:root {
            --primary: #00739c;
            --accent: #00aeef;
            --dark: #000;
            --light: #fff;
            --gray: #f4f4f4;
        }
        * { 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: #333; }
        
        header { background: var(--dark); padding: 1rem; color: var(--light); display: flex; align-items: center; justify-content: space-between; }
        .logo-container { width: 200px; height: 50px; display: flex; align-items: center; justify-content: center; background: #222; border-radius: 4px; font-weight: bold; }
        .logo-container img { max-width: 100%; height: auto; }
        
        nav ul { display: flex; list-style: none; gap: 15px; }
        nav a { color: var(--light); text-decoration: none; font-size: 0.9rem; }
        
        .hero { background: var(--primary); padding: 4rem 1rem; text-align: center; color: var(--light); position: relative; }
        .hero-img { width: 100%; height: 300px; background: linear-gradient(45deg, var(--primary), var(--accent)); display: flex; align-items: center; justify-content: center; margin-bottom: 1rem; object-fit: cover; }
        
        .container { max-width: 1200px; margin: 0 auto; padding: 2rem; display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
        .card { border: 1px solid #ddd; padding: 1rem; border-radius: 8px; transition: transform 0.2s; }
        .card:hover { transform: translateY(-5px); }
        .card-img { width: 100%; height: 200px; background: #eee; margin-bottom: 1rem; display: flex; align-items: center; justify-content: center; color: #888; border-radius: 4px; }
        
        footer { background: var(--dark); color: var(--light); text-align: center; padding: 2rem; margin-top: 2rem; }

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