bare.css uses calc(0 - 0%) all over the place and crashes newer versions of dart-sass

[elirov]

As of dart-sass 1.40.0, calc(0 - something with units) is generating a sass error. e.g., calc(0 - 0px)

Is there any reason to have such a complicated calc expression in bare.css? Can this be simplified to just: 0?

[elirov]

This causes dart-sass to hang on compile.. they claim that calc(0 - 0px) is not valid syntax, so it should be fixed here. https://www.w3.org/TR/css-values-3/#calc-type-checking