:root {
            --primary: #00468c;
            --secondary: #003366;
            --accent: #06b53c;
            --dark: #080808;
            --light: #f4f4f4;
            --white: #ffffff;
        }

        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; background: #eee; }

        .container { max-width: 1100px; margin: 0 auto; background: var(--white); padding: 20px; box-shadow: 0 0 10px rgba(0,0,0,0.1); }

        header { border-bottom: 3px solid var(--primary); padding-bottom: 20px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; }
        
        .logo-placeholder { background: var(--secondary); color: var(--white); padding: 15px; font-weight: bold; font-size: 24px; text-decoration: none; border-radius: 4px; }

        nav { display: flex; gap: 15px; flex-wrap: wrap; margin-top: 10px; }
        nav a { text-decoration: none; color: var(--primary); font-weight: bold; font-size: 14px; }
        nav a:hover { color: var(--accent); }

        .hero { background: var(--dark); color: var(--white); padding: 60px 20px; text-align: center; margin: 20px 0; border-radius: 8px; }
        
        .main-content { display: grid; grid-template-columns: 2fr 1fr; gap: 30px; margin-top: 30px; }

        .card { border: 1px solid #ddd; padding: 15px; margin-bottom: 20px; border-radius: 4px; }
        .card h3 { color: var(--primary); margin-bottom: 10px; }

        footer { margin-top: 40px; padding: 20px; background: var(--dark); color: var(--white); text-align: center; font-size: 12px; }

        /* Responsive */
        @media (max-width: 768px) {
            .main-content { grid-template-columns: 1fr; }
            header { justify-content: center; text-align: center; }
        }

        @media (max-width: 1024px) {
            .container { width: 95%; }
        }