.app-layout{display:flex;flex-direction:column;height:100%;overflow:hidden;position:relative}.session-bar{position:absolute;bottom:16px;left:50%;transform:translateX(-50%);z-index:100;display:flex;align-items:center;gap:12px;padding:6px 8px 6px 14px;background:var(--surface,#ffffff);border:1px solid var(--border,#e2e8f0);border-radius:40px;box-shadow:0 4px 20px rgba(0,0,0,.08)}.session-bar-actions,.status-pill{display:flex;align-items:center;gap:6px}.status-pill{padding:5px 14px;border-radius:20px;font-size:12px;font-weight:600;letter-spacing:.3px}.status-pill.connected{background:var(--success-bg);color:#087f5b}.status-pill.disconnected{background:#f8f9fa;color:var(--muted)}.status-pill.connecting{background:#fff9db;color:#e67700}.status-dot-inner{width:8px;height:8px;border-radius:50%}.status-pill.connected .status-dot-inner{background:var(--success);box-shadow:0 0 6px rgba(6,214,160,.5)}.status-pill.disconnected .status-dot-inner{background:#ced4da}.status-pill.connecting .status-dot-inner{background:var(--warning);animation:blink 1s infinite}.btn-start{display:inline-flex;align-items:center;gap:8px;padding:8px 20px;background:linear-gradient(135deg,var(--primary),#7209b7);color:white;border:none;border-radius:24px;font-size:13px;font-weight:600;cursor:pointer;transition:all .2s ease;box-shadow:0 2px 8px rgba(67,97,238,.3)}.btn-start:hover{transform:translateY(-1px);box-shadow:0 4px 16px rgba(67,97,238,.4)}.btn-start:disabled{opacity:.6;cursor:not-allowed;transform:none}.toolbar-action-btn{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;background:var(--surface);color:var(--fg);border:1px solid var(--border);border-radius:20px;font-size:12px;font-weight:500;cursor:pointer;transition:all .15s ease}.toolbar-action-btn:hover{background:var(--surface-hover);border-color:#dee2e6}.toolbar-action-btn.danger{color:var(--danger);border-color:rgba(239,71,111,.3)}.toolbar-action-btn.danger:hover{background:#fff5f5}.toolbar-mic-btn{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;background:var(--surface-hover);color:var(--muted);border:1px solid var(--border);border-radius:20px;font-size:12px;font-weight:500;cursor:pointer;transition:all .2s ease}.toolbar-mic-btn.active{background:linear-gradient(135deg,var(--accent),#e91e63);color:white;border-color:transparent;box-shadow:0 2px 12px rgba(247,37,133,.35);animation:mic-glow 2s infinite}@keyframes mic-glow{0%,to{box-shadow:0 2px 12px rgba(247,37,133,.35)}50%{box-shadow:0 2px 20px rgba(247,37,133,.55)}}.camera-preview{position:absolute;top:16px;left:16px;z-index:90;width:320px;border-radius:16px;overflow:hidden;box-shadow:0 8px 32px rgba(0,0,0,.18);border:2px solid var(--primary);background:#000;animation:camera-in .3s ease}@keyframes camera-in{0%{opacity:0;transform:scale(.9) translateY(-10px)}to{opacity:1;transform:scale(1) translateY(0)}}.camera-video{width:100%;display:block;border-radius:14px 14px 0 0;transition:opacity .15s}.camera-controls{display:flex;align-items:center;justify-content:center;gap:8px;padding:8px;background:rgba(0,0,0,.7)}.camera-capture-btn{display:inline-flex;align-items:center;gap:6px;padding:6px 16px;background:linear-gradient(135deg,var(--primary),#7209b7);color:white;border:none;border-radius:20px;font-size:12px;font-weight:600;cursor:pointer;transition:all .15s}.camera-capture-btn:hover{transform:scale(1.05);box-shadow:0 2px 12px rgba(67,97,238,.4)}.camera-close-btn{width:30px;height:30px;border-radius:50%;border:none;background:rgba(255,255,255,.15);color:white;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .15s}.camera-close-btn:hover{background:rgba(239,71,111,.6)}.toolbar-action-btn.camera-active{color:var(--primary);border-color:var(--primary);background:var(--primary-light)}.content-area{display:flex;flex:1 1;overflow:hidden}.canvas-panel{flex:1 1;position:relative;min-height:0}.canvas-panel>div{position:absolute;inset:0}.side-panel{width:360px;min-width:0;background:var(--surface);border-left:1px solid var(--border);transition:width .3s ease,min-width .3s ease;overflow:visible}.panel-container,.side-panel{display:flex;flex-direction:column;position:relative}.panel-container{height:100%}.panel-container.collapsed{width:0;min-width:0;overflow:hidden}.side-panel:has(.panel-container.collapsed){width:auto}.panel-toggle{position:absolute;left:-16px;top:50%;transform:translateY(-50%);width:16px;height:48px;background:var(--surface);border:1px solid var(--border);border-right:none;border-radius:8px 0 0 8px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:10px;color:var(--muted);z-index:10;transition:background .15s}.panel-toggle:hover{background:var(--surface-hover)}.panel-header{display:flex;align-items:center;gap:8px;padding:14px 16px;border-bottom:1px solid var(--border)}.panel-header-icon{width:32px;height:32px;border-radius:var(--radius);background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center}.panel-header-text{font-size:14px;font-weight:600;color:var(--fg);flex:1 1}.panel-msg-count{font-size:11px;font-weight:600;color:var(--primary);background:var(--primary-light);padding:2px 8px;border-radius:10px;min-width:24px;text-align:center}.activity-feed{flex:1 1;overflow-y:auto;padding:12px}.activity-feed::-webkit-scrollbar{width:4px}.activity-feed::-webkit-scrollbar-track{background:transparent}.activity-feed::-webkit-scrollbar-thumb{background:#dee2e6;border-radius:4px}.empty-state{flex-direction:column;height:100%;gap:12px;text-align:center;padding:40px 24px}.empty-icon,.empty-state{display:flex;align-items:center;justify-content:center}.empty-icon{width:64px;height:64px;border-radius:50%;background:#f1f3f5}.empty-state p{font-size:13px;color:var(--muted);max-width:200px;line-height:1.5}.activity-item{display:flex;gap:10px;padding:10px 8px;border-radius:var(--radius);transition:background .1s;margin-bottom:2px}.activity-item:hover{background:rgba(0,0,0,.02)}.activity-item.partial{opacity:.75}.activity-avatar{width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:2px}.activity-item.user .activity-avatar{background:var(--primary-light);color:var(--primary)}.activity-item.agent .activity-avatar{background:#ffffff;color:white}.activity-content{flex:1 1;min-width:0}.activity-meta{display:flex;align-items:center;gap:8px;margin-bottom:3px}.activity-sender{font-size:12px;font-weight:600;color:var(--fg)}.activity-time{font-size:10px;color:#adb5bd}.activity-text{font-size:13px;line-height:1.55;color:#495057;word-wrap:break-word}.activity-item.agent .activity-text{color:var(--fg)}.typing-dots{display:inline-flex;gap:3px;margin-left:4px;vertical-align:middle}.typing-dots span{width:4px;height:4px;border-radius:50%;background:var(--muted);animation:bounce-dot 1.4s infinite}.typing-dots span:nth-child(2){animation-delay:.2s}.typing-dots span:nth-child(3){animation-delay:.4s}@keyframes bounce-dot{0%,80%,to{transform:scale(.6);opacity:.4}40%{transform:scale(1);opacity:1}}.panel-input{display:flex;gap:8px;padding:12px;border-top:1px solid var(--border);background:var(--surface)}.panel-input input{flex:1 1;padding:10px 14px;background:#f1f3f5;border:1px solid transparent;border-radius:24px;font-size:13px;font-family:var(--font);outline:none;transition:all .15s}.panel-input input:focus{background:white;border-color:var(--primary);box-shadow:0 0 0 3px rgba(67,97,238,.1)}.send-btn{width:38px;height:38px;border-radius:50%;border:none;background:var(--primary);color:white;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .15s;flex-shrink:0}.send-btn:hover{background:var(--primary-dark);transform:scale(1.05)}.send-btn:disabled{background:#dee2e6;color:#adb5bd;cursor:not-allowed;transform:none}@keyframes blink{0%,to{opacity:1}50%{opacity:.3}}@media (max-width:900px){.side-panel{width:300px}.brand-text{display:none}}@media (max-width:768px){.side-panel,.toolbar-action-btn span,.toolbar-mic-btn span,.tutor-badge-subject{display:none}}.tutor-badge{display:flex;align-items:center;gap:8px;padding:4px 12px 4px 10px;border-radius:20px;background:linear-gradient(135deg,rgba(79,70,229,.08),rgba(99,102,241,.12));border:1px solid rgba(79,70,229,.18)}.tutor-badge-name{font-size:12px;font-weight:700;color:var(--primary,#4f46e5);white-space:nowrap}.tutor-badge-subject{font-size:10px;font-weight:600;color:var(--text-muted,#64748b);background:rgba(255,255,255,.7);padding:1px 8px;border-radius:10px;white-space:nowrap}