/*
  Page Header component
  
  Structure:
  .a-page-header                   - Base container
  .a-page-header-middle          - Middle section (title, buttons)
  .a-page-header-main          - Left side (back button, avatar, title)
  .a-page-header-title       - Title container
  .a-page-header-status    - Title + status row
  .a-page-header-subtitle    - Subtitle (use an <h2>, styled as body text, to
  preserve h1 -> h2 heading hierarchy)
  .a-page-header-trailing      - Right side (buttons and more button)
  .a-page-header-actions     - Action buttons container
  .a-page-header-more        - More button (gets left margin)
  
  Modifiers:
  .a-page-header-title--truncate      - Truncate title with ellipsis (on the h1)
  .a-page-header-title--h2/h3/h4      - Shift the responsive title ramp down to start
  from h2/h3/h4 instead of the default h1
*/

.a-page-header {
  --gap: var(--lens-semantic-spacing-desktop-gap-0-5);
  display: flex;
  flex-direction: column;
  gap: var(--a-page-header-gap, var(--gap));
  inline-size: 100%;
  &.a-page-header--compact {
    margin-block-end: var(--lens-core-spacing-1-5);
  }
}

.a-page-header-middle {
  --gap: var(--a-page-header-middle-gap, var(--lens-semantic-spacing-desktop-gap-1-5));
  --padding-block-end: var(
    --a-page-header-middle-padding-block-end,
    var(--lens-semantic-spacing-desktop-padding-1)
  );
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--gap);
  padding-block-end: var(--padding-block-end);
  inline-size: 100%;
}

.a-page-header-main {
  --gap: var(--a-page-header-main-gap, var(--lens-semantic-spacing-desktop-gap-1-5));
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: var(--gap);
  min-inline-size: 0;
  flex: 1;
  & > .a-avatar,
  & > .a-btn {
    flex-shrink: 0;
  }
}

.a-page-header-title {
  --gap: var(--a-page-header-title-gap, var(--lens-semantic-spacing-desktop-gap-0-5));
  --title-font-size: var(
    --a-page-header-title-font-size,
    var(--lens-semantic-font-title-h3-lg-font-size)
  );
  --title-line-height: var(
    --a-page-header-title-line-height,
    var(--lens-semantic-font-title-h3-lg-line-height)
  );
  --title-letter-spacing: var(
    --a-page-header-title-letter-spacing,
    var(--lens-semantic-font-title-h3-lg-letter-spacing)
  );
  display: flex;
  flex-direction: column;
  gap: var(--gap);
  min-inline-size: 0;
}

.a-page-header-title--h2 {
  --title-font-size: var(
    --a-page-header-title-font-size,
    var(--lens-semantic-font-title-h4-md-font-size)
  );
  --title-line-height: var(
    --a-page-header-title-line-height,
    var(--lens-semantic-font-title-h4-md-line-height)
  );
  --title-letter-spacing: var(
    --a-page-header-title-letter-spacing,
    var(--lens-semantic-font-title-h4-md-letter-spacing)
  );
}

.a-page-header-title--h3 {
  --title-font-size: var(
    --a-page-header-title-font-size,
    var(--lens-semantic-font-title-h5-sm-font-size)
  );
  --title-line-height: var(
    --a-page-header-title-line-height,
    var(--lens-semantic-font-title-h5-sm-line-height)
  );
  --title-letter-spacing: var(
    --a-page-header-title-letter-spacing,
    var(--lens-semantic-font-title-h5-sm-letter-spacing)
  );
}

.a-page-header-title--h4 {
  --title-font-size: var(
    --a-page-header-title-font-size,
    var(--lens-semantic-font-title-h6-xs-font-size)
  );
  --title-line-height: var(
    --a-page-header-title-line-height,
    var(--lens-semantic-font-title-h6-xs-line-height)
  );
  --title-letter-spacing: var(
    --a-page-header-title-letter-spacing,
    var(--lens-semantic-font-title-h6-xs-letter-spacing)
  );
}

.a-page-header-title h1 {
  font-size: var(--title-font-size);
  line-height: var(--title-line-height);
  letter-spacing: var(--title-letter-spacing);
  font-weight: var(--lens-semantic-font-weight-emphasis);
  margin: 0;
  word-wrap: break-word;
  word-break: break-word;
}

.a-page-header-title h1.a-page-header-title--truncate {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  word-wrap: normal;
  word-break: normal;
}

@media (min-width: 481px) {
  .a-page-header-title {
    --title-font-size: var(
      --a-page-header-title-font-size,
      var(--lens-semantic-font-title-h2-display-font-size)
    );
    --title-line-height: var(
      --a-page-header-title-line-height,
      var(--lens-semantic-font-title-h2-display-line-height)
    );
    --title-letter-spacing: var(
      --a-page-header-title-letter-spacing,
      var(--lens-semantic-font-title-h2-display-letter-spacing)
    );
  }
  .a-page-header-title--h2 {
    --title-font-size: var(
      --a-page-header-title-font-size,
      var(--lens-semantic-font-title-h3-lg-font-size)
    );
    --title-line-height: var(
      --a-page-header-title-line-height,
      var(--lens-semantic-font-title-h3-lg-line-height)
    );
    --title-letter-spacing: var(
      --a-page-header-title-letter-spacing,
      var(--lens-semantic-font-title-h3-lg-letter-spacing)
    );
  }
  .a-page-header-title--h3 {
    --title-font-size: var(
      --a-page-header-title-font-size,
      var(--lens-semantic-font-title-h4-md-font-size)
    );
    --title-line-height: var(
      --a-page-header-title-line-height,
      var(--lens-semantic-font-title-h4-md-line-height)
    );
    --title-letter-spacing: var(
      --a-page-header-title-letter-spacing,
      var(--lens-semantic-font-title-h4-md-letter-spacing)
    );
  }
  .a-page-header-title--h4 {
    --title-font-size: var(
      --a-page-header-title-font-size,
      var(--lens-semantic-font-title-h5-sm-font-size)
    );
    --title-line-height: var(
      --a-page-header-title-line-height,
      var(--lens-semantic-font-title-h5-sm-line-height)
    );
    --title-letter-spacing: var(
      --a-page-header-title-letter-spacing,
      var(--lens-semantic-font-title-h5-sm-letter-spacing)
    );
  }
}

@media (min-width: 769px) {
  .a-page-header-title {
    --title-font-size: var(
      --a-page-header-title-font-size,
      var(--lens-semantic-font-title-h1-billboard-font-size)
    );
    --title-line-height: var(
      --a-page-header-title-line-height,
      var(--lens-semantic-font-title-h1-billboard-line-height)
    );
    --title-letter-spacing: var(
      --a-page-header-title-letter-spacing,
      var(--lens-semantic-font-title-h1-billboard-letter-spacing)
    );
  }
  .a-page-header-title--h2 {
    --title-font-size: var(
      --a-page-header-title-font-size,
      var(--lens-semantic-font-title-h2-display-font-size)
    );
    --title-line-height: var(
      --a-page-header-title-line-height,
      var(--lens-semantic-font-title-h2-display-line-height)
    );
    --title-letter-spacing: var(
      --a-page-header-title-letter-spacing,
      var(--lens-semantic-font-title-h2-display-letter-spacing)
    );
  }
  .a-page-header-title--h3 {
    --title-font-size: var(
      --a-page-header-title-font-size,
      var(--lens-semantic-font-title-h3-lg-font-size)
    );
    --title-line-height: var(
      --a-page-header-title-line-height,
      var(--lens-semantic-font-title-h3-lg-line-height)
    );
    --title-letter-spacing: var(
      --a-page-header-title-letter-spacing,
      var(--lens-semantic-font-title-h3-lg-letter-spacing)
    );
  }
  .a-page-header-title--h4 {
    --title-font-size: var(
      --a-page-header-title-font-size,
      var(--lens-semantic-font-title-h4-md-font-size)
    );
    --title-line-height: var(
      --a-page-header-title-line-height,
      var(--lens-semantic-font-title-h4-md-line-height)
    );
    --title-letter-spacing: var(
      --a-page-header-title-letter-spacing,
      var(--lens-semantic-font-title-h4-md-letter-spacing)
    );
  }
}

.a-page-header-status {
  --gap: var(--a-page-header-status-gap, var(--lens-semantic-spacing-desktop-gap-1));
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: var(--gap);
}

.a-page-header-subtitle {
  --subtitle-font-size: var(
    --a-page-header-subtitle-font-size,
    var(--lens-semantic-font-title-h6-xxs-font-size)
  );
  --subtitle-line-height: var(
    --a-page-header-subtitle-line-height,
    var(--lens-semantic-font-title-h6-xxs-line-height)
  );
  --subtitle-letter-spacing: var(
    --a-page-header-subtitle-letter-spacing,
    var(--lens-semantic-font-title-h6-xxs-letter-spacing)
  );
}

.a-page-header-title h2 {
  margin: 0;
  word-wrap: break-word;
  word-break: break-word;
  font-size: var(--subtitle-font-size);
  line-height: var(--subtitle-line-height);
  letter-spacing: var(--subtitle-letter-spacing);
  font-weight: var(--lens-semantic-font-text-md-font-weight);
}

@media (min-width: 769px) {
  .a-page-header-subtitle {
    --subtitle-font-size: var(
      --a-page-header-subtitle-font-size,
      var(--lens-semantic-font-title-h5-sm-font-size)
    );
    --subtitle-line-height: var(
      --a-page-header-subtitle-line-height,
      var(--lens-semantic-font-title-h5-sm-line-height)
    );
    --subtitle-letter-spacing: var(
      --a-page-header-subtitle-letter-spacing,
      var(--lens-semantic-font-title-h5-sm-letter-spacing)
    );
  }
}

.a-page-header-trailing {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  flex-shrink: 0;
  white-space: nowrap;
}

.a-page-header-actions {
  --gap: var(--a-page-header-actions-gap, var(--lens-semantic-spacing-desktop-gap-1-5));
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: var(--gap);
}

.a-page-header-more {
  margin-inline-start: var(--lens-semantic-spacing-desktop-padding-2);
}