I did it. And I'm cool. But. I tried use an OOCSS naming convention and I'm not quite happy with the result. Maybe it's because I didn't catch the main idea, or maybe because this approach doesn't really fit there. Guess I should look for more examples.
I still leave the tag for people, who familiar with this convention, could come here and yell to me about what I did wrong.
What challenges did you encounter, and how did you overcome them?I tried to animate progress bars for summary content and had to use pseudo-elements for this. This in turn required add more custom css properties to manipulate those pseudo-elements via JS. But I'm glad with the result.
What specific areas of your project would you like help with?Open for any suggestions =)