You are not wrong. But my god, the tech debt in any slightly older web app's CSS is bonkers. Even with really well thought out templates you still end up with ~5000 line css files that have all sorts of state and magic in them.
And like all tech debt, it's a triage.
What I'd really like is more intellisense for css so I could take a css file and get sensible code complete and class suggestions for elements.
you raise a very important point: the tooling around CSS is nothing like we have everywhere else. you can get class completion with Tailwind or CSS Modules (which I prefer), but even basic stuff like CSS Variables or SASS mixins are a black hole
I don’t know what tooling you use, but IntelliJ does all that for me, including autocomplete for variables, HTML elements in HTML files or components, and so on.
If you use the inspections, it can also make dead code removal really easy.
What I'd really like is more intellisense for css so I could take a css file and get sensible code complete and class suggestions for elements.