:root{--bg: #0b1220;--surface: #131c2e;--surface-2: #1b2740;--border: #2a3752;--text: #e5e9f0;--text-muted: #94a3b8;--accent: #3b82f6;--danger: #dc2626;--radius: 6px;color-scheme:dark}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.5}a,button,input{font-family:inherit}button{background:var(--accent);color:#fff;border:none;border-radius:var(--radius);padding:.6rem 1.1rem;font-size:.95rem;cursor:pointer}button:disabled{background:var(--surface-2);color:var(--text-muted);cursor:not-allowed}button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.landing-screen{max-width:640px;margin:0 auto;padding:2rem 1.25rem 4rem}.landing-screen h1{font-size:1.6rem;margin-bottom:.5rem}.disclaimer{background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--danger);border-radius:var(--radius);padding:.9rem 1rem;font-size:.9rem}.privacy-notice{color:var(--text-muted);font-size:.85rem}.threshold-form{border:1px solid var(--border);border-radius:var(--radius);padding:1rem;margin:1.5rem 0}.threshold-form legend{padding:0 .4rem;font-weight:600}.field-row{display:flex;justify-content:space-between;align-items:center;gap:1rem;margin:.6rem 0}.field-row input{width:8rem;background:var(--surface-2);border:1px solid var(--border);color:var(--text);border-radius:var(--radius);padding:.4rem .6rem}.hint{color:var(--text-muted);font-size:.85rem}.field-error{color:#fca5a5;font-weight:600;font-size:.9rem}.start-actions{display:flex;gap:.75rem;flex-wrap:wrap}.system-status{margin-top:2rem;color:var(--text-muted);font-size:.8rem}.session-view{display:grid;grid-template-columns:3fr 1fr;gap:1rem;height:100vh;padding:1rem}@media (max-width: 768px){.session-view{grid-template-columns:1fr;height:auto}}.session-main{position:relative;background:#000;border-radius:var(--radius);overflow:hidden;display:flex;align-items:center;justify-content:center;min-height:320px}.camera-preview{width:100%;height:100%;object-fit:cover}.video-progress{color:var(--text-muted);padding:2rem}.state-badge{position:absolute;top:.75rem;left:.75rem;padding:.4rem .8rem;border-radius:var(--radius);font-weight:700;color:#fff;font-size:.9rem}.session-sidebar{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1rem;display:flex;flex-direction:column;gap:1rem}.metrics-panel{display:grid;grid-template-columns:auto 1fr;gap:.3rem .75rem;margin:0}.metrics-panel dt{color:var(--text-muted);font-size:.85rem}.metrics-panel dd{margin:0;font-variant-numeric:tabular-nums}.session-controls{display:flex;gap:.5rem;flex-wrap:wrap}.privacy-indicator{color:var(--text-muted);font-size:.8rem}.session-summary{max-width:560px;margin:2rem auto;padding:1.5rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}.session-summary dl{display:grid;grid-template-columns:auto 1fr;gap:.4rem 1rem}.session-summary dt{color:var(--text-muted)}.session-summary dd{margin:0}