:root{--text: #6b6375;--text-h: #08060d;--bg: #fff;--border: #e5e4e7;--code-bg: #f4f3ec;--accent: #aa3bff;--accent-bg: rgba(170, 59, 255, .1);--accent-border: rgba(170, 59, 255, .5);--shadow: rgba(0, 0, 0, .1) 0 10px 15px -3px, rgba(0, 0, 0, .05) 0 4px 6px -2px;--sans: system-ui, "Segoe UI", Roboto, sans-serif;--heading: system-ui, "Segoe UI", Roboto, sans-serif;--mono: ui-monospace, Consolas, monospace;font:18px/145% var(--sans);letter-spacing:.18px;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media(max-width:1024px){:root{font-size:16px}}@media(prefers-color-scheme:dark){:root{--text: #9ca3af;--text-h: #f3f4f6;--bg: #16171d;--border: #2e303a;--code-bg: #1f2028;--accent: #c084fc;--accent-bg: rgba(192, 132, 252, .15);--accent-border: rgba(192, 132, 252, .5);--shadow: rgba(0, 0, 0, .4) 0 10px 15px -3px, rgba(0, 0, 0, .25) 0 4px 6px -2px}}body{margin:0}#root{width:100svw;max-width:100svw;margin:0 auto;text-align:center;border-inline:1px solid var(--border);min-height:100svh;display:flex;flex-direction:column;box-sizing:border-box}h1,h2{font-family:var(--heading);font-weight:500;color:var(--text-h)}h1{font-size:56px;letter-spacing:-1.68px;margin:32px 0}@media(max-width:1024px){h1{font-size:36px;margin:20px 0}}h2{font-size:24px;line-height:118%;letter-spacing:-.24px;margin:0 0 8px}@media(max-width:1024px){h2{font-size:20px}}p{margin:0}code{font-family:var(--mono);display:inline-flex;border-radius:4px;color:var(--text-h)}code{font-size:15px;line-height:135%;padding:4px 8px;background:var(--code-bg)}#root{max-width:100svw;margin:0 auto;padding:2rem;text-align:center}.container{display:flex;flex-direction:column;align-items:center;font-family:system-ui,-apple-system,sans-serif}.status{color:#666;margin-bottom:1rem}.video-container{position:relative;width:100%;max-width:500px;border-radius:12px;overflow:hidden;box-shadow:0 4px 12px #0003;background:#000;margin-bottom:1.5rem}.camera-feed{width:100%;height:auto;display:block}.camera-grid-overlay{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:4}.camera-grid-toggle{position:absolute;top:10px;left:50%;transform:translate(-50%);z-index:12;background:#0f172aa6;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);color:#94a3b8;border:1px solid rgba(255,255,255,.2);border-radius:6px;padding:4px 10px;font-size:.75rem;font-weight:500;cursor:pointer;display:flex;align-items:center;gap:5px;transition:all .2s ease;-webkit-user-select:none;user-select:none}.camera-grid-toggle:hover{background:#0f172ad9;color:#fff;border-color:#fff6}.camera-grid-toggle.active{color:#38bdf8;border-color:#38bdf880;background:#0f172abf}.guidance-overlay{position:absolute;bottom:20px;left:50%;transform:translate(-50%);background:#000000b3;padding:10px 20px;border-radius:8px;font-weight:700;font-size:1.2rem;white-space:nowrap;pointer-events:none;text-shadow:1px 1px 2px rgba(0,0,0,.8)}.controls{display:flex;flex-direction:column;gap:1rem;width:100%;max-width:300px}.btn{padding:12px 20px;font-size:1rem;font-weight:600;border:none;border-radius:8px;cursor:pointer;transition:all .2s ease;background-color:#f0f0f0;color:#333}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-start{background-color:#3b82f6;color:#fff}.btn-start:hover:not(:disabled){background-color:#2563eb}.btn-stop{background-color:#ef4444;color:#fff}.btn-stop:hover:not(:disabled){background-color:#dc2626}@media(max-width:600px){#root{padding:1rem}.video-container{border-radius:8px;margin-bottom:1rem}.guidance-overlay{font-size:1rem;padding:8px 16px;width:90%;white-space:normal;text-align:center;bottom:10px}.controls{max-width:100%}.btn{padding:16px 20px;font-size:1.1rem}}