@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;500&display=swap');
:root{font-family:system-ui,-apple-system,'PingFang SC',sans-serif;color:#343b2f;background:#eeeee5;font-size:13px;--green:#657447;--line:#e2e3d7;--paper:#faf9f3}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a{touch-action:manipulation}button{border:1px solid var(--line);border-radius:8px;padding:9px 12px;background:#fffef9;color:inherit;cursor:pointer;transition:.15s}button:hover{border-color:#8e9b73;background:#f0f3e7}button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid #718150;outline-offset:2px}button:disabled{opacity:.4;cursor:not-allowed}.primary,button.active{background:var(--green);color:white;border-color:var(--green)}button.danger{color:#a75f4b}.muted,small{color:#92977e;font-size:11px}input,select{border:1px solid #dcdfd0;border-radius:6px;padding:8px;background:#fffefb;color:#3f4937;width:100%;min-width:0}input[type=color]{height:35px;padding:3px}input[type=range]{padding:0}#studio{height:100dvh;min-height:650px;display:flex;flex-direction:column}header{height:76px;flex-shrink:0;display:flex;align-items:center;gap:32px;padding:0 28px;background:var(--paper);border-bottom:1px solid var(--line)}.brand{text-decoration:none;color:#34412d;font-family:'Noto Serif SC',serif;font-size:27px;letter-spacing:6px;display:flex;align-items:center;gap:18px;white-space:nowrap}.brand span{font:9px system-ui;letter-spacing:2px;color:#929b81}.project{border-left:1px solid var(--line);padding-left:26px;display:grid;gap:3px}.project input{border:0;padding:0;background:none;font-weight:600;width:200px}.project span{font-size:10px;color:#8d957d}.header-actions{margin-left:auto;display:flex;gap:8px}#steps{display:flex;justify-content:center;gap:0;background:var(--paper);border-bottom:1px solid var(--line);padding:14px 16px}#steps button{border:0;background:none;border-radius:0;min-width:160px;color:#8f9683;position:relative;text-align:left;padding:3px 26px}#steps button.active{color:#465832}#steps button.active:after{content:'';position:absolute;height:3px;bottom:-14px;left:20px;right:20px;background:#697c48}#steps b{font-size:11px;margin-right:8px;font-weight:500}#steps span{display:block;font-size:10px;margin:5px 0 0 25px;color:#a2a792}.workspace{display:grid;grid-template-columns:236px minmax(200px,1fr) 256px;min-height:0;flex:1}.left-panel,.right-panel{background:var(--paper);overflow:auto;padding:22px 18px}.left-panel{border-right:1px solid var(--line)}.right-panel{border-left:1px solid var(--line)}h2{font-family:'Noto Serif SC',serif;font-size:21px;font-weight:500;margin:0 0 9px}h3{font-size:12px;letter-spacing:.5px;margin:22px 0 12px}p{line-height:1.8;color:#858e78;font-size:12px;margin:6px 0 14px}.eyebrow{font-size:9px;letter-spacing:2px;color:#9a9e87;margin-bottom:10px}.divider{border-top:1px solid var(--line);margin:20px 0}.stack{display:grid;gap:8px}.row{display:flex;gap:8px;align-items:center}.row>*{flex:1;min-width:0}label{display:block;color:#747e67;font-size:11px;margin:12px 0 5px}label input,label select{margin-top:6px}.template{width:100%;padding:12px;text-align:left;border-radius:10px;display:grid;gap:7px}.template .mini-plan{height:66px;width:100%}.template small{font-size:10px}.template strong{font-size:12px}.upload-box{border:1px dashed #aeb69a;border-radius:9px;padding:18px 8px;text-align:center;width:100%;background:#f2f4e9}.upload-box span{display:block;font-size:11px;color:#8d977b;margin-top:6px}.room-list{display:grid;gap:4px;margin-top:10px}.room-row{display:flex;align-items:center;text-align:left;border:0;background:transparent;padding:8px;border-radius:5px;font-size:12px}.room-row i{width:8px;height:8px;border-radius:2px;margin-right:8px}.room-row small{margin-left:auto}.room-row.active{background:#e9eedc;color:#465632}#canvas-area{position:relative;min-width:0;overflow:hidden;background:#f0f0e7}#plan-canvas,#scene-host{width:100%;height:100%;display:block;touch-action:none}#scene-host[hidden],#plan-canvas[hidden]{display:none}#scene-host canvas{display:block}#plan-toolbar{position:absolute;top:16px;left:16px;right:16px;display:flex;align-items:center;gap:8px;flex-wrap:wrap;z-index:2}#plan-toolbar[hidden]{display:none}.segmented{background:#fffdf7e8;padding:4px;border:1px solid #e3e4d7;border-radius:10px;display:flex;gap:2px;box-shadow:0 3px 10px #38432708}.segmented button{border:0;background:transparent;font-size:11px;padding:8px}.segmented button.active{background:#68784a;color:#fff}#fit-plan{font-size:10px;padding:8px;background:#fffdf4d9}#view-toolbar{position:absolute;top:16px;left:16px;right:16px;z-index:2;display:flex;gap:8px;align-items:center}#view-toolbar[hidden]{display:none}#view-toolbar>button{font-size:11px;background:#fffdf6e6}#canvas-hint{position:absolute;bottom:17px;left:18px;font-size:10px;color:#71805b;background:#fffef4df;border:1px solid #e5e7d7;padding:9px 13px;border-radius:20px;pointer-events:none;max-width:90%}footer{height:66px;flex-shrink:0;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 28px;background:var(--paper);gap:12px}footer>div{display:flex;align-items:center;gap:18px}#plan-summary{font-size:12px;font-weight:500}#validation-summary{font-size:10px;color:#8a9479;max-width:480px}#validation-summary.error{color:#aa5d43}.check-list{padding:0;list-style:none;font-size:12px;color:#65744c;line-height:2.2}.warning{background:#f5e9db;border-radius:8px;padding:10px;color:#946c46;font-size:11px;line-height:1.7}.swatch-row{display:flex;gap:8px;flex-wrap:wrap}.swatch{width:27px;height:27px;min-width:0;flex:none;border-radius:50%;padding:0;border:3px solid white;box-shadow:0 0 0 1px #d9dccd}.material-card{display:flex;align-items:center;gap:9px;padding:8px}.material-card i{width:32px;height:32px;border-radius:5px;display:block}.material-card i.oak{background:repeating-linear-gradient(88deg,#c4a77d,#d0b58e 4px,#ba9b6e 5px,#d4bd9b 9px)}.material-card i.tile{background:linear-gradient(90deg,transparent 95%,#b4b0a5 95%),linear-gradient(transparent 95%,#b4b0a5 95%),#d4d0c6;background-size:16px 16px}.catalog{display:grid;grid-template-columns:1fr 1fr;gap:8px}.asset-card{text-align:left;position:relative;padding:6px;font-size:10px;border-radius:8px;overflow:hidden}.asset-card img{width:100%;height:74px;object-fit:contain;display:block;background:#eeeee5;border-radius:5px}.asset-card .placeholder{height:74px;display:flex;align-items:center;justify-content:center;background:#eeeee5;font-size:27px;color:#9aa687;border-radius:5px}.asset-card strong{display:block;font-size:10px;font-weight:500;margin:7px 0 4px}.asset-card small{font-size:9px}#placement-bar{position:absolute;top:73px;left:18px;right:18px;background:#657447ee;color:white;padding:8px 12px;border-radius:8px;z-index:4;display:flex;justify-content:space-between;align-items:center;font-size:12px}#placement-bar[hidden]{display:none}#placement-bar button{padding:5px 10px;font-size:12px;color:#30352b;background:#fffdf5;min-height:32px}#busy{position:absolute;inset:0;background:#f5f4ebeb;z-index:10;display:flex;align-items:center;justify-content:center;flex-direction:column}#busy[hidden]{display:none}#busy>span{width:30px;height:30px;border-radius:50%;border:2px solid #ccd0bc;border-top-color:#657447;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}#toast{position:fixed;bottom:82px;left:50%;transform:translateX(-50%);padding:12px 22px;border-radius:20px;background:#48563b;color:white;font-size:12px;opacity:0;pointer-events:none;z-index:20;max-width:90%;transition:.2s}#toast.show{opacity:1}#walk-controls{position:absolute;right:16px;bottom:48px;z-index:3;text-align:center}#walk-controls[hidden]{display:none}#walk-controls span{font-size:10px;color:#778264;display:block;margin-bottom:6px}#walk-controls button{padding:7px 13px;margin:2px;background:#fffdf2da}#walk-stop{width:100%}.item-list button{text-align:left;width:100%;font-size:11px;margin:2px 0}.vertex-row{display:grid;grid-template-columns:20px 1fr 1fr 25px;gap:4px;align-items:center;margin:5px 0}.vertex-row input{padding:5px}.vertex-row button{padding:5px}.note{font-size:10px;color:#8f977f;line-height:1.7}#inspector .subtitle{font-size:10px;letter-spacing:1px;color:#9ca48c;margin-bottom:15px}[hidden]{display:none!important}@media(max-width:1100px){.workspace{grid-template-columns:200px minmax(200px,1fr) 220px}header{gap:16px;padding:0 18px}.brand span{display:none}#steps button{min-width:120px;padding:3px 14px}.header-actions button{font-size:11px;padding:8px}.project input{width:140px}}@media(max-width:760px){#studio{height:auto;min-height:100dvh}header{height:auto;padding:14px;flex-wrap:wrap;gap:12px}.brand{font-size:23px}.project{padding-left:12px}.header-actions{width:100%;margin:0;justify-content:space-between}.header-actions button{padding:7px}#steps{justify-content:start;overflow:auto;padding:12px 5px}#steps button{min-width:105px;font-size:11px;padding:3px 9px}#steps span{font-size:9px}.workspace{display:flex;flex-wrap:wrap}.left-panel{width:100%;max-height:270px;order:1;padding:15px;border-bottom:1px solid var(--line)}.right-panel{width:100%;order:3;padding:18px}.left-panel .stack.templates{grid-template-columns:repeat(3,1fr)}#canvas-area{width:100%;height:560px;order:2}#plan-toolbar{top:8px;left:8px;right:8px}#plan-toolbar .segmented{flex-wrap:wrap}.segmented button{padding:7px;font-size:10px}.catalog{grid-template-columns:repeat(4,1fr)}footer{position:sticky;bottom:0;z-index:8;height:auto;padding:12px;gap:8px}footer>div{gap:8px}footer>div:first-child{display:grid}#validation-summary{max-width:170px;font-size:9px}footer button{font-size:11px;padding:8px}h2{font-size:18px}}