@import url(../var.less);

@popper-prefix: ~"@{prefix}popper";

.@{popper-prefix} {
  @popover-margin: 2;
  .popper__arrow,
  .popper__arrow::after {
    position: absolute;
    display: block;
    width: 0;
    height: 0;
    border-color: transparent;
    border-style: solid;
  }

  .popper__arrow {
    border-width: @popover-arrow-size;
    filter: drop-shadow(0 2px 12px rgba(0, 0, 0, 0.03))
  }

  .popper__arrow::after {
    content: " ";
    border-width: @popover-arrow-size;
  }

  &[x-placement^="top"] {
    margin-bottom: @popover-margin + 6px;
  }

  &[x-placement^="top"] .popper__arrow {
    bottom: -@popover-arrow-size;
    left: 50%;
    margin-right: @tooltip-arrow-size / 2;
    border-top-color: @popover-border-color;
    border-bottom-width: 0;

    &::after {
      bottom: 1px;
      margin-left: -@popover-arrow-size;
      border-top-color: @popover-background-color;
      border-bottom-width: 0;
    }
  }

  &[x-placement^="bottom"] {
    margin-top: @popover-margin + 6px;
  }

  &[x-placement^="bottom"] .popper__arrow {
    top: -@popover-arrow-size;
    left: 50%;
    margin-right: @tooltip-arrow-size / 2;
    border-top-width: 0;
    border-bottom-color: @popover-border-color;

    &::after {
      top: 1px;
      margin-left: -@popover-arrow-size;
      border-top-width: 0;
      border-bottom-color: @popover-background-color;
    }
  }

  &[x-placement^="right"] {
    margin-left: @popover-margin + 6px;
  }

  &[x-placement^="right"] .popper__arrow {
    top: 50%;
    left: -@popover-arrow-size;
    margin-bottom: @tooltip-arrow-size / 2;
    border-right-color: @popover-border-color;
    border-left-width: 0;

    &::after {
      bottom: -@popover-arrow-size;
      left: 1px;
      border-right-color: @popover-background-color;
      border-left-width: 0;
    }
  }

  &[x-placement^="left"] {
    margin-right: @popover-margin + 6px;
  }

  &[x-placement^="left"] .popper__arrow {
    top: 50%;
    right: -@popover-arrow-size;
    margin-bottom: @tooltip-arrow-size / 2;
    border-right-width: 0;
    border-left-color: @popover-border-color;

    &::after {
      right: 1px;
      bottom: -@popover-arrow-size;
      margin-left: -@popover-arrow-size;
      border-right-width: 0;
      border-left-color: @popover-background-color;
    }
  }
}