//
// Base styles
//

.accordion-button {
  overflow-anchor: none;

  &:not(.collapsed) {
    color: $accordion-button-active-color;
    background-color: $accordion-button-active-bg;
    box-shadow: inset 0 ($accordion-border-width * -1) 0 rgba(229, 231, 235);

    &::after {
      background-image: escape-svg($accordion-button-active-icon);
      transform: $accordion-icon-transform;
    }
  }

  // Accordion icon
  &::after {
    flex-shrink: 0;
    width: $accordion-icon-width;
    height: $accordion-icon-width;
    margin-left: auto;
    content: '';
    background-image: escape-svg($accordion-button-icon);
    background-repeat: no-repeat;
    background-size: $accordion-icon-width;
    @include transition($accordion-icon-transition);
  }

  &:hover {
    z-index: 2;
  }

  &:focus {
    z-index: 3;
  }
}

.accordion-item {
  &:first-of-type {
    @include border-top-radius($accordion-border-radius);

    .accordion-button {
      @include border-top-radius($accordion-inner-border-radius);
    }
  }

  &:not(:first-of-type) {
    border-top: 0;
  }

  // Only set a border-radius on the last item if the accordion is collapsed
  &:last-of-type {
    @include border-bottom-radius($accordion-border-radius);

    .accordion-button {
      &.collapsed {
        @include border-bottom-radius($accordion-inner-border-radius);
      }
    }

    .accordion-collapse {
      @include border-bottom-radius($accordion-border-radius);
    }
  }
}