.reg-container { text-align: center; }
        button { background-color: #1e90ff; color: white; padding: 10px 20px; border: none; border-radius: 5px; cursor: pointer; }
        button:hover { background-color: #1c86ee; }
        #reg-email-result { margin-top: 20px; font-size: 1.2em; }