body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        .logo { font-size: 2rem; font-weight: bold; color: #FF6B35; text-align: center; margin: 20px 0; }
        nav { background-color: #4A148C; color: white; padding: 10px; display: flex; justify-content: space-around; }
        nav a { color: white; text-decoration: none; }
        .mobile-menu { display: none; }
        @media (max-width: 768px) {
            nav { flex-direction: column; align-items: center; }
            .mobile-menu { display: block; }
        }
        img { max-width: 100%; height: auto; margin: 15px 0; }
        .download-btn { display: block; background-color: #FF6B35; color: white; text-align: center; padding: 15px; margin: 20px 0; text-decoration: none; border-radius: 5px; }
        .login-btn { display: block; background-color: #4A148C; color: white; text-align: center; padding: 15px; margin: 20px 0; text-decoration: none; border-radius: 5px; }
        footer { margin-top: 30px; padding: 20px; background-color: #f5f5f5; text-align: center; }