:root {
            --black: #000;
            --white: #fff;
            --accent: #2a9d8f;
            --font-main: 'Helvetica Neue', Helvetica, Arial, sans-serif;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: var(--font-main); color: var(--black); line-height: 1.6; }
        a { text-decoration: none; color: inherit; }
        ul { list-style: none; }
        
        .main-header { padding: 2rem; text-align: center; }
        .branding h1 { font-size: 2.5rem; letter-spacing: 0.2rem; text-transform: uppercase; }
        
        .navigation { display: flex; justify-content: center; padding: 1rem; border-top: 1px solid #eee; border-bottom: 1px solid #eee; }
        .navigation ul { display: flex; gap: 2rem; }
        
        .hero { background: #f9f9f9; height: 60vh; display: flex; align-items: center; justify-content: center; background-size: cover; background-position: center; }
        .hero-banner { width: 100%; height: 100%; object-fit: cover; }
        
        .masonry-features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; padding: 20px; }
        .masonry-feature { height: 300px; background: #eee; position: relative; overflow: hidden; }
        .masonry-feature img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
        .masonry-feature:hover img { transform: scale(1.05); }

        .introduction-message { max-width: 800px; margin: 4rem auto; text-align: center; padding: 0 1rem; }
        
        .featured-products { padding: 4rem 2rem; }
        .featured-products-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }
        @media (max-width: 768px) {
            .featured-products-list { grid-template-columns: 1fr; }
            .navigation ul { flex-direction: column; align-items: center; }
        }
        
        .product-list-item-thumbnail { height: 350px; background: #f0f0f0; margin-bottom: 1rem; }
        .product-list-item-thumbnail img { width: 100%; height: 100%; object-fit: cover; }
        
        .main-footer { padding: 4rem 2rem; background: #fafafa; border-top: 1px solid #eee; text-align: center; }
        .social-icon { margin: 0 10px; font-weight: bold; }