:root{--bg-primary: #0a0e1a;--bg-secondary: #111827;--bg-card: #1a1f35;--bg-card-hover: #222845;--bg-elevated: #252b45;--bg-input: #151b2e;--bg-overlay: rgba(0, 0, 0, .7);--accent-primary: #0891b2;--accent-primary-hover: #06b6d4;--accent-primary-glow: rgba(8, 145, 178, .18);--accent-secondary: #8b5cf6;--accent-success: #10b981;--accent-warning: #f59e0b;--accent-danger: #ef4444;--accent-info: #3b82f6;--text-primary: #f1f5f9;--text-secondary: #94a3b8;--text-tertiary: #64748b;--text-inverse: #0a0e1a;--border-primary: rgba(255, 255, 255, .08);--border-hover: rgba(255, 255, 255, .15);--border-accent: rgba(6, 182, 212, .3);--gradient-card: linear-gradient(135deg, rgba(26, 31, 53, .9), rgba(17, 24, 39, .9));--gradient-header: linear-gradient(135deg, #0a0e1a 0%, #111827 100%);--gradient-accent: linear-gradient(135deg, #06b6d4, #8b5cf6);--gradient-success: linear-gradient(135deg, #10b981, #06b6d4);--gradient-danger: linear-gradient(135deg, #ef4444, #f59e0b);--shadow-sm: 0 1px 3px rgba(0, 0, 0, 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var(--border-primary);color:var(--text-primary);font-size:16px;font-family:var(--font-family);outline:none}.search-palette-input::placeholder{color:var(--text-tertiary)}.search-palette-results{max-height:360px;overflow-y:auto;padding:8px}.search-palette-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:var(--radius-sm);cursor:pointer;transition:background var(--transition-fast);color:var(--text-primary);font-size:13px}.search-palette-item:hover,.search-palette-item.active{background:var(--bg-card-hover)}.search-palette-item-icon{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:var(--radius-sm);background:var(--bg-input);flex-shrink:0}.search-palette-empty{padding:24px 16px;text-align:center;color:var(--text-tertiary);font-size:13px}.search-palette-footer{padding:8px 16px;border-top:1px solid var(--border-primary);display:flex;align-items:center;gap:12px;color:var(--text-tertiary);font-size:11px}.skeleton{background:linear-gradient(90deg,var(--bg-card) 25%,var(--bg-card-hover) 50%,var(--bg-card) 75%);background-size:200% 100%;animation:shimmer 1.5s ease-in-out infinite;border-radius:var(--radius-sm)}.skeleton-text{height:14px;width:100%;margin-bottom:8px}.skeleton-text.short{width:60%}.skeleton-text.xs{width:30%}.skeleton-avatar{width:40px;height:40px;border-radius:50%;flex-shrink:0}.skeleton-card{height:120px;border-radius:var(--radius-md)}.skeleton-row{display:flex;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid var(--border-primary)}.btn-loading{position:relative;pointer-events:none;opacity:.7}.btn-loading .btn-content{visibility:hidden}.btn-loading:after{content:"";position:absolute;width:16px;height:16px;border:2px solid transparent;border-top-color:currentColor;border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.op-loading{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--text-secondary);padding:4px 8px}.op-loading:before{content:"";width:14px;height:14px;border:2px solid var(--border-primary);border-top-color:var(--accent-primary);border-radius:50%;animation:spin .6s linear infinite}@keyframes pulseWarning{0%,to{box-shadow:0 8px 32px #f59e0b33}50%{box-shadow:0 8px 32px #f59e0b66}}.session-warning-pulse{animation:pulseWarning 2s ease-in-out infinite}.skeleton{background:linear-gradient(90deg,var(--bg-elevated) 25%,var(--bg-card-hover) 50%,var(--bg-elevated) 75%);background-size:200% 100%;animation:shimmer 1.5s ease-in-out infinite;border-radius:6px}.skeleton-text{height:14px;margin-bottom:8px}.skeleton-card{height:120px;border-radius:12px}.skeleton-avatar{width:32px;height:32px;border-radius:50%}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@media(max-width:1024px){.room-grid{grid-template-columns:repeat(2,1fr)!important}.room-sidebar{width:260px!important;min-width:260px!important}}@media(max-width:768px){.room-grid{grid-template-columns:1fr!important}.login-card{margin:16px;padding:24px!important;max-width:calc(100vw - 32px)!important}.room-sidebar{position:fixed!important;z-index:100;top:0;left:0;bottom:0;width:280px!important;min-width:280px!important;transform:translate(-100%);transition:transform .3s ease}.room-sidebar.open{transform:translate(0)}.viewer-container{padding:8px!important}.doc-card{padding:12px!important}.doc-card .doc-meta{flex-direction:column;gap:4px}.room-table th:nth-child(n+4),.room-table td:nth-child(n+4){display:none}.mfa-code-input{width:160px!important;font-size:20px!important;letter-spacing:6px!important}.empty-state{padding:24px 16px!important}}@media(max-width:480px){.login-card{padding:20px!important}.login-header h1{font-size:28px!important}.btn-lg{padding:12px 20px!important;font-size:14px!important}}