:root {
  --ink: #1a1a1a;
  --ink-soft: #3a3a3a;
  --ink-muted: #6b6b6b;
  --ink-faint: #9a9a92;
  --paper: #faf8f3;
  --paper-warm: #f3efe5;
  --paper-elevated: #ffffff;
  --border: #e6e1d5;
  --border-subtle: #efeae0;
  --accent: #7a4523;
  --accent-soft: #c08158;
  --accent-bg: #f3e8df;
  --highlight: #fff4e1;
  --shadow-sm: 0 1px 2px rgba(50, 40, 20, 0.04);
  --shadow-md: 0 4px 18px rgba(50, 40, 20, 0.06);
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-hebrew: 'Frank Ruhl Libre', 'SBL Hebrew', 'Times New Roman', serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  --max-content: 720px;
  --sidebar-w: 280px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
:is(button,a[data-page],a[data-v5-series]) { font-family: inherit; cursor: pointer; background: none; border: none; color: inherit; padding: 0; }

/* ===== Layout ===== */
.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100vh;
}
.sidebar {
  background: var(--paper-warm);
  border-right: 1px solid var(--border);
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  padding: 28px 22px 32px;
  display: flex;
  flex-direction: column;
}
.sidebar-header {
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
}
.sidebar-eyebrow {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 6px;
}
.sidebar-title {
  font-family: var(--font-display);
  font-size: 26px;
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.sidebar-subtitle {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 18px;
  color: var(--accent);
  margin-top: 2px;
}

/* Chapter switcher */
.chapter-switcher {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
  padding: 4px;
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.chapter-tab {
  flex: 1;
  padding: 7px 10px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-muted);
  border-radius: 5px;
  text-align: center;
  font-family: var(--font-body);
  transition: background-color 0.15s ease, color 0.15s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.chapter-tab:hover { color: var(--ink); background: rgba(122, 69, 35, 0.04); }
.chapter-tab.active {
  background: var(--accent);
  color: white;
  font-weight: 600;
}
.chapter-tab .ch-num {
  font-family: var(--font-display);
  font-size: 18px;
  line-height: 1;
  font-style: italic;
  letter-spacing: 0.02em;
}
.chapter-tab .ch-label {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
}

.nav-section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin: 20px 0 10px;
  padding-left: 10px;
}
.nav-list { list-style: none; display: flex; flex-direction: column; gap: 1px; }
.nav-item {
  display: flex;
  width: 100%;
  align-items: baseline;
  gap: 12px;
  padding: 9px 10px;
  border-radius: 6px;
  color: var(--ink-soft);
  font-size: 14px;
  text-align: left;
  transition: background-color 0.15s ease, color 0.15s ease;
  cursor: pointer;
}
.nav-item:hover {
  background: rgba(122, 69, 35, 0.06);
  color: var(--ink);
}
.nav-item.active {
  background: var(--accent-bg);
  color: var(--accent);
  font-weight: 500;
}
.nav-num {
  font-family: var(--font-display);
  font-size: 16px;
  width: 24px;
  text-align: right;
  flex-shrink: 0;
  color: var(--ink-faint);
}
.nav-item.active .nav-num { color: var(--accent); }
.nav-label {
  font-family: var(--font-body);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.sidebar-footer {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--border-subtle);
  font-size: 12px;
  color: var(--ink-muted);
  line-height: 1.5;
}
.sidebar-footer :is(button,a[data-page],a[data-v5-series]) {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--accent);
  font-weight: 500;
  margin-top: 6px;
  transition: opacity 0.15s ease;
}
.sidebar-footer :is(button,a[data-page],a[data-v5-series]):hover { opacity: 0.7; }

/* ===== Main content ===== */
.main {
  padding: 60px clamp(24px, 5vw, 80px) 120px;
  max-width: calc(var(--max-content) + 200px);
  margin: 0 auto;
  width: 100%;
}
.page-intro {
  margin-bottom: 80px;
  padding-bottom: 56px;
  border-bottom: 1px solid var(--border);
}
.page-intro .eyebrow {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 14px;
}
.page-intro h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1.0;
  letter-spacing: -0.015em;
  margin-bottom: 18px;
  font-weight: 400;
}
.page-intro h1 em {
  font-style: italic;
  color: var(--accent);
}
.page-intro .lede {
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1.45;
  color: var(--ink-soft);
  font-style: italic;
  max-width: 580px;
  margin-bottom: 32px;
}
.intro-detail {
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--ink-soft);
  max-width: var(--max-content);
}
.intro-detail p { margin-bottom: 14px; }
.intro-detail p:last-child { margin-bottom: 0; }
.intro-detail strong { color: var(--ink); font-weight: 600; }

/* ===== Mishnah ===== */
.mishnah {
  margin-bottom: 96px;
  scroll-margin-top: 24px;
}
.mishnah-header {
  margin-bottom: 32px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
}
.mishnah-eyebrow {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 10px;
}
.mishnah-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  line-height: 1.0;
  letter-spacing: -0.01em;
  font-weight: 400;
  margin-bottom: 28px;
}

.text-block {
  background: var(--paper-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: 28px 32px;
  margin-bottom: 32px;
  box-shadow: var(--shadow-sm);
}
.text-hebrew {
  font-family: var(--font-hebrew);
  font-size: 22px;
  line-height: 1.85;
  text-align: right;
  direction: rtl;
  color: var(--ink);
  margin-bottom: 22px;
}
.text-divider {
  height: 1px;
  background: var(--border-subtle);
  margin: 22px 0;
}
.text-english {
  font-family: var(--font-display);
  font-size: 19px;
  line-height: 1.55;
  color: var(--ink-soft);
  font-style: italic;
}

.mishnah-intro {
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--ink-soft);
  background: var(--paper-warm);
  padding: 20px 24px;
  border-left: 2px solid var(--accent-soft);
  border-radius: 0 4px 4px 0;
  margin-bottom: 36px;
}
.mishnah-intro strong { color: var(--ink); font-weight: 600; }
.mishnah-intro em { color: var(--ink); font-style: italic; }

/* Section heading */
.section-label {
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-weight: 600;
  margin: 40px 0 24px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.expand-all-btn {
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: none;
  color: var(--accent);
  font-weight: 500;
  transition: opacity 0.15s ease;
}
.expand-all-btn:hover { opacity: 0.7; }

/* ===== Phrase ===== */
.phrase {
  margin-bottom: 36px;
}
.phrase-header { margin-bottom: 16px; }
.phrase-num {
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-weight: 500;
  margin-bottom: 8px;
}
.phrase-hebrew {
  font-family: var(--font-hebrew);
  font-size: 22px;
  line-height: 1.5;
  text-align: right;
  direction: rtl;
  color: var(--ink);
  margin-bottom: 8px;
}
.phrase-english {
  font-family: var(--font-display);
  font-size: 19px;
  line-height: 1.4;
  color: var(--accent);
  font-style: italic;
}

/* ===== Question (dropdown) ===== */
.question {
  border-bottom: 1px solid var(--border-subtle);
}
.question:last-child { border-bottom: none; }
.question-toggle {
  display: flex;
  width: 100%;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 0;
  text-align: left;
  font-family: var(--font-body);
  transition: color 0.15s ease;
}
.question-toggle:hover { color: var(--accent); }
.question-letter {
  font-family: var(--font-display);
  font-size: 22px;
  font-style: italic;
  color: var(--accent);
  line-height: 1.0;
  margin-top: 2px;
  flex-shrink: 0;
  width: 24px;
  text-align: center;
}
.question-text {
  flex: 1;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.5;
  color: var(--ink);
}
.question-text em { font-style: italic; color: var(--ink-soft); }
.question-text strong { font-weight: 600; }
.question-chevron {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 4px;
  color: var(--ink-muted);
  transition: transform 0.2s ease, color 0.15s ease;
}
.question.open .question-chevron {
  transform: rotate(180deg);
  color: var(--accent);
}
.question-toggle:hover .question-chevron { color: var(--accent); }
.question-body {
  display: none;
  padding: 0 0 24px 38px;
}
.question.open .question-body { display: block; animation: fadeIn 0.25s ease; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}
.answer-list {
  list-style: none;
  counter-reset: ans;
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 18px;
}
.answer-item {
  position: relative;
  padding-left: 32px;
  counter-increment: ans;
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink-soft);
}
.answer-item::before {
  content: counter(ans);
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--accent);
  font-weight: 400;
  line-height: 1.4;
  width: 22px;
  text-align: center;
}
.answer-item strong { color: var(--ink); font-weight: 600; }
.answer-item em { font-style: italic; color: var(--ink); }
.where-to-look {
  margin-top: 14px;
  padding: 14px 18px;
  background: var(--paper-warm);
  border-radius: 4px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--ink-muted);
  font-style: italic;
}
.where-to-look strong {
  display: block;
  font-style: normal;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  font-weight: 600;
  margin-bottom: 6px;
}

/* ===== Takeaways ===== */
.takeaways {
  margin-top: 60px;
  padding: 36px 36px 40px;
  background: var(--paper-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  box-shadow: var(--shadow-sm);
}
.takeaways .section-label {
  margin-top: 0;
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 24px;
}
.takeaway-list {
  list-style: none;
  counter-reset: tk;
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.takeaway-item {
  position: relative;
  padding-left: 44px;
  counter-increment: tk;
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--ink-soft);
}
.takeaway-item::before {
  content: counter(tk);
  position: absolute;
  left: 0;
  top: -2px;
  font-family: var(--font-display);
  font-size: 28px;
  color: var(--accent);
  font-weight: 400;
  width: 32px;
  text-align: center;
  line-height: 1.0;
}
.takeaway-item strong { color: var(--ink); font-weight: 600; }
.takeaway-item em { font-style: italic; color: var(--ink); }

/* ===== Mishnah pagination footer ===== */
.mishnah-pagination {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 60px;
  padding-top: 28px;
  border-top: 1px solid var(--border-subtle);
}
.pagination-btn {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 20px;
  border: 1px solid var(--border);
  border-radius: 6px;
  text-align: left;
  flex: 1;
  max-width: 280px;
  background: var(--paper-elevated);
  transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}
.pagination-btn:hover {
  border-color: var(--accent-soft);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.pagination-btn.next { text-align: right; align-items: flex-end; margin-left: auto; }
.pagination-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  pointer-events: none;
}
.pagination-label {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-weight: 600;
}
.pagination-title {
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--ink);
  font-style: italic;
}

/* ===== Mobile menu ===== */
.mobile-header {
  display: none;
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper);
  border-bottom: 1px solid var(--border);
  padding: 12px 20px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.mobile-title-group {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  flex: 1;
  min-width: 0;
}
.mobile-eyebrow {
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-weight: 600;
}
.mobile-current {
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--ink);
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.mobile-chapter-tabs {
  display: flex;
  gap: 4px;
  padding: 3px;
  background: var(--paper-warm);
  border: 1px solid var(--border);
  border-radius: 6px;
  flex-shrink: 0;
}
.mobile-chapter-tabs .chapter-tab {
  font-size: 11px;
  padding: 5px 10px;
  font-weight: 600;
}
.mobile-chapter-tabs .chapter-tab .ch-num { font-size: 15px; font-family: var(--font-display); font-style: italic; }
.mobile-chapter-tabs .chapter-tab .ch-label { font-size: 11px; }
.menu-btn {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  border: 1px solid var(--border);
  flex-shrink: 0;
}
.menu-btn:hover { background: var(--paper-warm); }
.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(20, 16, 10, 0.4);
  z-index: 60;
  backdrop-filter: blur(2px);
}
.mobile-overlay.open { display: block; animation: fadeOverlay 0.2s ease; }
@keyframes fadeOverlay { from { opacity: 0; } to { opacity: 1; } }
.mobile-drawer {
  position: fixed;
  top: 0; right: 0;
  width: 88%;
  max-width: 360px;
  height: 100vh;
  background: var(--paper);
  z-index: 70;
  padding: 24px 20px 32px;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: -10px 0 30px rgba(50, 40, 20, 0.1);
}
.mobile-drawer.open { transform: translateX(0); }
.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border-subtle);
}
.drawer-title {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--ink);
}
.drawer-close {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-muted);
}
.drawer-close:hover { background: var(--paper-warm); color: var(--ink); }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .mobile-header { display: flex; }
  .main { padding: 28px 20px 80px; }
  .mishnah { margin-bottom: 64px; }
  .mishnah-header { margin-bottom: 24px; padding-bottom: 22px; }
  .mishnah-title { font-size: 1.75rem; }
  .text-block { padding: 22px 20px; }
  .text-hebrew { font-size: 19px; line-height: 1.7; }
  .text-english { font-size: 17px; }
  .phrase-hebrew { font-size: 19px; }
  .phrase-english { font-size: 17px; }
  .question-text { font-size: 15px; }
  .question-body { padding-left: 32px; }
  .answer-item { font-size: 14.5px; padding-left: 28px; }
  .answer-item::before { font-size: 16px; width: 20px; }
  .takeaways { padding: 24px 22px 28px; }
  .takeaway-item { padding-left: 38px; font-size: 14.5px; }
  .takeaway-item::before { font-size: 24px; width: 28px; }
  .mishnah-pagination { flex-direction: column; }
  .pagination-btn { max-width: none; }
  .pagination-btn.next { margin-left: 0; }
  .page-intro h1 { font-size: 2.25rem; }
  .page-intro .lede { font-size: 18px; }
}

/* Print */
@media print {
  .sidebar, .mobile-header, .mishnah-pagination, .expand-all-btn { display: none; }
  .app { grid-template-columns: 1fr; }
  .main { padding: 20px; max-width: 100%; }
  .question-body { display: block !important; }
  .question-chevron { display: none; }
  body { background: white; color: black; }
  .takeaways { box-shadow: none; }
  .mishnah { page-break-after: always; }
}

/* Selection */
::selection { background: var(--accent-bg); color: var(--accent); }

/* Chapter-switcher fix-up for 5-chapter layout */
.chapter-switcher { padding: 3px; gap: 3px; }
.chapter-tab { padding: 6px 3px; min-width: 0; }
.chapter-tab .ch-label { display: none; }
.chapter-tab .ch-num { font-size: 16px; letter-spacing: 0.01em; }