:host {
  display: flex;
  flex-wrap: nowrap;
  justify-content: flex-start;
  align-items: stretch;
  overflow: hidden;
  width: 100%;
  height: 100%;

  & > .as-split-gutter {
    flex-grow: 0;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;

    // Transparent gutter to mimic chrome devtools invisible gutter technique.
    background-color: transparent;

    & > .as-split-gutter-icon {
      width: 100%;
      height: 100%;
      background-position: center center;
      background-repeat: no-repeat;
    }
  }

  ::ng-deep > .as-split-area {
    flex-grow: 0;
    flex-shrink: 0;
    overflow-x: hidden;
    overflow-y: hidden;

    /* When <as-split-area [visible]="false"> force size to 0. */

    &.as-hidden {
      flex: 0 1 0 !important;
      overflow-x: hidden;
      overflow-y: hidden;
    }
  }

  &.as-horizontal {
    flex-direction: row;

    & > .as-split-gutter {
      flex-direction: row;
      cursor: ew-resize;
      height: 100%; // <- Fix safari bug about gutter height when direction is horizontal.
      position: relative;
      left: 5px; // position so that the visible border aligns with the middle pixels of the invisible gutter

      & > .as-split-gutter-icon {
        background-image: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAeCAYAAADkftS9AAAAIklEQVQoU2M4c+bMfxAGAgYYmwGrIIiDjrELjpo5aiZeMwF+yNnOs5KSvgAAAABJRU5ErkJggg==');
      }
    }

    ::ng-deep > .as-split-area {
      height: 100%;

      &:not(:last-of-type) {
        margin-right: -9px; // size of invisible gutter, pushes split area right so that content can be displayed all the way to the visible border
      }

      &:not(:first-of-type) {
        border-left: 1px solid var(--color-separator);
      }
    }
  }

  &.as-vertical {
    flex-direction: column;

    & > .as-split-gutter {
      flex-direction: column;
      cursor: ns-resize;
      width: 100%;
      position: relative;
      top: 5px; // position so that the visible border aligns with the middle pixels of the invisible gutter

      .as-split-gutter-icon {
        background-image: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB4AAAAFCAMAAABl/6zIAAAABlBMVEUAAADMzMzIT8AyAAAAAXRSTlMAQObYZgAAABRJREFUeAFjYGRkwIMJSeMHlBkOABP7AEGzSuPKAAAAAElFTkSuQmCC');
      }
    }

    ::ng-deep > .as-split-area {
      width: 100%;

      &:not(:last-of-type) {
        margin-bottom: -9px; // size of invisible gutter, pushes split area down so that content can be displayed all the way to the visible border
      }

      &:not(:first-of-type) {
        border-top: 1px solid var(--color-separator);
      }

      &.as-hidden {
        max-width: 0;
      }
    }
  }

  /* When disabled remove gutters background image and specific cursor. */

  &.as-disabled {
    & > .as-split-gutter {
      cursor: default;
    }
  }

  /* Add transition only when transition enabled + split initialized + not currently dragging. */

  &.as-transition.as-init:not(.as-dragging) {
    & > .as-split-gutter,
    ::ng-deep > .as-split-area {
      transition: flex-basis 0.3s;
    }
  }
}
