body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        h1, h2, h3 { color: #d42a1d; margin-top: 30px; }
        h1 { font-size: 2.5em; }
        h2 { font-size: 2em; }
        h3 { font-size: 1.5em; }
        .logo { font-size: 2em; font-weight: bold; color: #ff9900; text-shadow: 2px 2px 4px rgba(0,0,0,0.3); }
        .nav { background: #f8f8f8; padding: 10px; display: flex; justify-content: space-between; align-items: center; }
        .nav-mobile { display: none; }
        .btn { background: #d42a1d; color: white; padding: 10px 15px; border-radius: 5px; text-decoration: none; }
        .download-btn, .login-btn { display: inline-block; margin: 20px 0; padding: 15px 25px; font-size: 1.2em; }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        .tags { margin: 20px 0; }
        .tag { background: #eee; padding: 5px 10px; margin: 5px; display: inline-block; border-radius: 3px; }
        .footer { margin-top: 50px; padding: 20px; background: #333; color: white; text-align: center; }
        @media (max-width: 768px) {
            .nav-desktop { display: none; }
            .nav-mobile { display: block; }
            .logo { font-size: 1.5em; }
        }