:root {
            --primary-color: #2e7d32;
            --secondary-color: #c8e6c9;
            --accent-color: #1b5e20;
            --light-gray: #f8f9fa;
            --border-color: #eaeaea;
            --text-color: #333;
            --text-muted: #6c757d;
            --success-color: #4caf50;
            --warning-color: #ff9800;
            --danger-color: #f44336;
            --info-color: #2196f3;
            --health-color: #43a047;
            --calc-color: #e91e63;
        }
       .page-header {
            background: linear-gradient(135deg, rgba(200, 230, 201, 0.4) 0%, rgba(46, 125, 50, 0.4) 100%);
            padding: 1.5rem 0;
            margin-bottom: 2rem;
            border-bottom: 1px solid rgba(46, 125, 50, 0.2);
            position: relative;
            overflow: hidden;  color: var(--text-color);
        }
        .breadcrumb {
            background-color: transparent;
            padding: 0.5rem 0;
            margin-bottom: 0.5rem;
        }
        .breadcrumb-item a {
            color: var(--text-muted);
            text-decoration: none;
        }
        .breadcrumb-item.active {
            color: var(--text-color);
        }
        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.15);
        }
        .result-value {
            font-size: 2.5rem;
            font-weight: 700;
            text-align: center;
            margin: 1rem 0;
            color: var(--health-color);
        }
        .result-category {
            text-align: center;
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 1rem;
            padding: 0.5rem;
            border-radius: 6px;
        }
        .category-underweight { background-color: rgba(33, 150, 243, 0.1); color: #1976d2; }
        .category-healthy { background-color: rgba(76, 175, 80, 0.1); color: var(--success-color); }
        .category-overweight { background-color: rgba(255, 152, 0, 0.1); color: #f57c00; }
        .category-obese { background-color: rgba(244, 67, 54, 0.1); color: var(--danger-color); }
        .health-box {
            background-color: rgba(67, 160, 71, 0.05);
            border-left: 3px solid var(--health-color);
            padding: 1rem;
            border-radius: 0 4px 4px 0;
            margin: 1.5rem 0;
        }
        @media (max-width: 768px) {
            .result-value {
                font-size: 2rem;
            }
        }
        .measurement-examples {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .example-btn {
            background-color: rgba(46, 125, 50, 0.1);
            border: 1px solid rgba(46, 125, 50, 0.2);
            border-radius: 4px;
            padding: 0.5rem 0.75rem;
            font-size: 0.9rem;
            color: var(--primary-color);
            cursor: pointer;
            transition: all 0.2s;
        }
        .example-btn:hover {
            background-color: rgba(46, 125, 50, 0.2);
            transform: translateY(-2px);
        }
        .health-indicator {
            display: flex;
            align-items: center;
            margin: 1rem 0;
            padding: 1rem;
            background-color: rgba(255,255,255,0.8);
            border-radius: 6px;
            border: 1px solid var(--border-color);
        }
        .indicator-color {
            width: 20px;
            height: 20px;
            border-radius: 4px;
            margin-right: 1rem;
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
        }
        .comparison-table th, .comparison-table td {
            padding: 0.75rem;
            text-align: left;
            border: 1px solid var(--border-color);
        }
        .comparison-table th {
            background-color: var(--light-gray);
            font-weight: 600;
        }
        .comparison-table tr:nth-child(even) {
            background-color: rgba(46, 125, 50, 0.05);
        }
        .categories-visual {
            display: flex;
            height: 30px;
            border-radius: 15px;
            overflow: hidden;
            margin: 1.5rem 0;
            border: 1px solid var(--border-color);
        }
        .category-segment {
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 600;
            font-size: 0.8rem;
        }
        .segment-underweight { background-color: #2196f3; }
        .segment-healthy { background-color: #4caf50; }
        .segment-overweight { background-color: #ff9800; }
        .segment-obese { background-color: #f44336; }
        .user-marker {
            position: relative;
            height: 40px;
            width: 40px;
            background-color: #333;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
            margin-top: -5px;
            z-index: 10;
            box-shadow: 0 2px 4px rgba(0,0,0,0.3);
        }
        .gender-toggle {
            display: flex;
            border: 1px solid #ddd;
            border-radius: 6px;
            overflow: hidden;
            margin-bottom: 1rem;
        }
        .gender-option {
            flex: 1;
            text-align: center;
            padding: 0.75rem;
            cursor: pointer;
            transition: all 0.3s;
            background-color: white;
        }
        .gender-option.active {
            background-color: var(--primary-color);
            color: white;
        }
        .recommendation-card {
            background-color: white;
            border-radius: 8px;
            padding: 1.5rem;
            border: 1px solid var(--border-color);
            margin-bottom: 1rem;
            box-shadow: 0 2px 4px rgba(0,0,0,0.05);
        }
        .recommendation-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: rgba(46, 125, 50, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 1rem;
            color: var(--primary-color);
        }