%background-white
  background: white
  a:not([href="#"])
    color: $color-link

%background-main
  background: $color-background-main
  a:not([href="#"])
    color: $color-link-alt

%background-subtle
  background: $color-background-subtle
  a:not([href="#"])
    color: $color-link-alt

%background-glassy
  background: $color-background-glassy

%background-hover
  background: $color-background-hover
  a:not([href="#"])
    color: $color-link-alt

%background-active
  background: $color-background-active
  &, a:not([href="#"])
    color: white
  
%background-error
  background: $color-background-error
  color: $color-accent
  & > a
    color: $color-accent
  
=subtle_background
  @extend %background-subtle

=white_background
  @extend %background-white