Make the footer grayscale and darker
Add an explanation for the tabs
Add a hover for the tabs
Properly center the main banner’s content
Use border-top to avoid moving the content on hover
Show our contact email in the footer
Show a scroll hint
Make the info graphics more opaque
Rewrite the “steps” points CSS

It’s now simpler, more stable (sizes are controlled via a few variables)
and step “points” are centered above the text. All lines are perfectly
connected and centered.
Fix mobile styles for the solutions