:root {
            --primary: #002752;
            --accent: #007bff;
            --text: #333;
            --light: #f4f4f4;
        }

        * { box-sizing: border-box; }
        body { 
            margin: 0; 
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            line-height: 1.6;
            color: var(--text);
        }

        header { background: #fff; padding: 1rem 5%; border-bottom: 3px solid var(--primary); display: flex; align-items: center; justify-content: space-between; }
        .logo { height: 60px; }
        
        nav { display: flex; gap: 15px; flex-wrap: wrap; }
        nav a { text-decoration: none; color: var(--primary); font-weight: bold; font-size: 0.9rem; }

        .hero { 
            height: 400px; 
            background: linear-gradient(rgba(0,39,82,0.6), rgba(0,39,82,0.6)), url('/assets/chair_banner-1200x469.jpg');
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            text-align: center;
        }

        main { max-width: 1200px; margin: 2rem auto; padding: 0 1rem; }
        
        .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
        .card { border: 1px solid #ddd; border-radius: 8px; overflow: hidden; box-shadow: 0 4px 6px rgba(0,0,0,0.1); }
        .card img { width: 100%; height: 200px; object-fit: cover; }
        .card-body { padding: 1rem; }

        footer { background: var(--primary); color: white; text-align: center; padding: 2rem; margin-top: 3rem; }

        @media (max-width: 768px) {
            header { flex-direction: column; }
            nav { justify-content: center; margin-top: 1rem; }
        }