:root {
            --primary: #003e7e;
            --secondary: #0099e5;
            --dark: #000;
            --light: #f4f4f4;
            --accent: #00a4a6;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; line-height: 1.6; color: #333; }
        
        header { background: #fff; padding: 1rem 5%; display: flex; justify-content: space-between; align-items: center; border-bottom: 2px solid var(--primary); }
        .logo-container { width: 200px; height: 60px; background: var(--primary); display: flex; align-items: center; justify-content: center; }
        .logo-container img { max-height: 100%; object-fit: contain; }
        
        nav ul { display: flex; list-style: none; gap: 20px; }
        nav a { text-decoration: none; color: var(--primary); font-weight: 600; }
        
        .hero { height: 400px; background: linear-gradient(rgba(0,62,126,0.8), rgba(0,62,126,0.8)), #ddd; display: flex; flex-direction: column; align-items: center; justify-content: center; color: white; text-align: center; padding: 2rem; }
        
        .container { max-width: 1200px; margin: 2rem auto; padding: 0 1rem; display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
        
        .card { padding: 1.5rem; border: 1px solid #ddd; border-radius: 8px; box-shadow: 0 2px 5px rgba(0,0,0,0.1); }
        .card img { width: 100%; height: 200px; object-fit: cover; border-radius: 4px; margin-bottom: 1rem; }
        
        footer { background: var(--dark); color: white; text-align: center; padding: 2rem; margin-top: 3rem; }
        
        @media (max-width: 768px) {
            nav ul { flex-direction: column; text-align: center; }
            header { flex-direction: column; }
        }