/* Reset and Base Styles */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.6;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        } 
        
        /* Product Page Specific Styles */
        .product-hero {
            background: linear-gradient(135deg, #1a5f7a 0%, #159895 100%);
            color: white;
            padding: 150px 0 60px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .product-hero::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.05' fill-rule='evenodd'/%3E%3C/svg%3E");
            opacity: 0.3;
        }
        
        .product-hero h1 {
            font-size: 3rem;
            margin-bottom: 1rem;
            position: relative;
        }
        
        .product-hero h1::after {
            content: "";
            display: block;
            width: 80px;
            height: 4px;
            background: #57C5B6;
            margin: 20px auto;
            border-radius: 2px;
        }
        
        .product-hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto;
            line-height: 1.6;
            position: relative;
        }
        
        .product-content {
            padding: 80px 0;
        }
        
        .product-section {
            margin-bottom: 80px;
        }
        
        .product-section:last-child {
            margin-bottom: 0;
        }
        
        .section-title {
            text-align: center;
            font-size: 2.5rem;
            margin-bottom: 1rem;
            color: #1a5f7a;
            position: relative;
        }
        
        .section-title::after {
            content: "";
            display: block;
            width: 60px;
            height: 3px;
            background: #57C5B6;
            margin: 15px auto 25px;
            border-radius: 2px;
        }
        
        .section-subtitle {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 40px;
            color: #666;
            font-size: 1.1rem;
            line-height: 1.6;
        }
        
        .products-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 40px;
            margin-top: 40px;
        }
        
        .product-card {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border-top: 4px solid #1a5f7a;
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        
        .product-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        
        .product-visual {
            height: 250px;
            background: #f8f9fa;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }
        
        .product-image {
            max-width: 90%;
            max-height: 90%;
            object-fit: contain;
        }
        
        .product-badge {
            position: absolute;
            top: 15px;
            right: 15px;
            background: #57C5B6;
            color: white;
            padding: 5px 10px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        
        .product-info {
            padding: 25px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }
        
        .product-info h3 {
            font-size: 1.4rem;
            margin-bottom: 10px;
            color: #1a5f7a;
        }
        
        .product-category {
            display: inline-block;
            background: #e9f7f5;
            color: #159895;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 15px;
        }
        
        .product-description {
            color: #666;
            line-height: 1.6;
            margin-bottom: 15px;
        }
        
        .product-specs {
            margin-bottom: 20px;
        }
        
        .spec-item {
            display: flex;
            margin-bottom: 8px;
        }
        
        .spec-label {
            font-weight: 600;
            color: #555;
            min-width: 120px;
        }
        
        .spec-value {
            color: #666;
        }
        
        .product-actions {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: auto;
        }
        
        .btn-outline {
            background: transparent;
            border: 2px solid #1a5f7a;
            color: #1a5f7a;
            padding: 10px 15px;
            border-radius: 5px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-align: center;
            text-decoration: none;
            display: inline-block;
        }
        
        .btn-outline:hover {
            background: #1a5f7a;
            color: white;
        }
        
        .btn-primary {
            background: #1a5f7a;
            border: 2px solid #1a5f7a;
            color: white;
            padding: 10px 15px;
            border-radius: 5px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-align: center;
            text-decoration: none;
            display: inline-block;
        }
        
        .btn-primary:hover {
            background: #159895;
            border-color: #159895;
        }
        
        .categories-filter {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }
        
        .category-btn {
            background: white;
            border: 2px solid #1a5f7a;
            color: #1a5f7a;
            padding: 10px 20px;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .category-btn.active, .category-btn:hover {
            background: #1a5f7a;
            color: white;
        }
        
        /* Popup Styles */
        .popup-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.7);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 2000;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }
        
        .popup-overlay.active {
            opacity: 1;
            visibility: visible;
        }
        
        .popup {
            background: white;
            border-radius: 10px;
            width: 90%;
            max-width: 900px;
            max-height: 90vh;
            overflow-y: auto;
            position: relative;
            transform: scale(0.9);
            transition: transform 0.3s ease;
        }
        
        .popup-overlay.active .popup {
            transform: scale(1);
        }
        
        .popup-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 30px;
            border-bottom: 1px solid #eee;
        }
        
        .popup-title {
            font-size: 1.8rem;
            color: #1a5f7a;
            margin: 0;
        }
        
        .popup-close {
            background: #1a5f7a;
            color: white;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            border: none;
            font-size: 1.2rem;
        }
        
        .popup-content {
            padding: 30px;
        }
        
        /* Product Details Popup */
        .product-details-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }
        
        .product-details-visual {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        
        .product-details-image {
            width: 100%;
            border-radius: 5px;
        }
        
        .product-details-info {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        
        .details-section {
            margin-bottom: 20px;
        }
        
        .details-section h3 {
            color: #1a5f7a;
            margin-bottom: 10px;
            font-size: 1.3rem;
        }
        
        /* 3D Model Popup */
        .model-popup-content {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        
        .model-viewer-container {
            width: 100%;
            height: 400px;
            background: #f8f9fa;
            border-radius: 5px;
            position: relative;
        }
        
        .model-controls {
            position: absolute;
            bottom: 15px;
            left: 15px;
            display: flex;
            gap: 10px;
            z-index: 10;
        }
        
        .model-control {
            background: rgba(26, 95, 122, 0.8);
            color: white;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            border: none;
        }
        
        .model-loading {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            height: 100%;
            color: #1a5f7a;
        }
        
        /* Quote Popup */
        .quote-form {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        
        .form-group {
            margin-bottom: 15px;
        }
        
        .form-group.full-width {
            grid-column: 1 / -1;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 5px;
            font-weight: 600;
            color: #555;
        }
        
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 10px;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
        }
        
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }
        
        .form-submit {
            grid-column: 1 / -1;
            text-align: center;
        }
        
        /* Responsive Design */
        @media (max-width: 992px) {
            .products-grid {
                grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            }
            
            .footer-content {
                grid-template-columns: 1fr 1fr;
            }
            
            .product-details-content {
                grid-template-columns: 1fr;
            }
        }
        
        @media (max-width: 768px) {
            .product-hero h1 {
                font-size: 2.5rem;
            }
            
            .product-hero p {
                font-size: 1.1rem;
            }
            
            .section-title {
                font-size: 2rem;
            }
            
            .products-grid {
                grid-template-columns: 1fr;
            }
            
            .footer-content {
                grid-template-columns: 1fr;
            }
            
            .quote-form {
                grid-template-columns: 1fr;
            }
            
            nav ul {
                display: none;
            }
            
            .mobile-toggle {
                display: block;
            }
            
            .popup {
                width: 95%;
                padding: 15px;
            }
            
            .popup-header {
                padding: 15px 20px;
            }
            
            .popup-content {
                padding: 20px;
            }
            
            .product-actions {
                flex-direction: column;
            }
        }