//
// Copyright IBM Corp. 2020, 2026
//
// This source code is licensed under the Apache-2.0 license found in the
// LICENSE file in the root directory of this source tree.
//

// Other Carbon settings.
@use '@carbon/styles/scss/theme' as *;
@use '@carbon/styles/scss/breakpoint' as *;
@use '@carbon/styles/scss/grid/flexbox';
@use '@carbon/styles/scss/motion' as *;
@use '@carbon/styles/scss/spacing' as *;
@use '@carbon/styles/scss/type';
@use '@carbon/styles/scss/utilities';
@use '@carbon/styles/scss/config' as carbon-config;
@use '@carbon/layout/scss/convert' as *;

// Standard imports.
@use '../../global/styles/project-settings' as *;
@use '../../global/styles/mixins' as *;

// PageHeader uses the following IBM Products components:
// ActionBar, BreadcrumbWithOverflow, TagSet, ButtonSetWithOverflow
@use '../ActionBar/action-bar';
@use '../BreadcrumbWithOverflow/breadcrumb-with-overflow';
@use '../TagSet/tag-set';
@use '../ButtonSetWithOverflow/button-set-with-overflow';

$block-class: #{$pkg-prefix}--page-header;
$breadcrumb-block-class: #{$pkg-prefix}--breadcrumb-with-overflow;

$raised-z-index: 99;
$z-index-header-minus: utilities.z('header') - 1;

$left-section-std-width: 60%;
$right-section-std-width: 100% - $left-section-std-width;
$left-section-alt-width: 75%;
$right-section-alt-width: 100% - $left-section-alt-width;

$animation: background-appear;
// This transitions the background-color between from-color and to-color
$duration: 1000ms;

@keyframes background-appear {
  from {
    /* stylelint-disable-next-line carbon/theme-use */
    background-color: var(--from-color);
  }

  to {
    /* stylelint-disable-next-line carbon/theme-use */
    background-color: var(--to-color);
  }
}
@keyframes background-and-shadow-appear {
  from {
    /* stylelint-disable-next-line carbon/theme-use */
    background-color: var(--from-color);
    /* stylelint-disable-next-line carbon/theme-use */
    box-shadow: 0 1px 0 var(--from-color);
  }

  to {
    /* stylelint-disable-next-line carbon/theme-use */
    background-color: var(--to-color);
    /* stylelint-disable-next-line carbon/theme-use */
    box-shadow: 0 1px 0 var(--to-color-shadow);
  }
}

@mixin appearingBackground(
  $with-shadow: false,
  $from-color: $background,
  $to-color: $layer-01,
  $to-color-shadow: $layer-accent-01
) {
  // stylelint-disable-next-line carbon/theme-use
  --from-color: #{$from-color};
  // stylelint-disable-next-line carbon/theme-use
  --to-color: #{$to-color};
  // stylelint-disable-next-line carbon/theme-use
  --to-color-shadow: #{$to-color-shadow};

  position: absolute;
  display: block;

  /* stylelint-disable-next-line carbon/motion-duration-use, carbon/motion-easing-use -- non-standard duration used */
  animation: $animation $duration linear paused forwards;
  // Added separately for clarity
  animation-delay: calc(
    -1 * $duration * var(--#{$block-class}--background-opacity)
  );
  block-size: 100%;
  content: '';
  inline-size: 100%;
  inset-block-start: 0;
  inset-inline-start: 0;

  @if $with-shadow {
    $animation: background-and-shadow-appear;
  }
}

@include block-wrap($block-class) {
  &.#{$block-class} {
    /* Bleed class for the background */
    position: sticky;
    /* z-index used to raise above any position relative content as per Carbon header */
    /* dropped  1 below Carbon header so as not to overlay the side panel */
    z-index: $z-index-header-minus;
    display: inline-block; /* cause top/bottom margin to reserve space */
    background-color: $background;
    border-block-end: 1px solid $border-subtle-00;
    color: $text-primary;
    inline-size: 100%;
    /* stylelint-disable-next-line carbon/layout-use */
    inset-block-start: var(--#{$block-class}--header-top);

    /* custom props */
    --#{$block-class}--breadcrumb-title-visibility: hidden;
    --#{$block-class}--breadcrumb-title-opacity: 1;
    --#{$block-class}--breadcrumb-top: 0; //1
    --#{$block-class}--background-opacity: 1;
    --#{$block-class}--breadcrumb-title-top: initial;
    --#{$block-class}--button-set-in-breadcrumb-width-px: initial;
  }

  &.#{$block-class}--without-background {
    border-block-end: none;
  }

  &::before {
    @include appearingBackground(true);

    z-index: -1;
  }

  .#{$block-class}--width--xl {
    padding-inline: $spacing-07;
  }

  .#{$block-class}__breadcrumb-row {
    position: sticky;
    z-index: $raised-z-index;
    inset-block-start: var(--#{$block-class}--breadcrumb-top); //2
    min-block-size: $spacing-08;

    + .#{$block-class}__last-row-buffer--active {
      block-size: $spacing-02;
    }
  }

  .#{$block-class}__breadcrumb-row:not(
      .#{$block-class}__breadcrumb-row--has-action-bar
    ) {
    // lifts up page title when there is no action bar
    min-block-size: $spacing-08;
  }

  .#{$block-class}__breadcrumb-row--container {
    display: flex;
    flex-wrap: nowrap;
    min-inline-size: 100%;
  }

  .#{$block-class}__has-page-actions-without-action-bar {
    max-inline-size: calc(0.6 * (100% + 2 * #{$spacing-05}));
    // NOTE: the extra spacing accounts for carbon margins
    min-inline-size: calc(0.6 * (100% + 2 * #{$spacing-05}));
  }

  .#{$block-class}__has-page-actions-with-title-collapsed {
    max-inline-size: none;
  }

  .#{$block-class}__has-page-actions-without-action-bar
    .#{$block-class}__has-page-actions-without-action-bar {
    min-inline-size: 100%;
  }

  .#{$block-class}__breadcrumb-row--has-action-bar
    .#{$block-class}__breadcrumb-row--container {
    min-inline-size: calc(
      100% +
        (
          var(--#{$block-class}--width-px) - var(
              --#{$block-class}--breadcrumb-row-width-px
            )
        ) /
        2
    );
  }
  .#{$block-class}__breadcrumb-row::after {
    position: absolute;
    display: block;
    block-size: 1px;
    /* creates a full width box shadow without causing scroll */
    box-shadow:
      0 1px 0 0 $layer-accent-01,
      0 1px 0 0 $layer-accent-01;
    content: '';
    inline-size: 50vw;
    inset-block-end: 0;
    inset-inline-start: 50%;
    opacity: 0;
    transform: translateX(-50%) scaleX(1);
    // stylelint-disable-next-line carbon/motion-easing-use
    transition: all $duration-moderate-01 ease-out;
  }

  .#{$block-class}__breadcrumb-row--next-to-tabs:not(
      .#{$block-class}__has-page-actions-without-action-bar
    )::after,
  .#{$block-class}__has-page-actions-without-action-bar.#{$block-class}__has-page-actions-with-title-collapsed::after,
  .#{$block-class}__breadcrumb-row--has-action-bar::after {
    /* creates a full width box shadow without causing scroll */
    box-shadow:
      25vw 1px 0 0 $layer-accent-01,
      -25vw 1px 0 0 $layer-accent-01;
    opacity: 1;
  }

  .#{$block-class}__breadcrumb-container {
    inline-size: 100%;
  }

  .#{$block-class}__action-bar-column {
    display: none;
  }

  .#{$block-class}__breadcrumb-row--has-breadcrumbs
    .#{$block-class}__action-bar-column {
    flex: 0 1 $right-section-alt-width;
    // back button displayed only
    max-inline-size: $right-section-alt-width;

    @include breakpoint(md) {
      flex: 1 0 $right-section-std-width;
      max-inline-size: $right-section-std-width;
    }
  }

  .#{$block-class}__breadcrumb-row--has-action-bar
    .#{$block-class}__action-bar-column {
    display: initial;
  }

  .#{$block-class}__action-bar-column-content {
    display: flex;
    justify-content: flex-end;
    white-space: nowrap;

    @include breakpoint-up('lg') {
      flex-wrap: nowrap; /* assume enough space */
    }
  }

  .#{$block-class}__breadcrumb-row .#{$block-class}__page-actions {
    position: relative;
    display: inline-block;
    flex: 1 1 var(--#{$block-class}--button-set-in-breadcrumb-width-px);
    inline-size: 100%;
    max-inline-size: var(--#{$block-class}--button-set-in-breadcrumb-width-px);
    opacity: 0;
    transition: opacity $duration-moderate-02 motion('entrance', 'productive');
    visibility: hidden;
    white-space: nowrap;
  }

  .#{$block-class}__breadcrumb-row
    .#{$block-class}__page-actions--in-breadcrumb {
    opacity: 1;
    visibility: visible;
  }

  .#{$block-class}__breadcrumb-column {
    overflow: hidden; /* required for ellipsis in title, title not visible in breadcrumb with back arrow */
    flex: 0 0 100%;
    max-inline-size: 100%;

    @include breakpoint(md) {
      overflow: hidden; /* required for ellipsis in title, title not visible in breadcrumb with back arrow */
    }
  }

  .#{$block-class}__breadcrumb-row--has-action-bar.#{$block-class}__breadcrumb-row
    .#{$block-class}__breadcrumb-column {
    flex: 0 1 $left-section-alt-width;
    // back button displayed only
    max-inline-size: $left-section-alt-width;

    @include breakpoint(md) {
      flex: 0 1 $left-section-std-width;
      max-inline-size: $left-section-std-width;
    }
  }

  .#{$block-class}__has-page-actions-without-action-bar.#{$block-class}__breadcrumb-row
    .#{$block-class}__breadcrumb-column {
    flex: 0 1 100%;
    // the width of the breadcrumb column is adjusted elsewhere to compensate
    max-inline-size: 100%;
  }

  .#{$block-class}__breadcrumb-column--background,
  .#{$block-class}__action-bar-column--background {
    position: relative;
  }

  .#{$block-class}__breadcrumb-column--background::before,
  .#{$block-class}__action-bar-column--background::before {
    @include appearingBackground();
  }

  .#{$block-class}__action-bar-column--influenced-by-collapse-button {
    padding-inline-end: $spacing-08;
  }

  .#{$block-class}__breadcrumb {
    @include type.type-style('label-01');

    padding-block-start: $spacing-04;
  }

  .#{$block-class}--breadcrumb.#{$breadcrumb-block-class}__with-items {
    padding-block-start: 0;
    @include breakpoint(md) {
      padding-block-start: $spacing-04;
    }
  }

  .#{$block-class}__breadcrumb .#{carbon-config.$prefix}--breadcrumb-item {
    margin-inline-end: $spacing-02;
  }

  .#{$block-class}__breadcrumb
    .#{carbon-config.$prefix}--breadcrumb-item::after {
    margin-inline-start: $spacing-02;
  }

  .#{$block-class}__breadcrumb .#{carbon-config.$prefix}--breadcrumb-item,
  .#{$block-class}__breadcrumb
    .#{carbon-config.$prefix}--breadcrumb-item
    .#{carbon-config.$prefix}--link {
    @include type.type-style('label-01');
  }

  .#{$block-class}__breadcrumb-title {
    position: relative;

    &:not(.#{$block-class}__breadcrumb-title--pre-collapsed) {
      opacity: var(--#{$block-class}--breadcrumb-title-opacity);

      transform: translateY(var(--#{$block-class}--breadcrumb-title-top));
      visibility: var(--#{$block-class}--breadcrumb-title-visibility);
    }
  }

  .#{$block-class}__breadcrumb-container--hidden
    .#{$block-class}__breadcrumb-title.#{$block-class}__breadcrumb-title {
    overflow: initial;
  }

  .#{$block-class}__action-bar {
    flex: 1 1 var(--#{$block-class}--max-action-bar-width-px);
    inline-size: 100%;
    margin-block-start: calc(-1 * #{$spacing-04}); /* align with breadcrumb */
    max-inline-size: var(--#{$block-class}--max-action-bar-width-px);
    padding-block-start: $spacing-04;
    vertical-align: top;
    white-space: nowrap;
  }

  .#{$block-class}__title-row {
    --title-row-margin-top: #{$spacing-01}; /* spacing needed in case of editable title, otherwise top of focus indicator hidden */

    margin-block-end: 0;
    transform: translateY(
      $spacing-01
    ); // position adjusted for editable title focus outline

    @include breakpoint-up('md') {
      flex-wrap: nowrap; /* assume enough space */
    }

    &.#{$block-class}__title-row--under-action-bar {
      margin-block-start: $spacing-05;
      transform: translateY(0); // Not needed under action bar
    }

    + .#{$block-class}__last-row-buffer--active {
      block-size: $spacing-07;
    }

    &.#{$block-class}__title-row--spacing-below-03 {
      margin-block-end: $spacing-03;
    }

    &.#{$block-class}__title-row--spacing-below-05 {
      + .#{$block-class}__last-row-buffer--active {
        block-size: $spacing-05;
      }
    }

    &.#{$block-class}__title-row--spacing-below-06 {
      margin-block-end: $spacing-06;
    }

    &.#{$block-class}__title-row--no-breadcrumb-row {
      margin-block-start: $spacing-07;
    }
  }

  &.#{$block-class}--has-navigation
    .#{$block-class}__title-row
    + .#{$block-class}__last-row-buffer--active {
    block-size: calc(#{$spacing-06});
  }

  &.#{$block-class}--has-navigation-tags-only
    .#{$block-class}__title-row
    + .#{$block-class}__last-row-buffer--active {
    block-size: calc(#{$spacing-05});
  }

  .#{$block-class}__title-row--sticky {
    position: sticky;
  }

  .#{$block-class}__breadcrumb-row--has-breadcrumbs
    + .#{$block-class}__title-row--sticky {
    // stylelint-disable-next-line carbon/layout-use
    inset-block-start: calc(
      var(--#{$block-class}--breadcrumb-top) - var(--title-row-margin-top)
    );
  }

  .#{$block-class}__title-column {
    flex: 0 0 100%;
    min-block-size: 40px;

    @include breakpoint-up('md') {
      flex: 1 0 $left-section-std-width;
      max-inline-size: $left-section-std-width;
    }
  }

  .#{$block-class}__tooltip {
    flex-basis: auto;
    min-inline-size: 0;

    button {
      border-block-end: none;
      cursor: default;
    }
  }
  .#{$block-class}__titleText {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .#{$block-class}__title {
    @include type.type-style('heading-04');

    display: flex;
    min-block-size: $spacing-08;
  }

  .#{$block-class}__title--editable {
    display: flex;
    overflow: visible;
    // move to match non-editable version position
    margin-block-start: calc(-1 * #{$spacing-01});
    margin-inline-start: calc(-1 * #{$spacing-05});
  }

  .#{$block-class}__title-skeleton {
    block-size: $spacing-07;
  }

  .#{$block-class}__title--fades {
    opacity: calc(1 - var(--#{$block-class}--breadcrumb-title-opacity));
  }

  .#{$block-class}__title-icon {
    margin-inline-end: $spacing-04;
    // stylelint-disable-next-line carbon/layout-use
    transform: translateY(
      -$spacing-01
    ); // positional tweak requested by design review

    vertical-align: middle;
  }

  .#{$block-class}__page-actions {
    flex: 0 0 100%;
    margin-block-start: $spacing-05;
    white-space: nowrap;

    @include breakpoint-up('md') {
      flex: 0 1 $right-section-std-width;
      margin-block-start: 0;
      max-inline-size: $right-section-std-width;
    }
  }

  .#{$block-class}__page-actions
    .#{carbon-config.$prefix}--btn-set
    .#{carbon-config.$prefix}--btn {
    inline-size: initial;
  }

  .#{$block-class}__action-bar-column .#{$block-class}__page-actions {
    margin-block-start: 0;
  }

  .#{$block-class}__page-actions-container {
    justify-content: flex-start;

    @include breakpoint-up('md') {
      justify-content: flex-end;
    }
  }

  .#{$block-class}__title-row .#{$block-class}__page-actions {
    position: relative;
    opacity: 1;
    transition: all $duration-fast-02 motion('entrance', 'productive');
    transition-property: opacity, visibility;
    visibility: visible;
  }

  .#{$block-class}__title-row .#{$block-class}__page-actions::before {
    @include appearingBackground();
  }

  .#{$block-class}__page-actions-content {
    position: relative; // ensure appears over ::before
    display: flex;
    overflow: hidden;
    justify-content: flex-end;
    block-size: 100%;
    inline-size: 100%;
  }

  .#{$block-class}__title-row .#{$block-class}__page-actions--in-breadcrumb {
    opacity: 0;
    visibility: hidden;
  }

  .#{$block-class}__subtitle-row {
    margin-block-start: $spacing-03;

    @include breakpoint-up('md') {
      max-inline-size: $left-section-std-width;
    }

    + .#{$block-class}__last-row-buffer--active {
      block-size: $spacing-05;
    }
  }

  .#{$block-class}__subtitle {
    @include type.type-style('body-01');
  }

  .#{$block-class}__subtitle-tooltip
    .#{carbon-config.$prefix}--definition-term {
    border-block-end: 0;
    letter-spacing: inherit;
  }

  // overwrites the existing styles to make the popover bigger because in some cases the narrow space can be too constricting for the header
  .#{$block-class}__subtitle-tooltip
    .#{carbon-config.$prefix}--popover-content.#{carbon-config.$prefix}--definition-tooltip {
    max-inline-size: fit-content;
  }

  .#{$block-class}__subtitle-text {
    display: -webkit-box;
    overflow: hidden;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    line-clamp: 2;
  }

  .#{$block-class}__available-row {
    @include type.type-style('body-01');

    margin-block-start: $spacing-03;

    + .#{$block-class}__last-row-buffer--active {
      block-size: $spacing-05;
    }
  }

  .#{$block-class}__title-row + .#{$block-class}__available-row {
    margin-block-start: $spacing-05;
  }

  .#{$block-class}__available-row * {
    // default content of available row to body-long-01
    @include type.type-style('body-01');
  }

  .#{$block-class}__navigation-row {
    flex-wrap: wrap-reverse;
    margin-block-start: 0;

    .#{carbon-config.$prefix}--content-switcher {
      box-sizing: content-box;
      padding-block-end: $spacing-05;
    }
  }

  .#{$block-class}__navigation-row .#{carbon-config.$prefix}--tab-content {
    display: none; /* need to figure out how to handle the tab content */
  }

  .#{$block-class}__action-bar-column--has-page-actions {
    display: block;
  }

  .#{$block-class}__has-page-actions-with-title-collapsed
    .#{$block-class}__action-bar-column--has-page-actions {
    display: block;
  }

  .#{$block-class}__navigation-tabs {
    margin-inline-start: calc(-1 * #{$spacing-05});
  }

  .#{$block-class}__navigation-row--has-tags .#{$block-class}__navigation-tabs {
    flex: 0 1 $left-section-alt-width;
    max-inline-size: $left-section-alt-width;
  }

  .#{$block-class}__navigation-tags {
    display: flex;
    flex: 1 0 $right-section-alt-width;
    align-items: center;
    justify-content: flex-end;
    max-inline-size: $right-section-alt-width;
    padding-block: $spacing-02;
    // allow space for expand/collapse if we have a background
    padding-inline-end: $spacing-07;
    text-align: end;
    white-space: nowrap;

    @include breakpoint(md) {
      padding-inline-end: $spacing-05;
    }
  }

  .#{$block-class}__navigation-tags--tags-only {
    justify-content: flex-start;
    margin-inline-start: calc(-1 * #{$spacing-02});
    padding-block: 0 $spacing-04;
    text-align: initial;
  }

  .#{$block-class}__navigation-row
    .#{carbon-config.$prefix}--content-switcher-btn {
    background-color: $background;
  }

  .#{$block-class}__collapse-expand-toggle {
    position: absolute;
    z-index: $raised-z-index + 1;
    inset-block-end: 0;
    inset-inline-end: 0;
  }

  .#{$block-class}__collapse-expand-toggle
    .#{carbon-config.$prefix}--btn__icon {
    // transform: rotate(-90deg); // accordion does this, but it feels odd in page header
    transition: all $duration-slow-01 motion(standard, productive);
  }

  .#{$block-class}__collapse-expand-toggle--collapsed svg {
    // transform: rotate(90deg);
    transform: scaleY(-1);
  }
}

:root {
  --#{$block-class}--tagset-tooltip-offset: 0;
}

.#{$block-class}__tagset-tooltip.#{$block-class}__tagset-tooltip {
  // stylelint-disable-next-line
  position: var(--#{$block-class}--tagset-tooltip-position) !important;
  // stylelint-disable-next-line
  inset-block-start: var(--#{$block-class}--tagset-tooltip-offset) !important;
}

.#{$block-class}__navigation-tags-overflow.#{carbon-config.$prefix}--tooltip {
  z-index: $z-index-header-minus;
}

.#{$block-class}__action-bar-menu-options.#{carbon-config.$prefix}--overflow-menu-options,
.#{carbon-config.$prefix}--breadcrumb-menu-options.#{carbon-config.$prefix}--overflow-menu-options,
.#{$block-class}__button-set-menu-options.#{carbon-config.$prefix}--overflow-menu-options {
  z-index: $z-index-header-minus;
}

.#{$block-class}__button-set-menu-options
  > button.#{carbon-config.$prefix}--menu-button__trigger {
  min-inline-size: 0;
}

/// Experimental Page header styles
/// @access public
/// @group page-header
@include block-wrap(#{$block-class}__next) {
  &.#{$block-class} {
    position: sticky;
    background-color: $layer-01;
    border-block-end: 1px solid $border-subtle-01;
    /* stylelint-disable-next-line carbon/layout-use */
    inset-block-start: var(--#{$pkg-prefix}-page-header-header-top);
  }

  .#{$block-class}__breadcrumb-bar {
    position: sticky;
    z-index: 1;
    background-color: $layer;
    block-size: to-rem(40px);
    /* stylelint-disable-next-line carbon/layout-use */
    inset-block-start: var(--#{$pkg-prefix}-page-header-breadcrumb-top);
  }

  .#{$block-class}__breadcrumb-bar .#{$carbon-prefix}--subgrid,
  .#{$block-class}__breadcrumb-bar .#{$carbon-prefix}--css-grid {
    block-size: 100%;
  }

  .#{$block-class}__breadcrumb-bar
    .#{$carbon-prefix}--css-grid
    .#{$carbon-prefix}--css-grid-column {
    block-size: to-rem(40px);
  }

  .#{$block-class}__breadcrumb-bar
    .#{$carbon-prefix}--css-grid
    .#{$carbon-prefix}--css-grid-column,
  .#{$block-class}__breadcrumb-bar .#{$block-class}__breadcrumb-container {
    block-size: to-rem(40px);

    .#{$block-class}__breadcrumb-wrapper {
      align-items: center;
      block-size: inherit;
    }
  }

  .#{$block-class}__breadcrumb-container {
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    block-size: 100%;
    inline-size: 100%;
  }

  .#{$block-class}__breadcrumb__actions-flush {
    .#{$carbon-prefix}--css-grid {
      padding-inline-end: 0;
    }

    .#{$carbon-prefix}--css-grid-column {
      margin-inline-end: 0;
    }
  }

  .#{$block-class}__breadcrumb-bar-border {
    border-block-end: 1px solid $border-subtle-01;
  }

  .#{$block-class}__breadcrumb__icon {
    margin-inline-end: $spacing-03;

    svg {
      fill: $icon-primary;
    }
  }

  .#{$block-class}__breadcrumb__actions {
    display: inline-flex;
    flex: 0 0 auto;
    justify-content: flex-end;
    min-inline-size: 75%;

    @include breakpoint(md) {
      min-inline-size: 40%;
    }
  }

  .#{$block-class}__breadcrumb__content-actions {
    margin-inline-end: $spacing-04;
  }

  .#{$block-class}__breadcrumb-wrapper {
    display: inline-flex;
    flex: 1 1 auto;
    min-inline-size: 0;

    @include breakpoint(md) {
      min-inline-size: 60%;
    }
  }

  .#{$block-class}__breadcrumb-wrapper .#{$block-class}-breadcrumb-overflow {
    flex: 1 1 0%;
    min-inline-size: 0;

    .#{$carbon-prefix}--breadcrumb {
      display: flex;
      flex-wrap: nowrap;
    }

    .#{$carbon-prefix}--breadcrumb-item[data-fixed='true'] {
      .#{$carbon-prefix}--link {
        display: block;
        overflow: hidden;
        inline-size: 100%;
        text-overflow: ellipsis;
        white-space: nowrap;
      }

      @include breakpoint-down(lg) {
        .#{$carbon-prefix}--link {
          inline-size: 75%;
        }
      }

      @include breakpoint-down(md) {
        .#{$carbon-prefix}--link {
          inline-size: 25%;
        }
      }
    }
  }

  .#{$block-class}__breadcrumb-wrapper
    .#{$block-class}-breadcrumb-overflow-item {
    display: none;
    opacity: 0;
  }
  .#{$block-class}__breadcrumb-wrapper
    .#{$block-class}-overflow-breadcrumb-item-with-items {
    display: flex;
    opacity: 1;
  }

  .#{$block-class}__content {
    padding: $spacing-06 0;
    background-color: $layer;
  }

  .#{$block-class}__content__title-wrapper {
    @include breakpoint-down(md) {
      display: flex;
      flex-direction: column;
      grid-gap: $spacing-05;
    }

    display: grid;
    gap: $spacing-05;
    grid-template-columns: auto minmax(
        var(--page-header-title-grid-width, 0),
        1fr
      );
    margin-block-end: $spacing-05;
    min-block-size: to-rem(40px);
  }

  .#{$block-class}__content__start {
    display: flex;
    flex-wrap: wrap;
    gap: $spacing-05;
  }

  .#{$block-class}__content__title-container {
    display: flex;
  }

  .#{$block-class}__content__title-container
    .#{$carbon-prefix}--definition-term {
    border-block-end: none;
  }

  .#{$block-class}__content__contextual-actions {
    display: flex;
  }

  .#{$block-class}__content__title {
    @include type.type-style('productive-heading-04');

    display: -webkit-box;
    overflow: hidden;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    max-inline-size: to-rem(640px);
    text-overflow: ellipsis;
    white-space: normal;
  }

  .#{$block-class}__content:has(.#{$block-class}__content__contextual-actions)
    .#{$block-class}__content__title {
    -webkit-line-clamp: 1;
  }

  .#{$block-class}__content__icon {
    margin-inline-end: $spacing-05;

    svg {
      fill: $icon-primary;
    }
  }

  .#{$block-class}__content__page-actions {
    display: flex;
    justify-content: right;
    /* stylelint-disable-next-line carbon/motion-easing-use */
    transition: opacity motion(standard, productive) $duration-moderate-02;

    &.#{$block-class}__content__page-actions--clipped {
      opacity: 0;
      visibility: hidden;
    }

    @include breakpoint-down('md') {
      justify-content: left;
      margin-block-start: 0;
    }
  }

  .#{$block-class}__content__page-actions
    .#{$carbon-prefix}--menu-button__trigger:not(
      .#{$carbon-prefix}--btn--ghost
    ) {
    min-inline-size: 0;
  }

  .#{$block-class}__content__subtitle {
    @include type.type-style('productive-heading-03');

    margin-block-end: $spacing-03;
  }

  .#{$block-class}__content__body {
    @include type.type-style('body-01');

    margin-block-start: $spacing-03;
    max-inline-size: to-rem(640px);
  }

  [data-hidden]:not([data-fixed]) {
    display: none;
  }

  .#{$block-class}__hero-image {
    display: flex;
    overflow: hidden;
    align-items: center;
    justify-content: flex-end;
    block-size: 100%;
  }

  .#{$block-class}__tab-bar {
    background-color: $layer;
  }

  .#{$block-class}__tab-bar--tablist {
    display: grid;
    gap: $spacing-07;
    grid-template-columns: auto minmax(0, 1fr);
  }

  .#{$pkg-prefix}--page-header__tab-bar--tablist
    .#{$pkg-prefix}--page-header__tags {
    display: flex;
    align-self: center;
    justify-content: flex-end;
  }

  .#{$pkg-prefix}--page-header__tab-bar--tablist.#{$pkg-prefix}--page-header__tab-bar--with-scroller
    .#{$pkg-prefix}--page-header__tags {
    display: flex;
    align-items: center;
    justify-content: right;
    transform: translateX(calc($spacing-06 * -1));

    @include breakpoint(md) {
      padding-inline-end: $spacing-03;
      transform: translateX(0);
    }
    @include breakpoint(max) {
      padding-inline-end: $spacing-05;
    }
  }

  .#{$carbon-prefix}--tabs .#{$carbon-prefix}--tab--overflow-nav-button {
    background-color: $layer-01;

    &.#{$carbon-prefix}--tab--overflow-nav-button--next::before {
      background: linear-gradient(to right, rgba(255, 255, 255, 0), $layer-01);
    }

    &.#{$carbon-prefix}--tab--overflow-nav-button--previous::before {
      background: linear-gradient(to left, rgba(255, 255, 255, 0), $layer-01);
    }
  }

  // **** This is a temporary work-around until the focus clipping
  // **** for overflowing tabs is resolved in core.
  // **** https://github.com/carbon-design-system/carbon/issues/19942
  .#{$carbon-prefix}--tabs .#{$carbon-prefix}--tabs__nav-link {
    margin-inline-end: $spacing-01;
  }

  .#{$block-class}__tags {
    display: flex;
    align-items: center;
    justify-content: right;
  }

  .#{$block-class}__tags-popover-list {
    display: flex;
    flex-direction: column;
    padding: $spacing-05;
  }

  .#{$block-class}--tag-overflow-container {
    align-content: center;
    text-align: end;
    @include breakpoint(sm) {
      transform: translateX(calc(-1 * #{$spacing-06}));
    }
    @include breakpoint(md) {
      transform: translateX(calc(-1 * #{$spacing-03}));
    }
    @include breakpoint(lg) {
      transform: translateX($spacing-08);
    }

    .#{$carbon-prefix}--tag {
      margin-inline-end: $spacing-03;
    }
  }

  .#{$block-class}--tag-overflow-popover__hidden {
    visibility: hidden;
  }

  .#{$block-class}--tag-overflow-container__has-no-hidden-items {
    /* stylelint-disable-next-line carbon/layout-use */
    transform: translateX($spacing-07);
  }

  .#{$block-class}__tag-item {
    flex-shrink: 0;
  }

  .#{$pkg-prefix}--page-header--scroller-button-icon {
    /* stylelint-disable-next-line */
    transition: transform $transition-base;
    @media (prefers-reduced-motion: reduce) {
      transition: none;
    }
  }

  .#{$pkg-prefix}--page-header--scroller-button-icon-collapsed {
    transform: rotate(-180deg);
  }

  .#{$pkg-prefix}--page-header--scroller-button-container {
    position: absolute;
    inset-block-end: 0;
    inset-inline-end: $spacing-01;
  }

  @keyframes page-header-title-breadcrumb-animation {
    0% {
      opacity: 0;
      transform: translateY($spacing-05);
    }

    5% {
      opacity: 1;
      transform: translateY(0);
    }

    100% {
      opacity: 1;
      transform: translateY(0);
    }
  }

  @keyframes page-header-title-breadcrumb-animation-reduced-motion {
    0% {
      opacity: 0;
    }

    5% {
      opacity: 1;
    }

    100% {
      opacity: 1;
    }
  }

  .#{$pkg-prefix}--page-header__breadcrumb__content-actions {
    opacity: 0;
  }

  .#{$pkg-prefix}--page-header__breadcrumb__content-actions-with-global-actions--show {
    opacity: 1;
    transition:
      /* stylelint-disable-next-line */ opacity
      motion(standard, productive) $duration-moderate-01;
  }

  .#{$pkg-prefix}--page-header-title-breadcrumb {
    opacity: 0;
    transform: translateY($spacing-05);
    transition:
      /* stylelint-disable-next-line */
      transform motion(standard, productive) $duration-moderate-01,
      opacity motion(standard, productive) $duration-moderate-01;
    // Target browsers that do not yet support animation-timeline: scroll()
    @supports not (animation-timeline: scroll()) {
      &.#{$pkg-prefix}--page-header-title-breadcrumb-show {
        @media (prefers-reduced-motion: reduce) {
          transform: translateY(0);
          /* stylelint-disable-next-line */
          transition: opacity motion(standard, productive) $duration-moderate-01;
        }
      }
    }

    &.#{$pkg-prefix}--page-header-title-breadcrumb-show__with-content-element {
      // `animation-timeline: scroll()` only currently supported in Chromium based browsers
      @supports (animation-timeline: scroll()) {
        animation-direction: alternate;
        animation-duration: 1ms; /* Firefox requires this to apply the animation */
        animation-name: page-header-title-breadcrumb-animation;
        animation-timeline: scroll(block nearest);

        @media (prefers-reduced-motion: reduce) {
          animation-name: page-header-title-breadcrumb-animation-reduced-motion;
          transform: translateY(0);
        }
      }
    }
    &.#{$pkg-prefix}--page-header-title-breadcrumb-show__without-content-element {
      opacity: 1;
      transform: translateY(0);
    }
  }
}