*{margin:0;padding:0;box-sizing:border-box}:root{--primary: #2563eb;--primary-dark: #1d4ed8;--primary-light: #3b82f6;--success: #16a34a;--success-light: #22c55e;--danger: #dc2626;--danger-light: #ef4444;--warning: #f59e0b;--warning-light: #fbbf24;--bg-primary: #f3f4f6;--bg-secondary: #ffffff;--bg-tertiary: #f9fafb;--bg-hover: #e5e7eb;--bg-sidebar: #1f2937;--bg-sidebar-hover: #374151;--text-primary: #1f2937;--text-secondary: #4b5563;--text-muted: #6b7280;--text-light: #9ca3af;--text-sidebar: #d1d5db;--border-color: #e5e7eb;--border-light: #f3f4f6;--card-bg: #ffffff;--card-shadow: 0 1px 3px rgba(0, 0, 0, .1);--input-bg: #ffffff;--input-border: #d1d5db;--modal-overlay: rgba(0, 0, 0, .5);--gray-50: #f9fafb;--gray-100: #f3f4f6;--gray-200: #e5e7eb;--gray-300: #d1d5db;--gray-400: #9ca3af;--gray-500: #6b7280;--gray-600: #4b5563;--gray-700: #374151;--gray-800: #1f2937;--gray-900: #111827;--sidebar-width: 260px;--theme-transition: background-color .3s ease, color .3s ease, border-color .3s 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