Responsive social links profile using flexbox and media queries

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

I'm quite happy with the outcome!

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

The main challenge I had was making the links to expand to the entire <li> element. I initially had the main CSS bound to the <li> elements and then I realized I had to shift it to the links and use display:block.

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

Any feedback to improve the solution is welcome! Specially around HTML semantics, accessibility, or optimizing the CSS.