$black: #000;
$blue: #0a84c1;
$white: #fff;
$base-font-size: 14px;

.slider {
  width: 100%;
  height: 0.7rem;
  border: 1px solid $black;
  position: relative;

  &.one-way .handle.handle-left {
    visibility: hidden;
  }

  .slider-circle {
    width: 0.6rem;
    height: 0.6rem;
    border-radius: 50%;
    background-color: $blue;
    position: relative;
    display: inline-block;
    margin-top: 1rem;
    pointer-events: none;
    -webkit-user-select: none;
  }

  .handle {
    width: 2.6rem;
    height: 2.6rem;
    border-radius: 2.6rem;
    position: absolute;
    top: -1rem;
    border: 1px solid $black;
    background-color: $white;
    text-align: center;
    cursor: pointer;
    z-index: 1;
    -webkit-tap-highlight-color: rgba(0,0,0,0);

    &.ontop {
      z-index: 2;
    }

    &:active {
      border-color: $blue;
      box-shadow: 0 0 0.5rem $blue;
    }
  }

  .handle-left {
    left: 0;
  }

  .handle-right {
    right: 0;
  }

  .slider-fill {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background: $blue;
    pointer-events: none;
    -webkit-user-select: none;
  }

  .slider-transition {
    transition: all 0.5s ease;
  }
}

@function calcRem($size) {
  $remSize: $size / $base-font-size;
  @return #{$remSize}rem;
}