@function get-contrast($color) {
  @return if(lightness($color) < 65%, $white, $darkestGray);
}

@function tint($color, $amount) {
  @return mix(white, $color, $amount);
}

@mixin make-loading-spinner($diameter, $width, $color) {
  content: "";
  position: absolute;
  width: $diameter;
  height: $diameter;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  margin: auto;
  border: $width solid transparent;
  border-top-color: $color;
  border-radius: 50%;
  animation: loading-spinner 1s ease infinite;
}

@mixin make-close-button(
  $color,
  $top,
  $right: auto,
  $left: auto,
  $bottom: auto,
  $rotate: false
) {
  position: absolute;
  top: $top;
  right: $right;
  bottom: $bottom;
  left: $left;
  padding: 0;
  margin: 0;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  background: inherit;
  border-radius: 12px;
  -webkit-box-shadow: 0 5px 20px 0 rgba(0, 0, 0, 0.05);
  box-shadow: 0 5px 20px 0 rgba(0, 0, 0, 0.05);
  -webkit-transition: all 0.25s ease;
  transition: all 0.25s ease;
  z-index: 200;
  border: 0;
  width: 34px;
  height: 34px;
  cursor: pointer;

  &::after {
    content: "";
    width: 14px;
    height: 2px;
    background-color: rgba($color, 0.65);
    transform: rotate(45deg);
    position: absolute;
    -webkit-transition: all 0.25s ease;
    transition: all 0.25s ease;
  }

  &::before {
    content: "";
    width: 14px;
    height: 2px;
    background-color: rgba($color, 0.65);
    transform: rotate(-45deg);
    position: absolute;
    -webkit-transition: all 0.25s ease;
    transition: all 0.25s ease;
  }

  &:hover {
    -webkit-box-shadow: 0 0 4px 0 rgba(0, 0, 0, 0.05);
    box-shadow: 0 0 4px 0 rgba(0, 0, 0, 0.05);
    -webkit-transform: translate(-2px, 2px);
    transform: translate(-2px, 2px);

    @if ($rotate) {
      &::after {
        transform: rotate(0);
      }

      &::before {
        transform: rotate(0);
      }
    }
  }
}