Four card feature section made with CSS Grid

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

Initially I wasn't sure how to effectively translate the desktop layout into CSS grid but later figured out that a 4x3 grid works well.

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

If you notice anything off with the page layout (on any screen size ranging up from 320px), please don't hesitate to comment. I'm here to learn how to properly make pages responsive and appreciate any feedback, even if it's critical.

Feedback on other aspects like semantics, code clarity, or best practices is very welcome too.