/**
 * Course catalog page — layout, filters, grouped sections.
 */

.course-catalog-page .catalog-filter-bar {
  margin-bottom: 2rem;
}

.course-catalog-page .catalog-filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.course-catalog-page .catalog-filter-chip {
  appearance: none;
  border: 1px solid #e5e7eb;
  background: #ffffff;
  color: #334155;
  font-family: var(--font-family-body);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.2;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.course-catalog-page .catalog-filter-chip:hover,
.course-catalog-page .catalog-filter-chip:focus-visible {
  border-color: #1c4484;
  color: #1c4484;
  outline: none;
}

.course-catalog-page .catalog-filter-chip.is-active {
  background: #1c4484;
  border-color: #1c4484;
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(28, 68, 132, 0.2);
}

.course-catalog-page .catalog-group {
  margin-bottom: 2.75rem;
}

.course-catalog-page .catalog-group.is-hidden {
  display: none;
}

.course-catalog-page .catalog-grid .course-card.is-hidden {
  display: none;
}

.course-catalog-page .catalog-empty-state {
  display: none;
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--color-text-muted);
  font-family: var(--font-family-body);
}

.course-catalog-page .catalog-empty-state.is-visible {
  display: block;
}

.course-catalog-page .catalog-cta-band {
  background: var(--color-tertiary-light, #f0f4fa);
  border-radius: 12px;
  padding: 2rem 1.5rem;
  text-align: center;
}

.course-catalog-page .catalog-cta-band h2 {
  font-family: var(--font-family-heading);
  font-weight: 600;
  font-size: 1.5rem;
  color: var(--color-text-heading);
  margin-bottom: 0.5rem;
}

.course-catalog-page .catalog-cta-band p {
  color: var(--color-text-muted);
  font-family: var(--font-family-body);
  max-width: 60ch;
  margin: 0 auto 1.25rem;
}

.course-catalog-page .catalog-cta-actions {
  display: flex;
  gap: 0.625rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Restore hero inverse tokens if page rules touch headings */
.course-catalog-page .about-hero h1 {
  color: var(--color-text-inverse) !important;
}

.course-catalog-page .about-hero-lead {
  color: rgba(255, 255, 255, 0.88) !important;
}

.course-catalog-page .about-hero-eyebrow {
  color: var(--color-about-accent) !important;
}