Multi-step form with React and Sass

Hey,

I'm open to any suggestions to improve my design or optimize my application!

I tried to keep to React components modular without to much props drilling (I didn't wanted to use redux for this project).

For the CSS/Sass, I tried to keep it organised and I followed some advices I found online but I still need to get used to that way of structure my Sass (and adapt a little bit to what my way of coding).

Have a good day !