:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#171717;background:#f3f1ec;font-synthesis:none}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:linear-gradient(#f7f5f1,#efede7);color:#171717}button,input,select{font:inherit}.topbar{display:flex;justify-content:space-between;gap:24px;align-items:flex-end;padding:34px clamp(20px,4vw,64px) 26px;background:#111;color:#fff}.topbar h1{margin:5px 0 6px;font-size:clamp(30px,4vw,48px);line-height:1}.topbar p{margin:0;color:#bcbcbc}.eyebrow{font-size:11px;letter-spacing:.18em;color:#d4b889;font-weight:800}.top-meta{display:flex;gap:9px;flex-wrap:wrap;justify-content:flex-end}.top-meta span{border:1px solid #3a3a3a;border-radius:999px;padding:8px 12px;color:#dedede;font-size:13px;white-space:nowrap}.app-shell{max-width:1440px;margin:0 auto;padding:24px clamp(14px,3vw,38px) 72px;display:grid;gap:18px}.panel{background:#fff;border:1px solid #ddd9d0;border-radius:18px;padding:clamp(18px,3vw,30px);box-shadow:0 12px 30px rgba(0,0,0,.04)}.section-title{display:flex;align-items:flex-start;gap:13px;margin-bottom:22px}.section-title>span{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:#171717;color:#fff;font-size:13px;font-weight:800;flex:0 0 auto}.section-title h2{margin:0 0 3px;font-size:21px}.section-title p{margin:0;color:#72706b;font-size:14px}.dropzone{display:flex;min-height:118px;border:1.5px dashed #aaa59b;border-radius:15px;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;background:#faf9f6;transition:.2s}.dropzone:hover,.dropzone.dragging{border-color:#171717;background:#f1ede5}.dropzone strong{font-size:17px}.dropzone span{color:#76716a;font-size:13px}.form-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:16px}.form-grid label,.visual-controls label{display:flex;flex-direction:column;gap:6px;color:#5f5a53;font-size:12px;font-weight:700}.form-grid input,.form-grid select,.visual-controls select{width:100%;border:1px solid #d3cec4;border-radius:10px;background:#fff;color:#171717;padding:10px 11px;min-height:42px}.crop-shell{margin-top:20px}.crop-stage{background:#1a1a1a;border-radius:14px;display:grid;place-items:center;min-height:280px;overflow:hidden;padding:14px}.crop-stage canvas{display:block;max-width:100%;max-height:570px}.slider-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:11px 16px;margin:17px 0}.slider-grid label{display:grid;grid-template-columns:95px 1fr;align-items:center;font-size:12px;font-weight:700;color:#5f5a53}.slider-grid input{width:100%}button{border:1px solid #cfc9bf;background:#fff;color:#171717;border-radius:10px;padding:10px 14px;font-weight:750;cursor:pointer;transition:transform .12s,background .12s,border-color .12s}button:hover{border-color:#9a948a;background:#faf8f4}button:active{transform:translateY(1px)}button.primary{background:#171717;color:#fff;border-color:#171717;padding:12px 18px}button.primary:hover{background:#2a2a2a}.candidate-groups{display:grid;gap:25px}.candidate-group-title{font-size:13px;font-weight:850;letter-spacing:.03em;margin-bottom:10px}.candidate-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}.candidate-card{padding:9px;background:#f7f5f1;border:2px solid transparent;display:flex;flex-direction:column;gap:8px;align-items:center;min-width:0}.candidate-card canvas{display:block;width:100%!important;height:auto!important;max-height:220px;object-fit:contain;image-rendering:pixelated;background:#ddd}.candidate-card span{font-size:11px;color:#5c5852;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}.candidate-card.selected{border-color:#171717;background:#fff;box-shadow:0 0 0 2px #fff inset}.refine-grid{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:18px;align-items:start}.mosaic-viewer{background:#222;border-radius:14px;display:grid;place-items:center;overflow:auto;min-height:420px;max-height:78vh;padding:16px}.mosaic-viewer canvas{display:block;max-width:none;image-rendering:pixelated}.refine-tools{display:grid;gap:11px;position:sticky;top:14px}.selected-method{padding:11px;border-radius:10px;background:#f1eee8;font-size:12px;font-weight:800}.toggle{display:flex!important;flex-direction:row!important;align-items:center!important;gap:8px!important;min-height:38px}.toggle input{width:17px;height:17px}.toggle.inline{justify-content:center;border:1px solid #d3cec4;border-radius:10px;padding:4px 10px}.palette-stats{border-top:1px solid #e6e2da;border-bottom:1px solid #e6e2da;padding:7px 0}.palette-row{display:grid;grid-template-columns:16px 1fr auto auto;gap:7px;align-items:center;padding:5px 0;font-size:11px}.palette-row .swatch{width:14px;height:14px;border-radius:3px;background:var(--swatch);border:1px solid rgba(0,0,0,.2)}.palette-row small{color:#8a857d;min-width:42px;text-align:right}.visual-controls{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-bottom:15px}.room-stage{height:min(66vw,650px);min-height:390px;border-radius:16px;position:relative;overflow:hidden;isolation:isolate;border:1px solid #d0cbc0}.room-stage:before,.room-stage:after,.room-ceiling,.room-floor,.furniture{content:"";position:absolute}.room-ceiling{inset:0 0 auto;height:9%;background:linear-gradient(#ede9e1,#d9d2c7);z-index:-1}.room-floor{inset:auto 0 0;height:27%;background:linear-gradient(160deg,#8e765d,#624f3d);z-index:-1}.room-stage:before{inset:9% 0 27%;background:#e6e0d5;z-index:-2}.room-stage:after{width:38%;height:25%;left:8%;bottom:19%;border-radius:18px 18px 0 0;background:#b6aa9a;box-shadow:18px 16px 0 rgba(0,0,0,.08);z-index:-1}.room-gallery:before{background:#f3f1ec}.room-gallery .room-floor{background:linear-gradient(165deg,#c5b49b,#958169)}.room-gallery:after{left:auto;right:8%;width:30%;height:15%;background:#2f302f;border-radius:3px}.room-living:before{background:#d9d3c9}.room-living .room-floor{background:linear-gradient(165deg,#aa8a66,#70583f)}.room-living:after{width:45%;height:22%;left:5%;background:#80786f}.furniture-left{left:7%;bottom:20%;width:21%;height:10%;background:#6f655b;border-radius:8px 8px 0 0;z-index:-1}.furniture-right{right:8%;bottom:25%;width:9%;height:21%;background:linear-gradient(#c7b289,#9c845c);border-radius:50% 50% 4px 4px;z-index:-1}.room-gallery .furniture-left{display:none}.art-wrap{--art-width:26%;--led-rgb:255,255,245;position:absolute;width:var(--art-width);left:50%;top:43%;transform:translate(-50%,-50%);padding:0;background:transparent;transition:.2s;filter:drop-shadow(0 8px 9px rgba(0,0,0,.16))}.art-wrap img{display:block;width:100%;height:auto;image-rendering:pixelated}.frame-black{padding:2.8%;background:#111}.frame-white{padding:2.8%;background:#f6f4ed}.frame-walnut{padding:3.2%;background:linear-gradient(90deg,#5b321c,#805036 45%,#4b2918)}.frame-maple{padding:3.2%;background:linear-gradient(90deg,#cba777,#e2c79c 52%,#b98d5c)}.frame-aluminum{padding:2.5%;background:linear-gradient(90deg,#8f9497,#d9dcdd 40%,#7c8083)}.led-on{filter:drop-shadow(0 0 9px rgba(var(--led-rgb),.98)) drop-shadow(0 0 25px rgba(var(--led-rgb),.85)) drop-shadow(0 8px 9px rgba(0,0,0,.2))}.room-caption{display:flex;justify-content:space-between;color:#777168;font-size:11px;margin-top:7px}.developer-panel{border-color:#b8a27d;background:linear-gradient(180deg,#fff,#fbf7ee)}.developer-grid{grid-template-columns:repeat(5,minmax(0,1fr));align-items:end}.dev-note{font-size:11px;color:#7a7266;margin:12px 0 0}.dev-note code{background:#eee9df;border-radius:4px;padding:2px 4px}@media(max-width:900px){.topbar{align-items:flex-start;flex-direction:column}.top-meta{justify-content:flex-start}.form-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.slider-grid{grid-template-columns:1fr}.refine-grid{grid-template-columns:1fr}.refine-tools{position:static;grid-template-columns:repeat(2,minmax(0,1fr))}.palette-stats,.selected-method{grid-column:1/-1}.visual-controls{grid-template-columns:repeat(2,minmax(0,1fr))}.developer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.room-stage{height:64vh;min-height:420px}}@media(max-width:560px){.topbar{padding:24px 17px 20px}.app-shell{padding:14px 10px 55px}.panel{border-radius:14px;padding:16px}.form-grid,.visual-controls,.developer-grid{grid-template-columns:1fr 1fr}.candidate-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:7px}.candidate-card{padding:6px}.refine-tools{grid-template-columns:1fr}.palette-stats,.selected-method{grid-column:auto}.room-stage{height:56vh;min-height:360px}.art-wrap{max-width:68%}.section-title h2{font-size:18px}}