.overlay {
  padding-bottom: 100px;
  padding-top: 100px;
  overflow: scroll;
  position: fixed;
  display: none;
  @include zero;
  height: 100%;
  width: 100%;
  z-index: 4;

  &._load {
    background-color: $smoke;
    font-size: 54px;
    color: $gun;

    &.--demo {
      @extend %overlay_grid;
      @extend %grid_load;
    }
  }
}