:root{--bg: #0f172a;--panel-bg: #1e293b;--border: #334155;--text: #e2e8f0;--muted: #94a3b8;--accent: #22c55e;--accent-hover: #16a34a;--danger: #ef4444;--danger-hover: #dc2626;--info: #3b82f6;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}.app-shell{max-width:640px;margin:0 auto;padding:24px 16px 64px}header h1{font-size:1.4rem;text-align:center;margin-bottom:24px}.panel{background:var(--panel-bg);border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:20px}.panel h2{margin-top:0}.stack{display:flex;flex-direction:column;gap:10px}label{font-size:.85rem;color:var(--muted)}input[type=text]{background:#0b1220;border:1px solid var(--border);color:var(--text);padding:10px 12px;border-radius:8px;font-size:1rem}button{background:var(--info);color:#fff;border:none;padding:10px 16px;border-radius:8px;font-size:1rem;cursor:pointer;transition:background .15s ease}button:hover:not(:disabled){filter:brightness(1.1)}button:disabled{opacity:.5;cursor:not-allowed}button.accept{background:var(--accent)}button.accept:hover:not(:disabled){background:var(--accent-hover)}button.reject{background:var(--danger)}button.reject:hover:not(:disabled){background:var(--danger-hover)}.button-row{display:flex;gap:12px;flex-wrap:wrap}.status-line{font-weight:600;font-size:1.05rem}.status-line .check{color:var(--accent)}.muted{color:var(--muted);font-size:.9rem}.error-text{color:var(--danger);font-size:.9rem;margin:0}.info-banner{background:#1e3a8a;border:1px solid var(--info);padding:10px 14px;border-radius:8px;margin-bottom:16px;cursor:pointer;font-size:.9rem}.incoming-call{text-align:center;border-color:var(--info)}.active-call{text-align:center}.timer{font-size:2rem;font-variant-numeric:tabular-nums;margin:8px 0}.audio-indicators{display:flex;justify-content:center;gap:20px;color:var(--muted);font-size:.9rem;margin-bottom:16px}.debug-panel{font-size:.85rem}.debug-panel h3{margin-top:0;font-size:1rem}.debug-row{display:flex;justify-content:space-between;margin-bottom:10px;padding-bottom:10px;border-bottom:1px solid var(--border)}.ok{color:var(--accent)}.bad{color:var(--danger)}.debug-grid{display:grid;grid-template-columns:1fr 1fr;row-gap:6px;color:var(--muted)}.debug-grid div:nth-child(odd){color:var(--text)}.candidate-pair{margin-top:12px;padding-top:12px;border-top:1px solid var(--border);color:var(--muted);word-break:break-all}.link-button{background:none;color:var(--info);padding:8px 0;margin-top:12px;text-decoration:underline}.log-box{background:#0b1220;border:1px solid var(--border);border-radius:8px;padding:12px;max-height:240px;overflow-y:auto;font-size:.78rem;white-space:pre-wrap;word-break:break-word}@media (max-width: 480px){.app-shell{padding:16px 12px 48px}.debug-grid{grid-template-columns:1fr 1fr}}