@layer sheet {
  .sheet-tabs {
    block-size: 40px;
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 0 12px 0 60px;
    border-block-start: 1px solid var(--border-header);
    background: var(--surface-chrome);
    font-family: var(--font-chrome);
    overflow-x: auto;
  }

  .sheet-tabs__round-button {
    --icon-size: 22px;

    flex: none;
    display: grid;
    place-items: center;
    inline-size: 32px;
    block-size: 32px;
    border-radius: 50%;
    color: var(--icon-color);

    &:hover {
      background: var(--hover-chrome);
    }
  }

  .sheet-tabs__round-button--menu {
    margin-inline-end: 12px;
  }

  .sheet-tab {
    flex: none;
    display: flex;
    align-items: center;
    gap: 2px;
    block-size: 100%;
    padding: 0 8px 0 16px;
    font: 500 14px var(--font-chrome);
    text-decoration: none;

    &,
    &:hover {
      color: var(--text-secondary);
    }

    &:hover {
      background: var(--hover-chrome);
    }

    &[aria-current="page"] {
      background: var(--blue-50);
      color: var(--blue-700);
    }
  }

  /* The sum at the right, like a sheet's "Sum: 12" over a selection. */
  .sheet-tabs__sum {
    flex: none;
    block-size: 28px;
    display: flex;
    align-items: center;
    margin-inline-start: auto;
    padding: 0 4px 0 12px;
    border: 1px solid var(--border-header);
    border-inline-end: 0;
    border-radius: 4px 0 0 4px;
    background: var(--white);
    font-size: 13px;
    color: var(--text-primary);
    white-space: nowrap;
  }

  .sheet-tabs__sum-icon {
    --icon-size: 18px;

    block-size: 28px;
    box-sizing: content-box;
    margin-inline-end: 0;
    border: 1px solid var(--border-header);
    border-inline-start: 0;
    border-radius: 0 4px 4px 0;
    background: var(--white);
    color: var(--icon-color);
  }
}

/* Phones: a taller, edge-to-edge tab strip that scrolls sideways without a scrollbar. */
@layer sheet {
  @media (width <= 600px) {
    .sheet-tabs {
      block-size: 48px;
      gap: 0;
      padding: 0;
      scrollbar-width: none;

      &::-webkit-scrollbar {
        display: none;
      }
    }

    .sheet-tabs__round-button:not(.sheet-tabs__round-button--menu),
    .sheet-tab .icon {
      display: none;
    }

    .sheet-tabs__round-button--menu {
      inline-size: 44px;
      block-size: 100%;
      margin: 0;
      border-radius: 0;
    }

    .sheet-tab {
      padding-inline: 16px;
    }

    .sheet-tabs__sum,
    .sheet-tabs__sum-icon {
      display: none;
    }
  }
}