/* -- Article Navigation (website) -----------------------------------
   Links to the previous and next article (rel="prev" / rel="next"): a
   direction label and the title, the next link aligned to the end. A lone
   next link keeps its side. Default: two cards; minimal: text between rules. */

@layer components {
  .mk-article-nav {
    container: mk-article-nav / inline-size;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
    box-sizing: border-box;
    width: 100%;
  }

  .mk-article-nav-link {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
    min-width: 0;
    padding: 1rem 1.25rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    color: var(--foreground);
    text-decoration: none;
    transition:
      border-color 120ms,
      background-color 120ms;

    &:hover {
      border-color: color-mix(in oklch, var(--foreground) 35%, var(--border));
      background: var(--accent);
    }
    &:focus-visible {
      outline: 2px solid var(--ring);
      outline-offset: 2px;
    }

    &[rel~="next"] {
      align-items: flex-end;
      text-align: end;
    }
    /* only a next link: it stays on the end side */
    &[rel~="next"]:only-child {
      grid-column: 2;
    }
  }

  .mk-article-nav-dir {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    color: var(--muted-foreground);
    font-size: 0.8125rem;
    font-weight: 500;

    & svg {
      width: 1rem;
      height: 1rem;
      transition: translate 150ms ease;
    }
  }
  .mk-article-nav-link[rel~="prev"]:hover .mk-article-nav-dir svg {
    translate: -0.2rem 0;
  }
  .mk-article-nav-link[rel~="next"]:hover .mk-article-nav-dir svg {
    translate: 0.2rem 0;
  }

  .mk-article-nav-title {
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.35;
    text-wrap: balance;
  }

  /* narrow: the links stack */
  @container mk-article-nav (max-width: 32rem) {
    .mk-article-nav > .mk-article-nav-link[rel] {
      grid-column: 1 / -1;
    }
  }

  /* media: a thumbnail on each card (start for prev, end for next) */
  .mk-article-nav[data-variant="media"] .mk-article-nav-link {
    display: grid;
    grid-template-columns: 4.5rem minmax(0, 1fr);
    grid-template-rows: auto 1fr;
    align-items: start;
    gap: 0.25rem 1rem;
    padding: 0.75rem;

    & img {
      grid-row: 1 / span 2;
      width: 4.5rem;
      aspect-ratio: 1;
      border-radius: var(--radius-md);
      object-fit: cover;
      background: var(--muted);
    }
    &[rel~="next"] {
      grid-template-columns: minmax(0, 1fr) 4.5rem;
      justify-items: end;
    }
    &[rel~="next"] img {
      grid-column: 2;
      grid-row: 1 / span 2;
    }
    &[rel~="next"] :is(.mk-article-nav-dir, .mk-article-nav-title) {
      grid-column: 1;
    }
  }

  /* compact: two small pill links with the titles truncated */
  .mk-article-nav[data-variant="compact"] {
    display: flex;
    justify-content: space-between;
    gap: 0.75rem;

    & .mk-article-nav-link {
      flex-direction: row;
      align-items: center;
      gap: 0.5rem;
      max-width: 48%;
      padding: 0.375rem 0.875rem;
      border-radius: 999px;
    }
    & .mk-article-nav-link[rel~="next"]:only-child {
      margin-inline-start: auto;
    }
    & .mk-article-nav-title {
      overflow: hidden;
      font-size: 0.875rem;
      white-space: nowrap;
      text-overflow: ellipsis;
    }
    & .mk-article-nav-dir {
      flex: none;
    }
    & .mk-article-nav-dir span {
      position: absolute;
      width: 1px;
      height: 1px;
      overflow: hidden;
      clip-path: inset(50%);
      white-space: nowrap;
    }
  }

  /* minimal: no cards, a rule above */
  .mk-article-nav[data-variant="minimal"] {
    padding-block-start: 1.25rem;
    border-block-start: 1px solid var(--border);

    & .mk-article-nav-link {
      padding: 0;
      border: 0;
      border-radius: var(--radius-sm);

      &:hover {
        background: transparent;
      }
      &:hover .mk-article-nav-title {
        text-decoration: underline;
        text-underline-offset: 0.2em;
      }
    }
  }

  /* -- Accessibility ------------------------------------------- */
  @media (prefers-reduced-motion: reduce) {
    .mk-article-nav-link,
    .mk-article-nav-dir svg {
      transition: none;
    }
    .mk-article-nav-link:hover .mk-article-nav-dir svg {
      translate: none;
    }
  }

  @media (prefers-contrast: more) {
    .mk-article-nav-link {
      border-color: var(--foreground);
    }
    .mk-article-nav-dir {
      color: var(--foreground);
    }
  }

  @media (forced-colors: active) {
    .mk-article-nav-link {
      color: LinkText;
      border-color: LinkText;
    }
  }
}