When I thought about Project Gutenberg I remembered that original brutalist non-design. The current site has been very tastefully updated but looks like it's still very accessible if you turn styles off. Great job!
Less than three is a classic!
s2 < <3
I suppose a printed book, black ink on paper, is "brutalist" and unpleasant to look at?
The text of a book shouldn't be encrusted with format, your reader or browser should contain the presentation that you want to see, find appealing, or need (accessibility).