* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        :root {
            --primary: #0a1628;
            --secondary: #1e3a5f;
            --accent: #00d4ff;
            --light: #f0f8ff;
            --dark: #030b1a;
            --gradient: linear-gradient(135deg, #0a1628 0%, #1e3a5f 100%);
            --text: #e0e0e0;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: var(--primary);
            color: var(--text);
            line-height: 1.6;
            overflow-x: hidden;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(10, 22, 40, 0.95);
            backdrop-filter: blur(10px);
            z-index: 1000;
            transition: all 0.3s ease;
        }
        
        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        
        .logo {
            font-size: 24px;
            font-weight: bold;
            color: var(--accent);
            text-decoration: none;
            letter-spacing: 1px;
        }
        
        .menu {
            display: flex;
            list-style: none;
        }
        
        .menu li {
            margin-left: 30px;
        }
        
        .menu a {
            color: var(--text);
            text-decoration: none;
            transition: color 0.3s ease;
            position: relative;
        }
        
        .menu a:hover {
            color: var(--accent);
        }
        
        .menu a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width 0.3s ease;
        }
        
        .menu a:hover::after {
            width: 100%;
        }
        
        .burger {
            display: none;
            flex-direction: column;
            cursor: pointer;
        }
        
        .burger span {
            width: 25px;
            height: 3px;
            background: var(--text);
            margin: 3px 0;
            transition: 0.3s;
        }
        
        .page-header {
            padding: 120px 0 60px;
            background: var(--gradient);
            text-align: center;
        }
        
        .page-header h1 {
            font-size: 3rem;
            margin-bottom: 20px;
            color: var(--light);
            text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
        }
        
        .page-header p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto;
        }
        
        main {
            padding: 60px 0;
        }
        
        .products-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 30px;
            margin-bottom: 60px;
        }
        
        .product-card {
            background: var(--secondary);
            border-radius: 10px;
            overflow: hidden;
            transition: all 0.3s ease;
            position: relative;
        }
        
        .product-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 212, 255, 0.2);
        }
        
        .product-image {
            height: 200px;
            overflow: hidden;
        }
        
        .product-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        
        .product-card:hover .product-image img {
            transform: scale(1.1);
        }
        
        .product-content {
            padding: 25px;
        }
        
        .product-content h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            color: var(--light);
        }
        
        .product-content p {
            margin-bottom: 20px;
        }
        
        .product-price {
            font-size: 1.8rem;
            font-weight: bold;
            color: var(--accent);
            margin-bottom: 20px;
        }
        
        .btn {
            display: inline-block;
            padding: 12px 30px;
            background: var(--accent);
            color: var(--dark);
            text-decoration: none;
            border-radius: 30px;
            font-weight: bold;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
            z-index: 1;
            border: none;
            cursor: pointer;
        }
        
        .btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(255, 255, 255, 0.2);
            transform: translateX(-100%);
            transition: transform 0.3s ease;
            z-index: -1;
        }
        
        .btn:hover::before {
            transform: translateX(0);
        }
        
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 212, 255, 0.3);
        }
        
        .filter-section {
            margin-bottom: 40px;
        }
        
        .filter-buttons {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 15px;
        }
        
        .filter-btn {
            padding: 10px 20px;
            background: var(--secondary);
            color: var(--text);
            border: 2px solid transparent;
            border-radius: 30px;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .filter-btn:hover,
        .filter-btn.active {
            background: var(--accent);
            color: var(--dark);
        }
        
        .modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.8);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 2000;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }
        
        .modal.show {
            opacity: 1;
            visibility: visible;
        }
        
        .modal-content {
            background: var(--secondary);
            width: 90%;
            max-width: 600px;
            max-height: 90vh;
            overflow-y: auto;
            border-radius: 10px;
            position: relative;
            transform: scale(0.8);
            transition: transform 0.3s ease;
        }
        
        .modal.show .modal-content {
            transform: scale(1);
        }
        
        .modal-close {
            position: absolute;
            top: 15px;
            right: 15px;
            width: 30px;
            height: 30px;
            background: var(--accent);
            color: var(--dark);
            border: none;
            border-radius: 50%;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            transition: all 0.3s ease;
        }
        
        .modal-close:hover {
            transform: rotate(90deg);
        }
        
        .modal-header {
            padding: 20px;
            border-bottom: 1px solid var(--primary);
        }
        
        .modal-header h2 {
            color: var(--light);
        }
        
        .modal-body {
            padding: 20px;
        }
        
        .modal-body h3 {
            color: var(--light);
            margin: 20px 0 10px;
        }
        
        .modal-body ul {
            margin-left: 20px;
            margin-bottom: 20px;
        }
        
        .modal-footer {
            padding: 20px;
            border-top: 1px solid var(--primary);
            display: flex;
            justify-content: flex-end;
        }
        
        footer {
            background: var(--dark);
            padding: 50px 0 20px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        
        .footer-column h3 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            color: var(--light);
        }
        
        .footer-column ul {
            list-style: none;
        }
        
        .footer-column ul li {
            margin-bottom: 10px;
        }
        
        .footer-column a {
            color: var(--text);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        
        .footer-column a:hover {
            color: var(--accent);
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid var(--secondary);
            font-size: 0.9rem;
            color: var(--text);
        }
        
        @media (max-width: 768px) {
            .menu {
                position: fixed;
                top: -100%;
                left: 0;
                width: 100%;
                background: var(--primary);
                flex-direction: column;
                padding: 20px;
                transform: translateY(-100%);
                transition: transform 0.3s ease;
            }
            
            .menu.active {
                transform: translateY(0);
                top: 68px;
            }
            
            .menu li {
                margin: 10px 0;
            }
            
            .burger {
                display: flex;
            }
            
            .page-header h1 {
                font-size: 2.5rem;
            }
            
            .products-grid {
                grid-template-columns: 1fr;
            }
        }