body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        h1, h2, h3 { color: #2c3e50; margin-top: 1.5em; }
        h1 { border-bottom: 2px solid #e74c3c; padding-bottom: 10px; }
        .logo { font-size: 2.5em; font-weight: bold; color: #e74c3c; text-shadow: 2px 2px 4px rgba(0,0,0,0.2); }
        .mobile-nav { display: none; background: #34495e; color: white; padding: 10px; text-align: center; cursor: pointer; }
        nav { background: #34495e; padding: 15px; margin-bottom: 30px; }
        nav a { color: white; text-decoration: none; margin: 0 15px; font-weight: bold; }
        .download-btn { background: #2ecc71; color: white; padding: 12px 25px; border-radius: 5px; text-decoration: none; font-weight: bold; display: inline-block; margin: 20px 0; }
        .login-btn { background: #3498db; color: white; padding: 12px 25px; border-radius: 5px; text-decoration: none; font-weight: bold; display: inline-block; margin: 20px 10px; }
        img { max-width: 100%; height: auto; margin: 20px 0; border-radius: 8px; }
        .tags { margin: 30px 0; }
        .tag { background: #f1c40f; color: #333; padding: 5px 10px; border-radius: 3px; margin: 5px; display: inline-block; }
        footer { background: #2c3e50; color: white; padding: 20px; text-align: center; margin-top: 50px; }
        @media (max-width: 768px) {
            nav { display: none; }
            .mobile-nav { display: block; }
            .show-nav { display: block; }
        }