/* =========================================================================
   chapter.css — Журнальная типографика для прототипа главы 02
   Накладывается ПОВЕРХ shared.css (dark premium базовая палитра).
   Серифный шрифт для long-form чтения, узкая колонка, pull-quotes,
   inline-cards оборудования, full-bleed figures, аналитические врезки.
   ========================================================================= */

/* ---- 1. Lora — serif для бодикопи (Google Fonts через @import — просто) */
@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400;0,500;0,600;1,400;1,500&display=swap');

/* ---- 2. Tokens-расширения */
.chapter-page {
  --serif: 'Lora', 'Source Serif Pro', Georgia, 'Times New Roman', serif;
  --sans:  'Geologica', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --prose-max: 680px;
  --prose-px: 19px;
  --prose-lh: 1.65;
  --prose-color: #e8e4d8;          /* paper-on-dark, не чисто белый */
  --prose-color-soft: #b8b4a7;
  --paper-bg: #0e1012;              /* чуть теплее coal-deep */
  --paper-bg-raise: #14171a;
  --rule: rgba(232, 228, 216, 0.10);
  --rule-strong: rgba(232, 228, 216, 0.22);
  background: var(--paper-bg);
}

.chapter-page body,
body.chapter-page {
  background: var(--paper-bg);
  color: var(--prose-color);
}

/* ---- 3. Колонтитул — sticky навигация между главами */
.chapter-mast {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(14, 16, 18, 0.78);
  backdrop-filter: blur(14px) saturate(150%);
  -webkit-backdrop-filter: blur(14px) saturate(150%);
  border-bottom: 1px solid var(--rule);
  padding: 12px 24px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  align-items: center;
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.chapter-mast a {
  color: var(--prose-color);
  text-decoration: none;
  font-weight: 700;
  transition: color 200ms var(--ease);
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 4px 6px;
}
.chapter-mast a:hover { color: var(--ember); }
.chapter-mast a:focus-visible,
.chapter-side-nav-link:focus-visible,
.toc-list a:focus-visible,
.pager-link:focus-visible {
  outline: 2px solid var(--ember);
  outline-offset: 3px;
  border-radius: 2px;
}
.chapter-mast-prev { justify-self: start; }
.chapter-mast-prev .arrow { color: var(--ember); margin-right: 6px; }
.chapter-mast-next { justify-self: end; text-align: right; }
.chapter-mast-next .arrow { color: var(--ember); margin-left: 6px; }
.chapter-mast-center {
  justify-self: center;
  display: inline-flex;
  align-items: center;
  gap: 18px;
}
.chapter-mast-center .pager {
  color: var(--prose-color-soft);
  font-weight: 600;
  border-left: 1px solid var(--rule);
  padding-left: 18px;
}
.chapter-mast-center .pager .ember { color: var(--ember); }
.chapter-mast-prev.is-disabled,
.chapter-mast-next.is-disabled {
  opacity: 0.32;
  pointer-events: none;
}

/* ---- 3a. Боковая sticky-навигация по подглавам */
.chapter-side-nav {
  position: fixed;
  top: 50%;
  right: 24px;
  transform: translateY(-50%);
  z-index: 30;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 14px 12px 8px;
  border-radius: 18px;
  background: rgba(14, 16, 18, 0.62);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border: 1px solid var(--rule);
  opacity: 0;
  pointer-events: none;
  transition: opacity 280ms var(--ease);
}
.chapter-side-nav.is-visible {
  opacity: 1;
  pointer-events: auto;
}
.chapter-side-nav-link {
  display: grid;
  grid-template-columns: 24px 1fr;
  align-items: center;
  gap: 10px;
  padding: 6px 10px 6px 6px;
  border-radius: 999px;
  color: var(--prose-color-soft);
  font-family: var(--sans);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-decoration: none;
  white-space: nowrap;
  transition: color 200ms var(--ease), background 200ms var(--ease);
}
.chapter-side-nav-link::before {
  content: "";
  display: block;
  height: 1px;
  background: var(--rule-strong);
  transition: background 200ms var(--ease), height 200ms var(--ease);
}
.chapter-side-nav-link:hover {
  color: var(--prose-color);
  background: rgba(255, 255, 255, 0.04);
}
.chapter-side-nav-link.is-active {
  color: var(--ember);
}
.chapter-side-nav-link.is-active::before {
  background: var(--ember);
  height: 2px;
}

/* mobile + ноутбуки до 1180px: side-nav скрыт */
@media (max-width: 1180px) {
  .chapter-side-nav { display: none; }
}

@media (max-width: 680px) {
  .chapter-mast {
    padding: 10px 14px;
    font-size: 10px;
    letter-spacing: 0.12em;
    grid-template-columns: auto 1fr auto;
    gap: 12px;
  }
  .chapter-mast-center { gap: 0; }
  .chapter-mast-center .home-label,
  .chapter-mast-center .pager .full-name { display: none; }
  .chapter-mast-prev .label,
  .chapter-mast-next .label { display: none; }
}

/* ---- 4. Cover главы — full-bleed cinematic */
.chapter-cover {
  position: relative;
  height: 92vh;
  min-height: 540px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: 0 0 96px;
}
.chapter-cover-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.chapter-cover-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 35%;
  filter: saturate(0.92) contrast(1.06) brightness(0.78);
}
.chapter-cover-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(7,8,10,0.55) 0%, rgba(7,8,10,0.10) 35%, rgba(7,8,10,0.92) 100%),
    radial-gradient(ellipse at 20% 80%, rgba(217,101,46,0.12) 0%, transparent 55%);
  z-index: 1;
}
.chapter-cover-inner {
  position: relative;
  z-index: 2;
  max-width: 1080px;
  width: 100%;
  margin: 0 auto;
  padding: 0 32px;
}
.chapter-cover-kicker {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 8px 16px 8px 14px;
  border: 1px solid var(--rule-strong);
  border-radius: 999px;
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  margin-bottom: 28px;
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.20em;
  text-transform: uppercase;
  color: var(--prose-color);
}
.chapter-cover-kicker::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--ember);
  box-shadow: 0 0 0 4px rgba(217,101,46,0.18);
}
.chapter-cover-title {
  margin: 0 0 24px;
  font-family: var(--sans);
  font-size: clamp(48px, 8vw, 120px);
  font-weight: 300;
  line-height: 0.96;
  letter-spacing: -0.035em;
  color: #f3f1e8;
  max-width: 14ch;
}
.chapter-cover-title em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  color: var(--ember);
}
.chapter-cover-lead {
  max-width: 600px;
  font-family: var(--serif);
  font-size: clamp(16px, 1.6vw, 22px);
  font-style: italic;
  line-height: 1.5;
  color: var(--prose-color);
}
.chapter-cover-actions {
  margin-top: 32px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.cover-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 56px;
  padding: 0 32px;
  border-radius: 999px;
  background: var(--ember);
  color: #0e1012;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  transition: background 200ms var(--ease), transform 160ms var(--ease);
}
.cover-cta:hover {
  background: #ec7a3f;
  transform: translateY(-2px);
}

/* финальный CTA-блок в конце главы */
.chapter-final-cta {
  padding: 96px 24px;
  text-align: center;
  border-top: 1px solid var(--rule-strong);
  background: linear-gradient(180deg, rgba(217,101,46,0.05) 0%, rgba(217,101,46,0) 100%);
}
.chapter-final-cta .prose {
  margin-bottom: 32px;
  text-align: left;
}
.chapter-final-cta .prose .lead {
  font-size: clamp(20px, 2.4vw, 28px);
  color: var(--prose-color);
  font-weight: 500;
}
.chapter-final-cta .final-cta-actions {
  display: flex;
  justify-content: center;
}

/* ---- 5. Внутреннее оглавление главы */
.chapter-toc {
  max-width: 880px;
  margin: 0 auto;
  padding: 96px 32px 64px;
  border-bottom: 1px solid var(--rule);
}
.chapter-toc-h {
  margin: 0 0 32px;
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--prose-color-soft);
}
.toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}
.toc-list li {
  border-top: 1px solid var(--rule);
}
.toc-list li:last-child,
.toc-list li:nth-last-child(2) { border-bottom: 1px solid var(--rule); }
.toc-list a {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 24px;
  padding: 22px 24px 22px 0;
  text-decoration: none;
  color: var(--prose-color);
  font-family: var(--sans);
  transition: background 240ms var(--ease), padding 240ms var(--ease);
}
.toc-list a:hover {
  background: rgba(232, 228, 216, 0.04);
  padding-left: 12px;
}
.toc-list .toc-num {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--ember);
  min-width: 56px;
}
.toc-list .toc-name {
  font-size: 18px;
  font-weight: 400;
  letter-spacing: -0.005em;
}

/* ---- 6. Subchapter (подглава) */
.subchapter {
  padding: 96px 0 48px;
  border-bottom: 1px solid var(--rule);
}
.subchapter-head {
  max-width: var(--prose-max);
  margin: 0 auto 56px;
  padding: 0 24px;
}
.subchapter-num {
  display: block;
  margin-bottom: 16px;
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ember);
}
.subchapter-title {
  margin: 0;
  font-family: var(--sans);
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: #f3f1e8;
}
.subchapter-title em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  color: var(--ember);
}

/* ---- 7. .prose — long-form text (узкая колонка serif) */
.prose {
  max-width: var(--prose-max);
  margin: 0 auto;
  padding: 0 24px;
  font-family: var(--serif);
  font-size: var(--prose-px);
  line-height: var(--prose-lh);
  color: var(--prose-color);
}
.prose p {
  margin: 0 0 1.2em;
}
.prose p.lead {
  font-size: 1.18em;
  font-style: italic;
  color: #f1eee2;
  margin-bottom: 1.6em;
}
.prose strong {
  font-weight: 600;
  color: #f3f1e8;
}
.prose em { font-style: italic; }
.prose a {
  color: var(--ember);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

/* «буквица» (drop-cap) на первом параграфе подглавы — журнальный жест */
.prose .lead::first-letter,
.prose p.with-dropcap::first-letter {
  initial-letter: 2 1;
  font-family: var(--sans);
  font-weight: 300;
  font-size: 3.6em;
  line-height: 0.9;
  margin-right: 8px;
  color: var(--ember);
  float: left;
  padding: 8px 8px 0 0;
}

/* ---- 8. Pull-quote */
.pull-quote {
  max-width: 820px;
  margin: 64px auto;
  padding: 0 32px 0 56px;
  position: relative;
  font-family: var(--serif);
  font-size: clamp(22px, 2.4vw, 32px);
  font-style: italic;
  font-weight: 500;
  line-height: 1.36;
  color: #f3f1e8;
}
.pull-quote::before {
  content: "";
  position: absolute;
  left: 24px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--ember) 0%, var(--ember) 60%, transparent 100%);
}
.pull-quote cite {
  display: block;
  margin-top: 14px;
  font-family: var(--sans);
  font-size: 12px;
  font-style: normal;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--prose-color-soft);
}

/* ---- 9. Inline-card — карточка оборудования внутри prose */
.inline-card {
  max-width: 820px;
  margin: 40px auto;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 28px;
  padding: 22px;
  border: 1px solid var(--rule);
  border-radius: 18px;
  background: rgba(255,255,255,0.025);
}
.inline-card-media {
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--paper-bg-raise);
}
.inline-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.94) contrast(1.06) brightness(0.96);
}
.inline-card-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.inline-card-tag {
  font-family: var(--sans);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.20em;
  text-transform: uppercase;
  color: var(--ember);
}
.inline-card-name {
  font-family: var(--sans);
  font-size: 22px;
  font-weight: 500;
  line-height: 1.18;
  letter-spacing: -0.005em;
  color: #f3f1e8;
}
.inline-card-desc {
  font-family: var(--serif);
  font-size: 14.5px;
  font-style: italic;
  line-height: 1.5;
  color: var(--prose-color-soft);
}
.inline-card-spec {
  list-style: none;
  margin: 6px 0 0;
  padding: 12px 0 0;
  border-top: 1px solid var(--rule);
  font-family: var(--sans);
  font-size: 13px;
  display: grid;
  gap: 6px;
}
.inline-card-spec li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--prose-color-soft);
}
.inline-card-spec li strong {
  font-weight: 600;
  color: #f3f1e8;
  font-variant-numeric: tabular-nums;
}

/* mini-card row — три плоские карточки в ряд (для мелких единиц) */
.card-row {
  max-width: 820px;
  margin: 32px auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.inline-card-mini {
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--rule);
  border-radius: 14px;
  background: rgba(255,255,255,0.02);
}
.inline-card-mini-media {
  border-radius: 10px;
  overflow: hidden;
  aspect-ratio: 4/3;
}
.inline-card-mini-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: saturate(0.94) contrast(1.05) brightness(0.95);
}
.inline-card-mini strong {
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  color: #f3f1e8;
  line-height: 1.25;
}
.inline-card-mini span {
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--prose-color-soft);
}

/* ---- 10. Bleed-figure — full-bleed фото с capt journal */
.bleed-figure {
  margin: 80px 0;
}
.bleed-figure img {
  width: 100%;
  max-height: 78vh;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.06) brightness(0.94);
}
.bleed-figure figcaption {
  max-width: var(--prose-max);
  margin: 18px auto 0;
  padding: 0 24px;
  font-family: var(--serif);
  font-size: 14px;
  font-style: italic;
  line-height: 1.5;
  color: var(--prose-color-soft);
}
.bleed-figure figcaption strong {
  font-family: var(--sans);
  font-style: normal;
  font-weight: 700;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  font-size: 11px;
  color: var(--ember);
  display: block;
  margin-bottom: 6px;
}

/* ---- 11. Data-block — аналитическая врезка (типографически сухая) */
.data-block {
  max-width: 880px;
  margin: 64px auto;
  padding: 36px;
  border: 1px solid var(--rule-strong);
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255,255,255,0.025) 0%, rgba(255,255,255,0.012) 100%);
  font-family: var(--sans);
}
.data-block-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 22px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--rule);
}
.data-block-tag {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ember);
}
.data-block-title {
  margin: 0;
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.005em;
  color: #f3f1e8;
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.data-table th,
.data-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}
.data-table thead th {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--prose-color-soft);
  border-bottom: 1px solid var(--rule-strong);
}
.data-table tbody td {
  color: #ddd9c9;
}
.data-table .num {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: #f3f1e8;
  white-space: nowrap;
}
.data-table .num.ember { color: var(--ember); }
.data-table .winner { background: rgba(217, 101, 46, 0.06); }
.data-block-note {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
  font-family: var(--serif);
  font-size: 13px;
  font-style: italic;
  line-height: 1.55;
  color: var(--prose-color-soft);
}

/* ---- 12. Registry-table (полный перечень главы) */
.chapter-registry {
  padding: 96px 0;
  border-top: 1px solid var(--rule-strong);
}
.chapter-registry-head {
  max-width: 1080px;
  margin: 0 auto 40px;
  padding: 0 32px;
}
.chapter-registry-tag {
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--prose-color-soft);
  margin-bottom: 14px;
  display: block;
}
.chapter-registry-title {
  font-family: var(--sans);
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
  color: #f3f1e8;
}
.chapter-registry-sub {
  font-family: var(--serif);
  font-size: 16px;
  font-style: italic;
  color: var(--prose-color-soft);
  max-width: 640px;
  margin: 0;
}
.registry-table-wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 32px;
  overflow-x: auto;
}
.registry-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--sans);
  font-size: 14px;
}
.registry-table thead th {
  padding: 14px 12px;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--prose-color-soft);
  text-align: left;
  border-bottom: 1px solid var(--rule-strong);
}
.registry-table tbody td {
  padding: 14px 12px;
  border-bottom: 1px solid var(--rule);
  color: var(--prose-color);
  vertical-align: middle;
}
.registry-table tbody tr:hover td { background: rgba(232, 228, 216, 0.025); }
.registry-table .id {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: var(--ember);
  white-space: nowrap;
}
.registry-table .qty { text-align: center; font-variant-numeric: tabular-nums; font-weight: 600; }
.registry-table .status-ok::before {
  content: "";
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #6cba6c;
  margin-right: 8px;
  vertical-align: middle;
}
.registry-table .status-rest::before {
  content: "";
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--ember);
  margin-right: 8px;
  vertical-align: middle;
}

.chapter-registry-cta {
  max-width: 1080px;
  margin: 48px auto 0;
  padding: 0 32px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 24px;
}
.chapter-registry-cta .btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 28px;
  border-radius: 999px;
  background: var(--ember);
  color: #0e1012;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: transform 200ms var(--ease), background 200ms var(--ease);
}
.chapter-registry-cta .btn:hover {
  background: #ec7a3f;
  transform: translateY(-2px);
}
.chapter-registry-cta-note {
  font-family: var(--serif);
  font-size: 14px;
  font-style: italic;
  color: var(--prose-color-soft);
  max-width: 360px;
}

/* ---- 13. Pager (вперёд → следующая глава) */
.chapter-pager-foot {
  padding: 96px 32px 80px;
  border-top: 1px solid var(--rule-strong);
  background: var(--paper-bg-raise);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 1280px;
  margin: 0 auto;
}
.pager-prev,
.pager-next {
  display: grid;
  gap: 8px;
}
.pager-next { text-align: right; }
.pager-label {
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.20em;
  text-transform: uppercase;
  color: var(--prose-color-soft);
}
.pager-link {
  display: block;
  font-family: var(--sans);
  font-size: clamp(24px, 2.6vw, 36px);
  font-weight: 300;
  letter-spacing: -0.015em;
  color: #f3f1e8;
  text-decoration: none;
  transition: color 200ms var(--ease);
}
.pager-link:hover { color: var(--ember); }
.pager-hint {
  font-family: var(--serif);
  font-size: 14px;
  font-style: italic;
  color: var(--prose-color-soft);
  margin: 0;
  line-height: 1.5;
}

/* ---- 14. Колофон */
.chapter-colophon {
  padding: 56px 32px;
  background: var(--paper-bg);
  border-top: 1px solid var(--rule);
  text-align: center;
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.10em;
  color: var(--prose-color-soft);
}
.chapter-colophon p { margin: 4px 0; }
.chapter-colophon strong { color: var(--prose-color); font-weight: 700; }

/* ---- 15. Responsive */
@media (max-width: 980px) {
  .toc-list { grid-template-columns: 1fr; }
  .toc-list li:nth-last-child(2) { border-bottom: 0; }
  .inline-card { grid-template-columns: 1fr; }
  .inline-card-media { aspect-ratio: 16/9; }
  .card-row { grid-template-columns: repeat(2, 1fr); }
  .chapter-pager-foot { grid-template-columns: 1fr; }
  .pager-next { text-align: left; }
}

@media (max-width: 680px) {
  .chapter-cover { height: auto; min-height: 78vh; padding: 96px 0 64px; }
  .chapter-cover-title { font-size: 44px; }
  .chapter-cover-lead { font-size: 16px; }
  .chapter-toc { padding: 64px 24px 48px; }
  .subchapter { padding: 64px 0 32px; }
  .subchapter-head { margin-bottom: 36px; }
  .subchapter-title { font-size: 30px; }
  .prose { font-size: 17px; line-height: 1.6; }
  .pull-quote { font-size: 22px; padding-left: 36px; margin: 48px auto; }
  .pull-quote::before { left: 18px; }
  .inline-card { padding: 16px; gap: 18px; border-radius: 14px; }
  .inline-card-media { aspect-ratio: 16/10; }
  .card-row { grid-template-columns: 1fr; }
  .bleed-figure { margin: 56px 0; }
  .bleed-figure img { max-height: 60vh; }
  .data-block {
    padding: 22px 18px;
    border-radius: 16px;
    margin: 48px auto;
    max-width: calc(100vw - 24px);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .data-block-head { flex-direction: column; gap: 6px; }
  .data-block-title { font-size: 18px; line-height: 1.2; }
  .data-table { font-size: 12.5px; min-width: 460px; }
  .data-table th, .data-table td { padding: 8px 10px; vertical-align: top; }
  .data-table thead th { font-size: 9.5px; letter-spacing: 0.12em; }
  .data-block-note { font-size: 12px; line-height: 1.5; }
  .chapter-registry { padding: 64px 0; }
  .chapter-registry-cta { gap: 14px; }
  .chapter-pager-foot { padding: 64px 24px 56px; }
}

@media (max-width: 380px) {
  .chapter-cover-kicker { font-size: 9px; padding: 6px 12px 6px 11px; }
  .chapter-cover-title { font-size: 36px; }
  .chapter-cover-inner { padding: 0 20px; }
  .chapter-toc { padding: 48px 16px 36px; }
  .toc-list a { padding: 18px 16px 18px 0; gap: 18px; }
  .toc-list .toc-name { font-size: 16px; }
  .subchapter-title { font-size: 24px; }
  .subchapter-head { padding: 0 18px; }
  .prose { font-size: 16px; padding: 0 18px; line-height: 1.62; }
  .pull-quote { font-size: 19px; padding: 0 16px 0 28px; }
  .pull-quote::before { left: 12px; width: 2px; }
  .inline-card { padding: 14px; }
  .inline-card-name { font-size: 18px; }
  .data-block { padding: 18px 14px; max-width: calc(100vw - 16px); }
  .data-table { font-size: 12px; min-width: 420px; }
  .data-table th, .data-table td { padding: 7px 8px; }
  .registry-table { font-size: 12.5px; }
  .registry-table thead th, .registry-table tbody td { padding: 10px 8px; }
  .chapter-mast {
    padding: 8px 10px;
    font-size: 9px;
    letter-spacing: 0.10em;
    gap: 8px;
  }
  .chapter-mast a { padding: 4px 4px; }
  .bleed-figure figcaption { padding: 0 18px; font-size: 13px; }
  .chapter-final-cta { padding: 64px 18px; }
  .chapter-pager-foot { padding: 56px 18px 48px; }
  .chapter-colophon { padding: 40px 18px; }
  .chapter-registry-head { padding: 0 18px; }
  .registry-table-wrap { padding: 0 18px; }
  .chapter-registry-cta { padding: 0 18px; }
}