Review my Simon Game, please? :) + Bonus question!

Hi, campers!

I think I am very close to finishing my Simon Game - just working on some more css!
Mind having a look and sharing your thoughts?

Link to my project.

Thank you.

BONUS QUESTION: Still can’t implement a click block for the player when Simon plays a sequence. I tried different solutions but I think it has to do with the way both player and Simon clicks are working the same way (by blocking player click, Simon is not able to replicate the sequence). Any hint on this?