/* Stable content components used by category and resource pages. */
.map-intro,
.section-lead {
  margin: 1rem 0 2rem;
  padding: 1.25rem 1.5rem;
  border-left: 0.25rem solid var(--md-primary-fg-color);
  background: var(--md-code-bg-color);
}

.map-intro h2,
.section-lead h2 {
  margin: 0.35rem 0;
}

.map-intro p,
.section-lead p {
  margin-bottom: 0;
}

.eyebrow,
.course-tag {
  color: var(--md-primary-fg-color);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.category-grid,
.course-grid,
.resource-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.5rem 0 2rem;
}

.category-card,
.course-card,
.resource-card {
  display: flex;
  flex-direction: column;
  min-height: 9rem;
  padding: 1.15rem;
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 0.5rem;
  background: var(--md-default-bg-color);
  color: var(--md-default-fg-color) !important;
  text-decoration: none !important;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.category-card:hover,
.course-card:hover,
.resource-card:hover {
  border-color: var(--md-primary-fg-color);
  box-shadow: var(--md-shadow-z1);
  transform: translateY(-2px);
}

.category-card strong,
.course-card h3,
.resource-card strong {
  margin: 0.55rem 0 0.35rem;
  color: var(--md-default-fg-color);
}

.category-card span:last-child,
.course-card p,
.resource-card span {
  color: var(--md-default-fg-color--light);
  font-size: 0.9rem;
  line-height: 1.6;
}

.category-icon {
  color: var(--md-primary-fg-color);
  font-size: 1.5rem;
  font-weight: 700;
}

.course-meta {
  margin-top: auto;
  padding-top: 0.75rem;
  color: var(--md-primary-fg-color);
  font-size: 0.85rem;
  font-weight: 600;
}

.chapter-route {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 0.85rem;
  margin: 1.5rem 0 0.75rem;
}

.route-step {
  display: flex;
  min-height: 8rem;
  flex-direction: column;
  gap: 0.45rem;
  padding: 1rem;
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 0.65rem;
  background: linear-gradient(145deg, var(--md-default-bg-color), var(--md-code-bg-color));
  color: var(--md-default-fg-color) !important;
  text-decoration: none !important;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.route-step:hover,
.route-step:focus-visible {
  border-color: var(--md-primary-fg-color);
  box-shadow: var(--md-shadow-z1);
  transform: translateY(-2px);
}

.route-index {
  display: inline-flex;
  width: 1.8rem;
  height: 1.8rem;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--md-primary-fg-color);
  color: var(--md-primary-bg-color);
  font-size: 0.75rem;
  font-weight: 700;
}

.route-step strong {
  color: var(--md-default-fg-color);
  font-size: 1rem;
  line-height: 1.35;
}

.route-step small {
  color: var(--md-default-fg-color--light);
  font-size: 0.78rem;
  line-height: 1.5;
}

.chapter-route-note {
  margin: 0 0 1.5rem;
  color: var(--md-default-fg-color--light);
  font-size: 0.85rem;
}

.mini-topic-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.5rem 0 2rem;
}

.mini-topic-item {
  min-width: 0;
}

.mini-topic-card {
  display: block;
  height: 100%;
  box-sizing: border-box;
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 0.65rem;
  background: var(--md-default-bg-color);
  color: var(--md-default-fg-color) !important;
  text-decoration: none !important;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.mini-topic-card:hover,
.mini-topic-card:focus-visible {
  border-color: var(--md-primary-fg-color);
  box-shadow: var(--md-shadow-z1);
  transform: translateY(-2px);
}

.mini-topic-card strong {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 1.05rem;
}

.mini-topic-card span {
  color: var(--md-default-fg-color--light);
  font-size: 0.9rem;
  line-height: 1.6;
}

@media screen and (max-width: 60em) {
  .category-grid,
  .course-grid,
  .resource-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media screen and (max-width: 40em) {
  .category-grid,
  .course-grid,
  .resource-grid {
    grid-template-columns: 1fr;
  }

  .chapter-route {
    grid-template-columns: 1fr;
  }

  .mini-topic-grid {
    grid-template-columns: 1fr;
  }

  .route-step {
    min-height: auto;
  }
}