:root {
            --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            --success-gradient: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
            --danger-gradient: linear-gradient(135deg, #eb3349 0%, #f45c43 100%);
            --warning-gradient: linear-gradient(135deg, #f2994a 0%, #f2c94c 100%);
            --text-primary: #1a202c;
            --text-secondary: #718096;
            --text-muted: #a0aec0;
            --bg-primary: #ffffff;
            --bg-secondary: #f7fafc;
            --bg-tertiary: #edf2f7;
            --border-light: #e2e8f0;
            --border-medium: #cbd5e0;
            --primary-color: #667eea;
            --primary-hover: #5a67d8;
            --success-color: #38ef7d;
            --danger-color: #eb3349;
            --warning-color: #f2994a;
        }