/* ============================================================
   MONEY COURSE — SHARED DESIGN SYSTEM
   courses.krisamerikos.com
   ============================================================ */

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* --- Design tokens --- */
:root {
  --gold:          #c9a84c;
  --gold-light:    #f5e9c8;
  --gold-dim:      #8a6d24;
  --gold-glow:     rgba(201, 168, 76, 0.12);

  --ink:           #0f0e0c;
  --ink-2:         #1a1916;
  --ink-3:         #242320;
  --ink-4:         #2e2c28;

  --text-primary:  #e8e4dc;
  --text-secondary:#9e9a92;
  --text-muted:    #6b6760;

  --border:        rgba(255, 255, 255, 0.07);
  --border-strong: rgba(255, 255, 255, 0.14);

  --ancient:       #1D9E75;
  --ancient-dim:   rgba(29, 158, 117, 0.14);
  --medieval:      #4A90D9;
  --medieval-dim:  rgba(74, 144, 217, 0.14);
  --industrial:    #D4893A;
  --industrial-dim:rgba(212, 137, 58, 0.14);
  --modern:        #9B7FE8;
  --modern-dim:    rgba(155, 127, 232, 0.14);

  --font-serif:    'Playfair Display', Georgia, serif;
  --font-sans:     'Inter', system-ui, -apple-system, sans-serif;

  --nav-h:         64px;
  --max-w:         1100px;
  --r:             10px;
  --r-sm:          6px;
  --r-pill:        100px;
}

/* --- Base --- */
html { scroll-behavior: smooth; font-size: 16px; }

body {
  background:              var(--ink);
  color:                   var(--text-primary);
  font-family:             var(--font-sans);
  line-height:             1.65;
  -webkit-font-smoothing:  antialiased;
  padding-top:             var(--nav-h);
  min-height:              100vh;
}

a { color: var(--gold); text-decoration: none; }
a:hover { color: var(--gold-light); }

/* ============================================================
   NAVIGATION
   ============================================================ */
.site-nav {
  position:         fixed;
  top: 0; left: 0; right: 0;
  height:           var(--nav-h);
  background:       rgba(15, 14, 12, 0.88);
  backdrop-filter:  blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom:    1px solid var(--border);
  z-index:          1000;
  transition:       border-color 0.3s;
}

.site-nav.scrolled { border-bottom-color: var(--border-strong); }

.nav-inner {
  max-width:   var(--max-w);
  margin:      0 auto;
  padding:     0 24px;
  height:      100%;
  display:     flex;
  align-items: center;
  gap:         8px;
}

.nav-brand {
  display:         flex;
  align-items:     center;
  gap:             10px;
  text-decoration: none;
  flex-shrink:     0;
  margin-right:    16px;
}

.nav-logo {
  width:         34px;
  height:        34px;
  border-radius: var(--r-sm);
  flex-shrink:   0;
  object-fit:    contain;
}

.nav-brand-title {
  font-family: var(--font-serif);
  font-size:   15px;
  font-weight: 600;
  color:       var(--text-primary);
  display:     block;
  line-height: 1.2;
}

.nav-brand-sub {
  font-size:   10px;
  color:       var(--text-muted);
  display:     block;
  line-height: 1;
}

.nav-links {
  display:     flex;
  align-items: center;
  gap:         2px;
  flex:        1;
}

.nav-link {
  font-size:       13px;
  font-weight:     500;
  color:           var(--text-secondary);
  padding:         6px 12px;
  border-radius:   var(--r-pill);
  transition:      color 0.2s, background 0.2s;
  text-decoration: none;
  white-space:     nowrap;
}

.nav-link:hover          { color: var(--text-primary); background: var(--ink-3); }
.nav-link.active         { color: var(--gold); background: var(--gold-glow); }
.nav-link.phase-1.active { color: var(--ancient);     background: var(--ancient-dim); }
.nav-link.phase-2.active { color: var(--medieval);    background: var(--medieval-dim); }
.nav-link.phase-3.active { color: var(--industrial);  background: var(--industrial-dim); }
.nav-link.phase-4.active { color: var(--modern);      background: var(--modern-dim); }

.nav-toggle {
  display:        none;
  flex-direction: column;
  gap:            5px;
  background:     none;
  border:         none;
  cursor:         pointer;
  padding:        8px;
  margin-left:    auto;
}

.nav-toggle span {
  display:       block;
  width:         22px;
  height:        2px;
  background:    var(--text-secondary);
  border-radius: 2px;
  transition:    all 0.3s;
}

.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  padding:    80px 24px 64px;
  max-width:  var(--max-w);
  margin:     0 auto;
}

.hero-eyebrow {
  font-size:      11px;
  font-weight:    600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color:          var(--gold);
  margin-bottom:  16px;
}

.hero-title {
  font-family:   var(--font-serif);
  font-size:     clamp(30px, 5vw, 52px);
  font-weight:   600;
  color:         var(--text-primary);
  line-height:   1.15;
  margin-bottom: 16px;
}

.hero-title em { font-style: italic; color: var(--gold); }

.hero-desc {
  font-size:     16px;
  color:         var(--text-secondary);
  max-width:     580px;
  line-height:   1.75;
  margin-bottom: 40px;
}

.hero-stats {
  display:   flex;
  gap:       40px;
  flex-wrap: wrap;
}

.hero-stat-value {
  font-family:   var(--font-serif);
  font-size:     28px;
  font-weight:   600;
  color:         var(--gold);
  display:       block;
  line-height:   1;
  margin-bottom: 4px;
}

.hero-stat-label {
  font-size:      12px;
  color:          var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ============================================================
   LAYOUT
   ============================================================ */
.section {
  max-width: var(--max-w);
  margin:    0 auto;
  padding:   0 24px 80px;
}

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }

.divider { height: 1px; background: var(--border); margin: 40px 0; }

/* ============================================================
   CARDS
   ============================================================ */
.card {
  background:  var(--ink-2);
  border:      1px solid var(--border);
  border-radius: var(--r);
  overflow:    hidden;
  transition:  border-color 0.2s;
}

.card:hover { border-color: var(--border-strong); }

/* ============================================================
   FILTER BAR (sticky)
   ============================================================ */
.filter-bar {
  position:             sticky;
  top:                  var(--nav-h);
  z-index:              100;
  background:           rgba(15, 14, 12, 0.92);
  backdrop-filter:      blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom:        1px solid var(--border);
  padding:              10px 24px;
}

.filter-bar-inner {
  max-width:                var(--max-w);
  margin:                   0 auto;
  display:                  flex;
  align-items:              center;
  gap:                      8px;
  overflow-x:               auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width:          none;
}

.filter-bar-inner::-webkit-scrollbar { display: none; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display:     inline-flex;
  align-items: center;
  gap:         6px;
  padding:     9px 18px;
  border-radius: var(--r-pill);
  font-family: var(--font-sans);
  font-size:   13px;
  font-weight: 500;
  cursor:      pointer;
  transition:  all 0.2s;
  border:      none;
  text-decoration: none;
  white-space: nowrap;
}

.btn-gold { background: var(--gold); color: var(--ink); }
.btn-gold:hover { background: var(--gold-light); color: var(--ink); }

.btn-outline {
  background: transparent;
  color:      var(--text-secondary);
  border:     1px solid var(--border-strong);
}
.btn-outline:hover { background: var(--ink-3); color: var(--text-primary); }

.btn-filter {
  background:    var(--ink-3);
  color:         var(--text-secondary);
  border:        1px solid var(--border);
  padding:       6px 14px;
  font-size:     12px;
  border-radius: var(--r-pill);
  font-family:   var(--font-sans);
  font-weight:   500;
  cursor:        pointer;
  transition:    all 0.2s;
  white-space:   nowrap;
}

.btn-filter:hover,
.btn-filter.active {
  background:   var(--gold-glow);
  color:        var(--gold);
  border-color: var(--gold-dim);
}

/* ============================================================
   SEARCH
   ============================================================ */
.search-wrap {
  position:    relative;
  margin-left: auto;
  flex-shrink: 0;
}

.search-input {
  background:   var(--ink-3);
  border:       1px solid var(--border-strong);
  border-radius: var(--r-pill);
  color:        var(--text-primary);
  font-family:  var(--font-sans);
  font-size:    13px;
  padding:      6px 14px 6px 32px;
  width:        190px;
  outline:      none;
  transition:   border-color 0.2s, width 0.3s;
}

.search-input:focus { border-color: var(--gold-dim); width: 240px; }
.search-input::placeholder { color: var(--text-muted); }

.search-icon {
  position:        absolute;
  left:            10px;
  top:             50%;
  transform:       translateY(-50%);
  color:           var(--text-muted);
  pointer-events:  none;
  font-size:       13px;
  line-height:     1;
}

/* ============================================================
   PHASE / ERA BADGES
   ============================================================ */
.badge {
  display:        inline-block;
  font-size:      10px;
  font-weight:    600;
  padding:        3px 10px;
  border-radius:  var(--r-pill);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.badge-p1 { background: var(--ancient-dim);    color: var(--ancient); }
.badge-p2 { background: var(--medieval-dim);   color: var(--medieval); }
.badge-p3 { background: var(--industrial-dim); color: var(--industrial); }
.badge-p4 { background: var(--modern-dim);     color: var(--modern); }

/* ============================================================
   VOCAB PILLS
   ============================================================ */
.pill {
  display:       inline-block;
  font-size:     11px;
  font-weight:   500;
  padding:       3px 9px;
  border-radius: var(--r-pill);
  background:    var(--ink-3);
  border:        1px solid var(--border);
  color:         var(--text-secondary);
  margin:        2px;
}

.pill-p1 { background: var(--ancient-dim);    border-color: rgba(29,158,117,0.25);  color: var(--ancient); }
.pill-p2 { background: var(--medieval-dim);   border-color: rgba(74,144,217,0.25);  color: var(--medieval); }
.pill-p3 { background: var(--industrial-dim); border-color: rgba(212,137,58,0.25);  color: var(--industrial); }
.pill-p4 { background: var(--modern-dim);     border-color: rgba(155,127,232,0.25); color: var(--modern); }

/* ============================================================
   SESSION CARDS
   ============================================================ */
.session-card {
  background:    var(--ink-2);
  border:        1px solid var(--border);
  border-radius: var(--r);
  overflow:      hidden;
  margin-bottom: 16px;
  transition:    border-color 0.2s;
}

.session-card:hover { border-color: var(--border-strong); }

.session-header {
  padding:     20px 24px 16px;
  cursor:      pointer;
  user-select: none;
}

.session-header:hover { background: rgba(255,255,255,0.015); }

.session-meta {
  display:       flex;
  align-items:   center;
  gap:           10px;
  margin-bottom: 10px;
  flex-wrap:     wrap;
}

.session-num {
  font-size:  12px;
  color:      var(--text-muted);
  font-weight: 500;
}

.session-title-row {
  display:         flex;
  align-items:     flex-start;
  justify-content: space-between;
  gap:             12px;
  margin-bottom:   14px;
}

.session-title {
  font-family: var(--font-serif);
  font-size:   clamp(17px, 2vw, 21px);
  font-weight: 600;
  color:       var(--text-primary);
  line-height: 1.3;
}

.expand-icon {
  flex-shrink:     0;
  width:           28px;
  height:          28px;
  border:          1px solid var(--border-strong);
  border-radius:   50%;
  display:         flex;
  align-items:     center;
  justify-content: center;
  color:           var(--text-muted);
  font-size:       13px;
  margin-top:      2px;
  transition:      transform 0.3s, background 0.2s;
  flex-shrink:     0;
}

.expand-icon.open { transform: rotate(180deg); background: var(--ink-3); }

.vocab-preview { line-height: 2; }

/* ============================================================
   EXPANDABLE BODY
   ============================================================ */
.expand-body {
  max-height: 0;
  overflow:   hidden;
  transition: max-height 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

.expand-body.open { max-height: 3000px; }

.session-body { padding: 0 24px 24px; }

.parts-grid {
  display:               grid;
  grid-template-columns: 1fr 1fr;
  gap:                   20px;
  margin-bottom:         20px;
}

.part { }

.part-label {
  font-size:      10px;
  font-weight:    600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color:          var(--text-muted);
  margin-bottom:  8px;
}

.part-body {
  font-size:   14px;
  color:       var(--text-secondary);
  line-height: 1.7;
}

.part-body strong { color: var(--text-primary); font-weight: 500; }
.part-body em     { color: var(--text-primary); }

.grammar-note {
  margin-top:  10px;
  padding:     10px 12px;
  background:  var(--ink-3);
  border-radius: var(--r-sm);
  font-size:   12px;
  color:       var(--text-muted);
  line-height: 1.6;
}

.grammar-note strong { color: var(--text-secondary); font-weight: 500; }

.part-full { grid-column: 1 / -1; }

.discussion-q {
  font-family:  var(--font-serif);
  font-style:   italic;
  font-size:    16px;
  color:        var(--text-primary);
  line-height:  1.65;
  padding:      16px 20px;
  border-left:  3px solid var(--gold);
  background:   var(--gold-glow);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
}

.hw-block {
  background:    var(--ink-3);
  border-top:    1px solid var(--border);
  padding:       14px 24px;
  font-size:     13px;
  color:         var(--text-secondary);
  line-height:   1.65;
}

.hw-block strong { color: var(--gold); font-weight: 600; }

.prep-block {
  background:    var(--ink-3);
  border-top:    3px solid var(--gold);
  border-radius: 0 0 var(--r-sm) var(--r-sm);
  padding:       16px 24px;
  font-size:     13px;
  color:         var(--text-secondary);
  line-height:   1.7;
}

.prep-block strong { color: var(--text-primary); font-weight: 600; }

.resources-placeholder {
  background:    var(--ink-2);
  border:        1px dashed var(--border-strong);
  border-radius: var(--r-sm);
  padding:       14px 20px;
  font-size:     12px;
  color:         var(--text-muted);
  font-style:    normal;
}

.session-divider {
  height:     1px;
  background: var(--border);
  margin:     0 24px 20px;
}

/* ============================================================
   TIMELINE CARDS
   ============================================================ */
.era-section { margin-bottom: 48px; }

.era-header {
  display:       flex;
  align-items:   center;
  gap:           16px;
  margin-bottom: 20px;
}

.era-label {
  font-size:      11px;
  font-weight:    600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  white-space:    nowrap;
}

.era-line { flex: 1; height: 1px; background: var(--border); }

.event-grid {
  display:               grid;
  grid-template-columns: 1fr 1fr;
  gap:                   12px;
}

.event-card {
  background:    var(--ink-2);
  border:        1px solid var(--border);
  border-radius: var(--r);
  overflow:      hidden;
  cursor:        pointer;
  transition:    border-color 0.2s, transform 0.2s;
}

.event-card:hover { border-color: var(--border-strong); transform: translateY(-1px); }

.event-card-head {
  padding:      14px 16px 12px;
  border-left:  3px solid;
}

.event-date {
  font-size:     11px;
  font-weight:   600;
  margin-bottom: 4px;
}

.event-title {
  font-size:   14px;
  font-weight: 600;
  color:       var(--text-primary);
  line-height: 1.35;
}

.event-body {
  max-height: 0;
  overflow:   hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.event-body.open { max-height: 600px; }

.event-body-inner {
  padding:     0 16px 14px;
  font-size:   13px;
  color:       var(--text-secondary);
  line-height: 1.7;
  border-left: 3px solid;
  margin-left: 0;
}

.event-connect {
  margin-top:  10px;
  font-size:   11px;
  font-weight: 600;
  color:       var(--gold);
  opacity:     0.8;
}

/* ============================================================
   SESSION RECAP — narrative + hierarchy visual
   ============================================================ */
.section.recap-section {
  padding-top:     48px;
  padding-bottom:  56px;
}

.section.recap-section--tight {
  padding-top:     32px;
  padding-bottom:  48px;
}

.section.recap-section--big-ideas {
  padding-top:     28px;
  padding-bottom:  40px;
}

/* Recap page — tighter vertical rhythm, aligned with session/content-block density */
.page-recap .hero {
  padding:           52px 24px 20px;
  max-width:         var(--max-w);
}

.page-recap .hero-desc {
  margin-bottom:     0;
}

.page-recap .section.recap-section {
  padding-top:     28px;
  padding-bottom:  44px;
}

.page-recap .section.recap-section--big-ideas {
  padding-top:     4px;
  padding-bottom:  36px;
}

.page-recap .section.recap-section--flow {
  padding-top:     24px;
  padding-bottom:  40px;
}

.page-recap .section.recap-section--tight {
  padding-top:     20px;
  padding-bottom:  36px;
}

.page-recap .phase-heading--compact {
  margin-bottom: 10px;
}

.page-recap .recap-big-ideas-grid {
  gap: 16px 28px;
  align-items: stretch;
}

.page-recap .recap-takeaways--compact .recap-takeaway {
  padding: 10px 12px;
}

.recap-takeaways--compact {
  gap: 10px;
}

.phase-heading--compact {
  margin-bottom: 14px;
}

.phase-heading--compact .phase-heading-title {
  margin-bottom: 6px;
}

.phase-heading-desc--tight {
  font-size:   14px;
  line-height: 1.55;
  margin-top:  4px;
  max-width:   620px;
}

.recap-big-ideas-grid {
  display:               grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 340px);
  gap:                   28px 36px;
  align-items:           start;
}

.recap-takeaways--compact .recap-takeaway {
  padding:    12px 14px;
  gap:        12px 14px;
}

.recap-takeaways--compact .recap-takeaway-num {
  width:       28px;
  height:      28px;
  line-height: 28px;
  font-size:   15px;
}

.recap-takeaways--compact .recap-takeaway-title {
  font-size:     14px;
  margin-bottom: 4px;
}

.recap-takeaways--compact .recap-takeaway-text {
  font-size: 13px;
  line-height: 1.6;
}

.recap-stack-panel--embedded {
  display:        flex;
  flex-direction: column;
  height:         100%;
  padding:        14px 16px 12px;
}

.recap-stack-panel--embedded .system-stack {
  flex: 1;
}

.recap-stack-panel--embedded .system-stack-label {
  margin-bottom: 10px;
}

.recap-stack-panel--embedded .system-stack-row {
  padding:           10px 12px;
  font-size:         13px;
  border-left-color: rgba(201, 168, 76, 0.55);
}

.recap-stack-panel--embedded .system-stack-sub {
  font-size: 11px;
  margin-top: 4px;
}

.recap-stack-panel--embedded .system-stack-connector {
  height:      6px;
  margin-left: 12px;
}

.recap-map-footnote {
  margin:      8px 0 0;
  font-size:   12px;
  color:       var(--text-muted);
  line-height: 1.55;
}

.recap-quote {
  margin:        10px 0 0;
  padding:       0 0 0 14px;
  border-left:   2px solid rgba(201, 168, 76, 0.45);
  font-size:     13px;
  font-style:    italic;
  color:         var(--text-secondary);
  line-height:   1.65;
}

.recap-quote cite {
  display:     block;
  margin-top:  8px;
  font-size:   11px;
  font-style:  normal;
  font-weight: 500;
  color:       var(--text-muted);
  letter-spacing: 0.02em;
}

.recap-step-deeper {
  margin:        10px 0 0;
  font-size:     13px;
  color:           var(--text-secondary);
  line-height:     1.7;
  padding:         12px 14px;
  background:      var(--ink-3);
  border-radius:   var(--r-sm);
  border:          1px solid var(--border);
}

.recap-step-deeper strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* Session flow — recap narrative (calm, low chrome) */
.recap-section--flow {
  padding-top:    40px;
  padding-bottom: 48px;
}

.recap-flow-intro {
  font-size:     14px;
  color:         var(--text-secondary);
  line-height:   1.65;
  max-width:     560px;
  margin:        0 0 28px;
}

.recap-flow {
  max-width: 640px;
  margin:    0;
  padding:   0;
  list-style: none;
}

.recap-flow-item {
  padding:       0 0 32px;
  margin:      0 0 32px;
  border-bottom: 1px solid var(--border);
}

.recap-flow-item:last-child {
  padding-bottom: 0;
  margin-bottom:  0;
  border-bottom:  none;
}

.recap-flow-title {
  font-family:   var(--font-serif);
  font-size:     clamp(17px, 2vw, 19px);
  font-weight:   600;
  color:         var(--text-primary);
  margin:        0 0 10px;
  line-height:   1.35;
  letter-spacing: -0.01em;
}

.recap-flow-lead {
  margin:      0 0 12px;
  font-size:   15px;
  color:       var(--text-secondary);
  line-height: 1.75;
}

.recap-flow-lead:last-child {
  margin-bottom: 0;
}

.recap-flow-voice {
  margin:       0 0 14px;
  font-size:    14px;
  font-style:   italic;
  color:        var(--text-secondary);
  line-height:  1.7;
  padding-left: 14px;
  border-left:  2px solid rgba(201, 168, 76, 0.35);
}

.recap-flow-voice cite {
  display:     block;
  margin-top:  8px;
  font-size:   11px;
  font-style:  normal;
  font-weight: 500;
  color:       var(--text-muted);
  letter-spacing: 0.02em;
}

.recap-flow-insight {
  margin:         0;
  font-size:      13px;
  line-height:    1.7;
  color:          var(--text-muted);
  padding-left:   14px;
  border-left:    2px solid rgba(201, 168, 76, 0.55);
}

.recap-flow-insight strong {
  color:       var(--text-primary);
  font-weight: 600;
}

.section.recap-section--homework {
  padding-top:    28px;
  padding-bottom: 44px;
}

.page-recap .section.recap-section--homework {
  padding-top:    20px;
  padding-bottom:  40px;
}

.recap-homework {
  max-width:      640px;
  margin:         0;
  padding:        20px 22px 22px;
  background:     var(--ink-2);
  border:         1px solid var(--border);
  border-radius:  var(--r);
}

.recap-homework-list {
  margin:         0;
  padding:        0 0 0 1.35em;
  font-size:      14px;
  color:          var(--text-secondary);
  line-height:    1.75;
}

.recap-homework-list li {
  margin-bottom:  16px;
}

.recap-homework-list li:last-child {
  margin-bottom:  0;
}

.recap-homework-list strong {
  color:       var(--text-primary);
  font-weight: 600;
}

.recap-homework-note {
  margin:      18px 0 0;
  padding-top: 16px;
  border-top:  1px solid var(--border);
  font-size:   13px;
  color:       var(--text-muted);
  line-height: 1.65;
}

.recap-homework-note strong {
  color:       var(--gold);
  font-weight: 600;
}

.section.recap-related {
  padding-top:     0;
  padding-bottom:  40px;
}

.recap-takeaways {
  list-style:    none;
  padding:       0;
  margin:        0;
  display:       flex;
  flex-direction: column;
  gap:           18px;
  max-width:     720px;
}

.recap-takeaway {
  display:               grid;
  grid-template-columns: auto 1fr;
  gap:                   16px 20px;
  align-items:           start;
  padding:               18px 20px;
  background:            var(--ink-2);
  border:                1px solid var(--border);
  border-radius:         var(--r);
}

.recap-takeaway-num {
  width:         36px;
  height:        36px;
  border-radius: 50%;
  background:    var(--gold-glow);
  border:        1px solid rgba(201, 168, 76, 0.35);
  color:         var(--gold);
  font-family:   var(--font-serif);
  font-size:     17px;
  font-weight:   600;
  line-height:   36px;
  text-align:    center;
  flex-shrink:   0;
}

.recap-takeaway-title {
  display:     block;
  font-size:   15px;
  font-weight: 600;
  color:       var(--text-primary);
  margin-bottom: 6px;
}

.recap-takeaway-text {
  margin:      0;
  font-size:   14px;
  color:       var(--text-secondary);
  line-height: 1.7;
}

.recap-layout-split {
  display:               grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 320px);
  gap:                   32px 40px;
  align-items:           start;
  max-width:             900px;
  margin:                0 auto;
}

.recap-stack-panel {
  max-width:     none;
  margin:        0;
  padding:       24px 28px;
  background:    var(--ink-2);
  border:        1px solid var(--border);
  border-radius: var(--r);
}

.recap-aside-panel {
  font-size:   14px;
  color:       var(--text-secondary);
  line-height: 1.75;
  padding-top: 4px;
}

.recap-aside-title {
  font-size:      11px;
  font-weight:    700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color:          var(--gold);
  margin-bottom:  12px;
}

.recap-aside-list {
  margin:      0 0 16px;
  padding-left: 18px;
}

.recap-aside-list li { margin-bottom: 8px; }
.recap-aside-list li:last-child { margin-bottom: 0; }

.recap-aside-note {
  margin:      0;
  font-size:   13px;
  color:       var(--text-muted);
  line-height: 1.65;
}

.recap-steps {
  list-style: none;
  padding:    0;
  margin:     0;
  max-width:  720px;
}

.recap-step {
  position:      relative;
  padding-left:  24px;
  margin-bottom: 28px;
  border-left:   2px solid var(--border-strong);
}

.recap-step:last-child {
  margin-bottom: 0;
}

.recap-step-head {
  font-size:     15px;
  font-weight:   600;
  color:         var(--text-primary);
  margin-bottom: 8px;
  display:       flex;
  align-items:   baseline;
  gap:           10px;
  flex-wrap:     wrap;
}

.recap-step-num {
  display:       inline-flex;
  align-items:   center;
  justify-content: center;
  min-width:     26px;
  height:        26px;
  padding:       0 8px;
  border-radius: var(--r-sm);
  background:    var(--ink-3);
  border:        1px solid var(--border);
  font-size:     12px;
  font-weight:   700;
  color:         var(--gold);
}

.recap-step-body {
  margin:    0 0 8px;
  font-size: 14px;
  color:     var(--text-secondary);
  line-height: 1.75;
}

.recap-step-dig {
  margin:        0;
  padding:       12px 14px;
  font-size:     13px;
  color:           var(--text-muted);
  line-height:     1.65;
  background:      var(--ink-3);
  border-radius:   var(--r-sm);
  border-left:     3px solid var(--gold-dim);
}

.recap-prose-grid {
  display:               grid;
  grid-template-columns: repeat(3, 1fr);
  gap:                   14px;
  max-width:             100%;
}

.recap-prose-grid--pair {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap:                   18px;
  max-width:             900px;
}

.recap-prose-block {
  background:    var(--ink-2);
  border:        1px solid var(--border);
  border-radius: var(--r);
  padding:       20px 22px;
}

.recap-prose-title {
  font-family:   var(--font-serif);
  font-size:     17px;
  font-weight:   600;
  color:         var(--text-primary);
  margin-bottom: 10px;
  line-height:   1.3;
}

.recap-prose-block p {
  margin:    0;
  font-size: 14px;
  color:     var(--text-secondary);
  line-height: 1.75;
}

.recap-vocab-intro {
  font-size:     14px;
  color:         var(--text-secondary);
  margin:        0 0 14px;
  max-width:     560px;
  line-height:   1.65;
}

.recap-pills {
  line-height: 2;
}

@media (max-width: 900px) {
  .recap-layout-split {
    grid-template-columns: 1fr;
  }
  .recap-big-ideas-grid {
    grid-template-columns: 1fr;
  }
  .recap-prose-grid,
  .recap-prose-grid--pair {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .recap-takeaway {
    grid-template-columns: 1fr;
    padding: 16px 16px;
  }
  .recap-takeaway-num {
    width:       32px;
    height:      32px;
    line-height: 32px;
    font-size:   15px;
  }
  .recap-stack-panel {
    padding: 20px 18px;
  }
}

.system-map-intro {
  max-width:   var(--max-w);
  margin:      0 auto;
  padding:     0 24px 28px;
  font-size:   14px;
  color:       var(--text-secondary);
  line-height: 1.75;
}

.system-map-intro p + p { margin-top: 12px; }

.system-stack {
  max-width:   none;
  margin:      0;
  padding:     0;
}

.system-stack-label {
  font-size:      11px;
  font-weight:    600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color:          var(--text-muted);
  text-align:     left;
  margin-bottom:  18px;
}

.system-stack-row {
  position:      relative;
  padding:       14px 16px;
  border-radius: var(--r-sm);
  background:    var(--ink-3);
  border:        1px solid var(--border);
  border-left:   3px solid var(--stack-accent, var(--gold));
  font-size:     14px;
  font-weight:   600;
  color:         var(--text-primary);
  line-height:   1.4;
}

.system-stack-sub {
  display:     block;
  margin-top:  6px;
  font-size:   12px;
  font-weight: 500;
  color:       var(--text-muted);
  line-height: 1.5;
}

.system-stack-connector {
  width:       2px;
  height:      12px;
  margin:      0 0 0 18px;
  background:  linear-gradient(180deg, var(--border-strong), var(--border));
}

.recap-related-inner {
  padding:       24px 28px;
  background:    var(--ink-2);
  border:        1px solid var(--border);
  border-radius: var(--r);
}

.recap-related-actions {
  display:   flex;
  flex-wrap: wrap;
  gap:       10px;
  margin-top: 16px;
}

/* ============================================================
   SECTION HEADINGS (inside pages)
   ============================================================ */
.phase-heading {
  margin-bottom: 24px;
}

.phase-heading-label {
  font-size:      11px;
  font-weight:    600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom:  8px;
}

.phase-heading-title {
  font-family: var(--font-serif);
  font-size:   clamp(22px, 3vw, 30px);
  font-weight: 600;
  color:       var(--text-primary);
  line-height: 1.25;
}

.phase-heading-desc {
  margin-top:  8px;
  font-size:   14px;
  color:       var(--text-secondary);
  line-height: 1.7;
  max-width:   640px;
}

/* ============================================================
   SITE FOOTER
   ============================================================ */
.site-footer {
  border-top:  1px solid var(--border);
  padding:     32px 24px;
  text-align:  center;
  margin-top:  40px;
}

.site-footer p {
  font-size:   13px;
  color:       var(--text-muted);
  line-height: 1.8;
}

.site-footer strong { color: var(--text-secondary); }

/* ============================================================
   FADE-IN ANIMATION
   ============================================================ */
.fade-in {
  opacity:    0;
  transform:  translateY(14px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ============================================================
   NO-RESULTS
   ============================================================ */
.no-results {
  text-align:  center;
  padding:     60px 24px;
  color:       var(--text-muted);
  font-size:   15px;
  display:     none;
}

.no-results.visible { display: block; }

/* ============================================================
   CTA BUTTONS
   ============================================================ */
.btn-cta {
  display:         inline-flex;
  align-items:     center;
  justify-content: center;
  gap:             8px;
  padding:         14px 28px;
  background:      var(--gold);
  color:           var(--ink);
  font-family:     var(--font-sans);
  font-size:       15px;
  font-weight:     600;
  border-radius:   var(--r-pill);
  border:          none;
  cursor:          pointer;
  text-decoration: none;
  transition:      background 0.2s, transform 0.2s, box-shadow 0.2s;
  white-space:     nowrap;
}

.btn-cta:hover {
  background:   var(--gold-light);
  color:        var(--ink);
  transform:    translateY(-2px);
  box-shadow:   0 8px 28px rgba(201, 168, 76, 0.28);
}

.btn-cta-lg {
  padding:   18px 40px;
  font-size: 17px;
}

.cta-urgency {
  font-size:   12px;
  color:       var(--text-muted);
  margin-top:  10px;
  text-align:  center;
  line-height: 1.5;
}

.cta-urgency strong { color: var(--gold); }

/* CTA card (sidebar) */
.cta-card {
  background:    var(--ink-2);
  border:        1px solid var(--border-strong);
  border-radius: var(--r);
  padding:       24px;
  margin-bottom: 16px;
}

.cta-card-eyebrow {
  font-size:      10px;
  font-weight:    600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color:          var(--gold);
  margin-bottom:  8px;
}

.cta-card-title {
  font-family:   var(--font-serif);
  font-size:     20px;
  font-weight:   600;
  color:         var(--text-primary);
  margin-bottom: 8px;
  line-height:   1.3;
}

.cta-card-desc {
  font-size:     13px;
  color:         var(--text-secondary);
  line-height:   1.65;
  margin-bottom: 18px;
}

/* Inline CTA banner (mid-page) */
.cta-banner {
  background:    var(--ink-2);
  border:        1px solid rgba(201, 168, 76, 0.2);
  border-radius: var(--r);
  padding:       32px 40px;
  display:       flex;
  align-items:   center;
  justify-content: space-between;
  gap:           24px;
  margin:        48px 0;
}

.cta-banner-text h3 {
  font-family:   var(--font-serif);
  font-size:     22px;
  color:         var(--text-primary);
  margin-bottom: 6px;
}

.cta-banner-text p {
  font-size:   14px;
  color:       var(--text-secondary);
  line-height: 1.6;
}

/* Footer CTA */
.footer-cta {
  padding:       40px 0 32px;
  text-align:    center;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.footer-cta-text {
  font-family:   var(--font-serif);
  font-size:     22px;
  color:         var(--text-primary);
  margin-bottom: 16px;
}

/* ============================================================
   TEACHER MODE
   ============================================================ */
.teacher-banner {
  display:     none;
  background:  #1a1400;
  border-bottom: 2px solid var(--gold-dim);
  padding:     0;
}

body.teacher-mode .teacher-banner { display: block; }

.teacher-banner-inner {
  max-width:   var(--max-w);
  margin:      0 auto;
  padding:     10px 24px;
  display:     flex;
  align-items: center;
  gap:         12px;
  flex-wrap:   wrap;
  font-size:   13px;
  color:       var(--gold-light);
}

.teacher-tag {
  background:    var(--gold-dim);
  color:         var(--ink);
  font-size:     10px;
  font-weight:   700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding:       3px 10px;
  border-radius: var(--r-pill);
  white-space:   nowrap;
  flex-shrink:   0;
}

.teacher-banner-inner code {
  background:    rgba(255,255,255,0.08);
  padding:       2px 6px;
  border-radius: 4px;
  font-size:     12px;
  color:         var(--gold-light);
}

.teacher-banner-inner a {
  color: var(--gold);
  font-size: 12px;
  margin-left: auto;
}

.teacher-only { display: none; }
body.teacher-mode .teacher-only { display: block; }

.teacher-sections-header {
  display:       flex;
  align-items:   center;
  gap:           12px;
  padding:       28px 0 16px;
  margin-bottom: 0;
}

.teacher-sections-header span {
  font-size:      11px;
  font-weight:    700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color:          var(--gold-dim);
}

.teacher-sections-header::before,
.teacher-sections-header::after {
  content:    '';
  flex:       1;
  height:     1px;
  background: rgba(201, 168, 76, 0.2);
}

.teacher-section {
  background:    rgba(201, 168, 76, 0.04);
  border:        1px solid rgba(201, 168, 76, 0.12);
  border-left:   3px solid var(--gold-dim);
  border-radius: 0 var(--r) var(--r) 0;
  padding:       18px 22px;
  margin-bottom: 10px;
}

.teacher-section-label {
  font-size:      10px;
  font-weight:    700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color:          var(--gold-dim);
  margin-bottom:  10px;
}

.teacher-section-body {
  font-size:   14px;
  color:       var(--text-secondary);
  line-height: 1.75;
}

.teacher-section-body strong { color: var(--text-primary); font-weight: 500; }
.teacher-section-body em     { color: var(--text-primary); }

/* ============================================================
   SESSION PAGE LAYOUT
   ============================================================ */
.session-page {
  max-width: var(--max-w);
  margin:    0 auto;
  padding:   56px 24px 64px;
}

.session-page-inner {
  display:        grid;
  grid-template-columns: 1fr 320px;
  gap:            48px;
  align-items:    start;
}

.session-eyebrow {
  display:       flex;
  align-items:   center;
  gap:           10px;
  margin-bottom: 14px;
  flex-wrap:     wrap;
}

.session-num-tag {
  font-size:  12px;
  color:      var(--text-muted);
  font-weight: 500;
}

.session-date-tag {
  font-size:   12px;
  color:       var(--text-muted);
  padding-left: 10px;
  border-left: 1px solid var(--border-strong);
}

.session-page-title {
  font-family:   var(--font-serif);
  font-size:     clamp(26px, 4vw, 40px);
  font-weight:   600;
  color:         var(--text-primary);
  line-height:   1.2;
  margin-bottom: 14px;
}

.session-page-desc {
  font-size:     15px;
  color:         var(--text-secondary);
  line-height:   1.8;
  margin-bottom: 36px;
  max-width:     620px;
}

.content-block { margin-bottom: 32px; }

.content-block-label {
  font-size:      10px;
  font-weight:    700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color:          var(--text-muted);
  margin-bottom:  10px;
}

.session-nav-block {
  background:    var(--ink-2);
  border:        1px solid var(--border);
  border-radius: var(--r);
  padding:       18px;
}

.session-nav-item {
  display:         flex;
  align-items:     center;
  gap:             10px;
  padding:         10px 12px;
  border-radius:   var(--r-sm);
  text-decoration: none;
  color:           var(--text-secondary);
  font-size:       13px;
  line-height:     1.4;
  transition:      background 0.2s, color 0.2s;
}

.session-nav-item:hover { background: var(--ink-3); color: var(--text-primary); }

.session-nav-dir {
  font-size:   10px;
  color:       var(--text-muted);
  display:     block;
  margin-bottom: 2px;
}

.session-nav-arrow {
  color:       var(--text-muted);
  flex-shrink: 0;
  font-size:   16px;
}

.session-nav-divider { height: 1px; background: var(--border); margin: 6px 0; }

/* ============================================================
   MOBILE
   ============================================================ */
@media (max-width: 900px) {
  .session-page-inner { grid-template-columns: 1fr; }
  .cta-banner { flex-direction: column; text-align: center; padding: 24px; }
}

@media (max-width: 768px) {
  .nav-links {
    display:        none;
    position:       absolute;
    top:            var(--nav-h);
    left: 0; right: 0;
    background:     var(--ink-2);
    border-bottom:  1px solid var(--border-strong);
    flex-direction: column;
    align-items:    stretch;
    padding:        10px;
    gap:            2px;
  }

  .nav-links.open  { display: flex; }
  .nav-toggle      { display: flex; }
  .nav-link        { padding: 10px 14px; border-radius: var(--r-sm); }

  .grid-2, .grid-3   { grid-template-columns: 1fr; }
  .parts-grid         { grid-template-columns: 1fr; }
  .event-grid         { grid-template-columns: 1fr; }
  .hero               { padding: 44px 20px 36px; }
  .page-recap .hero   { padding: 40px 20px 16px; }
  .hero-stats         { gap: 24px; }
  .section            { padding: 0 20px 48px; }
  .search-input       { width: 150px; }
  .search-input:focus { width: 180px; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 26px; }
  .filter-bar { padding: 10px 16px; }
}

/* ─── Vocabulary Card Pages ─────────────────────────────────────── */
.vocab-page        { max-width: 960px; margin: 0 auto; padding: 32px 24px 80px; }
.vocab-back        { display:inline-flex; align-items:center; gap:6px; color:var(--gold); font-size:13px; text-decoration:none; margin-bottom:24px; }
.vocab-back:hover  { text-decoration:underline; }

.vocab-hero        { margin-bottom: 36px; }
.vocab-eyebrow     { display:flex; align-items:center; gap:12px; margin-bottom:12px; flex-wrap:wrap; }
.vocab-count       { font-size:12px; color:var(--muted); font-family:var(--ff-body); }
.vocab-title       { font-family:var(--ff-head); font-size:clamp(22px,4vw,34px); color:var(--cream); margin:0 0 8px; }
.vocab-subtitle    { color:var(--muted); font-size:15px; margin:0; }

.vocab-grid        { display:grid; grid-template-columns: repeat(auto-fill, minmax(280px,1fr)); gap:16px; }

.vocab-entry       { background:var(--ink-2); border:1px solid var(--border); border-radius:var(--r); padding:18px 20px; transition:border-color .2s; }
.vocab-entry:hover { border-color:var(--border-strong); }

.vocab-term-row    { display:flex; align-items:baseline; gap:8px; margin-bottom:4px; flex-wrap:wrap; }
.vocab-term        { font-family:var(--ff-head); font-size:17px; font-weight:600; color:var(--gold); }
.vocab-pos         { font-size:10px; font-weight:600; letter-spacing:.06em; text-transform:uppercase; color:var(--muted); background:rgba(255,255,255,.06); padding:2px 6px; border-radius:3px; }
.vocab-phon        { font-size:11px; color:var(--muted); font-style:italic; margin-bottom:8px; font-family:var(--ff-body); }
.vocab-def         { font-size:13.5px; color:var(--cream); line-height:1.6; margin-bottom:8px; }
.vocab-ex          { font-size:12.5px; color:var(--muted); line-height:1.6; font-style:italic; border-left:2px solid var(--border-strong); padding-left:10px; margin:0; }

/* Section color accents on vocab term */
.vocab-s1 .vocab-term { color:var(--ancient); }
.vocab-s2 .vocab-term { color:var(--medieval); }
.vocab-s3 .vocab-term { color:var(--industrial); }
.vocab-s4 .vocab-term { color:var(--modern); }

/* Print styles */
@media print {
  .site-nav, .vocab-back, .footer-cta, .cta-card { display:none !important; }
  body      { background:#fff !important; color:#111 !important; }
  .vocab-page { padding:0; max-width:100%; }
  .vocab-title, .vocab-term { color:#111 !important; }
  .vocab-entry { background:#f9f9f9 !important; border:1px solid #ddd !important; break-inside:avoid; }
  .vocab-pos   { background:#eee !important; color:#555 !important; }
  .vocab-phon, .vocab-def, .vocab-ex { color:#333 !important; }
  .vocab-grid  { grid-template-columns: repeat(2,1fr); gap:10px; }
  .badge       { background:#ddd !important; color:#111 !important; }
}

/* ── Discussion question cards ─────────────────────────────────── */
.discussion-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}
.discussion-entry {
  background: var(--ink-2);
  border: 1px solid var(--border);
  border-left-width: 3px;
  border-radius: var(--r);
  padding: 20px 22px;
}
.discussion-s1 { border-left-color: var(--ancient); }
.discussion-s2 { border-left-color: var(--medieval); }
.discussion-s3 { border-left-color: var(--industrial); }
.discussion-s4 { border-left-color: var(--modern); }
.discussion-num {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
}
.discussion-q {
  font-size: 15px;
  color: var(--text-primary);
  line-height: 1.6;
  margin-bottom: 8px;
}
.discussion-tip {
  font-size: 12px;
  color: var(--text-muted);
  font-style: italic;
  line-height: 1.5;
}

/* ── Grammar tip cards ─────────────────────────────────────────── */
.grammar-card {
  background: var(--ink-2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 28px 32px;
  margin-bottom: 20px;
}
.grammar-focus {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.grammar-s1 .grammar-focus { color: var(--ancient); }
.grammar-s2 .grammar-focus { color: var(--medieval); }
.grammar-s3 .grammar-focus { color: var(--industrial); }
.grammar-s4 .grammar-focus { color: var(--modern); }
.grammar-pattern {
  font-family: var(--ff-head);
  font-size: 22px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  line-height: 1.3;
}
.grammar-rule {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 24px;
  max-width: 680px;
}
.grammar-examples { display: flex; flex-direction: column; gap: 10px; }
.grammar-ex {
  font-size: 14px;
  color: var(--text-primary);
  background: rgba(0,0,0,0.15);
  border-left: 3px solid var(--border);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  padding: 10px 14px;
  line-height: 1.6;
}
.grammar-ex em { font-style: normal; font-weight: 600; }
.grammar-s1 .grammar-ex { border-left-color: var(--ancient); }
.grammar-s2 .grammar-ex { border-left-color: var(--medieval); }
.grammar-s3 .grammar-ex { border-left-color: var(--industrial); }
.grammar-s4 .grammar-ex { border-left-color: var(--modern); }
.grammar-s1 .grammar-ex em { color: var(--ancient); }
.grammar-s2 .grammar-ex em { color: var(--medieval); }
.grammar-s3 .grammar-ex em { color: var(--industrial); }
.grammar-s4 .grammar-ex em { color: var(--modern); }
.grammar-also {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.grammar-also-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.grammar-also-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.grammar-also-item {
  background: var(--ink-3, rgba(255,255,255,0.05));
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  padding: 5px 12px;
  font-size: 13px;
  color: var(--text-primary);
}

@media print {
  .discussion-entry { break-inside: avoid; }
  .grammar-card { break-inside: avoid; }
  .discussion-grid { grid-template-columns: repeat(2, 1fr); }
}