:root{--paper:#ede9df;--select-blue:#3b82f6;--ink:#2b2a27;--ink-muted:#6e6b63;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif}*{box-sizing:border-box}html,body{background:var(--paper);height:100%;margin:0;overflow:hidden}#app{position:fixed;inset:0}#scene-canvas{touch-action:none;width:100%;height:100%;display:block}#overlay-layer{pointer-events:none;position:absolute;inset:0}.selection-box{border:1.5px solid var(--select-blue);will-change:transform;position:absolute;top:0;left:0}.selection-box .handle{border:1.5px solid var(--select-blue);background:#fff;width:8px;height:8px;position:absolute}.handle.tl{top:-4.5px;left:-4.5px}.handle.tr{top:-4.5px;right:-4.5px}.handle.bl{bottom:-4.5px;left:-4.5px}.handle.br{bottom:-4.5px;right:-4.5px}.selection-label{white-space:pre;background:var(--select-blue);color:#fff;font-variant-numeric:tabular-nums;letter-spacing:.01em;border-radius:4px;padding:2px 7px;font-size:11px;font-weight:500;position:absolute;top:calc(100% + 6px);left:50%;transform:translate(-50%)}.cow-toolbar{-webkit-backdrop-filter:blur(12px);pointer-events:auto;-webkit-user-select:none;user-select:none;will-change:transform;background:#ffffffdb;border-radius:12px;align-items:center;gap:2px;padding:4px;display:flex;position:absolute;top:0;left:0;box-shadow:0 0 0 1px #1e1e140f,0 8px 24px #28321429}.cow-toolbar .segment{gap:2px;display:flex}.cow-toolbar button{color:var(--ink-muted);font:inherit;cursor:pointer;background:0 0;border:0;border-radius:8px;height:30px;padding:0 11px;font-size:13px;transition:background .12s,color .12s}.cow-toolbar button:hover:not(:disabled){color:var(--ink);background:#28281e0f}.cow-toolbar button.active{color:var(--ink);background:#283c1e1a;font-weight:500}.cow-toolbar button.icon{place-items:center;width:30px;padding:0;display:grid}.cow-toolbar button.icon svg{width:16px;height:16px}.cow-toolbar button:disabled{opacity:.35;cursor:default}.mode-switch .divider,.cow-toolbar .divider{background:#28281e1f;width:1px;height:18px;margin:0 4px}.mode-switch,.view-hint-bar{-webkit-backdrop-filter:blur(12px);pointer-events:auto;-webkit-user-select:none;user-select:none;background:#ffffffdb;border-radius:12px;align-items:center;gap:2px;padding:4px;display:flex;position:absolute;box-shadow:0 0 0 1px #1e1e140f,0 8px 24px #2832141f}.mode-switch{top:16px;left:16px}.mode-switch button,.view-hint-bar button{color:var(--ink-muted);font:inherit;cursor:pointer;background:0 0;border:0;border-radius:8px;height:30px;padding:0 14px;font-size:13px;transition:background .12s,color .12s}.mode-switch button:hover,.view-hint-bar button:hover{color:var(--ink);background:#28281e0f}.mode-switch button.active{color:var(--ink);background:#283c1e1a;font-weight:500}.view-hint-bar{color:var(--ink-muted);opacity:0;pointer-events:none;padding-left:14px;font-size:12.5px;transition:opacity .2s,transform .2s;bottom:20px;left:50%;transform:translate(-50%,8px)}.view-hint-bar.visible{opacity:1;pointer-events:auto;transform:translate(-50%)}.view-hint-bar span{white-space:nowrap;margin-right:6px}.mood-bubble-layer{pointer-events:none;position:absolute;inset:0;overflow:hidden}.mood-bubble{will-change:transform;line-height:1;position:absolute;top:0;left:0}.mood-bubble span{background:#ffffffeb;border-radius:999px;padding:.22em .32em;animation:2.2s ease-out forwards mood-bubble-life;display:block;transform:translate(-50%,-100%);box-shadow:0 4px 14px #2832142e}@keyframes mood-bubble-life{0%{opacity:0;transform:translate(-50%,-60%)scale(.2)}12%{opacity:1;transform:translate(-50%,-105%)scale(1.15)}22%{transform:translate(-50%,-100%)scale(1)}78%{opacity:1;transform:translate(-50%,-125%)scale(1)}to{opacity:0;transform:translate(-50%,-150%)scale(.85)}}.mode-switch .sound-toggle{width:34px;padding:0;font-size:15px}