Master stylesheet possibilities

Hi guys, I was hoping to see if there are best practices or pointers when using multiple stylesheets that only differ slightly. Case: The stylesheets are largely similar, with small variations in things like $brand-primary, the border-radius of .cards and a few other things.  the usage of multiple stylesheets is not the problem, as that is working. The maintainability however is, as I don't want to have to update every stylesheet with every change. I want something like a 'master' stylesheet, with the specifics per environments in separate small stylesheets that’ll complement the master. Is something like this possible/difficult?
1 answers

Do you use multiple stylesheets? I would recommend loading in one 'shared/default' and then below you can load in your custom one. The lower the style sheet is placed in the html the higher the priority.