:root{--page-bg: #f4f7f8;--panel-bg: #ffffff;--text-primary: #182026;--text-secondary: #62707a;--text-muted: #697780;--text-body: #45545d;--border: #d8e0e3;--divider: #e2e8eb;--input-border: #aebbc1;--button-secondary-text: #1d3038;--progress-track: #dfe7ea;--guide-bg: #eef5ff;--guide-border: #c9ddf7;--guide-text: #26364a;--accent: #2563eb;--accent-hover: #1d4ed8;--shadow: rgba(27, 39, 44, .08);color:var(--text-primary);background:var(--page-bg);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility}:root[data-theme=dark]{--page-bg: #101923;--panel-bg: #182635;--text-primary: #edf3f7;--text-secondary: #aab9c5;--text-muted: #9aabb8;--text-body: #c3d0d9;--border: #314556;--divider: #2d4051;--input-border: #53697a;--button-secondary-text: #edf3f7;--progress-track: #304454;--guide-bg: #1d3045;--guide-border: #3d5d7f;--guide-text: #f3f6fa;--accent: #70a7ff;--accent-hover: #98c1ff;--shadow: rgba(0, 0, 0, .22)}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0;color:var(--text-primary);background:var(--page-bg)}button{font:inherit}.app-shell{min-height:100vh;padding:32px;background:var(--page-bg)}.workspace{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(320px,.8fr);gap:24px;width:min(1160px,100%);margin:0 auto}.status-column{align-self:start}.app-footer{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;width:min(1160px,100%);margin:18px auto 0;color:var(--text-secondary);font-size:.86rem}.footer-links{display:flex;flex-wrap:wrap;gap:14px}.footer-links a{display:inline-flex;align-items:center;gap:6px;color:var(--accent);font-weight:700;text-decoration:none}.footer-links svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.8}.footer-links a:hover{color:var(--accent-hover);text-decoration:underline}.camera-panel,.status-card{background:var(--panel-bg);border:1px solid var(--border);border-radius:8px;box-shadow:0 16px 40px var(--shadow)}.camera-panel{padding:24px}.page-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:20px}.theme-toggle{display:grid;place-items:center;width:40px;height:40px;flex:0 0 40px;margin-top:2px;padding:0;color:var(--text-primary);background:var(--panel-bg);border:1px solid var(--input-border);border-radius:50%;cursor:pointer}.theme-toggle:hover{color:var(--accent);border-color:var(--accent)}.theme-toggle:focus-visible{outline:3px solid color-mix(in srgb,var(--accent) 35%,transparent);outline-offset:2px}.theme-toggle svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.8}.eyebrow{margin:0 0 6px;color:var(--text-secondary);font-size:.78rem;font-weight:700;letter-spacing:0;text-transform:uppercase}h1,h2{margin:0;color:var(--text-primary);letter-spacing:0}h1{font-size:3rem;line-height:1}h2{font-size:1.45rem}.video-frame{position:relative;display:grid;place-items:center;width:100%;aspect-ratio:16 / 9;overflow:hidden;border:1px solid var(--input-border);border-radius:8px;background:#162126}.webcam-video{width:100%;height:100%;object-fit:cover}.video-placeholder{position:absolute;display:grid;place-items:center;top:0;right:0;bottom:0;left:0;color:#d6dee2;font-size:1rem;background:#162126}.bbox-overlay{position:absolute;z-index:2;border:3px solid #2f9a68;box-shadow:0 0 0 1px #00000073;pointer-events:none}.bbox-overlay.suspected{border-color:#d9a441}.bbox-overlay.warning{border-color:#c3453b}.bbox-label{position:absolute;left:-3px;bottom:100%;max-width:min(220px,80vw);padding:4px 7px;color:#fff;background:#23715b;border-radius:4px 4px 0 0;font-size:.82rem;font-weight:800;line-height:1.1;white-space:nowrap}.bbox-overlay.suspected .bbox-label{background:#b18122}.bbox-overlay.warning .bbox-label{background:#c3453b}.camera-controls{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px}.button{min-width:140px;height:44px;border:1px solid transparent;border-radius:6px;cursor:pointer;font-weight:700}.button.compact{min-width:120px;height:38px;font-size:.9rem}.button:disabled{cursor:not-allowed;opacity:.5}.button.primary{color:#fff;background:#23715b}.button.secondary{color:var(--button-secondary-text);background:var(--panel-bg);border-color:var(--input-border)}.button.analyze{color:#fff;background:#334e68}.button.stop-detection{color:#fff;background:#a4473f}.hidden-canvas{display:none}.camera-message{margin:14px 0 0;color:#9a3d2f;font-size:.95rem}.status-card{align-self:start;padding:22px}.status-header{display:flex;align-items:center;gap:14px;padding-bottom:18px;border-bottom:1px solid var(--divider)}.status-header.awake h2{color:#23715b}.status-header.suspected h2{color:#b18122}.status-header.warning h2{color:#c3453b}.status-dot{width:16px;height:16px;flex:0 0 16px;border-radius:999px;background:#2f9a68}.status-dot.suspected{background:#d9a441}.status-dot.warning{background:#c3453b}.metric-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:18px 0 0}.metric{min-height:88px;padding:12px 0;border-bottom:1px solid var(--divider)}.metric.wide{grid-column:1 / -1}.metric dt{margin:0 0 10px;color:var(--text-muted);font-size:.82rem}.metric dd{margin:0;color:var(--text-primary);font-size:1.35rem;font-weight:800;overflow-wrap:anywhere}.progress-block{margin-top:18px}.progress-label{display:flex;justify-content:space-between;gap:12px;margin-bottom:8px;color:var(--text-body);font-size:.9rem;font-weight:700}.progress-track{height:12px;overflow:hidden;border-radius:999px;background:var(--progress-track)}.progress-value{height:100%;border-radius:inherit;background:#23715b}.progress-value.suspected{background:#d9a441}.progress-value.warning{background:#c3453b}.drowsy-guide{display:flex;align-items:center;gap:14px;width:100%;margin:18px 0 0;padding:12px 16px;border:1px solid var(--guide-border);border-radius:10px;background:var(--guide-bg);color:var(--guide-text);font-size:.86rem;line-height:1.45}.drowsy-guide-icon{display:grid;place-items:center;width:30px;height:30px;flex:0 0 30px;border-radius:50%;color:#fff;background:#347be5;font-size:1.15rem;font-weight:800;line-height:1}.drowsy-guide p{margin:0}.export-panel{margin-top:18px;padding-top:16px;border-top:1px solid var(--divider)}.export-count{margin:0 0 10px;color:var(--text-body);font-size:.9rem;font-weight:700}.export-actions{display:flex;flex-wrap:wrap;gap:10px}@media(max-width:860px){.app-shell{padding:18px}.workspace{grid-template-columns:1fr}.app-footer{align-items:flex-start;flex-direction:column}}@media(max-width:520px){.camera-panel,.status-card{padding:16px}.camera-controls{flex-direction:column}.button{width:100%}.metric-grid{grid-template-columns:1fr}h1{font-size:2.2rem}}