Assuming that I understand your objective…
@import in a CSS file reference the other files, it does not import them in the same way that Sass does during transpilation.
So I think you would need to:
1) Name your CSS files so that when sorted they are concatenated in the correct order:
01_main.css
02_reset.css
03_vars.css
04_layout.css
2) Use resources.Match "*.css"
to get all of them.
3) Sort them (resources.Match
may already do that… I don’t remember).
4) Concatenate them with resources.Concat
.