document.createElement('div'); c.className = 'ui-masonry-col'; return c; });
+    el.replaceChildren(...cols);
+    cards.forEach(card => cols.reduce((a, b) => b.offsetHeight < a.offsetHeight ? b : a).appendChild(card));
+  }
+
+  return { esc, icon, hint, num, range, onRange, setRange, sel, toggle, color, onColor, text, onText, section, info, warn, grid, button, actions, tabs, wireTabs, specCard, onNum, onSel, onToggle, btnOf,
+    VIEWS, viewOf, setView, tb, tbSep, viewSeg, editorBar, popover, claim, release, closePopovers, masonry };
 })();

js/core/view-filter.js

@@ -1,43 +0,0 @@
-/*!
- * Tectum
- * Copyright © 2026 Machiel Heinen.
- * Alle rechten voorbehouden. Gebruik uitsluitend met schriftelijke toestemming.
- * Zie LICENTIE.md.
- */
-
-function createViewFilter(toolbar, items, onChange) {
-  const state = {};
-  items.forEach(it => { state[it.key] = it.checked !== false; });
-
-  const wrap = document.createElement('div');
-  wrap.className = 'view-filter';
-  wrap.innerHTML = `
-    <button type="button" class="btn-3d-toggle vf-btn"><i class="bi bi-eye"></i>Weergave<i class="bi bi-chevron-down"></i></button>
-    <div class="vf-menu">
-      ${items.map(it => `<label class="vf-item"><input type="checkbox" data-key="${it.key}" ${state[it.key] ? 'checked' : ''}> ${it.label}</label>`).join('')}
-    </div>`;
-  toolbar.insertBefore(wrap, toolbar.firstChild);
-
-  const menu = wrap.querySelector('.vf-menu');
-  const btn = wrap.querySelector('.vf-btn');
-  btn.addEventListener('click', (e) => {
-    e.stopPropagation();
-    menu.classList.toggle('open');
-    btn.classList.toggle('active', menu.classList.contains('open'));
-  });
-  menu.addEventListener('click', (e) => e.stopPropagation());
-  menu.addEventListener('change', (e) => {
-    const key = e.target.dataset.key;
-    if (!key) return;
-    state[key] = e.target.checked;
-    onChange(Object.assign({}, state));
-  });
-  const closeOnOutside = () => {
-    if (!document.body.contains(wrap)) { document.removeEventListener('click', closeOnOutside); return; }
-    menu.classList.remove('open');
-    btn.classList.remove('active');
-  };
-  document.addEventListener('click', closeOnOutside);
-
-  return { state: () => Object.assign({}, state) };
-}

js/core/view-layers.js

@@ -0,0 +1,115 @@
+/*!
+ * Tectum
+ * Copyright © 2026 Machiel Heinen.
+ * Alle rechten voorbehouden. Gebruik uitsluitend met schriftelijke toestemming.
+ * Zie LICENTIE.md.
+ */
+
+window.ViewLayers = (() => {
+  // phase: bouwvolgorde voor de snelkeuze "Fase" (en IFC); lagen zonder phase blijven daarbij aan.
+  const LIST = [
+    { key: 'regelwerk', label: 'Regelwerk', icon: 'grid-3x3', phase: 0, hint: 'Vloer-, wand- en dakbalken, stalen nokbalk' },
+    { key: 'elektra', label: 'Elektra', icon: 'lightning-charge', phase: 1, hint: 'Meterkast, buizen, dozen, schakelaars en wcd\'s' },
+    { key: 'beplating', label: 'Beplating', icon: 'square', phase: 2, hint: 'Spaanplaat binnen, OSB vloer, plafond en dakbeschot, cementplaat buiten' },
+    { key: 'doek', label: 'Vochtdoek', icon: 'droplet', phase: 3, hint: 'Vochtdoek op de buitenzijde' },
+    { key: 'latwerk', label: 'Latwerk', icon: 'distribute-vertical', phase: 4, hint: 'Kruislat en trasraamplaat' },
+    { key: 'gevel', label: 'Gevelbekleding', icon: 'bricks', phase: 5, hint: 'Rabat, felsplaten, steenstrips, stuc, schoorsteen, sandwichpanelen' },
+    { key: 'kozijnen', label: 'Kozijnen', icon: 'window', phase: 5, hint: 'Kozijnen, deuren en glas' },
+    { key: 'dakbedekking', label: 'Dakbedekking', icon: 'house-up', phase: 5, hint: 'Dakleer of riet' },
+    { key: 'afwerking', label: 'Afwerking', icon: 'brush', phase: 6, hint: 'Vloerafwerking, verf, plafond, dakrand, dagkanten, logobord' },
+    { key: 'lampen', label: 'Verlichting', icon: 'lightbulb', phase: 6, hint: 'Gevellampen, spots en binnenverlichting' },
+    { key: 'inrichting', label: 'Inrichting', icon: 'lamp', phase: 6, hint: 'Sanitair, keuken, kasten, bed, zithoek' },
+    { key: 'ruimtes', label: 'Ruimtes', icon: 'bounding-box', phase: 6, hint: 'Ruimtes met functie, vloer en wandpanelen' },
+    { key: 'dak', label: 'Dak', icon: 'house', hint: 'Het hele dak met dakrand, overkapping en palen; uit om van boven in de woning te kijken' },
+    { key: 'maten', label: 'Maten', icon: 'rulers', hint: 'Maatvoering in de plattegrond' }
+  ];
+  const KEYS = LIST.map(l => l.key);
+  const PHASES = ['Regelwerk', 'Elektra', 'Beplating', 'Vochtdoek', 'Latwerk', 'Gevel & dak', 'Afgewerkt'];
+
+  const all = () => Object.fromEntries(KEYS.map(k => [k, true]));
+  const normalize = (layers) => Object.fromEntries(KEYS.map(k => [k, !layers || layers[k] !== false]));
+  const shows = (layers, key) => !layers || layers[key] !== false;
+  // Alles tot en met een bouwfase (0..6), zoals de vroegere bouwfase-schuif.
+  const upTo = (phase) => Object.fromEntries(LIST.map(l => [l.key, l.phase === undefined || l.phase <= phase]));
+  const phaseOf = (layers) => PHASES.findIndex((_, p) => LIST.every(l => l.phase === undefined || (l.phase <= p) === shows(layers, l.key)));
+
+  // Verbergt meshes met een van de materialen (ook afgeleide met userData.base), bijv. het regelwerk.
+  function hideByMaterial(group, materials) {
+    if (!group) return;
+    const set = new Set(materials.filter(Boolean));
+    group.traverse(o => {
+      if (!o.isMesh) return;
+      const m0 = Array.isArray(o.material) ? o.material[0] : o.material;
+      if (m0 && (set.has(m0) || set.has(m0.userData && m0.userData.base))) o.visible = false;
+    });
+  }
+
+  const GROUPS = [
+    ['Casco', ['regelwerk', 'elektra', 'beplating', 'doek', 'latwerk']],
+    ['Buiten', ['gevel', 'kozijnen', 'dakbedekking', 'dak']],
+    ['Binnen', ['afwerking', 'lampen', 'inrichting', 'ruimtes']],
+    ['Plattegrond', ['maten']]
+  ];
+
+  // De enige plek voor zichtbaarheid: knop "Lagen" in de werkbalk met een uitklappaneel.
+  // keys beperkt de lagen (wand-editor); extras zijn editor-eigen schakelaars, bijv. beplating binnen/buiten.
+  function createMenu(toolbar, o) {
+    const items = o.keys ? LIST.filter(l => o.keys.includes(l.key)) : LIST;
+    const extras = o.extras || [];
+    const extra = Object.fromEntries(extras.map(x => [x.key, x.checked !== false]));
+    const check = (attr, key, label, hint, ic) =>
+      `<label class="pop-check" title="${hint || ''}"><input type="checkbox" ${attr}="${key}">${ic ? `<i class="bi bi-${ic}"></i>` : ''}<span>${label}</span></label>`;
+    const wrap = document.createElement('div');
+    wrap.className = 'tb-pop-wrap';
+    wrap.innerHTML = `<button type="button" class="tb-btn" title="Zichtbaarheid van lagen in 2D en 3D"><i class="bi bi-layers"></i><span>Lagen</span><i class="bi bi-chevron-down tb-caret"></i></button>
+      <div class="tb-pop pop-layers">
+        ${items.length ? `<div class="pop-row">
+          <select class="pop-phase" title="Alles tot en met een bouwfase; Dak en Maten blijven zoals ze staan">
+            <option value="">Bouwfase…</option>${PHASES.map((p, i) => `<option value="${i}">${i + 1}. ${p}</option>`).join('')}
+          </select>
+          <button type="button" class="ui-btn" data-all>Alles</button>
+        </div>
+        <div class="pop-groups">${GROUPS.map(([label, keys]) => {
+          const g = items.filter(l => keys.includes(l.key));
+          return g.length ? `<div class="pop-group"><div class="pop-head">${label}</div>${g.map(l => check('data-layer', l.key, l.label, l.hint, l.icon)).join('')}</div>` : '';
+        }).join('')}</div>` : ''}
+        ${extras.length ? `<div class="pop-group"><div class="pop-head">${o.extrasLabel || 'Weergave'}</div>${extras.map(x => check('data-extra', x.key, x.label, x.hint)).join('')}</div>` : ''}
+      </div>`;
+    toolbar.appendChild(wrap);
+    const btn = wrap.querySelector('.tb-btn'), panel = wrap.querySelector('.tb-pop');
+    UI.popover(btn, panel);
+    let cur = normalize(o.layers);
+    const sel = panel.querySelector('.pop-phase');
+    const sync = () => {
+      panel.querySelectorAll('[data-layer]').forEach(c => { c.checked = cur[c.dataset.layer]; });
+      panel.querySelectorAll('[data-extra]').forEach(c => { c.checked = extra[c.dataset.extra]; });
+      if (sel) { const p = phaseOf(cur); sel.value = p >= 0 ? String(p) : ''; }
+      const hidden = items.some(l => !cur[l.key]) || extras.some(x => !extra[x.key]);
+      btn.classList.toggle('flag', hidden);
+    };
+    const emit = () => { sync(); o.onChange && o.onChange(Object.assign({}, cur)); };
+    panel.addEventListener('change', (e) => {
+      const t = e.target;
+      if (t.dataset.layer) { cur = Object.assign({}, cur, { [t.dataset.layer]: t.checked }); emit(); }
+      else if (t.dataset.extra) { extra[t.dataset.extra] = t.checked; sync(); o.onExtra && o.onExtra(Object.assign({}, extra)); }
+      else if (t === sel && sel.value !== '') {
+        const keep = Object.fromEntries(LIST.filter(l => l.phase === undefined).map(l => [l.key, cur[l.key]]));
+        cur = Object.assign(upTo(Number(sel.value)), keep);
+        emit();
+      }
+    });
+    // Alles = ook de editor-eigen schakelaars weer aan.
+    const all = panel.querySelector('[data-all]');
+    if (all) all.addEventListener('click', () => {
+      const extraOff = extras.some(x => !extra[x.key]);
+      extras.forEach(x => { extra[x.key] = true; });
+      cur = ViewLayers.all();
+      emit();
+      if (extraOff && o.onExtra) o.onExtra(Object.assign({}, extra));
+    });
+    sync();
+    return { el: wrap, set: (l) => { cur = normalize(l); sync(); } };
+  }
+
+  return { LIST, KEYS, PHASES, GROUPS, all, normalize, shows, upTo, phaseOf, hideByMaterial, createMenu };
+})();

js/cost/cost-defaults.js

@@ -95,7 +95,11 @@ window.COST_DEFAULTS = {
       steenM2: { label: 'Steenstrips (gevel + trasraam)', unit: '€/m²', value: 60 },
       steenMontage: { label: 'Montage steenstrips', unit: 's/m²', value: 1800 },
       stucM2: { label: 'Stucwerk gevel (wapening + sierpleister op cementgebonden plaat)', unit: '€/m²', value: 45 },
-      stucMontage: { label: 'Stucwerk aanbrengen (wapenen, pleisteren)', unit: 's/m²', value: 1500 }
+      stucMontage: { label: 'Stucwerk aanbrengen (wapenen, pleisteren)', unit: 's/m²', value: 1500 },
+      felsM2: { label: 'Felsplaten gevel, staande naad (staal, klangen, ondergrond)', unit: '€/m²', value: 70 },
+      felsMontage: { label: 'Montage felsplaten gevel (ook dagkanten en hoeken)', unit: 's/m²', value: 2100 },
+      afdekkerM: { label: 'Afdekker trasraam (aluminium zetwerk, gepoedercoat)', unit: '€/m', value: 14 },
+      afdekkerMontage: { label: 'Montage afdekker trasraam', unit: 's/m', value: 300 }
     }
   },
 
@@ -116,6 +120,8 @@ window.COST_DEFAULTS = {
       onderplaatMontage: { label: 'Montage onderplaat', unit: 's/m²', value: 900 },
       daktrimM: { label: 'Daktrim', unit: '€/m', value: 12 },
       daktrimMontage: { label: 'Montage daktrim', unit: 's/m', value: 300 },
+      ventRoosterM: { label: 'Ventilatierooster onder boeideel (40 mm, aluminium)', unit: '€/m', value: 6 },
+      ventRoosterMontage: { label: 'Montage ventilatierooster', unit: 's/m', value: 120 },
       staalKg: { label: 'Stalen nokbalk IPE S235 (op maat gezaagd, geboord, gegrond)', unit: '€/kg', value: 2.9 },
       nokOplegging: { label: 'Oplegging nokbalk (stalen schoen + bouten), 2 per balk', unit: '€/st.', value: 45 },
       nokPlaatsen: { label: 'Stalen nokbalk plaatsen, stellen en vastzetten', unit: 's', value: 2700 },
@@ -123,7 +129,9 @@ window.COST_DEFAULTS = {
       nokPersoneel: { label: 'Personeel bij plaatsen nokbalk (i.p.v. de bezetting)', unit: 'man', value: 3 },
       paalHoutM3: { label: 'Paalhout overkapping (eiken, geschaafd)', unit: '€/m³', value: 2400 },
       paalvoet: { label: 'Paalvoet verzinkt, verstelbaar (incl. ankers)', unit: '€/st.', value: 40 },
-      paalMontage: { label: 'Paal plaatsen: stellen, aftoppen, vastzetten aan het dak', unit: 's/st.', value: 2700 }
+      paalMontage: { label: 'Paal plaatsen: stellen, aftoppen, vastzetten aan het dak', unit: 's/st.', value: 2700 },
+      zijwandM2: { label: 'Zijwand overkapping (regelwerk, cementgebonden plaat en stuc aan beide kanten, fundering)', unit: '€/m²', value: 140 },
+      zijwandMontage: { label: 'Zijwand overkapping maken en plaatsen', unit: 's/m²', value: 5400 }
     }
   },
 

js/cost/cost-model.js

@@ -155,8 +155,12 @@ window.CostModel = (() => {
       add(el, 'Gevel', 'Gevel', `Vochtdoek (${fmtM(doekM)} m¹ wand)`, doek, 'm²', doek * G.vochtdoekM2, doekM * G.vochtdoekMontageM);
       const rabat = p.buitenMateriaal === 'vochtdoek' ? (st.rabatAreaM2 || 0) : 0;
       add(el, 'Gevel', 'Gevel', 'Rabat', rabat, 'm²', rabat * G.rabatM2, rabat * G.rabatMontage);
+      const fels = p.buitenMateriaal === 'vochtdoek' ? (st.felsAreaM2 || 0) : 0;
+      add(el, 'Gevel', 'Gevel', 'Felsplaten (staande naad)', fels, 'm²', fels * (G.felsM2 || 0), fels * (G.felsMontage || 0));
       const steen = (st.stoneAreaM2 || 0) + (st.trasraamStoneAreaM2 || 0);
       add(el, 'Gevel', 'Gevel', 'Steenstrips', steen, 'm²', steen * G.steenM2, steen * G.steenMontage);
+      const cap = (st.trasraamCapM || 0);
+      add(el, 'Gevel', 'Gevel', 'Afdekker trasraam', cap, 'm', cap * (G.afdekkerM || 0), cap * (G.afdekkerMontage || 0));
       const stuc = st.stucAreaM2 || 0;
       add(el, 'Gevel', 'Gevel', 'Stucwerk', stuc, 'm²', stuc * (G.stucM2 || 0), stuc * (G.stucMontage || 0));
       const latM = st.battenLengthM || 0;
@@ -237,11 +241,17 @@ window.CostModel = (() => {
       add(wo, 'Dak', 'Dak', `Boeideel ${e.fasciaHeight} mm`, e.fasciaLengthM, 'm', e.fasciaLengthM * D.boeideelM, e.fasciaLengthM * D.boeideelMontage);
       add(wo, 'Dak', 'Dak', 'Onderplaat boeideel', e.soffitM2, 'm²', e.soffitM2 * D.onderplaatM2, e.soffitM2 * D.onderplaatMontage);
       add(wo, 'Dak', 'Dak', `Daktrim ${e.trimHeight} mm`, e.trimLengthM, 'm', e.trimLengthM * D.daktrimM, e.trimLengthM * D.daktrimMontage);
+      add(wo, 'Dak', 'Dak', 'Ventilatierooster onder boeideel', e.ventLengthM || 0, 'm', (e.ventLengthM || 0) * (D.ventRoosterM || 0), (e.ventLengthM || 0) * (D.ventRoosterMontage || 0));
     }
     if (totals.posts) {
       const pp = totals.posts;
       add(wo, 'Hout', 'Dak', `${pp.wood} palen ${pp.size}×${pp.size} mm (${pp.count} st.)`, pp.lengthM, 'm', pp.m3 * D.paalHoutM3, pp.count * D.paalMontage);
       add(wo, 'Staal', 'Dak', 'Paalvoeten', pp.count, 'st.', pp.count * D.paalvoet, 0);
+      add(wo, 'Gevel', 'Dak', `Zijwand overkapping (${pp.walls || 0} st.)`, pp.wallM2 || 0, 'm²', (pp.wallM2 || 0) * (D.zijwandM2 || 0), (pp.wallM2 || 0) * (D.zijwandMontage || 0));
+      // Buitenkant zoals de gevel ernaast (stuc zit al in de zijwand).
+      const G = S.gevel, oo = pp.outsideM2 || {};
+      [['fels', 'felsplaten', G.felsM2, G.felsMontage], ['rabat', 'rabat', G.rabatM2, G.rabatMontage], ['steen', 'steenstrips', G.steenM2, G.steenMontage]].forEach(([k, label, m2, sec]) =>
+        add(wo, 'Gevel', 'Gevel', `Zijwand overkapping buitenzijde ${label}`, oo[k] || 0, 'm²', (oo[k] || 0) * (m2 || 0), (oo[k] || 0) * (sec || 0)));
     }
     if (parts.sandwich) {
       const sw = parts.sandwich;

js/cost/cost-settings.js

@@ -24,13 +24,13 @@ window.CostSettings = (() => {
         <div class="cs-body"></div>
         <div class="material-info">Bedragen excl. btw. De CSV's in kosten/ zijn leidend: Toepassen geldt tot herladen; om een wijziging te houden "intern.csv downloaden" en het bestand in kosten/ vervangen, of met "Wijzigingen downloaden" alleen de aangepaste velden (met de standaardwaarde ernaast) opslaan. Prijzen pas je aan in leveranciers.csv (CSV = daaruit, anders noodwaarde). Een veld dat afwijkt van intern.csv is gemarkeerd.</div>
         <div class="modal-footer">
-          <button type="button" class="io-btn" data-cs="reset">Standaard</button>
-          <button type="button" class="io-btn" data-cs="export">intern.csv downloaden</button>
-          <button type="button" class="io-btn" data-cs="export-changes" title="Alleen de velden die afwijken van intern.csv">Wijzigingen downloaden</button>
-          <button type="button" class="io-btn" data-cs="import">Importeren&hellip;</button>
+          <button type="button" class="ui-btn" data-cs="reset">Standaard</button>
+          <button type="button" class="ui-btn" data-cs="export">intern.csv downloaden</button>
+          <button type="button" class="ui-btn" data-cs="export-changes" title="Alleen de velden die afwijken van intern.csv">Wijzigingen downloaden</button>
+          <button type="button" class="ui-btn" data-cs="import">Importeren&hellip;</button>
           <span style="flex:1"></span>
-          <button type="button" class="io-btn" data-cs="cancel">Annuleren</button>
-          <button type="button" class="material-toggle-btn active" data-cs="save" style="flex:none; padding:6px 18px;">Toepassen</button>
+          <button type="button" class="ui-btn" data-cs="cancel" data-esc>Annuleren</button>
+          <button type="button" class="ui-btn ui-btn-primary" data-cs="save">Toepassen</button>
         </div>
         <input type="file" data-file="import" accept=".csv,.json,text/csv,application/json,text/plain" style="display:none">
         <input type="file" data-file="leveranciers" accept=".csv,text/csv,text/plain" style="display:none">

js/elektra/elektra-model.js

@@ -143,9 +143,68 @@ window.ElektraModel = (() => {
     return null;
   }
 
-  function makeRouter(units) {
+  // Gaat het stuk p→q (wereld, mm) door een raam of deur? Een wand telt over zijn dikte plus 5 mm, de opening 1 mm
+  // kleiner: een buis naast de opening of erboven/eronder mag.
+  function makeOpeningTest(units, interior) {
+    const pieces = [];
+    units.forEach(u => u.walls.forEach(w => w.pieces.forEach(p => { if (p.config.openings.length) pieces.push(p); })));
+    interior.forEach(p => { if (p.config.openings.length) pieces.push(p); });
+    const clip = (r, a, b, lo, hi) => {
+      const d = b - a;
+      if (Math.abs(d) < 1e-9) return a > lo && a < hi ? r : null;
+      let t0 = (lo - a) / d, t1 = (hi - a) / d;
+      if (t0 > t1) [t0, t1] = [t1, t0];
+      return Math.max(r[0], t0) < Math.min(r[1], t1) ? [Math.max(r[0], t0), Math.min(r[1], t1)] : null;
+    };
+    return (p, q) => pieces.some(pc => {
+      const pl = pc.place, c = Math.cos(pl.rotY), s = Math.sin(pl.rotY), half = pl.thickness / 2 + 5;
+      const loc = (v) => { const dx = v.x - pl.cx, dz = v.z - pl.cz; return { u: dx * c - dz * s + pl.width / 2, n: dx * s + dz * c, y: v.y - pl.floorTop }; };
+      const A = loc(p), B = loc(q);
+      const inWall = clip([0, 1], A.n, B.n, -half, half);
+      return !!inWall && pc.config.openings.some(op => {
+        let r = clip(inWall, A.u, B.u, op.x + 1, op.x + op.w - 1);
+        r = r && clip(r, A.y, B.y, op.y + 1, WallModel.openingTopMax(op) - 1);
+        if (!r) return false;
+        // Schuine bovenkant: alleen onder de daklijn van de opening.
+        return [0, 0.25, 0.5, 0.75, 1].some(k => {
+          const t = r[0] + (r[1] - r[0]) * k, u = A.u + (B.u - A.u) * t, y = A.y + (B.y - A.y) * t;
+          return y < WallModel.openingTopAt(op, u) - 1;
+        });
+      });
+    });
+  }
+
+  // rooms: leidingen lopen boven een vals plafond, niet tegen de onderkant van een hoog dak.
+  // blocked(p, q): het stuk gaat door een wandopening (makeOpeningTest).
+  function makeRouter(units, rooms, blocked) {
     const unitAt = (x, z) => units.find(u => x >= u.rect.x0 - 1 && x <= u.rect.x1 + 1 && z >= u.rect.z0 - 1 && z <= u.rect.z1 + 1) || null;
-    const ceilAt = (x, z) => {
+    // Vals plafond (mm boven vloer) van de ruimte op (x,z): undefined = in een wand of naad (geen gebied), null = geen
+    // vals plafond (ook een gebied zonder functie: niet het plafond van de buurruimte door de wand heen overnemen).
+    const roomPlenum = (x, z) => {
+      if (!rooms || !rooms.roomAt) return undefined;
+      const r = rooms.roomAt(x, z);
+      if (r) return r.ceilingActive ? r.ceiling : null;
+      return rooms.regionAt && rooms.regionAt(x, z) ? null : undefined;
+    };
+    // Absoluut; in een binnenwand het laagste valse plafond ernaast: de leiding gaat daar door de wand, niet omhoog.
+    const plenumAt = (x, z) => {
+      const u = unitAt(x, z);
+      if (!u) return null;
+      let v = roomPlenum(x, z);
+      if (v === undefined) {
+        v = null;
+        [[1, 0], [-1, 0], [0, 1], [0, -1]].forEach(([dx, dz]) => {
+          for (const d of [60, 120, 200, 300]) {
+            const o = roomPlenum(x + dx * d, z + dz * d);
+            if (o === undefined) continue;
+            if (o !== null) v = v === null ? o : Math.min(v, o);
+            break;
+          }
+        });
+      }
+      return v === null ? null : u.layout.floorTop + v;
+    };
+    const roofCeilAt = (x, z) => {
       let u = unitAt(x, z);
       if (!u) u = units.reduce((best, c) => {
         const dx = Math.max(c.rect.x0 - x, 0, x - c.rect.x1), dz = Math.max(c.rect.z0 - z, 0, z - c.rect.z1);
@@ -155,24 +214,159 @@ window.ElektraModel = (() => {
       const r = u.rect;
       return u.roof.ceilingAt(Math.max(r.x0 + 1, Math.min(r.x1 - 1, x)), Math.max(r.z0 + 1, Math.min(r.z1 - 1, z)));
     };
+    // Leidingvlak: het valse plafond waar dat lager ligt dan het dak, anders de onderkant van het dak.
+    const plenumOn = (x, z) => { const v = plenumAt(x, z); return v !== null && v < roofCeilAt(x, z) - 1 ? v : null; };
+    const ceilAt = (x, z) => { const v = plenumOn(x, z); return v !== null ? v : roofCeilAt(x, z); };
+    const inPlenum = (x, z, y) => y < roofCeilAt(x, z) - 50;
+    // Over het plafond het vlak volgen: knikken in het dak (nok, kil) als tussenpunt, de overgang vals plafond/dak
+    // verticaal op de grens (in de wand), zodat de buis nooit los door de ruimte of buiten het dak loopt.
+    function followCeiling(pts) {
+      const same = (u, v) => (u === null && v === null) || (u !== null && v !== null && Math.abs(u - v) < 1);
+      const out = [pts[0]];
+      pts.slice(1).forEach((q, i) => {
+        const p = pts[i], len = Math.hypot(q.x - p.x, q.z - p.z);
+        if (p.ceil && q.ceil && !p.floor && !q.floor && len > 1) {
+          const at = (t) => ({ x: p.x + (q.x - p.x) * t, z: p.z + (q.z - p.z) * t });
+          const hOf = (pt, st) => st !== null ? st : roofCeilAt(pt.x, pt.z);
+          const mk = (pt, y) => Object.assign({}, p, pt, { y, wall: null, ceil: true, floor: false, plenum: inPlenum(pt.x, pt.z, y) });
+          const n = Math.max(2, Math.ceil(len / 100));
+          // Begin/eind op een wandvlak 50 mm de ruimte in meten, net als top(): anders telt de buurruimte achter de wand mee.
+          const probe = (pt, e) => e.wall && e.wall.n ? { x: pt.x + e.wall.n.x * 50, z: pt.z + e.wall.n.z * 50 } : pt;
+          const S = Array.from({ length: n + 1 }, (_, k) => {
+            const pt = at(k / n), pr = k === 0 ? probe(pt, p) : k === n ? probe(pt, q) : pt, st = plenumOn(pr.x, pr.z);
+            return { t: k / n, pt, st, y: hOf(pt, st) };
+          });
+          for (let k = 1; k <= n; k++) {
+            const A = S[k - 1], B = S[k];
+            if (!same(A.st, B.st)) {
+              let lo = A.t, hi = B.t;
+              for (let it = 0; it < 10; it++) { const m = (lo + hi) / 2, pm = at(m); if (same(plenumOn(pm.x, pm.z), A.st)) lo = m; else hi = m; }
+              const pb = at((lo + hi) / 2);
+              out.push(mk(pb, hOf(pb, A.st)), mk(pb, hOf(pb, B.st)));
+            } else if (k < n && same(B.st, S[k + 1].st) && Math.abs(A.y - 2 * B.y + S[k + 1].y) > 2) out.push(mk(B.pt, B.y));
+          }
+        }
+        out.push(q);
+      });
+      return out;
+    }
     const floorAt = (x, z) => { const u = unitAt(x, z) || units[0]; return u.layout.floorTop; };
+    const clampTo = (v, lo, hi) => lo > hi ? (lo + hi) / 2 : Math.max(lo, Math.min(hi, v));
+    const segInside = (p, q) => {
+      const n = Math.max(1, Math.ceil(Math.hypot(q.x - p.x, q.z - p.z) / 50));
+      for (let k = 0; k <= n; k++) if (!unitAt(p.x + (q.x - p.x) * k / n, p.z + (q.z - p.z) * k / n)) return false;
+      return true;
+    };
+    // Punt buiten de woning (gevellamp, dakrandspot): eerst loodrecht naar de dichtstbijzijnde unit.
+    const clampIn = (p) => {
+      if (unitAt(p.x, p.z)) return null;
+      let best = null;
+      units.forEach(u => {
+        const r = u.rect, x = clampTo(p.x, r.x0 + 1, r.x1 - 1), z = clampTo(p.z, r.z0 + 1, r.z1 - 1), d = Math.hypot(x - p.x, z - p.z);
+        if (!best || d < best.d) best = { x, z, d };
+      });
+      return best && { x: best.x, z: best.z };
+    };
+    // Knikpunten in de plattegrond tussen a en b (exclusief), haaks en binnen de units: bij een L- of T-vorm mag de
+    // knik niet in de lege hoek buiten de woning vallen. Eerst x dan z (zoals altijd), anders z dan x, anders via een unit.
+    function corners(a, b, viaCeiling) {
+      const A = clampIn(a), B = clampIn(b), pa = A || a, pb = B || b;
+      const cands = [[{ x: pb.x, z: pa.z }], [{ x: pa.x, z: pb.z }]];
+      units.forEach(u => {
+        const r = u.rect, xm = clampTo((pa.x + pb.x) / 2, r.x0 + 150, r.x1 - 150), zm = clampTo((pa.z + pb.z) / 2, r.z0 + 150, r.z1 - 150);
+        cands.push([{ x: xm, z: pa.z }, { x: xm, z: pb.z }], [{ x: pa.x, z: zm }, { x: pb.x, z: zm }]);
+      });
+      let best = null;
+      cands.forEach(c => {
+        const pts = [pa].concat(c, [pb]);
+        if (!pts.slice(1).every((q, i) => segInside(pts[i], q))) return;
+        let len = pts.slice(1).reduce((t, q, i) => t + Math.abs(q.x - pts[i].x) + Math.abs(q.z - pts[i].z), 0);
+        // Over het plafond telt op- en neergaan mee: liever door een laag vals plafond dan over de nok.
+        if (viaCeiling) pts.slice(1).forEach((q, i) => {
+          const p = pts[i], m = Math.max(1, Math.ceil(Math.hypot(q.x - p.x, q.z - p.z) / 200));
+          let prev = ceilAt(p.x, p.z);
+          for (let k = 1; k <= m; k++) { const y = ceilAt(p.x + (q.x - p.x) * k / m, p.z + (q.z - p.z) * k / m); len += Math.abs(y - prev); prev = y; }
+        });
+        if (!best || len < best.len - 1) best = { len, c };
+      });
+      return [A].concat(best ? best.c : cands[0], [B]).filter(Boolean)
+        .filter(q => Math.hypot(q.x - a.x, q.z - a.z) > 0.5 && Math.hypot(q.x - b.x, q.z - b.z) > 0.5);
+    }
+    const strictlyInside = (x, z) => units.some(u => x > u.rect.x0 + 5 && x < u.rect.x1 - 5 && z > u.rect.z0 + 5 && z < u.rect.z1 - 5);
+    const clear = (pts) => !blocked || pts.slice(1).every((q, i) => !blocked(pts[i], q));
+    // Wandpunt dat recht omhoog/omlaag door een raam of deur zou gaan (wcd onder een raam, meterkast onder een
+    // bovenlicht): eerst op dezelfde hoogte opzij tot naast de opening (stijl + 60 mm), de dichtstbijzijnde kant
+    // die vrij is. yTo(punt) = hoogte waar de leiding heen gaat. null = recht kan, of nergens plek.
+    function sidestep(p, yTo) {
+      const f = p.face;
+      if (!f || !blocked || !blocked(p, { x: p.x, y: yTo(p), z: p.z })) return null;
+      const y = p.y - f.piece.place.floorTop, u0 = uAt(f, p), lo = Math.min(y, yTo(p) - f.piece.place.floorTop);
+      const cands = [];
+      f.piece.config.openings.forEach(op => {
+        if (WallModel.openingTopMax(op) > lo) cands.push(op.x - f.sw - 60, op.x + op.w + f.sw + 60);
+      });
+      const pick = cands.filter(u => u > f.u0 + 50 && u < f.u1 - 50).sort((m, n) => Math.abs(m - u0) - Math.abs(n - u0)).find(u => {
+        const q = Object.assign({}, p, facePoint(f, u, y, 0));
+        return !blocked(p, q) && !blocked(q, { x: q.x, y: yTo(q), z: q.z });
+      });
+      return pick === undefined ? null : Object.assign({}, p, facePoint(f, pick, y, 0));
+    }
+    // Gevellamp naar gevellamp: langs de gevel (om de hoeken heen), nooit dwars door de woning.
+    function outside(a, b) {
+      const gap = (p) => Math.min(...units.map(u => Math.max(u.rect.x0 - p.x, 0, p.x - u.rect.x1) + Math.max(u.rect.z0 - p.z, 0, p.z - u.rect.z1)));
+      const d = Math.max(60, gap(a), gap(b));
+      const cands = [[{ x: b.x, z: a.z }], [{ x: a.x, z: b.z }]];
+      units.forEach(u => {
+        [u.rect.x0 - d, u.rect.x1 + d].forEach(x => cands.push([{ x, z: a.z }, { x, z: b.z }]));
+        [u.rect.z0 - d, u.rect.z1 + d].forEach(z => cands.push([{ x: a.x, z }, { x: b.x, z }]));
+      });
+      const free = (p, q) => {
+        const n = Math.max(1, Math.ceil(Math.hypot(q.x - p.x, q.z - p.z) / 50));
+        for (let k = 1; k < n; k++) if (strictlyInside(p.x + (q.x - p.x) * k / n, p.z + (q.z - p.z) * k / n)) return false;
+        return true;
+      };
+      let best = null;
+      cands.forEach(c => {
+        const pts = [a].concat(c, [b]);
+        if (!pts.slice(1).every((q, i) => free(pts[i], q))) return;
+        const len = pts.slice(1).reduce((t, q, i) => t + Math.abs(q.x - pts[i].x) + Math.abs(q.z - pts[i].z), 0);
+        if (!best || len < best.len - 1) best = { len, c };
+      });
+      return best ? best.c : [strictlyInside(b.x, a.z) ? { x: a.x, z: b.z } : { x: b.x, z: a.z }];
+    }
     function path(a, b) {
-      const P = (p, wall, ceil, floor) => ({ x: p.x, y: p.y, z: p.z, wall: wall || null, ceil: !!ceil, floor: !!floor });
+      const P = (p, wall, ceil, floor) => ({ x: p.x, y: p.y, z: p.z, wall: wall || null, ceil: !!ceil, floor: !!floor, plenum: !!ceil && inPlenum(p.x, p.z, p.y) });
       if (a.mount === 'vloer' || b.mount === 'vloer') {
         const fa = floorAt(a.x, a.z) - FLOOR_DEPTH, fb = floorAt(b.x, b.z) - FLOOR_DEPTH;
-        return [P(a, a.face, false, a.mount === 'vloer'), P({ x: a.x, y: fa, z: a.z }, a.face, false, true), P({ x: b.x, y: fa, z: a.z }, null, false, true),
-          P({ x: b.x, y: fb, z: b.z }, b.face, false, true), P(b, b.face, false, b.mount === 'vloer')];
+        const A2 = a.mount === 'vloer' ? null : sidestep(a, () => fa), B2 = b.mount === 'vloer' ? null : sidestep(b, () => fb);
+        const a2 = A2 || a, b2 = B2 || b;
+        return [P(a, a.face, false, a.mount === 'vloer')].concat(A2 ? [P(A2, a.face)] : [], [P({ x: a2.x, y: fa, z: a2.z }, a.face, false, true)])
+          .concat(corners(a2, b2).map(c => P({ x: c.x, y: fa, z: c.z }, null, false, true)),
+            [P({ x: b2.x, y: fb, z: b2.z }, b.face, false, true)], B2 ? [P(B2, b.face)] : [], [P(b, b.face, false, b.mount === 'vloer')]);
       }
-      if (a.face && a.face === b.face) return [P(a, a.face), P({ x: a.x, y: b.y, z: a.z }, a.face), P(b, b.face)];
-      if (a.mount === 'buiten' && b.mount === 'buiten') return [P(a), P({ x: b.x, y: a.y, z: a.z }), P(b)];
-      const top = (p) => p.mount === 'plafond' ? p.y : ceilAt(p.x, p.z);
-      const ya = top(a), yb = top(b), dropB = Math.abs(yb - b.y) > 1;
+      // Langs dezelfde wand: eerst verticaal of eerst horizontaal; zit er een deur of raam tussen, dan via het plafond.
+      if (a.face && a.face === b.face) {
+        const viaA = [P(a, a.face), P({ x: a.x, y: b.y, z: a.z }, a.face), P(b, b.face)];
+        const viaB = [P(a, a.face), P({ x: b.x, y: a.y, z: b.z }, a.face), P(b, b.face)];
+        if (clear(viaA)) return viaA;
+        if (clear(viaB)) return viaB;
+      }
+      if (a.mount === 'buiten' && b.mount === 'buiten') return [P(a)].concat(outside(a, b).map(c => P({ x: c.x, y: a.y, z: c.z })), [P(b)]);
+      // Wandpunt: de plafondhoogte iets de ruimte in meten (de wand zelf hoort bij geen ruimte).
+      const top = (p) => p.mount === 'plafond' ? p.y : p.face && p.face.n ? ceilAt(p.x + p.face.n.x * 50, p.z + p.face.n.z * 50) : ceilAt(p.x, p.z);
+      const A2 = a.mount === 'plafond' ? null : sidestep(a, top), B2 = b.mount === 'plafond' ? null : sidestep(b, top);
+      const a2 = A2 || a, b2 = B2 || b;
+      const ya = top(a2), yb = top(b2), dropB = Math.abs(yb - b.y) > 1;
       const pts = [P(a, a.face, a.mount === 'plafond')];
-      if (Math.abs(ya - a.y) > 1) pts.push(P({ x: a.x, y: ya, z: a.z }, a.face, true));
-      pts.push(P({ x: b.x, y: ceilAt(b.x, a.z), z: a.z }, null, true));
-      pts.push(P({ x: b.x, y: yb, z: b.z }, dropB ? b.face : null, true));
-      if (dropB) pts.push(P(b, b.face, false));
-      return pts;
+      if (A2) pts.push(P(A2, a.face));
+      if (Math.abs(ya - a.y) > 1) pts.push(P({ x: a2.x, y: ya, z: a2.z }, a.face, true));
+      corners(a2, b2, true).forEach(c => pts.push(P({ x: c.x, y: ceilAt(c.x, c.z), z: c.z }, null, true)));
+      pts.push(P({ x: b2.x, y: yb, z: b2.z }, dropB ? b.face : null, true));
+      if (dropB) {
+        if (B2) pts.push(P(B2, b.face));
+        pts.push(P(b, b.face, false));
+      }
+      return followCeiling(pts);
     }
     const length = (pts) => pts.slice(1).reduce((s, q, i) => s + Math.hypot(q.x - pts[i].x, q.y - pts[i].y, q.z - pts[i].z), 0);
     const cost = (a, b) => Math.abs(a.x - b.x) + Math.abs(a.z - b.z) + Math.abs(a.y - b.y);
@@ -201,7 +395,8 @@ window.ElektraModel = (() => {
       groups: [], runs: [], cables: [], wires: [], conduits: [], materials: [], warnings: [], items: [], faces: []
     };
     if (!s.enabled || !units.length) return out;
-    const R = makeRouter(units);
+    const blocked = makeOpeningTest(units, interior);
+    const R = makeRouter(units, rooms, blocked);
     const faces = {};
     units.forEach(u => { faces[u.id] = facesOf(u, interior); });
     const faceOfPiece = (u, p) => faces[u.id].find(f => f.piece === p && f.side === -1);
@@ -522,7 +717,7 @@ window.ElektraModel = (() => {
     });
     if (mkLow) out.apps.forEach(a => addRun(APPLIANCES[a.app].cable, mkLow, Object.assign({}, a.pos, { mount: 'wand', face: a.face, name: a.code }), a.group));
 
-    separateRuns(out.runs);
+    separateRuns(out.runs, blocked);
     const holesOf = makeHoleCounter(units, R);
     out.runs.forEach(r => {
       r.rawMM = R.length(r.path);
@@ -611,7 +806,7 @@ window.ElektraModel = (() => {
   }
 
   // Uitzondering: het laatste stuk naar de meterkast; daar komen de buizen tegen elkaar aan de kast binnen.
-  function separateRuns(runs) {
+  function separateRuns(runs, blocked) {
     const add = (p, d, k) => Object.assign({}, p, { x: p.x + d.x * k, y: p.y + d.y * k, z: p.z + d.z * k });
     const axisOf = (p, q) => {
       const dx = Math.abs(q.x - p.x), dy = Math.abs(q.y - p.y), dz = Math.abs(q.z - p.z);
@@ -682,6 +877,7 @@ window.ElektraModel = (() => {
             const kk = sign * k * step, p2 = add(p, dir, kk), q2 = add(q, dir, kk), s2 = seg(r, p2, q2, rad);
             const j1 = seg(r, p, p2, rad), j2 = seg(r, q2, q, rad);
             if (conflict(s2) || (!freeStart && conflict(j1)) || (!freeEnd && conflict(j2))) continue;
+            if (blocked && (blocked(p2, q2) || blocked(p, p2) || blocked(q2, q))) continue;
             pts = pts.slice(0, i + 1).concat([p2, q2], pts.slice(i + 1));
             placed.push(s2, j1, j2);
             i += 2;
@@ -735,13 +931,13 @@ window.ElektraModel = (() => {
       conduit
     };
   }
-  function build3D(el, materials, stage) {
+  // rough: buizen en inbouwdozen (in de wand en boven het plafond); uit bij de render-export.
+  function build3D(el, materials, layers, rough) {
     const toM = 0.001, group = new THREE.Group();
     if (!el || !el.enabled) return group;
     const mats = materials || createMaterials();
     mats.plateMaterial.color.setHex(PLATE_COLORS[el.settings.plateColor].hex);
-    const st = BuildStages.clamp(stage), show = (key) => BuildStages.shows(st, key);
-    const rough = show('elektra') && !show('beplating');
+    if (!ViewLayers.shows(layers, 'elektra')) return group;
     const box = (w, h, d, c, rotY, mat) => {
       const mesh = new THREE.Mesh(new THREE.BoxGeometry(w * toM, h * toM, d * toM), mat);
       mesh.position.set(c.x * toM, c.y * toM, c.z * toM);
@@ -750,18 +946,18 @@ window.ElektraModel = (() => {
       return mesh;
     };
     const k = el.meterkast;
-    if (k && show('elektra')) {
+    if (k) {
       box(k.w, k.h, k.d, k.center, k.rotY, mats.kastMaterial);
       const front = facePoint(k.face, k.u, k.y + k.h / 2, k.d + 2);
       box(k.w - 30, k.h - 30, 4, front, k.rotY, mats.deurMaterial);
     }
-    if (show('afwerking')) {
+    if (ViewLayers.shows(layers, 'afwerking')) {
       el.combos.forEach(c => box(c.width, PLATE, 10, c.center, c.rotY, mats.plateMaterial));
       el.wcds.forEach(w => box(WCD_W, PLATE, 12, w.center, w.rotY, mats.plateMaterial));
       el.apps.forEach(a => box(PLATE, PLATE, 12, a.center, a.rotY, mats.plateMaterial));
       el.floorWcds.forEach(w => box(130, 8, 130, { x: w.x, y: w.y + 4, z: w.z }, 0, mats.plateMaterial));
     }
-    if (!rough) return group;
+    if (rough === false) return group;
 
     const up = new THREE.Vector3(0, 1, 0);
     const shift = (p) => ({
@@ -859,7 +1055,7 @@ window.ElektraModel = (() => {
           } else {
             n += bom.filter(bp => VERTICAL_KINDS.includes(bp.kind) && between(bp.x + f.W / 2, a.u, b.u) && Math.abs(a.y - bp.y) <= bp.length / 2).length;
           }
-        } else if (!vertical && p.ceil && q.ceil) {
+        } else if (!vertical && p.ceil && q.ceil && !(p.plenum && q.plenum)) {
           const mid = { x: (p.x + q.x) / 2, z: (p.z + q.z) / 2 }, u = R.unitAt(mid.x, mid.z);
           if (u) u.roof.planes.forEach(pl => {
             const dm = roofDeckMap(u, pl), c = clipPlan(p, q, dm.bounds);

js/floor/floor.js

@@ -6,7 +6,10 @@
  */
 
 const FLOOR_TEMPLATE = `
-<div id="floor-app">
+<div id="floor-app" class="ed-app">
+ <div class="ed-main">
+  <div class="ed-toolbar" id="floor-toolbar"></div>
+  <div class="ed-views">
   <div id="floor-left-column">
     <div id="floor-pane-2d-container">
       <div class="pane-2d-sub" id="floor-pane-top">
@@ -18,7 +21,15 @@ const FLOOR_TEMPLATE = `
         <canvas id="floor-canvas-section"></canvas>
       </div>
     </div>
-    <div id="floor-control-panel">
+  </div>
+  <div id="floor-right-column">
+    <div id="floor-pane-3d">
+      <div class="pane-label">3D</div>
+    </div>
+  </div>
+  </div>
+ </div>
+    <div id="floor-control-panel" class="ed-panel">
       <div class="io-toolbar">
         <input type="file" id="f-file-import-json" accept="application/json" style="display:none;">
         <span id="f-io-status" class="io-status"></span>
@@ -27,6 +38,7 @@ const FLOOR_TEMPLATE = `
         <button class="tab-btn active" data-tab="floor-tab-main"><i class="bi bi-rulers"></i> Opbouw</button>
         <button class="tab-btn" data-tab="floor-tab-openings"><i class="bi bi-bullseye"></i> Doorvoeren</button>
         <button class="tab-btn" data-tab="floor-tab-chassis"><i class="bi bi-truck"></i> Chassis</button>
+        <button class="tab-btn" data-tab="floor-tab-specs"><i class="bi bi-clipboard-data"></i> Resultaat</button>
       </div>
 
       <div id="floor-tab-main" class="tab-content active">
@@ -57,20 +69,6 @@ const FLOOR_TEMPLATE = `
             <div class="control-group"><label>Afstand max.</label>
               <div><input type="number" id="f-inp-max-sp" value="600" step="10"><span class="unit">mm</span></div></div>
 
-            <div class="divider"></div>
-            <div class="result-row"><span>Vloerbalken</span><span data-spec="joist-count" class="highlight">-</span></div>
-            <div class="result-row"><span>Vloeroppervlak</span><span data-spec="floor-area" class="highlight">-</span></div>
-            <div class="result-row"><span>Volume balkhout</span><span data-spec="joist-m3" class="highlight">-</span></div>
-            <div class="result-row"><span>Gewicht balkhout</span><span data-spec="joist-kg" class="highlight">-</span></div>
-
-            <div class="divider"></div>
-            <div class="result-row"><span>OSB oppervlak</span><span data-spec="osb-m2" class="highlight">-</span></div>
-            <div class="result-row"><span>OSB volume</span><span data-spec="osb-m3" class="highlight">-</span></div>
-            <div class="result-row"><span>OSB gewicht</span><span data-spec="osb-kg" class="highlight">-</span></div>
-
-            <div class="divider"></div>
-            <div class="result-row"><span>Isolatie</span><span data-spec="void-m3" class="highlight">-</span></div>
-            <div class="result-row"><span>Totaal gewicht</span><span data-spec="total-kg" class="highlight">-</span></div>
           </div>
         </div>
       </div>
@@ -82,9 +80,8 @@ const FLOOR_TEMPLATE = `
       </div>
 
       <div id="floor-tab-chassis" class="tab-content">
-        <div class="material-toggle-group">
-          <button type="button" id="f-btn-chassis-toggle" class="material-toggle-btn">Chassis-laag: Uit</button>
-        </div>
+        <div class="control-group"><label for="f-chassis-on">Chassis-laag</label>
+          <div><label class="ui-switch"><input type="checkbox" id="f-chassis-on"><span></span></label></div></div>
         <div class="controls-grid">
           <div>
             <div class="control-group"><label>Wieldiameter</label>
@@ -99,17 +96,9 @@ const FLOOR_TEMPLATE = `
         </div>
         <div id="f-chassis-warning" class="global-warning" style="display:none;"></div>
       </div>
-    </div>
-  </div>
-
-  <div id="floor-right-column">
-    <div id="floor-pane-3d">
-      <div class="pane-label">3D</div>
-      <div class="toolbar-3d" id="floor-toolbar-3d"></div>
-    </div>
-
+      <div id="floor-tab-specs" class="tab-content">
     <div id="floor-specs-panel-3d">
-      <div class="controls-grid">
+      <div>
         <div>
           <div class="spec-section">
             <h1><i class="bi bi-columns-gap"></i> Balken</h1>
@@ -139,6 +128,7 @@ const FLOOR_TEMPLATE = `
     </div>
   </div>
 </div>
+</div>
 
 <div id="wall-project-overlay">
   <div id="wall-project-modal">
@@ -169,8 +159,8 @@ const FLOOR_TEMPLATE = `
       </div>
     </div>
     <div class="modal-footer">
-      <button type="button" id="wall-project-cancel" class="io-btn">Annuleren</button>
-      <button type="button" id="wall-project-save" class="material-toggle-btn active" style="flex:none; padding:6px 18px;">Opslaan</button>
+      <button type="button" id="wall-project-cancel" class="ui-btn" data-esc>Annuleren</button>
+      <button type="button" id="wall-project-save" class="ui-btn ui-btn-primary">Opslaan</button>
     </div>
   </div>
 </div>
@@ -285,16 +275,14 @@ function mountFloorEditor(container, callbacks) {
   document.querySelectorAll('#floor-tab-main input').forEach(inp => inp.addEventListener('input', updateAll));
 
   function syncChassisToggleLabel() {
-    const btn = document.getElementById('f-btn-chassis-toggle');
-    btn.classList.toggle('active', chassis.enabled);
-    btn.textContent = 'Chassis-laag: ' + (chassis.enabled ? 'Aan' : 'Uit');
+    document.getElementById('f-chassis-on').checked = chassis.enabled;
   }
-  document.getElementById('f-btn-chassis-toggle').addEventListener('click', () => {
-    chassis.enabled = !chassis.enabled;
+  document.getElementById('f-chassis-on').addEventListener('change', (e) => {
+    chassis.enabled = e.target.checked;
     syncChassisToggleLabel();
     updateAll();
   });
-  document.querySelectorAll('#floor-tab-chassis input').forEach(inp => inp.addEventListener('input', () => {
+  document.querySelectorAll('#floor-tab-chassis input[type=number]').forEach(inp => inp.addEventListener('input', () => {
     chassis.wheelDiameter = parseFloat(document.getElementById('f-inp-wheel-d').value) || 400;
     chassis.trackWidth = parseFloat(document.getElementById('f-inp-track').value) || 1200;
     chassis.wheelbase = parseFloat(document.getElementById('f-inp-wheelbase').value) || 1200;
@@ -632,19 +620,21 @@ function mountFloorEditor(container, callbacks) {
   let lastResolvedOpenings = [];
   let lastChassisData = { wheels: [], outOfBounds: false };
 
-  createViewFilter(document.getElementById('floor-toolbar-3d'), [
-    { key: 'beplating', label: roofMode ? 'Beplating (plafond + dakleer)' : 'Beplating (OSB-plaat)' }
-  ], (v) => {
-    osbVisible = v.beplating;
-    update3DScene();
-  });
   let skyMode = Skybox.getMode();
   const skyEnv = Skybox.createEnvironment(scene);
   const applySky = () => {
     skyEnv.fitTo(floorGroup3D, 0);
     Skybox.apply(skyMode, { env: skyEnv, grid, controls, sun: dirLight, ambient: floorAmbient, base: { ambient: 0.6, sun: 0.8 }, shadowRoot: floorGroup3D });
   };
-  Skybox.createToggle(document.getElementById('floor-toolbar-3d'), (m) => { skyMode = m; applySky(); });
+  const bar = UI.editorBar(document.getElementById('floor-toolbar'), document.getElementById('floor-app'), {
+    onResize: () => onWindowResize(),
+    layers: {
+      layers: {}, keys: [],
+      extras: [{ key: 'beplating', label: roofMode ? 'Beplating (plafond + dakleer)' : 'Beplating (OSB-plaat)' }],
+      onExtra: (v) => { osbVisible = v.beplating; update3DScene(); }
+    },
+    onSky: (m) => { skyMode = m; applySky(); }
+  });
 
   function update3DScene() {
     if (floorGroup3D) scene.remove(floorGroup3D);
@@ -691,14 +681,6 @@ function mountFloorEditor(container, callbacks) {
   }
   window.addEventListener('resize', onWindowResize);
 
-  function toggleFullscreen3D() {
-    UI.cycle3D(document.getElementById('floor-app'));
-    requestAnimationFrame(onWindowResize);
-  }
-  function toggleFullscreen2D() {
-    UI.toggle2D(document.getElementById('floor-app'));
-    requestAnimationFrame(onWindowResize);
-  }
 
   function getPureState() {
     return {
@@ -748,8 +730,8 @@ function mountFloorEditor(container, callbacks) {
     },
     exportDesign,
     triggerImport,
-    toggleFullscreen3D,
-    toggleFullscreen2D,
+    setView: bar.setView,
+    viewState: bar.viewState,
     openProjectProperties,
     getStateJson: getPureState,
     loadStateJson: applyPureState

js/house/house-dxf.js

@@ -200,6 +200,7 @@ window.HouseDxf = (() => {
       const s = pp.size / 2;
       dxf.polyline([{ x: pp.x - s, z: pp.z - s }, { x: pp.x + s, z: pp.z - s }, { x: pp.x + s, z: pp.z + s }, { x: pp.x - s, z: pp.z + s }].map(T), true, 'PL-PALEN');
     });
+    parts.posts.walls.forEach(w => dxf.polyline([{ x: w.x0, z: w.z0 }, { x: w.x1, z: w.z0 }, { x: w.x1, z: w.z1 }, { x: w.x0, z: w.z1 }].map(T), true, 'PL-PALEN'));
     (parts.chimneys || []).forEach(ch => {
       dxf.polyline(ch.footprint.map(T), true, 'PL-SCHOORSTEEN');
       dxf.polyline(ch.flueFootprint.map(T), true, 'PL-SCHOORSTEEN');

js/house/house-ifc.js

@@ -49,19 +49,20 @@ window.HouseIfc = (() => {
     };
   }
 
-  function build(state, stage) {
+  // rough: buizen en dozen bouwen; de plaatfase verzamelt alleen platen en heeft ze niet nodig.
+  function build(state, layers, rough) {
     const M = materialsSet();
     const parts = HouseModel.computeParts(state, {
       wallMaterials: M.wall, floorMaterials: M.floor, roofMaterials: M.roof, elektraMaterials: M.elektra, postMaterials: M.post,
-      stage, lampenVisible: false
+      layers, elektraRough: rough
     });
     HouseModel.placeGroups(parts);
     return { parts, classify: classifier(M) };
   }
 
   function generate(state) {
-    const frame = build(state, BuildStages.INDEX.elektra);
-    const sheet = build(state, BuildStages.INDEX.beplating);
+    const frame = build(state, ViewLayers.upTo(1), true);
+    const sheet = build(state, ViewLayers.upTo(2), false);
     const parts = frame.parts;
     if (!parts.units.length) throw new Error('geen units in het ontwerp');
     const bx0 = Math.min(...parts.rects.map(r => r.x0)), bz1 = Math.max(...parts.rects.map(r => r.z1));

js/house/house-model.js

@@ -34,9 +34,9 @@ window.HouseModel = (() => {
   function createDefaultSettings() {
     return {
       spacing: { exterior: { min: 240, max: 480 }, interior: { min: 300, max: 600 } },
-      facade: { type: 'rabat', stone: 'K490', rabatColor: 'naturel', stucColor: 'wit' },
+      facade: { type: 'rabat', stone: 'K490', rabatColor: 'naturel', stucColor: 'wit', felsColor: 'antraciet' },
       cladding: 'horizontaal',
-      trasraam: { enabled: true, height: WallModel.TRASRAAM_DEFAULT_MM, finish: 'cementplaat' },
+      trasraam: { enabled: true, height: WallModel.TRASRAAM_DEFAULT_MM, finish: 'cementplaat', capColor: 'antraciet' },
       interiorPaint: true,
       interiorColor: '#f2efe9',
       ceilingColor: '#f4f3ef',
@@ -54,7 +54,7 @@ window.HouseModel = (() => {
     return { id, attach, unit, roof: RoofModel.createDefaultRoof(unit.floor), lighting: LightingModel.createDefaultUnitLighting(), facade: { walls: {} } };
   }
 
-  const FACADE_TYPES = { rabat: 'Rabat', steen: 'Steen', stuc: 'Stucwerk' };
+  const FACADE_TYPES = { rabat: 'Rabat', steen: 'Steen', stuc: 'Stucwerk', fels: 'Felsplaten' };
   function facadeFor(state, u, side, piece) {
     const f = state.settings.facade;
     const ow = (u.facade && u.facade.walls && u.facade.walls[side]) || null;
@@ -62,15 +62,18 @@ window.HouseModel = (() => {
     const type = o && FACADE_TYPES[o.type] ? o.type : f.type;
     const stone = o && o.type === 'steen' && WallModel.isStoneFinish(o.stone) ? o.stone : f.stone;
     const stuc = o && o.type === 'stuc' && WallModel.isStucColor(o.stuc) ? o.stuc : f.stucColor;
-    return { type, stone, stuc, override: !!o };
+    const fels = o && o.type === 'fels' && WallModel.isFelsColor(o.fels) ? o.fels : f.felsColor;
+    return { type, stone, stuc, fels, override: !!o };
   }
   function facadeMaterials(state, fc) {
     const tr = state.settings.trasraam;
-    const trasraam = tr.enabled ? WallModel.trasraamFor(tr.height, tr.finish) : null;
+    const trasraam = tr.enabled ? WallModel.trasraamFor(tr.height, tr.finish, tr.capColor) : null;
     const cladding = state.settings.cladding;
-    if (fc.type === 'steen') return { exterior: 'cementplaat', stone: fc.stone, stuc: null, cladding, trasraam, rabatColor: null };
-    if (fc.type === 'stuc') return { exterior: 'cementplaat', stone: null, stuc: fc.stuc, cladding, trasraam, rabatColor: null };
-    return { exterior: 'vochtdoek', stone: null, stuc: null, cladding, trasraam, rabatColor: state.settings.facade.rabatColor };
+    if (fc.type === 'steen') return { exterior: 'cementplaat', stone: fc.stone, stuc: null, cladding, trasraam, rabatColor: null, fels: null };
+    if (fc.type === 'stuc') return { exterior: 'cementplaat', stone: null, stuc: fc.stuc, cladding, trasraam, rabatColor: null, fels: null };
+    // Felsplaten: opbouw als verticale rabat (latten liggend), de banen staan altijd.
+    if (fc.type === 'fels') return { exterior: 'vochtdoek', stone: null, stuc: null, cladding: 'verticaal', trasraam, rabatColor: null, fels: fc.fels };
+    return { exterior: 'vochtdoek', stone: null, stuc: null, cladding, trasraam, rabatColor: state.settings.facade.rabatColor, fels: null };
   }
 
   function newModelState(naam) {
@@ -154,6 +157,7 @@ window.HouseModel = (() => {
     S.lighting.mode = 'gevel';
     S.lighting.direction = 'both';
     if (S.elektra && S.elektra.apparaten) Object.assign(S.elektra.apparaten, { koken: true, oven: true, vaatwasser: true });
+    if (S.elektra) S.elektra.plateColor = 'antraciet';
 
     const A = createUnitEntry('A', null, { width: 11240, depth: 3600, height: H, windowOn: [] });
     const B = createUnitEntry('B', { to: 'A', side: 'achter', align: 'start', offset: 0 }, { width: 10600, depth: 3600, height: H, windowOn: [] });
@@ -243,6 +247,7 @@ window.HouseModel = (() => {
     S.lighting.mode = 'gevel';
     S.lighting.direction = 'both';
     if (S.elektra && S.elektra.apparaten) Object.assign(S.elektra.apparaten, { koken: true, oven: true, vaatwasser: true });
+    if (S.elektra) S.elektra.plateColor = 'antraciet';
 
     const A = createUnitEntry('A', null, { width: W, depth: DA, height: H, windowOn: [] });
     const B = createUnitEntry('B', { to: 'A', side: 'achter', align: 'start', offset: 0 }, { width: W, depth: DB, height: H, windowOn: [] });
@@ -309,6 +314,7 @@ window.HouseModel = (() => {
     S.lighting.mode = 'spots';
     S.lighting.direction = 'both';
     if (S.elektra && S.elektra.apparaten) Object.assign(S.elektra.apparaten, { koken: true, oven: true, vaatwasser: true });
+    if (S.elektra) S.elektra.plateColor = 'antraciet';
 
     const A = createUnitEntry('A', null, { width: 14000, depth: D, height: LO, windowOn: [] });
     const B = createUnitEntry('B', { to: 'A', side: 'achter', align: 'end', offset: 0 }, { width: 4600, depth: 3000, height: LO, windowOn: [] });
@@ -383,6 +389,7 @@ window.HouseModel = (() => {
     S.lighting.mode = 'spots';
     S.lighting.direction = 'both';
     if (S.elektra && S.elektra.apparaten) Object.assign(S.elektra.apparaten, { koken: true, oven: true, vaatwasser: true });
+    if (S.elektra) S.elektra.plateColor = 'antraciet';
 
     const A = createUnitEntry('A', null, { width: W, depth: D, height: LO, windowOn: [] });
     const B = createUnitEntry('B', { to: 'A', side: 'achter', align: 'start', offset: 0 }, { width: W, depth: D, height: LO, windowOn: [] });
@@ -473,6 +480,7 @@ window.HouseModel = (() => {
     S.lighting.mode = 'spots';
     S.lighting.direction = 'both';
     if (S.elektra && S.elektra.apparaten) Object.assign(S.elektra.apparaten, { koken: true, oven: true, vaatwasser: true });
+    if (S.elektra) S.elektra.plateColor = 'antraciet';
 
     const A = createUnitEntry('A', null, { width: 9200 - V, depth: D, height: LO, windowOn: [] });
     const B = createUnitEntry('B', { to: 'A', side: 'achter', align: 'end', offset: 0 }, { width: 9200, depth: D, height: LO, windowOn: [] });
@@ -567,6 +575,7 @@ window.HouseModel = (() => {
     S.lighting.mode = 'spots';
     S.lighting.direction = 'both';
     if (S.elektra && S.elektra.apparaten) Object.assign(S.elektra.apparaten, { koken: true, oven: true, vaatwasser: true });
+    if (S.elektra) S.elektra.plateColor = 'antraciet';
 
     const A = createUnitEntry('A', null, { width: 13000, depth: D, height: LO, windowOn: [] });
     const B = createUnitEntry('B', { to: 'A', side: 'achter', align: 'start', offset: 0 }, { width: 13000, depth: D, height: LO, windowOn: [] });
@@ -654,6 +663,219 @@ window.HouseModel = (() => {
     return st;
   }
 
+  // Model Reest (examples/ontwerp_reest.pdf): 12,9 × 7,85 m. Hoofdvolume 11,5 × 4,8 m onder één lessenaarsdak (hoog
+  // aan de noordgevel) dat aan de westkop 1,4 m doorloopt als overkapping bij de voordeur, aan de zuidkant dicht met
+  // een witte zijwand (PostModel sideWall, geen palen). 4,8 m is te diep voor één unit: twee units (3,4 + 1,4 m, de
+  // naad ten zuiden van het glas in de westgevel) met elk een lessenaar in hetzelfde vlak. Aan de noordwestkant een
+  // aanbouw van 3,89 × 3,05 m met plat dak (toilet, berging, entree), die met een open doorgang op de woonkamer
+  // uitkomt; de voordeur zit onder de overkapping. Zuidgevel en dak in felsplaten (daar geen boeideel: de dakplaat
+  // zet om, en de felsplaten lopen over de zijwand door), de rest verticale rabat; de aanbouw heeft daktrim. De
+  // aanbouw is de eerste unit, zodat alle maten buitenwerks vanaf zijn noordwesthoek gelden, zoals de tekening.
+  // De tekening heeft de zuidgevel van de aanbouw 240 mm zuidelijker (3290); in de configurator ligt hij op de naad.
+  function createReest() {
+    const st = newModelState('Reest');
+    const S = st.settings, HA = 2800, HN = 3500, HM = 2820, HS = 2540, DN = 3400, DS = 1400, V = 1400, FELS = 'antraciet';
+    Object.assign(S.facade, { type: 'rabat', rabatColor: 'naturel', felsColor: FELS });
+    S.cladding = 'verticaal';
+    S.trasraam.enabled = false;
+    Object.assign(S.roof, { fasciaColor: 'wit', overhang: 300, fasciaHeight: 300 });
+    S.roof.posts = PostModel.normalizeSettings({ enabled: true, sideWall: true, sideColor: 'wit', maxSpan: 6000 });
+    S.lighting.mode = 'gevel';
+    S.lighting.direction = 'both';
+    if (S.elektra && S.elektra.apparaten) Object.assign(S.elektra.apparaten, { koken: true, oven: true, vaatwasser: true });
+    if (S.elektra) S.elektra.plateColor = 'antraciet';
+
+    const A = createUnitEntry('A', null, { width: 3890, depth: 3050, height: HA, windowOn: [] });
+    const B = createUnitEntry('B', { to: 'A', side: 'achter', align: 'start', offset: V }, { width: 11500, depth: DN, height: HM, windowOn: [] });
+    const C = createUnitEntry('C', { to: 'B', side: 'achter', align: 'start', offset: 0 }, { width: 11500, depth: DS, height: HS, windowOn: [] });
+    st.units.push(A, B, C);
+    UnitModel.applyRoofForm(B.unit, { type: 'lessenaar', dir: 'voor', low: HM, high: HN });
+    UnitModel.applyRoofForm(C.unit, { type: 'lessenaar', dir: 'voor', low: HS, high: HM });
+    [B, C].forEach(u => { u.roof.covering = 'fels_' + FELS; u.roof.extend = { f: 0, r: 0, b: 0, l: V }; });
+    A.roof.fascia = false;
+    C.facade.walls.achter = { type: 'fels', fels: FELS };
+    [A, B, C].forEach(u => ['voor', 'achter', 'links', 'rechts'].forEach(side => { u.lighting.walls[side] = 'geen'; }));
+    B.lighting.walls.links = 'openingen';
+
+    const { K, binnen, ops } = modelKit(st, HS, 90);
+    // Noord 'right' en zuid 'left' = vanaf de westhoek van de unit; west 'left' = vanaf het noordeind van de wand.
+    ops(A.unit.walls.voor, [['raam', 500, 700, 1400, 'right', 475, K('raam')], ['raam', 800, 1100, 1000, 'right', 2175, K('raam')]]);
+    ops(A.unit.walls.achter, [['voordeur', 1100, 2100, 0, 'left', 230, K('deur', { hinge: 'links', swing: 'buiten', glas: true })]]);
+    ops(B.unit.walls.voor, [
+      ['raam', 600, 2100, 0, 'right', 3390, K('raam')],
+      ['deur', 900, 2100, 0, 'right', 3990, K('deur', { leaf: 'rechts', hinge: 'links', swing: 'buiten', volglas: true })],
+      ['deur', 900, 2100, 0, 'right', 4890, K('deur', { leaf: 'links', hinge: 'rechts', swing: 'buiten', volglas: true })],
+      ['raam', 600, 2100, 0, 'right', 5790, K('raam')],
+      ['raam', 500, 1400, 700, 'right', 7525, K('raam')],
+      ['raam', 500, 1400, 700, 'right', 9975, K('raam')]]);
+    ops(B.unit.walls.links, [['raam', 1800, 2600, 0, 'left', 1480, K('raam')]]);
+    ops(C.unit.walls.achter, [['raam', 1500, 500, 1600, 'left', 2050, K('raam')], ['raam', 1500, 500, 1600, 'left', 7440, K('raam')]]);
+
+    ensureSeamWalls(st, 'A');
+    const seam = st.interiorWalls.find(w => w.seam);
+    if (seam) {
+      // Open doorgang entree → woonkamer (x 1855–3045), gemeten vanaf de binnenkant van de westgevel van B.
+      const tB = WallModel.thicknessOf(WallModel.configFromState(B.unit.walls.links));
+      seam.wall.openings = [{ id: 1, type: 'deur', w: 1190, h: 2300, y: 0, anchor: 'left', offset: Math.round(1855 - V - tB),
+        fill: Object.assign(KozijnModel.defaultFill('deur'), { type: 'geen' }) }];
+    }
+
+    const DH = 2115;
+    // Aanbouw: wanden tot het platte dak. Noord–zuid: 'buiten' = west, 'left' = vanaf de noordkant; west–oost: 'buiten' = zuid, 'left' = vanaf de westkant.
+    const ann = modelKit(st, HA, 90);
+    ann.iw(1335, 190, 1335, 1690);                                                                              // toilet | berging
+    ann.iw(190, 1735, 3700, 1735, [                                                                             // toilet, berging | entree
+      ['deur', 930, DH, 'left', 70, binnen({ hinge: 'links', swing: 'buiten' })],
+      ['deur', 930, DH, 'left', 1260, binnen({ hinge: 'links', swing: 'buiten' })]]);
+    // Hoofdvolume: wanden onder het laagste punt van het dak, slaapkamer en badkamer met een vlak plafond.
+    const main = modelKit(st, HS - 40, 90);
+    main.iw(8715, 3240, 8715, 7660, [['deur', 930, DH, 'left', 1890, binnen({ hinge: 'rechts', swing: 'buiten' })]]); // woonkamer | slaapkamer, badkamer
+    main.iw(8760, 6215, 12710, 6215, [['deur', 930, DH, 'left', 1815,                                         // slaapkamer | badkamer
+      Object.assign(binnen(), { type: 'schuifdeur', leaves: 1, mount: 'opbouw', side: 'binnen', dir: 'links' })]]);
+
+    const { room, fx } = main;
+    const plafond = { ceiling: HS - 40 };
+    room('A', 700, 1000, 'toilet');
+    room('A', 2500, 1000, 'berging', 'Berging');
+    room('A', 1800, 2400, 'hal', 'Entree');
+    room('B', 3000, 1500, 'woonkeuken', 'Woonkamer/keuken');
+    room('B', 9000, 1500, 'slaapkamer', 'Slaapkamer', plafond);
+    room('C', 9500, 600, 'badkamer', '', plafond);
+
+    const xB = (x) => x - V, zB = (z) => z - 3050, zC = (z) => z - 3050 - DN;
+    fx('toilet', 'A', 735, 640, 0, { w: 1100 });
+    fx('boiler', 'A', 3400, 1430, 90);
+    fx('keuken', 'C', xB(3390), zC(7360), 180, { w: 3600 }, { front: 'antraciet', hogeKast: 'geen', spoelbak: 0.29, kookplaat: true, kookplaatPlek: 0.71 });
+    fx('eettafel', 'B', xB(2490), zB(5160), 0, { w: 1000, d: 1000 }, { vorm: 'rond', stoelen: 4 });
+    fx('bank', 'B', xB(5200), zB(4360), 270, { w: 1600, d: 800 }, { chaise: 'geen' });
+    fx('salontafel', 'B', xB(6740), zB(4200), 0, { w: 800, d: 800 }, { vorm: 'rond' });
+    fx('fauteuil', 'B', xB(6940), zB(5600), 90);
+    fx('bed', 'B', xB(10390), zB(4320), 0, { w: 1600, d: 2100 }, { nachtkastjes: false });
+    fx('kledingkast', 'B', xB(12420), zB(4705), 90, { w: 2900, anchor: 'oost' });
+    fx('toilet', 'C', xB(9420), zC(7300), 180, { w: 1000 });
+    fx('wastafel', 'C', xB(10890), zC(7420), 180, { w: 800 });
+    fx('douche', 'C', xB(12260), zC(6960), 180, { w: 900, d: 1400 }, { glas: 'rechts', glasLengte: 800 });
+
+    computeParts(st, { skip3D: true });
+    return st;
+  }
+
+  // Model Vecht: U-vorm 13 × 9,5 m (91,5 m²), de holte (4 m breed) open naar het noorden, de entree aan de
+  // zuidkant (de onderkant van de U). Drie units: slaapvleugel west (4,6 × 9,5 m), tussenlid met entree en
+  // toilet (4 × 3,6 m) en leefvleugel oost (4,4 × 7,6 m); de vleugels verschillen 1,9 m in lengte. De vleugels
+  // hebben een lessenaar die naar de holte afloopt (laag 2800, buiten 3600), het tussenlid een plat dak op
+  // dezelfde 2800: rond de holte één goothoogte. Het dak over de holte is de overkapping van het tussenlid
+  // (Unit B › Overkapping › Noord): 0 = open holte, 2400 (standaard) = over de verandadeuren, 4000 = tot het eind
+  // van de leefvleugel. De rand rust aan beide kanten op een vleugel; h.o.h. 4500, dus zonder palen. Buiten
+  // zwarte verticale rabat, de gevels aan de holte wit stucwerk. Alles buitenwerks vanaf de noordwesthoek.
+  function createVecht() {
+    const st = newModelState('Vecht');
+    const S = st.settings, LO = 2800, HI = 3600, FELS = 'fels_antraciet';
+    Object.assign(S.facade, { type: 'rabat', rabatColor: 'zwart', stucColor: 'wit' });
+    S.cladding = 'verticaal';
+    S.trasraam.enabled = false;
+    Object.assign(S.roof, { fasciaColor: 'zwart', overhang: 300, fasciaHeight: 300 });
+    S.roof.posts = PostModel.normalizeSettings({ enabled: true, size: 150, wood: 'eiken', maxSpan: 4500 });
+    S.lighting.mode = 'spots';
+    S.lighting.direction = 'both';
+    if (S.elektra && S.elektra.apparaten) Object.assign(S.elektra.apparaten, { koken: true, oven: true, vaatwasser: true });
+    if (S.elektra) S.elektra.plateColor = 'antraciet';
+
+    const A = createUnitEntry('A', null, { width: 4600, depth: 9500, height: LO, windowOn: [] });
+    const B = createUnitEntry('B', { to: 'A', side: 'rechts', align: 'end', offset: 0 }, { width: 4000, depth: 3600, height: LO, windowOn: [] });
+    const C = createUnitEntry('C', { to: 'B', side: 'rechts', align: 'end', offset: 0 }, { width: 4400, depth: 7600, height: LO, windowOn: [] });
+    st.units.push(A, B, C);
+    UnitModel.applyRoofForm(A.unit, { type: 'lessenaar', dir: 'links', low: LO, high: HI });
+    UnitModel.applyRoofForm(C.unit, { type: 'lessenaar', dir: 'rechts', low: LO, high: HI });
+    A.roof.covering = C.roof.covering = FELS;
+    B.roof.extend = { f: 2400, r: 0, b: 0, l: 0 };
+    const hof = { type: 'stuc', stuc: 'wit' };
+    A.facade.walls.rechts = Object.assign({}, hof);
+    B.facade.walls.voor = Object.assign({}, hof);
+    C.facade.walls.links = Object.assign({}, hof);
+
+    const { K, binnen, ops, iw, room, fx } = modelKit(st, LO, 90);
+    // Noord 'right' en zuid 'left' = vanaf de westhoek van de unit; west 'left' en oost 'right' = vanaf de
+    // binnenkant van de noordgevel (z 256 in de unit). Wanden 256 mm, binnenwanden 91 mm.
+    ops(A.unit.walls.voor, [['raam', 1600, 1500, 600, 'right', 2600, K('raam')]]);
+    ops(A.unit.walls.links, [
+      ['raam', 1600, 500, 1700, 'left', 600, K('raam')],                                                       // boven het bed
+      ['raam', 800, 600, 1500, 'left', 4644, K('raam')],                                                       // badkamer
+      ['raam', 800, 1400, 700, 'left', 7344, K('raam')]]);                                                     // slaapkamer 2
+    ops(A.unit.walls.rechts, [
+      ['raam', 1400, 2100, 300, 'right', 944, K('raam')],                                                      // slaapkamer → holte
+      ['raam', 1500, 2400, 0, 'right', 3994, K('raam')]]);                                                     // gang
+    ops(A.unit.walls.achter, [['raam', 1200, 1400, 700, 'left', 900, K('raam')]]);
+    ops(B.unit.walls.voor, [['raam', 2000, 2400, 0, 'right', 400, K('raam')]]);                               // zicht vanaf de voordeur op de holte
+    ops(B.unit.walls.achter, [
+      ['voordeur', 1100, 2100, 0, 'left', 800, K('deur', { hinge: 'links', swing: 'buiten', glas: true })],
+      ['raam', 400, 2100, 0, 'left', 2000, K('raam')],
+      ['raam', 500, 700, 1400, 'left', 3100, K('raam')]]);
+    ops(C.unit.walls.voor, [['raam', 2400, 2100, 300, 'right', 1000, K('raam')]]);
+    // Verandadeuren naar de holte, onder de overkapping.
+    ops(C.unit.walls.links, [
+      ['deur', 900, 2100, 0, 'left', 1744, K('deur', { leaf: 'rechts', hinge: 'links', swing: 'buiten', volglas: true })],
+      ['deur', 900, 2100, 0, 'left', 2644, K('deur', { leaf: 'links', hinge: 'rechts', swing: 'buiten', volglas: true })]]);
+    ops(C.unit.walls.rechts, [
+      ['raam', 2000, 900, 1900, 'right', 500, K('raam')],                                                      // boven de bank
+      ['raam', 1000, 2100, 300, 'right', 2844, K('raam')],
+      ['raam', 1200, 1100, 1000, 'right', 4744, K('raam')]]);
+    ops(C.unit.walls.achter, [['raam', 1400, 1000, 1100, 'left', 1400, K('raam')]]);                           // boven de spoelbak
+
+    const DH = 2115;
+    // Noord–zuid: 'buiten' = west, 'left' = vanaf de noordkant; west–oost: 'buiten' = zuid, 'left' = vanaf de westkant.
+    iw(256, 3902, 4344, 3902, [                                                                                 // slaapkamer | badkamer, gang
+      ['deur', 930, DH, 'left', 1944, binnen({ hinge: 'rechts', swing: 'buiten' })],
+      ['deur', 930, DH, 'left', 3124, binnen({ hinge: 'rechts', swing: 'binnen' })]]);
+    iw(3300, 3948, 3300, 9244, [['deur', 930, DH, 'left', 2452, binnen({ hinge: 'links', swing: 'buiten' })]]); // badkamer, slaapkamer 2 | gang, techniek
+    iw(256, 6293, 3254, 6293, [['deur', 930, DH, 'left', 1944, binnen({ hinge: 'rechts', swing: 'binnen' })]]);  // badkamer | slaapkamer 2
+    iw(3346, 7405, 4500, 7405, [['deur', 800, DH, 'middle', 0, binnen({ hinge: 'links', swing: 'buiten' })]]);  // gang | techniek
+    iw(7260, 7555, 8500, 7555);                                                                                 // hal | toilet
+    iw(7305, 7601, 7305, 9244, [['deur', 850, DH, 'left', 100, binnen({ hinge: 'links', swing: 'buiten' })]]);   // toilet → hal
+
+    ensureSeamWalls(st);
+    const seamOf = (a, b) => st.interiorWalls.find(w => w.seam && sameSeam(w.seam, a, b));
+    // Noord–zuid-naadwand: 'left' = vanaf de binnenkant van de zuidgevel (z 9244). Openingen bij de noordkant van de hal.
+    const sAB = seamOf('A', 'B'), sBC = seamOf('B', 'C');
+    if (sAB) sAB.wall.openings = [{ id: 1, type: 'deur', w: 1000, h: 2300, y: 0, anchor: 'left', offset: 1994,     // open doorgang hal → gang (z 6250–7250)
+      fill: Object.assign(KozijnModel.defaultFill('deur'), { type: 'geen' }) }];
+    if (sBC) sBC.wall.openings = [{ id: 1, type: 'deur', w: 930, h: DH, y: 0, anchor: 'left', offset: 2014,          // hal → keuken (z 6300–7230)
+      fill: binnen({ hinge: 'rechts', swing: 'binnen', glas: true }) }];
+
+    const plafond = { ceiling: LO };
+    room('A', 2000, 1500, 'slaapkamer', 'Slaapkamer', plafond);
+    room('A', 2300, 5100, 'badkamer');
+    room('A', 1500, 8800, 'slaapkamer', 'Slaapkamer 2', plafond);
+    room('A', 3900, 5000, 'hal', 'Gang', plafond);
+    room('A', 3900, 8000, 'wasruimte', 'Techniek/was', plafond);
+    room('B', 1200, 1500, 'hal', 'Entree');
+    room('B', 3325, 2400, 'toilet');
+    room('C', 2000, 3500, 'woonkeuken', 'Woonkamer/keuken');
+
+    const xB = (x) => x - 4600, zB = (z) => z - 5900, xC = (x) => x - 8600, zC = (z) => z - 1900;
+    fx('bed', 'A', 1306, 1656, 270, { w: 1600, d: 2100 }, { nachtkastjes: false });
+    fx('kledingkast', 'A', 1206, 3556, 180, { w: 1800 });
+    fx('douche', 'A', 856, 4398, 0, { w: 1200, d: 900 }, { glas: 'rechts', glasLengte: 900 });
+    fx('toilet', 'A', 601, 5250, 270);
+    fx('wastafel', 'A', 900, 6017, 180, { w: 1000 });
+    fx('bed', 'A', 1300, 7339, 0, { w: 1400, d: 2000 }, { nachtkastjes: false });
+    fx('kledingkast', 'A', 2954, 8300, 90, { w: 1800 });
+    fx('wasmachine', 'A', 3700, 8944, 180);
+    fx('boiler', 'A', 4200, 9019, 180);
+    fx('toilet', 'B', xB(7925), zB(8899), 180);
+    fx('fontein', 'B', xB(7925), zB(7726), 0);
+    fx('keuken', 'C', xC(10944), zC(8944), 180, { w: 3600 }, { front: 'antraciet', hogeKast: 'links', spoelbak: 0.57, kookplaat: false });
+    fx('kookeiland', 'C', xC(10800), zC(7094), 0, { w: 2400, d: 900 }, { front: 'antraciet', kookplaat: true });
+    fx('eettafel', 'C', xC(10500), zC(5300), 0, { w: 1800, d: 1000 }, { vorm: 'ovaal', stoelen: 6 });
+    fx('bank', 'C', xC(12294), zC(3656), 90, { w: 2400, d: 900 }, { chaise: 'geen' });
+    fx('salontafel', 'C', xC(11200), zC(3500), 0, { w: 800, d: 800 }, { vorm: 'rond' });
+    fx('fauteuil', 'C', xC(10300), zC(2850), 45);
+    fx('tvmeubel', 'C', xC(9056), zC(3100), 270, { w: 1400 });
+
+    computeParts(st, { skip3D: true });
+    return st;
+  }
+
   // Standaardmodellen: Bestand › Snel nieuw en het venster Nieuw. De sleutel is de template.
   const MODELS = {
     amstel: { label: 'Woning Amstel', icon: 'house-heart', create: createAmstel },
@@ -661,7 +883,9 @@ window.HouseModel = (() => {
     ijssel: { label: 'Woning IJssel', icon: 'houses', create: createIJssel },
     waal: { label: 'Woning Waal', icon: 'house-add', create: createWaal },
     maas: { label: 'Woning Maas', icon: 'house-check', create: createMaas },
-    rijn: { label: 'Woning Rijn', icon: 'house-gear', create: createRijn }
+    rijn: { label: 'Woning Rijn', icon: 'house-gear', create: createRijn },
+    reest: { label: 'Woning Reest', icon: 'house-up', create: createReest },
+    vecht: { label: 'Woning Vecht', icon: 'house-down', create: createVecht }
   };
 
   function createDefaultState(template) {
@@ -897,10 +1121,33 @@ window.HouseModel = (() => {
       }
     });
     state.interiorWalls.forEach(iw => { iw.wall.wall.minSpacing = sp.interior.min; iw.wall.wall.maxSpacing = sp.interior.max; });
+    // Geen wolfsdak boven een overkapping: wordt een zadeldak met dezelfde goot en nok.
+    if (houseRoofOn(state)) {
+      if (state.settings.roof.house.form.type === 'wolf' && state.units.some(u => roofCovers(u, cover))) state.settings.roof.house.form.type = 'zadel';
+    } else state.units.forEach(u => {
+      const f = UnitModel.roofForm(u.unit);
+      if (f.type === 'wolf' && roofCovers(u, cover)) UnitModel.applyRoofForm(u.unit, Object.assign(f, { type: 'zadel' }));
+    });
     applyHouseRoof(state);
     applyRoofJoins(state);
   }
 
+  // Overkapping (veranda, inpandig of uitpandig): het dak van de unit steekt buiten zijn vloer. Een vrije dakmaat
+  // telt pas vanaf de kleinste paal-uitkraging; daaronder is het overstek.
+  function roofCovers(u, cover) {
+    if (!u.roof.followFloor) {
+      const d = u.roof.deck.floor, f = u.unit.floor.floor, m = 400;
+      return (d.width - f.width) / 2 + Math.abs(u.roof.offsetX || 0) > m || (d.depth - f.depth) / 2 + Math.abs(u.roof.offsetZ || 0) > m;
+    }
+    const c = cover[u.id] || {}, x = u.roof.extend || {};
+    return ['l', 'r', 'f', 'b'].some(k => (c[k] || 0) + (x[k] || 0) > EPS);
+  }
+  // Overkapping onder het dak van de unit (unitId) of ergens onder de woning (geen unitId): dan geen wolfsdak.
+  function hasCover(state, unitId) {
+    const cover = coverExtensions(state);
+    return state.units.some(u => (!unitId || u.id === unitId) && roofCovers(u, cover));
+  }
+
   const EXTEND_MAX = 4000;
   function normalizeExtend(e) {
     return Object.fromEntries(['f', 'r', 'b', 'l'].map(k => [k, Math.max(0, Math.min(EXTEND_MAX, Math.round(Number((e || {})[k]) || 0)))]));
@@ -1231,8 +1478,9 @@ window.HouseModel = (() => {
   function computeParts(state, opts) {
     const o = opts || {};
     const build = !o.skip3D;
-    const stage = BuildStages.clamp(o.stage);
-    const shows = (key) => BuildStages.shows(stage, key);
+    const layers = ViewLayers.normalize(o.layers);
+    const shows = (key) => layers[key];
+    const hideFrame = (group, mats) => { if (group && mats && !shows('regelwerk')) ViewLayers.hideByMaterial(group, [mats.woodMaterial, mats.steelMaterial]); };
     applyGlobalSettings(state);
     const rects = unitRects(state);
     const rectById = {};
@@ -1252,11 +1500,11 @@ window.HouseModel = (() => {
     });
     const ridgePairs = houseShape ? {} : doubleLessenaarPairs(state, rects, cuts);
 
-    function buildWall(config, frame, buitenMateriaal, cladding, trasraam, skinExt, facade, skinFrom, spaanplaatBelow, stone, skinAbove, trimTop, battenAbove, stuc, skinTop) {
+    function buildWall(config, frame, buitenMateriaal, cladding, trasraam, skinExt, facade, skinFrom, spaanplaatBelow, stone, skinAbove, trimTop, battenAbove, stuc, skinTop, fels) {
       if (!build) return { group: null, stats: null, specs: null };
       const built = WallModel.build3D(config, frame, {
-        materials: o.wallMaterials, buitenMateriaal, cladding, trasraam, skinExt, facade, skinFrom, spaanplaatBelow, stone, skinAbove, trimTop, battenAbove, stuc, skinTop,
-        painted: state.settings.interiorPaint && shows('afwerking'), stage, rabatColor: state.settings.facade.rabatColor
+        materials: o.wallMaterials, buitenMateriaal, cladding, trasraam, skinExt, facade, skinFrom, spaanplaatBelow, stone, skinAbove, trimTop, battenAbove, stuc, skinTop, fels,
+        painted: state.settings.interiorPaint && shows('afwerking'), layers, rabatColor: state.settings.facade.rabatColor
       });
       return { group: built.group, stats: built.stats, specs: WallModel.computeSpecs(config, built.stats, buitenMateriaal) };
     }
@@ -1275,11 +1523,12 @@ window.HouseModel = (() => {
         const cladding = m.cladding || 'horizontaal';
         const stone = buitenMateriaal === 'cementplaat' ? (m.stone || null) : null;
         const stuc = buitenMateriaal === 'cementplaat' && !stone ? (m.stuc || null) : null;
+        const fels = buitenMateriaal === 'vochtdoek' ? (m.fels || null) : null;
         const trasraam = buitenMateriaal === 'vochtdoek' || stone || stuc ? (m.trasraam || null) : null;
         return Object.assign(p, {
           element: `${u.id}-W${wl.nr}${p.suffix}`,
           label: `Unit ${u.id} ${wl.label.toLowerCase()}` + (base ? ` opbouw (vanaf ${base} mm)` : p.suffix ? ` (${p.suffix})` : ''),
-          buitenMateriaal, cladding, trasraam: base ? null : trasraam, stone, stuc, facadeOwn: own,
+          buitenMateriaal, cladding, trasraam: base ? null : trasraam, stone, stuc, fels, facadeOwn: own,
           place: { cx: rect.cx + c.x, cz: rect.cz + c.z, rotY: wl.rotY, width: p.config.wallWidth, thickness: wl.thickness, normal: wl.normal, floorTop: layout.floorTop + base, baseY: base }
         }); // 3D volgt na assignFacades (latwerk/doek per gevel)
       });
@@ -1301,9 +1550,10 @@ window.HouseModel = (() => {
       const floorData = FloorModel.computeFromState(u.unit.floor, rims);
       const floorSpecs = FloorModel.computeSpecs(floorData.calcData, floorData.resolvedOpenings);
       const floorGroup = build ? FloorModel.build3D(floorData.calcData, floorData.resolvedOpenings, floorData.chassisData, {
-        materials: o.floorMaterials, osbVisible: shows('beplating'),
+        materials: o.floorMaterials, osbVisible: shows('beplating'), outerJoistsOnly: !!o.finishedOnly && shows('beplating'),
         finish: shows('afwerking') ? { key: state.settings.floorFinish, originX: rect.cx * 0.001, originZ: rect.cz * 0.001 } : null
       }) : null;
+      hideFrame(floorGroup, o.floorMaterials);
 
       const walls = layout.walls.map(wl => wallOf(u, rect, layout, wl));
 
@@ -1337,9 +1587,10 @@ window.HouseModel = (() => {
       const roofGroup = build ? RoofModel.buildUnit3D(ur, {
         materials: o.roofMaterials,
         osbVisible: shows('beplating'),
-        dakleerVisible: shows('gevel'),
+        dakleerVisible: shows('dakbedekking'),
         ceilingMaterial: state.settings.interiorPaint && shows('afwerking') && o.roofMaterials ? o.roofMaterials.ceilingMaterial : null
       }) : null;
+      hideFrame(roofGroup, o.roofMaterials);
       const ext = coverExt[u.id];
       if (roofGroup && ext && shows('afwerking')) {
         const fz = rect.z0 - ext.f, bz = rect.z1 + ext.b;
@@ -1625,10 +1876,11 @@ window.HouseModel = (() => {
         });
       }));
     });
-    const facadeDepth = (a, b, nrm) => {
+    // Gevelstuk onder een dakrand (grootste overlap langs de rand); dot < 0 = gevel van een hoger deel ertegenover.
+    const edgePiece = (a, b, nrm) => {
       const horiz = Math.abs(nrm.z) > 0.5;
       const line = horiz ? a.z : a.x, s0 = Math.min(horiz ? a.x : a.z, horiz ? b.x : b.z), s1 = Math.max(horiz ? a.x : a.z, horiz ? b.x : b.z);
-      let best = 0, bestOv = 1;
+      let best = null, bestOv = 1;
       extPieces.forEach(p => {
         const pn = { x: p.place.normal.x, z: p.place.normal.y };
         const dot = pn.x * nrm.x + pn.z * nrm.z;
@@ -1638,15 +1890,20 @@ window.HouseModel = (() => {
         const ov = Math.min(s1, Math.max(horiz ? q0.x : q0.z, horiz ? q1.x : q1.z)) - Math.max(s0, Math.min(horiz ? q0.x : q0.z, horiz ? q1.x : q1.z));
         if (ov <= bestOv) return;
         bestOv = ov;
-        best = Math.sign(dot) * WallModel.claddingOffset(p.buitenMateriaal, p.stone, p.stuc);
+        best = { p, dot };
       });
       return best;
     };
+    const facadeDepth = (a, b, nrm) => {
+      const e = edgePiece(a, b, nrm);
+      return e ? Math.sign(e.dot) * WallModel.claddingOffset(e.p.buitenMateriaal, e.p.stone, e.p.stuc) : null; // null: geen gevel (veranda)
+    };
+    const facadeFels = (a, b, nrm) => { const e = edgePiece(a, b, nrm); return !!(e && e.dot > 0 && e.p.fels); };
     const roofEdge = units.length ? RoofModel.computeEdge(state.settings.roof,
       units.map(u => ({
         unitId: u.id, rect: u.roof.rect, fascia: state.units.find(su => su.id === u.id).roof.fascia !== false,
-        topAt: u.roof.topAt, ridges: u.roof.ridges
-      })), facadeDepth) : null;
+        covering: u.roof.covering, topAt: u.roof.topAt, ridges: u.roof.ridges
+      })), facadeDepth, facadeFels) : null;
     const pointInPoly = (q, poly) => {
       let inside = false;
       for (let i = 0, j = poly.length - 1; i < poly.length; j = i++) {
@@ -1662,13 +1919,13 @@ window.HouseModel = (() => {
       const sg = [10, 60, 150].map(d => ({ x: m.x + nrm.x * d, z: m.z + nrm.z * d }))
         .map(q => roofEdge.segments.find(e => pointInPoly(q, [e.a, e.b, e.outerB, e.outerA]))).find(Boolean);
       if (!sg) return;
-      const h = sg.fascia ? roofEdge.fasciaHeight : roofEdge.trimHeight + roofEdge.edgeAbove;
-      p.battenAbove = (p.skinAbove || 0) + roofEdge.edgeAbove - h;
+      const above = sg.fels ? RoofModel.FELS_EDGE.aboveMM : roofEdge.edgeAbove;
+      p.battenAbove = (p.skinAbove || 0) + above - RoofModel.edgeHeight(roofEdge, sg);
     });
     assignFacades(extPieces.concat(interior.filter(p => p.skinFrom !== undefined)));
     const rooms = RoomModel.compute(state.rooms || [], units, extPieces.concat(interior));
     extPieces.concat(interior).forEach(p => {
-      const built = buildWall(p.config, p.frame, p.buitenMateriaal, p.cladding, p.trasraam, p.skinExt, p.facade, p.skinFrom, p.spaanplaatBelow, p.stone, p.skinAbove, p.trimTop, p.battenAbove, p.stuc, p.skinTop);
+      const built = buildWall(p.config, p.frame, p.buitenMateriaal, p.cladding, p.trasraam, p.skinExt, p.facade, p.skinFrom, p.spaanplaatBelow, p.stone, p.skinAbove, p.trimTop, p.battenAbove, p.stuc, p.skinTop, p.fels);
       if (built.group && p.shiftZ) {
         const outer = new THREE.Group();
         built.group.position.z = p.shiftZ * 0.001;
@@ -1683,18 +1940,32 @@ window.HouseModel = (() => {
     const lighting = LightingModel.compute(state.settings.lighting, state.settings.roof, units, state.units, roofEdge);
     if (roofEdge && chimneys.length) roofEdge.spots = roofEdge.spots.filter(sp => !ChimneyModel.covers(chimneys, sp.x, sp.z, 60));
     const roofEdgeGroup = build && roofEdge ? RoofModel.buildEdge3D(roofEdge, o.roofMaterials, {
-      edgeVisible: shows('afwerking'), spotsVisible: o.lampenVisible !== false && shows('afwerking')
+      edgeVisible: shows('afwerking'), spotsVisible: shows('lampen')
     }) : null;
     lighting.indoor = LightingModel.computeIndoor(state.settings.lighting, units, interior);
     LightingModel.roomSpots(state.settings.lighting, lighting.indoor, rooms, units);
     RoomModel.lowerSpots(rooms, lighting.indoor);
     const lightingGroup = build ? LightingModel.build3D(lighting.lamps, o.lightingMaterials || LightingModel.createMaterials(), lighting.indoor) : null;
-    if (lightingGroup) lightingGroup.visible = o.lampenVisible !== false && shows('afwerking');
+    if (lightingGroup) lightingGroup.visible = shows('lampen');
     const elektra = ElektraModel.compute(state.settings.elektra, units, interior, lighting, roofEdge, rooms);
-    const elektraGroup = build ? ElektraModel.build3D(elektra, o.elektraMaterials, stage) : null;
-    if (elektraGroup) elektraGroup.visible = o.elektraVisible !== false && shows('elektra');
+    const elektraGroup = build ? ElektraModel.build3D(elektra, o.elektraMaterials, layers, o.finishedOnly ? false : o.elektraRough) : null;
+    if (elektraGroup) elektraGroup.visible = shows('elektra');
 
-    const posts = PostModel.compute(state.settings.roof.posts, units, groundY);
+    // Zijwand van een overkapping in het vlak van een gevel: die bekleding loopt erover door.
+    const postOutside = (w, out) => {
+      const line = out.x > 0 ? w.x1 : out.x < 0 ? w.x0 : out.z > 0 ? w.z1 : w.z0;
+      const p = extPieces.find(pc => {
+        const n = { x: pc.place.normal.x, z: pc.place.normal.y }, q = UnitModel.localToWorld(pc.place, 0, pc.place.thickness / 2);
+        return n.x * out.x + n.z * out.z > 0.5 && Math.abs((out.x ? q.x : q.z) - line) < 2 && !pc.place.baseY;
+      });
+      if (!p || (p.buitenMateriaal === 'cementplaat' && !p.stone && !p.stuc)) return null;
+      const kind = p.fels ? 'fels' : p.stone ? 'steen' : p.stuc ? 'stuc' : 'rabat';
+      return {
+        kind, depth: WallModel.claddingOffset(p.buitenMateriaal, p.stone, p.stuc),
+        finish: { fels: p.fels, stone: p.stone, stuc: p.stuc, rabatColor: kind === 'rabat' ? state.settings.facade.rabatColor : null, cladding: p.cladding }
+      };
+    };
+    const posts = PostModel.compute(state.settings.roof.posts, units, groundY, postOutside);
     const postsGroup = build ? PostModel.build3D(posts, o.postMaterials) : null;
     const chimneysGroup = build && chimneys.length ? ChimneyModel.build3D(chimneys, {
       materials: o.chimneyMaterials, wallMaterial: o.wallMaterials && o.wallMaterials.spaanplaatMaterial
@@ -1708,12 +1979,79 @@ window.HouseModel = (() => {
     }) : null;
 
     const roomsGroup = build ? RoomModel.build3D(rooms) : null;
-    if (roomsGroup) roomsGroup.visible = shows('afwerking');
+    if (roomsGroup) roomsGroup.visible = shows('ruimtes') && shows('afwerking');
     const fixtures = FixtureModel.compute(state.fixtures || [], units);
     const fixturesGroup = build ? FixtureModel.build3D(fixtures) : null;
-    if (fixturesGroup) fixturesGroup.visible = shows('afwerking');
+    if (fixturesGroup) fixturesGroup.visible = shows('inrichting');
 
-    return { rects, seams, overlaps: overlappingPairs(rects), units, interior, roofEdge, roofEdgeGroup, lighting, lightingGroup, elektra, elektraGroup, sandwich, sandwichGroup, posts, postsGroup, chimneys, chimneysGroup, rooms, roomsGroup, fixtures, fixturesGroup };
+    const parts = { rects, seams, overlaps: overlappingPairs(rects), units, interior, roofEdge, roofEdgeGroup, lighting, lightingGroup, elektra, elektraGroup, sandwich, sandwichGroup, posts, postsGroup, chimneys, chimneysGroup, rooms, roomsGroup, fixtures, fixturesGroup };
+    if (build && o.finishedOnly) keepFinished(parts, o.wallMaterials);
+    return parts;
+  }
+
+  // finishedOnly (render-export): alleen wat in de afgewerkte woning te zien is. Naast de buitenste vloerbalken en geen
+  // elektraleidingen (hierboven): geen isolatie, latten en vochtdoek achter de gevel, geen lichtkegels, valse plafonds altijd.
+  function keepFinished(parts, wallMaterials) {
+    if (wallMaterials) allWallPieces(parts).forEach(p => ViewLayers.hideByMaterial(p.group,
+      [wallMaterials.isolatieMaterial, wallMaterials.battenMaterial, wallMaterials.doekMaterial]));
+    if (parts.lightingGroup) parts.lightingGroup.traverse(x => { if (x.userData.beam) x.visible = false; });
+    if (parts.roomsGroup && parts.roomsGroup.userData.ceilings) parts.roomsGroup.userData.ceilings.visible = true;
+  }
+
+  // Doorsnede: witte afdekking van de wanden. Hij volgt de bovenkant van elke wand, afgetopt op de snijhoogte cutAbs
+  // (mm, absoluut): op de snede vlak en onderbroken door de openingen, daaronder over de wandtop (ook schuin), zodat
+  // een wand die niet tot de snede reikt ook wit afgedekt is. Met gevelbekleding vanaf de buitenkant daarvan (latwerk
+  // is open); zonder beplating tussen de platen. De afdekking ligt CAP_LIFT_MM boven wand of snede: alles wat daar
+  // eindigt (regelwerk, platen) valt eronder en flikkert niet mee (dieptebuffer op afstand).
+  const CAP_LIFT_MM = 1;
+  function sectionCaps(parts, cutAbs, material, layers) {
+    const toM = 0.001, g = new THREE.Group();
+    const S = WallModel.STONE;
+    const gevel = ViewLayers.shows(layers, 'gevel'), beplating = ViewLayers.shows(layers, 'beplating');
+    allWallPieces(parts).forEach(p => {
+      const y = cutAbs - p.place.floorTop;
+      if (y <= 0) return;
+      const W = p.place.width, T = p.place.thickness, tl = WallModel.topLine(p.config);
+      const topAt = (x) => tl.at(Math.max(-W / 2, Math.min(W / 2, x)));
+      const hAt = (x) => Math.min(y, topAt(x));
+      const outAt = (h) => {
+        if (!gevel || !p.place.normal || p.buitenMateriaal === 'geen') return 0;
+        const tr = p.trasraam;
+        return tr && h < tr.top ? (WallModel.isStoneFinish(tr.finish) ? S.THICK_MM : 0) : WallModel.claddingOffset(p.buitenMateriaal, p.stone, p.stuc);
+      };
+      const sh = beplating ? 0 : p.config.sheathingThick;
+      const e = p.skinExt || {}, out0 = outAt(hAt(0));
+      const xL = -W / 2 - (e.left > 0 ? e.left + out0 : 0), xR = W / 2 + (e.right > 0 ? e.right + out0 : 0);
+      // Knikpunten: de wandtop en waar die door de snijhoogte gaat; op de snede de openingen eruit.
+      const xs = [...new Set([xL, xR, ...tl.pts.map(q => q.x), ...tl.crossings(y)].filter(x => x >= xL && x <= xR))].sort((a, b) => a - b);
+      const gaps = p.config.openings.map(op => WallModel.openingSpanAtY(op, y)).filter(Boolean)
+        .map(([a, b]) => [-W / 2 + a, -W / 2 + b]).sort((a, b) => a[0] - b[0]);
+      const spans = [];
+      for (let i = 0; i < xs.length - 1; i++) {
+        const a = xs[i], b = xs[i + 1];
+        if (b - a <= 1) continue;
+        const onCut = topAt((a + b) / 2) >= y - 0.5;
+        if (!onCut) { spans.push([a, b]); continue; }
+        let cur = a;
+        gaps.forEach(([g0, g1]) => { if (g1 <= cur || g0 >= b) return; if (g0 > cur) spans.push([cur, g0]); cur = Math.max(cur, g1); });
+        if (b > cur) spans.push([cur, b]);
+      }
+      const pos = [];
+      spans.filter(([a, b]) => b - a > 1).forEach(([a, b]) => {
+        const ha = hAt(a) + CAP_LIFT_MM, hb = hAt(b) + CAP_LIFT_MM, out = outAt((ha + hb) / 2);
+        const z0 = -T / 2 + sh, z1 = T / 2 + out - (p.buitenMateriaal !== 'geen' ? sh : 0);
+        // Twee driehoeken, normaal omhoog.
+        pos.push(a, ha, z0, a, ha, z1, b, hb, z1, a, ha, z0, b, hb, z1, b, hb, z0);
+      });
+      if (!pos.length) return;
+      const geo = new THREE.BufferGeometry();
+      geo.setAttribute('position', new THREE.Float32BufferAttribute(pos.map(v => v * toM), 3));
+      const m = new THREE.Mesh(geo, material);
+      m.rotation.y = p.place.rotY;
+      m.position.set(p.place.cx * toM, p.place.floorTop * toM, p.place.cz * toM);
+      g.add(m);
+    });
+    return g;
   }
 
   // 3D-groepen op hun plek in de woning (m); elektra, palen en dakrand staan al in woningcoördinaten.
@@ -1736,6 +2074,21 @@ window.HouseModel = (() => {
     return ext.concat(parts.interior);
   }
 
+  // Alle 3D-groepen van de woning (na placeGroups), bijv. voor een scène of een export.
+  function rootGroups(parts) {
+    return parts.units.map(u => u.floorGroup).concat(allWallPieces(parts).map(p => p.group), parts.units.map(u => u.roof.group),
+      [parts.roofEdgeGroup, parts.postsGroup, parts.chimneysGroup, parts.sandwichGroup, parts.lightingGroup, parts.elektraGroup, parts.roomsGroup, parts.fixturesGroup]).filter(Boolean);
+  }
+
+  // Oorsprong voor exports (m): maaiveld onder het midden van de units.
+  function groundOrigin(st, parts) {
+    const rs = parts.rects;
+    const bx0 = Math.min(...rs.map(r => r.x0)), bx1 = Math.max(...rs.map(r => r.x1));
+    const bz0 = Math.min(...rs.map(r => r.z0)), bz1 = Math.max(...rs.map(r => r.z1));
+    const ground = Math.max(...parts.units.map(u => u.layout.floorTop)) - (st.settings.groundLevel || 0);
+    return { x: (bx0 + bx1) / 2000, y: ground / 1000, z: (bz0 + bz1) / 2000 };
+  }
+
   function computeDimensions(parts, groundLevel) {
     const m2 = (mm2) => mm2 / 1e6;
     const rects = parts.rects;
@@ -1889,6 +2242,7 @@ window.HouseModel = (() => {
       woodM3: sumU(u => u.floorSpecs.joistWoodM3 + u.roof.specs.joistWoodM3) + sumP(p => p.stats.woodVolumeM3),
       woodKg: sumU(u => u.floorSpecs.joistWoodKg + u.roof.specs.joistWoodKg) + sumP(p => p.specs.woodKg),
       battens: { count: sumP(p => p.stats.battenCount || 0), lengthM: sumP(p => p.stats.battenLengthM || 0), kg: sumP(p => p.specs.battenKg || 0) },
+      trasraamCap: { lengthM: sumP(p => p.stats.trasraamCapM || 0), color: (WallModel.TRIM_COLORS[(pieces.find(p => p.stats.trasraamCapM > 0 && p.trasraam) || { trasraam: {} }).trasraam.capColor] || {}).label || '' },
       isolatie,
       isolatieM3: isolatie.reduce((a, r) => a + r.m3, 0),
       plaatwerk: [
@@ -1937,6 +2291,10 @@ window.HouseModel = (() => {
         {
           naam: `Rabat ${WallModel.CLADDING_THICK_MM} mm (gevelbekleding)`, m2: byMat('vochtdoek').reduce((a, p) => a + (p.stats.rabatAreaM2 || 0), 0),
           m3: null, kg: 0 // gewicht volgt
+        },
+        {
+          naam: 'Felsplaten gevel (staande naad)', m2: byMat('vochtdoek').reduce((a, p) => a + (p.stats.felsAreaM2 || 0), 0),
+          m3: null, kg: byMat('vochtdoek').reduce((a, p) => a + (p.stats.felsAreaM2 || 0), 0) * RoofModel.FELS.kgM2
         }
       ],
       weights,
@@ -1946,9 +2304,10 @@ window.HouseModel = (() => {
         return { unit: u.id, name: rb.profile.name, kgM: rb.profile.kgM, lengthM: rb.length / 1000, kg: rb.steelKg, fillM3: rb.fillM3, fillKg: rb.fillKg,
           util: rb.util, defl: rb.defl, deflMax: rb.deflMax, ok: rb.ok, below: rb.below, loadKNm: rb.loadKNm };
       }),
-      posts: parts.posts.count ? {
+      posts: parts.posts.count || parts.posts.walls.length ? {
         count: parts.posts.count, size: parts.posts.size, wood: (PostModel.WOODS[parts.posts.wood] || {}).label || '',
-        lengthM: parts.posts.lengthMM / 1000, m3: parts.posts.m3, kg: parts.posts.kg
+        lengthM: parts.posts.lengthMM / 1000, m3: parts.posts.m3, kg: parts.posts.kg,
+        walls: parts.posts.walls.length, wallM2: parts.posts.wallM2, outsideM2: parts.posts.outsideM2
       } : null,
       roofEdge: parts.roofEdge ? {
         fasciaLengthM: parts.roofEdge.fasciaLengthMM / 1000,
@@ -1957,6 +2316,8 @@ window.HouseModel = (() => {
         overhang: parts.roofEdge.overhang,
         soffitM2: parts.roofEdge.soffitM2,
         trimLengthM: parts.roofEdge.trimLengthMM / 1000,
+        ventLengthM: (parts.roofEdge.ventLengthMM || 0) / 1000,
+        ventColor: parts.roofEdge.vent ? (WallModel.TRIM_COLORS[parts.roofEdge.ventColor] || {}).label || '' : '',
         trimHeight: parts.roofEdge.trimHeight,
         spots: parts.roofEdge.spots.length
       } : null,
@@ -2017,10 +2378,12 @@ window.HouseModel = (() => {
     if (!WallModel.isStoneFinish(state.settings.facade.stone)) state.settings.facade.stone = def.facade.stone;
     if (!WallModel.RABAT_COLORS[state.settings.facade.rabatColor]) state.settings.facade.rabatColor = def.facade.rabatColor;
     if (!WallModel.isStucColor(state.settings.facade.stucColor)) state.settings.facade.stucColor = def.facade.stucColor;
+    if (!WallModel.isFelsColor(state.settings.facade.felsColor)) state.settings.facade.felsColor = def.facade.felsColor;
     state.settings.trasraam = Object.assign(def.trasraam, state.settings.trasraam || {});
     state.settings.trasraam.enabled = state.settings.trasraam.enabled !== false;
     if (!(state.settings.trasraam.height > 0)) state.settings.trasraam.height = WallModel.TRASRAAM_DEFAULT_MM;
     if (!WallModel.isStoneFinish(state.settings.trasraam.finish)) state.settings.trasraam.finish = 'cementplaat';
+    if (!WallModel.isTrimColor(state.settings.trasraam.capColor)) state.settings.trasraam.capColor = 'antraciet';
     state.settings.sandwich = state.settings.sandwich !== false;
     if (!/^#[0-9a-f]{6}$/i.test(state.settings.interiorColor || '')) state.settings.interiorColor = def.interiorColor;
     if (!/^#[0-9a-f]{6}$/i.test(state.settings.ceilingColor || '')) state.settings.ceilingColor = def.ceilingColor;
@@ -2057,7 +2420,7 @@ window.HouseModel = (() => {
     ALIGN_LABELS, SIDE_LABELS, DEFAULT_INTERIOR_THICKNESS, FACADE_TYPES, facadeFor, facadeMaterials,
     clone, createEmptyProject, createDefaultSettings, createUnitEntry, applyGlobalSettings, nextUnitId, MODELS, createDefaultState, unitRects, computeSeams, overlappingPairs,
     interiorWallDefaults, setThickness, thicknessOf, interiorLayout, ensureSeamWalls, syncSeamWalls, missingSeamWalls,
-    houseRoofShape, houseRoofFits, setHouseRoof, coverExtensions, EXTEND_MAX,
-    computeParts, placeGroups, allWallPieces, computeTotals, computeDimensions, dimensionRows, TRANSPORT, TRANSPORT_CLASSES, computeTransport, validateState, fromUnitDesign, normalize
+    houseRoofShape, houseRoofFits, hasCover, setHouseRoof, coverExtensions, EXTEND_MAX,
+    computeParts, placeGroups, rootGroups, groundOrigin, sectionCaps, allWallPieces, computeTotals, computeDimensions, dimensionRows, TRANSPORT, TRANSPORT_CLASSES, computeTransport, validateState, fromUnitDesign, normalize
   };
 })();

js/house/house-pdf.js

@@ -42,11 +42,13 @@ window.HousePdf = (() => {
     return list;
   }
 
+  // customer (light-versie): zonder onderdelenlijst, elementcodes en elektra; de tekening schuift dan naar links.
   function drawPlanSheet(doc, parts, sheets, sheetOpts) {
     const { RED, BLUE, BLACK, GREY } = PdfSheet.COLORS;
+    const customer = !!sheetOpts.customer;
     doc.setFont('helvetica', 'normal');
 
-    PdfSheet.table(doc, 8, 14, [0, 16, 60], ['Element', 'Onderdeel', 'Blad'],
+    if (!customer) PdfSheet.table(doc, 8, 14, [0, 16, 60], ['Element', 'Onderdeel', 'Blad'],
       sheets.map((s, i) => [s.element, s.label, String(i + 1)]).filter(r => r[0] !== PLAN_ELEMENT),
       { title: 'Onderdelen', lastColW: 8, maxY: 285, rowH: 3.9, fontSize: 6 });
     PdfSheet.titleBlock(doc, sheetOpts.project, sheetOpts);
@@ -54,7 +56,7 @@ window.HousePdf = (() => {
     const rects = parts.rects;
     const bx0 = Math.min(...rects.map(r => r.x0)), bx1 = Math.max(...rects.map(r => r.x1));
     const bz0 = Math.min(...rects.map(r => r.z0)), bz1 = Math.max(...rects.map(r => r.z1));
-    const drawX0 = 105, drawX1 = 405, drawY0 = 20, drawY1 = 228;
+    const drawX0 = customer ? 15 : 105, drawX1 = 405, drawY0 = 20, drawY1 = 228;
     const margin = 32;
     const scale = Math.min((drawX1 - drawX0 - margin * 2) / (bx1 - bx0), (drawY1 - drawY0 - margin * 2) / (bz1 - bz0));
     const ox = (drawX0 + drawX1) / 2 - ((bx0 + bx1) / 2) * scale;
@@ -139,6 +141,8 @@ window.HousePdf = (() => {
     doc.setLineWidth(0.2);
     doc.setFillColor(160, 124, 84);
     parts.posts.posts.forEach(pp => doc.rect(px(pp.x - pp.size / 2), py(pp.z - pp.size / 2), pp.size * scale, pp.size * scale, 'FD'));
+    doc.setFillColor(235, 235, 232);
+    parts.posts.walls.forEach(w => doc.rect(px(w.x0), py(w.z0), (w.x1 - w.x0) * scale, (w.z1 - w.z0) * scale, 'FD'));
     (parts.chimneys || []).forEach(ch => {
       doc.setFillColor(150, 150, 150);
       poly(ch.footprint, 'FD');
@@ -153,7 +157,7 @@ window.HousePdf = (() => {
       doc.rect(px(l.x + l.normal.x * 80) - 0.9, py(l.z + l.normal.z * 80) - 0.9, 1.8, 1.8, 'FD');
     });
 
-    ElektraPdf.drawPlan(doc, parts.elektra, px, py);
+    if (!customer) ElektraPdf.drawPlan(doc, parts.elektra, px, py);
 
     doc.setDrawColor(230, 130, 30);
     doc.setLineWidth(0.4);
@@ -171,13 +175,13 @@ window.HousePdf = (() => {
       const b = UnitModel.localToWorld(p.place, p.place.width / 2, p.place.thickness / 2);
       const x0 = px(a.x) + n.x * off, y0 = py(a.z) + n.y * off, x1 = px(b.x) + n.x * off, y1 = py(b.z) + n.y * off;
       PdfSheet.dimLine(doc, x0, y0, x1, y1);
-      const text = `${p.element}: ${p.place.width}`;
+      const text = customer ? String(p.place.width) : `${p.element}: ${p.place.width}`;
       const tx = (x0 + x1) / 2 + n.x * 2.5, ty = (y0 + y1) / 2 + n.y * 2.5 + (n.y > 0 ? 1.5 : 0);
       if (n.y === 0) doc.text(text, tx, ty, { align: 'center', angle: 90 });
       else doc.text(text, tx, ty, { align: 'center' });
     })));
     doc.setTextColor(...BLACK);
-    parts.interior.forEach(p => {
+    if (!customer) parts.interior.forEach(p => {
       doc.text(`${p.element}: ${p.place.width}`, px(p.place.cx), py(p.place.cz) - 1.5, { align: 'center', angle: Math.abs(Math.sin(p.place.rotY)) < 0.5 ? 0 : 90 });
     });
 
@@ -224,7 +228,7 @@ window.HousePdf = (() => {
     doc.setFontSize(6);
     doc.text('Plattegrond woning — oranje gestippeld = naad tussen units (wand vervalt), openingen gekruist, grijs gestippeld = dakrand, zwart gestippeld = ' +
       'boeideel (o = spot), grijs = daktrim, geel blokje = gevellamp, kleurvlak = ruimte (netto m²)', drawX0, drawY1 + 4);
-    if (parts.elektra && parts.elektra.enabled) doc.text(ElektraPdf.PLAN_LEGEND, drawX0, drawY1 + 7.5);
+    if (!customer && parts.elektra && parts.elektra.enabled) doc.text(ElektraPdf.PLAN_LEGEND, drawX0, drawY1 + 7.5);
   }
 
   const hexRgb = (h) => { const n = parseInt(String(h).replace('#', ''), 16); return [(n >> 16) & 255, (n >> 8) & 255, n & 255]; };
@@ -257,7 +261,8 @@ window.HousePdf = (() => {
     const addWall = (p, y0) => {
       const n = { x: p.place.normal.x, z: p.place.normal.y };
       const zOut = p.place.thickness / 2 + WallModel.claddingOffset(p.buitenMateriaal, p.stone, p.stuc);
-      const color = p.stone ? (WallModel.STONE_COLORS[p.stone] || '#a0724f') : p.stuc ? WallModel.stucHex(p.stuc) : WallModel.rabatHex(state.settings.facade.rabatColor);
+      const color = p.stone ? (WallModel.STONE_COLORS[p.stone] || '#a0724f') : p.stuc ? WallModel.stucHex(p.stuc) : p.fels ? WallModel.felsHex(p.fels)
+        : WallModel.rabatHex(state.settings.facade.rabatColor);
       faces.push({ kind: 'wand', pts: wallFace(p, y0).map(q => toWorld(p, q.x, q.y, zOut)), n, color, bias: 0 });
       const tr = p.trasraam;
       if (tr && tr.top > y0) {
@@ -266,6 +271,12 @@ window.HousePdf = (() => {
         const trColor = WallModel.isStoneFinish(tr.finish) ? (WallModel.STONE_COLORS[tr.finish] || '#a0724f') : VIEW_COLORS.cementplaat;
         const zT = p.place.thickness / 2 + (WallModel.isStoneFinish(tr.finish) ? WallModel.STONE.THICK_MM : 12);
         faces.push({ kind: 'trasraam', pts: band.map(q => toWorld(p, q.x, q.y, zT)), n, color: trColor, bias: 1 });
+        // Afdekker: neus over de bovenkant van de steen (alleen in 3D onderbroken bij openingen).
+        if (p.stats && p.stats.trasraamCapM > 0) {
+          const C = WallModel.TRAS_CAP, yLo = tr.top - C.DROP_MM, yHi = tr.top + C.THICK_MM;
+          faces.push({ kind: 'trasraam', pts: [[-W / 2, yLo], [W / 2, yLo], [W / 2, yHi], [-W / 2, yHi]].map(([lx, ly]) => toWorld(p, lx, ly, zT + C.GAP_MM + C.THICK_MM)),
+            n, color: WallModel.trimHex(tr.capColor), bias: 1.5 });
+        }
       }
       (p.config.openings || []).filter(op => op.type !== 'schoorsteen').forEach(op => {
         if (WallModel.openingTopMax(op) <= y0) return;
@@ -312,10 +323,9 @@ window.HousePdf = (() => {
 
     const edge = parts.roofEdge;
     if (edge) {
-      const fc = (RoofModel.FASCIA_COLORS[edge.fasciaColor] || RoofModel.FASCIA_COLORS.antraciet).hex;
       const lerp = (a, b, t) => ({ x: a.x + (b.x - a.x) * t, z: a.z + (b.z - a.z) * t });
       edge.segments.forEach(sg => {
-        const h = sg.fascia ? edge.fasciaHeight : edge.trimHeight + edge.edgeAbove;
+        const h = RoofModel.edgeHeight(edge, sg);
         const n = Math.max(1, Math.ceil(Math.hypot(sg.outerB.x - sg.outerA.x, sg.outerB.z - sg.outerA.z) / 100));
         const top = [], bottom = [];
         for (let k = 0; k <= n; k++) {
@@ -324,7 +334,18 @@ window.HousePdf = (() => {
           top.push({ x: O.x, y: Math.max(tI, tO), z: O.z });
           bottom.push({ x: O.x, y: Math.min(tI, tO) - h, z: O.z });
         }
-        faces.push({ kind: 'dakrand', pts: top.concat(bottom.reverse()), n: { x: sg.normal.x, z: sg.normal.z }, color: sg.fascia ? fc : 0xb8bcc0, bias: 3 });
+        // Rooster op de gevel, onder de onderplaat.
+        if (sg.fascia && sg.facadeUnder && edge.vent) {
+          const V = RoofModel.VENT, d = RoofModel.ventFace(sg) + V.THICK_MM - (sg.a.x * sg.normal.x + sg.a.z * sg.normal.z);
+          const vTop = [];
+          for (let k = 0; k <= n; k++) {
+            const I = lerp(sg.a, sg.b, k / n), q = { x: I.x + sg.normal.x * d, z: I.z + sg.normal.z * d };
+            vTop.push({ x: q.x, y: sg.topAt(q) - h, z: q.z });
+          }
+          faces.push({ kind: 'dakrand', pts: vTop.concat(vTop.map(q => ({ x: q.x, y: q.y - V.HEIGHT_MM, z: q.z })).reverse()),
+            n: { x: sg.normal.x, z: sg.normal.z }, color: WallModel.trimHex(edge.ventColor), bias: 2.5 });
+        }
+        faces.push({ kind: 'dakrand', pts: top.concat(bottom.reverse()), n: { x: sg.normal.x, z: sg.normal.z }, color: RoofModel.edgeColor(edge, sg), bias: 3 });
       });
     }
     (parts.chimneys || []).forEach(ch => {
@@ -351,21 +372,27 @@ window.HousePdf = (() => {
       UnitModel.normalizeSplits(u.unit.walls[side].splits).filter(sp => sp.facade).forEach(sp => facades.push(HouseModel.facadeFor(state, u, side, sp.facade)));
     }));
     facades.forEach(fc => {
-      const key = fc.type === 'steen' ? 'steen:' + fc.stone : fc.type === 'stuc' ? 'stuc:' + fc.stuc : 'rabat';
+      const key = fc.type === 'steen' ? 'steen:' + fc.stone : fc.type === 'stuc' ? 'stuc:' + fc.stuc : fc.type === 'fels' ? 'fels:' + fc.fels : 'rabat';
       if (seen.has(key)) return;
       seen.add(key);
       items.push(fc.type === 'steen'
         ? { label: 'Gevel', value: `Steen ${fc.stone}`, thumb: WallModel.stoneThumbUrl(fc.stone, 64), color: WallModel.STONE_COLORS[fc.stone] }
         : fc.type === 'stuc'
           ? { label: 'Gevel', value: `Stucwerk ${((WallModel.STUC_COLORS[fc.stuc] || {}).label || '').toLowerCase()}`, color: WallModel.stucHex(fc.stuc) }
-          : { label: 'Gevel', value: `Rabat ${((WallModel.RABAT_COLORS[st.facade.rabatColor] || {}).label || '').toLowerCase()} (${(WallModel.CLADDING_DIRECTIONS[st.cladding] || st.cladding).toLowerCase()})`, color: WallModel.rabatHex(st.facade.rabatColor) });
+          : fc.type === 'fels'
+            ? { label: 'Gevel', value: `Felsplaten ${((WallModel.FELS.COLORS[fc.fels] || {}).label || '').toLowerCase()} (staande naad)`, color: WallModel.felsHex(fc.fels) }
+            : { label: 'Gevel', value: `Rabat ${((WallModel.RABAT_COLORS[st.facade.rabatColor] || {}).label || '').toLowerCase()} (${(WallModel.CLADDING_DIRECTIONS[st.cladding] || st.cladding).toLowerCase()})`, color: WallModel.rabatHex(st.facade.rabatColor) });
     });
     if (st.trasraam.enabled) {
       const tf = st.trasraam.finish;
       items.push(WallModel.isStoneFinish(tf)
         ? { label: `Trasraam (${st.trasraam.height} mm)`, value: `Steen ${tf}`, thumb: WallModel.stoneThumbUrl(tf, 64), color: WallModel.STONE_COLORS[tf] }
         : { label: `Trasraam (${st.trasraam.height} mm)`, value: 'Cementplaat', color: VIEW_COLORS.cementplaat });
+      const tc = WallModel.TRIM_COLORS[st.trasraam.capColor];
+      if (parts && tc && HouseModel.allWallPieces(parts).some(p => p.stats && p.stats.trasraamCapM > 0)) items.push({ label: 'Afdekker trasraam', value: tc.label, color: tc.hex });
     }
+    const vc = parts && parts.roofEdge && parts.roofEdge.vent && parts.roofEdge.ventLengthMM > 0 && WallModel.TRIM_COLORS[parts.roofEdge.ventColor];
+    if (vc) items.push({ label: 'Ventilatierooster', value: vc.label, color: vc.hex });
     (parts ? parts.units : state.units).forEach(u => {
       const cov = parts ? u.roof.covering : (u.roof.covering || 'dakleer');
       const c = RoofModel.COVERINGS[cov] || RoofModel.COVERINGS.dakleer;
@@ -612,6 +639,8 @@ window.HousePdf = (() => {
         rows.push(['Onderplaat boeideel', fmt(e.soffitM2, 2) + ' m2']);
       }
       if (e.trimLengthM > 0) rows.push(['Daktrim', `${fmt(e.trimLengthM, 2)} m, ${e.trimHeight} mm hoog`]);
+      if (e.ventLengthM > 0) rows.push(['Ventilatierooster', `${fmt(e.ventLengthM, 2)} m op de gevel onder de boeidelen, ${RoofModel.VENT.HEIGHT_MM} mm hoog, ${e.ventColor.toLowerCase()}`]);
+      if (totals.trasraamCap && totals.trasraamCap.lengthM > 0) rows.push(['Afdekker trasraam', `${fmt(totals.trasraamCap.lengthM, 2)} m, ${totals.trasraamCap.color.toLowerCase()}`]);
       rows.push(['Boeideel-spots', e.spots + ' stuks']);
       rows.push(['Gevellampen', `${L.total} stuks (boven+onder ${L.both}, onder ${L.down}, boven ${L.up})`]);
       rows.push(['Binnenspots', `${L.indoor} stuks (plafond)`]);
@@ -760,28 +789,37 @@ window.HousePdf = (() => {
     PdfSheet.titleBlock(doc, sheetOpts.project, sheetOpts);
   }
 
-  function generate(state) {
+  // opts.customer (light-versie): alleen aanzichten en plattegrond, zonder productie-informatie en kosten.
+  // opts.doc: verder in een bestaand document (nieuwe pagina's erachter); opts.pageOffset/pageTotal: bladnummering
+  // als er pagina's omheen komen (voorblad e.d.).
+  function generate(state, opts) {
+    const o = opts || {};
+    const customer = !!o.customer;
     const parts = HouseModel.computeParts(state, {
-      wallMaterials: WallModel.createMaterials(), floorMaterials: FloorModel.createMaterials(), roofMaterials: RoofModel.createMaterials()
+      wallMaterials: WallModel.createMaterials(), floorMaterials: FloorModel.createMaterials(), roofMaterials: RoofModel.createMaterials(),
+      elektraRough: false
     });
-    const totals = HouseModel.computeTotals(parts);
-    const sheets = sheetList(parts);
-    const cost = CostModel.compute(parts, totals);
+    const sheets = sheetList(parts).filter(s => !customer || s.kind === 'views' || s.kind === 'plan');
+    const totals = customer ? null : HouseModel.computeTotals(parts);
+    const cost = customer ? null : CostModel.compute(parts, totals);
     const costOf = (element) => cost.elements.find(el => el.element === element);
     const drawWallWithCost = (sheet, opts) => {
       WallPdf.drawSheet(doc, sheet.piece.config, sheet.piece.frame, Object.assign({ buitenMateriaal: sheet.piece.buitenMateriaal, cladding: sheet.piece.cladding, trasraam: sheet.piece.trasraam, skinExt: sheet.piece.skinExt, facade: sheet.piece.facade, skinFrom: sheet.piece.skinFrom, lamps: sheet.piece.lamps || [],
         overlay: ElektraPdf.wallOverlay(parts.elektra, sheet.piece) }, opts));
       drawElementCost(doc, costOf(sheet.element));
     };
-    const detailPages = paginateCostRows(costDetailRows(cost));
-    sheets.push({ kind: 'cost', element: 'KOST', label: 'Kostenraming' });
-    detailPages.forEach((cols, i) => sheets.push({ kind: 'costdetail', element: `KOST-${i + 1}`, label: 'Kostenraming detail' + (detailPages.length > 1 ? ` (${i + 1})` : ''), cols }));
+    if (!customer) {
+      const detailPages = paginateCostRows(costDetailRows(cost));
+      sheets.push({ kind: 'cost', element: 'KOST', label: 'Kostenraming' });
+      detailPages.forEach((cols, i) => sheets.push({ kind: 'costdetail', element: `KOST-${i + 1}`, label: 'Kostenraming detail' + (detailPages.length > 1 ? ` (${i + 1})` : ''), cols }));
+    }
     const project = state.project;
-    const doc = PdfSheet.createDoc();
+    const doc = o.doc || PdfSheet.createDoc();
+    const offset = o.pageOffset || 0, total = o.pageTotal || sheets.length;
 
     sheets.forEach((sheet, i) => {
-      if (i > 0) doc.addPage('a3', 'landscape');
-      const opts = { project, titel: sheet.label, element: sheet.element, blad: `${i + 1} / ${sheets.length}` };
+      if (i > 0 || o.doc) doc.addPage('a3', 'landscape');
+      const opts = { project, titel: sheet.label, element: sheet.element, blad: `${offset + i + 1} / ${total}`, customer };
       if (sheet.kind === 'views') drawViewsSheet(doc, parts, state, opts);
       else if (sheet.kind === 'plan') drawPlanSheet(doc, parts, sheets, opts);
       else if (sheet.kind === 'floor') {

js/light/light-model.js

@@ -0,0 +1,349 @@
+/*!
+ * Tectum
+ * Copyright © 2026 Machiel Heinen.
+ * Alle rechten voorbehouden. Gebruik uitsluitend met schriftelijke toestemming.
+ * Zie LICENTIE.md.
+ */
+
+// Light-versie (modelpagina's): hetzelfde model en dezelfde berekeningen als de configurator, met een beperkte set
+// keuzes. Keuzes worden altijd opnieuw toegepast op een schone kopie van het model, zodat terug naar de
+// oorspronkelijke keuze precies het model geeft. Een keuze die de indeling breekt (ramen en deuren die niet meer
+// passen, binnenwanden of inrichting buiten de unit, ruimtes die verdwijnen) wordt geweigerd (check).
+window.LightModel = (() => {
+  const LIM = UnitModel.LIMITS;
+  // Kaders (mm) als het model of de pagina niets opgeeft; altijd binnen UnitModel.LIMITS. Per model te
+  // beperken met FRAMES, per pagina met mount-optie frames (zelfde vorm).
+  const DEFAULT_FRAME = { width: [2400, LIM.long], depth: [2400, LIM.long], height: [2400, LIM.eave] };
+  const FRAMES = {
+    // amstel: { units: { A: { width: [9000, 13000], depth: null } }, height: [2600, 3000] }
+  };
+  const STEP = 50;
+  // Helling (graden) bij een andere dakvorm dan die van het model.
+  const PITCH = { lessenaar: 10, zadel: 30, wolf: 35 };
+  const FACADES = { rabat: 'Hout', fels: 'Felsplaten', stuc: 'Stucwerk', steen: 'Steenstrips' };
+  const STONES = ['K490', 'K915', 'K911', 'K764', 'K518', 'K706'];
+  const LIGHTING = { geen: 'Geen', spots: 'Spots in de dakrand', gevel: 'Gevellampen' };
+  // Punten tot zo ver van de oost- of zuidrand van een unit horen bij die gevel en schuiven mee.
+  const BAND = 450;
+
+  const clone = HouseModel.clone;
+  const rectMap = (st) => Object.fromEntries(HouseModel.unitRects(st).map(r => [r.id, r]));
+  const houseRoof = (st) => !!(st.settings.roof.house.enabled && st.settings.roof.house.form);
+
+  // Alle gevel-overrides van het model (per wand en per wandstuk): het "accent".
+  function accents(st) {
+    const out = [];
+    st.units.forEach(u => Object.entries(u.unit.walls).forEach(([side, ws]) => {
+      if (u.facade.walls[side]) out.push({ get: () => u.facade.walls[side], set: (v) => { if (v) u.facade.walls[side] = v; else delete u.facade.walls[side]; } });
+      (ws.splits || []).forEach(sp => { if (sp && sp.facade) out.push({ get: () => sp.facade, set: (v) => { sp.facade = v || null; } }); });
+    }));
+    return out;
+  }
+  const colorOf = (o) => o.type === 'steen' ? o.stone : o.type === 'stuc' ? o.stuc : o.type === 'fels' ? o.fels : null;
+
+  function frameOf(key, override) {
+    const f = Object.assign({}, FRAMES[key] || {}, override || {});
+    const clampR = (r, lim) => r && [Math.max(1000, Math.min(lim, r[0])), Math.min(lim, r[1])];
+    return {
+      unit: (id) => {
+        const u = (f.units || {})[id] || {};
+        const pick = (k, lim) => u[k] === null ? null : clampR(u[k] || DEFAULT_FRAME[k], lim);
+        return { width: pick('width', LIM.long), depth: pick('depth', LIM.long) };
+      },
+      height: clampR(f.height || DEFAULT_FRAME.height, LIM.eave)
+    };
+  }
+
+  // Model inladen: schone basis, oorspronkelijke dakvormen en de keuzes zoals het model ze heeft.
+  function create(key, opts) {
+    const def = HouseModel.MODELS[key];
+    if (!def) throw new Error(`onbekend model "${key}"`);
+    const base = def.create();
+    const forms = Object.fromEntries(base.units.map(u => [u.id, UnitModel.roofForm(u.unit)]));
+    if (houseRoof(base)) forms.house = Object.assign({}, base.settings.roof.house.form);
+    const f = base.settings.facade, acc = accents(base).map(a => a.get());
+    const covering = (base.units.find(u => RoofModel.COVERINGS[u.roof.covering] && RoofModel.COVERINGS[u.roof.covering].sloped) || base.units[0]).roof.covering;
+    const choices = {
+      units: Object.fromEntries(base.units.map(u => {
+        const fl = u.unit.floor.floor;
+        return [u.id, { width: fl.width, depth: fl.depth, low: forms[u.id].low, high: highOf(forms[u.id]), type: forms[u.id].type, cut: cutOf(forms[u.id]), dir: forms[u.id].dir || null, ridge: forms[u.id].ridge || null }];
+      })),
+      house: forms.house ? { low: forms.house.low, high: highOf(forms.house), type: forms.house.type, cut: cutOf(forms.house), dir: forms.house.dir || null, ridge: forms.house.ridge || null } : null,
+      covering: RoofModel.COVERINGS[covering] ? covering : 'dakleer',
+      facade: { type: f.type, rabat: f.rabatColor, cladding: base.settings.cladding, stuc: f.stucColor, fels: f.felsColor, stone: f.stone },
+      accent: acc.length ? { type: acc[0].type, color: colorOf(acc[0]) } : null,
+      // Trasraam: alleen geen of steen; een cementplaat-trasraam van het model wordt geen.
+      trasraam: (() => {
+        const t = base.settings.trasraam, stone = WallModel.isStoneFinish(t.finish) && t.finish !== 'cementplaat';
+        return { on: !!t.enabled && stone, finish: stone ? t.finish : null, height: t.height };
+      })(),
+      lighting: { mode: base.settings.lighting.mode, direction: base.settings.lighting.direction, indoor: base.settings.lighting.indoor !== false },
+      // Boeidelen (aan = boeidelen, uit = daktrim) met kleur; een model met beide houdt zijn eigen indeling tot je kiest.
+      fascia: { on: base.units.some(u => u.roof.fascia !== false), color: RoofModel.FASCIA_COLORS[base.settings.roof.fasciaColor] ? base.settings.roof.fasciaColor : 'antraciet' },
+      // Zetwerk: één kleur voor de afdekker op het trasraam en het ventilatierooster onder de boeidelen.
+      trim: WallModel.isTrimColor(base.settings.roof.ventColor) ? base.settings.roof.ventColor : 'antraciet'
+    };
+    const model = { key, label: def.label, base, forms, hasAccent: acc.length > 0, frame: frameOf(key, opts && opts.frames), initial: clone(choices) };
+    const st = build(model, choices);
+    model.reference = issuesOf(st, HouseModel.computeParts(st, { skip3D: true }));
+    return model;
+  }
+
+  // Wolfseind als verhouding tussen goot (0) en nok (1), zoals de configurator: schaalt mee met goot en nok.
+  const WOLF_CUT = 0.6;
+  const cutOf = (form) => form.type !== 'wolf' ? null
+    : form.cutRatio > 0 ? form.cutRatio : form.cut ? (form.cut - form.low) / Math.max(1, form.high - form.low) : WOLF_CUT;
+
+  // Nok (of hoge kant) als keuze; null = afgeleid (plat dak, of een andere dakvorm dan die van het model).
+  const RISE_MIN = 300;
+  const highOf = (form) => form.type === 'plat' ? null : form.high;
+
+  // Dakvorm bij een keuze (c: type, low, high, cut, dir, ridge): dezelfde vorm als het model houdt richting en
+  // dakhoogte boven de goot, een andere krijgt de helling uit PITCH over de korte kant (lessenaar hoog aan de noord-
+  // of westgevel, nok in de lengte). Een gekozen richting (c.dir, c.ridge) en nok (c.high) gaan voor.
+  function formFor(orig, c, W, D) {
+    const { type, low } = c;
+    const dir = (f) => {
+      if (type === 'lessenaar') f.dir = c.dir || orig.dir || (W >= D ? 'voor' : 'links');
+      if (UnitModel.hasRidge(type)) f.ridge = c.ridge || orig.ridge || (W >= D ? 'x' : 'z');
+      return f;
+    };
+    let f;
+    if (type === orig.type) {
+      f = dir(Object.assign({}, orig, { low }));
+      f.high = type === 'plat' ? low : Math.min(LIM.ridge, orig.high + (low - orig.low));
+    } else {
+      f = { type, low, high: low };
+      if (type === 'plat') return f;
+      dir(f);
+      const gable = UnitModel.gableOf(f), span = gable === 'voor' || gable === 'achter' ? W : D;
+      const run = UnitModel.hasRidge(type) ? span / 2 : span;
+      f.high = Math.round(Math.min(LIM.ridge, low + Math.tan(PITCH[type] * Math.PI / 180) * run));
+    }
+    if (type !== 'plat' && c.high > 0) f.high = Math.round(Math.min(LIM.ridge, Math.max(low + RISE_MIN, c.high)));
+    if (type === 'wolf') { f.cutRatio = c.cut > 0 ? c.cut : cutOf(orig) || WOLF_CUT; delete f.cut; }
+    return f;
+  }
+  // Helling (graden) van een dakvorm over zijn overspanning (W/D: maten van de unit of de woning).
+  function pitchOf(f, W, D) {
+    if (f.type === 'plat') return 0;
+    const gable = UnitModel.gableOf(f), span = gable === 'voor' || gable === 'achter' ? W : D;
+    return Math.atan((f.high - f.low) / ((UnitModel.hasRidge(f.type) ? span / 2 : span) || 1)) * 180 / Math.PI;
+  }
+  function houseSize(st) {
+    const xs = HouseModel.unitRects(st);
+    return [Math.max(...xs.map(r => r.x1)) - Math.min(...xs.map(r => r.x0)), Math.max(...xs.map(r => r.z1)) - Math.min(...xs.map(r => r.z0))];
+  }
+  // Dakvorm zoals build hem toepast: per unit (id), of over de hele woning (id null; maten uit de gebouwde st).
+  // Met pitch: de helling in graden.
+  function formOf(model, ch, id, st) {
+    const [W, D] = id ? [ch.units[id].width, ch.units[id].depth] : houseSize(st);
+    const f = formFor(id ? model.forms[id] : model.forms.house, id ? ch.units[id] : ch.house, W, D);
+    return Object.assign(f, { pitch: pitchOf(f, W, D) });
+  }
+
+  // Unit van een punt (woningcoördinaten): de rechthoek waar het punt het diepst in ligt.
+  function ownerOf(rects, x, z) {
+    let best = null, depth = -1;
+    Object.values(rects).forEach(r => {
+      const d = Math.min(x - r.x0, r.x1 - x, z - r.z0, r.z1 - z);
+      if (d > -1 && d > depth) { best = r.id; depth = d; }
+    });
+    return best;
+  }
+
+  // Na een maatwijziging: binnenwanden (woningcoördinaten) schuiven mee met hun unit; een eindpunt tegen de oost- of
+  // zuidgevel van een gewijzigde unit schuift mee met die gevel (de wand rekt mee). Inrichting staat al t.o.v. de
+  // noordwesthoek (of de oostgevel) van zijn unit; staat een stuk tegen de oost- of zuidgevel, dan schuift het mee.
+  function follow(st, before, after) {
+    const shift = (id, x, z) => {
+      const b = before[id], a = after[id];
+      let dx = a.x0 - b.x0, dz = a.z0 - b.z0;
+      if (a.W !== b.W && x >= b.x1 - BAND) dx = a.x1 - b.x1;
+      if (a.D !== b.D && z >= b.z1 - BAND) dz = a.z1 - b.z1;
+      return { x: Math.round(x + dx), z: Math.round(z + dz) };
+    };
+    st.interiorWalls.forEach(iw => {
+      if (iw.seam) return;
+      [['x1', 'z1'], ['x2', 'z2']].forEach(([kx, kz]) => {
+        const id = ownerOf(before, iw[kx], iw[kz]);
+        if (!id) return;
+        const p = shift(id, iw[kx], iw[kz]);
+        iw[kx] = p.x; iw[kz] = p.z;
+      });
+    });
+    st.fixtures.forEach(f => {
+      const b = before[f.unitId], a = after[f.unitId];
+      if (!b || !a) return;
+      const r = f.rot * Math.PI / 180, c = Math.abs(Math.cos(r)), s = Math.abs(Math.sin(r));
+      const ex = c * f.w / 2 + s * f.d / 2, ez = s * f.w / 2 + c * f.d / 2;
+      if (f.anchor !== 'oost' && a.W !== b.W && f.x + ex >= b.W - BAND) f.x += a.W - b.W;
+      if (a.D !== b.D && f.z + ez >= b.D - BAND) f.z += a.D - b.D;
+    });
+  }
+
+  // Keuzes toepassen op een schone kopie van het model.
+  function build(model, ch) {
+    const st = clone(model.base);
+    const before = rectMap(st);
+    st.units.forEach(u => {
+      const c = ch.units[u.id], fl = u.unit.floor.floor;
+      fl.width = c.width; fl.depth = c.depth;
+      UnitModel.clampSize(fl);
+    });
+    const after = rectMap(st);
+    follow(st, before, after);
+
+    // Dakvorm en hoogte; binnenwanden gaan evenveel mee omhoog of omlaag als de goot.
+    const lift = {};
+    if (model.forms.house) {
+      st.settings.roof.house.form = formOf(model, ch, null, st);
+      st.units.forEach(u => { lift[u.id] = ch.house.low - model.forms.house.low; });
+    } else {
+      // Alleen opnieuw opbouwen wat afwijkt van het model; de rest blijft precies zoals het model het heeft.
+      st.units.forEach(u => {
+        const c = ch.units[u.id], c0 = model.initial.units[u.id], fl = u.unit.floor.floor;
+        lift[u.id] = c.low - model.forms[u.id].low;
+        if (['type', 'low', 'high', 'cut', 'dir', 'ridge', 'width', 'depth'].every(k => c[k] === c0[k])) return;
+        UnitModel.applyRoofForm(u.unit, formFor(model.forms[u.id], c, fl.width, fl.depth));
+      });
+    }
+    st.interiorWalls.forEach(iw => {
+      if (iw.seam) return;
+      const id = ownerOf(after, (iw.x1 + iw.x2) / 2, (iw.z1 + iw.z2) / 2), dh = id ? lift[id] : 0;
+      if (!dh) return;
+      const w = iw.wall.wall;
+      ['heightAll', 'heightLeft', 'heightRight'].forEach(k => { if (w[k] > 0) w[k] += dh; });
+    });
+
+    if (ch.covering !== model.initial.covering) st.units.forEach(u => { u.roof.covering = ch.covering; });
+    const fc = ch.facade, F = st.settings.facade;
+    Object.assign(F, { type: fc.type, rabatColor: fc.rabat, stucColor: fc.stuc, felsColor: fc.fels, stone: fc.stone });
+    st.settings.cladding = fc.cladding;
+    Object.assign(st.settings.trasraam, { enabled: ch.trasraam.on }, ch.trasraam.on ? { finish: ch.trasraam.finish, height: ch.trasraam.height } : {});
+    if (model.hasAccent && JSON.stringify(ch.accent) !== JSON.stringify(model.initial.accent)) {
+      const a = ch.accent;
+      accents(st).forEach(o => o.set(a ? Object.assign({ type: a.type }, a.type === 'steen' ? { stone: a.color } : a.type === 'stuc' ? { stuc: a.color } : a.type === 'fels' ? { fels: a.color } : {}) : null));
+    }
+    Object.assign(st.settings.lighting, { mode: ch.lighting.mode, direction: ch.lighting.direction, indoor: ch.lighting.indoor });
+    st.settings.trasraam.capColor = st.settings.roof.ventColor = ch.trim;
+    if (ch.fascia.on !== model.initial.fascia.on) st.units.forEach(u => { u.roof.fascia = ch.fascia.on; });
+    st.settings.roof.fasciaColor = ch.fascia.color;
+    return st;
+  }
+
+  // Wat er aan de indeling schort: per opening (verschoven, ingeklemd, te hoog voor de wand of in geen enkel
+  // wandstuk meer), binnenwand buiten de units, inrichting door een gevel, verdwenen ruimtes en overlappende units.
+  // check vergelijkt met het model zelf, zodat wat daar al zo is geen keuze blokkeert.
+  function issuesOf(st, parts) {
+    const out = new Set();
+    parts.overlaps.forEach(p => out.add('units ' + p.join('+')));
+    parts.rects.forEach(r => { if (r.error) out.add('units ' + r.id); });
+    const ops = (key, config, placed) => config.openings.forEach(o => {
+      if (o.type === 'schoorsteen') return;
+      const W = config.wallWidth;
+      const want = o.anchor === 'right' ? W - o.offset - o.w : o.anchor === 'middle' ? (W - o.w) / 2 + o.offset : o.offset;
+      if (o.overflowing || Math.abs(o.x - want) > 2) out.add(`opening ${key}.${o.id} plek`);
+      if (o.h < o.rawH - 2 || o.hR < o.rawHR - 2 || o.y < o.rawY - 2) out.add(`opening ${key}.${o.id} hoogte`);
+      if (placed && !placed.has(o.id)) out.add(`opening ${key}.${o.id} kwijt`);
+    });
+    // Gevelopeningen staan t.o.v. de hele wand en worden daarna over de wandstukken verdeeld (UnitModel.wallPieces).
+    st.units.forEach(su => {
+      const pu = parts.units.find(u => u.id === su.id);
+      Object.entries(su.unit.walls).forEach(([side, ws]) => {
+        const w = pu && pu.walls.find(x => x.side === side);
+        ops(`${su.id}-${side}`, WallModel.configFromState(ws), new Set(w ? w.pieces.flatMap(p => p.config.openings.map(o => o.id)) : []));
+      });
+    });
+    parts.interior.forEach(p => ops(`bw${p.id}${p.seamUnit || ''}`, p.config));
+    const inside = (r, x, z, m) => r && x >= r.x0 + m && x <= r.x1 - m && z >= r.z0 + m && z <= r.z1 - m;
+    st.interiorWalls.filter(iw => !iw.seam).forEach(iw => {
+      if (![[iw.x1, iw.z1], [iw.x2, iw.z2]].every(([x, z]) => parts.rects.some(r => inside(r, x, z, -1)))) out.add(`indeling bw${iw.id}`);
+    });
+    parts.fixtures.forEach(it => {
+      const r = parts.rects.find(q => q.id === it.unitId);
+      if (it.corners.some(c => !inside(r, c.x, c.z, 100))) out.add(`indeling fx${it.id}`);
+    });
+    return { keys: out, rooms: parts.rooms.rooms.length };
+  }
+
+  // null = in orde, anders een melding voor de klant.
+  function check(model, st, parts) {
+    const now = issuesOf(st, parts), ref = model.reference;
+    const added = [...now.keys].filter(k => !ref.keys.has(k));
+    if (now.rooms < ref.rooms) added.push('indeling ruimtes');
+    if (!added.length) return null;
+    if (added.some(k => k.startsWith('units'))) return 'De units komen dan over elkaar heen.';
+    if (added.some(k => k.startsWith('opening'))) return 'De ramen en deuren van dit model passen dan niet meer.';
+    return 'De indeling van dit model past dan niet meer.';
+  }
+
+  // Grootste of kleinste maat tussen een geldige (ok) en een gevraagde waarde (want) die nog past; rekent zonder 3D.
+  function fit(model, ch, setter, ok, want) {
+    let good = ok, bad = want;
+    while (Math.abs(bad - good) > STEP) {
+      const mid = Math.round((good + bad) / 2 / STEP) * STEP;
+      if (mid === good || mid === bad) break;
+      const c = clone(ch);
+      setter(c, mid);
+      const st = build(model, c);
+      if (check(model, st, HouseModel.computeParts(st, { skip3D: true }))) bad = mid; else good = mid;
+    }
+    return good;
+  }
+
+  // Kerncijfers voor de klant: geen uren, zaagstukken of inkoop.
+  function summary(st, parts) {
+    const totals = HouseModel.computeTotals(parts);
+    const cost = CostModel.compute(parts, totals);
+    const d = HouseModel.computeDimensions(parts, st.settings.groundLevel);
+    return {
+      price: cost.summary.inclBtw, kg: totals.totalKg, units: st.units.length,
+      lengthX: d.lengthX, lengthZ: d.lengthZ, height: d.height, brutoM2: d.brutoM2, leefbaarM2: d.leefbaarM2, inhoudM3: d.inhoudM3
+    };
+  }
+
+  // De keuzes in woorden (voorblad van de PDF): [onderwerp, tekst].
+  // Lessenaar: hoge kant; zadel/wolf: richting van de nok (UnitModel.RIDGES).
+  const SIDES = { voor: 'Noord', achter: 'Zuid', links: 'West', rechts: 'Oost' };
+  const SIDE_NAMES = { voor: 'noord', achter: 'zuid', links: 'west', rechts: 'oost' };
+  const ROOF_NAMES = { plat: 'plat dak', lessenaar: 'lessenaardak', zadel: 'zadeldak', wolf: 'wolfsdak' };
+  const cap = (t) => t.charAt(0).toUpperCase() + t.slice(1);
+  function colorName(type, key) {
+    if (type === 'steen') return `steen ${key}`;
+    const list = type === 'rabat' ? WallModel.RABAT_COLORS : type === 'stuc' ? WallModel.STUC_COLORS : WallModel.FELS.COLORS;
+    return list[key] ? list[key].label.toLowerCase() : '';
+  }
+  function describe(model, ch, st) {
+    const fc = ch.facade, ids = Object.keys(ch.units), multi = ids.length > 1;
+    const facade = (type, color) => [FACADES[type].toLowerCase(), type === 'rabat' ? fc.cladding : null, colorName(type, color)].filter(Boolean).join(', ');
+    const perUnit = (fn) => {
+      const vals = ids.map(id => fn(ch.units[id], id));
+      return !multi || vals.every(v => v === vals[0]) ? vals[0] : ids.map((id, i) => `unit ${id}: ${vals[i]}`).join(', ');
+    };
+    const sloped = ch.house ? ch.house.type !== 'plat' : ids.some(id => ch.units[id].type !== 'plat');
+    const nok = (f) => f.type === 'plat' ? '' : `, ${f.type === 'lessenaar' ? 'hoge kant' : 'nok'} ${nl(f.high / 1000)} m`;
+    const way = (f) => f.type === 'lessenaar' ? ` (hoog aan de ${SIDE_NAMES[f.dir]}kant)` : UnitModel.hasRidge(f.type) ? ` (nok ${UnitModel.RIDGES[f.ridge].toLowerCase()})` : '';
+    const rows = [
+      ['Dakvorm', cap(ch.house ? `${ROOF_NAMES[ch.house.type]}${way(formOf(model, ch, null, st))} over de hele woning`
+        : perUnit((u, id) => ROOF_NAMES[u.type] + way(formOf(model, ch, id))))],
+      ['Hoogte', cap(ch.house ? `goot ${nl(ch.house.low / 1000)} m${nok(formOf(model, ch, null, st))}` : perUnit((u, id) => `goot ${nl(u.low / 1000)} m${nok(formOf(model, ch, id))}`))],
+      ['Dakbedekking', (RoofModel.COVERINGS[sloped ? ch.covering : 'dakleer'] || RoofModel.COVERINGS.dakleer).label],
+      ['Gevel', cap(facade(fc.type, ({ rabat: fc.rabat, stuc: fc.stuc, fels: fc.fels, steen: fc.stone })[fc.type]))]
+    ];
+    const tr = ch.trasraam;
+    rows.push(['Trasraam', tr.on ? `Steen ${tr.finish}, ${nl(tr.height / 1000)} m hoog` : 'Geen']);
+    rows.push(['Dakrand', ch.fascia.on ? `Boeidelen ${RoofModel.FASCIA_COLORS[ch.fascia.color].label.toLowerCase()}` : 'Daktrim']);
+    const trimUse = trimUses(ch);
+    if (trimUse) rows.push(['Zetwerk', `${WallModel.TRIM_COLORS[ch.trim].label} (${trimUse})`]);
+    if (model.hasAccent) rows.push(['Accentgevel', ch.accent ? cap(facade(ch.accent.type, ch.accent.type === 'rabat' ? fc.rabat : ch.accent.color)) : 'Geen']);
+    rows.push(['Buitenverlichting', LIGHTING[ch.lighting.mode] + (ch.lighting.mode === 'gevel' ? ` (${LightingModel.DIRECTIONS[ch.lighting.direction].toLowerCase()})` : '')]);
+    rows.push(['Binnenverlichting', ch.lighting.indoor ? 'Inbouwspots in het plafond' : 'Geen']);
+    return rows;
+  }
+  const nl = (n) => n.toLocaleString('nl-NL', { minimumFractionDigits: 2, maximumFractionDigits: 2 });
+  // Waar de zetwerk-kleur voor geldt (leeg: nergens).
+  const trimUses = (ch) => [ch.trasraam.on ? 'afdekker trasraam' : null, ch.fascia.on ? 'ventilatierooster' : null].filter(Boolean).join(' en ');
+
+  return { DEFAULT_FRAME, FRAMES, STEP, PITCH, SIDES, formOf, FACADES, STONES, LIGHTING, trimUses, create, build, check, fit, summary, describe, colorName };
+})();

js/light/light-pdf.js

@@ -0,0 +1,227 @@
+/*!
+ * Tectum
+ * Copyright © 2026 Machiel Heinen.
+ * Alle rechten voorbehouden. Gebruik uitsluitend met schriftelijke toestemming.
+ * Zie LICENTIE.md.
+ */
+
+// PDF van de light-versie: voorblad "Uw woningontwerp" (beeld, kerncijfers, keuzes, indicatieve prijs, contact en
+// QR-code naar de modelpagina), de aanzichten en plattegrond (HousePdf, klantvariant) en een pagina over de werkwijze.
+window.LightPdf = (() => {
+  const COMPANY = {
+    naam: 'Van Emous Mantelzorgwoningen',
+    adres: ['Keizerswoert 19', '3881 LE Putten'],
+    telefoon: '0341 - 275 147',
+    email: 'info@vanemousmantelzorgwoningen.nl',
+    web: 'https://www.vanemousmantelzorgwoningen.nl',
+    open: 'Ma t/m vr 08:00 - 17:00 uur, za en zo op afspraak'
+  };
+  // Modellen met een eigen pagina op de site; andere verwijzen naar het overzicht.
+  const SITE_MODELS = ['amstel', 'ijssel', 'maas', 'reest', 'rijn', 'waal', 'wetering', 'eem'];
+  const modelUrl = (key) => SITE_MODELS.includes(key) ? `${COMPANY.web}/modellen/model-${key}/` : `${COMPANY.web}/modellen/`;
+
+  // Werkwijze, naar de site (werkwijze/stappenplan).
+  const STEPS = [
+    ['Mag u plaatsen?', 'Wij toetsen vrijblijvend uw perceel aan de regels van uw gemeente en geven een eerste indicatie van de mogelijkheden. Voor zekerheid helpen wij u graag bij het overleg met de gemeente.'],
+    ['Uw ontwerp uitwerken', 'U start vanuit een van onze standaardmodellen of vanuit uw eigen ontwerp. Onze specialisten werken uw wensen uit tot een productietekening. Omdat wij in onze eigen fabriek bouwen, is vrijwel elk ontwerp technisch haalbaar.'],
+    ['Wij gaan bouwen', 'Zodra het ontwerp definitief is en de omgevingsvergunning er is, start de productie in onze fabriek. Tijdens openingstijden bent u welkom om de voortgang te komen bekijken.'],
+    ['Transport en plaatsing', 'De afgebouwde modules worden naar uw perceel gebracht, op de fundering geplaatst en aangesloten op de nutsvoorzieningen. Na de laatste afwerking ontvangt u de sleutel.'],
+    ['Oplevering en service', 'Samen lopen we de woning na, zodat alles klopt met het ontwerp en uw wensen. Ook na de oplevering blijven wij beschikbaar voor service en onderhoud.']
+  ];
+
+  const MAATWERK = ['Dit is pas het begin: alles kan op maat',
+    'Dit ontwerp is gemaakt met een vereenvoudigde versie van onze configurator. Met onze eigen ontwerpsoftware werken wij uw woning ' +
+    'samen met u tot in detail uit: een keuken op maat, een andere indeling met extra binnenwanden, of ramen en deuren op een andere ' +
+    'plek en in een ander formaat. U bent van harte welkom voor een vrijblijvend adviesgesprek, waarin we samen uw wensen en ' +
+    'mogelijkheden doornemen. Ook staat onze fabriek in Putten open voor bezoek: kom kijken hoe onze woningen gebouwd worden en ervaar ' +
+    'de kwaliteit met eigen ogen. Maak gerust een afspraak; wij denken graag met u mee.'];
+
+  const ORANGE = [185, 89, 19], INK = [33, 33, 33], MUTED = [91, 102, 115], SOFT = [249, 246, 240], LINE = [226, 231, 238];
+  const PW = 420, PH = 297, M = 20;
+  const nl = (n, d = 0) => n.toLocaleString('nl-NL', { minimumFractionDigits: d, maximumFractionDigits: d });
+  const meters = (mm) => `${nl(mm / 1000, 2)} m`;
+
+  // QR-code als vlakken (scherp bij elke vergroting), met witte rand.
+  function drawQr(doc, text, x, y, size) {
+    const qr = qrcode(0, 'M');
+    qr.addData(text);
+    qr.make();
+    const n = qr.getModuleCount(), quiet = 2, s = size / (n + 2 * quiet);
+    doc.setFillColor(255, 255, 255);
+    doc.rect(x, y, size, size, 'F');
+    doc.setFillColor(0, 0, 0);
+    for (let r = 0; r < n; r++) {
+      for (let c = 0; c < n; c++) {
+        if (!qr.isDark(r, c)) continue;
+        let e = c;
+        while (e + 1 < n && qr.isDark(r, e + 1)) e++;
+        doc.rect(x + (quiet + c) * s, y + (quiet + r) * s, (e - c + 1) * s + 0.02, s + 0.02, 'F');
+        c = e;
+      }
+    }
+  }
+
+  function logo(doc, x, y, h) {
+    const L = window.TECTUM_LOGO;
+    if (L) doc.addImage(L.png, 'PNG', x, y, h * L.aspect, h, 'tectum-logo', 'FAST');
+    else { doc.setFont('helvetica', 'bold'); doc.setFontSize(14); doc.setTextColor(...INK); doc.text(COMPANY.naam, x, y + h * 0.7); }
+  }
+
+  // Contactblok met QR-code; y = bovenkant.
+  function contactBand(doc, y, url, label) {
+    doc.setDrawColor(...LINE);
+    doc.setLineWidth(0.3);
+    doc.line(M, y, PW - M, y);
+    doc.setTextColor(...INK);
+    doc.setFont('helvetica', 'bold');
+    doc.setFontSize(12);
+    doc.text(COMPANY.naam, M, y + 9);
+    doc.setFont('helvetica', 'normal');
+    doc.setFontSize(10);
+    doc.setTextColor(...MUTED);
+    const col = (x, lines) => lines.forEach((t, i) => doc.text(t, x, y + 16 + i * 5.2));
+    col(M, COMPANY.adres.concat([COMPANY.open]));
+    col(M + 95, [`Telefoon ${COMPANY.telefoon}`, COMPANY.email, COMPANY.web.replace(/^https:\/\//, '')]);
+    const q = 34;
+    drawQr(doc, url, PW - M - q, y + 4, q);
+    doc.setFontSize(9);
+    doc.setTextColor(...INK);
+    doc.text(doc.splitTextToSize(label, 70), PW - M - q - 4, y + 12, { align: 'right' });
+    doc.setTextColor(...MUTED);
+    doc.setFontSize(8);
+    doc.text(url.replace(/^https:\/\//, ''), PW - M - q - 4, y + 30, { align: 'right' });
+  }
+
+  function keyValues(doc, x, y, w, rows, title) {
+    doc.setFont('helvetica', 'bold');
+    doc.setFontSize(12);
+    doc.setTextColor(...INK);
+    doc.text(title, x, y);
+    let yy = y + 8;
+    rows.forEach(([k, v]) => {
+      doc.setFont('helvetica', 'normal');
+      doc.setFontSize(10);
+      doc.setTextColor(...MUTED);
+      doc.text(k, x, yy);
+      doc.setTextColor(...INK);
+      const lines = doc.splitTextToSize(String(v), w - 42);
+      doc.text(lines, x + 42, yy);
+      yy += 5.4 * lines.length + 0.8;
+    });
+    return yy;
+  }
+
+  function cover(doc, d) {
+    doc.setFillColor(...SOFT);
+    doc.rect(0, 0, PW, PH, 'F');
+    logo(doc, M, 18, 14);
+    doc.setTextColor(...INK);
+    doc.setFont('helvetica', 'bold');
+    doc.setFontSize(34);
+    doc.text('Uw woningontwerp', M, 62);
+    doc.setTextColor(...ORANGE);
+    doc.setFontSize(20);
+    doc.text(d.label, M, 74);
+    doc.setFont('helvetica', 'normal');
+    doc.setFontSize(10);
+    doc.setTextColor(...MUTED);
+    doc.text(`Samengesteld op ${new Date().toLocaleDateString('nl-NL', { day: 'numeric', month: 'long', year: 'numeric' })}`, M, 82);
+
+    const i = d.info;
+    let y = keyValues(doc, M, 98, 150, [
+      ['Buitenmaten', `${meters(i.lengthX)} × ${meters(i.lengthZ)}`], ['Bouwhoogte', meters(i.height)],
+      ['Vloeroppervlak', `${nl(i.brutoM2, 1)} m² bruto, ${nl(i.leefbaarM2, 1)} m² leefbaar`], ['Inhoud', `${nl(i.inhoudM3, 0)} m³`],
+      ['Modules', String(i.units)]
+    ], 'Kerncijfers');
+    y = keyValues(doc, M, y + 6, 150, d.choices, 'Uw keuzes');
+
+    // Prijs
+    const py = Math.max(y + 4, 196);
+    doc.setFillColor(...ORANGE);
+    doc.roundedRect(M, py, 150, 30, 3, 3, 'F');
+    doc.setTextColor(255, 255, 255);
+    doc.setFont('helvetica', 'normal');
+    doc.setFontSize(10);
+    doc.text('Indicatieve prijs', M + 7, py + 9);
+    doc.setFont('helvetica', 'bold');
+    doc.setFontSize(24);
+    doc.text(CostModel.eur(Math.round(i.price / 100) * 100), M + 7, py + 21);
+    doc.setFont('helvetica', 'normal');
+    doc.setFontSize(9);
+    doc.text('incl. btw, onder voorbehoud', M + 7, py + 27);
+
+    // Beeld van de woning
+    const bx = 190, by = 18, bw = PW - M - bx, bh = 206;
+    if (d.image) {
+      const ar = d.image.width / d.image.height, w = Math.min(bw, bh * ar), h = w / ar;
+      doc.addImage(d.image.url, 'JPEG', bx + (bw - w) / 2, by + (bh - h) / 2, w, h);
+    }
+    contactBand(doc, 240, d.url, `Bekijk ${d.label} online`);
+    doc.setFontSize(7);
+    doc.setTextColor(...MUTED);
+    doc.text('Dit ontwerp en de prijs zijn indicatief; hieraan kunnen geen rechten worden ontleend.', M, PH - 6);
+  }
+
+  function process(doc, d) {
+    doc.setFillColor(...SOFT);
+    doc.rect(0, 0, PW, PH, 'F');
+    logo(doc, M, 18, 14);
+    doc.setTextColor(...INK);
+    doc.setFont('helvetica', 'bold');
+    doc.setFontSize(28);
+    doc.text('Hoe verloopt het traject?', M, 62);
+    doc.setFont('helvetica', 'normal');
+    doc.setFontSize(12);
+    doc.setTextColor(...MUTED);
+    doc.text(doc.splitTextToSize('Van het eerste idee tot de sleuteloverdracht: wij begeleiden u in duidelijke stappen naar een mantelzorgwoning die bij u past. Dit ontwerp is de start van stap 2.', 260), M, 74);
+
+    const gap = 8, w = (PW - 2 * M - gap * (STEPS.length - 1)) / STEPS.length, y = 92, h = 98;
+    STEPS.forEach(([title, text], k) => {
+      const x = M + k * (w + gap);
+      doc.setFillColor(255, 255, 255);
+      doc.setDrawColor(...LINE);
+      doc.roundedRect(x, y, w, h, 3, 3, 'FD');
+      doc.setFillColor(...ORANGE);
+      doc.circle(x + 12, y + 14, 6.5, 'F');
+      doc.setTextColor(255, 255, 255);
+      doc.setFont('helvetica', 'bold');
+      doc.setFontSize(13);
+      doc.text(String(k + 1), x + 12, y + 14, { align: 'center', baseline: 'middle' });
+      doc.setTextColor(...INK);
+      doc.setFontSize(13);
+      doc.text(doc.splitTextToSize(title, w - 12), x + 6, y + 32);
+      doc.setFont('helvetica', 'normal');
+      doc.setFontSize(10);
+      doc.setTextColor(...MUTED);
+      doc.text(doc.splitTextToSize(text, w - 12), x + 6, y + 44, { lineHeightFactor: 1.4 });
+    });
+    // Maatwerk: dit ontwerp is een begin, de eigen software kan veel verder.
+    const by = 195, bh = 40;
+    doc.setFillColor(255, 255, 255);
+    doc.setDrawColor(...LINE);
+    doc.roundedRect(M, by, PW - 2 * M, bh, 3, 3, 'FD');
+    doc.setFillColor(...ORANGE);
+    doc.rect(M, by + 3, 2.5, bh - 6, 'F');
+    doc.setFont('helvetica', 'bold');
+    doc.setFontSize(13);
+    doc.setTextColor(...INK);
+    doc.text(MAATWERK[0], M + 9, by + 10);
+    doc.setFont('helvetica', 'normal');
+    doc.setFontSize(10.5);
+    doc.setTextColor(...MUTED);
+    doc.text(doc.splitTextToSize(MAATWERK[1], PW - 2 * M - 18), M + 9, by + 17, { lineHeightFactor: 1.35 });
+    contactBand(doc, 240, d.url, `Bekijk ${d.label} online`);
+  }
+
+  // d: { st, label, info, choices: [[label, tekst]], url, image: { url, width, height } | null }
+  function generate(d) {
+    const doc = PdfSheet.createDoc();
+    cover(doc, d);
+    HousePdf.generate(d.st, { customer: true, doc, pageOffset: 1, pageTotal: 4 });
+    doc.addPage('a3', 'landscape');
+    process(doc, d);
+    return doc;
+  }
+
+  return { COMPANY, modelUrl, generate };
+})();

js/light/light.js

@@ -0,0 +1,787 @@
+/*!
+ * Tectum
+ * Copyright © 2026 Machiel Heinen.
+ * Alle rechten voorbehouden. Gebruik uitsluitend met schriftelijke toestemming.
+ * Zie LICENTIE.md.
+ */
+
+// Light-versie voor de modelpagina's: één model in 3D, een paar keuzes en de kerncijfers; opslaan = PDF met
+// aanzichten en plattegrond. Alle logica in LightModel (en daarachter de gewone modellen).
+// Inbedden: <div class="tectum-light" data-model="amstel" data-url="…"></div> (vanzelf gemount), of
+// TectumLight.mount(el, { model, frames, url, modelViewer }); url = adres voor de QR-code in de PDF (standaard de
+// modelpagina), modelViewer = adres van model-viewer (standaard js/vendor naast dit script).
+// Knop rechtsboven in de weergave: op een telefoon/tablet het ontwerp als GLB in model-viewer, met AR (WebXR, Scene
+// Viewer, Quick Look); op de desktop schermvullend.
+window.TectumLight = (() => {
+  const esc = UI.esc;
+  // model-viewer (Apache-2.0, eigen three.js ingebakken) pas laden bij de eerste keer AR.
+  const SCRIPT_SRC = (document.currentScript && document.currentScript.src) || location.href;
+  let mvLoading = null;
+  function loadModelViewer(src) {
+    if (window.customElements.get('model-viewer')) return Promise.resolve();
+    if (!mvLoading) mvLoading = new Promise((ok, fail) => {
+      const s = document.createElement('script');
+      s.src = src;
+      s.onload = ok;
+      s.onerror = () => { mvLoading = null; fail(new Error(`model-viewer niet geladen (${src})`)); };
+      document.head.appendChild(s);
+    });
+    return mvLoading;
+  }
+  const AR_DEVICE = /android|iphone|ipad|ipod/i.test(navigator.userAgent) || (navigator.platform === 'MacIntel' && navigator.maxTouchPoints > 1);
+  const nl = (n, d = 0) => n.toLocaleString('nl-NL', { minimumFractionDigits: d, maximumFractionDigits: d });
+  const meters = (mm) => `${nl(mm / 1000, 2)} m`;
+  const clone = (o) => JSON.parse(JSON.stringify(o));
+
+  // Doorsnede: snijhoogte boven de vloer (mm), zoals de doorsnede van de configurator.
+  const SECTION = { start: 1500, min: 300, max: 3000 };
+  const HINTS = { '3d': 'Slepen = draaien · rechts of Shift+slepen = schuiven · klik en scroll = zoomen', cut: 'Slepen = draaien · rechts of Shift+slepen = schuiven · klik en scroll = zoomen', plan: 'Noord boven · maten in mm' };
+
+  // tl-wrap is het raster; .tectum-light zelf is de container voor de container queries (breedte van de tool, niet
+  // van het scherm: in de HUGO-site staat hij in een Bootstrap col-12).
+  const TEMPLATE = `<div class="tl-wrap">
+    <div class="tl-stage">
+      <div class="tl-3d"></div>
+      <canvas class="tl-plan" aria-label="Plattegrond, noord boven"></canvas>
+      <div class="tl-viewbar" role="group" aria-label="Weergave">
+        <button type="button" data-view="3d" class="on"><i class="bi bi-badge-3d"></i>3D</button>
+        <button type="button" data-view="cut" title="Wanden afgesneden op een hoogte boven de vloer"><i class="bi bi-scissors"></i>Doorsnede</button>
+        <button type="button" data-view="plan"><i class="bi bi-grid-1x2"></i>Plattegrond</button>
+      </div>
+      <label class="tl-cutbar"><span>Snijhoogte</span>
+        <input type="range" min="${SECTION.min}" max="${SECTION.max}" step="50" value="${SECTION.start}" aria-label="Snijhoogte boven de vloer">
+        <output>${meters(SECTION.start)}</output></label>
+      <button type="button" class="tl-xbtn" hidden></button>
+      <div class="tl-hint"></div>
+      <div class="tl-busy" aria-live="polite"><span class="tl-spinner"></span>Berekenen…</div>
+      <div class="tl-toast" role="status" aria-live="polite"></div>
+    </div>
+    <aside class="tl-panel">
+      <header class="tl-head"><h2 class="tl-title"></h2><div class="tl-sub"></div></header>
+      <div class="tl-sections"></div>
+      <div class="tl-facts"></div>
+      <div class="tl-buy"></div>
+    </aside></div>`;
+
+  function mount(root, opts) {
+    const o = opts || {};
+    const model = LightModel.create(o.model || root.dataset.model, { frames: o.frames });
+    let ch = clone(model.initial);
+    let unitSel = model.base.units[0].id;
+    let cur = null; // { st, parts, info }
+    root.classList.add('tectum-light');
+    root.innerHTML = TEMPLATE;
+    const $ = (sel) => root.querySelector(sel);
+    $('.tl-title').textContent = model.label;
+
+    // 3D: afgewerkte woning (zoals de render-export), dag-omgeving.
+    const stage = $('.tl-3d');
+    const scene = new THREE.Scene();
+    scene.background = new THREE.Color(0xdfe6ec);
+    const camera = new THREE.PerspectiveCamera(40, 1, 0.1, 400);
+    const renderer = new THREE.WebGLRenderer({ antialias: true });
+    renderer.setPixelRatio(Math.min(2, window.devicePixelRatio || 1));
+    renderer.shadowMap.enabled = true;
+    renderer.localClippingEnabled = true;
+    stage.appendChild(renderer.domElement);
+    const controls = new THREE.OrbitControls(camera, renderer.domElement);
+    const ambient = new THREE.AmbientLight(0xffffff, 0.6);
+    const sun = new THREE.DirectionalLight(0xffffff, 0.8);
+    sun.position.set(5, 8, 5);
+    scene.add(ambient, sun);
+    const sky = Skybox.createEnvironment(scene);
+    const mats = {
+      wallMaterials: WallModel.createMaterials(), floorMaterials: FloorModel.createMaterials(), roofMaterials: RoofModel.createMaterials(),
+      lightingMaterials: LightingModel.createMaterials(), sandwichMaterials: SandwichModel.createMaterials(), postMaterials: PostModel.createMaterials(),
+      chimneyMaterials: ChimneyModel.createMaterials(), elektraMaterials: ElektraModel.createMaterials()
+    };
+    const S0 = model.base.settings;
+    if (S0.interiorPaint) mats.wallMaterials.spaanplaatMaterial.color.set(S0.interiorColor);
+    mats.roofMaterials.ceilingMaterial.color.set(S0.ceilingColor || '#f4f3ef');
+    const compute = (st) => HouseModel.computeParts(st, Object.assign({ layers: ViewLayers.all(), finishedOnly: true }, mats));
+    const disposeGeo = (g) => g && g.traverse(x => { if (x.geometry) x.geometry.dispose(); });
+    const rootsOf = HouseModel.rootGroups;
+
+    // Weergave: 3D, doorsnede (dak en lampen weg, wanden en wat erin zit afgesneden, snede wit afgedekt) of plattegrond.
+    let group = null, caps = null, view = '3d', fitted = false, center = { x: 0, z: 0, size: 10 }, sectionMM = SECTION.start;
+    const poses = {};
+    const cutPlane = new THREE.Plane(new THREE.Vector3(0, -1, 0), 0);
+    const capMaterial = new THREE.MeshBasicMaterial({ color: 0xffffff });
+    function clip(g, planes) {
+      if (g) g.traverse(x => (Array.isArray(x.material) ? x.material : x.material ? [x.material] : []).forEach(m => {
+        if ((m.clippingPlanes || []).length === planes.length) return;
+        m.clippingPlanes = planes;
+        m.needsUpdate = true;
+      }));
+    }
+    function applyView() {
+      if (!cur) return;
+      const p = cur.parts, cut = view === 'cut';
+      p.units.forEach(u => { if (u.roof.group) u.roof.group.visible = !cut; });
+      [p.roofEdgeGroup, p.postsGroup].forEach(g => { if (g) g.visible = !cut; });
+      if (p.roomsGroup && p.roomsGroup.userData.ceilings) p.roomsGroup.userData.ceilings.visible = !cut;
+      const planes = cut ? [cutPlane] : [];
+      HouseModel.allWallPieces(p).forEach(x => clip(x.group, planes));
+      // Lampen snijden mee: binnenspots onder de snijhoogte blijven zichtbaar, niets zweeft.
+      [p.elektraGroup, p.chimneysGroup, p.roomsGroup, p.fixturesGroup, p.lightingGroup].forEach(g => clip(g, planes));
+      placeCut();
+      if (view === 'plan') drawPlan();
+    }
+    // fn in de gewone 3D-weergave (dak erop, niets afgesneden), daarna terug naar de gekozen weergave.
+    function as3d(fn) {
+      const prev = view;
+      if (prev !== '3d') { view = '3d'; applyView(); }
+      try { return fn(); } finally { if (prev !== '3d') { view = prev; applyView(); } }
+    }
+    // Snijvlak en witte afdekking op de snijhoogte; alleen dit bij het schuiven.
+    function placeCut() {
+      const p = cur.parts, floorTop = Math.max(...p.units.map(u => u.layout.floorTop));
+      cutPlane.constant = (floorTop + sectionMM) * 0.001;
+      if (caps) { group.remove(caps); disposeGeo(caps); caps = null; }
+      if (view === 'cut') { caps = HouseModel.sectionCaps(p, floorTop + sectionMM, capMaterial, ViewLayers.all()); group.add(caps); }
+    }
+    const cutInput = $('.tl-cutbar input');
+    // Niet hoger dan de goot (plat dak: de dakhoogte); bij units met een andere goot de laagste, zodat de snede altijd
+    // door alle gevels gaat. Loopt mee met de gekozen hoogte.
+    function fitCutRange() {
+      const lows = ch.house ? [ch.house.low] : Object.values(ch.units).map(u => u.low);
+      const max = Math.max(SECTION.min, Math.floor(Math.min(...lows) / 50) * 50);
+      cutInput.max = max;
+      if (sectionMM > max) sectionMM = max;
+      cutInput.value = sectionMM;
+      $('.tl-cutbar output').textContent = meters(sectionMM);
+    }
+    cutInput.addEventListener('input', () => {
+      sectionMM = Number(cutInput.value);
+      $('.tl-cutbar output').textContent = meters(sectionMM);
+      if (cur) placeCut();
+    });
+    // Elke weergave onthoudt zijn eigen camerastand; de doorsnede begint schuin van boven.
+    function setView(v) {
+      if (v === view) return;
+      if (view !== 'plan') poses[view] = { pos: camera.position.clone(), target: controls.target.clone() };
+      view = v;
+      if (v !== 'plan') {
+        const pose = poses[v];
+        if (pose) { camera.position.copy(pose.pos); controls.target.copy(pose.target); }
+        else {
+          controls.target.set(center.x, 0.6, center.z);
+          camera.position.set(center.x - center.size * 0.45, center.size * 1.05 + 2, center.z + center.size * 0.75);
+        }
+        controls.update();
+      }
+      root.classList.toggle('view-plan', v === 'plan');
+      root.classList.toggle('view-cut', v === 'cut');
+      root.querySelectorAll('[data-view]').forEach(b => b.classList.toggle('on', b.dataset.view === v));
+      $('.tl-hint').textContent = HINTS[v];
+      applyView();
+    }
+    $('.tl-hint').textContent = HINTS['3d'];
+    root.querySelector('.tl-viewbar').addEventListener('click', (e) => { const b = e.target.closest('[data-view]'); if (b) setView(b.dataset.view); });
+
+    function show(st, parts) {
+      if (group) { scene.remove(group); disposeGeo(group); caps = null; }
+      fitCutRange();
+      HouseModel.placeGroups(parts);
+      group = new THREE.Group();
+      rootsOf(parts).forEach(g => group.add(g));
+      scene.add(group);
+      cur = { st, parts, info: LightModel.summary(st, parts) };
+      const rs = parts.rects, toM = 0.001;
+      const bx0 = Math.min(...rs.map(r => r.x0)), bx1 = Math.max(...rs.map(r => r.x1));
+      const bz0 = Math.min(...rs.map(r => r.z0)), bz1 = Math.max(...rs.map(r => r.z1));
+      center = { x: (bx0 + bx1) / 2 * toM, z: (bz0 + bz1) / 2 * toM, size: Math.max(bx1 - bx0, bz1 - bz0) * toM };
+      const groundY = (Math.max(...parts.units.map(u => u.layout.floorTop)) - st.settings.groundLevel - 2) * toM;
+      sky.fitTo(group, groundY);
+      Skybox.apply('day', { env: sky, controls, sun, ambient, base: { ambient: 0.6, sun: 0.8 }, shadowRoot: group });
+      if (!fitted) {
+        controls.target.set(center.x, 1.2, center.z);
+        camera.position.set(center.x - center.size * 0.9, center.size * 0.7, center.z - center.size * 1.3);
+        controls.update();
+        fitted = true;
+      }
+      applyView();
+      HousePdf.materialThumbUrls(st).forEach(PdfSheet.preloadImage);
+      renderPanel();
+      renderSummary();
+    }
+
+    // Plattegrond (noord boven): ruimtes met naam en netto m², wanden met kozijnen en draairichting, inrichting,
+    // dakrand, palen en de buitenmaten. Zelfde gegevens als de PDF-plattegrond.
+    function drawPlan() {
+      const cv = $('.tl-plan'), W = cv.clientWidth, H = cv.clientHeight;
+      if (!cur || !W || !H) return;
+      const dpr = Math.min(2, window.devicePixelRatio || 1);
+      cv.width = Math.round(W * dpr); cv.height = Math.round(H * dpr);
+      const ctx = cv.getContext('2d');
+      ctx.setTransform(dpr, 0, 0, dpr, 0, 0);
+      ctx.fillStyle = '#ffffff';
+      ctx.fillRect(0, 0, W, H);
+      const p = cur.parts, rs = p.rects;
+      const ext = rs.concat(p.units.map(u => u.roof.rect));
+      const bx0 = Math.min(...ext.map(r => r.x0)), bx1 = Math.max(...ext.map(r => r.x1));
+      const bz0 = Math.min(...ext.map(r => r.z0)), bz1 = Math.max(...ext.map(r => r.z1));
+      const top = 64, side = 56;
+      const scale = Math.min((W - 2 * side) / (bx1 - bx0), (H - top - side) / (bz1 - bz0));
+      const ox = W / 2 - (bx0 + bx1) / 2 * scale, oy = top + (H - top - side) / 2 - (bz0 + bz1) / 2 * scale;
+      const P = (x, z) => [ox + x * scale, oy + z * scale];
+      const path = (pts, closed) => { ctx.beginPath(); pts.forEach((q, i) => ctx[i ? 'lineTo' : 'moveTo'](...P(q.x, q.z))); if (closed) ctx.closePath(); };
+      const corners = (pl, lx0, lx1) => { const t = pl.thickness / 2; return [[lx0, -t], [lx1, -t], [lx1, t], [lx0, t]].map(([a, b]) => UnitModel.localToWorld(pl, a, b)); };
+      const rgba = (hex, a) => `rgba(${parseInt(hex.slice(1, 3), 16)}, ${parseInt(hex.slice(3, 5), 16)}, ${parseInt(hex.slice(5, 7), 16)}, ${a})`;
+      ctx.lineJoin = 'round';
+
+      // Dakrand
+      ctx.setLineDash([5, 4]); ctx.strokeStyle = '#9aa3ad'; ctx.lineWidth = 1;
+      if (p.roofEdge) p.roofEdge.segments.forEach(sg => { path([sg.outerA, sg.outerB]); ctx.stroke(); });
+      else p.units.forEach(u => { const [x, y] = P(u.roof.rect.x0, u.roof.rect.z0); ctx.strokeRect(x, y, u.roof.rect.W * scale, u.roof.rect.D * scale); });
+      ctx.setLineDash([]);
+
+      // Ruimtes
+      const R = p.rooms;
+      R.rooms.forEach(r => { ctx.fillStyle = rgba(r.color, 0.22); r.rects.forEach(c => { const [x, y] = P(c.x0, c.z0); ctx.fillRect(x, y, (c.x1 - c.x0) * scale, (c.z1 - c.z0) * scale); }); });
+
+      // Inrichting
+      (p.fixtures || []).forEach(it => FixtureModel.planShapes(it).forEach(sh => {
+        ctx.strokeStyle = '#8b939b';
+        ctx.lineWidth = sh.kind === 'thin' ? 0.6 : 1;
+        ctx.setLineDash(sh.kind === 'dash' ? [3, 3] : []);
+        if (sh.circle) { ctx.beginPath(); ctx.arc(...P(sh.circle.x, sh.circle.z), Math.max(1, sh.circle.r * scale), 0, Math.PI * 2); ctx.stroke(); return; }
+        if (sh.text) return;
+        path(sh.pts, sh.closed);
+        if (sh.fill) { ctx.fillStyle = 'rgba(139, 147, 155, 0.18)'; ctx.fill(); }
+        ctx.stroke();
+      }));
+      ctx.setLineDash([]);
+
+      // Wanden met openingen en kozijnsymbolen
+      const piece = (x, fill) => {
+        const pl = x.place, Wp = pl.width;
+        path(corners(pl, -Wp / 2, Wp / 2), true);
+        ctx.fillStyle = fill; ctx.fill();
+        x.config.openings.filter(op => op.type !== 'schoorsteen').forEach(op => {
+          path(corners(pl, -Wp / 2 + op.x, -Wp / 2 + op.x + op.w), true);
+          ctx.fillStyle = '#ffffff'; ctx.fill();
+          ctx.strokeStyle = '#33383d'; ctx.lineWidth = 0.8; ctx.stroke();
+          if (!op.fill) return;
+          KozijnModel.planSymbol(op, op.fill, { zIn: -pl.thickness / 2, zOut: pl.thickness / 2 }).forEach(sh => {
+            ctx.lineWidth = sh.kind === 'leaf' ? 1.3 : 0.8;
+            ctx.setLineDash(sh.kind === 'arc' || sh.kind === 'rail' ? [3, 3] : []);
+            path(sh.pts.map(q => UnitModel.localToWorld(pl, -Wp / 2 + op.x + q.x, q.z)), !!sh.closed);
+            ctx.stroke();
+          });
+          ctx.setLineDash([]);
+        });
+      };
+      p.units.forEach(u => u.walls.forEach(w => w.pieces.forEach(x => piece(x, '#3d4247'))));
+      p.interior.forEach(x => piece(x, '#7a828a'));
+      ctx.fillStyle = '#a07c54';
+      p.posts.posts.forEach(pp => { const [x, y] = P(pp.x - pp.size / 2, pp.z - pp.size / 2); ctx.fillRect(x, y, pp.size * scale, pp.size * scale); });
+      p.posts.walls.forEach(w => { const [x, y] = P(w.x0, w.z0); ctx.fillStyle = '#3d4247'; ctx.fillRect(x, y, (w.x1 - w.x0) * scale, (w.z1 - w.z0) * scale); });
+      (p.chimneys || []).forEach(c => { path(c.footprint, true); ctx.fillStyle = '#8b8f93'; ctx.fill(); });
+      // Binnenspots
+      ctx.fillStyle = '#ffd36b'; ctx.strokeStyle = '#a07a1e'; ctx.lineWidth = 0.8;
+      (p.lighting.indoor || []).forEach(sp => { ctx.beginPath(); ctx.arc(...P(sp.x, sp.z), Math.max(2.5, 90 * scale), 0, Math.PI * 2); ctx.fill(); ctx.stroke(); });
+
+      // Ruimtenamen
+      ctx.textAlign = 'center'; ctx.textBaseline = 'middle';
+      const fs = Math.max(9, Math.min(13, scale * 260));
+      R.rooms.forEach(r => {
+        const [x, y] = P(r.label.x, r.label.z);
+        ctx.fillStyle = '#212121'; ctx.font = `600 ${fs}px sans-serif`;
+        ctx.fillText(r.name, x, y - fs * 0.6);
+        ctx.fillStyle = '#5b6673'; ctx.font = `${fs * 0.9}px sans-serif`;
+        ctx.fillText(`${nl(r.areaM2, 1)} m²`, x, y + fs * 0.6);
+      });
+
+      // Buitenmaten (units) en noordpijl
+      const ux0 = Math.min(...rs.map(r => r.x0)), ux1 = Math.max(...rs.map(r => r.x1));
+      const uz0 = Math.min(...rs.map(r => r.z0)), uz1 = Math.max(...rs.map(r => r.z1));
+      ctx.strokeStyle = '#1d5f99'; ctx.fillStyle = '#1d5f99'; ctx.lineWidth = 1; ctx.font = '12px sans-serif';
+      const dim = (a, b, horiz, at) => {
+        const [x0, y0] = horiz ? P(a, 0) : P(0, a), [x1, y1] = horiz ? P(b, 0) : P(0, b);
+        const A = horiz ? [x0, at] : [at, y0], B = horiz ? [x1, at] : [at, y1];
+        ctx.beginPath(); ctx.moveTo(...A); ctx.lineTo(...B);
+        [A, B].forEach(([x, y]) => { ctx.moveTo(x - 4, y + 4); ctx.lineTo(x + 4, y - 4); ctx.moveTo(...(horiz ? [x, y - 6] : [x - 6, y])); ctx.lineTo(...(horiz ? [x, y + 6] : [x + 6, y])); });
+        ctx.stroke();
+        ctx.save();
+        ctx.translate((A[0] + B[0]) / 2, (A[1] + B[1]) / 2);
+        if (!horiz) ctx.rotate(-Math.PI / 2);
+        ctx.fillText(nl(Math.round(b - a)), 0, -9);
+        ctx.restore();
+      };
+      dim(ux0, ux1, true, P(0, bz0)[1] - 22);
+      dim(uz0, uz1, false, P(bx0, 0)[0] - 22);
+      const nx = W - 28, ny = top + 6;
+      ctx.beginPath(); ctx.moveTo(nx, ny); ctx.lineTo(nx - 7, ny + 18); ctx.lineTo(nx + 7, ny + 18); ctx.closePath(); ctx.fill();
+      ctx.fillText('N', nx, ny + 30);
+    }
+
+    // Keuze doorrekenen; past de indeling niet, dan blijft de vorige keuze staan. Bij een maat (fit) eerst de
+    // dichtstbijzijnde maat zoeken die nog wel past.
+    let toastTimer = null;
+    function toast(msg) {
+      const t = $('.tl-toast');
+      t.textContent = msg;
+      t.classList.add('on');
+      clearTimeout(toastTimer);
+      toastTimer = setTimeout(() => t.classList.remove('on'), 5000);
+    }
+    let busy = false;
+    function tryApply(next, fit) {
+      if (busy) return;
+      busy = true;
+      root.classList.add('is-busy');
+      setTimeout(() => {
+        try {
+          let st = LightModel.build(model, next), parts = compute(st);
+          let msg = LightModel.check(model, st, parts), note = null;
+          if (msg && fit) {
+            rootsOf(parts).forEach(disposeGeo);
+            const v = LightModel.fit(model, next, fit.set, fit.ok, fit.want);
+            if (v !== fit.ok) {
+              fit.set(next, v);
+              st = LightModel.build(model, next);
+              parts = compute(st);
+              note = `${msg} Dichtstbijzijnde maat die past: ${meters(v)}.`;
+              msg = LightModel.check(model, st, parts);
+            } else parts = null;
+          }
+          if (msg) {
+            if (parts) rootsOf(parts).forEach(disposeGeo);
+            toast(msg);
+            renderPanel();
+          } else {
+            ch = next;
+            show(st, parts);
+            if (note) toast(note);
+          }
+        } catch (err) {
+          console.error(err);
+          toast('Dit kon niet worden doorgerekend.');
+          renderPanel();
+        }
+        busy = false;
+        root.classList.remove('is-busy');
+      }, 30);
+    }
+
+    // Paneel: alleen keuzes, geen vrije invoer.
+    const field = (label, html, extra, cls) => `<div class="tl-field${cls ? ' ' + cls : ''}"><div class="tl-label"><span>${label}</span>${extra ? `<span class="tl-val">${extra}</span>` : ''}</div>${html}</div>`;
+    // disabled(k) geeft false of de reden (tooltip).
+    const seg = (key, options, value, disabled) => `<div class="tl-seg" role="radiogroup">${Object.entries(options).map(([k, label]) => {
+      const why = disabled && disabled(k);
+      return `<button type="button" role="radio" aria-checked="${k === value}" class="${k === value ? 'on' : ''}" data-set="${key}" data-val="${esc(k)}"${why ? ` disabled title="${esc(why)}"` : ''}>${esc(label)}</button>`;
+    }).join('')}</div>`;
+    // Kleurstalen; de naam van de gekozen kleur komt in de labelregel (swatchField).
+    const swatches = (key, items, value, disabled) => {
+      const sel = items.find(it => it.key === value);
+      return `<div class="tl-swatches" role="radiogroup" data-name="${sel ? esc(sel.label) : ''}">${items.map(it => {
+        const why = disabled && disabled(it.key);
+        return `<button type="button" role="radio" aria-checked="${it.key === value}" class="tl-sw${it.key === value ? ' on' : ''}" data-set="${key}" data-val="${esc(it.key)}" title="${esc(why ? `${it.label}: ${why}` : it.label)}" aria-label="${esc(it.label)}" style="--sw:${it.hex}"${why ? ' disabled' : ''}>${it.img ? `<img src="${esc(it.img)}" alt="" loading="lazy">` : ''}</button>`;
+      }).join('')}</div>`;
+    };
+    const swatchField = (label, html) => field(label, html, (html.match(/data-name="([^"]*)"/) || [])[1]);
+    // Het bereik omvat altijd de maat van het model zelf; extra staat achter de waarde (bijv. de helling).
+    const slider = (key, label, value, range, hint, extra) => {
+      const lo = Math.min(range[0], value), hi = Math.max(range[1], value);
+      return `<label class="tl-slider" title="${esc(hint || '')}">
+        <span class="tl-sl-head"><span>${label}</span><output>${meters(value)}${extra || ''}</output></span>
+        <input type="range" data-num="${key}" min="${lo}" max="${hi}" step="${LightModel.STEP}" value="${value}" aria-label="${esc(label.replace(/<[^>]+>/g, ''))}">
+      </label>`;
+    };
+    // Wolfseind: hoogte waarop de kopgevels stoppen (tussen goot en nok); daarboven de schuine wolfseinden.
+    const wolfSlider = (key, f) => {
+      const at = (r) => Math.round((f.low + r * (f.high - f.low)) / LightModel.STEP) * LightModel.STEP;
+      return slider(key, 'Wolfseind', at(f.cutRatio), [at(0.05), at(0.95)], 'Hoogte waarop de kopgevels stoppen; daarboven de schuine wolfseinden tot de nok');
+    };
+    const colorItems = (obj) => Object.entries(obj).map(([key, c]) => ({ key, label: c.label, hex: c.hex }));
+    const facadeColors = (type, current) => {
+      if (type === 'rabat') return colorItems(WallModel.RABAT_COLORS);
+      if (type === 'stuc') return colorItems(WallModel.STUC_COLORS);
+      if (type === 'fels') return colorItems(WallModel.FELS.COLORS);
+      const codes = LightModel.STONES.includes(current) || !current ? LightModel.STONES : [current].concat(LightModel.STONES);
+      return codes.map(code => ({ key: code, label: `Steenstrip ${code}`, hex: WallModel.STONE_COLORS[code] || '#a08070', img: WallModel.stoneThumbUrl(code, 64) }));
+    };
+    const facadeColor = (fc) => ({ rabat: fc.rabat, stuc: fc.stuc, fels: fc.fels, steen: fc.stone })[fc.type];
+    const roofTypes = UnitModel.ROOF_TYPES;
+
+    // Plattegrondje om een unit te kiezen (noord boven).
+    function unitMap() {
+      const rs = cur.parts.rects, pad = 300;
+      const x0 = Math.min(...rs.map(r => r.x0)) - pad, x1 = Math.max(...rs.map(r => r.x1)) + pad;
+      const z0 = Math.min(...rs.map(r => r.z0)) - pad, z1 = Math.max(...rs.map(r => r.z1)) + pad;
+      const fs = Math.min(x1 - x0, z1 - z0) * 0.16;
+      return `<svg class="tl-map" viewBox="${x0} ${z0} ${x1 - x0} ${z1 - z0}" role="group" aria-label="Units, noord boven">${rs.map(r =>
+        `<g class="tl-map-u${r.id === unitSel ? ' on' : ''}" data-set="unit" data-val="${esc(r.id)}" role="button" tabindex="0" aria-label="Unit ${esc(r.id)}">
+          <rect x="${r.x0 + 40}" y="${r.z0 + 40}" width="${r.W - 80}" height="${r.D - 80}" rx="${fs * 0.2}"/>
+          <text x="${r.cx}" y="${r.cz}" font-size="${fs}" dy="0.35em" text-anchor="middle">${esc(r.id)}</text></g>`).join('')}</svg>`;
+    }
+
+    // Accordeon: één sectie open, in de kop een samenvatting van de keuze.
+    let openSec = 'maten';
+    const roofName = (t) => ({ plat: 'Plat dak', lessenaar: 'Lessenaardak', zadel: 'Zadeldak', wolf: 'Wolfsdak' })[t];
+    function renderPanel() {
+      if (!cur) return;
+      const multi = model.base.units.length > 1, houseRoof = !!ch.house;
+      const u = ch.units[unitSel], fr = model.frame.unit(unitSel);
+      const sloped = cur.parts.units.some(x => x.roof.shape.type !== 'plat');
+      const short = UnitModel.LIMITS.short;
+      // Een unit mag maar in één richting langer zijn dan de transportmaat.
+      const range = (r, other) => r && [r[0], other > short ? Math.min(r[1], short) : r[1]];
+      const wR = range(fr.width, u.depth), dR = range(fr.depth, u.width);
+
+      const sizeHtml = (multi ? `<div class="tl-mapbox">${unitMap()}<span class="tl-note">Klik op een unit</span></div>` : '') +
+        (wR ? slider('width', 'Breedte <small>west–oost</small>', u.width, wR) : '') +
+        (dR ? slider('depth', 'Diepte <small>noord–zuid</small>', u.depth, dR) : '');
+
+      // Dak: per unit (of één keer bij een dak over de hele woning) vorm, richting en hoogtes; de bedekking geldt overal.
+      const wolfOk = !houseRoof || HouseModel.houseRoofFits(cur.st);
+      const roofTypes = HouseModel.hasCover(cur.st, houseRoof ? null : unitSel)
+        ? Object.fromEntries(Object.entries(UnitModel.ROOF_TYPES).filter(([k]) => k !== 'wolf')) : UnitModel.ROOF_TYPES;
+      const K = houseRoof ? 'house' : 'unit', c = houseRoof ? ch.house : u, f = NUM[K + 'High'].form(ch);
+      const covItems = Object.entries(RoofModel.COVERINGS).map(([key, cv]) => ({ key, label: cv.label, hex: cv.color, img: RoofModel.coveringThumbUrl(key, 64) }));
+      const roofHtml = (multi && !houseRoof ? field('Unit', seg('unit', Object.fromEntries(model.base.units.map(x => [x.id, x.id])), unitSel), null, 'tl-units') : '') +
+        field('Dakvorm', seg(K + 'Type', roofTypes, c.type, (k) => k === 'wolf' && !wolfOk && 'Een wolfsdak kan alleen als de units samen een rechthoek vormen')) +
+        (c.type === 'lessenaar' ? field('Hoge kant', seg(K + 'Dir', LightModel.SIDES, f.dir)) : '') +
+        (UnitModel.hasRidge(c.type) ? field('Nok', seg(K + 'Ridge', UnitModel.RIDGES, f.ridge)) : '') +
+        slider(K + 'Low', c.type === 'plat' ? 'Hoogte' : 'Goothoogte', c.low, model.frame.height, 'Vanaf de vloer tot onderkant dak, aan de lage kant') +
+        (c.type !== 'plat' ? slider(K + 'High', c.type === 'lessenaar' ? 'Hoge kant' : 'Nokhoogte', f.high,
+          [Math.ceil((f.low + 300) / LightModel.STEP) * LightModel.STEP, UnitModel.LIMITS.ridge], 'Vanaf de vloer tot onderkant dak', ` · ${nl(f.pitch, 0)}°`) : '') +
+        (c.type === 'wolf' ? wolfSlider(K + 'Cut', f) : '') +
+        swatchField('Bedekking', swatches('covering', covItems, ch.covering, (k) => !sloped && RoofModel.COVERINGS[k].sloped && 'alleen op een hellend dak; een plat dak krijgt dakleer')) +
+        field('Dakrand', seg('fascia', { aan: 'Boeidelen', uit: 'Daktrim' }, ch.fascia.on ? 'aan' : 'uit')) +
+        (ch.fascia.on ? swatchField('Kleur boeidelen', swatches('fasciaColor',
+          Object.entries(RoofModel.FASCIA_COLORS).map(([key, c]) => ({ key, label: c.label, hex: '#' + c.hex.toString(16).padStart(6, '0') })), ch.fascia.color)) : '');
+
+      const fc = ch.facade;
+      const facadeHtml = field('Bekleding', seg('facadeType', LightModel.FACADES, fc.type)) +
+        (fc.type === 'rabat' ? field('Richting', seg('cladding', WallModel.CLADDING_DIRECTIONS, fc.cladding)) : '') +
+        swatchField('Kleur', swatches('facadeColor', facadeColors(fc.type, fc.stone), facadeColor(fc))) +
+        (model.hasAccent ? field('Accent <small>afwijkende gevel van het model</small>', seg('accentType', Object.assign({ geen: 'Geen' }, LightModel.FACADES), ch.accent ? ch.accent.type : 'geen')) +
+          (ch.accent ? swatchField('Kleur accent', swatches('accentColor', facadeColors(ch.accent.type, ch.accent.color), ch.accent.type === 'rabat' ? fc.rabat : ch.accent.color)) : '') : '');
+
+      // Trasraam: strook onderaan de gevel (onder rabat én steen).
+      const tr = ch.trasraam;
+      const trasraamHtml = field('Trasraam <small>stenen strook onderaan de gevel</small>', seg('trasraamType', { geen: 'Geen', steen: 'Steen' }, tr.on ? 'steen' : 'geen')) +
+        (tr.on ? swatchField('Steen trasraam', swatches('trasraamStone', facadeColors('steen', tr.finish), tr.finish)) : '') +
+        (tr.on ? slider('trasraamHigh', 'Hoogte trasraam', tr.height, [200, 1000], 'Vanaf bovenkant vloer') : '') +
+        (LightModel.trimUses(ch) ? swatchField(`Zetwerk <small>${LightModel.trimUses(ch)}</small>`,
+          swatches('trim', Object.entries(WallModel.TRIM_COLORS).map(([key, c]) => ({ key, label: c.label, hex: c.hex })), ch.trim)) : '');
+
+      const L = ch.lighting;
+      const lightHtml = field('Binnen', seg('indoor', { aan: 'Inbouwspots', uit: 'Geen' }, L.indoor ? 'aan' : 'uit')) +
+        field('Buiten', seg('lightMode', LightModel.LIGHTING, L.mode)) +
+        (L.mode === 'gevel' ? field('Lichtrichting', seg('lightDir', LightingModel.DIRECTIONS, L.direction)) : '');
+
+      const i = cur.info;
+      const types = houseRoof ? [ch.house.type] : [...new Set(Object.values(ch.units).map(x => x.type))];
+      const covLabel = sloped ? RoofModel.COVERINGS[ch.covering].label : 'Dakleer';
+      const facadeSum = `${LightModel.FACADES[fc.type]} · ${LightModel.colorName(fc.type, facadeColor(fc))}${tr.on ? ' · trasraam' : ''}`;
+      const lightSum = [L.indoor ? 'Spots binnen' : null, L.mode === 'geen' ? 'geen buitenlampen' : LightModel.LIGHTING[L.mode].toLowerCase()].filter(Boolean).join(' · ');
+      const sec = (key, title, icon, sum, html) => {
+        const open = openSec === key;
+        return `<section class="tl-sec${open ? ' open' : ''}">
+          <button type="button" class="tl-sec-head" data-sec="${key}" aria-expanded="${open}"><i class="bi bi-${icon}"></i><span class="tl-sec-title">${title}</span>
+            <span class="tl-sec-sum">${esc(sum)}</span><i class="bi bi-chevron-down tl-chev"></i></button>
+          ${open ? `<div class="tl-sec-body">${html}</div>` : ''}</section>`;
+      };
+      const el = $('.tl-sections'), scroll = el.scrollTop;
+      el.innerHTML = sec('maten', 'Afmetingen', 'rulers', `${meters(i.lengthX)} × ${meters(i.lengthZ)}`, sizeHtml) +
+        sec('dak', 'Dak', 'house', `${types.length > 1 ? 'Gemengd' : roofName(types[0])} · ${covLabel}`, roofHtml) +
+        sec('gevel', 'Gevel', 'bricks', facadeSum, facadeHtml + trasraamHtml) +
+        sec('licht', 'Verlichting', 'lightbulb', lightSum, lightHtml);
+      el.scrollTop = scroll;
+    }
+
+    function renderSummary() {
+      const i = cur.info;
+      $('.tl-sub').textContent = `${meters(i.lengthX)} × ${meters(i.lengthZ)} · ${nl(i.brutoM2, 1)} m² · ${meters(i.height)} hoog`;
+      const kv = (k, v) => `<div class="tl-kv"><span>${k}</span><b>${v}</b></div>`;
+      $('.tl-facts').innerHTML = kv('Vloer bruto', `${nl(i.brutoM2, 1)} m²`) + kv('Leefbaar', `${nl(i.leefbaarM2, 1)} m²`) +
+        kv('Inhoud', `${nl(i.inhoudM3, 0)} m³`) + kv('Gewicht', `${nl(Math.round(i.kg / 10) * 10, 0)} kg`);
+      $('.tl-buy').innerHTML = `<div class="tl-price"><span class="tl-price-val">${CostModel.eur(Math.round(i.price / 100) * 100)}</span><span class="tl-price-note">indicatief, incl. btw</span></div>
+        <button type="button" class="tl-btn tl-icon" data-act="reset" title="Alle keuzes terug naar het model" aria-label="Terug naar het model"><i class="bi bi-arrow-counterclockwise"></i></button>
+        <button type="button" class="tl-btn tl-primary" data-act="pdf"><i class="bi bi-file-earmark-pdf"></i>PDF</button>`;
+    }
+
+    // Keuzes (knoppen en kleuren).
+    const panel = $('.tl-panel');
+    function choose(key, val) {
+      if (key === 'unit') { unitSel = val; renderPanel(); return; }
+      const R = (k) => k.startsWith('house') ? next.house : next.units[unitSel];
+      const next = clone(ch), fc = next.facade;
+      // Andere dakvorm: de nok volgt weer uit de helling (of uit het model, bij zijn eigen dakvorm).
+      if (key === 'unitType' || key === 'houseType') Object.assign(R(key), { type: val, high: null });
+      else if (key === 'unitDir' || key === 'houseDir') R(key).dir = val;
+      else if (key === 'unitRidge' || key === 'houseRidge') R(key).ridge = val;
+      else if (key === 'indoor') next.lighting.indoor = val === 'aan';
+      else if (key === 'covering') next.covering = val;
+      else if (key === 'facadeType') fc.type = val;
+      else if (key === 'cladding') fc.cladding = val;
+      else if (key === 'facadeColor') fc[{ rabat: 'rabat', stuc: 'stuc', fels: 'fels', steen: 'stone' }[fc.type]] = val;
+      else if (key === 'accentType') next.accent = val === 'geen' ? null : { type: val, color: val === 'rabat' ? null : facadeColor(Object.assign({}, fc, { type: val })) };
+      else if (key === 'accentColor') { if (next.accent.type === 'rabat') fc.rabat = val; else next.accent.color = val; }
+      else if (key === 'trasraamType') {
+        const t = next.trasraam;
+        t.on = val === 'steen';
+        if (t.on && !t.finish) t.finish = fc.type === 'steen' ? fc.stone : LightModel.STONES[0];
+      } else if (key === 'trasraamStone') next.trasraam.finish = val;
+      else if (key === 'trim') next.trim = val;
+      else if (key === 'fascia') next.fascia.on = val === 'aan';
+      else if (key === 'fasciaColor') next.fascia.color = val;
+      else if (key === 'lightMode') next.lighting.mode = val;
+      else if (key === 'lightDir') next.lighting.direction = val;
+      else return;
+      tryApply(next);
+    }
+    panel.addEventListener('click', (e) => {
+      const h = e.target.closest('[data-sec]');
+      if (h) { openSec = openSec === h.dataset.sec ? null : h.dataset.sec; renderPanel(); return; }
+      const b = e.target.closest('[data-set]');
+      if (b && !b.disabled) { choose(b.dataset.set, b.dataset.val); return; }
+      const a = e.target.closest('[data-act]');
+      if (!a || !cur) return;
+      if (a.dataset.act === 'pdf') savePdf();
+      else if (a.dataset.act === 'reset') tryApply(clone(model.initial));
+    });
+    panel.addEventListener('keydown', (e) => {
+      const g = e.target.closest('g[data-set]');
+      if (g && (e.key === 'Enter' || e.key === ' ')) { e.preventDefault(); choose(g.dataset.set, g.dataset.val); }
+    });
+    // Maten: label volgt het schuiven, doorrekenen bij loslaten.
+    const NUM = {
+      width: { get: (c) => c.units[unitSel].width, set: (c, v) => { c.units[unitSel].width = v; } },
+      depth: { get: (c) => c.units[unitSel].depth, set: (c, v) => { c.units[unitSel].depth = v; } },
+      // De goot omhoog of omlaag neemt een gekozen nok mee (zelfde dak, hoger of lager).
+      unitLow: { get: (c) => c.units[unitSel].low, set: (c, v) => lift(c.units[unitSel], v) },
+      houseLow: { get: (c) => c.house.low, set: (c, v) => lift(c.house, v) },
+      trasraamHigh: { get: (c) => c.trasraam.height, set: (c, v) => { c.trasraam.height = v; } }
+    };
+    function lift(x, v) { if (x.high > 0) x.high += v - x.low; x.low = v; }
+    // Wolfseind: de keuze is een verhouding (goot 0, nok 1), de schuif een hoogte.
+    const unitForm = (c) => LightModel.formOf(model, c, unitSel), houseForm = (c) => LightModel.formOf(model, c, null, cur.st);
+    NUM.unitHigh = { form: unitForm, get: (c) => unitForm(c).high, set: (c, v) => { c.units[unitSel].high = v; } };
+    NUM.houseHigh = { form: houseForm, get: (c) => houseForm(c).high, set: (c, v) => { c.house.high = v; } };
+    [['unitCut', (c) => c.units[unitSel], unitForm], ['houseCut', (c) => c.house, houseForm]].forEach(([k, of, form]) => {
+      NUM[k] = {
+        form,
+        get: (c) => { const f = form(c); return Math.round((f.low + f.cutRatio * (f.high - f.low)) / LightModel.STEP) * LightModel.STEP; },
+        set: (c, v) => { const f = form(c); of(c).cut = Math.max(0.05, Math.min(0.95, (v - f.low) / Math.max(1, f.high - f.low))); }
+      };
+    });
+    panel.addEventListener('input', (e) => {
+      const r = e.target.closest('[data-num]');
+      if (r) r.closest('.tl-slider').querySelector('output').textContent = meters(Number(r.value));
+    });
+    panel.addEventListener('change', (e) => {
+      const r = e.target.closest('[data-num]');
+      if (!r) return;
+      const n = NUM[r.dataset.num], v = Number(r.value), old = n.get(ch);
+      if (v === old) return;
+      const next = clone(ch);
+      n.set(next, v);
+      tryApply(next, { set: n.set, ok: old, want: v });
+    });
+
+    // Beeld voor het voorblad: de 3D-weergave (ook vanuit doorsnede of plattegrond) op vaste resolutie.
+    function snapshot() {
+      const W = 1600, H = 1500, other = view !== '3d', pr = renderer.getPixelRatio();
+      const keep = { pos: camera.position.clone(), target: controls.target.clone() };
+      const url = as3d(() => {
+        if (other && poses['3d']) { camera.position.copy(poses['3d'].pos); controls.target.copy(poses['3d'].target); }
+        renderer.setPixelRatio(1);
+        renderer.setSize(W, H, false);
+        camera.aspect = W / H;
+        camera.updateProjectionMatrix();
+        controls.update();
+        renderer.render(scene, camera);
+        return renderer.domElement.toDataURL('image/jpeg', 0.88);
+      });
+      renderer.setPixelRatio(pr);
+      if (other) {
+        camera.position.copy(keep.pos);
+        controls.target.copy(keep.target);
+        controls.update();
+      }
+      resize();
+      return { url, width: W, height: H };
+    }
+    const pageUrl = o.url || root.dataset.url || LightPdf.modelUrl(model.key);
+
+    function savePdf() {
+      const st = clone(cur.st);
+      st.project.naam = model.label;
+      st.project.opmerking = 'Indicatief ontwerp';
+      try {
+        let image = null;
+        try { image = snapshot(); } catch (err) { console.warn(err); }
+        LightPdf.generate({ st, label: model.label, info: cur.info, choices: LightModel.describe(model, ch, cur.st), url: pageUrl, image })
+          .save(`${model.label.replace(/[^A-Za-z0-9_-]+/g, '-')}-${new Date().toISOString().slice(0, 10)}.pdf`);
+      } catch (err) {
+        console.error(err);
+        toast('De PDF kon niet worden gemaakt.');
+      }
+    }
+
+    // Prijzen komen uit de CSV's (async geladen): bijwerken zodra ze er zijn.
+    const offCosts = CostModel.onChange(() => { if (cur && cur.parts) { cur.info = LightModel.summary(cur.st, cur.parts); renderSummary(); } });
+
+    let visible = true, raf = 0;
+    function resize() {
+      const w = stage.clientWidth, h = stage.clientHeight;
+      if (!w || !h) return;
+      camera.aspect = w / h;
+      camera.updateProjectionMatrix();
+      renderer.setSize(w, h);
+    }
+    const ro = new ResizeObserver(() => { resize(); if (view === 'plan') drawPlan(); });
+    ro.observe(stage);
+    // Alleen tekenen als de configurator in beeld is (modelpagina scrolt).
+    const io = new IntersectionObserver((es) => { visible = es.some(x => x.isIntersecting); });
+    // In een pagina: het scrollwiel scrolt de pagina, tenzij je in de 3D hebt geklikt (tot je de muis eruit haalt) of
+    // Ctrl/⌘ ingedrukt houdt (of schermvullend); dan zoomt het.
+    let engaged = false;
+    const stageEl = $('.tl-stage');
+    stageEl.addEventListener('pointerdown', () => { engaged = true; });
+    stageEl.addEventListener('pointerleave', () => { engaged = false; });
+    stageEl.addEventListener('wheel', (e) => {
+      if (engaged || e.ctrlKey || e.metaKey || view === 'plan' || fsEl() === stageEl) return;
+      e.stopPropagation();
+      toast('Klik eerst in de weergave (of houd Ctrl ingedrukt) om te zoomen.');
+    }, { capture: true });
+    io.observe(stage);
+
+    // GLB van het ontwerp (afgewerkte woning zoals in 3D, maaiveld onder het midden = oorsprong); één keer per ontwerp.
+    let glb = null;
+    function makeGlb() {
+      if (glb && glb.parts === cur.parts) return glb;
+      if (glb) URL.revokeObjectURL(glb.url);
+      const out = as3d(() => GlbWriter.build(rootsOf(cur.parts), { name: model.label, origin: HouseModel.groundOrigin(cur.st, cur.parts) }));
+      glb = { parts: cur.parts, blob: out.blob, url: URL.createObjectURL(out.blob), stats: out.stats };
+      return glb;
+    }
+
+    // Knop rechtsboven: AR op een telefoon/tablet, schermvullend op de desktop.
+    const xbtn = $('.tl-xbtn');
+    const fsEl = () => document.fullscreenElement || document.webkitFullscreenElement;
+    const canFull = !!(stageEl.requestFullscreen || stageEl.webkitRequestFullscreen);
+    function setXbtn() {
+      const full = fsEl() === stageEl;
+      xbtn.innerHTML = `<i class="bi bi-${AR_DEVICE ? 'badge-ar' : full ? 'fullscreen-exit' : 'fullscreen'}"></i>`;
+      xbtn.title = AR_DEVICE ? 'Bekijk het ontwerp in je eigen tuin (AR)' : full ? 'Schermvullend uit (Esc)' : 'Schermvullend';
+      xbtn.setAttribute('aria-label', xbtn.title);
+    }
+    if (AR_DEVICE || canFull) { xbtn.hidden = false; root.classList.add('has-xbtn'); setXbtn(); }
+    function toggleFull() {
+      const r = fsEl() === stageEl ? (document.exitFullscreen || document.webkitExitFullscreen).call(document)
+        : (stageEl.requestFullscreen || stageEl.webkitRequestFullscreen).call(stageEl);
+      if (r && r.catch) r.catch(() => toast('Schermvullend lukt hier niet.'));
+    }
+    const onFull = () => { root.classList.toggle('is-full', fsEl() === stageEl); setXbtn(); };
+    document.addEventListener('fullscreenchange', onFull);
+    document.addEventListener('webkitfullscreenchange', onFull);
+
+    // AR: model-viewer in een eigen laag over de hele pagina (buiten de tool: die is een container en dus het
+    // kader van position: fixed). De AR-knop van model-viewer verschijnt alleen als het toestel AR kan.
+    const mvSrc = o.modelViewer || root.dataset.modelViewer || new URL('../vendor/model-viewer-umd.min.js', SCRIPT_SRC).href;
+    let arView = null, arOpen = false;
+    const AR_NOTE = 'Ware grootte · met twee vingers verkleinen of draaien';
+    function closeAr() {
+      if (!arOpen) return;
+      arOpen = false;
+      arView.classList.remove('on');
+      document.documentElement.classList.remove('tl-noscroll');
+    }
+    const arKey = (e) => { if (arOpen && e.key === 'Escape') closeAr(); };
+    document.addEventListener('keydown', arKey);
+    function showAr(url) {
+      if (!arView) {
+        arView = document.createElement('div');
+        arView.className = 'tl-arview';
+        arView.setAttribute('role', 'dialog');
+        arView.setAttribute('aria-modal', 'true');
+        arView.innerHTML = `<model-viewer camera-controls touch-action="none" interaction-prompt="none" shadow-intensity="1" environment-image="neutral"
+            ar ar-modes="webxr scene-viewer quick-look" ar-scale="auto" ar-placement="floor">
+            <button type="button" slot="ar-button" class="tl-ar-go"><i class="bi bi-badge-ar"></i>Bekijk in je tuin</button>
+          </model-viewer>
+          <div class="tl-ar-top"><b class="tl-ar-title"></b><button type="button" class="tl-ar-close" aria-label="Sluiten"><i class="bi bi-x-lg"></i></button></div>
+          <div class="tl-ar-note"></div>`;
+        document.body.appendChild(arView);
+        const mv = arView.querySelector('model-viewer'), note = arView.querySelector('.tl-ar-note');
+        arView.querySelector('.tl-ar-close').addEventListener('click', closeAr);
+        mv.addEventListener('load', () => {
+          note.textContent = mv.canActivateAR ? AR_NOTE : 'AR werkt niet op dit toestel of in deze browser; draaien en zoomen kan wel.';
+        });
+        mv.addEventListener('ar-status', (e) => { if (e.detail.status === 'failed') note.textContent = 'AR kon niet starten op dit toestel.'; });
+      }
+      const mv = arView.querySelector('model-viewer');
+      arView.setAttribute('aria-label', `${model.label} in 3D en AR`);
+      arView.querySelector('.tl-ar-title').textContent = model.label;
+      mv.alt = `3D-model van ${model.label}`;
+      if (mv.getAttribute('src') !== url) { arView.querySelector('.tl-ar-note').textContent = ''; mv.setAttribute('src', url); }
+      arView.classList.add('on');
+      document.documentElement.classList.add('tl-noscroll');
+      arOpen = true;
+    }
+    async function openAr() {
+      if (!cur || busy) return;
+      busy = true;
+      root.classList.add('is-busy');
+      try {
+        await new Promise(r => setTimeout(r, 30)); // eerst de spinner tekenen
+        const g = makeGlb();
+        await loadModelViewer(mvSrc);
+        showAr(g.url);
+      } catch (err) {
+        console.error(err);
+        toast('De AR-weergave kon niet worden geopend.');
+      }
+      busy = false;
+      root.classList.remove('is-busy');
+    }
+    xbtn.addEventListener('click', () => { if (AR_DEVICE) openAr(); else toggleFull(); });
+
+    (function loop() {
+      raf = requestAnimationFrame(loop);
+      if (visible && !arOpen && view !== 'plan') renderer.render(scene, camera);
+    })();
+
+    root.classList.add('is-busy');
+    setTimeout(() => {
+      const st = LightModel.build(model, ch);
+      show(st, compute(st));
+      root.classList.remove('is-busy');
+    }, 30);
+
+    return {
+      unmount() {
+        cancelAnimationFrame(raf);
+        ro.disconnect(); io.disconnect(); offCosts(); controls.dispose();
+        document.removeEventListener('keydown', arKey);
+        document.removeEventListener('fullscreenchange', onFull);
+        document.removeEventListener('webkitfullscreenchange', onFull);
+        closeAr();
+        if (arView) arView.remove();
+        if (glb) URL.revokeObjectURL(glb.url);
+        if (group) disposeGeo(group);
+        renderer.dispose();
+        root.innerHTML = '';
+      },
+      getChoices: () => clone(ch),
+      // GLB van het huidige ontwerp: { blob, url, stats } (zelfde als voor AR).
+      glb: () => cur && makeGlb()
+    };
+  }
+
+  function autoMount() {
+    document.querySelectorAll('.tectum-light[data-model]').forEach(el => {
+      if (el.dataset.mounted) return;
+      el.dataset.mounted = '1';
+      try { el.tectumLight = mount(el); } catch (err) { console.error(err); el.textContent = `Configurator niet beschikbaar: ${err.message}`; }
+    });
+  }
+  if (document.readyState === 'loading') document.addEventListener('DOMContentLoaded', autoMount);
+  else autoMount();
+
+  return { mount, autoMount };
+})();

js/lighting/lighting-model.js

@@ -324,32 +324,41 @@ window.LightingModel = (() => {
   const OUTDOOR = { lamp: 1.1, spot: 0.9, angle: 0.62, penumbra: 0.85 };
   const INDOOR = { intensity: 1.4, angle: 1.3, penumbra: 0.9, reach: 1.12, decay: 1.0 };
   const DAY_OUTDOOR_FACTOR = 0.35;
-  function buildLights3D(lamps, spots, spotY, indoor, o) {
-    const toM = 0.001;
-    const fo = (o && o.outdoorFactor !== undefined) ? o.outdoorFactor : 1;
-    const group = new THREE.Group();
-    const add = (x, y, z, tx, ty, tz, intensity, angle, distance, decay, penumbra, ref) => {
-      const light = new THREE.SpotLight(0xffd9a0, intensity, distance, angle, penumbra, decay);
-      light.userData.ref = ref;
-      light.position.set(x, y, z);
-      light.target.position.set(x + tx, y + ty, z + tz);
-      group.add(light);
-      group.add(light.target);
+  // Lichtbronnen in meters: positie, richting (genormaliseerd), halve kegelhoek; gedeeld door 3D en render-export.
+  function lightSources(lamps, spots, spotY, indoor) {
+    const toM = 0.001, out = [];
+    const add = (kind, x, y, z, tx, ty, tz, intensity, angle, distance, decay, penumbra, ref) => {
+      const len = Math.hypot(tx, ty, tz) || 1;
+      out.push({ kind, x, y, z, dir: { x: tx / len, y: ty / len, z: tz / len }, intensity, angle, distance, decay, penumbra, ref });
     };
     const tilt = Math.tan(OUTDOOR.angle);
     lamps.forEach(l => {
       const x = l.x * toM + l.normal.x * 0.12, z = l.z * toM + l.normal.z * 0.12, y = l.y * toM;
       const nx = l.normal.x * tilt, nz = l.normal.z * tilt;
-      if (l.direction !== 'up') add(x, y - 0.09, z, nx, -1, nz, OUTDOOR.lamp * fo, OUTDOOR.angle, 4.5, 1.5, OUTDOOR.penumbra, l);
-      if (l.direction !== 'down') add(x, y + 0.09, z, nx, 1, nz, OUTDOOR.lamp * fo, OUTDOOR.angle, 4.5, 1.5, OUTDOOR.penumbra, l);
+      if (l.direction !== 'up') add('wandlamp', x, y - 0.09, z, nx, -1, nz, OUTDOOR.lamp, OUTDOOR.angle, 4.5, 1.5, OUTDOOR.penumbra, l);
+      if (l.direction !== 'down') add('wandlamp', x, y + 0.09, z, nx, 1, nz, OUTDOOR.lamp, OUTDOOR.angle, 4.5, 1.5, OUTDOOR.penumbra, l);
     });
     (spots || []).forEach(p => {
       const n = p.normal || { x: 0, z: 0 }, len = Math.hypot(n.x, n.z) || 1;
-      add(p.x * toM, (p.y !== undefined ? p.y : spotY) * toM - 0.02, p.z * toM, n.x / len * tilt, -1, n.z / len * tilt, OUTDOOR.spot * fo, OUTDOOR.angle, 5.5, 1.5, OUTDOOR.penumbra, p);
+      add('dakrandspot', p.x * toM, (p.y !== undefined ? p.y : spotY) * toM - 0.02, p.z * toM, n.x / len * tilt, -1, n.z / len * tilt, OUTDOOR.spot, OUTDOOR.angle, 5.5, 1.5, OUTDOOR.penumbra, p);
     });
     (indoor || []).forEach(p => {
       const drop = (p.y - p.floorY) * toM;
-      add(p.x * toM, p.y * toM - 0.02, p.z * toM, 0, -1, 0, INDOOR.intensity, INDOOR.angle, drop * INDOOR.reach, INDOOR.decay, INDOOR.penumbra, p);
+      add('binnenspot', p.x * toM, p.y * toM - 0.02, p.z * toM, 0, -1, 0, INDOOR.intensity, INDOOR.angle, drop * INDOOR.reach, INDOOR.decay, INDOOR.penumbra, p);
+    });
+    return out;
+  }
+
+  function buildLights3D(lamps, spots, spotY, indoor, o) {
+    const fo = (o && o.outdoorFactor !== undefined) ? o.outdoorFactor : 1;
+    const group = new THREE.Group();
+    lightSources(lamps, spots, spotY, indoor).forEach(s => {
+      const light = new THREE.SpotLight(0xffd9a0, s.kind === 'binnenspot' ? s.intensity : s.intensity * fo, s.distance, s.angle, s.penumbra, s.decay);
+      light.userData.ref = s.ref;
+      light.position.set(s.x, s.y, s.z);
+      light.target.position.set(s.x + s.dir.x, s.y + s.dir.y, s.z + s.dir.z);
+      group.add(light);
+      group.add(light.target);
     });
     if (o && o.walls) group.add(buildWash3D(lamps, spots, spotY, o.walls, o.groundY || 0, fo));
     return group;
@@ -450,5 +459,5 @@ window.LightingModel = (() => {
     return group;
   }
 
-  return { DEFAULT_SETTINGS, MODES, DIRECTIONS, WALL_OVERRIDES, createDefaultUnitLighting, DAY_OUTDOOR_FACTOR, normalizeSettings, compute, computeIndoor, roomSpots, applySwitches, unitInnerRect, freeIntervals, createMaterials, build3D, buildLights3D };
+  return { DEFAULT_SETTINGS, MODES, DIRECTIONS, WALL_OVERRIDES, createDefaultUnitLighting, DAY_OUTDOOR_FACTOR, normalizeSettings, compute, computeIndoor, roomSpots, applySwitches, unitInnerRect, freeIntervals, createMaterials, build3D, lightSources, buildLights3D };
 })();

js/roof/post-model.js

@@ -7,6 +7,9 @@
 // Palen onder een overkapping: steekt een dak minstens minExt buiten de vloeren uit (veranda), dan komen er
 // palen onder de dakrand. Hoekpalen staan met hun buitenkant gelijk met de dakhoek; een eind dat op een gevel
 // uitkomt rust op die wand. Daartussen zo weinig palen dat de h.o.h.-afstand onder maxSpan blijft.
+// sideWall: een vrije hoek krijgt geen paal maar een dichte zijwand (gestuukt) van de dakhoek terug tot de gevel,
+// met de buitenkant gelijk met de zijkant van het dak. Ligt die buitenkant in het vlak van een gevel, dan loopt de
+// bekleding van die gevel erover door (outsideOf, bijv. felsplaten) en staat de wand gelijk met de bekleding.
 
 window.PostModel = (() => {
   const EPS = 0.5;
@@ -15,12 +18,16 @@ window.PostModel = (() => {
     eiken: { label: 'Eiken', hex: 0xa07c54, kgM3: 750 },
     douglas: { label: 'Douglas', hex: 0xb98a5e, kgM3: 530 }
   };
-  const DEFAULT_SETTINGS = { enabled: true, size: 200, wood: 'eiken', maxSpan: 3600, minExt: 1000 };
+  const DEFAULT_SETTINGS = { enabled: true, size: 200, wood: 'eiken', maxSpan: 3600, minExt: 1000, sideWall: false, sideColor: 'wit' };
+  const SIDE_MM = 200;              // dikte zijwand (regelwerk, plaat en stuc aan beide kanten)
+  const SIDE_TOP_BELOW_MM = 40;     // doorlopende gevelbekleding: tot zo ver onder de bovenkant van het dak
 
   function normalizeSettings(settings) {
     const s = Object.assign({}, DEFAULT_SETTINGS, settings || {});
     s.enabled = s.enabled !== false;
+    s.sideWall = !!s.sideWall;
     if (!WOODS[s.wood]) s.wood = DEFAULT_SETTINGS.wood;
+    if (!WallModel.isStucColor(s.sideColor)) s.sideColor = DEFAULT_SETTINGS.sideColor;
     const num = (v, def, min, max) => (isFinite(v) ? Math.min(max, Math.max(min, Math.round(v))) : def);
     s.size = num(s.size, DEFAULT_SETTINGS.size, 100, 400);
     s.maxSpan = num(s.maxSpan, DEFAULT_SETTINGS.maxSpan, 1000, 8000);
@@ -29,9 +36,10 @@ window.PostModel = (() => {
   }
 
   // units: [{ rect (vloer), roof: { rect, ceilingAt } }] in wereld-mm; groundY = maaiveld (absoluut).
-  function compute(settings, units, groundY) {
+  // outsideOf(wall, out): { finish, kind, depth } van de gevel in het vlak van de buitenkant, of null.
+  function compute(settings, units, groundY, outsideOf) {
     const s = normalizeSettings(settings);
-    const out = { posts: [], count: 0, size: s.size, wood: s.wood, lengthMM: 0, m3: 0, kg: 0 };
+    const out = { posts: [], count: 0, size: s.size, wood: s.wood, lengthMM: 0, m3: 0, kg: 0, walls: [], wallM2: 0, sideColor: s.sideColor };
     if (!s.enabled || !units.length) return out;
     const floors = units.map(u => u.rect);
     const onFloor = (x, z, m) => floors.some(f => x > f.x0 - m && x < f.x1 + m && z > f.z0 - m && z < f.z1 + m);
@@ -79,11 +87,56 @@ window.PostModel = (() => {
 
     const half = s.size / 2;
     const pts = [];
+    const roofAt = (x, z) => units.map(u => u.roof).find(rf => x > rf.rect.x0 - EPS && x < rf.rect.x1 + EPS && z > rf.rect.z0 - EPS && z < rf.rect.z1 + EPS);
+    const endFreeOf = (r, t) => { const p = r.axis === 'z' ? { x: r.at, z: t } : { x: t, z: r.at }; return !onFloor(p.x, p.z, s.size); };
+    // Zijwand op het vrije eind t van run r (dir +1: wand van t de run in, -1: andersom), terug tot de gevel waar de
+    // run naar kijkt. Delen twee runs een vrije hoek (veranda in een binnenhoek), dan is de run met de kortste weg
+    // naar de gevel de voorkant en komt de wand langs de zijkant; het andere eind rust op die wand.
+    const sideCands = [];
+    if (s.sideWall) merged.forEach(r => [[r.a, 1], [r.b, -1]].forEach(([t, dir]) => {
+      if (!endFreeOf(r, t)) return;
+      const lo = Math.min(t, t + dir * SIDE_MM), hi = Math.max(t, t + dir * SIDE_MM);
+      let reach = Infinity;
+      floors.forEach(f => {
+        const [s0, s1, c0, c1] = r.axis === 'z' ? [f.z0, f.z1, f.x0, f.x1] : [f.x0, f.x1, f.z0, f.z1];
+        if (s0 > hi - EPS || s1 < lo + EPS) return;
+        const d = r.n > 0 ? r.at - c1 : c0 - r.at;
+        if (d > -EPS && d < reach) reach = d;
+      });
+      if (!isFinite(reach) || reach < s.size) return;
+      const a = Math.min(r.at, r.at - r.n * reach), b = Math.max(r.at, r.at - r.n * reach);
+      const corner = r.axis === 'z' ? { x: r.at, z: t } : { x: t, z: r.at };
+      const outward = r.axis === 'z' ? { x: 0, z: -dir } : { x: -dir, z: 0 };
+      sideCands.push({ r, t, corner, reach, out: outward, w: r.axis === 'z' ? { x0: a, x1: b, z0: lo, z1: hi } : { x0: lo, x1: hi, z0: a, z1: b } });
+    }));
+    const sameCorner = (p, q) => Math.abs(p.x - q.x) < EPS && Math.abs(p.z - q.z) < EPS;
+    const sideAt = (r, t) => { const c = sideCands.find(d => d.r === r && d.t === t); return !!c && sideCands.some(d => d.built && sameCorner(d.corner, c.corner)); };
+    sideCands.forEach(c => {
+      if (sideCands.some(d => d !== c && sameCorner(d.corner, c.corner) && (d.reach < c.reach - EPS || (Math.abs(d.reach - c.reach) < EPS && sideCands.indexOf(d) < sideCands.indexOf(c))))) return;
+      const w = c.w;
+      const tops = [[w.x0 + 1, w.z0 + 1], [w.x1 - 1, w.z0 + 1], [w.x0 + 1, w.z1 - 1], [w.x1 - 1, w.z1 - 1]]
+        .map(([x, z]) => { const rf = roofAt(x, z); return rf ? rf.ceilingAt(x, z) : null; }).filter(v => v !== null);
+      if (!tops.length || !(Math.max(...tops) > groundY)) return;
+      const wall = Object.assign({}, w, { y0: groundY, y1: Math.round(Math.max(...tops)), color: s.sideColor, out: c.out, outside: null });
+      const o = outsideOf ? outsideOf(wall, c.out) : null;
+      if (o) {
+        if (c.out.x > 0) wall.x1 += o.depth; else if (c.out.x < 0) wall.x0 -= o.depth;
+        if (c.out.z > 0) wall.z1 += o.depth; else if (c.out.z < 0) wall.z0 -= o.depth;
+        Object.assign(wall, { outside: o.finish, outsideKind: o.kind });
+        // Zoals de gevel: de bekleding loopt tot onder de dakrand door (over de kant van het dakpakket).
+        const roofTops = [[w.x0 + 1, w.z0 + 1], [w.x1 - 1, w.z0 + 1], [w.x0 + 1, w.z1 - 1], [w.x1 - 1, w.z1 - 1]]
+          .map(([x, z]) => { const rf = roofAt(x, z); return rf && rf.topAt ? rf.topAt(x, z) : null; }).filter(v => v !== null);
+        if (roofTops.length) wall.y1 = Math.max(wall.y1, Math.round(Math.min(...roofTops) - SIDE_TOP_BELOW_MM));
+      }
+      out.walls.push(wall);
+      c.built = true;
+    });
     merged.forEach(r => {
       const pos = (t) => (r.axis === 'z' ? { x: r.at - r.n * half, z: t } : { x: t, z: r.at - r.n * half });
       // Een eind dat op of tegen een vloer uitkomt rust op die gevel.
       const endFree = (t) => { const p = r.axis === 'z' ? { x: r.at, z: t } : { x: t, z: r.at }; return !onFloor(p.x, p.z, s.size); };
-      const fa = endFree(r.a), fb = endFree(r.b);
+      // Een dichte zijwand neemt de plaats van de hoekpaal in; het eind rust dan op die wand.
+      const fa = endFree(r.a) && !sideAt(r, r.a), fb = endFree(r.b) && !sideAt(r, r.b);
       const pa = fa ? r.a + half : r.a, pb = fb ? r.b - half : r.b;
       if (pb - pa < EPS) return;
       const n = Math.max(1, Math.ceil((pb - pa) / s.maxSpan - 1e-9));
@@ -94,7 +147,8 @@ window.PostModel = (() => {
     });
     pts.forEach(p => {
       if (out.posts.some(q => Math.abs(q.x - p.x) < s.size && Math.abs(q.z - p.z) < s.size)) return;
-      const roof = units.map(u => u.roof).find(rf => p.x > rf.rect.x0 - EPS && p.x < rf.rect.x1 + EPS && p.z > rf.rect.z0 - EPS && p.z < rf.rect.z1 + EPS);
+      if (out.walls.some(w => p.x > w.x0 - half && p.x < w.x1 + half && p.z > w.z0 - half && p.z < w.z1 + half)) return;
+      const roof = roofAt(p.x, p.z);
       if (!roof) return;
       // Hoogste hoek: bij een hellend dak verdwijnt de paal aan de lage kant in het dakpakket, zonder kier.
       const top = Math.max(...[[-1, -1], [1, -1], [-1, 1], [1, 1]].map(([a, b]) => roof.ceilingAt(p.x + a * (half - 1), p.z + b * (half - 1))));
@@ -105,6 +159,10 @@ window.PostModel = (() => {
     out.lengthMM = out.posts.reduce((t, p) => t + p.y1 - p.y0 - SHOE_MM, 0);
     out.m3 = out.lengthMM * s.size * s.size / 1e9;
     out.kg = out.m3 * WOODS[s.wood].kgM3;
+    const wallArea = (w) => Math.max(w.x1 - w.x0, w.z1 - w.z0) * (w.y1 - w.y0) / 1e6;
+    out.wallM2 = out.walls.reduce((t, w) => t + wallArea(w), 0);
+    out.outsideM2 = {};
+    out.walls.filter(w => w.outsideKind).forEach(w => { out.outsideM2[w.outsideKind] = (out.outsideM2[w.outsideKind] || 0) + wallArea(w); });
     return out;
   }
 
@@ -117,7 +175,7 @@ window.PostModel = (() => {
 
   function build3D(data, materials) {
     const toM = 0.001, group = new THREE.Group();
-    if (!data || !data.posts.length) return group;
+    if (!data || !(data.posts.length || (data.walls || []).length)) return group;
     const m = materials || createMaterials();
     const woodMat = m.wood[data.wood] || m.wood.eiken;
     data.posts.forEach(p => {
@@ -132,8 +190,28 @@ window.PostModel = (() => {
       stem.position.set(p.x * toM, (p.y0 + 10 + (SHOE_MM - 10) / 2) * toM, p.z * toM);
       group.add(stem);
     });
+    (data.walls || []).forEach(w => {
+      const c = [(w.x0 + w.x1) / 2 * toM, (w.y0 + w.y1) / 2 * toM, (w.z0 + w.z1) / 2 * toM];
+      const geo = new THREE.BoxGeometry((w.x1 - w.x0) * toM, (w.y1 - w.y0) * toM, (w.z1 - w.z0) * toM);
+      // UV in wereldmeters, zoals de gevels: texturen op dezelfde schaal.
+      const pos = geo.attributes.position, nrm = geo.attributes.normal, uv = geo.attributes.uv;
+      for (let k = 0; k < pos.count; k++) {
+        const x = pos.getX(k) + c[0], y = pos.getY(k) + c[1], z = pos.getZ(k) + c[2];
+        if (Math.abs(nrm.getX(k)) > 0.5) uv.setXY(k, z, y); else if (Math.abs(nrm.getY(k)) > 0.5) uv.setXY(k, x, z); else uv.setXY(k, x, y);
+      }
+      uv.needsUpdate = true;
+      // Volgorde van de vlakken in BoxGeometry: +x, -x, +y, -y, +z, -z.
+      const stuc = WallModel.stucMaterial(w.color), mats = [stuc, stuc, stuc, stuc, stuc, stuc];
+      const outMat = w.outside && w.out ? WallModel.claddingMaterial(w.outside) : null;
+      if (outMat) mats[w.out.x > 0 ? 0 : w.out.x < 0 ? 1 : w.out.z > 0 ? 4 : 5] = outMat;
+      const box = new THREE.Mesh(geo, mats);
+      box.position.set(...c);
+      box.castShadow = true;
+      box.receiveShadow = true;
+      group.add(box);
+    });
     return group;
   }
 
-  return { WOODS, SHOE_MM, DEFAULT_SETTINGS, normalizeSettings, compute, createMaterials, build3D };
+  return { WOODS, SHOE_MM, SIDE_MM, DEFAULT_SETTINGS, normalizeSettings, compute, createMaterials, build3D };
 })();

js/roof/roof-model.js

@@ -12,6 +12,9 @@ window.RoofModel = (() => {
   const DENSITY_DAKLEER_KGM2 = 1.4;
   const TRIM_THICK_MM = 25;
   const EDGE_ABOVE_MM = 80;
+  // Felsplaat op dak én gevel: geen boeideel; de dakplaat zet om over de rand (net vóór de gevelbekleding), zonder
+  // opstand (de waterkant van een lessenaar), tot over de bovenkant van de gevelplaten.
+  const FELS_EDGE = { lipMM: 2, aboveMM: 2, heightMM: 120 };
   const SPOT_RATIO = 0.4;
   const OVERHANG_MIN = 200, OVERHANG_MAX = 400;
 
@@ -21,8 +24,35 @@ window.RoofModel = (() => {
     spotMin: 800,
     spotMax: 1200,
     trimHeight: 80,
-    fasciaColor: 'antraciet'
+    fasciaColor: 'antraciet',
+    vent: true,
+    ventColor: 'antraciet'
   };
+  // Ventilatierooster onder de boeidelen: strook op de gevel, direct onder de onderplaat; sleuven in de textuur.
+  // Kleuren als de afdekker van het trasraam (WallModel.TRIM_COLORS).
+  const VENT = { HEIGHT_MM: 40, THICK_MM: 12, PITCH_MM: 12 };
+  const ventMaterials = {};
+  function ventMaterial(key) {
+    const k = WallModel.isTrimColor(key) ? key : 'antraciet';
+    if (ventMaterials[k]) return ventMaterials[k];
+    const base = new THREE.Color(WallModel.trimHex(k));
+    const canvas = typeof document !== 'undefined' && document.createElement('canvas');
+    const ctx = canvas && canvas.getContext && canvas.getContext('2d');
+    let mat;
+    if (!ctx) mat = new THREE.MeshStandardMaterial({ color: base, roughness: 0.5, metalness: 0.3 });
+    else {
+      canvas.width = 32; canvas.height = 32;
+      ctx.fillStyle = '#' + base.getHexString();
+      ctx.fillRect(0, 0, 32, 32);
+      ctx.fillStyle = '#' + base.clone().multiplyScalar(0.18).getHexString();
+      ctx.fillRect(11, 6, 11, 20); // sleuf, 4 mm breed en 25 mm hoog
+      const tex = new THREE.CanvasTexture(canvas);
+      tex.wrapS = THREE.RepeatWrapping;
+      tex.anisotropy = 8;
+      mat = new THREE.MeshStandardMaterial({ color: 0xffffff, map: tex, roughness: 0.5, metalness: 0.3 });
+    }
+    return (ventMaterials[k] = mat);
+  }
 
   const FASCIA_COLORS = {
     wit: { label: 'Wit', hex: 0xf2f2f0 },
@@ -35,7 +65,9 @@ window.RoofModel = (() => {
   // Riet e.d. alleen bij een hellend dak; plat valt terug op dakleer.
   // Riet: één keuze per textuur assets/textures/dak/riet_<nr>.jpg (nummer hier toevoegen).
   const RIET = { thickMM: 180, kgM2: 3.8, tileMM: 1000, nrs: ['001', '002', '003'], colors: { '001': '#947d69', '002': '#7c4c3f', '003': '#735e43' } };
-  const FELS = { thickMM: 25, kgM2: 6.5, seamMM: 500, colors: { zink: ['Felsplaat zink', '#8e9497'], antraciet: ['Felsplaat antraciet', '#3d4146'], zwart: ['Felsplaat zwart', '#1f2022'] } };
+  // Kleuren en naadafstand gedeeld met felsplaten op de gevel (WallModel.FELS).
+  const FELS = { thickMM: 25, kgM2: 6.5, seamMM: WallModel.FELS.SEAM_MM,
+    colors: Object.fromEntries(Object.entries(WallModel.FELS.COLORS).map(([k, c]) => [k, ['Felsplaat ' + c.label.toLowerCase(), c.hex]])) };
   const COVERINGS = Object.assign({
     dakleer: { label: 'Dakleer (EPDM)', kind: 'dakleer', color: '#2a2a2a', thickMM: DAKLEER_MM, kgM2: DENSITY_DAKLEER_KGM2 }
   }, ...RIET.nrs.map(nr => ({
@@ -923,7 +955,8 @@ window.RoofModel = (() => {
   }
 
   // facadeDepth negatief = gevel van een hoger deel die naar dit dak kijkt: de rand stopt tegen die gevel.
-  function computeEdge(settings, roofs, facadeDepth) {
+  // facadeFels(a, b, normal): de gevel onder deze rand heeft felsplaten (met een felsdak: geen boeideel).
+  function computeEdge(settings, roofs, facadeDepth, facadeFels) {
     const s = normalizeSettings(settings);
     const rects = roofs.map(r => r.rect);
     if (!roofs.length) return null;
@@ -967,19 +1000,23 @@ window.RoofModel = (() => {
         const j = (i + 1) % n, b = base[j];
         const mid = { x: (a.x + b.x) / 2, z: (a.z + b.z) / 2 };
         const owner = members.find(r => onRectEdge(r.rect, mid)) || members[0];
-        const fascia = owner.fascia !== false;
+        const normal = rectilinearNormal(a, b);
+        const fels = coverKind(owner.covering) === 'fels' && !!facadeFels && !!facadeFels(a, b, normal);
+        const fascia = owner.fascia !== false && !fels;
         const off = fascia ? offBoei : offTrim;
         // Tegen een hoger dak vervalt de ribbe (daar staat de gevel), boven een lager dak blijft hij zonder spots.
         const nb = others.find(r => onRectEdge(r.rect, mid));
         const dropped = !!nb && nb.topAt(mid.x, mid.z) > owner.topAt(mid.x, mid.z);
+        const above = fels ? FELS_EDGE.aboveMM : EDGE_ABOVE_MM;
         return {
-          a, b, owner: owner.unitId, fascia, normal: rectilinearNormal(a, b),
+          a, b, owner: owner.unitId, fascia, fels, covering: owner.covering, normal,
           outerA: off[i], outerB: off[j], spotA: offSpot[i], spotB: offSpot[j],
-          topAt: (p) => owner.topAt(p.x, p.z) + EDGE_ABOVE_MM, ridges: owner.ridges || [],
+          topAt: (p) => owner.topAt(p.x, p.z) + above, ridges: owner.ridges || [],
           overRoof: !!nb && !dropped, dropped
         };
       });
-      const depRaw = segs.map(sg => (facadeDepth ? facadeDepth(sg.a, sg.b, sg.normal) || 0 : 0));
+      const depIn = segs.map(sg => (facadeDepth ? facadeDepth(sg.a, sg.b, sg.normal) : 0));
+      const depRaw = depIn.map(d => d || 0);
       const dep = depRaw.map(d => Math.min(0, d));
       const spotD = depRaw.map(d => Math.max(0, d) + (s.overhang - Math.max(0, d)) * SPOT_RATIO);
       const perp = (m1, m2) => Math.abs(m1.x * m2.x + m1.z * m2.z) < 0.5;
@@ -993,7 +1030,25 @@ window.RoofModel = (() => {
           spotA: at(sg.a, sg.normal, spotD[i], pv.normal, spotD[pi]), spotB: at(sg.b, sg.normal, spotD[i], nx.normal, spotD[ni])
         };
       });
-      segs.forEach((sg, i) => Object.assign(sg, shifted[i], { facadeDepth: depRaw[i] }));
+      // facadeUnder: een eigen gevel onder de rand (niet bij een veranda of een hogere gevel ertegenaan).
+      segs.forEach((sg, i) => Object.assign(sg, shifted[i], { facadeDepth: depRaw[i], facadeUnder: depIn[i] !== null && depIn[i] >= 0 }));
+
+      // Rand zonder overstek (daktrim, felsrand): de felsrand ligt net vóór de gevelbekleding en loopt bij een hoek
+      // door tot de buitenkant van de buurrand; een boeideel ernaast stopt op de buitenkant van zo'n rand.
+      const edgeOff = (k) => segs[k].fels ? Math.max(TRIM_THICK_MM, depRaw[k] + FELS_EDGE.lipMM) : TRIM_THICK_MM;
+      const mv = (p, nrm, d) => ({ x: p.x + nrm.x * d, z: p.z + nrm.z * d });
+      segs.forEach((sg, i) => {
+        const ends = [['a', 'outerA', (i - 1 + n) % n], ['b', 'outerB', (i + 1) % n]];
+        if (sg.fels) ends.forEach(([k, ok, j]) => {
+          const nb = segs[j], q = mv(sg[k], sg.normal, edgeOff(i));
+          sg[ok] = perp(sg.normal, nb.normal) && !nb.fascia && !nb.dropped ? mv(q, nb.normal, edgeOff(j)) : q;
+        });
+        else if (sg.fascia) ends.forEach(([k, ok, j]) => {
+          const nb = segs[j];
+          if (nb.fascia || nb.dropped || !perp(sg.normal, nb.normal)) return;
+          sg[ok] = mv(mv(sg[k], sg.normal, s.overhang), nb.normal, edgeOff(j));
+        });
+      });
 
       const insideOther = (p) => others.some(r => p.x > r.rect.x0 + 0.5 && p.x < r.rect.x1 - 0.5 && p.z > r.rect.z0 + 0.5 && p.z < r.rect.z1 - 0.5);
       segs.forEach((sg, i) => {
@@ -1022,9 +1077,13 @@ window.RoofModel = (() => {
     return {
       segments, overhang: s.overhang, spotRatio: SPOT_RATIO,
       fasciaHeight: s.fasciaHeight, trimHeight: s.trimHeight, fasciaColor: s.fasciaColor,
+      vent: s.vent, ventColor: s.ventColor,
       top, edgeAbove: EDGE_ABOVE_MM,
       fasciaLengthMM: segments.filter(sg => sg.fascia).reduce((t, sg) => t + segLen(sg), 0),
-      trimLengthMM: segments.filter(sg => !sg.fascia).reduce((t, sg) => t + segLen(sg), 0),
+      ventLengthMM: s.vent ? segments.filter(sg => sg.fascia && sg.facadeUnder).reduce((t, sg) => t + Math.hypot(sg.b.x - sg.a.x, sg.b.z - sg.a.z), 0) : 0,
+      // Felsrand: zetwerk van de dakplaten, zit in de prijs van de felsplaten.
+      trimLengthMM: segments.filter(sg => !sg.fascia && !sg.fels).reduce((t, sg) => t + segLen(sg), 0),
+      felsEdgeLengthMM: segments.filter(sg => sg.fels).reduce((t, sg) => t + segLen(sg), 0),
       soffitM2: segments.filter(sg => sg.fascia).reduce((t, sg) => t + quadArea([sg.a, sg.b, sg.outerB, sg.outerA]), 0) / 1e6,
       spots: []
     };
@@ -1043,19 +1102,38 @@ window.RoofModel = (() => {
     return out;
   }
 
-  function prismGeometry(poly, topFn, h) {
-    const toM = 0.001, n = poly.length, pos = [];
+  // uAt(p): met textuur, u langs de rand; v = 0 onder, 1 boven.
+  function prismGeometry(poly, topFn, h, uAt) {
+    const toM = 0.001, n = poly.length, pos = [], uvs = [];
     const T = poly.map(p => [p.x * toM, topFn(p) * toM, p.z * toM]);
     const B = poly.map(p => [p.x * toM, (topFn(p) - h) * toM, p.z * toM]);
+    const U = uAt ? poly.map(uAt) : null;
     const tri = (a, b, c) => pos.push(...a, ...b, ...c);
-    for (let k = 1; k < n - 1; k++) { tri(T[0], T[k], T[k + 1]); tri(B[0], B[k + 1], B[k]); }
-    for (let k = 0; k < n; k++) { const j = (k + 1) % n; tri(T[k], B[k], B[j]); tri(T[k], B[j], T[j]); }
+    const uv = (...q) => { if (U) q.forEach(([k, v]) => uvs.push(U[k], v)); };
+    for (let k = 1; k < n - 1; k++) { tri(T[0], T[k], T[k + 1]); uv([0, 1], [k, 1], [k + 1, 1]); tri(B[0], B[k + 1], B[k]); uv([0, 0], [k + 1, 0], [k, 0]); }
+    for (let k = 0; k < n; k++) { const j = (k + 1) % n; tri(T[k], B[k], B[j]); uv([k, 1], [k, 0], [j, 0]); tri(T[k], B[j], T[j]); uv([k, 1], [j, 0], [j, 1]); }
     const geo = new THREE.BufferGeometry();
     geo.setAttribute('position', new THREE.Float32BufferAttribute(pos, 3));
+    if (U) geo.setAttribute('uv', new THREE.Float32BufferAttribute(uvs, 2));
     geo.computeVertexNormals();
     return geo;
   }
 
+  // Gevelvlak onder een rand (afstand langs de normaal): de dakrand plus de bekleding die erbuiten steekt.
+  function ventFace(sg) {
+    return sg.a.x * sg.normal.x + sg.a.z * sg.normal.z + Math.max(0, sg.facadeDepth || 0);
+  }
+  // Hoogte van de rand vanaf sg.topAt naar beneden: boeideel, felsrand of daktrim (met opstand boven het dak).
+  function edgeHeight(edge, sg) {
+    return sg.fascia ? edge.fasciaHeight : sg.fels ? FELS_EDGE.heightMM : edge.trimHeight + edge.edgeAbove;
+  }
+  // Kleur van de rand in tekeningen (hex-getal).
+  function edgeColor(edge, sg) {
+    if (sg.fascia) return (FASCIA_COLORS[edge.fasciaColor] || FASCIA_COLORS.antraciet).hex;
+    const c = sg.fels && COVERINGS[sg.covering];
+    return c ? parseInt(c.color.slice(1), 16) : 0xb8bcc0;
+  }
+
   function buildEdge3D(edge, materials, opts) {
     const o = opts || {};
     const toM = 0.001;
@@ -1075,9 +1153,19 @@ window.RoofModel = (() => {
         const t = (p) => alongZ ? p.z : p.x;
         polys = polys.flatMap(pl => [clipPoly(pl, p => g0 - t(p)), clipPoly(pl, p => t(p) - g1)]).filter(pl => pl.length >= 3);
       });
-      const h = sg.fascia ? edge.fasciaHeight : edge.trimHeight + edge.edgeAbove;
+      const h = edgeHeight(edge, sg);
+      const mat = sg.fascia ? materials.fasciaMaterial : sg.fels ? coveringMaterial(sg.covering) || materials.trimMaterial : materials.trimMaterial;
       polys.forEach(pl => {
-        const mesh = new THREE.Mesh(prismGeometry(pl, sg.topAt, h), sg.fascia ? materials.fasciaMaterial : materials.trimMaterial);
+        const mesh = new THREE.Mesh(prismGeometry(pl, sg.topAt, h), mat);
+        mesh.visible = o.edgeVisible !== false;
+        group.add(mesh);
+      });
+      // Rooster: op de gevel (voorkant bekleding), onder de onderplaat van het boeideel.
+      if (!sg.fascia || !sg.facadeUnder || !edge.vent) return;
+      const nd = (p) => p.x * sg.normal.x + p.z * sg.normal.z, face = ventFace(sg);
+      const u = (p) => (alongZ ? p.z : p.x) / VENT.PITCH_MM;
+      polys.map(pl => clipPoly(clipPoly(pl, p => nd(p) - face), p => face + VENT.THICK_MM - nd(p))).filter(pl => pl.length >= 3).forEach(pl => {
+        const mesh = new THREE.Mesh(prismGeometry(pl, (p) => sg.topAt(p) - h, VENT.HEIGHT_MM, u), ventMaterial(edge.ventColor));
         mesh.visible = o.edgeVisible !== false;
         group.add(mesh);
       });
@@ -1105,6 +1193,8 @@ window.RoofModel = (() => {
     s.house = { enabled: !!h.enabled, form: form && UnitModel.ROOF_TYPES[form.type] ? form : null, cover: !!h.cover };
     s.posts = PostModel.normalizeSettings(s.posts);
     if (!FASCIA_COLORS[s.fasciaColor]) s.fasciaColor = DEFAULT_SETTINGS.fasciaColor;
+    s.vent = s.vent !== false;
+    if (!WallModel.isTrimColor(s.ventColor)) s.ventColor = DEFAULT_SETTINGS.ventColor;
     return s;
   }
 
@@ -1112,6 +1202,6 @@ window.RoofModel = (() => {
     DAKLEER_MM, BESCHOT_MM, EDGE_ABOVE_MM, RIET, FELS, coverKind, OVERHANG_MIN, OVERHANG_MAX, DEFAULT_SETTINGS, SPOT_RATIO, FASCIA_COLORS, COVERINGS, coveringFor, coveringThumbUrl,
     createDefaultRoof, thickness, createMaterials, build3D, computeSpecs,
     computeShape, shapeFromProfile, shapeLines, wallProfile, profileHeight, computeUnitRoof, computeJoinedRoof, sharedRidgeBeam, joinValue, buildUnit3D, capRegions,
-    computeEdge, buildEdge3D, normalizeSettings
+    FELS_EDGE, VENT, ventFace, computeEdge, buildEdge3D, edgeHeight, edgeColor, normalizeSettings
   };
 })();

js/vendor/OrbitControls.js

@@ -4,7 +4,9 @@
 // hebben om het origineel te vendoren; dekt precies de subset die wall.js
 // gebruikt (`new THREE.OrbitControls(camera, domElement)`,
 // `controls.target.set(...)`, `controls.update()`), plus interactie:
-// links-slepen = roteren, scrollwiel = zoomen, rechts-slepen = pannen.
+// links-slepen = roteren, scrollwiel = zoomen; zijwaarts schuiven (pannen) met rechts- of middelste-knop-slepen,
+// Shift/Ctrl/⌘ + links-slepen, of de pijltjestoetsen terwijl de muis boven de weergave staat;
+// touch: één vinger = roteren, twee vingers = knijpen (zoomen) en samen schuiven (pannen).
 //
 // Moet NA three.min.js geladen worden (leunt op window.THREE).
 // ============================================================
@@ -49,7 +51,9 @@
     };
 
     function onPointerDown(event) {
-      if (event.button === 2) {
+      const panButton = event.button === 2 || event.button === 1 || (event.button === 0 && (event.shiftKey || event.ctrlKey || event.metaKey));
+      if (event.button === 1) event.preventDefault(); // geen autoscroll
+      if (panButton) {
         if (!scope.enablePan) return;
         isPanning = true;
       } else {
@@ -60,13 +64,7 @@
       lastY = event.clientY;
     }
 
-    function onPointerMove(event) {
-      if (isRotating) {
-        const dx = event.clientX - lastX;
-        const dy = event.clientY - lastY;
-        lastX = event.clientX;
-        lastY = event.clientY;
-
+    function rotate(dx, dy) {
         const w = scope.domElement.clientWidth || 1;
         const h = scope.domElement.clientHeight || 1;
 
@@ -79,12 +77,8 @@
         offset.setFromSpherical(spherical);
         scope.object.position.copy(scope.target).add(offset);
         scope.object.lookAt(scope.target);
-      } else if (isPanning) {
-        const dx = event.clientX - lastX;
-        const dy = event.clientY - lastY;
-        lastX = event.clientX;
-        lastY = event.clientY;
-
+    }
+    function pan(dx, dy) {
         const distance = scope.object.position.distanceTo(scope.target);
         const fov = (scope.object.fov || 50) * Math.PI / 180;
         const h = scope.domElement.clientHeight || 1;
@@ -95,7 +89,22 @@
         const yAxis = new THREE.Vector3(te[4], te[5], te[6]).multiplyScalar(dy * factor * scope.panSpeed);
         scope.target.add(xAxis).add(yAxis);
         scope.object.position.add(xAxis).add(yAxis);
-      }
+    }
+    function zoom(scale) {
+      offset.copy(scope.object.position).sub(scope.target);
+      const distance = Math.max(scope.minDistance, Math.min(scope.maxDistance, offset.length() * scale));
+      offset.setLength(distance);
+      scope.object.position.copy(scope.target).add(offset);
+    }
+
+    function onPointerMove(event) {
+      if (!isRotating && !isPanning) return;
+      const dx = event.clientX - lastX;
+      const dy = event.clientY - lastY;
+      lastX = event.clientX;
+      lastY = event.clientY;
+      if (isRotating) rotate(dx, dy);
+      else pan(dx, dy);
     }
 
     function onPointerUp() { isRotating = false; isPanning = false; }
@@ -103,20 +112,62 @@
     function onWheel(event) {
       if (!scope.enableZoom) return;
       event.preventDefault();
-      const scale = event.deltaY > 0 ? 1 / getZoomScale() : getZoomScale();
-      offset.copy(scope.object.position).sub(scope.target);
-      const distance = Math.max(scope.minDistance, Math.min(scope.maxDistance, offset.length() * scale));
-      offset.setLength(distance);
-      scope.object.position.copy(scope.target).add(offset);
+      zoom(event.deltaY > 0 ? 1 / getZoomScale() : getZoomScale());
     }
 
+    // Touch: midden en afstand van de vingers; bij een wissel van het aantal vingers opnieuw beginnen.
+    let touch = null;
+    function touchState(list) {
+      const a = list[0], b = list[1] || list[0];
+      return { n: list.length, x: (a.clientX + b.clientX) / 2, y: (a.clientY + b.clientY) / 2, d: Math.hypot(a.clientX - b.clientX, a.clientY - b.clientY) };
+    }
+    function onTouchStart(event) {
+      event.preventDefault();
+      touch = touchState(event.touches);
+    }
+    function onTouchMove(event) {
+      if (!touch) return;
+      event.preventDefault();
+      const t = touchState(event.touches);
+      if (t.n !== touch.n) { touch = t; return; }
+      if (t.n === 1) { if (scope.enableRotate) rotate(t.x - touch.x, t.y - touch.y); }
+      else {
+        if (scope.enablePan) pan(t.x - touch.x, t.y - touch.y);
+        if (scope.enableZoom && t.d > 0 && touch.d > 0) zoom(touch.d / t.d);
+      }
+      touch = t;
+    }
+    function onTouchEnd(event) { touch = event.touches.length ? touchState(event.touches) : null; }
+
     function onContextMenu(event) { event.preventDefault(); }
 
+    // Pijltjestoetsen: schuiven terwijl de muis boven de weergave staat (niet in een invoerveld).
+    let hover = false;
+    const onEnter = () => { hover = true; };
+    const onLeave = () => { hover = false; };
+    const KEY_PAN = { ArrowLeft: [1, 0], ArrowRight: [-1, 0], ArrowUp: [0, 1], ArrowDown: [0, -1] };
+    function onKeyDown(event) {
+      const d = KEY_PAN[event.key];
+      if (!d || !hover || !scope.enablePan || event.altKey || event.ctrlKey || event.metaKey) return;
+      const t = event.target, tag = t && t.tagName;
+      if (tag === 'INPUT' || tag === 'TEXTAREA' || tag === 'SELECT' || (t && t.isContentEditable)) return;
+      event.preventDefault();
+      const step = (scope.domElement.clientHeight || 400) * (event.shiftKey ? 0.25 : 0.08);
+      pan(d[0] * step, d[1] * step);
+    }
+
     this.domElement.addEventListener('mousedown', onPointerDown);
     window.addEventListener('mousemove', onPointerMove);
     window.addEventListener('mouseup', onPointerUp);
     this.domElement.addEventListener('wheel', onWheel, { passive: false });
     this.domElement.addEventListener('contextmenu', onContextMenu);
+    this.domElement.addEventListener('mouseenter', onEnter);
+    this.domElement.addEventListener('mouseleave', onLeave);
+    window.addEventListener('keydown', onKeyDown);
+    this.domElement.addEventListener('touchstart', onTouchStart, { passive: false });
+    this.domElement.addEventListener('touchmove', onTouchMove, { passive: false });
+    this.domElement.addEventListener('touchend', onTouchEnd);
+    this.domElement.addEventListener('touchcancel', onTouchEnd);
 
     this.dispose = function () {
       scope.domElement.removeEventListener('mousedown', onPointerDown);
@@ -124,6 +175,13 @@
       window.removeEventListener('mouseup', onPointerUp);
       scope.domElement.removeEventListener('wheel', onWheel);
       scope.domElement.removeEventListener('contextmenu', onContextMenu);
+      scope.domElement.removeEventListener('mouseenter', onEnter);
+      scope.domElement.removeEventListener('mouseleave', onLeave);
+      window.removeEventListener('keydown', onKeyDown);
+      scope.domElement.removeEventListener('touchstart', onTouchStart);
+      scope.domElement.removeEventListener('touchmove', onTouchMove);
+      scope.domElement.removeEventListener('touchend', onTouchEnd);
+      scope.domElement.removeEventListener('touchcancel', onTouchEnd);
     };
   }
 

js/vendor/model-viewer.LICENSE

@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
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+      the copyright owner that is granting the License.
+
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+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
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+
+      "Work" shall mean the work of authorship, whether in Source or
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js/wall/wall-model.js

@@ -72,6 +72,67 @@ window.WallModel = (() => {
       return mat;
     }
 
+    // Felsplaten (staande naad) op de gevel: zelfde opbouw als verticale rabat (doek, latten, bekleding), alleen het
+    // materiaal verschilt. Kleuren ook voor het dak (RoofModel.FELS). In 3D de naden als textuur over het blok.
+    const FELS = {
+      SEAM_MM: 500, TILE_SEAMS: 6,
+      COLORS: {
+        zink: { label: 'Zink', hex: '#8e9497' },
+        antraciet: { label: 'Antraciet', hex: '#3d4146' },
+        zwart: { label: 'Zwart', hex: '#1f2022' }
+      }
+    };
+    const isFelsColor = (key) => !!FELS.COLORS[key];
+    const felsHex = (key) => (FELS.COLORS[key] || FELS.COLORS.antraciet).hex;
+    const felsMaterials = {};
+    function felsMaterial(key) {
+      const k = isFelsColor(key) ? key : 'antraciet';
+      if (felsMaterials[k]) return felsMaterials[k];
+      let mat;
+      const canvas = typeof document !== 'undefined' && document.createElement('canvas');
+      const ctx = canvas && canvas.getContext && canvas.getContext('2d');
+      if (!ctx) mat = new THREE.MeshStandardMaterial({ color: felsHex(k), roughness: 0.4, metalness: 0.55 });
+      else {
+        const B = 100, N = FELS.TILE_SEAMS; // 5 mm/px
+        canvas.width = B * N;
+        canvas.height = 16;
+        const base = new THREE.Color(felsHex(k));
+        const shade = (f) => '#' + base.clone().multiplyScalar(f).getHexString();
+        const col = (a, b, color) => { ctx.fillStyle = color; ctx.fillRect(a, 0, b - a, canvas.height); };
+        for (let i = 0; i < N; i++) {
+          const a = i * B, f = 0.97 + ((i * 29) % 7) / 100; // per baan net iets anders
+          col(a, a + B, shade(f));
+          col(a + 6, a + 14, shade(f * 1.04));    // lichte zetting naast de naad
+          col(a, a + 2, shade(f * 0.6));          // schaduw van de naad
+          col(a + 2, a + 5, shade(f * 1.35));     // staande naad (licht)
+        }
+        const tex = new THREE.CanvasTexture(canvas);
+        tex.wrapS = tex.wrapT = THREE.RepeatWrapping;
+        tex.repeat.set(1000 / (FELS.SEAM_MM * N), 1);
+        tex.anisotropy = 8;
+        mat = new THREE.MeshStandardMaterial({ color: 0xffffff, map: tex, roughness: 0.4, metalness: 0.55 });
+      }
+      felsMaterials[k] = mat;
+      return mat;
+    }
+
+    // Afwerking in zetwerk (aluminium, gepoedercoat): afdekker op een stenen trasraam en het ventilatierooster onder
+    // de boeidelen.
+    const TRIM_COLORS = {
+      zwart: { label: 'Zwart', hex: '#1f2022' },
+      antraciet: { label: 'Antraciet', hex: '#3d4146' },
+      wit: { label: 'Wit', hex: '#f3f2ee' }
+    };
+    const isTrimColor = (key) => !!TRIM_COLORS[key];
+    const trimHex = (key) => (TRIM_COLORS[key] || TRIM_COLORS.antraciet).hex;
+    const trimMaterials = {};
+    function trimMaterial(key) {
+      const k = isTrimColor(key) ? key : 'antraciet';
+      return trimMaterials[k] || (trimMaterials[k] = new THREE.MeshStandardMaterial({ color: trimHex(k), roughness: 0.45, metalness: 0.3 }));
+    }
+    // Afdekker trasraam: bovenkant 5° aflopend (85° met de neus), neus 25 mm over de steen, 3 mm ervoor.
+    const TRAS_CAP = { SLOPE_DEG: 5, DROP_MM: 25, GAP_MM: 3, THICK_MM: 2 };
+
     function claddingOffset(buitenMateriaal, stone, stuc) {
       if (buitenMateriaal === 'vochtdoek') return 2 * BATTEN.thick + CLADDING_THICK_MM;
       if (buitenMateriaal !== 'cementplaat') return 0;
@@ -121,11 +182,19 @@ window.WallModel = (() => {
       return mat;
     }
 
+    // Materiaal van een gevelbekleding (UV in meters): felsplaten, steen, stuc of rabat; null = kale plaat.
+    function claddingMaterial(f) {
+      if (isFelsColor(f.fels)) return felsMaterial(f.fels);
+      if (isStoneFinish(f.stone)) return stoneMaterial(f.stone);
+      if (isStucColor(f.stuc)) return stucMaterial(f.stuc);
+      return f.rabatColor ? rabatMaterial(f.rabatColor, f.cladding) : null;
+    }
+
     // Hoogte vanaf het loopvlak (= onderkant van de wand).
     const TRASRAAM_DEFAULT_MM = 350;
-    function trasraamFor(heightMM, finish) {
+    function trasraamFor(heightMM, finish, capColor) {
       if (!(heightMM > 0)) return null;
-      return { bottom: 0, top: heightMM, finish: finish || 'cementplaat' };
+      return { bottom: 0, top: heightMM, finish: finish || 'cementplaat', capColor: isTrimColor(capColor) ? capColor : 'antraciet' };
     }
 
     // Textuur 2062 × 1125 px op 2 mm/px. JOINT_MM: hart onderste voeg boven de onderrand (gemeten 1-2 px);
@@ -751,8 +820,8 @@ window.WallModel = (() => {
     function build3D(CONFIG, calcData, opts) {
       const { woodMaterial, spaanplaatMaterial, doekMaterial, cementplaatMaterial, battenMaterial } = opts.materials;
       const buitenMateriaal = opts.buitenMateriaal || 'vochtdoek';
-      const stage = BuildStages.clamp(opts.stage);
-      const show = (key) => BuildStages.shows(stage, key);
+      const layers = ViewLayers.normalize(opts.layers);
+      const show = (key) => layers[key];
       const spaanplaatVisible = opts.spaanplaatVisible !== false && show('beplating');
       const buitenVisible = opts.buitenVisible !== false;
       const cladding = opts.cladding || 'horizontaal';
@@ -763,6 +832,7 @@ window.WallModel = (() => {
       const skinFrom = opts.skinFrom > 0 ? opts.skinFrom : 0;
       const painted = !!opts.painted;
       const stone = buitenMateriaal === 'cementplaat' && isStoneFinish(opts.stone) ? opts.stone : null;
+      const felsKey = buitenMateriaal === 'vochtdoek' && isFelsColor(opts.fels) ? opts.fels : null;
       // spaanplaatBelow: naadwand geheel in één unit; onder het dak van de andere unit is het een binnenwand.
       const spaanplaatBelow = !!opts.spaanplaatBelow && skinFrom > 0 && buitenMateriaal === 'vochtdoek';
       const rabatOn = buitenMateriaal === 'vochtdoek' && buitenVisible && show('gevel');
@@ -792,11 +862,11 @@ window.WallModel = (() => {
       let spaanplaatBuitenAreaM2 = 0;
       let spaanplaatBuitenVolumeM3 = 0;
       let battenLengthM = 0, battenVolumeM3 = 0, battenCount = 0, battenPieces = 0;
-      let rabatAreaM2 = 0;
+      let rabatAreaM2 = 0, felsAreaM2 = 0;
       let trasraamAreaM2 = 0, trasraamVolumeM3 = 0;
       let stoneAreaM2 = 0, stoneIsolatieM3 = 0;
       let stucAreaM2 = 0;
-      let trasraamStoneAreaM2 = 0, trasraamIsolatieM3 = 0;
+      let trasraamStoneAreaM2 = 0, trasraamIsolatieM3 = 0, trasraamCapM = 0;
       let horizBeamCount = 0;
 
       function createExtrudedBeam(shape, depth, positionZ) {
@@ -1055,6 +1125,41 @@ window.WallModel = (() => {
         return { areaM2: area(mid) + area(caps), isoM3: area(mid) * tIso };
       }
 
+      // Afdekker op een stenen trasraam waar de gevel erboven minder ver uitsteekt (rabat, felsplaat, stuc): zetwerk
+      // over de bovenkant van de steen, achter de bekleding beginnend, aan de voorkant een neus over de steen. Onderbroken
+      // waar een opening door de bovenkant van het trasraam gaat; bij een buitenhoek tot voorbij de steen van de buurwand.
+      function stoneCap(tr) {
+        const C = TRAS_CAP, T = tr.top * toM;
+        const zB = (maxDepth / 2) + skinGapM + sThickM + skinGapM, zF = zB + STONE.THICK_MM * toM;
+        const zIn = zF + C.GAP_MM * toM, zOut = zIn + C.THICK_MM * toM, lip = zOut - zF;
+        const yFront = T + C.THICK_MM * toM, yBack = yFront + Math.tan(C.SLOPE_DEG * Math.PI / 180) * (zOut - zB);
+        const ext = extM(CONFIG.sheathingThick + 2 * SKIN_GAP_MM + STONE.THICK_MM);
+        const a = -halfW - ext.left - (ext.left > 0 ? lip : 0), b = halfW + ext.right + (ext.right > 0 ? lip : 0);
+        const yLo = T - C.DROP_MM * toM;
+        const cuts = outerHoles.filter(h => h.hy0 < yBack && h.hy1 > yLo).map(h => [h.hx0, h.hx1]).sort((p, q) => p[0] - q[0]);
+        const runs = [];
+        let x = a;
+        cuts.forEach(([c0, c1]) => { if (c0 > x) runs.push([x, Math.min(b, c0)]); x = Math.max(x, c1); });
+        if (x < b) runs.push([x, b]);
+        const shape = new THREE.Shape([
+          [zB, T + 0.0005], [zIn, T + 0.0005], [zIn, yLo], [zOut, yLo], [zOut, yFront], [zB, yBack]
+        ].map(([pz, py]) => new THREE.Vector2(pz, py)));
+        let lengthM = 0;
+        runs.forEach(([r0, r1]) => {
+          if (r1 - r0 <= edgeEps) return;
+          lengthM += r1 - r0;
+          if (!buitenVisible || !show('gevel')) return;
+          // Profiel in (z, y), langs de wand uitgetrokken: -90° om Y legt de extrusie langs -X.
+          const mesh = new THREE.Mesh(new THREE.ExtrudeGeometry(shape, { steps: 1, depth: r1 - r0, bevelEnabled: false }), trimMaterial(tr.capColor));
+          mesh.rotation.y = -Math.PI / 2;
+          mesh.position.x = r1;
+          mesh.castShadow = true;
+          mesh.receiveShadow = true;
+          wallGroup3D.add(mesh);
+        });
+        return lengthM;
+      }
+
       function stucBlock(colorKey, y0) {
         const zB = (maxDepth / 2) + skinGapM + sThickM + skinGapM;
         const t = STUC.THICK_MM * toM;
@@ -1176,6 +1281,7 @@ window.WallModel = (() => {
             const r = stoneBlock(trasraam.finish, trasraam.bottom * toM, trasraam.top * toM, { y: trasraam.top * toM, down: true });
             trasraamStoneAreaM2 = r.areaM2;
             trasraamIsolatieM3 = r.isoM3;
+            if (stucKey) trasraamCapM = stoneCap(trasraam);
             y0 = trasraam.top * toM;
           } else if (trasraam) {
             const tras = buildVerticalBoardSkin(cementplaatMaterial, 'front', buitenVisible && show('latwerk'), {
@@ -1253,6 +1359,7 @@ window.WallModel = (() => {
           const r = stoneBlock(trasraam.finish, trasraam.bottom * toM, trasraam.top * toM, { y: trasraam.top * toM, down: true });
           trasraamStoneAreaM2 = r.areaM2;
           trasraamIsolatieM3 = r.isoM3;
+          trasraamCapM = stoneCap(trasraam);
         } else if (trasraam) {
           const tras = buildVerticalBoardSkin(cementplaatMaterial, 'front', buitenVisible && show('latwerk'), {
             y0: trasraam.bottom * toM, y1: trasraam.top * toM, zExtra: sThickM + (rowIndex + 1) * doekZStepM + skinGapM
@@ -1294,6 +1401,7 @@ window.WallModel = (() => {
             return shape;
           }) : [];
         rabatAreaM2 = rabatShapes.reduce((sum, shape) => sum + shapeAreaWithHoles(shape), 0);
+        if (felsKey) { felsAreaM2 = rabatAreaM2; rabatAreaM2 = 0; }
         if (rabatOn && rabatShapes.length) {
           const geo = new THREE.ExtrudeGeometry(rabatShapes, { steps: 1, depth: rabatDepthMM * toM, bevelEnabled: false });
           const gridM = (facade && facade.gridY0 !== undefined ? facade.gridY0 : skinStartY(trasraam)) * toM;
@@ -1303,7 +1411,7 @@ window.WallModel = (() => {
             if (Math.abs(nrm.getX(k)) > 0.5) uv.setXY(k, z, y); else if (Math.abs(nrm.getY(k)) > 0.5) uv.setXY(k, x, z); else uv.setXY(k, x, y);
           }
           uv.needsUpdate = true;
-          const mesh = new THREE.Mesh(geo, rabatMaterial(opts.rabatColor, cladding));
+          const mesh = new THREE.Mesh(geo, felsKey ? felsMaterial(felsKey) : rabatMaterial(opts.rabatColor, cladding));
           mesh.position.set(0, 0, zDoek);
           mesh.castShadow = true;
           mesh.receiveShadow = true;
@@ -1311,7 +1419,7 @@ window.WallModel = (() => {
         }
       }
 
-      if (show('gevel') && window.KozijnModel) {
+      if (show('kozijnen') && window.KozijnModel) {
         const sh = CONFIG.sheathingThick, half = CONFIG.studDepth / 2;
         const exterior = buitenMateriaal === 'vochtdoek' || buitenMateriaal === 'cementplaat';
         const place = exterior ? { zOut: half + sh, depth: KozijnModel.PROFILE.depth, exterior: true }
@@ -1384,13 +1492,14 @@ window.WallModel = (() => {
           }
         });
       }
+      if (!show('regelwerk')) ViewLayers.hideByMaterial(wallGroup3D, [woodMaterial]);
 
       return {
         group: wallGroup3D,
         stats: {
           woodVolumeM3, spaanplaatVolumeM3, spaanplaatAreaM2, cementplaatVolumeM3, cementplaatAreaM2, doekAreaM2,
           spaanplaatBuitenAreaM2, spaanplaatBuitenVolumeM3, horizBeamCount,
-          battenLengthM, battenVolumeM3, battenCount, battenPieces, rabatAreaM2, trasraamAreaM2, trasraamVolumeM3, trasraamStoneAreaM2, trasraamIsolatieM3, stoneAreaM2, stoneIsolatieM3, stucAreaM2
+          battenLengthM, battenVolumeM3, battenCount, battenPieces, rabatAreaM2, felsAreaM2, trasraamAreaM2, trasraamVolumeM3, trasraamStoneAreaM2, trasraamIsolatieM3, trasraamCapM, stoneAreaM2, stoneIsolatieM3, stucAreaM2
         }
       };
     }
@@ -1619,8 +1728,8 @@ window.WallModel = (() => {
     }
 
     return {
-      STANDARD_BEAM, STOCK_LENGTHS_MM, CORNER_STUDS, EXTERIOR_MATERIALS, OPENING_TYPES, BATTEN, CLADDING_DIRECTIONS, CLADDING_THICK_MM, RABAT, RABAT_COLORS, rabatHex, STUC, STUC_COLORS, isStucColor, stucHex, claddingOffset, cornerExt, TRASRAAM_DEFAULT_MM, STONE, STONE_COLORS, TRASRAAM_STONES, isStoneFinish, stoneThumbUrl, trasraamFor, skinStartY, computeBattens, planPurchase, purchaseText,
-      stoneMaterial, stucMaterial, sheathingHoles, skinSegmentsAtY, topLine, skinConfig, wallTopPoints, topPlateOutlines, openingTopAt, openingTopMax, openingArea, openingSpanAtY,
+      STANDARD_BEAM, STOCK_LENGTHS_MM, CORNER_STUDS, EXTERIOR_MATERIALS, OPENING_TYPES, BATTEN, CLADDING_DIRECTIONS, CLADDING_THICK_MM, RABAT, RABAT_COLORS, rabatHex, FELS, isFelsColor, felsHex, TRIM_COLORS, isTrimColor, trimHex, trimMaterial, TRAS_CAP, STUC, STUC_COLORS, isStucColor, stucHex, claddingOffset, cornerExt, TRASRAAM_DEFAULT_MM, STONE, STONE_COLORS, TRASRAAM_STONES, isStoneFinish, stoneThumbUrl, trasraamFor, skinStartY, computeBattens, planPurchase, purchaseText,
+      stoneMaterial, stucMaterial, felsMaterial, claddingMaterial, sheathingHoles, skinSegmentsAtY, topLine, skinConfig, wallTopPoints, topPlateOutlines, openingTopAt, openingTopMax, openingArea, openingSpanAtY,
       validateState, resolveOpenings, computeBOM, groupBOM, buildConfig, configFromState, thicknessOf, computeFrame,
       createMaterials, build3D, computeSpecs
     };

js/wall/wall.js

@@ -6,7 +6,10 @@
  */
 
 const WALL_TEMPLATE = `
-  <div id="app-container">
+  <div id="app-container" class="ed-app">
+   <div class="ed-main">
+    <div class="ed-toolbar" id="wall-toolbar"></div>
+    <div class="ed-views">
     <div id="left-column">
       <div id="pane-2d-container">
         <div class="pane-2d-sub pane-2d-primary" id="pane-2d-front">
@@ -24,8 +27,16 @@ const WALL_TEMPLATE = `
           </div>
         </div>
       </div>
+    </div>
+    <div id="right-column">
+      <div id="pane-3d">
+        <div class="pane-label">3D</div>
+      </div>
+    </div>
+    </div>
+   </div>
 
-      <div id="control-panel">
+      <div id="control-panel" class="ed-panel">
         <div class="io-toolbar">
           <input type="file" id="file-import-json" accept="application/json" style="display:none;">
           <span id="io-status" class="io-status"></span>
@@ -34,6 +45,7 @@ const WALL_TEMPLATE = `
           <button class="tab-btn active" data-tab="tab-wall"><i class="bi bi-rulers"></i> Opbouw</button>
           <button class="tab-btn" data-tab="tab-opening"><i class="bi bi-door-open"></i> Openingen</button>
           <button class="tab-btn" data-tab="tab-materials"><i class="bi bi-layers"></i> Materiaal</button>
+          <button class="tab-btn" data-tab="tab-specs"><i class="bi bi-clipboard-data"></i> Resultaat</button>
         </div>
 
         <!-- TAB 1: WAND -->
@@ -104,10 +116,6 @@ const WALL_TEMPLATE = `
                 <div><input type="number" id="inp-max-sp" value="480" step="10" min="150" max="1500"><span class="unit">mm</span></div>
               </div>
 
-              <div class="divider"></div>
-              <div class="result-row"><span>Verticale balken</span><span data-spec="vert-beams" class="highlight">-</span></div>
-              <div class="result-row"><span>Horizontale balken</span><span data-spec="horiz-beams" class="highlight">-</span></div>
-              <div class="result-row"><span>Dakhelling</span><span data-spec="roof-angle" class="highlight">-</span></div>
             </div>
           </div>
         </div>
@@ -138,17 +146,10 @@ const WALL_TEMPLATE = `
           </div>
         </div>
 
-      </div>
-    </div>
-
-    <div id="right-column">
-      <div id="pane-3d">
-        <div class="pane-label">3D</div>
-        <div class="toolbar-3d" id="wall-toolbar-3d"></div>
-      </div>
 
+        <div id="tab-specs" class="tab-content">
       <div id="specs-panel-3d">
-        <div class="controls-grid">
+        <div>
           <div>
             <div class="spec-section">
               <h1><i class="bi bi-columns-gap"></i> Balken</h1>
@@ -188,6 +189,7 @@ const WALL_TEMPLATE = `
       </div>
     </div>
   </div>
+</div>
 
   <div id="wall-project-overlay">
     <div id="wall-project-modal">
@@ -218,8 +220,8 @@ const WALL_TEMPLATE = `
         </div>
       </div>
       <div class="modal-footer">
-        <button type="button" id="wall-project-cancel" class="io-btn">Annuleren</button>
-        <button type="button" id="wall-project-save" class="material-toggle-btn active" style="flex:none; padding:6px 18px;">Opslaan</button>
+        <button type="button" id="wall-project-cancel" class="ui-btn" data-esc>Annuleren</button>
+        <button type="button" id="wall-project-save" class="ui-btn ui-btn-primary">Opslaan</button>
       </div>
     </div>
   </div>
@@ -333,16 +335,6 @@ function mountWallEditor(container, callbacks) {
       updateAll();
     }
 
-    function toggleFullscreen3D() {
-      UI.cycle3D(document.getElementById('app-container'));
-      requestAnimationFrame(onWindowResize);
-    }
-
-    function toggleFullscreen2D() {
-      UI.toggle2D(document.getElementById('app-container'));
-      requestAnimationFrame(onWindowResize);
-    }
-
     const PROJECT_PROP_IDS = ['inp-proj-naam', 'inp-proj-plaats', 'inp-proj-straat', 'inp-proj-nummer',
       'inp-proj-tekenaar', 'inp-proj-titel', 'inp-proj-element', 'inp-proj-opmerking'];
     let projectPropsSnapshot = null;
@@ -608,7 +600,7 @@ function mountWallEditor(container, callbacks) {
     function getPureState() {
       return {
         wall: collectWallParams(),
-        materials: { interior: 'spaanplaat', exterior: buitenMateriaal, cladding, trasraam, stone, stuc, rabatColor },
+        materials: { interior: 'spaanplaat', exterior: buitenMateriaal, cladding, trasraam, stone, stuc, rabatColor, fels },
         openings: openings.map(rawOpening)
       };
     }
@@ -637,6 +629,7 @@ function mountWallEditor(container, callbacks) {
       stone = (state.materials && state.materials.stone) || null;
       stuc = (state.materials && state.materials.stuc) || null;
       rabatColor = (state.materials && state.materials.rabatColor) || null;
+      fels = (state.materials && state.materials.fels) || null;
       syncMaterialButtons();
 
       openings = state.openings.map(rawOpening);
@@ -1279,14 +1272,14 @@ function mountWallEditor(container, callbacks) {
 
     const wallMaterials = WallModel.createMaterials();
 
-    // Alleen knoppen met data-material/-cladding: de "Opslaan"-knop van Project eigenschappen heeft ook de klasse material-toggle-btn.
     let buitenMateriaal = 'vochtdoek';
     let cladding = 'horizontaal';
     let trasraam = null;
     let stone = null;
     let stuc = null;
     let rabatColor = null;
-    let stage = BuildStages.FINAL;
+    let fels = null;
+    let layers = ViewLayers.all();
     function syncMaterialButtons() {
       document.querySelectorAll('.material-toggle-btn[data-material]').forEach(b => b.classList.toggle('active', b.dataset.material === buitenMateriaal));
       document.querySelectorAll('.material-toggle-btn[data-cladding]').forEach(b => b.classList.toggle('active', b.dataset.cladding === cladding));
@@ -1303,29 +1296,32 @@ function mountWallEditor(container, callbacks) {
 
     let spaanplaatVisible = true;
     let buitenVisible = true;
-    createViewFilter(document.getElementById('wall-toolbar-3d'), [
-      { key: 'binnen', label: 'Beplating binnenzijde' },
-      { key: 'buiten', label: 'Beplating buitenzijde' }
-    ], (v) => {
-      spaanplaatVisible = v.binnen;
-      buitenVisible = v.buiten;
-      update3DScene();
-    });
     let skyMode = Skybox.getMode();
     const skyEnv = Skybox.createEnvironment(scene);
     const applySky = () => {
       skyEnv.fitTo(wallGroup3D, 0);
       Skybox.apply(skyMode, { env: skyEnv, grid, controls, sun: dirLight, ambient, base: { ambient: 0.6, sun: 0.8 }, shadowRoot: wallGroup3D });
     };
-    Skybox.createToggle(document.getElementById('wall-toolbar-3d'), (m) => { skyMode = m; applySky(); });
-    BuildStages.createBar(pane3D, stage, (st) => { stage = st; update3DScene(); });
+    const toolbar = document.getElementById('wall-toolbar');
+    const bar = UI.editorBar(toolbar, document.getElementById('app-container'), {
+      left: `<div class="tb-group tb-tools">${UI.tb('Spiegelen', 'symmetry-vertical', 'data-wt="mirror" title="Horizontaal spiegelen (Shift+H)"')}</div>`,
+      onResize: onWindowResize,
+      layers: {
+        layers, keys: ['regelwerk', 'beplating', 'doek', 'latwerk', 'gevel', 'kozijnen', 'afwerking'],
+        onChange: (l) => { layers = l; update3DScene(); },
+        extras: [{ key: 'binnen', label: 'Beplating binnenzijde' }, { key: 'buiten', label: 'Beplating buitenzijde' }],
+        onExtra: (v) => { spaanplaatVisible = v.binnen; buitenVisible = v.buiten; update3DScene(); }
+      },
+      onSky: (m) => { skyMode = m; applySky(); }
+    });
+    toolbar.querySelector('[data-wt="mirror"]').addEventListener('click', () => mirrorHorizontal());
 
     let lastWallStats = null;
 
     function update3DScene() {
       if (wallGroup3D) scene.remove(wallGroup3D);
       const result = WallModel.build3D(CONFIG, calcData, {
-        materials: wallMaterials, buitenMateriaal, cladding, trasraam, stone, stuc, rabatColor, spaanplaatVisible, buitenVisible, stage
+        materials: wallMaterials, buitenMateriaal, cladding, trasraam, stone, stuc, rabatColor, fels, spaanplaatVisible, buitenVisible, layers
       });
       wallGroup3D = result.group;
       lastWallStats = result.stats;
@@ -1419,8 +1415,8 @@ function mountWallEditor(container, callbacks) {
       exportDesign,
       triggerImport,
       mirrorHorizontal,
-      toggleFullscreen3D,
-      toggleFullscreen2D,
+      setView: bar.setView,
+      viewState: bar.viewState,
       openProjectProperties,
       getStateJson: getPureState,
       loadStateJson: applyPureState

kosten/intern.csv

@@ -30,6 +30,7 @@ gevel.vochtdoekMontageM;Montage vochtdoek per strekkende meter wand;s/m;600
 gevel.rabatMontage;Montage rabat;s/m²;600
 gevel.steenMontage;Montage steenstrips;s/m²;1800
 gevel.stucMontage;Stucwerk aanbrengen (wapenen, pleisteren);s/m²;1500
+gevel.felsMontage;Montage felsplaten gevel (ook dagkanten en hoeken);s/m²;2100
 dak.dakleerMontage;Montage dakleer;s/m²;600
 dak.rietMontage;Montage riet;s/m²;3600
 dak.beschotMontage;Montage dakbeschot;s/m²;150
@@ -41,6 +42,7 @@ dak.nokPlaatsen;Stalen nokbalk plaatsen, stellen en vastzetten;s;2700
 dak.nokVulhoutMontage;Vulhout in de holling van de nokbalk aanbrengen (beide zijden);s/m;240
 dak.nokPersoneel;Personeel bij plaatsen nokbalk (i.p.v. de bezetting);man;3
 dak.paalMontage;Paal plaatsen: stellen, aftoppen, vastzetten aan het dak;s/st.;2700
+dak.zijwandMontage;Zijwand overkapping maken en plaatsen;s/m²;5400
 vloer.afwerkingMontage;Montage vloerafwerking;s/m²;1200
 vloer.sandwichMontage;Montage per sandwichpaneel;s;600
 afwerking.valsPlafondMontage;Montage vals plafond;s/m²;1800

kosten/leveranciers.csv

@@ -12,6 +12,7 @@ gevel.vochtdoekM2;Vochtdoek;€/m²;1,5;;;
 gevel.rabatM2;Rabat (gevelbekleding);€/m²;35;;;
 gevel.steenM2;Steenstrips (gevel + trasraam);€/m²;60;;;
 gevel.stucM2;Stucwerk gevel (wapening + sierpleister op cementgebonden plaat);€/m²;45;;;
+gevel.felsM2;Felsplaten gevel, staande naad (staal, klangen, ondergrond);€/m²;70;;;
 dak.dakleerM2;Dakleer (EPDM);€/m²;18;;;
 dak.rietM2;Riet;€/m²;90;;;
 dak.beschotM2;Dakbeschot OSB 18 mm (bovenop de sporen);€/m²;14;;;
@@ -23,6 +24,7 @@ dak.staalKg;Stalen nokbalk IPE S235 (op maat gezaagd, geboord, gegrond);€/kg;2
 dak.nokOplegging;Oplegging nokbalk (stalen schoen + bouten), 2 per balk;€/st.;45;;;
 dak.paalHoutM3;Paalhout overkapping (eiken, geschaafd);€/m³;2400;;;
 dak.paalvoet;Paalvoet verzinkt, verstelbaar (incl. ankers);€/st.;40;;;
+dak.zijwandM2;Zijwand overkapping (regelwerk, cementgebonden plaat en stuc aan beide kanten, fundering);€/m²;140;;;
 vloer.afwerkingM2;Vloerafwerking;€/m²;35;;;
 vloer.sandwichM2;Sandwichpaneel;€/m²;35;;;
 afwerking.valsPlafondM2;Vals plafond (regelwerk + gipsplaat, afgewerkt);€/m²;38;;;

light.html

@@ -0,0 +1,98 @@
+<!DOCTYPE html>
+<!--
+  Tectum
+  Copyright © 2026 Machiel Heinen.
+  Alle rechten voorbehouden. Gebruik uitsluitend met schriftelijke toestemming.
+  Zie LICENTIE.md.
+-->
+<!-- Light-versie (modelpagina's), voorlopig los: light.html?model=amstel. Op een modelpagina is alleen het
+     <div class="tectum-light" data-model="…"> plus de stylesheets en scripts hieronder nodig. -->
+<html lang="nl">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>Woning samenstellen — Van Emous Mantelzorgwoningen</title>
+  <link rel="stylesheet" href="css/vendor/bootstrap-icons.min.css">
+  <link rel="stylesheet" href="css/light.css">
+  <style>
+    body { margin: 0; padding: 24px; background: #f9faf5; color: #212121; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
+    .page { max-width: 1400px; margin: 0 auto; }
+    .page-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 16px; }
+    .page-head img { height: 34px; }
+    .page-head select, .page-head button { font: inherit; padding: 6px 10px; border: 1px solid #c5ced9; border-radius: 8px; background: #fff; }
+    @media (max-width: 820px) { body { padding: 12px; } }
+  </style>
+  <script src="js/vendor/three.min.js"></script>
+  <script src="js/vendor/OrbitControls.js"></script>
+</head>
+<body>
+  <div class="page">
+    <div class="page-head">
+      <img src="assets/logo.svg" alt="Van Emous Mantelzorgwoningen">
+      <!-- Alleen voor het losse testen: op een modelpagina staat het model vast. -->
+      <div>
+        <select id="model-pick" aria-label="Model"></select>
+        <!-- Alleen voor het testen: de GLB die op een telefoon in AR wordt getoond (bijv. in Blender of een glTF-viewer). -->
+        <button type="button" id="glb-dl" title="De GLB die AR gebruikt downloaden">GLB</button>
+      </div>
+    </div>
+    <div id="configurator" class="tectum-light"></div>
+  </div>
+
+  <script src="js/core/logo-data.js"></script>
+  <script src="js/core/geometry.js"></script>
+  <script src="js/core/view-layers.js"></script>
+  <script src="js/core/ui-kit.js"></script>
+  <script src="js/core/skybox.js"></script>
+  <script src="js/core/glb-writer.js"></script>
+  <script src="js/vendor/jspdf.umd.min.js"></script>
+  <script src="js/vendor/qrcode.js"></script>
+  <script src="js/core/pdf-sheet.js"></script>
+  <script src="js/wall/kozijn-model.js"></script>
+  <script src="js/wall/wall-model.js"></script>
+  <script src="js/wall/wall-pdf.js"></script>
+  <script src="js/floor/floor-model.js"></script>
+  <script src="js/floor/floor-pdf.js"></script>
+  <script src="js/roof/roof-model.js"></script>
+  <script src="js/roof/post-model.js"></script>
+  <script src="js/lighting/lighting-model.js"></script>
+  <script src="js/elektra/elektra-model.js"></script>
+  <script src="js/sandwich/sandwich-model.js"></script>
+  <script src="js/wall/wall.js"></script>
+  <script src="js/floor/floor.js"></script>
+  <script src="js/unit/unit-model.js"></script>
+  <script src="js/room/room-model.js"></script>
+  <script src="js/interior/fixture-model.js"></script>
+  <script src="js/house/chimney-model.js"></script>
+  <script src="js/house/house-model.js"></script>
+  <script src="js/cost/cost-defaults.js"></script>
+  <script src="js/cost/cost-csv.js"></script>
+  <script src="js/cost/cost-model.js"></script>
+  <script src="js/elektra/elektra-pdf.js"></script>
+  <script src="js/house/house-pdf.js"></script>
+  <script src="js/light/light-model.js"></script>
+  <script src="js/light/light-pdf.js"></script>
+  <script>
+    // Model uit de URL (?model=amstel); de keuzelijst herlaadt de pagina met een ander model.
+    (function () {
+      const key = new URLSearchParams(location.search).get('model');
+      const model = HouseModel.MODELS[key] ? key : Object.keys(HouseModel.MODELS)[0];
+      const pick = document.getElementById('model-pick');
+      pick.innerHTML = Object.entries(HouseModel.MODELS).map(([k, m]) => `<option value="${k}"${k === model ? ' selected' : ''}>${m.label}</option>`).join('');
+      pick.addEventListener('change', () => { location.search = '?model=' + pick.value; });
+      const el = document.getElementById('configurator'), btn = document.getElementById('glb-dl');
+      el.dataset.model = model;
+      btn.addEventListener('click', () => {
+        const g = el.tectumLight && el.tectumLight.glb();
+        if (!g) return;
+        const a = document.createElement('a');
+        a.href = g.url;
+        a.download = `${model}.glb`;
+        a.click();
+        btn.textContent = `GLB · ${(g.stats.bytes / 1e6).toLocaleString('nl-NL', { maximumFractionDigits: 1 })} MB · ${g.stats.triangles.toLocaleString('nl-NL')} driehoeken`;
+      });
+    })();
+  </script>
+  <script src="js/light/light.js"></script>
+</body>
+</html>