:root{color-scheme:light dark;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}body{margin:0;background:#0f172a;color:#e2e8f0}.app{max-width:760px;margin:0 auto;padding:24px 16px 64px}.app__header h1{margin-bottom:4px}.app__subtitle{margin-top:0;color:#94a3b8}.controls,.simulate,.transcript{background:#1e293b;border-radius:12px;padding:16px;margin-top:16px}.controls__status{display:flex;align-items:center;gap:16px;margin-bottom:12px}.indicator{font-weight:700;color:#64748b}.indicator--live{color:#ef4444;animation:pulse 1.2s ease-in-out infinite}@keyframes pulse{50%{opacity:.4}}.controls__buttons button,.simulate__row button{margin-right:8px;padding:8px 16px;border:none;border-radius:8px;background:#2563eb;color:#fff;font-weight:600;cursor:pointer}button:disabled{background:#475569;cursor:not-allowed}button:focus-visible,input:focus-visible{outline:3px solid #38bdf8;outline-offset:2px}.simulate__row{display:flex;gap:8px;margin-top:8px}.simulate__row input{flex:1;padding:8px;border-radius:8px;border:1px solid #334155;background:#0f172a;color:inherit}.transcript__list{list-style:none;padding:0;margin:0}.segment{display:flex;gap:12px;padding:6px 0;border-bottom:1px solid #334155}.segment--interim{color:#94a3b8;font-style:italic;border-bottom:none}.segment__time{flex:0 0 auto;font-variant-numeric:tabular-nums;color:#38bdf8;background:none;border:none;padding:0;cursor:pointer;font:inherit}.segment--interim .segment__time{color:#64748b;cursor:default}.error{color:#fca5a5;background:#451a1a;padding:8px 12px;border-radius:8px}.transcript__summary{margin-top:12px;color:#86efac;font-weight:600}