:root{color-scheme:light;font-family:Inter,Arial,sans-serif;background:#f3f1eb;color:#343832;font-synthesis:none;--line:#c7cbbf;--muted:#58614f;--accent:#455b39;--surface:#faf9f4}
*{box-sizing:border-box}body{margin:0}button,input,select,summary{-webkit-tap-highlight-color:transparent}button,select,input{font:inherit}[hidden]{display:none!important}
header,main{max-width:1740px;margin:auto}header{padding:24px 28px 20px;display:flex;align-items:flex-end;justify-content:space-between;gap:20px}.eyebrow{margin:0 0 7px;font-size:10px;font-weight:700;letter-spacing:.18em;color:var(--muted)}h1{font:400 30px/1.2 Georgia,serif;margin:0}h1 span{color:#62695d}.intro{font-size:13px;margin:0 0 3px;color:var(--muted)}main{padding:0 28px 24px}
button,select{border:1px solid var(--line);border-radius:6px;background:var(--surface);color:inherit;font-size:13px;min-height:44px;padding:10px 14px;line-height:1.35}button{cursor:pointer}button[aria-pressed=true]{background:var(--accent);border-color:var(--accent);color:#fff}button:hover:not(:disabled),summary:hover{border-color:#697961;background-color:#e9eddf}button[aria-pressed=true]:hover{background:#364a2e}button:disabled,select:disabled,input:disabled{opacity:.5;cursor:not-allowed}
:is(button,input,select,summary,canvas):focus-visible{outline:3px solid #9a682b;outline-offset:3px}input[type=checkbox]{width:19px;height:19px;margin:0;accent-color:var(--accent);flex:none}select{max-width:100%;text-overflow:ellipsis;padding-right:28px}
.toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:10px}.view-buttons{display:flex;gap:6px}.roof-toggle{display:flex;align-items:center;gap:9px;min-height:44px;padding:6px 8px;font-size:13px;cursor:pointer;border-radius:5px}.roof-toggle:hover{background:#e9eddf}
.sculpture-toolbar{display:flex;align-items:center;gap:10px;margin:0 0 12px;flex-wrap:wrap}.sculpture-toolbar select{width:300px;min-width:0}.sculpture-navigation{display:flex;gap:6px;margin-left:auto}.sculpture-navigation button{white-space:nowrap}
#viewport{position:relative;background:#e7e5df;border:1px solid #d5d7cd;border-radius:8px;height:min(66vh,850px);min-height:380px;overflow:hidden;isolation:isolate}canvas{display:block;width:100%;height:100%;touch-action:none}
#status{position:absolute;left:16px;top:6px;font-size:13px;background:#f3f1ebf2;padding:9px 12px;border-radius:5px;pointer-events:none}#status.ready{opacity:0;transition:opacity .5s}#status.error{color:#812d22;max-width:calc(100% - 32px);line-height:1.5}
#focus-label{position:absolute;right:16px;top:6px;max-width:calc(100% - 32px);padding:8px 10px;border-radius:5px;background:#f3f1ebed;color:#343832;font-size:12px;line-height:1.4;pointer-events:none}#status:not(.ready)~#focus-label{display:none}
.gesture-hint{position:absolute;bottom:6px;left:14px;margin:0 0 8px;color:#4f584a;background:#f3f1ebed;padding:8px 10px;border-radius:5px;font-size:11px;max-width:calc(100% - 180px);line-height:1.5;pointer-events:none}.touch-help{display:none}
#viewport-fullscreen{position:absolute;right:14px;bottom:14px;z-index:4;display:flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 12px;background:#f3f1ebf2;box-shadow:0 1px 6px #24302514;font-size:12px;color:#343832}#viewport-fullscreen[aria-pressed=true]{background:#f3f1ebf2;border-color:#64735b;color:#343832}#viewport-fullscreen svg{flex:none}
.performance-details{margin-top:16px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.performance-details>summary{font-size:12px;color:var(--muted);min-height:44px;padding:14px 2px;cursor:pointer;width:100%}.metrics{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:18px;padding:6px 0 20px}.metrics>div{display:flex;flex-direction:column;gap:7px}.metrics span{font-size:11px;line-height:1.5;color:var(--muted)}.metrics strong{font-weight:500;font-size:16px;font-variant-numeric:tabular-nums}.footnote{font-size:12px;line-height:1.6;color:var(--muted);margin:14px 0 0}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
body #viewport:fullscreen,body #viewport.is-expanded{position:fixed;inset:0;width:100%;height:100vh;height:100dvh;min-height:0;max-height:none;max-width:none;margin:0;border:0;border-radius:0;z-index:10000;align-self:stretch}#viewport::backdrop{background:#e7e5df}body #viewport:fullscreen #scene,body #viewport.is-expanded #scene{width:100%;height:100%}
body #viewport:fullscreen #viewport-fullscreen,body #viewport.is-expanded #viewport-fullscreen{right:max(14px,env(safe-area-inset-right));bottom:max(14px,env(safe-area-inset-bottom))}
#fullscreen-tour-controls{display:none;position:absolute;top:max(14px,env(safe-area-inset-top));left:max(14px,env(safe-area-inset-left));z-index:5;align-items:center;gap:12px;width:max-content;max-width:calc(100% - 28px);padding:8px 10px;background:#f3f1ebf2;border:1px solid #d5d7cd;border-radius:7px;box-shadow:0 1px 6px #24302514}body #viewport:fullscreen #fullscreen-tour-controls:not([hidden]),body #viewport.is-expanded #fullscreen-tour-controls:not([hidden]){display:flex}#fullscreen-tour-title{font-size:13px;line-height:1.4;font-weight:500;max-width:340px;min-width:0}#fullscreen-tour-toggle{flex:none;min-height:44px;font-size:12px;padding:9px 12px}
body #viewport:fullscreen #focus-label,body #viewport.is-expanded #focus-label{top:auto;bottom:max(68px,calc(env(safe-area-inset-bottom) + 56px));right:max(14px,env(safe-area-inset-right));max-width:calc(100% - 28px)}
@media(max-width:980px){header{padding:18px 20px 16px}.intro{display:none}main{padding:0 20px 20px}.sculpture-toolbar select{flex:1;min-width:200px}.metrics{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:600px){header{padding:16px 12px 14px}h1{font-size:24px}.eyebrow{font-size:9px;margin-bottom:6px}main{padding:0 12px 20px}button,select{font-size:13px;padding:10px 11px}.toolbar{gap:6px;margin-bottom:8px}.view-buttons{gap:5px}.roof-toggle{font-size:12px;gap:7px;padding:6px 0 6px 4px;white-space:nowrap}.view-buttons button{font-size:12px;padding:10px 9px}.sculpture-toolbar{display:grid;grid-template-columns:1fr;gap:7px;margin-bottom:10px}.sculpture-toolbar select{width:100%;min-width:0;font-size:16px}.sculpture-navigation{display:grid;grid-template-columns:1fr 1fr 1fr;gap:6px;margin:0}.sculpture-navigation button{padding:10px 7px;font-size:12px}.gesture-hint{left:8px;bottom:4px;max-width:calc(100% - 145px);font-size:10px;padding:6px 7px}#viewport-fullscreen{right:8px;bottom:10px;font-size:11px;gap:6px;padding:9px 10px}#focus-label{top:4px;right:8px;max-width:calc(100% - 16px);font-size:11px}.metrics{grid-template-columns:repeat(2,minmax(0,1fr))}.footnote{font-size:11px}#fullscreen-tour-controls{left:max(8px,env(safe-area-inset-left));top:max(8px,env(safe-area-inset-top));max-width:calc(100% - 16px);gap:8px;padding:7px 8px}#fullscreen-tour-title{font-size:12px;max-width:190px}#fullscreen-tour-toggle{font-size:12px;padding:9px 10px}}
@media(pointer:coarse){.pointer-help{display:none}.touch-help{display:inline}}
@media(max-height:520px) and (min-width:601px){header{padding-top:10px;padding-bottom:10px}h1{font-size:24px}.eyebrow{display:none}.toolbar{margin-bottom:7px}.sculpture-toolbar{margin-bottom:8px}.gesture-hint{font-size:10px}}
@media(prefers-reduced-motion:reduce){#status.ready{transition:none}}