Four card feature using grid

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

Relearning grid was tricky. I wanted to build the grid without media queries but couldn't figure out how to make the columns responsive whilst using grid-row and grid-column on the grid items. That breaks the trick of using repeat(auto-fit, ...). I ended up having to use a media query but I got away with only one. Below that breakpoint the grid is responsive.

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

The whole .card-grid class. Is there a better, cleaner way I could've built the layout in the design?