:root{
  --ink:#29382f;--ink2:#52634e;--muted:#7b8470;--olive:#3b5140;--olive2:#4f6650;--cream:#f5f0e4;--cream2:#fbf8f0;--line:#74806a33;--gold:#9a6f34;
  --sky-a:#faf6ea;--sky-b:#dbe2d2;--panel-w:308px;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:#e9e5d9;-webkit-text-size-adjust:100%}
button,select,input{font:inherit;color:inherit}
button{cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent}
button:focus-visible,select:focus-visible,input:focus-visible,#scene:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
[hidden]{display:none!important}

.studio{display:grid;grid-template-columns:minmax(0,1fr) var(--panel-w);height:100%;min-height:560px;overflow:hidden}
.scene-wrap{position:relative;min-width:0;overflow:hidden;background:radial-gradient(ellipse at 50% 28%,var(--sky-a),var(--sky-b) 78%);transition:background .6s}
#scene{position:absolute;inset:0;touch-action:none}
#scene canvas{display:block;width:100%;height:100%}
body.embedded.touch #scene{touch-action:pan-y}
body.embedded.touch.expanded #scene{touch-action:none}

.scene-top{position:absolute;left:20px;right:16px;top:16px;display:flex;justify-content:space-between;align-items:flex-start;pointer-events:none;z-index:3}
.edition{font:9px/1.6 Arial;letter-spacing:2.2px;color:#3f4f42}
.edition em{font:italic 15px/1.3 Georgia;letter-spacing:0;color:var(--ink)}
.night .edition,.night .edition em{color:#efe8d6;transition:color .4s}
.top-actions{display:flex;gap:6px}
.chip{pointer-events:auto;border:1px solid #6e7b6533;background:#fbf8eedd;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-radius:999px;padding:8px 13px;font-size:12px;line-height:1;box-shadow:0 2px 10px #24361f0d;white-space:nowrap}
.chip:hover{background:#fff}
.chip[aria-pressed=true]{background:var(--olive);color:#fbf4e0;border-color:var(--olive)}
.chip.small{padding:7px 10px;font-size:11px}

#loading{position:absolute;inset:0;display:grid;place-content:center;justify-items:center;gap:14px;background:#ebe8dc;z-index:9;transition:opacity .5s}
#loading p{font:italic 22px Georgia;margin:0;color:var(--ink);text-align:center;max-width:34ch;padding:0 20px}
#loading.gone{opacity:0;pointer-events:none}
.loader{display:flex;gap:6px}.loader i{width:9px;height:9px;border-radius:50%;background:var(--olive2);animation:b 1s infinite ease-in-out}.loader i:nth-child(2){animation-delay:.15s}.loader i:nth-child(3){animation-delay:.3s}
@keyframes b{0%,100%{transform:translateY(0);opacity:.4}50%{transform:translateY(-7px);opacity:1}}

.hint{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);font:12px/1.3 Arial;color:#36483a;background:#fbf8eee6;padding:9px 14px;border-radius:999px;pointer-events:none;box-shadow:0 4px 18px #2436200f;transition:opacity .6s;white-space:nowrap;z-index:2}
.hint.gone{opacity:0}
.toast{position:absolute;left:50%;top:64px;transform:translate(-50%,-6px);font:12px/1.4 Arial;background:var(--ink);color:#f7f1e1;padding:8px 13px;border-radius:999px;opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;z-index:6;white-space:nowrap}
.toast.on{opacity:.95;transform:translate(-50%,0)}

.cam-tools{position:absolute;right:14px;bottom:20px;display:grid;gap:7px;z-index:3}
.cam-tools button{width:40px;height:40px;border-radius:50%;border:1px solid #6e7b6538;background:#fbf8eeea;font-size:20px;line-height:1;box-shadow:0 3px 12px #1a2c170f;display:grid;place-items:center;padding:0}
.cam-tools button[aria-pressed=true]{background:var(--olive);color:#fbf4e0}

.room-pop{position:absolute;left:18px;top:70px;width:min(300px,calc(100% - 90px));padding:18px 20px 20px;background:#fffaf0f2;border:1px solid #fff;border-radius:12px;box-shadow:0 14px 40px #28382026;z-index:4;animation:pop .25s ease-out}
@keyframes pop{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.room-pop button{position:absolute;right:8px;top:6px;background:none;border:0;font-size:24px;line-height:1;padding:6px}
.room-pop>span{font-size:9px;letter-spacing:1.6px;text-transform:uppercase;color:var(--gold);font-weight:700}
.room-pop h2{font:24px/1.15 Georgia;margin:8px 0 8px}
.room-pop p{font:12.5px/1.6 Arial;color:var(--ink2);margin:0}

.bubble{position:absolute;left:0;top:0;transform:translate(-50%,-100%);background:var(--ink);color:#f8f1df;font:12.5px/1.35 Arial;padding:8px 12px;border-radius:14px;max-width:220px;text-align:center;pointer-events:none;z-index:5;box-shadow:0 6px 20px #1e2a1c33}
.bubble:after{content:'';position:absolute;left:50%;bottom:-6px;transform:translateX(-50%);border:6px solid transparent;border-bottom:0;border-top-color:var(--ink)}
.bubble b{color:#d9c38f;font-weight:700;margin-right:4px}

.caption{position:absolute;left:20px;bottom:84px;max-width:min(380px,calc(100% - 92px));pointer-events:none;background:#fcf9efee;padding:15px 18px 16px;border-left:3px solid #7b8859;border-radius:0 10px 10px 0;box-shadow:0 8px 28px #2438201a;z-index:3;transition:opacity .3s}
.caption>span{font:9px Arial;letter-spacing:2px;color:#7d805b;font-weight:700}
.caption h2{font:24px/1.12 Georgia;margin:6px 0 6px}
.caption p{font:12.5px/1.5 Arial;color:var(--ink2);margin:0}
.cure{display:flex;gap:10px;align-items:center;margin-top:10px;padding-top:10px;border-top:1px solid #7b885933;font:11.5px/1.4 Arial;color:#55624e}
.clock{flex:none;width:30px;height:30px;border-radius:50%;border:2px solid var(--olive2);position:relative;background:#fffdf6}
.clock .hand{position:absolute;left:50%;bottom:50%;width:2px;background:var(--ink);transform-origin:50% 100%;border-radius:2px}
.clock .h{height:8px;margin-left:-1px}.clock .m{height:11px;margin-left:-1px;background:var(--gold)}

.follow{position:absolute;right:66px;bottom:84px;z-index:4}

.film-bar{position:absolute;left:14px;right:14px;bottom:14px;display:flex;align-items:center;gap:10px;background:#fbf8eef0;border:1px solid #fff;border-radius:999px;padding:6px 8px 6px 6px;box-shadow:0 8px 28px #24382022;z-index:4;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.film-active .cam-tools{bottom:84px}
.play{flex:none;width:44px;height:44px;border-radius:50%;border:0;background:var(--olive);color:#fbf4e0;display:grid;place-items:center;padding:0}
.i-pause{width:12px;height:14px;border-left:4px solid currentColor;border-right:4px solid currentColor}
.i-play{width:0;height:0;border-left:13px solid currentColor;border-top:8px solid transparent;border-bottom:8px solid transparent;margin-left:4px}
.i-replay:before{content:'↺';font-size:22px;line-height:1}
.track{position:relative;flex:1;height:44px;display:flex;align-items:center}
.ticks{position:absolute;left:0;right:0;top:50%;height:6px;margin-top:-3px;display:flex;border-radius:4px;overflow:hidden;pointer-events:none}
.ticks i{height:100%;border-right:2px solid #fbf8ee;background:#cfd3c1;position:relative}
.ticks i b{position:absolute;inset:0;width:0;background:var(--olive2)}
.ticks i.on{background:#bfc5ad}
#progress{position:relative;width:100%;margin:0;height:44px;background:transparent;-webkit-appearance:none;appearance:none;z-index:1}
#progress::-webkit-slider-runnable-track{height:6px;background:transparent}
#progress::-moz-range-track{height:6px;background:transparent}
#progress::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;border-radius:50%;background:#fff;border:2px solid var(--olive);margin-top:-7px;box-shadow:0 2px 8px #0003}
#progress::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:#fff;border:2px solid var(--olive)}
.elapsed{font:11px/1 Arial;color:var(--ink2);min-width:30px;text-align:right;font-variant-numeric:tabular-nums}

/* panel */
.panel{overflow:auto;padding:26px 22px 22px;background:var(--cream);border-left:1px solid var(--line);scrollbar-width:thin}
.kicker{font:9px/1.5 Arial;letter-spacing:2.2px;font-weight:700;color:#617253}
.head h1{font:35px/1.04 Georgia;margin:12px 0 10px;font-weight:400}
.head h1 em{font-style:italic}
.head p{font:12.5px/1.6 Arial;color:#5f6d5c;margin:0 0 20px}
.seg{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid #74826755;border-radius:8px;overflow:hidden;background:#fffcf4}
.seg button{background:none;border:0;border-right:1px solid #74826733;padding:11px 2px;font-size:11.5px}
.seg button:last-child{border-right:0}
.seg button[aria-pressed=true]{background:var(--olive);color:#fbf4e0}
.toggles{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin:10px 0 20px}
.toggles button{background:#fffcf4;border:1px solid #74826744;border-radius:8px;padding:9px 4px 8px;font-size:11px;display:flex;flex-direction:column;align-items:center;gap:3px}
.toggles b{font-size:15px;font-weight:400;line-height:1}
.toggles button[aria-pressed=true]{background:#ede7d4;border-color:var(--gold);color:#6f4f22;font-weight:700}
.toggles button:disabled{opacity:.4;cursor:default}
.tones .kicker{display:block;margin-bottom:8px}
.tone-row{display:grid;gap:6px}
.tone-row button{display:flex;align-items:center;gap:11px;text-align:left;background:#fffcf4;border:1px solid #74826733;border-radius:10px;padding:7px 10px 7px 7px;font-size:12.5px}
.tone-row button small{display:block;font-size:10.5px;color:var(--muted);margin-top:2px}
.tone-row button[aria-pressed=true]{border-color:var(--olive);box-shadow:inset 0 0 0 1px var(--olive);background:#fff}
.sw{flex:none;width:44px;height:30px;border-radius:6px;box-shadow:inset 0 0 0 1px #0000001a}
.sw.light{background:repeating-linear-gradient(0deg,#e5d4ae 0 9px,#d9c59c 9px 10px),#e5d4ae;background-blend-mode:multiply}
.sw.natural{background:repeating-linear-gradient(0deg,#c49b64 0 7px,#a98251 7px 8px)}
.sw.walnut{background:repeating-linear-gradient(0deg,#5c3d2b 0 5px,#3f2a1e 5px 6px)}
.watch{margin-top:18px;width:100%;border:0;background:var(--olive);color:#fbf4e0;padding:14px 14px;border-radius:10px;display:flex;align-items:center;gap:12px;text-align:left;font-size:14px;box-shadow:0 6px 18px #304a2f2e}
.watch:hover{background:#334836}
.watch small{display:block;font-size:10.5px;opacity:.75;margin-top:3px}
.watch .pl{flex:none;width:34px;height:34px;border-radius:50%;background:#fbf4e0;color:var(--olive);display:grid;place-items:center;font-size:12px;padding-left:2px}
.method{display:flex;align-items:center;gap:6px;margin:10px 0 18px;font-size:11px;color:var(--muted)}
.method span{margin-right:auto}
.method button{border:1px solid #74826744;background:#fffcf4;border-radius:999px;padding:6px 11px;font-size:11px}
.method button[aria-pressed=true]{background:#ede7d4;border-color:var(--gold);color:#6f4f22;font-weight:700}
.room-select{display:block;font-size:11px;color:#5c6b55}
.room-select select{display:block;width:100%;background:#fffcf4;border:1px solid #7c886c55;border-radius:8px;color:#344333;padding:10px;margin-top:6px;font-size:12px}
.material-key{display:grid;grid-template-columns:1fr 1fr;gap:8px;font-size:10.5px;color:#6b755e;border-top:1px solid #83907038;padding-top:16px;margin-top:18px}
.material-key span{display:flex;align-items:center;gap:7px}.material-key i{width:12px;height:12px;border-radius:3px}
.k-oak{background:#c49b64}.k-carpet{background:#d9d2c3}.k-tile{background:#f1ede4;box-shadow:inset 0 0 0 1px #b4ad97}.k-vinyl{background:#a9a08e}
.disclaimer{font:10px/1.55 Arial;color:#828872;margin:14px 0 0}

.film-head h2{font:23px/1.15 Georgia;margin:8px 0 16px;font-weight:400}
.chapters{list-style:none;margin:0;padding:0;display:grid;gap:3px;counter-reset:c}
.chapters button{width:100%;display:flex;align-items:center;gap:10px;border:0;background:none;border-radius:8px;padding:8px 10px;text-align:left;font-size:12.5px;position:relative;overflow:hidden}
.chapters button:hover{background:#ece6d4}
.chapters button .n{font:10px Arial;color:var(--muted);width:16px;font-variant-numeric:tabular-nums}
.chapters button .bar{position:absolute;left:0;bottom:0;height:2px;background:var(--olive2);width:0}
.chapters button.done{color:#76806c}
.chapters button[aria-current=step]{background:#fffcf4;box-shadow:inset 0 0 0 1px #74826744;font-weight:700}
.method.compact{margin:14px 0 0}
.film-actions{display:grid;grid-template-columns:auto 1fr;gap:6px;margin-top:14px}
.film-actions button{border-radius:8px;padding:11px 12px;font-size:12px}
.ghost{border:1px solid #74826755;background:#fffcf4}
.solid{border:0;background:var(--olive);color:#fbf4e0}
.film-foot{font:11px/1.5 Arial;color:#7a8270;margin:14px 0 0}
.nojs{padding:30px;font:16px Georgia}

/* phones */
@media (max-width:760px){
  :root{--panel-w:100%}
  .studio{grid-template-columns:1fr;grid-template-rows:minmax(320px,58%) 1fr;min-height:620px}
  .scene-top{left:13px;right:10px;top:11px}
  .edition{font-size:8px;letter-spacing:1.6px}.edition em{font-size:13px}
  .chip{padding:7px 10px;font-size:11px}
  #expand .lbl{display:none}
  .panel{border-left:0;border-top:1px solid var(--line);padding:14px 14px 18px}
  .head,.material-key,.disclaimer{display:none}
  .toggles{margin:8px 0 12px}
  .tone-row{grid-template-columns:repeat(3,1fr)}
  .tone-row button{flex-direction:column;gap:6px;padding:7px 4px 8px;text-align:center;font-size:11px}
  .tone-row button small{display:none}
  .sw{width:100%;height:24px}
  .watch{margin-top:12px;padding:12px}
  .method{margin:8px 0 12px}
  .cam-tools{right:9px;bottom:12px;gap:5px}
  .cam-tools button{width:36px;height:36px;font-size:18px}
  .hint{bottom:14px;font-size:11px;padding:8px 12px;max-width:calc(100% - 70px);white-space:normal;text-align:center}
  .room-pop{top:52px;left:10px;width:calc(100% - 70px);padding:14px 16px}
  .room-pop h2{font-size:20px}.room-pop p{font-size:12px}
  .caption{left:10px;right:10px;top:50px;bottom:auto;max-width:none;padding:10px 13px 11px;border-radius:0 10px 10px 0}
  .caption h2{font-size:18px;margin:4px 0}.caption p{font-size:11.5px}
  .cure{margin-top:7px;padding-top:7px;font-size:10.5px}
  .film-bar{left:8px;right:8px;bottom:8px;gap:6px}
  .film-active .cam-tools{bottom:70px}
  .follow{right:auto;left:10px;bottom:70px}
  .film-head h2{font-size:18px;margin:4px 0 8px}
  .chapters{grid-template-columns:repeat(3,1fr);gap:4px}
  .chapters button{flex-direction:column;align-items:flex-start;gap:1px;padding:7px 8px;font-size:11px;background:#fffcf4;box-shadow:inset 0 0 0 1px #74826726}
  .film-foot{display:none}
}
@media (max-width:760px) and (max-height:560px){.studio{grid-template-rows:100% 0}.panel{display:none}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* v3: standalone "Watch the install" page */
.back{text-decoration:none;color:var(--ink);margin-right:10px;align-self:center}
.scene-top .edition{margin-right:auto}
.tour-btn{margin-top:8px;width:100%;border:1px solid #74826755;background:#fffcf4;color:var(--ink);padding:12px 14px;border-radius:10px;display:flex;align-items:center;gap:12px;text-align:left;font-size:14px}
.tour-btn>span:first-child{flex:none;width:34px;height:34px;border-radius:50%;background:#efe9d8;display:grid;place-items:center;font-size:17px}
.tour-btn small{display:block;font-size:10.5px;opacity:.7;margin-top:3px}
.tour-btn:hover{background:#f6f1e3}
#tour-stop{left:50%;right:auto;transform:translateX(-50%);bottom:22px}
.film-actions a{border-radius:8px;padding:11px 12px;font-size:12px;text-align:center;text-decoration:none;color:var(--ink);grid-column:1/-1}
.end-card{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) scale(.96);z-index:5;width:min(320px,calc(100% - 32px));padding:20px 18px 16px;border-radius:16px;background:#fbf8eef2;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:0 18px 50px #24361f33;text-align:center;opacity:0;pointer-events:none;transition:opacity .4s,transform .4s}
.end-card p{margin:0 0 12px;font:italic 19px/1.3 Georgia;color:var(--ink)}
.end-card button,.end-card a{display:block;width:100%;border-radius:10px;padding:13px 12px;font-size:14px;text-decoration:none;color:var(--ink);margin-top:8px;box-sizing:border-box}
.end-card .solid{color:#fbf4e0}
.film-active.film-ended .end-card{opacity:1;pointer-events:auto;transform:translate(-50%,-50%)}
.touring .hint{display:none}
.toast{max-width:calc(100% - 40px);white-space:normal;text-align:center}
@media (max-width:760px){
  .back{padding:9px 12px;font-size:12px}
  .cam-tools button{width:46px;height:46px;font-size:20px}
  .film-bar .play{width:52px;height:52px}
  #tour-stop{bottom:16px;padding:10px 16px;font-size:13px}
}
@media (max-width:760px){
  .studio{height:100svh;grid-template-rows:minmax(320px,62%) 1fr}
  .studio.film-active,.studio.touring{grid-template-rows:minmax(320px,78%) 1fr}
  .panel{overflow-y:auto;-webkit-overflow-scrolling:touch}
}