@import '../../../scss/cod-uxds-bs-base';
@import '../../../scss/cod-uxds-bs-utilities';
@import '../../../scss/cod-uxds-bs-host';
@import '../../../scss/cod-uxds-style-guide';

:host {
  display: block;

  // CSS Custom Properties for theming
  --cod-detail-panel-background-color: transparent;
  --cod-detail-panel-border-color: #dee2e6;
  --cod-detail-panel-border-radius: 0;
  --cod-detail-panel-heading-background: #{$cod-light-grey};
  --cod-detail-panel-heading-color: #{$cod-near-black};
  --cod-detail-panel-body-background: transparent;
  --cod-detail-panel-body-color: #{$cod-near-black};
  --cod-detail-panel-body-padding: 1rem;
  --cod-detail-panel-button-padding: 1rem 1.25rem;
  --cod-detail-panel-button-focus-color: #{$primary};
  --cod-detail-panel-icon-size: 1rem;
}

.cod-detail-panel {
  background-color: var(--cod-detail-panel-background-color);
  border: 1px solid var(--cod-detail-panel-border-color);
  border-radius: var(--cod-detail-panel-border-radius);
  margin-bottom: 1rem;
  font-family: inherit;

  &:last-child {
    margin-bottom: 0;
  }

  &__content {
    display: block;
  }

  &__heading {
    margin: 0;
    display: block;
  }

  &__button {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--cod-detail-panel-button-padding);
    font-size: inherit;
    font-weight: 500;
    line-height: 1.5;
    text-align: left;
    color: var(--cod-detail-panel-heading-color);
    background-color: var(--cod-detail-panel-heading-background);
    border: none;
    border-radius: var(--cod-detail-panel-border-radius);
    cursor: pointer;
    transition:
      color 0.15s ease-in-out,
      background-color 0.15s ease-in-out;

    &:hover {
      background-color: color-mix(
        in srgb,
        var(--cod-detail-panel-border-color) 20%,
        transparent
      );
    }

    &:focus {
      outline: 2px solid var(--cod-detail-panel-button-focus-color);
      outline-offset: 2px;
      z-index: 1;
    }

    &:focus:not(:focus-visible) {
      outline: none;
    }

    &:focus-visible {
      outline: 2px solid var(--cod-detail-panel-button-focus-color);
      outline-offset: 2px;
    }
  }

  &__button-text {
    flex: 1;
    min-width: 0;
  }

  &__icon {
    flex-shrink: 0;
    width: var(--cod-detail-panel-icon-size);
    height: var(--cod-detail-panel-icon-size);
    margin-left: 1rem;
    color: var(--cod-detail-panel-heading-color);
    transition: transform 0.15s ease-in-out;

    svg {
      width: 100%;
      height: 100%;
      display: block;
    }
  }

  &__content--expanded &__icon {
    transform: rotate(0deg);
  }

  &__body {
    padding: var(--cod-detail-panel-body-padding);
    background-color: var(--cod-detail-panel-body-background);
    color: var(--cod-detail-panel-body-color);
    border-top: 1px solid var(--cod-detail-panel-border-color);
  }

  // Bordered variant
  &--bordered {
    border: 2px solid var(--cod-detail-panel-border-color);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);

    .cod-detail-panel__button {
      border-radius: var(--cod-detail-panel-border-radius);
    }
  }

  // When panel is first/last child, adjust border radius
  &:first-child .cod-detail-panel__button {
    border-radius: var(--cod-detail-panel-border-radius);
  }

  &:last-child .cod-detail-panel__button {
    border-radius: var(--cod-detail-panel-border-radius);
  }

  &:first-child:last-child .cod-detail-panel__button {
    border-radius: var(--cod-detail-panel-border-radius);
  }

  // When expanded, adjust button border radius
  &__content--expanded .cod-detail-panel__button {
    border-radius: var(--cod-detail-panel-border-radius);
  }
}

// Group styling when multiple panels are used together
.cod-detail-panel + .cod-detail-panel {
  margin-top: -1px;

  .cod-detail-panel__button {
    border-radius: 0;
  }
}

.cod-detail-panel:first-child .cod-detail-panel__button {
  border-radius: var(--cod-detail-panel-border-radius);
}

.cod-detail-panel:last-child
  .cod-detail-panel__button:not([aria-expanded='true']) {
  border-radius: var(--cod-detail-panel-border-radius);
}

// Responsive adjustments
@media (max-width: 768px) {
  .cod-detail-panel {
    &__button {
      padding: 0.75rem 1rem;
    }

    &__body {
      padding: 0.75rem 1rem;
    }
  }
}