Sign-up form - Dating Site for Cats

Since discovering my cult of design friends are doing the 100 days of UI via dailyui.com, I decided to jump in on some of the action. Let's see how long I can keep this up for.

This one shows the form in an error state after the user mistakenly pawed an incorrectly formatted email. The button serves as a space for the error message since it serves no use otherwise.