FAQ accordian with pure css

What are you most proud of, and what would you do differently next time?

Tried to implement a few things in this:

• completed in pure CSS (which i didn't even know was possible). Could not animate because of that in a way
• created css reset and will use the same in future
• weirdly, hardest thing ended up being adding a background to body along with the background color. Found a solution for that online
• used ::before and ::after pseudo elements which ave always scared me but finally understood, mainly thanks to chatGPT

Any feedback is appreciated as usual