Four Card Feature Section using CSS Grid

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

I've practiced a bit the CSS grid to get the desired layout, even if I started with Flexbox and some additional divs in HTML, I considered that nesting similar elements is not the best approach for a responsive layout.

Again I've used SASS just to practice it, as it could work with plain CSS also

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

I should practice more different ways to get a responsive design without media queries

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

I'm sure the css is not the optimized enough, as I might not used all the benefits provided by SASS. Some tips about this would help. Thanks