.ripple-surface {
  position: relative;
  overflow: hidden;
  display: inline-block;
  vertical-align: bottom;
}

.ripple-surface-unbound {
  overflow: visible;
}

.ripple-wave {
  @include ripple-variant(black);
  $cubicBezier: cubic-bezier(0, 0, 0.15, 1);
  border-radius: 50%;
  opacity: 0.5;
  pointer-events: none;
  position: absolute;
  touch-action: none;
  transform: scale(0);
  transition-property: transform, opacity;
  transition-timing-function: $cubicBezier, $cubicBezier;
  z-index: 999;
  &.active {
    transform: scale(1);
    opacity: 0;
  }
}

.btn .ripple-wave {
  @include ripple-variant(white);
}

@each $color, $value in $theme-colors {
  .ripple-surface-#{$color} {
    .ripple-wave {
      @include ripple-variant($value);
    }
  }
}