message: Slider redesign
diff: margin: 0 14px;
  }
  + .Slider::before {
  + position: absolute;
  + left: 0;
  + top: 12px;
  + height: 4px;
  + width: 100%;
  + background-color: map(colors, placeholderBackground);
  + border-radius: 2px;
  + content: '';
  + }
  +
  .Slider__in {
  height: 100%;
  }
  .Slider__dragger {
  position: absolute;
  - top: 50%;
  + top: 12px;
  left: 0;
  width: 0;
  height: 0;
  position: absolute;
  top: 0;
  width: 100%;
  + height: 4px;
  + background: map(colors, accentBlue);
  + border-radius: 2px;
  content: '';
  }
  .Slider__thumb {
  position: absolute;
  - top: -14px;
  + top: -12px;
  width: 28px;
  height: 28px;
  transition: transform .1s ease;
  * iOS
  */
  .Slider--ios {
  - background: linear-gradient(to bottom, #b7b7b7 1px, transparent 1px) 0 14px repeat-x;
  }
  .Slider--ios .Slider__in {}
  - .Slider__dragger::before {
  - height: 1px;
  - background: #0f7afb;
  - }
  -
  .Slider--ios .Slider__thumb {
  border-radius: 14px;
  background: #fff;
  * Android
  */
  .Slider--android {
  - background: linear-gradient(to bottom, #bfbfbf 2px, transparent 2px) 0 14px repeat-x;
  }
  .Slider--ios .Slider__in {}
  - .Slider--android .Slider__dragger::before {
  - height: 2px;
  - background: var(--vk-color);
  - }
  -
  - .Slider--android .Slider__thumb {
  - top: -13px;
  - }
  -
  .Slider--android .Slider__thumb::before {
  position: absolute;
  - top: 50%;
  - left: 50%;
  - width: 12px;
  - height: 12px;
  - margin: -6px 0 0 -6px;
  + top: 4px;
  + left: 4px;
  + width: 20px;
  + height: 20px;
  content: '';
  - background: var(--vk-color);
  - border-radius: 6px;
  - transition: box-shadow .14s ease, transform .14s ease;
  - }
  - .Slider--android .Slider__thumb.Slider__thumb--active::before {
  - box-shadow: 0 0 0 3px rgba(127, 127, 127, .2);
  - transform: scale(1.25);
  + background: #fff;
  + border-radius: 10px;
  + box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.12), 0 0 1px 0 rgba(0, 0, 0, 0.12), 0 0 0 0.5px rgba(0, 0, 0, 0.04);
  + box-shadow: 0 1px 3px 0 map(colors, separator), 0 0 1px 0 map(colors, separator), 0 0 0 0.5px rgba(0, 0, 0, 0.04);
  }
  