:root{--bg: #0b0f1a;--surface: #141b2d;--surface2: #1c2538;--border: #2a3548;--text: #e8eef8;--muted: #8b9bb4;--accent: #3b82f6;--accent-hover: #2563eb;--success: #22c55e;--warning: #f59e0b;--danger: #ef4444;--radius: 12px;--font: "Inter", system-ui, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh;line-height:1.5}.top-nav{display:flex;align-items:center;gap:8px;padding:12px 24px;background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50;flex-wrap:wrap}.top-nav .brand{font-weight:700;font-size:1.15rem;margin-right:16px;color:var(--text);text-decoration:none;display:flex;align-items:center;gap:8px}.top-nav a{color:var(--muted);text-decoration:none;padding:8px 14px;border-radius:8px;font-size:.9rem;font-weight:500;transition:all .15s}.top-nav a:hover,.top-nav a.active{color:var(--text);background:var(--surface2)}.top-nav .spacer{flex:1}.role-badge{font-size:.75rem;padding:4px 10px;border-radius:999px;background:var(--surface2);color:var(--muted);border:1px solid var(--border)}.container{max-width:1100px;margin:0 auto;padding:24px 20px 48px}h1{font-size:1.75rem;font-weight:700;margin-bottom:8px}h2{font-size:1.25rem;font-weight:600;margin-bottom:12px}.muted{color:var(--muted)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:16px}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 18px;border-radius:10px;font-weight:600;font-size:.9rem;border:none;cursor:pointer;transition:all .15s;font-family:inherit}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-ghost{background:transparent;color:var(--muted);border:1px solid var(--border)}.btn-ghost:hover{background:var(--surface2);color:var(--text)}.btn-danger{background:var(--danger);color:#fff}.btn-lg{padding:14px 28px;font-size:1rem}.call-stage{display:grid;grid-template-columns:1fr;gap:16px}@media (min-width: 900px){.call-stage{grid-template-columns:1fr 340px}}.video-area{background:#000;border-radius:var(--radius);aspect-ratio:16/10;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;min-height:280px}.persona-avatar{width:120px;height:120px;border-radius:50%;object-fit:cover;border:3px solid var(--accent)}.local-tile{position:absolute;bottom:16px;right:16px;width:140px;height:100px;background:#1a1a1a;border-radius:8px;border:2px solid var(--border);overflow:hidden}.local-tile video{width:100%;height:100%;object-fit:cover}.controls-bar{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;padding:16px;background:var(--surface);border-radius:var(--radius);border:1px solid var(--border)}.control-btn{width:52px;height:52px;border-radius:50%;border:none;background:var(--surface2);color:var(--text);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.2rem;transition:all .15s}.control-btn:hover{background:var(--border)}.control-btn.off{background:var(--danger)}.control-btn.record{background:#7f1d1d}.control-btn.record.active{background:var(--danger);animation:pulse 1.2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.6}}.voice-status{text-align:center;padding:12px;font-size:.9rem;color:var(--muted)}.voice-status.listening{color:var(--success)}.voice-status.speaking{color:var(--accent)}.ringing-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#000000bf;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;z-index:5}.ringing-overlay .pulse-ring{width:80px;height:80px;border-radius:50%;border:3px solid var(--accent);animation:ring 1.2s ease-out infinite}@keyframes ring{0%{transform:scale(.8);opacity:1}to{transform:scale(1.4);opacity:0}}.transcript-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);display:flex;flex-direction:column;max-height:420px}.transcript-panel header{padding:12px 16px;border-bottom:1px solid var(--border);font-weight:600;font-size:.9rem}.transcript-list{flex:1;overflow-y:auto;padding:12px 16px;display:flex;flex-direction:column;gap:12px}.turn{max-width:90%}.turn.you{align-self:flex-end}.turn .meta{font-size:.7rem;color:var(--muted);margin-bottom:2px}.turn .bubble{padding:10px 14px;border-radius:12px;font-size:.9rem;background:var(--surface2)}.turn.you .bubble{background:var(--accent);color:#fff}.score-ring{width:100px;height:100px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700;border:6px solid var(--accent);margin:0 auto 16px}.comp-row{display:flex;align-items:center;gap:12px;margin-bottom:10px}.comp-bar{flex:1;height:8px;background:var(--surface2);border-radius:4px;overflow:hidden}.comp-bar span{display:block;height:100%;background:var(--accent);border-radius:4px}.challenge-item{padding:12px;border-left:3px solid var(--warning);background:var(--surface2);border-radius:0 8px 8px 0;margin-bottom:10px}.challenge-item.high{border-left-color:var(--danger)}.challenge-item.low{border-left-color:var(--success)}.nudge{background:linear-gradient(135deg,#1e3a5f,#1a2740);border:1px solid var(--accent);border-radius:var(--radius);padding:20px;margin-top:20px}.nudge h3{margin-bottom:8px;display:flex;align-items:center;gap:8px}@media (max-width: 600px){.top-nav{padding:10px 12px}.container{padding:16px 12px 40px}.local-tile{width:100px;height:72px}.controls-bar{gap:8px}.control-btn{width:46px;height:46px}}.role-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;margin-top:16px}.role-card{padding:16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;transition:all .15s;text-align:left}.role-card:hover,.role-card.selected{border-color:var(--accent);background:var(--surface2)}.role-card h4{margin-bottom:4px}