:root{--primary-color:#4a90e2;--secondary-color:#6c757d;--success-color:#28a745;--danger-color:#dc3545;--warning-color:#ffc107;--info-color:#17a2b8;--dark-color:#259922;--light-color:#f8f9fa;--border-color:#dee2e6;--shadow:0 2px 4px rgba(0,0,0,0.1);--transition:all 0.3s ease}