Interactive rating [ Vanilla JS ]

Finally getting started on javascript challenges. I would appreciate some feedback regarding accessibility, as I tried to implement the keyboard navigation while also applying the hovered and selected states, but I'm not sure if the script was optimal. I also took the liberty to add a message whenever you try to submit without choosing a rating.

[UPDATE]
Uploading a new solution since I had to refactor the two forms styling as it was bugging the transition animation I tried to implement. In the end it turned out to be even simpler, since I didn't have to modify anything directly through javascript like before. The issue involved hiding the content with display properties but I just couldn't get it to work using the reduced-motion media query, so I simply made use of positioning and hidden overflown instead. I'm pretty satisfied with the end result and would love to hear any kind of feedback.