.product-detail-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
        }
        
        .product-gallery {
            position: relative;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0,0,0,0.1);
        }
        
        .main-image {
            width: 100%;
            height: 400px;
            object-fit: cover;
        }
        
        .image-thumbnails {
            display: flex;
            gap: 10px;
            margin-top: 15px;
            overflow-x: auto;
        }
        
        .thumbnail {
            width: 80px;
            height: 80px;
            object-fit: cover;
            border-radius: 8px;
            cursor: pointer;
            opacity: 0.7;
            transition: opacity 0.3s ease;
        }
        
        .thumbnail.active,
        .thumbnail:hover {
            opacity: 1;
        }
        
        .product-info {
            padding: 20px 0;
        }
        
        .product-title {
            font-size: 2rem;
            font-weight: 700;
            color: #2c3e50;
            margin-bottom: 10px;
        }
        
        .product-subtitle {
            font-size: 1.1rem;
            color: #6c757d;
            margin-bottom: 20px;
        }
        
        .pricing-section {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 25px;
            border-radius: 15px;
            margin: 20px 0;
        }
        
        .price-display {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        
        .price-tiers {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
            gap: 15px;
            margin-top: 20px;
        }
        
        .price-tier {
            background: rgba(255,255,255,0.1);
            padding: 12px;
            border-radius: 8px;
            text-align: center;
        }
        
        .tier-qty {
            font-size: 0.9rem;
            opacity: 0.9;
        }
        
        .tier-price {
            font-size: 1.2rem;
            font-weight: 600;
        }
        
        .tier-discount {
            font-size: 0.8rem;
            color: #f39c12;
        }
        
        .customization-section {
            background: white;
            border-radius: 15px;
            padding: 25px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.1);
            margin: 20px 0;
        }
        
        .section-title {
            font-size: 1.5rem;
            font-weight: 600;
            color: #2c3e50;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .customization-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }
        
        .custom-option-group {
            background: #f8f9fa;
            padding: 20px;
            border-radius: 10px;
            border: 2px solid transparent;
            transition: all 0.3s ease;
        }
        
        .custom-option-group:hover {
            border-color: #3498db;
            transform: translateY(-2px);
        }
        
        .option-title {
            font-weight: 600;
            color: #2c3e50;
            margin-bottom: 15px;
            font-size: 1.1rem;
        }
        
        .option-preview {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 15px;
        }
        
        .preview-item {
            background: #3498db;
            color: white;
            padding: 4px 12px;
            border-radius: 15px;
            font-size: 0.8rem;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .preview-item:hover {
            background: #2980b9;
            transform: scale(1.05);
        }
        
        .preview-item.selected {
            background: #e74c3c;
        }
        
        .specifications-table {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0,0,0,0.1);
        }
        
        .spec-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            padding: 15px 20px;
            border-bottom: 1px solid #ecf0f1;
        }
        
        .spec-row:last-child {
            border-bottom: none;
        }
        
        .spec-label {
            font-weight: 600;
            color: #2c3e50;
        }
        
        .spec-value {
            color: #6c757d;
        }
        
        .action-buttons {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 15px;
            margin-top: 30px;
        }
        
        .btn-action {
            padding: 15px 25px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 1rem;
            text-decoration: none;
            text-align: center;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
        }
        
        .btn-primary-custom {
            background: #3498db;
            color: white;
        }
        
        .btn-primary-custom:hover {
            background: #2980b9;
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(52, 152, 219, 0.4);
        }
        
        .btn-success-custom {
            background: #27ae60;
            color: white;
        }
        
        .btn-success-custom:hover {
            background: #229954;
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(39, 174, 96, 0.4);
        }
        
        .btn-warning-custom {
            background: #f39c12;
            color: white;
        }
        
        .btn-warning-custom:hover {
            background: #e67e22;
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(243, 156, 18, 0.4);
        }
        
        .sample-info {
            background: #e8f5e8;
            border: 2px solid #27ae60;
            border-radius: 10px;
            padding: 20px;
            margin: 20px 0;
        }
        
        .lead-time-calculator {
            background: #fff3cd;
            border: 2px solid #ffc107;
            border-radius: 10px;
            padding: 20px;
            margin: 20px 0;
        }
        
        .calculator-controls {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 15px;
            margin: 15px 0;
        }
        
        .real-time-pricing {
            position: sticky;
            top: 20px;
            background: white;
            border-radius: 15px;
            padding: 25px;
            box-shadow: 0 8px 30px rgba(0,0,0,0.15);
            border: 3px solid #3498db;
        }
        
        .pricing-calculator {
            margin-top: 20px;
        }
        
        .calc-input-group {
            margin-bottom: 15px;
        }
        
        .calc-label {
            font-weight: 600;
            color: #2c3e50;
            margin-bottom: 8px;
            display: block;
        }
        
        .calc-result {
            background: #e8f4fd;
            border-radius: 8px;
            padding: 15px;
            margin-top: 15px;
        }
        
        .result-item {
            display: flex;
            justify-content: space-between;
            margin-bottom: 8px;
        }
        
        .result-total {
            font-weight: 700;
            font-size: 1.2rem;
            color: #e74c3c;
            border-top: 2px solid #3498db;
            padding-top: 10px;
            margin-top: 10px;
        }
        
        .customization-preview {
            position: fixed;
            bottom: 20px;
            right: 20px;
            background: #2c3e50;
            color: white;
            padding: 20px;
            border-radius: 15px;
            box-shadow: 0 8px 30px rgba(0,0,0,0.3);
            max-width: 300px;
            transform: translateX(400px);
            transition: transform 0.3s ease;
            z-index: 1000;
        }
        
        .customization-preview.show {
            transform: translateX(0);
        }
        
        .preview-title {
            font-weight: 600;
            margin-bottom: 15px;
        }
        
        .preview-item-list {
            margin-bottom: 15px;
        }
        
        .preview-item-list div {
            margin-bottom: 5px;
            font-size: 0.9rem;
        }
        
        @media (max-width: 768px) {
            .action-buttons {
                grid-template-columns: 1fr;
            }
            
            .customization-grid {
                grid-template-columns: 1fr;
            }
            
            .calculator-controls {
                grid-template-columns: 1fr;
            }
            
            .real-time-pricing {
                position: relative;
                top: auto;
            }
        }