body { font-family: 'Segoe UI', Arial, sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        h1, h2, h3 { color: #2c3e50; margin-top: 30px; }
        h1 { font-size: 2.5em; text-align: center; border-bottom: 3px solid #e67e22; }
        h2 { font-size: 1.8em; border-left: 5px solid #e67e22; padding-left: 10px; }
        h3 { font-size: 1.5em; color: #3498db; }
        .logo { font-size: 2em; font-weight: bold; color: #e74c3c; text-shadow: 2px 2px 4px rgba(0,0,0,0.1); margin: 20px 0; }
        .nav-btn { display: none; }
        .download-btn, .login-btn { display: inline-block; padding: 12px 25px; margin: 15px 0; font-size: 1.1em; text-decoration: none; border-radius: 5px; transition: all 0.3s; }
        .download-btn { background-color: #27ae60; color: white; }
        .login-btn { background-color: #3498db; color: white; }
        .download-btn:hover, .login-btn:hover { transform: translateY(-2px); box-shadow: 0 5px 15px rgba(0,0,0,0.1); }
        img { max-width: 100%; height: auto; margin: 20px 0; border-radius: 8px; }
        .tags { margin: 30px 0; }
        .tag { background-color: #f39c12; color: white; padding: 5px 10px; margin: 5px; display: inline-block; border-radius: 20px; }
        footer { margin-top: 50px; padding: 20px; background-color: #2c3e50; color: white; text-align: center; }
        @media (max-width: 768px) {
            .nav-btn { display: block; background-color: #e74c3c; color: white; border: none; padding: 10px; margin: 10px 0; width: 100%; }
            .nav-links { display: none; }
            .nav-links.active { display: block; }
            h1 { font-size: 2em; }
        }