Responsive grid with hover and dynamically loading data

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

I'm so proud of the layout, it took me several hours to perfect but I think it looks really good.

What challenges did you encounter, and how did you overcome them?

My biggest challenge was getting the rounded of the cards. I couldn't understand how to get it so that the bottom of the card appeared rounded underneath the top of it, I found out I had to use the background colour of the top of the card and then set another background colour for the bottom of the card whilst rounding it out.

Some other challenges I faced included trying to get the javascript to work on my server (it worked fine in localhost) but I think this was a chacing issue as it worked fine through private browsing. Another challenge I faced was with the icons and overflow:hidden not actually hiding the content.

What specific areas of your project would you like help with?

I'd like help with my styling, i'm sure there was a faster way to write my stylesheets (or a better) Perhaps I could've used container queries? Is this a good way to go?