/* ==========================================================================
   RUANG v2 · calm interior identity, rebuilt to premium modern standard.
   Plaster daylight ground, cobalt accent, big airy type, layered depth.
   Lesson CSS lives at the end (canvases, [data-3d] variants, gate classes).
   ========================================================================== */

/* ---------- tokens ---------- */
:root{
  color-scheme: light;
  --ground:#ECE8DF;
  --paper:#F7F4ED;
  --sunk:#DFD9CB;
  --ink:#1B1915;
  --muted:#6F6759;
  --line:rgba(27,25,21,.13);
  --line-strong:rgba(27,25,21,.32);
  --accent:#2946B9;
  --accent-deep:#1D339A;
  --accent-ink:#FFFFFF;
  --accent-soft:#DDE3F8;
  --sun:#E9D8BA;
  --walnut:#6E4B2F; --oak:#C9A97A; --ash:#2B2926;
  --moss:#5E6B4E; --chalk:#EFEAE0; --tan:#B8794B;
  --ok:#3D7A4A; --warn:#B0742A; --bad:#B23A3A;
  --shadow-soft:0 24px 60px -28px rgba(27,25,21,.35);
  --shadow-deep:0 60px 120px -48px rgba(27,25,21,.5), 0 24px 48px -32px rgba(27,25,21,.28);
  --r:12px; --r-lg:22px;
  --ease:cubic-bezier(.22,.75,.25,1);
  --spring:cubic-bezier(.34,1.56,.64,1);
  --font-display:"Bricolage Grotesque","Helvetica Neue",Arial,sans-serif;
  --font-body:"Karla","Segoe UI",system-ui,sans-serif;
  --font-mono:"JetBrains Mono",Consolas,"Courier New",monospace;
}

/* ---------- base ---------- */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--ground);color:var(--ink);
  font-family:var(--font-body);font-size:18px;line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:clip;
}
img{max-width:100%;display:block}
button,input,select{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
a{color:inherit}
::selection{background:var(--accent);color:var(--accent-ink)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
h1,h2,h3{font-family:var(--font-display);font-weight:500;letter-spacing:-.015em;line-height:1.02;margin:0;text-wrap:balance}
h1{font-size:clamp(3rem,6vw,5.7rem);font-variation-settings:"opsz" 96;font-weight:600}
h2{font-size:clamp(2.2rem,3.8vw,3.4rem);font-variation-settings:"opsz" 72}
h3{font-size:1.4rem;font-variation-settings:"opsz" 24}
p{margin:0}
.eyebrow{font-family:var(--font-mono);font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.wrap{width:min(1320px,calc(100% - 5rem));margin-inline:auto}
section{padding-block:clamp(5.5rem,9vw,8.5rem)}
.sec-head{display:flex;justify-content:space-between;align-items:end;gap:3rem;margin-bottom:clamp(2.5rem,4vw,4rem);flex-wrap:wrap}
.sec-head .eyebrow{margin-bottom:1.1rem}
.sec-head p{max-width:32rem;color:var(--muted);font-size:1.05rem}

/* ---------- buttons & fields ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.6rem;
  padding:1rem 1.7rem;border-radius:999px;font-weight:600;font-size:1rem;
  border:1.5px solid var(--ink);text-decoration:none;position:relative;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s,color .25s,border-color .25s;
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0) scale(.985)}
.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);box-shadow:0 14px 30px -14px rgba(41,70,185,.55)}
.btn.primary:hover{background:var(--accent-deep);border-color:var(--accent-deep);box-shadow:0 20px 40px -16px rgba(41,70,185,.6)}
.btn.ghost{border-color:var(--line-strong);background:transparent}
.btn.ghost:hover{border-color:var(--ink)}
.btn.small{padding:.6rem 1.1rem;font-size:.95rem}
.field{display:flex;flex-direction:column;gap:.5rem}
.field label{font-size:.92rem;color:var(--muted);font-weight:500}
.field input,.field select{
  background:var(--paper);border:1.5px solid var(--line);border-radius:var(--r);
  padding:.9rem 1.1rem;min-width:0;transition:border-color .2s,box-shadow .2s;
}
.field input:focus,.field select:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 4px var(--accent-soft)}

/* ---------- topbar ---------- */
.top{
  position:sticky;top:0;z-index:40;
  background:color-mix(in srgb,var(--ground) 78%,transparent);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:4.8rem;gap:2rem}
.brand{display:flex;align-items:baseline;gap:1rem;text-decoration:none}
.brand b{font-family:var(--font-display);font-size:1.65rem;font-weight:700;letter-spacing:.02em}
.brand span{color:var(--muted);font-size:.92rem}
.nav{display:flex;gap:2.2rem;font-weight:500;font-size:.98rem}
.nav a{text-decoration:none;position:relative}
.nav a::after{content:"";position:absolute;left:0;right:100%;bottom:-7px;height:2px;background:var(--accent);transition:right .3s var(--ease)}
.nav a:hover::after{right:0}
.bag-btn{
  display:inline-flex;align-items:center;gap:.65rem;padding:.6rem .7rem .6rem 1.15rem;
  border:1.5px solid var(--ink);border-radius:999px;font-weight:600;
  transition:transform .2s var(--ease),background .2s,color .2s;
}
.bag-btn:hover{transform:translateY(-1px)}
.bag-btn .count{
  min-width:1.6rem;height:1.6rem;padding-inline:.4rem;border-radius:999px;
  background:var(--accent);color:var(--accent-ink);display:grid;place-items:center;
  font-size:.85rem;font-family:var(--font-mono);
}
.bag-btn .count.is-bump{animation:bump .5s var(--spring)}
@keyframes bump{0%{transform:scale(1)}35%{transform:scale(1.35)}100%{transform:scale(1)}}

/* ---------- hero ---------- */
.hero{padding-block:clamp(3rem,5vw,4.5rem) clamp(4rem,7vw,6rem);position:relative;min-height:min(88vh,60rem);display:flex;align-items:center}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:clamp(2rem,4vw,4.5rem);align-items:center;width:min(1320px,calc(100% - 5rem));margin-inline:auto}
.hero-copy{display:flex;flex-direction:column;gap:2rem;position:relative;z-index:7}
.hero-h1 .hl{display:block;overflow:hidden}
.hero-h1 .hl>span{display:inline-block;transform:translateY(110%);animation:hl-in 1s var(--ease) forwards}
.hero-h1 .hl:nth-child(2)>span{animation-delay:.09s}
.hero-h1 .hl:nth-child(3)>span{animation-delay:.18s}
@keyframes hl-in{to{transform:none}}
.hero-copy .lead{font-size:1.18rem;color:var(--muted);max-width:27rem}
.hero-cta{display:flex;gap:1rem;flex-wrap:wrap}
.hero-stage{position:relative;aspect-ratio:1/1.04;max-height:74vh;margin-inline:auto;width:100%;max-width:36rem}
.vignette{
  position:absolute;inset:0;border-radius:calc(var(--r-lg) + 8px);overflow:hidden;
  background:
    radial-gradient(120% 90% at 78% 6%,color-mix(in srgb,var(--sun) 80%,#fff) 0%,transparent 52%),
    radial-gradient(90% 70% at 16% 90%,#D9D2C2 0%,transparent 58%),
    linear-gradient(168deg,#F3EFE6 0%,#E5DFD1 58%,#DCD5C4 100%);
  box-shadow:var(--shadow-deep),inset 0 1px 0 rgba(255,255,255,.7);
}
.vignette::before{
  content:"";position:absolute;left:8%;right:8%;bottom:12%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(27,25,21,.16),transparent);
}
.vignette::after{ /* the sunbeam */
  content:"";position:absolute;top:-12%;right:6%;width:44%;height:80%;
  background:linear-gradient(196deg,rgba(255,248,230,.85),rgba(255,248,230,0) 70%);
  transform:skewX(-14deg);filter:blur(6px);opacity:.7;
}
.hero-dock{position:absolute;inset:11% 4% 8%;touch-action:pan-y}
html.go-full .hero-dock{cursor:grab}
html.go-full .hero-dock.is-dragging{cursor:grabbing}
.hero-poster{
  position:absolute;inset:0;width:100%;height:100%;object-fit:contain;
  transition:opacity .9s var(--ease);
}
.hero-poster.is-missing{opacity:0}
.hero-dock.is-3d .hero-poster{opacity:0}
.hero-hint{
  position:absolute;left:50%;bottom:3.2%;transform:translateX(-50%);
  font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);
  opacity:0;transition:opacity .6s ease .4s,transform .4s ease;pointer-events:none;
}
.hero-dock.is-3d ~ .hero-hint{opacity:.85}
.hero-hint.is-hidden{opacity:0!important;transform:translate(-50%,6px)}
.hero-tag{
  position:absolute;top:1.4rem;left:1.6rem;font-size:.72rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--muted);
}
.hero-more{
  position:absolute;left:50%;bottom:1.2rem;transform:translateX(-50%);
  font-size:.7rem;letter-spacing:.22em;text-transform:uppercase;color:var(--muted);text-decoration:none;
  padding-bottom:1.3rem;
}
.hero-more::after{
  content:"";position:absolute;left:50%;bottom:0;width:1px;height:1rem;background:var(--muted);
  animation:drop 1.8s var(--ease) infinite;
}
@keyframes drop{0%{transform:scaleY(0);transform-origin:top}55%{transform:scaleY(1);transform-origin:top}56%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* ---------- rooms ---------- */
.rooms{padding-top:clamp(4rem,7vw,6.5rem)}
.rooms-head{display:flex;align-items:end;justify-content:space-between;gap:2rem;flex-wrap:wrap;margin-bottom:2.6rem}
.room-tabs{display:flex;gap:clamp(1.4rem,3vw,3.2rem);flex-wrap:wrap}
.room-tab{text-align:left;position:relative;padding:.2rem 0 1rem;transition:color .25s}
.room-tab .name{font-family:var(--font-display);font-size:clamp(1.6rem,2.6vw,2.4rem);font-weight:500;letter-spacing:-.01em;display:flex;align-items:baseline;gap:.7rem;color:var(--muted);transition:color .3s}
.room-tab .idx{font-family:var(--font-mono);font-size:.75rem;color:var(--muted);transition:color .3s}
.room-tab .meta{display:block;margin-top:.25rem;font-size:.85rem;color:var(--muted);font-family:var(--font-mono)}
.room-tab::after{content:"";position:absolute;left:0;bottom:0;height:2.5px;width:0;background:var(--accent);transition:width .4s var(--ease)}
.room-tab:hover .name{color:var(--ink)}
.room-tab[aria-selected="true"] .name{color:var(--ink)}
.room-tab[aria-selected="true"] .idx{color:var(--accent)}
.room-tab[aria-selected="true"]::after{width:100%}
.scene-shell{position:relative}
.scene{
  position:relative;border-radius:var(--r-lg);overflow:hidden;background:var(--sunk);
  aspect-ratio:16/9;box-shadow:var(--shadow-deep);
  transform:perspective(1600px) rotateX(var(--ry,0deg)) rotateY(var(--rx,0deg));
  transform-style:preserve-3d;transition:transform .5s var(--ease);
}
.scene.is-tilting{transition:transform .12s ease-out}
.scene img{width:100%;height:100%;object-fit:cover;transition:opacity .45s ease,transform .8s var(--ease)}
.scene.switching img{opacity:0;transform:scale(1.025)}
.scene .noimg{position:absolute;inset:0;display:grid;place-items:center;font-family:var(--font-display);font-size:3rem;color:var(--muted);background:linear-gradient(160deg,var(--sunk),var(--paper))}
.scene-shade{
  position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(27,25,21,.08),transparent 22%,transparent 72%,rgba(27,25,21,.16));
}
#hotspots{position:absolute;inset:0;transform:translateZ(28px)}
.hot{
  position:absolute;width:2.7rem;height:2.7rem;margin:-1.35rem 0 0 -1.35rem;border-radius:50%;
  display:grid;place-items:center;color:var(--accent-ink);
  background:color-mix(in srgb,var(--accent) 92%,#000);
  font-family:var(--font-mono);font-size:.85rem;font-weight:500;
  box-shadow:0 10px 26px -8px rgba(13,22,64,.55),inset 0 1px 0 rgba(255,255,255,.25);
  transition:transform .3s var(--spring),box-shadow .3s;
  animation:hot-pop .65s var(--spring) both;animation-delay:var(--d,0s);
}
@keyframes hot-pop{0%{transform:scale(.15);opacity:0}60%{opacity:1}100%{transform:scale(1);opacity:1}}
.hot::before{
  content:"";position:absolute;inset:-7px;border-radius:50%;border:1.5px solid var(--accent);
  opacity:.65;animation:pulse 2.6s ease-out infinite;animation-delay:calc(var(--d,0s) + .6s);
}
.hot:hover,.hot:focus-visible{transform:scale(1.14);box-shadow:0 16px 34px -8px rgba(13,22,64,.6)}
.hot:active{transform:scale(1.02)}
.hot .tip{
  position:absolute;left:calc(100% + .9rem);top:50%;transform:translateY(-50%) translateX(-4px);
  white-space:nowrap;background:color-mix(in srgb,var(--paper) 88%,transparent);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  color:var(--ink);padding:.6rem .95rem;border-radius:10px;border:1px solid rgba(255,255,255,.5);
  font-family:var(--font-body);font-size:.95rem;box-shadow:var(--shadow-soft);
  opacity:0;pointer-events:none;transition:opacity .22s,transform .3s var(--ease);
  display:flex;gap:.75rem;align-items:baseline;
}
.hot .tip b{font-weight:600}
.hot .tip span{color:var(--muted);font-family:var(--font-mono);font-size:.85rem}
.hot:hover .tip,.hot:focus-visible .tip{opacity:1;transform:translateY(-50%)}
.hot.flip .tip{left:auto;right:calc(100% + .9rem)}
@keyframes pulse{0%{transform:scale(.8);opacity:.8}100%{transform:scale(1.75);opacity:0}}
@media (pointer:coarse){.hot{width:3rem;height:3rem;margin:-1.5rem 0 0 -1.5rem}}
.room-list{
  position:relative;z-index:2;width:min(100%,64rem);margin:-3.4rem auto 0;
  display:grid;grid-template-columns:1fr auto;gap:2rem;align-items:center;
  padding:1.8rem 2.2rem;border-radius:var(--r-lg);
  background:color-mix(in srgb,var(--paper) 86%,transparent);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border:1px solid rgba(255,255,255,.55);box-shadow:var(--shadow-soft);
}
.room-list ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.6rem 1.8rem}
.room-list li{display:flex;gap:.6rem;align-items:baseline}
.room-list li i{font-style:normal;font-family:var(--font-mono);font-size:.8rem;color:var(--accent)}
.room-list li button{
  text-decoration:underline;text-decoration-color:transparent;text-underline-offset:4px;
  font-weight:500;transition:text-decoration-color .25s,color .25s;
}
.room-list li button:hover{text-decoration-color:var(--accent);color:var(--accent)}
.room-total{text-align:right;display:flex;flex-direction:column;gap:.8rem;align-items:flex-end}
.room-total .sum{font-family:var(--font-display);font-size:2rem;font-weight:500;letter-spacing:-.01em}
.room-total .sum small{font-size:.88rem;color:var(--muted);font-family:var(--font-body);font-weight:400;margin-left:.5rem;letter-spacing:0}

/* ---------- catalogue ---------- */
.controls{display:flex;gap:.9rem;flex-wrap:wrap}
.controls select{
  background:var(--paper);border:1.5px solid var(--line);border-radius:999px;
  padding:.65rem 2.6rem .65rem 1.2rem;appearance:none;font-weight:500;
  background-image:linear-gradient(45deg,transparent 50%,var(--ink) 50%),linear-gradient(135deg,var(--ink) 50%,transparent 50%);
  background-position:calc(100% - 1.35rem) 55%,calc(100% - 1.05rem) 55%;
  background-size:5px 5px;background-repeat:no-repeat;
  transition:border-color .2s,box-shadow .2s;
}
.controls select:hover{border-color:var(--line-strong)}
.controls select:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 4px var(--accent-soft)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:3.4rem 2.4rem}
.card{
  display:flex;flex-direction:column;gap:1.15rem;text-align:left;border-radius:var(--r-lg);
  transition:transform .45s var(--ease);perspective:1100px;
}
.card:hover{transform:translateY(-6px)}
/* Aceternity tilt: 3d.js writes --px/--py; the photo leans toward the cursor. */
.card .ph{transform:rotateX(calc(var(--py,0) * -3.5deg)) rotateY(calc(var(--px,0) * 3.5deg))}
.card.is-tilting .ph{transition:box-shadow .45s var(--ease),transform .14s ease-out}
.card .ph{
  position:relative;aspect-ratio:1;border-radius:var(--r-lg);overflow:hidden;background:var(--sunk);
  box-shadow:0 1px 0 rgba(255,255,255,.6) inset,0 18px 40px -24px rgba(27,25,21,.3);
  transition:box-shadow .45s var(--ease),transform .5s var(--ease);
}
.card:hover .ph{box-shadow:0 1px 0 rgba(255,255,255,.6) inset,var(--shadow-soft)}
.card .ph img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.card:hover .ph img{transform:scale(1.055)}
.card .noimg{position:absolute;inset:0;display:grid;place-items:center;font-family:var(--font-display);font-size:4rem;color:var(--muted);background:linear-gradient(160deg,var(--sunk),var(--paper))}
.card .ph .cta{
  position:absolute;left:1rem;right:1rem;bottom:1rem;display:flex;justify-content:space-between;align-items:center;
  background:color-mix(in srgb,var(--paper) 92%,transparent);backdrop-filter:blur(10px);
  border-radius:999px;padding:.6rem .6rem .6rem 1.2rem;
  transform:translateY(calc(100% + 1.6rem));opacity:0;
  transition:transform .45s var(--spring),opacity .3s;font-weight:600;
}
.card .ph .cta span{padding:.4rem .9rem;border-radius:999px;background:var(--accent);color:var(--accent-ink);font-size:.9rem}
.card:hover .ph .cta,.card:focus-visible .ph .cta{transform:none;opacity:1}
.card .row{display:flex;justify-content:space-between;align-items:baseline;gap:1rem}
.card .name{font-family:var(--font-display);font-size:1.45rem;font-weight:500;letter-spacing:-.01em}
.card .price{font-family:var(--font-mono);font-size:1rem}
.card .mat{color:var(--muted);font-size:.98rem}
.card .dims{font-family:var(--font-mono);font-size:.8rem;color:var(--muted)}
.card .tag{
  position:absolute;top:1.1rem;left:1.1rem;background:color-mix(in srgb,var(--paper) 92%,transparent);
  backdrop-filter:blur(8px);padding:.35rem .8rem;border-radius:999px;font-size:.8rem;font-weight:600;
}

/* ---------- fit checker ---------- */
.fit{background:var(--paper);border-block:1px solid var(--line)}
.fit-grid{display:grid;grid-template-columns:minmax(19rem,25rem) 1fr;gap:clamp(2.5rem,5vw,5rem);align-items:start}
.fit-form{display:flex;flex-direction:column;gap:1.6rem}
.fit-form .eyebrow{margin-bottom:1.1rem}
.fit-lead{color:var(--muted);margin-top:1.2rem;font-size:1.02rem}
.fit-form .two{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.verdict{
  padding:1.4rem 1.6rem;border-radius:var(--r-lg);border:1.5px solid var(--line);
  display:flex;flex-direction:column;gap:.4rem;background:var(--ground);
  transition:border-color .4s,box-shadow .4s;
}
.verdict b{font-family:var(--font-display);font-size:1.45rem;font-weight:500;display:flex;align-items:center;gap:.6rem;transition:color .3s}
.verdict b::before{content:"";width:.65rem;height:.65rem;border-radius:50%;background:currentColor;flex:none}
.verdict span{color:var(--muted);font-size:.98rem}
.verdict[data-state="ok"]{border-color:color-mix(in srgb,var(--ok) 45%,transparent)}
.verdict[data-state="ok"] b{color:var(--ok)}
.verdict[data-state="tight"]{border-color:color-mix(in srgb,var(--warn) 50%,transparent)}
.verdict[data-state="tight"] b{color:var(--warn)}
.verdict[data-state="bad"]{border-color:color-mix(in srgb,var(--bad) 50%,transparent)}
.verdict[data-state="bad"] b{color:var(--bad)}
.plan{
  background:var(--ground);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:clamp(1.2rem,2.5vw,2.4rem);min-height:26rem;box-shadow:var(--shadow-soft);
  background-image:radial-gradient(rgba(27,25,21,.07) 1px,transparent 1.2px);
  background-size:22px 22px;
}
.plan svg{width:100%;height:auto;display:block}
.plan text{font-family:var(--font-mono);font-size:11px;fill:var(--muted)}
.plan .room{fill:none;stroke:var(--ink);stroke-width:2}
.plan .floor{fill:var(--paper)}
.plan .piece{fill:var(--accent);fill-opacity:.16;stroke:var(--accent);stroke-width:2}
.plan .clear{fill:none;stroke:var(--accent);stroke-width:1;stroke-dasharray:4 4;opacity:.7}
.plan .door{fill:none;stroke:var(--muted);stroke-width:1.5}
.plan .lbl{fill:var(--ink);font-size:12px;font-weight:500}

/* ---------- materials ---------- */
.mats{display:grid;grid-template-columns:repeat(3,1fr);gap:3rem 2.4rem}
.mat-card{display:flex;flex-direction:column;gap:1.1rem}
.mat-card canvas,.mat-card .fab{
  width:100%;aspect-ratio:4/3;border-radius:var(--r-lg);display:block;border:1px solid var(--line);
  box-shadow:0 18px 40px -26px rgba(27,25,21,.35);transition:transform .5s var(--ease),box-shadow .5s var(--ease);
}
.mat-card:hover canvas,.mat-card:hover .fab{transform:translateY(-4px) scale(1.012);box-shadow:var(--shadow-soft)}
.mat-card h3{display:flex;justify-content:space-between;align-items:baseline}
.mat-card h3 span{font-family:var(--font-mono);font-size:.85rem;color:var(--muted);font-weight:400}
.mat-card p{color:var(--muted);font-size:1rem}
.fab{position:relative;overflow:hidden}
.fab::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(0,0,0,.12) 1px,transparent 1.3px);background-size:6px 6px;mix-blend-mode:multiply}
.fab.chalk{background:var(--chalk)}
.fab.moss{background:var(--moss)}
.fab.tan{background:linear-gradient(135deg,#C4864F,#A8683C)}
.fab.tan::after{background-image:radial-gradient(rgba(0,0,0,.18) 1px,transparent 1.5px);background-size:9px 9px}

/* ---------- delivery ---------- */
.deliver-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(3rem,6vw,6rem);align-items:start}
.deliver-grid .eyebrow{margin-bottom:1.1rem}
.deliver-lead{color:var(--muted);margin:1.2rem 0 2rem;max-width:30rem}
.deliver .field{max-width:22rem}
.lanes{display:flex;flex-direction:column;border-top:1px solid var(--line-strong)}
.lane{display:grid;grid-template-columns:auto 1fr auto;gap:1.8rem;padding:1.7rem 0;border-bottom:1px solid var(--line);align-items:center;transition:padding-left .3s var(--ease)}
.lane:hover{padding-left:.5rem}
.lane .wk{font-family:var(--font-display);font-size:2.2rem;min-width:5.5rem;font-weight:500}
.lane .wk small{font-size:.75rem;color:var(--muted);display:block;font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;margin-top:.15rem}
.lane p{color:var(--muted);font-size:.98rem}
.lane b{display:block;font-size:1.08rem}
.lane .fee{font-family:var(--font-mono)}

/* ---------- footer ---------- */
footer{padding:clamp(4rem,7vw,6rem) 0 3.5rem;border-top:1px solid var(--line);color:var(--muted);font-size:.98rem}
footer .wrap{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:2.5rem}
footer b{color:var(--ink);display:block;margin-bottom:.8rem;font-family:var(--font-display);font-size:1.2rem}
footer ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:.5rem}
footer a{text-decoration:none;transition:color .2s}
footer a:hover{color:var(--accent)}

/* ---------- sheet & drawer ---------- */
.scrim{position:fixed;inset:0;background:rgba(22,20,16,.45);backdrop-filter:blur(3px);opacity:0;pointer-events:none;transition:opacity .35s;z-index:50}
.scrim.on{opacity:1;pointer-events:auto}
.sheet{
  position:fixed;top:0;right:0;height:100%;width:min(31rem,100%);
  background:var(--paper);z-index:60;transform:translateX(105%);
  transition:transform .5s cubic-bezier(.22,.9,.24,1);
  display:flex;flex-direction:column;box-shadow:-30px 0 80px -30px rgba(27,25,21,.4);
  border-radius:var(--r-lg) 0 0 var(--r-lg);
}
.sheet.on{transform:none}
.sheet header{display:flex;justify-content:space-between;align-items:center;padding:1.3rem 1.8rem;border-bottom:1px solid var(--line)}
.sheet header .eyebrow{color:var(--ink)}
.sheet .body{overflow:auto;flex:1;padding:1.8rem;display:flex;flex-direction:column;gap:1.7rem;overscroll-behavior:contain}
.sheet .body>*{flex-shrink:0}
.sheet footer{padding:1.3rem 1.8rem;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:.9rem;color:var(--ink)}
.x{width:2.5rem;height:2.5rem;border-radius:50%;border:1.5px solid var(--line);display:grid;place-items:center;font-size:1.1rem;transition:transform .3s var(--spring),border-color .2s}
.x:hover{transform:rotate(90deg);border-color:var(--ink)}
.pdp-img{aspect-ratio:1;border-radius:var(--r-lg);overflow:hidden;background:var(--sunk);position:relative}
.pdp-img img{width:100%;height:100%;object-fit:cover}
.pdp-img .noimg{position:absolute;inset:0;display:grid;place-items:center;font-family:var(--font-display);font-size:4rem;color:var(--muted)}
.pdp-title{display:flex;justify-content:space-between;align-items:baseline;gap:1rem}
.pdp-title h3{font-size:1.8rem}
.pdp-title .price{font-family:var(--font-mono);font-size:1.15rem}
.pdp-desc{color:var(--muted)}
.opt h4{margin:0 0 .8rem;font-size:.95rem;font-weight:600;display:flex;justify-content:space-between}
.opt h4 span{color:var(--muted);font-weight:400}
.sw-row{display:flex;gap:.75rem}
.sw{
  width:3.1rem;height:3.1rem;border-radius:50%;border:2px solid transparent;padding:3px;
  background-clip:content-box;transition:border-color .25s,transform .3s var(--spring);
}
.sw[aria-pressed="true"]{border-color:var(--accent)}
.sw:hover{transform:scale(1.1)}
.sw:active{transform:scale(.96)}
.specs{display:grid;grid-template-columns:auto 1fr;gap:.5rem 1.5rem;font-size:.95rem;padding:1.2rem 1.3rem;background:var(--ground);border-radius:var(--r)}
.specs dt{color:var(--muted)}
.specs dd{margin:0;font-family:var(--font-mono);font-size:.9rem}
.note{font-size:.92rem;color:var(--muted)}
.qty{display:inline-flex;border:1.5px solid var(--line);border-radius:999px;overflow:hidden}
.qty button{width:2.3rem;height:2.3rem;transition:background .2s}
.qty button:hover{background:var(--ground)}
.qty span{min-width:2rem;display:grid;place-items:center;font-family:var(--font-mono)}
.bag-item{display:grid;grid-template-columns:5rem 1fr auto;gap:1.1rem;align-items:start;padding-bottom:1.3rem;border-bottom:1px solid var(--line)}
.bag-item .th{aspect-ratio:1;border-radius:10px;overflow:hidden;background:var(--sunk)}
.bag-item .th img{width:100%;height:100%;object-fit:cover}
.bag-item .cfg{color:var(--muted);font-size:.92rem}
.bag-item .rm{font-size:.85rem;color:var(--muted);text-decoration:underline;text-underline-offset:3px;margin-top:.5rem}
.bag-item .rm:hover{color:var(--bad)}
.bag-item .p{font-family:var(--font-mono);text-align:right}
.toggle{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:1.05rem 1.2rem;border:1.5px solid var(--line);border-radius:var(--r-lg)}
.toggle b{display:block}
.toggle small{color:var(--muted)}
.sw-toggle{width:3rem;height:1.7rem;border-radius:999px;background:var(--line-strong);position:relative;flex:none;transition:background .25s}
.sw-toggle::after{content:"";position:absolute;top:3px;left:3px;width:1.3rem;height:1.3rem;border-radius:50%;background:var(--paper);transition:transform .3s var(--spring)}
.sw-toggle[aria-checked="true"]{background:var(--accent)}
.sw-toggle[aria-checked="true"]::after{transform:translateX(1.3rem)}
.totals{display:grid;grid-template-columns:1fr auto;gap:.45rem 1rem;font-size:1rem}
.totals .t{font-family:var(--font-mono);text-align:right}
.totals .big{font-family:var(--font-display);font-size:1.55rem;padding-top:.55rem;border-top:1px solid var(--line);margin-top:.35rem}
.empty{text-align:center;color:var(--muted);padding:3.5rem 0;display:flex;flex-direction:column;gap:1.1rem;align-items:center}
.steps{display:flex;gap:.6rem;font-family:var(--font-mono);font-size:.8rem;color:var(--muted)}
.steps span[aria-current]{color:var(--accent)}
.done{display:flex;flex-direction:column;gap:1.1rem;align-items:flex-start}
.done .num{font-family:var(--font-mono);font-size:1.4rem;padding:.7rem 1.1rem;border:1.5px dashed var(--accent);border-radius:8px;color:var(--accent)}
.toast{
  position:fixed;left:50%;bottom:2rem;transform:translate(-50%,calc(100% + 2.5rem));
  background:var(--ink);color:var(--ground);padding:.9rem 1.4rem;border-radius:999px;
  font-weight:500;z-index:70;transition:transform .45s var(--spring);
  display:flex;gap:1rem;align-items:center;box-shadow:var(--shadow-deep);
}
.toast.on{transform:translate(-50%,0)}
.toast button{color:var(--accent-soft);text-decoration:underline}

/* ---------- reveal (catalogue cards, re-rendered on filter) ---------- */
.rv{opacity:0;transform:translateY(26px) scale(.985);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.rv.in{opacity:1;transform:none}
.card.rv.in{transition:transform .45s var(--ease)} /* hover lift stays snappy after reveal */
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}

/* ---------- responsive ---------- */
@media (max-width:1100px){.grid,.mats{grid-template-columns:repeat(2,1fr)}}
@media (max-width:960px){
  .wrap{width:min(1320px,calc(100% - 2.6rem))}
  .hero{min-height:0;display:block}
  .hero-grid{grid-template-columns:1fr;width:min(1320px,calc(100% - 2.6rem))}
  .hero-stage{max-width:30rem;aspect-ratio:1/1}
  .hero-more{display:none}
  .fit-grid,.deliver-grid{grid-template-columns:1fr}
  .nav{display:none}
  .room-list{grid-template-columns:1fr;margin-top:-2rem;width:calc(100% - 2rem);padding:1.4rem 1.5rem}
  .room-total{align-items:flex-start;text-align:left}
  footer .wrap{grid-template-columns:1fr 1fr}
  section{padding-block:4rem}
}
@media (max-width:600px){
  .grid,.mats{grid-template-columns:1fr}
  .brand span{display:none}
  .room-tabs{gap:1.2rem}
  .sheet{border-radius:0}
}

/* ==========================================================================
   LESSONS · 3D  (see 3d.js)
   ========================================================================== */

/* L3 · the soft animated background: fixed, behind everything. */
.bg-3d{position:fixed;inset:0;width:100%;height:100%;z-index:-1;pointer-events:none}

/* L1/L4 · the hero piece lives on ONE fixed transparent canvas above the flow
   (below the topbar and sheets) and docks into .hero-dock. Explicit CSS size:
   a canvas without width/height collapses under the renderer's buffer size. */
.hero-3d{
  position:fixed;inset:0;width:100%;height:100%;z-index:6;pointer-events:none;
  opacity:0;transition:opacity 1.1s var(--ease);
}
.hero-3d.is-on{opacity:1}

/* L4 · hairline loading state while the GLB decodes (poster stays beneath). */
.load-hair{
  position:absolute;left:18%;right:18%;bottom:6%;height:2px;border-radius:2px;
  background:rgba(27,25,21,.12);overflow:hidden;opacity:1;transition:opacity .6s ease;
}
.load-hair::before{
  content:"";position:absolute;inset:0;transform-origin:0 50%;
  transform:scaleX(var(--load,0));background:var(--accent);transition:transform .4s var(--ease);
}
.load-hair.is-done{opacity:0}

/* L2 · scroll-linked section transitions. 3d.js writes --p (0 to 1); geometry
   lives here. --p defaults to 1 so nothing is invisible without JS; html.has-3d
   (added by 3d.js) arms it at 0. */
[data-3d]{--p:1;transform-origin:50% 100%;opacity:calc(var(--p) * 1.25 - .25)}
.has-3d [data-3d]{--p:0;will-change:transform,opacity}
[data-3d="rise"]{
  transform:perspective(1400px) rotateX(calc((1 - var(--p)) * 16deg)) translateY(calc((1 - var(--p)) * 64px)) scale(calc(.955 + var(--p) * .045));
}
[data-3d="hinge-left"]{
  transform-origin:0% 50%;
  transform:perspective(1400px) rotateY(calc((1 - var(--p)) * -26deg)) translateX(calc((1 - var(--p)) * -40px));
}
[data-3d="hinge-right"]{
  transform-origin:100% 50%;
  transform:perspective(1400px) rotateY(calc((1 - var(--p)) * 26deg)) translateX(calc((1 - var(--p)) * 40px));
}
[data-3d="foot"]{
  transform-origin:50% 0%;
  transform:perspective(1800px) rotateX(calc((1 - var(--p)) * 14deg)) translateY(calc((1 - var(--p)) * 10%));
}
/* Aceternity Container Scroll: the room scene un-tilts as it arrives. */
[data-3d="container"]{
  transform-origin:50% 20%;
  transform:perspective(1700px) rotateX(calc((1 - var(--p)) * 12deg)) scale(calc(.94 + var(--p) * .06));
  opacity:calc(var(--p) * 1.4 - .15);
}
@media (prefers-reduced-motion:reduce){
  .has-3d [data-3d]{--p:1}
  *{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .hero-h1 .hl>span{transform:none;animation:none}
  .hot{animation:none}
}
/* Hinged full-width blocks overflow small viewports under perspective. */
@media (max-width:920px){
  [data-3d="hinge-left"],[data-3d="hinge-right"]{
    transform-origin:50% 100%;
    transform:perspective(1400px) rotateX(calc((1 - var(--p)) * 16deg)) translateY(calc((1 - var(--p)) * 64px)) scale(calc(.955 + var(--p) * .045));
  }
}