:root {
            --primary: #002d5b;
            --secondary: #0056b3;
            --accent: #006064;
            --light: #f4f7f9;
            --dark: #000;
        }

        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif; line-height: 1.6; color: #333; margin: 0; }
        
        /* Header */
        header { background: #fff; padding: 1rem 0; box-shadow: 0 2px 5px rgba(0,0,0,0.1); }
        .nav-container { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; padding: 0 20px; }
        .logo { width: 180px; }
        nav ul { display: flex; list-style: none; margin: 0; padding: 0; }
        nav li { margin-left: 20px; }
        nav a { text-decoration: none; color: var(--primary); font-weight: 600; font-size: 0.9rem; }

        /* Hero */
        .hero { background: var(--primary); color: #fff; padding: 80px 20px; text-align: center; }
        .hero-img { max-width: 600px; margin: 0 auto 20px; filter: drop-shadow(0 10px 10px rgba(0,0,0,0.3)); border-radius: 8px; }
        
        /* Main Layout */
        .container { max-width: 1100px; margin: 40px auto; padding: 0 20px; }
        .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
        
        /* Content Styling */
        .card { border: 1px solid #eee; padding: 20px; border-radius: 12px; box-shadow: 0 4px 10px rgba(0,0,0,0.05); }
        h2 { color: var(--primary); border-bottom: 2px solid var(--secondary); display: inline-block; }
        
        footer { background: var(--dark); color: #fff; padding: 40px 20px; text-align: center; margin-top: 60px; font-size: 0.9rem; }
        
        @media (max-width: 768px) {
            nav ul { display: none; }
            .hero h1 { font-size: 1.5rem; }
        }