/* Courses catalog page (/available-courses/) — v2.
   Reuses .course-card / .eyebrow from homepage.css; this file owns the
   catalog-specific bits: search-first hero, intent pathways, sticky filter
   rail, chapter bindings, editorial hero cards, narrative callouts, density
   toggle, search empty state, final emotional block. */

/* ============ SEARCH-FIRST HERO ============ */
.catalog-open {
  padding: 88px 32px 40px;
  max-width: 1200px;
  margin: 0 auto;
  text-align: left;
}
.catalog-open .eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--brand-teal);
  padding: 6px 12px;
  border: 1px solid var(--brand-teal);
  border-radius: var(--r-pill);
  margin-bottom: 22px;
}
.catalog-open h1 {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(40px, 5.4vw, 68px);
  line-height: 1.02;
  letter-spacing: -.025em;
  max-width: 800px;
}
.catalog-open h1 em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  color: var(--brand-teal);
}

.catalog-search-wrap {
  margin-top: 36px;
  max-width: 720px;
}
.catalog-search-pill {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg);
  border: 1.5px solid var(--ink);
  border-radius: var(--r-pill);
  padding: 6px 18px 6px 24px;
  box-shadow: 6px 6px 0 var(--ink);
  transition: box-shadow 200ms var(--ease), transform 200ms var(--ease);
}
.catalog-search-pill:focus-within {
  box-shadow: 8px 8px 0 var(--brand-teal);
  transform: translate(-1px, -1px);
}
.catalog-search-pill > svg {
  flex-shrink: 0;
  color: var(--ink-3);
}
.catalog-search-pill input {
  flex: 1;
  padding: 18px 0;
  font-family: inherit;
  font-size: 18px;
  font-weight: 500;
  color: var(--ink);
  background: transparent;
  border: 0;
  outline: none;
  letter-spacing: -.005em;
  min-width: 0;
}
.catalog-search-pill input::placeholder {
  color: var(--ink-4);
  font-weight: 400;
}
.catalog-search-pill .catalog-search-kbd {
  flex-shrink: 0;
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 600;
  color: var(--ink-4);
  background: var(--bg-soft);
  padding: 4px 8px;
  border-radius: 6px;
  border: 1px solid var(--rule);
}
.catalog-search-pill:focus-within .catalog-search-kbd { display: none; }
.catalog-search-pill .catalog-search-clear {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  background: var(--bg-soft);
  border: 0;
  border-radius: 50%;
  font-size: 16px;
  line-height: 1;
  color: var(--ink-3);
  cursor: pointer;
  transition: background 180ms, color 180ms;
}
.catalog-search-pill .catalog-search-clear:hover {
  background: var(--ink);
  color: var(--bg);
}

/* ============ INSTANT-RESULTS DROPDOWN ============ */
.catalog-search-wrap { position: relative; }
.catalog-search-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  right: 0;
  /* Must sit above the sticky filter rail (z:80) — the rail scrolls up
     over the hero and would otherwise clip the open dropdown. */
  z-index: 150;
  background: var(--bg);
  border: 1.5px solid var(--ink);
  border-radius: var(--r-lg);
  box-shadow: 6px 6px 0 var(--ink);
  padding: 10px;
  max-height: min(460px, 70vh);
  overflow-y: auto;
  overscroll-behavior: contain;
  animation: catalogDropdownEnter 180ms var(--ease) both;
}
@keyframes catalogDropdownEnter {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}
.catalog-search-hit {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 10px 14px;
  border-radius: 12px;
  cursor: pointer;
  text-decoration: none;
  color: var(--ink);
  transition: background 140ms;
}
.catalog-search-hit:hover,
.catalog-search-hit.active {
  background: var(--bg-soft);
}
.catalog-search-hit .hit-mark {
  font-family: var(--serif);
  font-style: italic;
  font-size: 13px;
  color: var(--ink-4);
  width: 24px;
  text-align: center;
  line-height: 1;
}
.catalog-search-hit:hover .hit-mark,
.catalog-search-hit.active .hit-mark {
  color: var(--brand-teal);
}
.catalog-search-hit .hit-body {
  min-width: 0;
}
.catalog-search-hit .hit-title {
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: -.005em;
  color: var(--ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.catalog-search-hit .hit-title mark {
  background: var(--brand-lime);
  color: var(--ink);
  padding: 0 2px;
  border-radius: 2px;
  font-weight: 700;
}
.catalog-search-hit .hit-meta {
  font-size: 11.5px;
  color: var(--ink-4);
  margin-top: 2px;
  letter-spacing: .02em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.catalog-search-hit .hit-meta .hit-rating {
  color: var(--brand-amber);
  font-weight: 600;
  margin-right: 6px;
}
.catalog-search-hit .hit-go {
  flex-shrink: 0;
  font-family: var(--serif);
  font-style: italic;
  font-size: 16px;
  color: var(--ink-4);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 160ms, transform 160ms, color 160ms;
}
.catalog-search-hit:hover .hit-go,
.catalog-search-hit.active .hit-go {
  opacity: 1;
  transform: translateX(0);
  color: var(--brand-teal);
}
.catalog-search-hit-more {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 4px;
  padding: 12px 14px;
  border-top: 1px solid var(--rule);
  font-size: 12px;
  color: var(--ink-3);
  background: transparent;
  border-left: 0;
  border-right: 0;
  border-bottom: 0;
  width: 100%;
  cursor: pointer;
  font-family: inherit;
  text-align: left;
  letter-spacing: .02em;
}
.catalog-search-hit-more b { color: var(--ink); font-weight: 600; }
.catalog-search-hit-more .more-arrow {
  font-family: var(--serif);
  font-style: italic;
  color: var(--brand-teal);
  font-size: 14px;
  transition: transform 180ms;
}
.catalog-search-hit-more:hover .more-arrow { transform: translateX(3px); }
.catalog-search-empty-dropdown {
  padding: 32px 24px;
  text-align: center;
  font-size: 14px;
  color: var(--ink-3);
  font-family: var(--serif);
  font-style: italic;
}
.catalog-search-empty-dropdown .empty-q {
  color: var(--ink);
  font-style: normal;
  font-weight: 600;
  font-family: var(--sans);
}

@media (max-width: 680px) {
  .catalog-search-dropdown { box-shadow: 4px 4px 0 var(--ink); max-height: 400px; }
}

/* ============ SUGGEST PILLS ============ */
.catalog-search-suggest {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
  font-size: 13px;
}
.catalog-search-suggest-label {
  color: var(--ink-4);
  font-weight: 600;
  letter-spacing: .04em;
  margin-right: 4px;
}
.catalog-search-suggest-btn {
  padding: 5px 12px;
  background: transparent;
  border: 1px solid var(--rule-2);
  border-radius: var(--r-pill);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-2);
  cursor: pointer;
  transition: background 180ms, border-color 180ms, color 180ms;
}
.catalog-search-suggest-btn:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--bg);
}

.catalog-trust {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 30px;
  font-size: 14px;
  color: var(--ink-3);
  flex-wrap: wrap;
}
.catalog-trust .stars {
  color: var(--brand-amber);
  letter-spacing: 2px;
}
.catalog-trust .sep { color: var(--rule-2); }
.catalog-trust b    { color: var(--ink); }

@media (max-width: 680px) {
  .catalog-open { padding: 60px 20px 28px; }
  .catalog-open h1 { font-size: 36px; }
  .catalog-search-pill { padding: 4px 14px 4px 16px; box-shadow: 4px 4px 0 var(--ink); }
  .catalog-search-pill input { font-size: 16px; padding: 14px 0; }
  .catalog-search-pill .catalog-search-kbd { display: none; }
}

/* ============ INTENT PATHWAYS ============ */
.catalog-intents {
  padding: 16px 32px 8px;
  max-width: 1200px;
  margin: 0 auto;
}
.catalog-intents-inner {
  border-top: 1px solid var(--rule);
  padding-top: 36px;
}
.catalog-intents-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}
.catalog-intents-head .eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-4);
}
.catalog-intents-clear {
  padding: 6px 12px;
  background: var(--ink);
  color: var(--brand-lime);
  border: 0;
  border-radius: var(--r-pill);
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .02em;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: background 180ms, color 180ms;
}
.catalog-intents-clear:hover { background: var(--brand-teal-darker); }

.catalog-intents-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.catalog-intent-card {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px 48px 20px 20px;
  background: var(--bg);
  border: 1px solid var(--rule-2);
  border-radius: var(--r-lg);
  text-align: left;
  font-family: inherit;
  cursor: pointer;
  transition: border-color 200ms, transform 220ms var(--ease), box-shadow 220ms var(--ease), background 180ms;
}
.catalog-intent-card:hover {
  border-color: var(--ink);
  transform: translateY(-2px);
  box-shadow: 0 6px 0 -1px var(--ink);
}
.catalog-intent-card.active {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--bg);
  box-shadow: 0 6px 0 -1px var(--brand-teal);
}
.catalog-intent-card .icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--bg-soft);
  display: grid;
  place-items: center;
  color: var(--ink);
  transition: background 180ms, color 180ms;
}
.catalog-intent-card .icon svg { width: 18px; height: 18px; }
.catalog-intent-card:hover .icon { background: var(--brand-lime-soft); }
.catalog-intent-card.active .icon {
  background: var(--brand-lime);
  color: var(--ink);
}
.catalog-intent-card .body h3 {
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.3;
  color: inherit;
  letter-spacing: -.005em;
  margin-bottom: 4px;
}
.catalog-intent-card .body p {
  font-size: 12px;
  line-height: 1.45;
  color: var(--ink-4);
  letter-spacing: -.005em;
}
.catalog-intent-card.active .body p { color: var(--ink-5); }
.catalog-intent-card .arrow {
  position: absolute;
  top: 18px;
  right: 16px;
  font-family: var(--serif);
  font-style: italic;
  font-size: 18px;
  color: var(--ink-4);
  transition: color 180ms, transform 200ms;
}
.catalog-intent-card:hover .arrow { color: var(--brand-teal); transform: translateX(3px); }
.catalog-intent-card.active .arrow { color: var(--brand-lime); }

@media (max-width: 900px) {
  .catalog-intents-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .catalog-intents-grid { grid-template-columns: 1fr; }
  .catalog-intents { padding: 12px 20px 0; }
}

/* ============ STICKY FILTER RAIL ============ */
.catalog-filter {
  position: sticky;
  top: 76px;
  z-index: 80;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: blur(14px) saturate(180%);
  -webkit-backdrop-filter: blur(14px) saturate(180%);
  border-bottom: 1px solid transparent;
  transition: border-color 200ms var(--ease);
  margin-top: 40px;
}
.catalog-filter.scrolled {
  border-bottom-color: var(--rule);
}
.catalog-filter-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 32px;
  display: flex;
  align-items: center;
  gap: 10px;
  overflow-x: auto;
  scrollbar-width: none;
}
.catalog-filter-inner::-webkit-scrollbar { display: none; }
.catalog-filter-label {
  flex-shrink: 0;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-4);
  padding-right: 6px;
  border-right: 1px solid var(--rule-2);
  margin-right: 2px;
}
.catalog-chip {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border: 1px solid var(--rule-2);
  border-radius: var(--r-pill);
  background: var(--bg);
  color: var(--ink-2);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: -.005em;
  cursor: pointer;
  transition: background 180ms, color 180ms, border-color 180ms, transform 200ms var(--ease);
  white-space: nowrap;
}
.catalog-chip:hover {
  background: var(--bg-soft);
  border-color: var(--ink-4);
  color: var(--ink);
  transform: translateY(-1px);
}
.catalog-chip.active {
  background: var(--ink);
  color: var(--brand-lime);
  border-color: var(--ink);
}
.catalog-chip .count {
  font-size: 10.5px;
  color: var(--ink-4);
  font-weight: 600;
  background: var(--bg-soft);
  padding: 2px 6px;
  border-radius: 999px;
}
.catalog-chip.active .count { color: var(--brand-lime); background: rgba(255,255,255,0.1); }
.catalog-filter-fade {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 40px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 200ms;
}
.catalog-filter-fade.right { right: 0; background: linear-gradient(to left, rgba(255,255,255, .95), rgba(255,255,255, 0)); }
.catalog-filter-fade.left  { left: 0;  background: linear-gradient(to right, rgba(255,255,255, .95), rgba(255,255,255, 0)); }
.catalog-filter.has-overflow-right .catalog-filter-fade.right { opacity: 1; }
.catalog-filter.has-overflow-left  .catalog-filter-fade.left  { opacity: 1; }

/* Density toggle buttons (within the filter rail) */
.catalog-density {
  flex-shrink: 0;
  display: inline-flex;
  margin-left: auto;
  gap: 2px;
  padding: 3px;
  background: var(--bg-soft);
  border-radius: 10px;
}
.catalog-density-btn {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  background: transparent;
  border: 0;
  border-radius: 8px;
  color: var(--ink-4);
  cursor: pointer;
  transition: background 180ms, color 180ms;
}
.catalog-density-btn:hover { color: var(--ink); }
.catalog-density-btn.active {
  background: var(--bg);
  color: var(--ink);
  box-shadow: 0 1px 2px rgba(10, 14, 20, .08);
}

@media (max-width: 680px) {
  .catalog-filter { top: 64px; }
  .catalog-filter-inner { padding: 10px 20px; gap: 6px; }
  .catalog-filter-label { display: none; }
  .catalog-density { display: none; }
}

/* ============ RESULT SUMMARY ============ */
.catalog-result-summary {
  max-width: 1200px;
  margin: 28px auto 0;
  padding: 12px 32px;
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 14px;
  color: var(--ink-3);
}
.catalog-result-text b { color: var(--ink); font-weight: 600; }
.catalog-result-clear {
  padding: 6px 14px;
  background: transparent;
  border: 1px solid var(--rule-2);
  border-radius: var(--r-pill);
  font-family: inherit;
  font-size: 12px;
  font-weight: 500;
  color: var(--ink-2);
  cursor: pointer;
  transition: background 180ms, border-color 180ms, color 180ms;
}
.catalog-result-clear:hover {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}

/* ============ CHAPTER (CATEGORY) SECTION ============ */
.chapter {
  position: relative;
  padding: 72px 32px 64px;
  max-width: 1200px;
  margin: 0 auto;
  scroll-margin-top: 160px;
}
.chapter[hidden] { display: none; }

/* Binding line + tiny serif italic "№ 03" mark (replaces huge decorative number) */
.chapter-binding {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
}
.chapter-binding-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, var(--ink-5), transparent);
}
.chapter-binding-mark {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 14px;
  letter-spacing: .04em;
  color: var(--ink-4);
}

.chapter-head {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 40px;
}
.chapter-head .left { max-width: 680px; }
.chapter-head .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-4);
  margin-bottom: 14px;
}
.chapter-head .eyebrow .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand-teal);
}
.chapter-head .eyebrow .sep   { color: var(--rule-2); }
.chapter-head .eyebrow .count { color: var(--ink-3); font-weight: 500; letter-spacing: .02em; text-transform: none; }
.chapter-head h2 {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(30px, 3.8vw, 52px);
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--ink);
}
.chapter-head h2 em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  color: var(--brand-teal);
  padding-left: .06em;
}
.chapter-head p {
  margin-top: 12px;
  color: var(--ink-3);
  font-size: 16px;
  line-height: 1.55;
  max-width: 560px;
}
.chapter-head .right { flex-shrink: 0; }
.chapter-view-all {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  padding: 10px 18px;
  border: 1.5px solid var(--ink);
  border-radius: var(--r-pill);
  transition: background 200ms, color 200ms, transform 200ms var(--ease);
  white-space: nowrap;
}
.chapter-view-all:hover {
  background: var(--ink);
  color: var(--bg);
  transform: translateY(-1px);
}

@media (max-width: 900px) {
  .chapter { padding: 56px 24px 48px; }
  .chapter-head { flex-direction: column; align-items: flex-start; gap: 16px; }
}
@media (max-width: 680px) {
  .chapter { padding: 48px 20px 40px; }
  .chapter-head h2 { font-size: 30px; }
}

/* ============ GRID + DENSITY VARIANTS ============ */
.chapter-grid {
  display: grid;
  gap: 22px;
  transition: gap 220ms var(--ease);
}
/* default density: cards, 3 cols */
.chapter-grid[data-density="cards"] {
  grid-template-columns: repeat(3, 1fr);
}
@media (max-width: 1040px) { .chapter-grid[data-density="cards"] { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 680px)  { .chapter-grid[data-density="cards"] { grid-template-columns: 1fr; } }

/* rows density: single column; each card becomes a horizontal row */
.chapter-grid[data-density="rows"] {
  grid-template-columns: 1fr;
  gap: 14px;
}
.chapter-grid[data-density="rows"] .course-card {
  display: grid;
  grid-template-columns: 3fr 2fr auto;
  grid-template-rows: auto;
  gap: 20px;
  align-items: center;
  padding: 18px 22px;
}
/* In rows density, strip the editorial "dark" treatment from hero cards —
   rows are meant to be a compact scannable view, not a designed feature card. */
.chapter-grid[data-density="rows"] .course-card.course-card--hero {
  grid-column: span 1;
  background: var(--bg);
  border: 1px solid var(--rule-2);
  color: var(--ink);
}
.chapter-grid[data-density="rows"] .course-card--hero h3 { color: var(--ink); }
.chapter-grid[data-density="rows"] .course-card--hero::after { display: none; }
.chapter-grid[data-density="rows"] .course-card--hero .course-tags .t {
  background: var(--bg-soft);
  color: var(--ink-2);
}
.chapter-grid[data-density="rows"] .course-card--hero .course-rating .num { color: var(--ink); }
.chapter-grid[data-density="rows"] .course-card--hero .course-rating .count { color: var(--ink-4); }
.chapter-grid[data-density="rows"] .course-card--hero .course-foot .price { color: var(--ink); }
.chapter-grid[data-density="rows"] .course-card--hero .course-foot .pt-course-cta {
  background: var(--ink);
  color: var(--bg);
}
.chapter-grid[data-density="rows"] .course-desc { display: none !important; }
.chapter-grid[data-density="rows"] .course-card h3 { font-size: 18px; margin: 0; grid-column: 1; grid-row: 1; }
.chapter-grid[data-density="rows"] .course-tags    { grid-column: 1; grid-row: 2; display: flex; gap: 6px; margin-top: 4px; }
.chapter-grid[data-density="rows"] .course-desc    { display: none; }
.chapter-grid[data-density="rows"] .course-rating  { grid-column: 2; grid-row: 1 / span 2; align-self: center; justify-self: start; margin: 0; }
.chapter-grid[data-density="rows"] .course-specs   { display: none; }
.chapter-grid[data-density="rows"] .course-foot    { grid-column: 3; grid-row: 1 / span 2; align-self: center; margin-top: 0; gap: 16px; border: 0; padding: 0; }
@media (max-width: 768px) {
  .chapter-grid[data-density="rows"] .course-card { grid-template-columns: 1fr; }
  .chapter-grid[data-density="rows"] .course-rating,
  .chapter-grid[data-density="rows"] .course-foot { grid-column: 1; grid-row: auto; justify-self: start; }
}

/* Editorial hero card: first card in each chapter spans 2 cols, larger copy */
.course-card--hero {
  grid-column: span 2;
  background: var(--ink);
  color: var(--bg);
  position: relative;
  overflow: hidden;
}
.course-card--hero::after {
  content: '';
  position: absolute;
  top: -40px; right: -40px;
  width: 220px; height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(157, 214, 79, .16), transparent 60%);
  pointer-events: none;
}
.course-card--hero h3 {
  color: var(--bg);
  font-size: clamp(22px, 2.2vw, 28px);
  line-height: 1.15;
}
.course-card--hero .course-desc {
  color: var(--ink-5);
  -webkit-line-clamp: 3;
  line-clamp: 3;
  font-size: 14px;
  max-width: 80%;
}
.course-card--hero .course-rating .num { color: var(--bg); }
.course-card--hero .course-rating .count { color: var(--ink-5); }
.course-card--hero .course-specs {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
}
.course-card--hero .course-specs .s b { color: var(--bg); }
.course-card--hero .course-specs .s { color: var(--ink-5); }
.course-card--hero .course-foot .price { color: var(--bg); }
.course-card--hero .course-foot .pt-course-cta,
.course-card--hero:hover .course-foot .pt-course-cta {
  background: var(--brand-lime);
  color: var(--ink);
}
.course-card--hero .course-foot .pt-course-cta:hover {
  background: var(--brand-lime-soft);
}
.course-card--hero:hover h3::after { background: var(--brand-lime); }
.course-card--hero .course-tags .t {
  background: rgba(255,255,255, .1);
  color: var(--bg);
}
.course-card--hero .course-tags .t.hot {
  background: var(--brand-lime);
  color: var(--ink);
}
.course-card--hero .course-tags .t.blue {
  background: var(--brand-teal);
  color: var(--bg);
}

/* In rows density, hero cards go back to single-column */
.chapter-grid[data-density="rows"] .course-card--hero {
  grid-column: span 1;
}

/* At narrow widths, hero cards stop spanning */
@media (max-width: 1040px) { .course-card--hero { grid-column: span 2; } }
@media (max-width: 680px)  { .course-card--hero { grid-column: span 1; } }

/* ============ STARS — partial-fill to match rating ============ */
.stars-rating {
  position: relative;
  display: inline-block;
  color: var(--ink-5);
  letter-spacing: 1px;
  font-size: 14px;
}
.stars-rating .stars-fill {
  position: absolute;
  inset: 0;
  overflow: hidden;
  width: var(--rating-pct, 0%);
  color: var(--brand-amber);
  white-space: nowrap;
  pointer-events: none;
}

/* Signature hover: lime underline grows L→R under the course title */
.chapter-grid .course-card h3 {
  position: relative;
  display: inline-block;
}
.chapter-grid .course-card h3::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  height: 2px;
  width: 0;
  background: var(--brand-lime-deep);
  transition: width 280ms var(--ease), background 280ms var(--ease);
}
.chapter-grid .course-card:hover h3::after { width: 100%; }

.chapter-grid .course-card .course-desc {
  margin: 6px 0 14px;
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--ink-3);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ============ NARRATIVE CALLOUT ============ */
.catalog-callout {
  max-width: 980px;
  margin: 20px auto 60px;
  padding: 0 32px;
}
.catalog-callout-inner {
  position: relative;
  padding: 44px 56px;
  background: var(--bg-soft);
  border: 1px solid var(--rule);
  border-radius: var(--r-xl);
  overflow: hidden;
}
.catalog-callout-inner::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, var(--brand-teal), var(--brand-lime-deep));
}
.catalog-callout-mark {
  display: inline-block;
  font-family: var(--serif);
  font-style: italic;
  font-size: 13px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--brand-teal);
  margin-bottom: 18px;
}
.catalog-callout blockquote {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(22px, 2.4vw, 32px);
  line-height: 1.2;
  letter-spacing: -.005em;
  color: var(--ink);
  max-width: 760px;
}
.catalog-callout p {
  margin-top: 16px;
  max-width: 620px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-3);
}
.catalog-callout-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  padding-bottom: 2px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  border-bottom: 1.5px solid var(--ink);
  transition: color 200ms, border-color 200ms;
}
.catalog-callout-link:hover {
  color: var(--brand-teal);
  border-bottom-color: var(--brand-teal);
}
@media (max-width: 680px) {
  .catalog-callout { padding: 0 20px; }
  .catalog-callout-inner { padding: 30px 28px; }
}

/* ============ SEARCH EMPTY STATE ============ */
.catalog-empty {
  max-width: 720px;
  margin: 40px auto;
  padding: 72px 32px;
  text-align: center;
}
.catalog-empty-mark {
  font-family: var(--serif);
  font-style: italic;
  font-size: 96px;
  line-height: 1;
  color: var(--ink-5);
  margin-bottom: 24px;
}
.catalog-empty h2 {
  font-family: var(--sans);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -.015em;
  color: var(--ink);
  margin-bottom: 14px;
}
.catalog-empty h2 em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  color: var(--brand-teal);
}
.catalog-empty p {
  color: var(--ink-3);
  font-size: 15px;
  line-height: 1.55;
  max-width: 460px;
  margin: 0 auto 28px;
}
.catalog-empty-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  background: var(--ink);
  color: var(--bg);
  border-radius: var(--r-pill);
  font-size: 14px;
  font-weight: 600;
  transition: background 200ms, transform 200ms var(--ease);
}
.catalog-empty-cta:hover {
  background: var(--brand-teal-dark);
  transform: translateY(-1px);
}
.catalog-empty-reset {
  display: block;
  margin: 20px auto 0;
  padding: 8px 16px;
  background: transparent;
  border: 0;
  color: var(--ink-4);
  font-family: var(--serif);
  font-style: italic;
  font-size: 14px;
  text-decoration: underline;
  text-underline-offset: 4px;
  cursor: pointer;
  transition: color 200ms;
}
.catalog-empty-reset:hover { color: var(--brand-teal); }

/* ============ CAN'T FIND YOUR TEST BLOCK ============ */
.catalog-ask {
  max-width: 1200px;
  margin: 40px auto 96px;
  padding: 0 32px;
}
.catalog-ask-inner {
  background: var(--ink);
  color: var(--bg);
  border-radius: var(--r-xl);
  padding: 60px 56px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: center;
  overflow: hidden;
  position: relative;
}
.catalog-ask-inner::after {
  content: '';
  position: absolute;
  right: -80px; top: -80px;
  width: 360px; height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(157, 214, 79, .18), transparent 60%);
  pointer-events: none;
}
.catalog-ask h2 {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(30px, 3.6vw, 48px);
  line-height: 1.05;
  color: var(--bg);
}
.catalog-ask h2 span {
  font-family: var(--sans);
  font-style: normal;
  font-weight: 700;
  color: var(--brand-lime);
}
.catalog-ask p {
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-5);
  margin-top: 14px;
  max-width: 480px;
}
.catalog-ask-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
  justify-self: end;
}
.catalog-ask-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px;
  background: var(--brand-lime);
  color: var(--ink);
  border-radius: var(--r-pill);
  font-size: 15px;
  font-weight: 600;
  transition: transform 200ms var(--ease), background 200ms;
}
.catalog-ask-cta:hover {
  background: var(--brand-lime-soft);
  transform: translateY(-1px);
}
.catalog-ask-note {
  font-size: 13px;
  color: var(--ink-4);
  font-family: var(--serif);
  font-style: italic;
}
@media (max-width: 900px) {
  .catalog-ask-inner { grid-template-columns: 1fr; padding: 40px 32px; }
  .catalog-ask-actions { align-items: flex-start; justify-self: start; }
}
@media (max-width: 680px) {
  .catalog-ask { padding: 0 20px; margin-bottom: 64px; }
  .catalog-ask-inner { padding: 32px 24px; }
}

/* ============ LONG-CONTENT BLOCK ============ */
.catalog-longform {
  max-width: 820px;
  margin: 64px auto 0;
  padding: 48px 32px 24px;
  border-top: 1px solid var(--rule);
  color: var(--ink-3);
  font-size: 15px;
  line-height: 1.7;
}
.catalog-longform h2,
.catalog-longform h3 {
  font-family: var(--sans);
  color: var(--ink);
  margin: 28px 0 12px;
  letter-spacing: -.01em;
}
.catalog-longform h2 { font-size: 28px; }
.catalog-longform h3 { font-size: 20px; }
.catalog-longform a { color: var(--brand-teal); text-decoration: underline; text-underline-offset: 3px; }
.catalog-longform ul,
.catalog-longform ol { padding-left: 22px; margin: 12px 0; }
.catalog-longform li { margin-bottom: 6px; }

/* ============ FILTER / FILTERING STATES ============ */
/* Cards hidden by search or intent or chip-only filter */
.course-card[data-hidden-search],
.course-card[data-hidden-intent],
.course-card[data-hidden-chip] { display: none; }
/* Chapters hidden (no matching cards) */
.chapter[data-hidden-search],
.chapter[data-hidden-intent],
.chapter[data-hidden-chip] { display: none; }
/* Callouts hidden while filtering (they're narrative between chapters; don't show out of context) */
.catalog-filtering .catalog-callout { display: none; }