Fylo landing page, responsive mobile first

most of the grid is pure css but for the .container class I used the one bootstrap5 has to offer I didn't have access to figma files so the sizing may not be quite accurate. for the icons in the footer: fontawsome didn't have the exact social icons and I couldn't come up with a clean solution for the circle around it, if anyone has a better solution I'll be super greatfull to hear about it.