body {
            box-sizing: border-box;
        }
        
        .font-playfair { font-family: 'Playfair Display', serif; }
        .font-inter { font-family: 'Inter', sans-serif; }
        .font-crimson { font-family: 'Crimson Text', serif; }
        
        .gradient-bg {
            background: #F8F8F8;
        }
        
        .hero-gradient {
            background: linear-gradient(135deg, rgba(47,47,47,0.9) 0%, rgba(74,74,74,0.7) 50%, rgba(192,192,192,0.3) 100%);
        }
        
        .card-hover {
            transition: all 0.3s ease;
        }
        
        .card-hover:hover {
            transform: translateY(-10px) scale(1.02);
            box-shadow: 0 20px 40px rgba(255, 103, 0, 0.3);
        }
        
        .glow-effect {
            box-shadow: 0 0 20px rgba(255, 103, 0, 0.5);
        }
        
        .btn-glow:hover {
            box-shadow: 0 0 30px rgba(255, 103, 0, 0.8);
            transform: scale(1.05);
        }
        
        .floating {
            animation: floating 3s ease-in-out infinite;
        }
        
        @keyframes floating {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-20px); }
        }
        
        .slide-in {
            opacity: 0;
            transform: translateX(-50px);
            transition: all 0.6s ease;
        }
        
        .slide-in.active {
            opacity: 1;
            transform: translateX(0);
        }
        
        .fade-in {
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.6s ease;
        }
        
        .fade-in.active {
            opacity: 1;
            transform: translateY(0);
        }
        
        .product-carousel {
            transform-style: preserve-3d;
        }
        
        .carousel-item {
            transition: all 0.5s ease;
        }
        
        .carousel-item.active {
            transform: scale(1.1) rotateY(0deg);
            z-index: 10;
        }
        
        .carousel-item:not(.active) {
            transform: scale(0.8) rotateY(15deg);
            opacity: 0.7;
        }
        
        .tech-counter {
            font-size: 2.5rem;
            font-weight: 900;
            color: #FF6700;
        }
        
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.8);
            z-index: 1000;
        }
        
        .modal.active {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .parallax {
            background-attachment: fixed;
            background-position: center;
            background-repeat: no-repeat;
            background-size: cover;
        }
        
        .page {
            display: none;
        }
        
        .page.active {
            display: block;
        }
        
        .nav-link {
            transition: all 0.3s ease;
        }
        
        .nav-link:hover {
            color: #FF6700;
            text-shadow: 0 0 10px rgba(255, 103, 0, 0.5);
        }
        
        .mobile-menu {
            transform: translateX(-100%);
            transition: transform 0.3s ease;
        }
        
        .mobile-menu.active {
            transform: translateX(0);
        }
        
        .cart-sidebar {
            position: fixed;
            top: 0;
            right: -400px;
            width: 400px;
            height: 100%;
            background: #1f2937;
            z-index: 1000;
            transition: right 0.3s ease;
            box-shadow: -5px 0 15px rgba(0,0,0,0.3);
        }
        
        .cart-sidebar.active {
            right: 0;
        }
        
        .cart-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.5);
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }
        
        .cart-overlay.active {
            opacity: 1;
            visibility: visible;
        }
        
        @media (max-width: 768px) {
            .tech-counter {
                font-size: 1.8rem;
            }
            
            .cart-sidebar {
                width: 100%;
                right: -100%;
            }
        }