body { font-family: 'Arial', sans-serif; line-height: 1.6; max-width: 1200px; margin: 0 auto; padding: 20px; color: #333; }
        h1, h2, h3 { color: #0a4b7a; margin: 25px 0 15px; }
        h1 { font-size: 2.2em; border-bottom: 2px solid #ff9900; }
        h2 { font-size: 1.8em; }
        h3 { font-size: 1.5em; }
        .logo { font-size: 2.5em; font-weight: bold; color: #ff6600; text-shadow: 2px 2px 4px rgba(0,0,0,0.2); margin-bottom: 20px; }
        .nav { background: #0a4b7a; padding: 10px; display: flex; justify-content: space-between; align-items: center; }
        .nav a { color: white; text-decoration: none; margin: 0 10px; }
        .mobile-nav-btn { display: none; background: #ff6600; color: white; border: none; padding: 8px 12px; cursor: pointer; }
        .download-btn, .login-btn { display: inline-block; padding: 12px 25px; margin: 15px 0; font-size: 1.1em; border-radius: 5px; text-decoration: none; }
        .download-btn { background: #4CAF50; color: white; }
        .login-btn { background: #2196F3; color: white; }
        img { max-width: 100%; height: auto; margin: 15px 0; }
        .cta-section { background: #f0f8ff; padding: 20px; border-radius: 8px; margin: 25px 0; }
        .tags { margin: 20px 0; }
        .tags a { background: #e0e0e0; padding: 5px 10px; margin: 0 5px 5px 0; display: inline-block; border-radius: 3px; text-decoration: none; color: #333; }
        footer { margin-top: 40px; padding: 20px; background: #0a4b7a; color: white; }
        @media (max-width: 768px) {
            .nav { flex-direction: column; }
            .mobile-nav-btn { display: block; }
            .nav-links { display: none; }
            .nav-links.active { display: block; }
            .nav-links a { display: block; margin: 5px 0; }
        }