CSS minify error CSS1030

[fouadalnahhal]

result:
/* input(21,3602): run-time error CSS1030: Expected identifier, found '.'
input(21,3618): run-time error CSS1025: Expected comma or open brace, found ')'
input(21,4051): run-time error CSS1030: Expected identifier, found '.'
input(21,4067): run-time error CSS1025: Expected comma or open brace, found ')'
...

[paator]

I experience the same issue in my styles.

EDIT: Upon further inspection, it turned out to be a real CSS error, albeit very hard to spot. In the Blazor server-side exported output, there was a random dot:

.class .{ }

These were bundled component-scoped styles in a single file. The error syntax indicating the line that triggered the error was incorrect. However, I managed to identify the issue manually.