:root{--bg: #09090b;--bg-elevated: #18181b;--bg-hover: #27272a;--border: #27272a;--border-hover: #3f3f46;--text: #fafafa;--text-secondary: #a1a1aa;--text-muted: #71717a;--accent: #3b82f6;--accent-hover: #2563eb;--success: #22c55e;--radius: 12px;--radius-sm: 8px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg);color:var(--text);overflow:hidden;width:100vw;height:100vh;-webkit-font-smoothing:antialiased}#app{position:relative;width:100%;height:100%}#scene-canvas{position:absolute;top:0;left:0;width:100%;height:100%;z-index:1}#vignette-overlay{position:absolute;top:0;left:0;width:100%;height:100%;z-index:2;pointer-events:none;background:radial-gradient(ellipse at center,transparent 50%,rgba(0,0,0,.6) 100%)}#webcam-container{position:absolute;bottom:20px;right:20px;width:180px;height:135px;border-radius:var(--radius);overflow:hidden;z-index:100;background:var(--bg-elevated);border:1px solid var(--border);box-shadow:0 4px 24px #0006}#webcam{width:100%;height:100%;object-fit:cover;transform:scaleX(-1)}#face-canvas{position:absolute;top:0;left:0;width:100%;height:100%;transform:scaleX(-1);pointer-events:none}#tracking-indicator{position:absolute;bottom:8px;left:50%;transform:translate(-50%);padding:4px 10px;background:#000000b3;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-radius:6px;font-size:11px;font-weight:500;color:var(--text-secondary);transition:color .2s ease}#tracking-indicator.active{color:var(--success)}#scene-dropdown{position:absolute;top:20px;left:20px;z-index:200}#dropdown-toggle{display:flex;align-items:center;gap:8px;padding:10px 16px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);font-family:inherit;font-size:14px;font-weight:500;cursor:pointer;transition:all .15s ease}#dropdown-toggle:hover{background:var(--bg-hover);border-color:var(--border-hover)}#dropdown-menu{position:absolute;top:calc(100% + 8px);left:0;min-width:180px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius);padding:8px;box-shadow:0 8px 32px #0006}#dropdown-menu.hidden{display:none}.dropdown-section{margin-bottom:8px}.dropdown-label{padding:4px 8px;font-size:11px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}.dropdown-item{display:flex;align-items:center;gap:8px;width:100%;padding:8px 10px;background:transparent;border:none;border-radius:var(--radius-sm);color:var(--text-secondary);font-family:inherit;font-size:13px;cursor:pointer;text-align:left;transition:all .1s ease}.dropdown-item:hover{background:var(--bg-hover);color:var(--text)}.dropdown-item.active{background:var(--accent);color:#fff}#controls-panel{position:absolute;bottom:20px;left:20px;width:260px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius);z-index:100;overflow:hidden}#panel-toggle{width:100%;display:flex;align-items:center;justify-content:space-between;padding:12px 14px;background:transparent;border:none;color:var(--text);font-family:inherit;font-size:13px;font-weight:500;cursor:pointer;transition:background .15s ease}#panel-toggle:hover{background:var(--bg-hover)}#panel-toggle svg{transition:transform .2s ease}#controls-panel:not(.collapsed) #panel-toggle svg{transform:rotate(180deg)}.panel-content{padding:0 14px 14px;display:grid;gap:14px;max-height:300px;overflow:hidden;transition:all .2s ease}#controls-panel.collapsed .panel-content{max-height:0;padding-top:0;padding-bottom:0;opacity:0}.control-group{display:grid;gap:8px}.control-header{display:flex;justify-content:space-between;font-size:12px;color:var(--text-secondary)}.control-header span:last-child{color:var(--text);font-weight:500;font-variant-numeric:tabular-nums}input[type=range]{width:100%;height:4px;-webkit-appearance:none;-moz-appearance:none;appearance:none;background:var(--border);border-radius:2px;outline:none}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:14px;height:14px;background:var(--text);border-radius:50%;cursor:pointer;transition:transform .1s ease}input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.15)}input[type=range]::-moz-range-thumb{width:14px;height:14px;background:var(--text);border-radius:50%;cursor:pointer;border:none}.action-btn{width:100%;padding:10px;background:var(--bg-hover);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-secondary);font-family:inherit;font-size:12px;font-weight:500;cursor:pointer;transition:all .15s ease}.action-btn:hover{background:var(--border);color:var(--text);border-color:var(--border-hover)}.divider{height:1px;background:var(--border)}.gesture-hints{display:grid;gap:6px}.hint{font-size:12px;color:var(--text-muted)}.key{display:inline-block;padding:2px 6px;background:var(--bg-hover);border-radius:4px;font-size:11px;font-weight:500;color:var(--text-secondary);margin-right:4px}#loading-overlay{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;background:var(--bg);z-index:1000;transition:opacity .3s ease}#loading-overlay.hidden{opacity:0;pointer-events:none}.spinner{width:24px;height:24px;border:2px solid var(--border);border-top-color:var(--text);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}#loading-overlay p{color:var(--text-secondary);font-size:13px}@media (max-width: 768px){#webcam-container{width:140px;height:105px;bottom:10px;right:10px}#controls-panel{width:220px;left:10px;bottom:10px}#scene-dropdown{left:10px;top:10px}}