QR Code page, centered with flex

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

Proud of figuring out the specifics and colors using Figma (which I am unfamiliar with), would do the CSS more clean next time.

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

Centering the card and figuring exact values of fonts, values, etc. Centered the card using 100vh, figured out the values using Figma.

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

I would like to know whether I used figcaption correctly and whether I could include more semantics in the page other than using div for accessibility.