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Assigning different set of CSS to different pages

HI guys,
I’m starting with webflow, so I’m not sure if this is possible.
I’m building a “website” (imagine it as some sort of blog), where each article has a different design. In order to practice and learn I wanted to show different designs for each “blog article”, but of course all within the same site.
The homepage will call those articles as I add new ones.

PROBLE: since I use different fonts, and styles for elements, tHE CSS is getting super long, and the naming of the classes quite daunting. Is there a way to manage that, by assigning individual CSS to each of the articles (pages)?
The only solution I see would be to have the PRO account and make each page as an individual site (project)

I would appreciate any suggestion. THanks

Here is my site Read-Only: LINK
(how to share your site Read-Only link)