:root{--bg:#f4efe7;--card:rgba(255, 255, 255, 0.9);--ink:#5d4a3c;--muted:#74685b;--line:#e1d4c3;--accent:#6f5338;--shadow:rgba(30, 16, 8, 0.3)}body,html{margin:0;width:100%;height:100%;overflow:hidden;background:linear-gradient(180deg,#f5f3ef 0,#e8dfd6 100%);color:var(--ink);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}#viewer{position:fixed;inset:0;background:radial-gradient(circle at 28% 18%,rgba(255,220,172,.44) 0,transparent 30%),radial-gradient(circle at 76% 32%,rgba(180,204,255,.22) 0,transparent 28%),radial-gradient(circle at 50% 72%,rgba(111,83,56,.16) 0,transparent 42%),linear-gradient(180deg,#f7f3ed 0,#e8dfd6 58%,#d8c8b8 100%)}#viewer::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(circle at 50% 42%,transparent 0,transparent 42%,rgba(48,31,20,.3) 100%),linear-gradient(120deg,rgba(255,255,255,.1),transparent 38%,rgba(67,42,25,.24));mix-blend-mode:multiply;z-index:2}#viewer,#viewer canvas{cursor:grab}#viewer canvas:active,#viewer:active{cursor:grabbing}#toolbar{position:fixed;z-index:30;top:12px;left:12px;display:flex;flex-wrap:wrap;gap:6px;padding:7px;background:var(--card);border:1px solid var(--line);border-radius:10px;box-shadow:0 18px 42px var(--shadow),0 4px 12px rgba(30,16,8,.22);backdrop-filter:blur(6px)}button{appearance:none;border:1px solid #b9a292;background:#d7cac1;color:#fff;border-radius:6px;padding:5px 9px;font-size:11px;cursor:pointer;transition:background .18s,transform .18s}button:hover{background:#9c7b63;transform:translateY(-1px)}button.active{background:var(--accent);color:#fff;border-color:var(--accent)}select{appearance:none;border:1px solid #b9a292;background:linear-gradient(45deg,transparent 50%,#fff 50%) calc(100% - 13px) 50%/5px 5px no-repeat,linear-gradient(135deg,#fff 50%,transparent 50%) calc(100% - 8px) 50%/5px 5px no-repeat,#d7cac1;color:#fff;border-radius:6px;padding:5px 24px 5px 9px;font-size:11px;line-height:1.2;cursor:pointer;transition:background-color .18s,transform .18s;max-width:180px}select:focus,select:hover{background-color:#9c7b63;transform:translateY(-1px);outline:0}#help{position:fixed;z-index:25;padding:6px 8px;font-size:10.5px;line-height:1.28;color:var(--ink);background:rgba(255,255,255,.3);border:1px solid rgba(0,0,0,.2);border-radius:10px;backdrop-filter:blur(8px);box-shadow:0 18px 46px rgba(30,16,8,.24),0 6px 16px rgba(0,0,0,.18)}#help{right:12px;top:12px;max-width:420px;pointer-events:none}#help,#toolbar{position:fixed;z-index:25;padding:6px 8px;font-size:10.5px;line-height:1.28;color:var(--ink);background:rgba(255,255,255,.3);border:1px solid rgba(0,0,0,.2);border-radius:10px;backdrop-filter:blur(8px);box-shadow:0 18px 46px rgba(30,16,8,.24),0 6px 16px rgba(0,0,0,.18)}body.ui-idle #help,body.ui-idle #toolbar{opacity:.24}body.ui-idle #toolbar{position:fixed;z-index:30;top:12px;left:12px;display:flex;flex-wrap:wrap;gap:6px;padding:7px;background:var(--card);border:1px solid var(--line);border-radius:10px;box-shadow:0 18px 42px var(--shadow),0 4px 12px rgba(30,16,8,.22);backdrop-filter:blur(6px)}body.ui-idle #help{transform:translateY(-4px)}body.ui-active #help,body.ui-active #toolbar,body.ui-idle #help:hover,body.ui-idle #toolbar:hover{opacity:1;transform:translateY(0)}#help.hidden{display:none}#modelInfo{position:fixed;z-index:35;bottom:24px;left:24px;width:min(92vw,1100px);max-height:24vh;overflow:hidden;pointer-events:none;white-space:pre-wrap;text-align:left;background:0 0;border:none;box-shadow:none;backdrop-filter:none;color:rgba(93,74,60,.45);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:clamp(12px, 2.4vw, 24px);font-weight:500;line-height:1.2;letter-spacing:-.02em;text-shadow:none}#toolbar{z-index:45;display:flex;flex-wrap:wrap;gap:6px;align-items:center}#toolbar button,#toolbar select{pointer-events:auto;min-height:27px;line-height:1.2;color:#fff}#toolbar button{background:#d7cac1;border:1px solid #b9a292;border-radius:6px;padding:5px 9px;font-size:11px}#toolbar button:hover,#toolbar select:focus,#toolbar select:hover{background-color:#9c7b63}#toolbar button.active{background:var(--accent);border-color:var(--accent)}#watermark{position:fixed;right:64px;bottom:24px;z-index:40;display:inline-block;opacity:.1;transition:opacity .25s,transform .25s;pointer-events:auto}#watermark img{display:block;height:72px;width:auto}#watermark:hover{opacity:1;transform:translateY(-2px)}#toolbar,body.ui-active #toolbar,body.ui-idle #toolbar{position:fixed;z-index:45;top:0;left:0;right:0;width:100%;box-sizing:border-box;display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:6px;align-items:stretch;padding:8px 12px;background:0 0;border:0;border-radius:0;box-shadow:none;backdrop-filter:none}#toolbar button,#toolbar select{width:100%;min-width:0;min-height:34px;box-sizing:border-box;display:inline-flex;align-items:center;justify-content:center;padding:7px 10px;font-size:11px;line-height:1.2;text-align:center;background-color:rgba(156,123,99,.58);border:1px solid rgba(255,255,255,.42);border-radius:7px;color:#fff;box-shadow:none;backdrop-filter:blur(4px)}#toolbar select{max-width:none;appearance:none;background:linear-gradient(45deg,transparent 50%,rgba(255,255,255,.92) 50%) calc(100% - 14px) 50%/5px 5px no-repeat,linear-gradient(135deg,rgba(255,255,255,.92) 50%,transparent 50%) calc(100% - 9px) 50%/5px 5px no-repeat,rgba(156,123,99,.58);padding-right:26px}#toolbar button:hover,#toolbar select:focus,#toolbar select:hover{background-color:rgba(156,123,99,.78);transform:translateY(-1px)}#toolbar button.active{background:rgba(111,83,56,.78);border-color:rgba(255,255,255,.55)}#help,body.ui-active #help,body.ui-idle #help{left:12px;right:12px;top:52px;max-width:none;width:auto;box-sizing:border-box}@media (max-width:760px){#toolbar,body.ui-active #toolbar,body.ui-idle #toolbar{grid-template-columns:repeat(2,minmax(0,1fr))}#help,body.ui-active #help,body.ui-idle #help{top:134px}}#toolbar{position:fixed!important;top:0!important;left:0!important;right:0!important;width:100vw!important;box-sizing:border-box!important;display:flex!important;flex-wrap:nowrap!important;gap:0!important;padding:0!important;background:0 0!important;border:none!important;border-radius:0!important;box-shadow:none!important}#toolbar button,#toolbar select{flex:1 1 0!important;width:auto!important;min-width:0!important;height:38px!important;border-radius:0!important}#help{top:42px!important;left:0!important;right:0!important;max-width:none!important;width:auto!important}#help,body.ui-active #help,body.ui-idle #help{font-size:13.5px;line-height:1.5;padding:14px 18px;max-width:600px;max-height:calc(100dvh - 76px);overflow:auto;overscroll-behavior:contain;pointer-events:auto;background:rgba(252,250,246,.96);opacity:1;transform:none}#help ol{margin:8px 0 12px;padding-left:23px}#help li{margin:0 0 9px}#help p{margin:10px 0}#help strong{font-weight:600}@media (max-width:760px){#help,body.ui-active #help,body.ui-idle #help{max-height:calc(100dvh - 154px);padding:12px 14px}}#viewer-version{position:fixed;top:44px;right:12px;z-index:12;font:10px Arial;color:#8b8175;pointer-events:none}#viewer-lighting[hidden]{display:none}#viewer-lighting{position:fixed;right:12px;top:62px;z-index:40;width:320px;max-width:calc(100vw - 24px);max-height:calc(100dvh - 82px);overflow:auto;overscroll-behavior:contain;box-sizing:border-box;padding:16px 18px;background:rgba(252,250,246,.96);color:var(--ink);border:1px solid var(--line);border-radius:10px;backdrop-filter:blur(8px);box-shadow:0 18px 46px rgba(30,16,8,.24),0 6px 16px rgba(0,0,0,.18);font:13.5px/1.5 system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}#viewer-lighting h4{margin:0 0 14px;padding-bottom:10px;border-bottom:1px solid var(--line);font-size:15px;font-weight:600}#viewer-lighting>label{display:grid;grid-template-columns:1fr auto;gap:5px 12px;align-items:center;margin:0 0 14px}#viewer-lighting input[type=range]{grid-column:1/-1;grid-row:2;width:100%;margin:2px 0 0;accent-color:var(--accent);cursor:pointer}#viewer-lighting output{grid-column:2;grid-row:1;color:var(--muted);font-variant-numeric:tabular-nums;font-size:12px}#viewer-lighting select{grid-column:1/-1;width:100%;max-width:none;box-sizing:border-box;height:34px;font:inherit;border:0;border-radius:5px}#viewer-lighting input[type=color]{grid-column:1;grid-row:2;width:100%;height:32px;padding:3px;box-sizing:border-box;border:1px solid var(--line);border-radius:5px;background:var(--bg);cursor:pointer}#viewer-lighting input[type=color]::-webkit-color-swatch-wrapper{padding:0}#viewer-lighting input[type=color]::-webkit-color-swatch{border:0;border-radius:3px}#viewer-lighting .lighting-actions{display:flex;gap:8px;padding-top:12px;border-top:1px solid var(--line)}#viewer-lighting button{flex:1;min-height:34px;font:inherit;border-radius:5px}#viewer-lighting :is(button,select,input):focus-visible{outline:2px solid var(--accent);outline-offset:2px}