/* Custom overrides for BMI calculator */
        .bmi-units {
            display: flex;
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-lg);
        }
        
        .unit-selector {
            flex: 1;
            text-align: center;
        }
        
        .unit-selector input[type="radio"] {
            margin-right: var(--spacing-xs);
            width: auto;
        }
        
        .bmi-inputs {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-md);
        }
        
        .bmi-result {
            text-align: center;
            margin: var(--spacing-lg) 0;
        }
        
        .bmi-value {
            font-size: 2.5em;
            font-weight: bold;
            color: var(--accent-color);
            margin: var(--spacing-sm) 0;
        }
        
        .bmi-category {
            font-size: 1.2em;
            font-weight: 600;
            padding: var(--spacing-sm) var(--spacing-md);
            border-radius: var(--radius-md);
            display: inline-block;
        }
        
        .category-underweight { background-color: #e3f2fd; color: #1976d2; }
        .category-normal { background-color: #e8f5e8; color: #2e7d32; }
        .category-overweight { background-color: #fff3e0; color: #f57c00; }
        .category-obese { background-color: #ffebee; color: #d32f2f; }
        
        @media (max-width: 768px) {
            .bmi-inputs {
                grid-template-columns: 1fr;
            }
            
            .bmi-units {
                flex-direction: column;
                text-align: center;
            }
        }

        /* Cross-linking styles */
        .cross-links-section {
            max-width: 1000px;
            margin: 40px auto 20px;
            background-color: #ffffff;
            border-radius: 12px;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            padding: 30px;
        }
        
        .cross-links-section h2 {
            text-align: center;
            color: #2c3e50;
            margin-bottom: 30px;
            font-size: 1.8em;
            border-bottom: 3px solid #3498db;
            padding-bottom: 15px;
        }
        
        .cross-link-category {
            margin-bottom: 30px;
        }
        
        .cross-link-category h3 {
            color: #2c3e50;
            margin-bottom: 15px;
            font-size: 1.3em;
            padding-left: 10px;
            border-left: 4px solid #3498db;
        }
        
        .cross-link-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 15px;
        }
        
        .cross-link-card {
            display: block;
            text-decoration: none;
            color: #34495e;
            background: #f8f9fa;
            border: 2px solid #e9ecef;
            border-radius: 8px;
            padding: 15px;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        
        .cross-link-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(52, 152, 219, 0.15);
            border-color: #3498db;
            background: #e3f2fd;
            color: #2c3e50;
        }
        
        .cross-link-card span {
            font-weight: 500;
            display: block;
            line-height: 1.4;
        }
        
        .cross-link-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: #3498db;
            transform: scaleY(0);
            transition: transform 0.3s ease;
        }
        
        .cross-link-card:hover::before {
            transform: scaleY(1);
        }
        
        @media (max-width: 768px) {
            .cross-links-section {
                margin: 20px;
                padding: 20px;
            }
            
            .cross-link-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            
            .cross-link-card {
                padding: 12px;
            }
        }