* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            line-height: 1.6;
            color: #333;
            background: #ffffff;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header */
        header {
            background: #fff;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
        }

        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }

        .logo {
            font-size: 2rem;
            font-weight: bold;
            color: #2563eb;
            text-decoration: none;
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }

        .nav-links a {
            text-decoration: none;
            color: #333;
            font-weight: 500;
            transition: color 0.3s ease;
        }

        .nav-links a:hover {
            color: #2563eb;
        }

        .cta-button {
            background: #2563eb;
            color: white;
            padding: 0.75rem 1.5rem;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            transition: background 0.3s ease, transform 0.2s ease;
        }

        .cta-button:hover {
            background: #1d4ed8;
            transform: translateY(-2px);
        }

        /* Hero Section */
        .hero {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 120px 0 80px;
            text-align: center;
            margin-top: 80px;
        }

        .hero h1 {
            font-size: 3.5rem;
            font-weight: bold;
            margin-bottom: 1rem;
            line-height: 1.2;
        }

        .hero p {
            font-size: 1.3rem;
            margin-bottom: 2rem;
            opacity: 0.9;
        }

        .hero-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-primary {
            background: #fff;
            color: #2563eb;
            padding: 1rem 2rem;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .btn-secondary {
            background: transparent;
            color: white;
            padding: 1rem 2rem;
            border: 2px solid white;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            transition: background 0.3s ease;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.2);
        }

        .btn-secondary:hover {
            background: white;
            color: #2563eb;
        }

        /* Features Section */
        .features {
            padding: 80px 0;
            background: #f8fafc;
        }

        .section-title {
            text-align: center;
            font-size: 2.5rem;
            margin-bottom: 3rem;
            color: #1e293b;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .feature-card {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.1);
            text-align: center;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 40px rgba(0,0,0,0.15);
        }

        .feature-icon {
            width: 60px;
            height: 60px;
            background: #2563eb;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            font-size: 1.5rem;
            color: white;
        }

        .feature-card h3 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
            color: #1e293b;
        }

        .feature-card p {
            color: #64748b;
        }

        /* Products Section */
        .products {
            padding: 80px 0;
        }

        .products-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .product-card {
            background: white;
            border: 1px solid #e2e8f0;
            border-radius: 12px;
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .product-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0,0,0,0.1);
        }

        .product-image {
            height: 200px;
            background: linear-gradient(45deg, #f1f5f9, #e2e8f0);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 3rem;
            color: #94a3b8;
        }

        .product-content {
            padding: 1.5rem;
        }

        .product-card h3 {
            font-size: 1.3rem;
            margin-bottom: 0.5rem;
            color: #1e293b;
        }

        .product-card p {
            color: #64748b;
            margin-bottom: 1rem;
        }

        .product-price {
            font-size: 1.5rem;
            font-weight: bold;
            color: #2563eb;
            margin-bottom: 1rem;
        }

        /* Newsletter Section */
        .newsletter {
            background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
            color: white;
            padding: 80px 0;
            text-align: center;
        }

        .newsletter h2 {
            font-size: 2.5rem;
            margin-bottom: 1rem;
        }

        .newsletter p {
            font-size: 1.2rem;
            margin-bottom: 2rem;
            opacity: 0.9;
        }

        .newsletter-form {
            display: flex;
            max-width: 500px;
            margin: 0 auto;
            gap: 1rem;
            flex-wrap: wrap;
            justify-content: center;
        }

        .newsletter-form input {
            flex: 1;
            min-width: 250px;
            padding: 1rem;
            border: none;
            border-radius: 8px;
            font-size: 1rem;
        }

        .newsletter-form button {
            background: #2563eb;
            color: white;
            padding: 1rem 2rem;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s ease;
        }

        .newsletter-form button:hover {
            background: #1d4ed8;
        }

        /* Footer */
        footer {
            background: #1e293b;
            color: white;
            padding: 40px 0;
            text-align: center;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-section h3 {
            margin-bottom: 1rem;
            color: #2563eb;
        }

        .footer-section ul {
            list-style: none;
        }

        .footer-section ul li {
            margin-bottom: 0.5rem;
        }

        .footer-section ul li a {
            color: #94a3b8;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .footer-section ul li a:hover {
            color: white;
        }

        .footer-bottom {
            border-top: 1px solid #334155;
            padding-top: 2rem;
            color: #94a3b8;
        }

        /* Mobile Menu */
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .mobile-menu-toggle {
                display: block;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: white;
                box-shadow: 0 2px 10px rgba(0,0,0,0.1);
                flex-direction: column;
                padding: 1rem 0;
            }

            .nav-links.active {
                display: flex;
            }

            .hero h1 {
                font-size: 2.5rem;
            }

            .hero p {
                font-size: 1.1rem;
            }

            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }

            .newsletter-form {
                flex-direction: column;
            }

            .newsletter-form input {
                min-width: auto;
            }
        }