:root {
            --primary: #0077b5;
            --secondary: #009688;
            --dark: #000;
            --accent: #005821;
            --bg: #f4f7f9;
        }

        * { 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; background: var(--bg); }

        header { background: #fff; padding: 1rem; border-bottom: 3px solid var(--primary); display: flex; justify-content: space-between; align-items: center; }
        .logo { max-width: 200px; height: auto; }
        nav a { margin-left: 1rem; text-decoration: none; color: var(--primary); font-weight: bold; }

        .hero { position: relative; width: 100%; height: 400px; background: #00426e; overflow: hidden; display: flex; align-items: center; justify-content: center; }
        .hero img { width: 100%; height: 100%; object-fit: cover; opacity: 0.6; }
        .hero-text { position: absolute; color: white; text-align: center; padding: 1rem; }

        .container { max-width: 1200px; margin: 2rem auto; padding: 0 1rem; display: grid; grid-template-columns: 1fr; gap: 2rem; }
        @media (min-width: 768px) { .container { grid-template-columns: 2fr 1fr; } }

        .card { background: #fff; padding: 2rem; border-radius: 8px; box-shadow: 0 4px 6px rgba(0,0,0,0.1); }
        .content-img { width: 100%; height: 300px; object-fit: cover; border-radius: 8px; margin-bottom: 1rem; }
        
        .btn { display: inline-block; padding: 0.8rem 1.5rem; background: var(--secondary); color: #fff; text-decoration: none; border-radius: 4px; font-weight: bold; }

        footer { text-align: center; padding: 2rem; background: var(--dark); color: #fff; margin-top: 3rem; }