Clipboard landing page with scss, flexbox and grid

Hi, here with other challenge of this plataform.

In general i want that someone give me tips for improve my sass code.

I do my best trying to make it the closer as possible with the design, i used sass, if someone can show that and say me how i can improve the sass code will be great, and in general best practices also be great.

Any other feedback always is helpful, have a nice day guys <3