@use 'sass:map';
@use 'src/module/elevation/variable/shadows';
@use 'src/module/utilities';
@use '../variable/colors';
@use 'src/module/legacy';

@mixin shadow($layer, $legacy: false, $background: null) {
  @if $legacy {
    @include utilities.nest($background) {
      @include legacy.is(ie11) {
        box-shadow: 0 0 0 1px #{map.get(colors.$values, light)};
      }
    }
  }
  @else {
    @if map.has-key(shadows.$values, $layer) {
      filter: drop-shadow(var(--#{$layer}-shadow));
    }
  }
}