@mixin button-style-ghost($background: $color-darkgrey, $border-width: 2px) {
  background-color: transparent;
  border: $border-width solid $background;
  color: $background;

  &:focus,
  &:hover {
    background-color: $color-buttons-hover;
    border-color: $color-buttons-hover;
    color: choose-contrast-color($color-buttons-hover);
  }
}