:root {
            --primary: #08569b;
            --secondary: #c65905;
            --dark: #111;
            --light: #fff;
            --gray: #f9f9f9;
        }
        * { box-sizing: border-box; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; margin: 0; line-height: 1.6; color: #333; }
        
        header { background: var(--light); border-bottom: 3px solid var(--primary); padding: 1rem; }
        .nav-container { display: flex; justify-content: space-between; align-items: center; max-width: 1200px; margin: 0 auto; }
        #logo { width: 245px; }
        nav ul { list-style: none; display: flex; gap: 20px; padding: 0; }
        nav a { text-decoration: none; color: var(--primary); font-weight: bold; }
        
        .hero { background: var(--primary); color: white; padding: 60px 20px; text-align: center; }
        
        .container { max-width: 1200px; margin: 20px auto; display: grid; grid-template-columns: 250px 1fr; gap: 20px; padding: 0 10px; }
        
        aside { background: var(--gray); padding: 15px; border-radius: 8px; }
        aside ul { list-style: none; padding: 0; }
        aside li { margin-bottom: 10px; border-bottom: 1px solid #ddd; padding-bottom: 5px; }
        
        .product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 20px; }
        .product-card { border: 1px solid #eee; padding: 10px; text-align: center; border-radius: 8px; }
        .product-card img { width: 100%; height: 160px; object-fit: cover; border-radius: 4px; box-shadow: 0 2px 5px rgba(0,0,0,0.1); }
        
        footer { background: #003972; color: white; text-align: center; padding: 20px; margin-top: 40px; }

        @media (max-width: 768px) {
            .container { grid-template-columns: 1fr; }
            nav ul { flex-direction: column; gap: 5px; }
        }