Order summary component using SCSS

Hey, community! That's another project done with SCSS. Here I added fluid typography using SCSS functions. Also I compiled SCSS with this npm script instead of Gulp.

My code could be shorter (maybe), if I'd use some utility classes and templates, mixins instead of duplicating some properties from one selector to another. Do you know some of the best practices for project structure (if speaking about SCSS partials etc.), code structure in SCSS?

I'd like to hear your opinion about my solution. What should I improve to make my code better?