Align styles with cu.css

Changed

As I finally find time to get back into working on this course, I’ve spent some time reworking the CSS so it’s inline with cu.css and my current way of working.

This includes:

  • Updating the CSS spacing system to use Utopia.fyi
  • Improving the global styles based on cu.css
  • Introducing .cluster and .repel compositions from cu.css
  • Introducing exceptions from cu.css / CUBE CSS
  • Reducing the number of utilities required in the design.