* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Roboto', sans-serif;
        }

        :root {
            --primary-color: #1976D2;
            --secondary-color: #FF4081;
            --dark-color: #212121;
            --light-color: #f5f5f5;
        }

        /* Navigation */
        nav {
            background: var(--primary-color);
            padding: 1rem 5%;
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 99;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        }

        .nav-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1200px;
            margin: 0 auto;
        }

        .logo {
            color: white;
            font-size: 1.5rem;
            text-decoration: none;
            display: flex;
            align-items: center;
        }

        .nav-links {
            display: flex;
            gap: 2rem;
        }

        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 500;
        }

        /* Hero Section */
        .hero {
            position: relative;
            height: 80vh;
            background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)),
                        url(https://www.itworks.id/wp-content/uploads/2018/09/lenovo-yoga-c630-wos-1000x563.jpg);
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            padding: 0 5%;
            margin-top: 60px;
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }

        .hero.show {
            opacity: 1;
            transform: translateY(0);
        }

        .hero-content {
            max-width: 1200px;
            margin: 0 auto;
            color: white;
            position: relative;
            z-index: 1;
        }

        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 1rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
            line-height: 1.2;
        }

        .hero p {
            font-size: 1.2rem;
            max-width: 600px;
            text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
            margin-bottom: 2rem;
        }

        /* About Section */
        .about {
            padding: 5rem 5%;
            background: white;
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }

        .about.show {
            opacity: 1;
            transform: translateY(0);
        }

        .about-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            gap: 3rem;
            align-items: center;
        }

        .owner-photo {
            flex: 1;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
        }

        .owner-photo img {
            width: 100%;
            height: auto;
            display: block;
        }

        .about-content {
            flex: 1.5;
        }

        /* Products Section */
        .products {
            padding: 5rem 5%;
            background: var(--light-color);
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }

        .products.show {
            opacity: 1;
            transform: translateY(0);
        }

        .products-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        .product-card {
            background: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
            transition: transform 0.3s;
        }

        .product-card:hover {
            transform: translateY(-5px);
        }

        .product-image {
            height: 200px;
            background: #f0f0f0;
            overflow: hidden;
        }

        .product-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .product-info {
            padding: 1.5rem;
            text-align: center;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .product-actions {
            display: flex;
            gap: 0.5rem;
            justify-content: center;
            margin-top: 1rem;
        }

        .btn {
            background: var(--secondary-color);
            color: white;
            padding: 1rem 2rem;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            font-size: 1rem;
            transition: opacity 0.3s;
        }

        .btn:hover {
            opacity: 0.9;
        }

        .btn-product {
            padding: 0.6rem 1.2rem;
            font-size: 0.9rem;
            border-radius: 20px;
            display: flex;
            align-items: center;
            gap: 0.3rem;
            transition: all 0.3s;
        }

        .btn-detail {
            background: var(--primary-color);
            color: white;
            border: 1px solid var(--primary-color);
        }

        .btn-share {
            background: white;
            color: var(--dark-color);
            border: 1px solid #ddd;
        }

        .btn-share:hover {
            background: #f5f5f5;
        }

        .more-products {
            text-align: center;
            margin-top: 3rem;
        }

        /* Contact Section */
        .contact {
            padding: 5rem 5%;
            background: white;
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }

        .contact.show {
            opacity: 1;
            transform: translateY(0);
        }

        .contact-container {
            display: flex;
            gap: 3rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        .contact-buttons {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .contact-btn {
            display: flex;
            align-items: center;
            padding: 1rem 2rem;
            border-radius: 25px;
            text-decoration: none;
            color: white;
            transition: transform 0.3s, box-shadow 0.3s;
            gap: 1rem;
        }

        .contact-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 4px 8px rgba(0,0,0,0.2);
        }

        .contact-btn i {
            font-size: 1.5rem;
        }

        .btn-whatsapp { background: #25D366; }
        .btn-facebook { background: #1877F2; }
        .btn-instagram { background: #E4405F; }
        .btn-gmail { background: #EA4335; }
        .btn-ecatalog { background: #6A1B9A; }

        .contact-btn-text {
            display: flex;
            flex-direction: column;
        }

        .contact-btn small {
            font-size: 0.8rem;
            opacity: 0.9;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .hero h1 {
                font-size: 2.2rem;
            }
            
            .hero p {
                font-size: 1rem;
            }

            .about-container {
                flex-direction: column;
            }
            
            .owner-photo {
                max-width: 400px;
            }
            
            .products-grid {
                grid-template-columns: 1fr 1fr;
            }

            .contact-container {
                flex-direction: column;
            }
            
            .contact-buttons {
                order: -1;
            }
        }

        @media (max-width: 480px) {
            .products-grid {
                grid-template-columns: 1fr;
            }
            
            .product-actions {
                flex-direction: column;
            }
            
            .btn-product {
                width: 100%;
                justify-content: center;
            }
        }