The intention is that it should "just work"... I'm aware sometimes it doesn't, you can consider that a bug :)

But if you really want custom CSS for grid displays, chawan does support the standard "grid" media feature: https://developer.mozilla.org/en-US/docs/Web/CSS/@media/grid

I have implemented changes based on your advice of using @media: grid, and everything looks better now. You can check it here: https://brutalinks.tech (it's a link aggregator similar to HN).

I had no idea this CSS API existed. I'll add that to my CSS, thank you! :)

I'll check if the issue tracker has anything related to supporting titled alternate stylesheets (and eventually allowing users to pick one of them), because on the website where I made efforts for the markup to look reasonable on links, I also have a "simple" style that removes most of the CSS fanciness.