How can I edit css style on my suitecrm. Or where I can do it in my IDE?

I have suiteCRM 7.10.7, and I want to change some styles. So, where I can do it? Becouse styles files autogenerate. Thanks

This article is a bit outdated but it still let’s you learn about the SASS generation and the sub-themes structure:

Then you need to make sure you don’t customize directly like the article suggests, instead try to do everything on the custom folder so that it’s upgrade-safe.

Since a lot of people seem to be clicking the above links, I’d like to leave a newer link, to an updated version of the above article: