/* ==========================================================================
   Marxian Political Economy Curriculum — stylesheet
   Academic, scholarly, cream + burgundy palette. EB Garamond serif.
   ========================================================================== */

:root {
  --bg: #faf7f2;
  --bg-panel: #f5f1e8;
  --bg-card: #fefdfa;
  --ink: #1a1614;
  --ink-soft: #4a4340;
  --ink-muted: #7a736e;
  --accent: #7a1f1f;
  --accent-soft: #a03434;
  --rule: #d4cec5;
  --rule-soft: #e6e0d5;
  --success: #2d5a2d;
  --warn: #8b6914;
  --danger: #a83232;
  --code-bg: #f0ebe0;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }

body {
  font-family: 'EB Garamond', 'Adobe Garamond Pro', Garamond, Georgia, serif;
  background: var(--bg);
  color: var(--ink);
  font-size: 18px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

code, pre, .mono {
  font-family: 'JetBrains Mono', 'Menlo', 'Monaco', monospace;
  font-size: 0.85em;
}
code { background: var(--code-bg); padding: 1px 5px; border-radius: 3px; }

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-soft); }

h1, h2, h3, h4 { color: var(--ink); }

/* ============ App layout ============ */

#app { display: flex; height: 100vh; overflow: hidden; }

#sidebar {
  width: 320px;
  min-width: 320px;
  background: var(--bg-panel);
  border-right: 1px solid var(--rule);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.sidebar-header {
  padding: 20px 24px 16px 24px;
  border-bottom: 1px solid var(--rule);
}
.sidebar-header .brand { display: block; color: var(--ink); }
.brand-title {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.25;
}
.brand-sub {
  font-size: 13px;
  color: var(--ink-muted);
  font-style: italic;
  margin-top: 4px;
}

.progress-summary {
  padding: 12px 24px;
  border-bottom: 1px solid var(--rule);
  font-size: 13px;
}
.progress-bar {
  height: 4px;
  background: var(--rule);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 6px;
}
.progress-fill {
  height: 100%;
  background: var(--accent);
  transition: width 0.3s ease;
}
.progress-text {
  display: flex;
  justify-content: space-between;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

.sidebar-nav { flex: 1; overflow-y: auto; padding: 8px 0 20px 0; }
.part-header {
  padding: 14px 24px 6px 24px;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--ink-muted);
}
.part-vol {
  font-weight: 400;
  font-style: italic;
  text-transform: none;
  letter-spacing: 0;
  opacity: 0.75;
}

.module-nav-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 24px 8px 24px;
  cursor: pointer;
  border-left: 3px solid transparent;
  transition: background 0.1s ease;
  font-size: 15px;
  line-height: 1.35;
  color: var(--ink);
}
.module-nav-item:hover { background: rgba(0,0,0,0.03); color: var(--ink); }
.module-nav-item.active {
  background: rgba(122, 31, 31, 0.06);
  border-left-color: var(--accent);
}
.module-nav-item .mcheck {
  width: 14px;
  height: 14px;
  border: 1.5px solid var(--rule);
  border-radius: 2px;
  margin-top: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: var(--success);
  flex-shrink: 0;
}
.module-nav-item.completed .mcheck {
  border-color: var(--success);
  background: var(--success);
  color: white;
}
.module-nav-item.completed .mtitle { color: var(--ink-muted); }
.module-nav-item .mnum {
  font-size: 12px;
  color: var(--ink-muted);
  font-variant-numeric: tabular-nums;
  padding-top: 2px;
  min-width: 20px;
  font-family: 'JetBrains Mono', monospace;
}
.module-nav-item .mtitle { flex: 1; }

.sidebar-footer {
  padding: 12px 24px;
  border-top: 1px solid var(--rule);
  display: flex;
  gap: 8px;
  font-size: 13px;
}
.side-link {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  text-align: center;
  color: var(--ink-soft);
  background: transparent;
  cursor: pointer;
}
.side-link:hover { background: var(--bg-card); border-color: var(--ink-muted); color: var(--ink); }
.side-link.active { background: var(--bg-card); border-color: var(--accent); color: var(--accent); }
.side-link .badge {
  display: inline-block;
  background: var(--rule);
  color: var(--ink-muted);
  border-radius: 10px;
  padding: 1px 8px;
  font-size: 11px;
  margin-left: 4px;
  font-family: 'JetBrains Mono', monospace;
}

#main { flex: 1; overflow-y: auto; }
.page {
  max-width: 780px;
  margin: 0 auto;
  padding: 48px 56px 120px 56px;
}

/* ============ Page structure ============ */

.page-header { margin-bottom: 40px; }
.page-header h1 {
  font-size: 34px;
  font-weight: 600;
  line-height: 1.1;
  margin: 0 0 8px 0;
}
.page-lede {
  font-size: 18px;
  color: var(--ink-muted);
  font-style: italic;
}

.section { margin-bottom: 40px; }
.section h3 {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 16px 0;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--rule-soft);
}
.section h4 {
  font-size: 17px;
  font-weight: 600;
  margin: 24px 0 8px 0;
}
.section p { margin: 0 0 14px 0; }
.section ul, .section ol { padding-left: 22px; margin: 0 0 14px 0; }
.section li { margin-bottom: 6px; }

.section-head-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--rule-soft);
}
.section-head-row h3 { border: none; padding: 0; margin: 0; }
.badge {
  display: inline-block;
  background: var(--rule);
  color: var(--ink-muted);
  border-radius: 10px;
  padding: 2px 10px;
  font-size: 12px;
  font-family: 'JetBrains Mono', monospace;
}

/* ============ Dashboard stats ============ */

.stat-row {
  display: flex;
  gap: 24px;
  padding: 24px 0;
  margin: 0 0 32px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.stat { flex: 1; }
.stat .snum {
  font-size: 34px;
  font-weight: 600;
  color: var(--accent);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.snum-sep, .snum-total {
  color: var(--ink-muted);
  font-size: 22px;
  font-weight: 400;
}
.stat .slabel {
  font-size: 13px;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 6px;
}

.cta-box {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 28px 32px;
  margin-bottom: 40px;
}
.cta-box h3 {
  border: none;
  padding: 0;
  margin: 0 0 10px 0;
}
.cta-box p { margin-bottom: 14px; }

.module-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}
.module-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 16px 20px;
  color: var(--ink);
}
.module-card:hover {
  border-color: var(--accent);
  color: var(--ink);
  background: var(--bg-card);
}
.module-card.featured {
  border-left: 3px solid var(--accent);
}
.mc-num {
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-family: 'JetBrains Mono', monospace;
  margin-bottom: 4px;
}
.mc-title {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}
.mc-meta {
  font-size: 13px;
  color: var(--ink-muted);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.rating-inline {
  color: var(--accent);
  font-family: monospace;
  letter-spacing: 2px;
}

.note-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.note-list-item {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 12px 16px;
  color: var(--ink);
}
.note-list-item:hover {
  border-color: var(--accent);
  background: var(--bg-card);
  color: var(--ink);
}
.note-head {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
}
.note-mod { font-weight: 600; }
.note-time { font-size: 13px; color: var(--ink-muted); }
.note-preview {
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.4;
  white-space: pre-wrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.card-list { display: flex; flex-direction: column; gap: 8px; }
.card-summary {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 12px 16px;
}
.card-summary-meta {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--ink-muted);
  margin-bottom: 6px;
}
.card-summary-front { font-size: 15px; }
.see-all {
  display: inline-block;
  margin-top: 12px;
  color: var(--accent);
  font-size: 14px;
}

.outline { margin-top: 8px; }
.outline-part {
  margin-bottom: 20px;
}
.op-header {
  font-weight: 600;
  font-size: 15px;
  color: var(--ink);
  margin-bottom: 6px;
}
.op-vol {
  color: var(--ink-muted);
  font-weight: 400;
  font-style: italic;
  font-size: 13px;
  margin-left: 6px;
}
.op-modules { display: flex; flex-direction: column; }
.op-mod {
  display: flex;
  padding: 6px 0;
  border-bottom: 1px dashed var(--rule-soft);
  color: var(--ink);
  font-size: 15px;
  gap: 12px;
}
.op-mod:hover { color: var(--accent); }
.op-mod.completed { color: var(--ink-muted); }
.op-mod.completed .op-mtitle::after { content: ' ✓'; color: var(--success); }
.op-mod.started .op-mtitle::after { content: ' …'; color: var(--warn); }
.op-mnum {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--ink-muted);
  min-width: 30px;
}
.op-mtitle { flex: 1; }
.op-mhours {
  font-size: 13px;
  color: var(--ink-muted);
  font-family: 'JetBrains Mono', monospace;
}

/* ============ Module page ============ */

.module-header { margin-bottom: 40px; }
.module-header .part-label {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 8px;
  font-weight: 500;
}
.module-header h1 {
  font-size: 30px;
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 12px 0;
}
.module-header .module-meta {
  font-size: 14px;
  color: var(--ink-muted);
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 12px;
  font-variant-numeric: tabular-nums;
}
.module-header .module-meta span::before { content: '· '; margin-right: 4px; color: var(--rule); }
.module-header .module-meta span:first-child::before { content: ''; margin: 0; }

.overview {
  background: var(--bg-card);
  border-left: 3px solid var(--accent);
  padding: 20px 24px;
  margin-bottom: 40px;
  font-style: italic;
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 1.5;
}

.objectives-list { list-style: none; padding: 0; margin: 0; }
.objectives-list li {
  padding: 8px 0 8px 28px;
  position: relative;
  border-bottom: 1px dashed var(--rule-soft);
}
.objectives-list li:last-child { border-bottom: 0; }
.objectives-list li::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 16px;
  width: 6px;
  height: 6px;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
}

.reading-block {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 18px 22px;
}
.reading-block .rvol {
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 4px;
}
.reading-block .rsections {
  font-size: 15px;
  color: var(--ink-soft);
  margin-bottom: 8px;
}
.reading-block .rpages {
  font-size: 13px;
  color: var(--ink-muted);
  font-variant-numeric: tabular-nums;
}

/* ============ Sequenced reading order ============ */

.reading-order {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  counter-reset: reading;
}
.reading-step {
  display: flex;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 16px 20px;
  position: relative;
}
.reading-step.reading-type-main {
  border-left: 3px solid var(--accent);
  background: linear-gradient(to right, rgba(122,31,31,0.03), var(--bg-card) 30%);
}
.reading-step.reading-type-prep {
  border-left: 3px solid var(--warn);
}
.reading-step.reading-type-deepen {
  border-left: 3px solid var(--success);
}
.reading-step.reading-type-extend {
  border-left: 3px dashed var(--ink-muted);
  opacity: 0.9;
}
.rs-badge {
  flex-shrink: 0;
  width: 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding-top: 2px;
}
.rs-step {
  font-family: 'JetBrains Mono', monospace;
  font-size: 22px;
  font-weight: 600;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
.reading-step.reading-type-prep .rs-step { color: var(--warn); }
.reading-step.reading-type-deepen .rs-step { color: var(--success); }
.reading-step.reading-type-extend .rs-step { color: var(--ink-muted); }
.rs-type {
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-weight: 500;
  text-align: center;
  line-height: 1.2;
}
.rs-body {
  flex: 1;
  min-width: 0;
}
.rs-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 4px;
  line-height: 1.3;
}
.rs-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--ink-muted);
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}
.rs-meta > span::before {
  content: '· ';
  margin-right: 4px;
  color: var(--rule);
}
.rs-meta > span:first-child::before {
  content: '';
  margin: 0;
}
.rs-author { font-style: italic; }
.rs-sections { color: var(--ink-soft); }
.rs-time {
  font-family: 'JetBrains Mono', monospace;
  background: var(--bg-panel);
  padding: 0 6px;
  border-radius: 2px;
  font-size: 11px;
}
.rs-rationale {
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.5;
  padding-top: 6px;
  margin-bottom: 8px;
}
.rs-card-btn {
  margin-top: 2px;
}

.reading-summary {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 16px;
  margin-bottom: 14px;
  background: var(--bg-panel);
  border-radius: 4px;
  font-size: 13px;
  color: var(--ink-muted);
  flex-wrap: wrap;
  font-variant-numeric: tabular-nums;
}
.reading-summary > span:not(.reading-legend) {
  padding-right: 16px;
  border-right: 1px solid var(--rule);
}
.reading-legend {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
  font-size: 12px;
}
.lg-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  margin-right: 4px;
  vertical-align: middle;
}
.lg-prep { background: var(--warn); }
.lg-main { background: var(--accent); }
.lg-deepen { background: var(--success); }
.lg-extend {
  background: transparent;
  border: 1px dashed var(--ink-muted);
}

.concept-list { display: flex; flex-direction: column; gap: 10px; }
.concept {
  background: var(--bg-card);
  border-left: 2px solid var(--rule);
  padding: 12px 18px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.concept-body { flex: 1; }
.concept .cname { font-weight: 600; color: var(--ink); margin-bottom: 4px; }
.concept .cdef { color: var(--ink-soft); font-size: 16px; }

/* Curriculum module theorems — the curriculum uses a structured
   .theorem > .theorem-body layout, quite different from the monograph's
   inline theorem-like blocks. Scope this rule so it only applies inside
   curriculum module pages, not the monograph chapter view. */
.module-page .theorem {
  background: linear-gradient(to right, rgba(122,31,31,0.03), transparent 40%);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--accent);
  padding: 16px 22px;
  margin-bottom: 14px;
  border-radius: 0 3px 3px 0;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.module-page .theorem-body { flex: 1; }
.module-page .theorem .tname {
  font-weight: 600;
  color: var(--accent);
  font-variant-caps: small-caps;
  letter-spacing: 0.03em;
  margin-bottom: 6px;
  font-size: 14px;
}
.module-page .theorem .tstatement { color: var(--ink); font-size: 16px; line-height: 1.55; margin-bottom: 8px; }
.module-page .theorem .twhy {
  color: var(--ink-muted);
  font-size: 14px;
  font-style: italic;
  padding-top: 8px;
  border-top: 1px dashed var(--rule-soft);
}

.question {
  padding: 12px 0 12px 32px;
  position: relative;
  border-bottom: 1px dashed var(--rule-soft);
  font-size: 17px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.question:last-child { border-bottom: 0; }
.question::before {
  content: 'Q';
  position: absolute;
  left: 0;
  top: 14px;
  width: 22px;
  height: 22px;
  background: var(--accent);
  color: white;
  border-radius: 50%;
  font-size: 12px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'JetBrains Mono', monospace;
}
.question-body { flex: 1; }

.exercise {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 18px 22px;
  margin-bottom: 14px;
}
.exercise-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}
.ml-auto { margin-left: auto; }
.exercise-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--ink-muted);
  font-weight: 500;
}
.exercise-difficulty {
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 10px;
  background: var(--bg-panel);
  color: var(--ink-muted);
  font-weight: 500;
  letter-spacing: 0.03em;
}
.exercise-difficulty.hard { background: rgba(122,31,31,0.1); color: var(--accent); }
.exercise-difficulty.med { background: rgba(139,105,20,0.15); color: var(--warn); }
.exercise-difficulty.easy { background: rgba(45,90,45,0.1); color: var(--success); }
.exercise-prompt { margin: 0 0 10px 0; color: var(--ink); }
.exercise details {
  margin-top: 10px;
  border-top: 1px dashed var(--rule-soft);
  padding-top: 10px;
}
.exercise summary {
  cursor: pointer;
  font-size: 14px;
  color: var(--accent);
  font-weight: 500;
  list-style: none;
  padding: 4px 0;
  user-select: none;
}
.exercise summary::-webkit-details-marker { display: none; }
.exercise summary::before {
  content: '▸ ';
  font-size: 10px;
  transition: transform 0.15s ease;
  display: inline-block;
}
.exercise details[open] summary::before { transform: rotate(90deg); }
.solution { padding: 12px 0 4px 0; color: var(--ink-soft); font-size: 16px; line-height: 1.55; }

.connections {
  padding: 12px 16px;
  background: var(--bg-card);
  border-left: 2px solid var(--rule);
  font-size: 15px;
  color: var(--ink-soft);
  font-style: italic;
}

/* ============ Notes ============ */

.notes-block { display: flex; flex-direction: column; gap: 8px; }
.notes-area {
  width: 100%;
  min-height: 200px;
  padding: 14px 16px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  background: var(--bg-card);
  font-family: inherit;
  font-size: 16px;
  line-height: 1.5;
  color: var(--ink);
  resize: vertical;
}
.notes-area:focus { outline: none; border-color: var(--accent); }
.notes-status {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--ink-muted);
}
.notes-preview {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 16px 20px;
  font-size: 16px;
  line-height: 1.6;
  min-height: 100px;
  white-space: pre-wrap;
}

/* ============ Card composer ============ */

.card-composer {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 20px 22px;
  margin-bottom: 20px;
}
.composer-fields label {
  display: block;
  margin-bottom: 12px;
}
.composer-fields label span {
  display: block;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-weight: 500;
  margin-bottom: 4px;
}
.composer-fields textarea,
.composer-fields input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  background: white;
  font-family: inherit;
  font-size: 15px;
  line-height: 1.4;
  color: var(--ink);
  resize: vertical;
}
.composer-fields textarea:focus,
.composer-fields input:focus {
  outline: none;
  border-color: var(--accent);
}
.composer-advanced {
  margin-top: 4px;
  padding-top: 12px;
  border-top: 1px dashed var(--rule-soft);
}
.composer-advanced summary {
  cursor: pointer;
  font-size: 13px;
  color: var(--ink-muted);
  list-style: none;
}
.composer-advanced summary::-webkit-details-marker { display: none; }
.composer-advanced summary::before { content: '▸ '; font-size: 10px; }
.composer-advanced[open] summary::before { content: '▾ '; }
.composer-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 12px;
  margin-top: 8px;
}
.composer-status { font-size: 13px; color: var(--ink-muted); }
.composer-status.success { color: var(--success); }
.composer-status.error { color: var(--danger); }

.quick-card-btn {
  background: transparent;
  border: 1px solid var(--rule);
  color: var(--ink-muted);
  padding: 3px 10px;
  border-radius: 3px;
  font-family: inherit;
  font-size: 12px;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
}
.quick-card-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: white;
}

.module-card-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 20px 0;
}
.anki-card {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 16px 20px;
}
.anki-card-front {
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--ink);
}
.anki-card-back {
  color: var(--ink-soft);
  font-size: 15px;
  padding: 8px 0;
  border-top: 1px dashed var(--rule-soft);
  border-bottom: 1px dashed var(--rule-soft);
  margin-bottom: 8px;
  line-height: 1.55;
}
.anki-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--ink-muted);
  flex-wrap: wrap;
}
.anki-card-meta .ref {
  font-style: italic;
}
.anki-card-meta button {
  margin-left: auto;
}

.export-row {
  display: flex;
  gap: 10px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--rule-soft);
  flex-wrap: wrap;
}

/* ============ Rating & completion ============ */

.rating-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
}
.rating-label { color: var(--ink-soft); font-size: 15px; margin-right: 6px; }
.rating-stars { display: flex; gap: 3px; }
.rating-star {
  cursor: pointer;
  font-size: 22px;
  color: var(--rule);
  transition: color 0.1s ease;
  user-select: none;
  line-height: 1;
}
.rating-star:hover, .rating-star.filled { color: var(--accent); }
.rating-anchor { color: var(--ink-muted); font-size: 14px; margin-left: 8px; }

.completion-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 24px;
  padding: 20px;
  background: var(--bg-panel);
  border-radius: 4px;
  border: 1px solid var(--rule);
}
.completion-status { color: var(--ink-soft); font-size: 15px; }

/* ============ Buttons ============ */

.btn {
  padding: 8px 16px;
  background: white;
  border: 1px solid var(--rule);
  color: var(--ink);
  border-radius: 3px;
  font-family: inherit;
  font-size: 15px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
.btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.btn.btn-primary {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}
.btn.btn-primary:hover {
  background: var(--accent-soft);
  border-color: var(--accent-soft);
  color: white;
}
.btn.btn-primary.completed {
  background: var(--success);
  border-color: var(--success);
}
.btn.ghost {
  background: transparent;
  color: var(--ink-soft);
}
.btn.danger {
  color: var(--danger);
  border-color: var(--danger);
}
.btn.danger:hover {
  background: var(--danger);
  color: white;
}

.ghost-btn {
  background: transparent;
  border: 1px solid var(--rule);
  color: var(--ink-muted);
  padding: 3px 10px;
  border-radius: 3px;
  font-family: inherit;
  font-size: 12px;
  cursor: pointer;
}
.ghost-btn:hover {
  border-color: var(--ink-soft);
  color: var(--ink);
}
.ghost-btn.danger {
  color: var(--danger);
  border-color: var(--rule);
}
.ghost-btn.danger:hover {
  border-color: var(--danger);
  background: var(--danger);
  color: white;
}

/* ============ Toolbar & filters ============ */

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--rule);
  flex-wrap: wrap;
  gap: 12px;
}
.toolbar-right { display: flex; gap: 8px; flex-wrap: wrap; }
.filter-label {
  font-size: 14px;
  color: var(--ink-soft);
  display: flex;
  align-items: center;
  gap: 8px;
}
.filter-label select {
  padding: 6px 10px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  background: white;
  font-family: inherit;
  font-size: 14px;
  color: var(--ink);
}

.empty-state {
  text-align: center;
  padding: 60px 20px;
  background: var(--bg-card);
  border: 1px dashed var(--rule);
  border-radius: 4px;
}
.empty-state h3 {
  border: none;
  padding: 0;
  color: var(--ink-muted);
  text-transform: none;
  font-size: 18px;
  letter-spacing: 0;
}
.empty-state p { color: var(--ink-muted); margin: 12px 0 20px 0; }

/* ============ About / admin ============ */

.admin-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.admin-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  gap: 20px;
  flex-wrap: wrap;
}
.admin-row.danger { border-color: rgba(168, 50, 50, 0.3); }
.admin-row p { margin: 4px 0 0 0; }
.muted { color: var(--ink-muted); font-size: 14px; }

/* ============ Nav buttons at bottom of module ============ */

.nav-buttons {
  display: flex;
  justify-content: space-between;
  margin-top: 60px;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
  gap: 12px;
}
.nav-btn {
  padding: 12px 20px;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  color: var(--ink);
  border-radius: 3px;
  font-family: inherit;
  font-size: 15px;
  cursor: pointer;
  text-align: left;
  flex: 1;
  max-width: 300px;
  text-decoration: none;
}
.nav-btn:hover {
  background: var(--bg-panel);
  border-color: var(--ink-muted);
  color: var(--ink);
}
.nav-btn.next { text-align: right; }
.nav-btn .direction {
  display: block;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 4px;
}

/* ============ Toast ============ */

.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  padding: 12px 20px;
  background: var(--ink);
  color: white;
  border-radius: 4px;
  font-size: 14px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  z-index: 100;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
.toast.hidden {
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
}

.hidden { display: none !important; }

/* ============ Auth pages (login / register) ============ */

.auth-body {
  background: var(--bg);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  margin: 0;
}
.auth-container {
  width: 100%;
  max-width: 460px;
}
.auth-brand {
  text-align: center;
  margin-bottom: 32px;
}
.auth-brand h1 {
  font-size: 28px;
  font-weight: 600;
  margin: 0 0 6px 0;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.auth-brand p {
  color: var(--ink-muted);
  font-style: italic;
  margin: 0;
  font-size: 15px;
}
.auth-card {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 32px 36px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}
.auth-card h2 {
  margin: 0 0 20px 0;
  font-size: 22px;
  font-weight: 600;
  color: var(--ink);
}
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.auth-form label {
  display: block;
  margin: 0;
}
.auth-form label > span {
  display: block;
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: 4px;
  font-weight: 500;
}
.auth-form label > span em {
  color: var(--ink-muted);
  font-size: 12px;
  font-style: italic;
  font-weight: 400;
  margin-left: 6px;
}
.auth-form label > span em code {
  font-size: 11px;
  padding: 0 3px;
}
.auth-form input[type="text"],
.auth-form input[type="password"] {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  background: white;
  font-family: inherit;
  font-size: 15px;
  color: var(--ink);
  transition: border-color 0.1s ease;
}
.auth-form input:focus {
  outline: none;
  border-color: var(--accent);
}
.auth-checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--ink-soft);
  cursor: pointer;
  margin-top: 4px;
}
.auth-checkbox input {
  margin: 0;
  cursor: pointer;
}
.auth-checkbox span {
  margin: 0 !important;
  font-weight: 400 !important;
}
.auth-submit {
  margin-top: 8px;
  padding: 10px 18px;
  font-size: 16px;
  font-weight: 500;
}
.auth-error {
  background: rgba(168, 50, 50, 0.08);
  border-left: 3px solid var(--danger);
  padding: 10px 14px;
  border-radius: 0 3px 3px 0;
  color: var(--danger);
  font-size: 14px;
  margin-bottom: 16px;
}
.auth-error-list {
  background: rgba(168, 50, 50, 0.08);
  border-left: 3px solid var(--danger);
  padding: 10px 14px 10px 30px;
  border-radius: 0 3px 3px 0;
  color: var(--danger);
  font-size: 14px;
  margin: 0 0 16px 0;
}
.auth-flash {
  padding: 10px 14px;
  border-radius: 3px;
  font-size: 14px;
  margin-bottom: 16px;
}
.auth-flash.flash-info {
  background: rgba(122, 31, 31, 0.05);
  border-left: 3px solid var(--accent);
  color: var(--accent);
}
.auth-footer {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--rule-soft);
  font-size: 14px;
  color: var(--ink-muted);
  text-align: center;
}
.auth-footer a { color: var(--accent); }

/* ============ Sidebar user info ============ */

.sidebar-user {
  border-top: 1px solid var(--rule);
  padding: 12px 24px;
  background: var(--bg-panel);
}
.user-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.user-name {
  font-size: 14px;
  color: var(--ink);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}
.logout-form { margin: 0; }

/* ============ Flash messages (in-page) ============ */

.flash {
  padding: 10px 14px;
  border-radius: 3px;
  font-size: 14px;
  margin-bottom: 20px;
  border-left: 3px solid var(--rule);
}
.flash.flash-success {
  background: rgba(45, 90, 45, 0.06);
  border-left-color: var(--success);
  color: var(--success);
}
.flash.flash-error {
  background: rgba(168, 50, 50, 0.06);
  border-left-color: var(--danger);
  color: var(--danger);
}
.flash.flash-info {
  background: rgba(122, 31, 31, 0.06);
  border-left-color: var(--accent);
  color: var(--accent);
}

/* ============ Change password form ============ */

.password-details {
  margin-top: 8px;
}
.password-details > summary {
  cursor: pointer;
  list-style: none;
  display: inline-block;
}
.password-details > summary::-webkit-details-marker { display: none; }
.pwd-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 12px;
  padding: 14px 16px;
  background: var(--bg-panel);
  border-radius: 3px;
  max-width: 380px;
}
.pwd-form input[type="password"] {
  padding: 8px 12px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  background: white;
  font-family: inherit;
  font-size: 14px;
  color: var(--ink);
}
.pwd-form input:focus {
  outline: none;
  border-color: var(--accent);
}
.pwd-form button {
  align-self: flex-start;
  margin-top: 4px;
}

/* ============ Responsive ============ */

@media (max-width: 900px) {
  #sidebar { width: 260px; min-width: 260px; }
  .page { padding: 32px 28px 100px 28px; }
}
@media (max-width: 700px) {
  #app { flex-direction: column; }
  #sidebar { width: 100%; height: auto; max-height: 40vh; }
  .page { padding: 24px 20px 80px 20px; }
  .page-header h1 { font-size: 26px; }
  .stat-row { flex-wrap: wrap; }
  .stat { min-width: 45%; }
}

@media print {
  #sidebar, .completion-row, .nav-buttons, .sidebar-footer, .card-composer,
  .export-row, .quick-card-btn, .toast { display: none; }
  #main { overflow: visible; }
  .page { max-width: 100%; padding: 0; }
  .exercise details { display: block; }
}

/* ==========================================================================
   Home landing page (three-project selector)
   ========================================================================== */

.home-body {
  background: var(--bg);
  min-height: 100vh;
  padding: 0;
}
.home-app {
  display: block;
  height: auto;
  overflow: visible;
  min-height: 100vh;
}
.home-wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 60px 40px 80px 40px;
}
.home-header {
  text-align: center;
  margin-bottom: 56px;
}
.home-header h1 {
  font-size: 40px;
  font-weight: 600;
  margin: 0 0 10px 0;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.home-lede {
  color: var(--ink-muted);
  font-style: italic;
  font-size: 18px;
  margin: 0 0 20px 0;
}
.home-user-strip {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 8px 14px;
  background: var(--bg-panel);
  border: 1px solid var(--rule);
  border-radius: 20px;
  font-size: 14px;
  color: var(--ink-soft);
}
.home-user-strip form { margin: 0; }
.home-user-strip strong { color: var(--ink); font-weight: 600; }

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}
@media (max-width: 900px) {
  .project-grid { grid-template-columns: 1fr; }
}

.project-card {
  display: flex;
  flex-direction: column;
  padding: 32px 28px;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 6px;
  color: var(--ink);
  text-decoration: none;
  transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
  min-height: 320px;
}
.project-card:hover {
  border-color: var(--accent);
  color: var(--ink);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(122, 31, 31, 0.08);
}
.pc-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.1em;
  font-weight: 600;
  margin-bottom: 12px;
}
.pc-title {
  font-size: 22px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
  line-height: 1.2;
}
.pc-tagline {
  font-size: 14px;
  color: var(--ink-muted);
  font-style: italic;
  margin-bottom: 16px;
  line-height: 1.35;
}
.pc-desc {
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.5;
  margin-bottom: auto;
  padding-bottom: 20px;
}
.pc-desc code {
  font-size: 12px;
  padding: 1px 4px;
}
.pc-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  padding: 12px 0 8px 0;
  border-top: 1px solid var(--rule-soft);
  font-size: 13px;
  color: var(--ink-muted);
}
.pc-stats span { line-height: 1.4; }
.pc-stats strong {
  color: var(--ink);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.pc-empty {
  font-style: italic;
  color: var(--ink-muted);
}
.pc-cta {
  margin-top: 12px;
  font-size: 14px;
  color: var(--accent);
  font-weight: 500;
}

.home-footer {
  text-align: center;
  margin-top: 32px;
  font-size: 14px;
  color: var(--ink-muted);
}

/* Sidebar project chip */
.project-chip {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-muted);
  padding: 2px 8px;
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 10px;
  margin-bottom: 8px;
  font-weight: 500;
}
.brand:hover .project-chip {
  color: var(--accent);
  border-color: var(--accent);
}

.empty-nav-hint {
  padding: 8px 24px;
  font-size: 13px;
  color: var(--ink-muted);
  font-style: italic;
}

/* ==========================================================================
   Capital section
   ========================================================================== */

.chapter-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.chapter-row {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 12px 14px;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-bottom: none;
  color: var(--ink);
}
.chapter-row:first-child { border-radius: 4px 4px 0 0; }
.chapter-row:last-child {
  border-bottom: 1px solid var(--rule);
  border-radius: 0 0 4px 4px;
}
.chapter-row:only-child { border-radius: 4px; }
.chapter-row:hover {
  background: var(--bg-panel);
  color: var(--ink);
  border-color: var(--accent);
  position: relative;
  z-index: 1;
}
.cr-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--ink-muted);
  font-weight: 500;
}
.cr-title {
  font-size: 16px;
  color: var(--ink);
}
.cr-hint {
  color: var(--ink-muted);
  font-style: italic;
  font-size: 13px;
  margin-left: 6px;
}
.cr-cards {
  font-size: 13px;
  color: var(--ink-muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.chapter-overview {
  background: var(--bg-card);
  border-left: 3px solid var(--accent);
  padding: 20px 26px;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-soft);
}
.chapter-overview p { margin: 0 0 12px 0; }
.chapter-overview p:last-child { margin-bottom: 0; }
.chapter-overview em { color: var(--ink); font-style: italic; }

.chapter-summary {
  padding: 4px 0;
}
.chapter-summary h4 {
  margin: 20px 0 8px 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--accent);
  font-variant-caps: small-caps;
  letter-spacing: 0.04em;
}
.chapter-summary h4:first-child { margin-top: 4px; }
.chapter-summary ul {
  margin: 0 0 12px 0;
  padding-left: 22px;
}
.chapter-summary li {
  margin-bottom: 6px;
  line-height: 1.5;
  color: var(--ink-soft);
}
.chapter-summary p {
  margin: 0 0 12px 0;
  color: var(--ink-soft);
  line-height: 1.5;
}

.cards-controls {
  display: flex;
  gap: 8px;
}

.capital-card-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.capital-card {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 16px 20px;
  display: grid;
  grid-template-columns: 32px 1fr;
  grid-template-rows: auto auto auto;
  gap: 4px 12px;
  align-items: start;
  position: relative;
}
.cc-num {
  grid-column: 1;
  grid-row: 1 / span 3;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--ink-muted);
  padding-top: 4px;
  font-variant-numeric: tabular-nums;
}
.cc-front {
  grid-column: 2;
  grid-row: 1;
  font-size: 16px;
  color: var(--ink);
  font-weight: 500;
  line-height: 1.45;
}
.cc-back {
  grid-column: 2;
  grid-row: 2;
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.5;
  padding-top: 8px;
  border-top: 1px dashed var(--rule-soft);
  margin-top: 8px;
  display: none;
}
.capital-card.flipped .cc-back { display: block; }
.cc-flip {
  grid-column: 2;
  grid-row: 3;
  justify-self: start;
  margin-top: 8px;
  font-size: 11px;
}
.capital-card.flipped {
  border-left: 3px solid var(--accent);
  padding-left: 17px;
}

/* ==========================================================================
   Monograph section
   ========================================================================== */

.file-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.file-row {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
}
.file-row:hover {
  border-color: var(--ink-muted);
}
.file-icon {
  width: 44px;
  height: 44px;
  border-radius: 4px;
  background: var(--bg-panel);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.03em;
}
.file-meta { min-width: 0; }
.file-name {
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.file-sub {
  font-size: 12px;
  color: var(--ink-muted);
  font-variant-numeric: tabular-nums;
}
.file-actions {
  display: flex;
  gap: 8px;
}

.preview-pane {
  margin-top: 24px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  background: var(--bg-card);
  overflow: hidden;
}
.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--rule);
  font-size: 14px;
  color: var(--ink-soft);
}
#preview-iframe {
  width: 100%;
  height: 80vh;
  border: 0;
  display: block;
  background: white;
}

/* ==========================================================================
   Home search box
   ========================================================================== */

.home-search {
  display: flex;
  gap: 8px;
  max-width: 640px;
  margin: 24px auto 20px auto;
}
.home-search input[type="search"] {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  background: var(--bg-card);
  font-family: inherit;
  font-size: 15px;
  color: var(--ink);
}
.home-search input[type="search"]:focus {
  outline: none;
  border-color: var(--accent);
}

/* ==========================================================================
   Sidebar search box
   ========================================================================== */

.sidebar-search {
  padding: 10px 24px 4px 24px;
  border-bottom: 1px solid var(--rule);
  background: var(--bg-panel);
  margin: 0;
}
.sidebar-search input[type="search"] {
  width: 100%;
  padding: 6px 10px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  background: white;
  font-family: inherit;
  font-size: 13px;
  color: var(--ink);
}
.sidebar-search input[type="search"]:focus {
  outline: none;
  border-color: var(--accent);
}

/* ==========================================================================
   Monograph chapter view
   ========================================================================== */

.chapter-content {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 32px 36px;
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  margin-bottom: 32px;
}
.chapter-content section {
  margin-bottom: 20px;
}
.chapter-content h1 {
  font-size: 26px;
  font-weight: 600;
  margin: 0 0 20px 0;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--rule);
  line-height: 1.2;
}
.chapter-content h2 {
  font-size: 20px;
  font-weight: 600;
  margin: 28px 0 12px 0;
  color: var(--accent);
}
.chapter-content h3 {
  font-size: 17px;
  font-weight: 600;
  margin: 20px 0 10px 0;
  color: var(--ink);
  text-transform: none;
  letter-spacing: 0;
  border: 0;
  padding: 0;
}
.chapter-content h4 {
  font-size: 15px;
  font-weight: 600;
  margin: 16px 0 8px 0;
  color: var(--ink-soft);
}
.chapter-content p {
  margin: 0 0 14px 0;
}
.chapter-content ul,
.chapter-content ol {
  margin: 0 0 14px 0;
  padding-left: 24px;
}
.chapter-content li {
  margin-bottom: 6px;
}
.chapter-content em { font-style: italic; }
.chapter-content strong { color: var(--ink); font-weight: 600; }
.chapter-content code {
  font-size: 0.9em;
  background: var(--code-bg);
  padding: 1px 5px;
  border-radius: 3px;
}
.chapter-content pre {
  background: var(--code-bg);
  padding: 12px 16px;
  border-radius: 3px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.5;
  margin: 0 0 14px 0;
}
.chapter-content pre code {
  background: transparent;
  padding: 0;
}
.chapter-content blockquote {
  margin: 14px 0;
  padding: 8px 16px;
  border-left: 3px solid var(--rule);
  color: var(--ink-soft);
  font-style: italic;
}
.chapter-content mjx-container[display="true"] {
  margin: 16px 0;
  overflow-x: auto;
  overflow-y: hidden;
}

/* Pandoc-generated theorem-like environments */
.chapter-content .theorem,
.chapter-content .proposition,
.chapter-content .lemma,
.chapter-content .corollary,
.chapter-content .definition,
.chapter-content .axiom,
.chapter-content .remark,
.chapter-content .example,
.chapter-content .claim,
.chapter-content .conjecture,
.chapter-content .observation,
.chapter-content .principle,
.chapter-content .note,
.chapter-content .theorem-like {
  display: block;
  padding: 12px 18px;
  margin: 14px 0;
  background: var(--bg);
  border-left: 3px solid var(--accent);
  border-radius: 0 3px 3px 0;
  line-height: 1.55;
}
.chapter-content .thm-label {
  font-weight: 700;
  color: var(--accent);
  margin-right: 4px;
}
.chapter-content .thm-title {
  font-weight: 500;
  color: var(--ink);
  font-style: normal;
  margin-right: 4px;
}
/* Definition-style envs use non-italic body */
.chapter-content .definition,
.chapter-content .axiom,
.chapter-content .remark,
.chapter-content .example,
.chapter-content .note {
  font-style: normal;
}
/* Plain-style envs (theorem, proposition, lemma, corollary) use italic body */
.chapter-content .theorem,
.chapter-content .proposition,
.chapter-content .lemma,
.chapter-content .corollary,
.chapter-content .claim,
.chapter-content .conjecture {
  font-style: italic;
}
/* Labels and titles stay non-italic even when body is italic */
.chapter-content .theorem .thm-label,
.chapter-content .theorem .thm-title,
.chapter-content .proposition .thm-label,
.chapter-content .proposition .thm-title,
.chapter-content .lemma .thm-label,
.chapter-content .lemma .thm-title,
.chapter-content .corollary .thm-label,
.chapter-content .corollary .thm-title {
  font-style: normal;
}
/* Math inside italic theorem bodies stays upright — MathJax handles its
   own font, but any leftover \emph or <em> nested inside gets reversed. */
.chapter-content .theorem em,
.chapter-content .proposition em,
.chapter-content .lemma em,
.chapter-content .corollary em {
  font-style: normal;
}
.chapter-content .proof {
  padding: 8px 18px;
  margin: 14px 0;
  background: var(--bg);
  border-left: 2px solid var(--rule);
  color: var(--ink);
  border-radius: 0 3px 3px 0;
  line-height: 1.55;
  display: block;
}
.chapter-content .proof .thm-label {
  font-weight: 600;
  color: var(--ink-soft);
}
.chapter-content .qed {
  color: var(--ink-muted);
  font-size: 1.1em;
  margin-left: 6px;
}
.chapter-content .xref,
.chapter-content .cite {
  color: var(--ink-muted);
  font-size: 0.9em;
  font-family: 'JetBrains Mono', monospace;
}

.render-warnings {
  background: rgba(139, 105, 20, 0.06);
  border-left: 3px solid var(--warn);
  padding: 10px 14px;
  margin-bottom: 20px;
  border-radius: 0 3px 3px 0;
  font-size: 13px;
}
.render-warnings summary {
  cursor: pointer;
  color: var(--warn);
  font-weight: 500;
}
.render-warnings ul {
  margin: 8px 0 0 0;
  padding-left: 20px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ink-muted);
}

.render-error {
  padding: 16px 20px;
  background: rgba(168, 50, 50, 0.05);
  border-left: 3px solid var(--danger);
  color: var(--ink);
  border-radius: 0 3px 3px 0;
}

.chapter-actions { margin-top: 24px; }

/* ==========================================================================
   Monograph hub — volume blocks
   ========================================================================== */

.mono-volume-block {
  margin-bottom: 24px;
}
.mvb-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-bottom: 8px;
  margin-bottom: 10px;
  border-bottom: 1px solid var(--rule);
}
.mvb-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  display: flex;
  gap: 10px;
  align-items: baseline;
}
.mvb-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.05em;
}
.mvb-count {
  font-size: 13px;
  color: var(--ink-muted);
  font-variant-numeric: tabular-nums;
}
.mvb-count em {
  font-style: italic;
  color: var(--ink-muted);
}

.chapter-row.completed { color: var(--ink-muted); }
.chapter-row.completed .cr-title { color: var(--ink-muted); }
.check-inline {
  color: var(--success);
  margin-left: 6px;
  font-weight: 600;
}

/* ==========================================================================
   Capital cards refined
   ========================================================================== */

.capital-card {
  display: grid;
  grid-template-columns: 32px 1fr auto;
  grid-template-rows: auto;
  gap: 0 12px;
  align-items: start;
}
.cc-num {
  grid-column: 1;
  grid-row: 1;
  padding-top: 4px;
}
.cc-body {
  grid-column: 2;
  grid-row: 1;
  min-width: 0;
}
.cc-actions {
  grid-column: 3;
  grid-row: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: flex-end;
  padding-top: 2px;
}
.cc-actions .ghost-btn {
  font-size: 11px;
  white-space: nowrap;
}
.cc-front {
  font-size: 16px;
  color: var(--ink);
  font-weight: 500;
  line-height: 1.45;
}
.cc-back {
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.5;
  padding-top: 8px;
  border-top: 1px dashed var(--rule-soft);
  margin-top: 8px;
  display: none;
}
.capital-card.flipped .cc-back { display: block; }
.capital-card.flipped {
  border-left: 3px solid var(--accent);
  padding-left: 17px;
}

/* ==========================================================================
   Modal (add-to-deck)
   ========================================================================== */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-overlay.hidden { display: none; }
.modal {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 6px;
  max-width: 520px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  border-bottom: 1px solid var(--rule);
  font-weight: 600;
  color: var(--ink);
}
.modal-close {
  font-size: 20px;
  line-height: 1;
  padding: 2px 8px;
}
.modal-body {
  padding: 20px;
}
.preview-card {
  padding: 12px 16px;
  background: var(--bg-panel);
  border: 1px dashed var(--rule);
  border-radius: 3px;
  margin-bottom: 16px;
  max-height: 240px;
  overflow-y: auto;
}
.preview-card .cc-front {
  font-size: 15px;
  font-weight: 500;
  margin-bottom: 8px;
}
.preview-card .cc-back {
  display: block;
  font-size: 14px;
  color: var(--ink-soft);
  padding-top: 8px;
  border-top: 1px dashed var(--rule-soft);
  margin-top: 8px;
}
.modal-field {
  display: block;
  margin-bottom: 14px;
}
.modal-field > span {
  display: block;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-weight: 500;
  margin-bottom: 6px;
}
.modal-field select {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  background: white;
  font-family: inherit;
  font-size: 14px;
  color: var(--ink);
}
.modal-field select:focus {
  outline: none;
  border-color: var(--accent);
}
.modal-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
}

/* ==========================================================================
   Search results
   ========================================================================== */

.search-form {
  display: flex;
  gap: 8px;
  margin: 16px 0;
}
.search-form input[type="search"] {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  background: var(--bg-card);
  font-family: inherit;
  font-size: 15px;
  color: var(--ink);
}
.search-form input[type="search"]:focus {
  outline: none;
  border-color: var(--accent);
}

.search-source-block {
  margin-bottom: 32px;
}
.search-results {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.search-result {
  display: block;
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--rule);
  border-radius: 3px;
  color: var(--ink);
}
.search-result:hover {
  color: var(--ink);
  border-color: var(--accent);
  border-left-color: var(--accent);
}
.search-src-curriculum { border-left-color: var(--accent); }
.search-src-capital { border-left-color: var(--warn); }
.search-src-monograph { border-left-color: var(--success); }
.search-src-note { border-left-color: var(--ink-muted); }
.sr-source {
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 4px;
  font-weight: 500;
}
.sr-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
  line-height: 1.35;
}
.sr-snippet {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.5;
}
.sr-snippet mark {
  background: rgba(122, 31, 31, 0.12);
  color: var(--accent);
  padding: 0 2px;
  border-radius: 2px;
}

/* ==========================================================================
   Capital chapter — 4-tab layout
   ========================================================================== */

.tab-bar {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--rule);
  margin: 24px 0 28px 0;
  overflow-x: auto;
  scrollbar-width: none;
}
.tab-bar::-webkit-scrollbar { display: none; }

.tab-btn {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 12px 20px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-muted);
  cursor: pointer;
  position: relative;
  white-space: nowrap;
  transition: color 0.15s ease, border-color 0.15s ease;
  display: flex;
  align-items: center;
  gap: 6px;
}
.tab-btn:hover { color: var(--ink); }
.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}
.tab-count {
  font-size: 11px;
  padding: 1px 6px;
  border-radius: 8px;
  background: var(--bg-panel);
  color: var(--ink-muted);
  font-variant-numeric: tabular-nums;
  font-weight: 500;
}
.tab-btn.active .tab-count {
  background: rgba(122, 31, 31, 0.08);
  color: var(--accent);
}
.tab-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* Chapter actions block on the overview tab */
.chapter-actions {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
}
.chapter-actions .rating-row,
.chapter-actions .completion-row {
  margin: 12px 0;
}

/* ==========================================================================
   Single-card viewer
   ========================================================================== */

.card-viewer {
  max-width: 720px;
  margin: 0 auto;
  padding: 8px 0;
}

.card-counter {
  text-align: center;
  color: var(--ink-muted);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}
.card-counter #card-current-idx {
  color: var(--ink);
  font-weight: 600;
}
.card-sep { margin: 0 4px; }

.single-card {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 6px;
  min-height: 280px;
  padding: 40px 44px 60px 44px;
  cursor: pointer;
  position: relative;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.single-card:hover {
  border-color: var(--ink-muted);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}
.single-card[data-flipped="true"] {
  border-left: 3px solid var(--accent);
  padding-left: 41px;
}
.single-card-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 200px;
}
.single-card-face {
  width: 100%;
  text-align: left;
  line-height: 1.55;
}
.single-card-front {
  font-size: 20px;
  color: var(--ink);
  font-weight: 500;
}
.single-card-back {
  display: none;
  font-size: 17px;
  color: var(--ink-soft);
  padding-top: 20px;
  border-top: 1px dashed var(--rule);
  margin-top: 20px;
  width: 100%;
}
.single-card[data-flipped="true"] .single-card-back { display: block; }

.single-card-flip-hint {
  position: absolute;
  bottom: 12px;
  right: 16px;
  background: transparent;
  border: 1px solid var(--rule);
  border-radius: 3px;
  padding: 4px 10px;
  font-size: 11px;
  color: var(--ink-muted);
  cursor: pointer;
  font-family: inherit;
  letter-spacing: 0.04em;
}
.single-card-flip-hint:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.card-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-top: 20px;
}
.card-nav .btn { min-width: 130px; }
.card-nav .btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.card-shortcuts {
  text-align: center;
  font-size: 11px;
  margin-top: 16px;
  color: var(--ink-muted);
}
kbd {
  padding: 1px 5px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  background: var(--bg-panel);
  color: var(--ink-soft);
  margin: 0 1px;
}

/* ==========================================================================
   Notes tab (Capital chapter)
   ========================================================================== */

.notes-tab-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
@media (max-width: 900px) {
  .notes-tab-grid { grid-template-columns: 1fr; }
}

.notes-label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-weight: 500;
  margin-bottom: 8px;
}
.notes-status {
  font-size: 11px;
  color: var(--ink-muted);
  letter-spacing: 0;
  text-transform: none;
  font-weight: normal;
}
.notes-tab-grid textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  background: var(--bg-card);
  font-family: 'EB Garamond', Georgia, serif;
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
  resize: vertical;
}
.notes-tab-grid textarea:focus {
  outline: none;
  border-color: var(--accent);
}
#capital-media-textarea {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  line-height: 1.5;
}
.notes-hint {
  margin-top: 6px;
  font-size: 12px;
}

.media-embeds {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 20px;
}
.media-embed {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  overflow: hidden;
}
.media-embed-label {
  padding: 6px 12px;
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-muted);
  border-bottom: 1px solid var(--rule);
  background: var(--bg-panel);
  font-weight: 500;
}
.media-embed-label code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: none;
  letter-spacing: 0;
  color: var(--ink-soft);
  padding: 0;
  background: transparent;
}
.media-embed-frame {
  position: relative;
  padding-bottom: 56.25%;  /* 16:9 */
  height: 0;
  overflow: hidden;
}
.media-embed-frame iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: 0;
}
.media-empty {
  padding: 24px 16px;
  text-align: center;
  border: 1px dashed var(--rule);
  border-radius: 4px;
  font-size: 13px;
  font-style: italic;
}

/* ==========================================================================
   LaTeX tabular tables in monograph chapters
   ========================================================================== */
.tabular-wrapper {
  margin: 16px 0;
  overflow-x: auto;
}
table.tabular {
  border-collapse: collapse;
  font-family: 'EB Garamond', Georgia, serif;
  font-size: 15px;
  color: var(--ink);
  min-width: 200px;
}
table.tabular tr {
  border-bottom: 1px solid var(--rule-soft);
}
table.tabular tr:first-child { border-top: 1px solid var(--rule); }
table.tabular tr:last-child { border-bottom: 1px solid var(--rule); }
table.tabular td {
  padding: 6px 14px;
  vertical-align: top;
  line-height: 1.45;
}
table.tabular td:first-child { padding-left: 0; }
table.tabular td:last-child { padding-right: 0; }

/* Custom theorem-like envs from \newtheorem/\declaretheorem — styling
   is defined in the main theorem-like block earlier in this file, so
   nothing more needed here. */