:root {
            --primary-color: #1a5f7a;
            --secondary-color: #2a9d8f;
            --accent-color: #e9c46a;
            --light-color: #f8f9fa;
            --dark-color: #264653;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            color: #333;
            line-height: 1.6;
            background-color: #f9f9f9;
            padding-top: 20px;
            padding-bottom: 50px;
        }
        
        .header-gradient {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
            padding: 2rem 0;
            border-radius: 10px;
            margin-bottom: 30px;
        }
        
        .breadcrumb {
            background-color: #e9ecef;
            padding: 0.75rem 1rem;
            border-radius: 0.375rem;
            margin-bottom: 30px;
        }
        
        .product-title {
            color: var(--primary-color);
            border-bottom: 2px solid rgba(26, 95, 122, 0.2);
            padding-bottom: 10px;
        }
        
        .certification-badge {
            background-color: var(--accent-color);
            color: var(--dark-color);
            padding: 8px 15px;
            border-radius: 20px;
            font-weight: 600;
            margin-right: 10px;
            margin-bottom: 10px;
            display: inline-block;
        }
        
        .contact-box {
            background-color: white;
            border-left: 5px solid var(--secondary-color);
            padding: 20px;
            border-radius: 5px;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        }
        
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
        }
        
        .btn-primary:hover {
            background-color: #155267;
            border-color: #155267;
        }
        
        .btn-success {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
        }
        
        .btn-success:hover {
            background-color: #248277;
            border-color: #248277;
        }
        
        footer {
            background-color: var(--dark-color);
            color: white;
            padding: 30px 0;
            margin-top: 50px;
        }