@layer components {
  /* Skip-to-content link: hidden until keyboard focus, then anchors top-left. */
  .skip-link {
    position: absolute;
    top: 0;
    left: 0;
    padding: var(--space-md) var(--space-lg);
    background-color: var(--color-surface);
    color: var(--color-text);
    text-decoration: none;
    border-radius: 0 0 var(--radius-sm) 0;
    z-index: 1100;
    transform: translateY(-110%);
    transition: transform 200ms cubic-bezier(0.22, 1, 0.36, 1);
  }
  .skip-link:focus,
  .skip-link:focus-visible {
    transform: translateY(0);
    outline: 2px solid var(--color-link);
    outline-offset: 2px;
  }

  nav.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
  }

  .navbar ul {
    background-color: var(--color-theme);
    padding: 0 var(--space-md);
    margin: 0;
    display: flex;
    flex-direction: row;
    justify-content: space-evenly;
    flex-wrap: wrap;
    align-items: center;
    border-radius: 0;
    font-weight: 300;
    list-style: none;
  }

  .navbar a {
    color: var(--color-text-light);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    margin: var(--space-md) 0;
    padding: var(--space-sm) var(--space-md);
    min-height: 44px;
    box-sizing: border-box;
    border-radius: var(--radius-sm);
    transition: background-color 200ms cubic-bezier(0.22, 1, 0.36, 1);
  }
  .navbar a:hover {
    background-color: color-mix(in srgb, var(--color-text-light) 10%, transparent);
  }
  .navbar a:focus-visible {
    outline: 2px solid var(--color-surface);
    outline-offset: 3px;
  }

  /* Current page indicator: a quiet underline mark, never bold. */
  .navbar a[aria-current="page"] {
    box-shadow: inset 0 -2px 0 var(--color-text-light);
    border-radius: 0;
  }

  /* Brand mark: same hit padding, image stays its rendered size. */
  .navbar__brand a {
    padding: var(--space-sm);
  }
  .navbar__brand img {
    display: block;
    border-radius: 0;
  }

  /* Sign-up CTA: paper-on-indigo to distinguish primary vs the quiet
     Login text link. Only used in the unauthenticated state. */
  .navbar a.navbar__cta {
    background-color: var(--color-surface);
    color: var(--color-theme);
    padding: var(--space-sm) var(--space-md);
    font-weight: 400;
  }
  .navbar a.navbar__cta:hover {
    background-color: color-mix(in srgb, var(--color-surface) 88%, var(--color-text));
  }

  @media (prefers-reduced-motion: reduce) {
    .skip-link,
    .navbar a {
      transition: none;
    }
  }
}