.dl-redesign .dl-article-intro {
  --module-primary: var(--article-teal, #469AAD);
  --module-surface: var(--article-surface, #f7f8fa);
  padding: 0 0 16px;
}

.dl-redesign .dl-article-intro__prose {
  color: var(--article-ink, #2f313a);
  font-size: 1.0625rem;
  line-height: 1.7;
}

.dl-redesign .dl-article-intro__prose p {
  margin: 0 0 18px;
  color: var(--article-ink, #2f313a);
}

.dl-redesign .dl-article-intro__label {
  margin: 0 0 10px;
  color: var(--article-teal-dark, #367A8A);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.35;
  text-transform: uppercase;
}

/* ============ CALLOUT ============ */
.dl-redesign .dl-article-intro__callout {
  margin: 28px 0;
  padding: 18px 22px;
  background: #E8F4F7;
  background: color-mix(in srgb, var(--module-primary) 12%, #ffffff);
  border-left: 3px solid var(--module-primary);
  border-radius: 8px;
}

.dl-redesign .dl-article-intro__callout-body {
  color: var(--article-ink, #2f313a);
  font-size: 1.0rem;
  line-height: 1.65;
}

.dl-redesign .dl-article-intro__callout-body p {
  margin: 0;
  color: var(--article-ink, #2f313a);
}

/* ============ TOC ============ */
.dl-redesign .dl-article-intro__toc {
  margin: 32px 0 16px;
  padding: 22px 24px;
  background: var(--module-surface, var(--article-surface, #f7f8fa));
  border: 1px solid var(--article-border, #e2e3e7);
  border-radius: 8px;
}

.dl-redesign .dl-article-intro__toc-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.dl-redesign .dl-article-intro__toc-item {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 11px 0;
  padding-left: 0;
  border-bottom: 1px dashed var(--article-border, #e2e3e7);
  list-style: none;
}

.dl-redesign .dl-article-intro__toc-item::marker {
  content: "";
}

.dl-redesign .dl-article-intro__toc-item::before {
  content: none;
}

.dl-redesign .dl-article-intro__toc-item:last-child {
  border-bottom: 0;
}

.dl-redesign .dl-article-intro__toc-num {
  color: var(--article-teal-dark, #367A8A);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1.55;
}

.dl-redesign .dl-article-intro__toc-link {
  color: var(--article-ink, #2f313a);
  font-size: 1.0625rem;
  line-height: 1.5;
  /* Always-on underline — underline inherits currentColor, so it shifts
     to teal alongside the text on hover with no extra declaration. */
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 120ms ease-out;
}

.dl-redesign .dl-article-intro__toc-link:hover {
  color: var(--article-teal-dark, #367A8A);
  text-decoration-thickness: 2px;
}

.dl-redesign .dl-article-intro__toc-link:focus-visible {
  outline: 2px solid var(--module-primary);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ============ VARIANT B: Split Guide Rail ============ */
.dl-redesign .dl-article-intro--variant-b {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 260px);
  gap: 26px;
  align-items: start;
}

.dl-redesign .dl-article-intro--variant-b .dl-article-intro__callout {
  grid-column: 1 / -1;
  grid-row: 1;
  margin: 0 0 4px;
  background: #ffffff;
  border: 1px solid var(--article-border, #e2e3e7);
  border-left: 3px solid var(--module-primary);
}

.dl-redesign .dl-article-intro--variant-b .dl-article-intro__prose {
  grid-column: 1 / 2;
  grid-row: 2;
}

.dl-redesign .dl-article-intro--variant-b .dl-article-intro__toc {
  grid-column: 2 / 3;
  grid-row: 2;
  margin: 0;
  position: sticky;
  top: 96px;
  background: #ffffff;
  border: 1px solid var(--article-border, #e2e3e7);
}

@media (max-width: 760px) {
  .dl-redesign .dl-article-intro--variant-b {
    grid-template-columns: 1fr;
  }

  .dl-redesign .dl-article-intro--variant-b .dl-article-intro__callout,
  .dl-redesign .dl-article-intro--variant-b .dl-article-intro__prose,
  .dl-redesign .dl-article-intro--variant-b .dl-article-intro__toc {
    grid-column: 1 / -1;
    grid-row: auto;
  }

  .dl-redesign .dl-article-intro--variant-b .dl-article-intro__toc {
    position: static;
  }
}

/* ============ color-mix() FALLBACK ============ */
@supports not (color: color-mix(in srgb, red, blue)) {
  .dl-redesign .dl-article-intro__callout {
    background: #E8F4F7;
  }
}

/* ============ REDUCED MOTION ============ */
@media (prefers-reduced-motion: reduce) {
  .dl-redesign .dl-article-intro__toc-link {
    transition: none;
  }
}