:root{--bg: #f7f8fa;--surface: #ffffff;--border: #e2e5ea;--text: #1a1d23;--text-muted: #6b7280;--primary: #2563eb;--primary-dark: #1d4ed8;--danger: #dc2626;--success: #16a34a;--radius: 8px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}.container{max-width:1100px;margin:0 auto;padding:24px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 18px;border-radius:var(--radius);border:none;font-size:14px;font-weight:600;cursor:pointer;transition:background .15s ease}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-danger{background:var(--danger);color:#fff}.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text)}input,select{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius);font-size:14px;margin-bottom:12px}.form-label{display:block;font-size:13px;font-weight:600;color:var(--text-muted);margin-bottom:6px}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:12px;border-bottom:1px solid var(--border);font-size:14px}th{color:var(--text-muted);font-weight:600}.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600}.badge-pending{background:#fef3c7;color:#92400e}.badge-active{background:#dbeafe;color:#1e40af}.badge-completed{background:#dcfce7;color:#166534}.room{display:flex;height:100vh;background:#111318}.room-video-area{flex:1;position:relative;display:flex;align-items:center;justify-content:center}.room-video-area video{width:100%;height:100%;object-fit:cover}.local-video-preview{position:absolute;bottom:90px;right:24px;width:220px;border-radius:var(--radius);overflow:hidden;border:2px solid rgba(255,255,255,.2)}.room-controls{position:absolute;bottom:24px;left:50%;transform:translate(-50%);display:flex;gap:12px}.control-btn{width:52px;height:52px;border-radius:50%;border:none;background:#2a2d35;color:#fff;font-size:18px;cursor:pointer}.control-btn.active{background:var(--primary)}.control-btn.danger{background:var(--danger)}.record-btn{width:auto;min-width:52px;height:52px;border-radius:26px;padding:0 18px;display:inline-flex;align-items:center;gap:8px;background:#3a3d45}.record-btn-icon{color:#ff4d4d;font-size:16px}.record-btn-label{font-size:14px;font-weight:600;white-space:nowrap}.record-btn.active .record-btn-icon{color:#fff}.chat-panel{width:320px;background:var(--surface);border-left:1px solid var(--border);display:flex;flex-direction:column;transition:margin-right .2s ease}.chat-panel.closed{margin-right:-320px}.chat-messages{flex:1;overflow-y:auto;padding:16px}.chat-input{display:flex;padding:12px;border-top:1px solid var(--border);gap:8px}