body { font-family: 'Arial', sans-serif; line-height: 1.6; max-width: 1200px; margin: 0 auto; padding: 20px; color: #333; }
        h1, h2, h3 { color: #0a4c8a; }
        h1 { font-size: 2.2em; border-bottom: 2px solid #f90; padding-bottom: 10px; }
        h2 { font-size: 1.8em; margin-top: 30px; }
        h3 { font-size: 1.4em; color: #2a73cc; }
        .logo { font-size: 2.5em; font-weight: bold; color: #f90; text-shadow: 1px 1px 2px #000; }
        .mobile-nav { display: none; background: #0a4c8a; color: white; padding: 10px; text-align: center; cursor: pointer; }
        nav { background: #0a4c8a; padding: 15px; margin-bottom: 20px; }
        nav ul { list-style: none; padding: 0; display: flex; justify-content: space-around; }
        nav li a { color: white; text-decoration: none; font-weight: bold; }
        .download-btn { background: #4CAF50; color: white; padding: 12px 25px; border-radius: 5px; display: inline-block; margin: 15px 0; text-decoration: none; }
        .login-btn { background: #2196F3; color: white; padding: 12px 25px; border-radius: 5px; display: inline-block; margin: 15px 10px; text-decoration: none; }
        img { max-width: 100%; height: auto; margin: 20px 0; border-radius: 8px; }
        .tags { margin: 20px 0; }
        .tag { background: #e0e0e0; padding: 5px 10px; margin: 5px; display: inline-block; border-radius: 3px; }
        footer { background: #333; color: white; padding: 20px; text-align: center; margin-top: 40px; }
        @media (max-width: 768px) {
            nav ul { flex-direction: column; text-align: center; }
            .mobile-nav { display: block; }
            nav { display: none; }
            nav.active { display: block; }
        }