@layer components {
  .page {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    max-inline-size: 960px;
    margin-inline: auto;
  }

  .page-header {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    padding-block-end: var(--space-5);
    border-block-end: 1px solid var(--color-border);
  }

  .page-header__row {
    display: flex;
    gap: var(--space-5);
    justify-content: space-between;
    align-items: flex-end;
    flex-wrap: wrap;
  }

  .page-header__titles {
    flex: 1;
    min-inline-size: 0;
  }

  .page-header__title {
    font-family: var(--font-serif);
    font-size: var(--text-32);
    font-weight: 600;
    line-height: 1.1;
    margin: 0;
  }

  .page-header__subtitle {
    color: var(--color-ink-muted);
    font-size: var(--text-14);
    margin-block-start: var(--space-2);
  }

  .page-header__subtitle code {
    font-family: var(--font-mono);
    font-size: 0.95em;
  }

  .page-header__actions {
    display: flex;
    gap: var(--space-2);
    align-items: center;
    flex-wrap: wrap;
  }

  @media (min-width: 640px) {
    .page-header__actions {
      gap: var(--space-3);
    }
  }
}