:root {
            --primary: #0170b9;
            --dark: #3a3a3a;
            --light: #f5f5f5;
            --white: #ffffff;
            --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
        }
        * { box-sizing: border-box; }
        body { margin: 0; font-family: var(--font); color: var(--dark); line-height: 1.6; background: var(--light); }
        
        header { background: var(--white); padding: 1rem 5%; display: flex; justify-content: space-between; align-items: center; box-shadow: 0 2px 5px rgba(0,0,0,0.1); }
        .logo { width: 150px; }
        .logo img { width: 100%; height: auto; }
        nav ul { display: flex; list-style: none; gap: 20px; margin: 0; padding: 0; }
        nav a { text-decoration: none; color: var(--dark); font-weight: 600; font-size: 0.9rem; }
        nav a:hover { color: var(--primary); }

        .hero { position: relative; height: 500px; background: #ddd; overflow: hidden; display: flex; align-items: center; justify-content: center; }
        .hero-bg { width: 100%; height: 100%; object-fit: cover; }
        .hero-overlay { position: absolute; color: var(--white); text-align: center; background: rgba(0,0,0,0.4); padding: 2rem; border-radius: 8px; }

        .container { max-width: 1200px; margin: 2rem auto; padding: 0 20px; }
        .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
        .card { background: var(--white); padding: 20px; border-radius: 8px; box-shadow: 0 4px 6px rgba(0,0,0,0.05); text-align: center; }
        .card img { max-width: 100%; height: 200px; object-fit: cover; border-radius: 4px; }
        
        footer { background: var(--dark); color: var(--white); text-align: center; padding: 2rem; margin-top: 3rem; }

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