body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #f5f5f5; }
        header { background-color: #2c3e50; color: white; padding: 15px; border-radius: 5px; margin-bottom: 30px; }
        .logo { font-size: 24px; font-weight: bold; text-transform: uppercase; letter-spacing: 2px; }
        nav { display: flex; justify-content: space-between; align-items: center; }
        .mobile-menu-btn { display: none; background: none; border: none; color: white; font-size: 20px; cursor: pointer; }
        .nav-links { display: flex; gap: 20px; }
        .nav-links a { color: white; text-decoration: none; }
        h1, h2, h3 { color: #2c3e50; }
        h1 { font-size: 28px; margin-bottom: 20px; }
        h2 { font-size: 22px; margin-top: 30px; border-bottom: 2px solid #3498db; padding-bottom: 5px; }
        h3 { font-size: 18px; margin-top: 25px; }
        .download-btn, .login-btn { display: inline-block; background-color: #e74c3c; color: white; padding: 10px 20px; text-decoration: none; border-radius: 5px; margin: 10px 0; font-weight: bold; }
        .download-btn:hover, .login-btn:hover { background-color: #c0392b; }
        .image-container { text-align: center; margin: 20px 0; }
        img { max-width: 100%; height: auto; border-radius: 5px; }
        .tags { margin: 20px 0; }
        .tag { display: inline-block; background-color: #3498db; color: white; padding: 5px 10px; border-radius: 3px; margin-right: 5px; text-decoration: none; }
        footer { margin-top: 40px; padding-top: 20px; border-top: 1px solid #ddd; text-align: center; }
        @media (max-width: 768px) {
            .nav-links { display: none; flex-direction: column; width: 100%; }
            .nav-links.active { display: flex; }
            .mobile-menu-btn { display: block; }
            nav { flex-direction: column; align-items: flex-start; }
            body { padding: 10px; }
        }