:root{--primary: #0f766e;--primary-light: #14b8a6;--primary-dark: #0d5d56;--primary-50: #f0fdfa;--primary-100: #ccfbf1;--primary-200: #99f6e4;--primary-500: #14b8a6;--primary-600: #0d9488;--primary-700: #0f766e;--primary-800: #115e59;--primary-900: #134e4a;--gray-50: #f8fafc;--gray-100: #f1f5f9;--gray-200: #e2e8f0;--gray-300: #cbd5e1;--gray-400: #94a3b8;--gray-500: #64748b;--gray-600: #475569;--gray-700: #334155;--gray-800: #1e293b;--gray-900: #0f172a;--success: #22c55e;--success-light: #dcfce7;--warning: #f59e0b;--warning-light: #fef3c7;--danger: #ef4444;--danger-light: #fee2e2;--info: #3b82f6;--info-light: #dbeafe;--bg-body: #f0f4f8;--bg-card: #ffffff;--bg-sidebar: #ffffff;--bg-header: #ffffff;--bg-hover: #f1f5f9;--bg-active: #f0fdfa;--bg-modal-overlay: rgba(15, 23, 42, .5);--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #94a3b8;--text-inverse: #ffffff;--border: #e2e8f0;--border-light: #f1f5f9;--border-focus: #0f766e;--shadow-xs: 0 1px 2px rgba(0, 0, 0, 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var(--primary);z-index:1}.timeline-dot.system{border-color:var(--gray-400)}.timeline-dot.comment{border-color:var(--info);background:var(--info)}.timeline-dot.status{border-color:var(--success);background:var(--success)}.timeline-dot.transfer{border-color:var(--warning);background:var(--warning)}.timeline-dot.escalation{border-color:var(--danger);background:var(--danger)}.timeline-content{background:var(--gray-50);border-radius:var(--radius-md);padding:12px 16px}.timeline-header{display:flex;align-items:center;gap:8px;margin-bottom:6px}.timeline-user{font-weight:600;font-size:13px}.timeline-time{font-size:12px;color:var(--text-muted);margin-right:auto}.timeline-body{font-size:14px;color:var(--text-secondary);line-height:1.6}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary-50) 0%,var(--bg-body) 50%,var(--primary-100) 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