// Use a function to determine shadow opacity based
// on either a light or dark theme. We use a multiplier
// of 1 for light themes and 2.5 for dark themes
@function shadowOpacity($opacity) {
  @if (lightness($euiTextColor) < 50) {
    @return $opacity * 1;
  } @else {
    @return $opacity * 2.5;
  }
}