:root {
            --primary: #005b9a;
            --dark: #002a80;
            --accent: #00a0d1;
            --light: #f4f6f8;
            --text: #333;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif; line-height: 1.6; color: var(--text); }
        
        header { background: #fff; padding: 1rem; border-bottom: 3px solid var(--primary); display: flex; justify-content: space-between; align-items: center; }
        .logo-placeholder { font-weight: bold; font-size: 1.5rem; color: var(--primary); letter-spacing: -1px; }
        
        nav ul { display: flex; list-style: none; gap: 20px; }
        nav a { text-decoration: none; color: var(--text); font-weight: 600; font-size: 0.9rem; text-transform: uppercase; }
        
        .hero { 
            background: linear-gradient(135deg, #005b9a, #00a0d1); 
            color: #fff; 
            padding: 4rem 2rem; 
            text-align: center; 
        }
        
        .container { max-width: 1100px; margin: auto; padding: 2rem; }
        .grid { display: grid; gap: 2rem; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
        
        .card { border: 1px solid #ddd; padding: 1.5rem; border-radius: 8px; background: #fff; transition: transform 0.3s; }
        .card:hover { transform: translateY(-5px); box-shadow: 0 10px 20px rgba(0,0,0,0.1); }
        
        .img-fallback { width: 100%; height: 200px; background: #eee; margin-bottom: 1rem; display: flex; align-items: center; justify-content: center; color: #999; border-radius: 4px; }

        footer { background: #121212; color: #fff; padding: 2rem; text-align: center; margin-top: 3rem; }

        @media (max-width: 768px) { nav ul { display: none; } }