body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        h1, h2, h3 { color: #e74c3c; margin: 25px 0 15px; }
        h1 { font-size: 2.5em; border-bottom: 2px solid #e74c3c; padding-bottom: 10px; }
        h2 { font-size: 1.8em; }
        h3 { font-size: 1.4em; }
        .logo { font-size: 2.2em; font-weight: bold; color: #e74c3c; text-shadow: 2px 2px 4px rgba(0,0,0,0.3); }
        nav { background: #2c3e50; padding: 15px; margin-bottom: 20px; }
        nav ul { list-style: none; padding: 0; display: flex; flex-wrap: wrap; justify-content: center; }
        nav ul li { margin: 0 15px; }
        nav ul li a { color: white; text-decoration: none; }
        .mobile-menu { display: none; text-align: center; background: #e74c3c; color: white; padding: 10px; cursor: pointer; }
        .download-btn, .login-btn { display: inline-block; background: #e74c3c; color: white; padding: 12px 25px; margin: 15px 0; text-decoration: none; border-radius: 5px; font-weight: bold; }
        .download-btn:hover, .login-btn:hover { background: #c0392b; }
        img { max-width: 100%; height: auto; margin: 20px 0; border-radius: 8px; }
        .image-container { text-align: center; margin: 20px 0; }
        footer { background: #2c3e50; color: white; padding: 20px; text-align: center; margin-top: 30px; }
        .tag-container { margin: 20px 0; }
        .tag { background: #3498db; color: white; padding: 5px 10px; margin: 5px; display: inline-block; border-radius: 20px; }
        @media (max-width: 768px) {
            nav ul { flex-direction: column; align-items: center; display: none; }
            nav ul.active { display: flex; }
            .mobile-menu { display: block; }
            body { padding: 10px; }
        }