:root {
            --primary: #006da3;
            --secondary: #004a59;
            --light: #f7f7f7;
            --text: #333;
            --white: #ffffff;
        }

        body { font-family: 'Arial', sans-serif; line-height: 1.6; color: var(--text); margin: 0; padding: 0; }
        header { background: var(--white); padding: 20px; border-bottom: 3px solid var(--primary); display: flex; justify-content: space-between; align-items: center; }
        
        .logo-container img { max-height: 60px; }
        
        nav ul { list-style: none; display: flex; gap: 15px; margin: 0; padding: 0; }
        nav a { text-decoration: none; color: var(--primary); font-weight: bold; font-size: 0.9rem; }

        .hero { 
            background: linear-gradient(rgba(0,109,163,0.8), rgba(0,74,89,0.8)); 
            color: white; 
            padding: 80px 20px; 
            text-align: center;
        }

        .container { max-width: 1100px; margin: auto; padding: 40px 20px; }
        
        .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
        .card { border: 1px solid #ddd; padding: 20px; border-radius: 8px; transition: 0.3s; }
        .card:hover { box-shadow: 0 5px 15px rgba(0,0,0,0.1); }

        footer { background: #6d6e71; color: white; text-align: center; padding: 40px; margin-top: 50px; }
        
        @media (max-width: 768px) {
            header { flex-direction: column; }
            nav ul { flex-wrap: wrap; justify-content: center; margin-top: 20px; }
        }