/* Reading archive — warm paper, ink and cinnabar. Scoped to body.reading-page. */
body.reading-page {
  --paper: #f4efe4;
  --paper-deep: #ece4d4;
  --ink: #1b1813;
  --ink-soft: #4a443a;
  --ink-mute: #7a7163;
  --rule: rgba(27, 24, 19, 0.16);
  --rule-soft: rgba(27, 24, 19, 0.09);
  --cinnabar: #a63d2f;
  --moss: #3f5c46;
  background: var(--paper);
  color: var(--ink);
}

body.reading-page ::selection { background: rgba(166, 61, 47, 0.22); }
body.reading-page a { color: var(--cinnabar); }
body.reading-page a:hover { text-decoration-color: rgba(166, 61, 47, 0.4); }

/* Header and footer pick up the paper palette. */
body.reading-page .site-header {
  background: rgba(244, 239, 228, 0.84);
  border-bottom-color: var(--rule);
  backdrop-filter: saturate(140%) blur(16px);
}
body.reading-page .brand-mark { background: var(--cinnabar); }
body.reading-page .brand small { color: var(--ink-mute); }
body.reading-page .site-nav { background: rgba(255, 252, 244, 0.56); border-color: var(--rule); }
body.reading-page .site-nav a { color: var(--ink-mute); }
body.reading-page .site-nav a:hover { color: var(--ink); background: rgba(255, 252, 244, 0.92); }
body.reading-page .site-nav a.active { color: var(--paper); background: var(--ink); }
body.reading-page .header-action { color: var(--ink-mute); }
body.reading-page .header-action:hover { color: var(--ink); }
body.reading-page footer {
  color: var(--ink-mute);
  background: var(--paper-deep);
  border-top-color: var(--rule);
}
body.reading-page .footer-nav a { color: var(--ink-soft); }

body.reading-page main.reading-shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px 96px;
}

body.reading-page [hidden] { display: none !important; }

/* ---------------------------------------------------------------- hero */
.reading-hero {
  padding: 84px 0 0;
  border-bottom: 1px solid var(--rule);
}
.reading-kicker,
.aside-kicker,
.coverage-kicker {
  margin: 0;
  color: var(--cinnabar);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.reading-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(240px, 0.45fr);
  gap: 56px;
  align-items: start;
  margin-top: 28px;
}
.reading-hero h1 {
  margin: 0;
  font-family: "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", serif;
  font-size: clamp(46px, 6.8vw, 84px);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.02em;
}
.reading-hero h1 em {
  color: var(--cinnabar);
  font-style: normal;
}
.reading-lead {
  max-width: 680px;
  margin: 30px 0 0;
  color: var(--ink-soft);
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.9;
}
.reading-sync {
  margin: 22px 0 0;
  color: var(--ink-mute);
  font-size: 12px;
  letter-spacing: 0.04em;
}
.reading-aside {
  padding-top: 12px;
  padding-left: 24px;
  border-left: 1px solid var(--rule);
}
.reading-aside p {
  margin: 14px 0 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.85;
}
.reading-aside .aside-kicker { margin: 0; color: var(--ink-mute); letter-spacing: 0.14em; }
.reading-aside .aside-date { color: var(--ink-mute); font-size: 12px; }

.reading-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 64px 0 0;
  border-top: 1px solid var(--rule);
}
.reading-stat {
  padding: 28px 24px 30px;
  border-right: 1px solid var(--rule-soft);
}
.reading-stat:first-child { padding-left: 0; }
.reading-stat:last-child { border-right: 0; }
.reading-stat-value {
  margin: 0;
  font-family: "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", serif;
  font-size: clamp(30px, 3.4vw, 46px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.02em;
}
.reading-stat-label {
  margin: 12px 0 0;
  color: var(--ink-mute);
  font-size: 12px;
}
.reading-stat-label span { color: var(--ink-mute); opacity: 0.8; }

/* ------------------------------------------------------------- sections */
.reading-section {
  padding: 74px 0 78px;
  border-bottom: 1px solid var(--rule);
  scroll-margin-top: 84px;
}
.reading-section-head {
  display: grid;
  grid-template-columns: 48px minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 28px;
  align-items: baseline;
  margin-bottom: 38px;
}
.section-no {
  color: var(--cinnabar);
  font-family: "SF Mono", "Menlo", monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
}
.reading-section h2,
.reading-method h2 {
  margin: 0;
  font-family: "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", serif;
  font-size: clamp(26px, 3.2vw, 40px);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
}
.reading-section-head > p {
  margin: 0;
  color: var(--ink-mute);
  font-size: 13px;
  line-height: 1.85;
}

/* --------------------------------------------------------------- charts */
.time-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(260px, 0.45fr);
  gap: 42px;
  align-items: start;
}
.chart-stack { display: grid; gap: 18px; }
.chart-card {
  padding: 22px 24px 20px;
  background: rgba(255, 252, 244, 0.52);
  border: 1px solid var(--rule-soft);
  border-radius: 2px;
}
.chart-head {
  display: flex;
  justify-content: space-between;
  color: var(--ink-mute);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.bars {
  display: flex;
  align-items: flex-end;
  gap: 18px;
  height: 208px;
  margin-top: 24px;
  padding-top: 18px;
}
.bar {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: stretch;
  height: 100%;
  gap: 7px;
  text-align: center;
}
.bar-value { color: var(--ink-soft); font-size: 10px; white-space: nowrap; }
.bar-fill {
  display: block;
  height: var(--h);
  min-height: 4px;
  background: var(--cinnabar);
  border-radius: 1px 1px 0 0;
}
.bar-year { color: var(--ink-mute); font-size: 10px; }
.chart-empty { margin: 20px 0 0; color: var(--ink-mute); font-size: 12px; }

.spark {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 62px;
  margin-top: 18px;
}
.spark-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: stretch;
  height: 100%;
  gap: 5px;
}
.spark-fill { display: block; height: var(--h); min-height: 2px; background: var(--ink-soft); opacity: 0.55; }
.spark-month { color: var(--ink-mute); font-size: 9px; text-align: center; white-space: nowrap; }

.coverage-card {
  padding: 24px;
  color: var(--paper);
  background: var(--ink);
  border-radius: 2px;
}
.coverage-kicker { color: rgba(244, 239, 228, 0.6); }
.coverage-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin: 18px 0 0;
  border-top: 1px solid rgba(244, 239, 228, 0.18);
  border-left: 1px solid rgba(244, 239, 228, 0.18);
}
.coverage-list > div {
  padding: 17px 14px;
  border-right: 1px solid rgba(244, 239, 228, 0.18);
  border-bottom: 1px solid rgba(244, 239, 228, 0.18);
}
.coverage-list dt { color: rgba(244, 239, 228, 0.58); font-size: 10px; letter-spacing: 0.06em; }
.coverage-list dd {
  margin: 8px 0 0;
  font-family: "Songti SC", "STSong", serif;
  font-size: 26px;
  line-height: 1;
}
.coverage-list dd small { color: rgba(244, 239, 228, 0.58); font-family: inherit; font-size: 11px; }
.coverage-note {
  margin: 18px 0 0;
  color: rgba(244, 239, 228, 0.58);
  font-size: 11px;
  line-height: 1.8;
}

/* ---------------------------------------------------------------- shelf */
.shelf {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
}
.shelf-book {
  display: flex;
  flex-direction: column;
  min-height: 268px;
  padding: 22px;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  transition: background 160ms ease;
}
.shelf-book:hover { background: rgba(255, 252, 244, 0.5); }
.shelf-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.shelf-no { color: var(--ink-mute); font-family: "SF Mono", "Menlo", monospace; font-size: 10px; }
.pill {
  padding: 4px 9px;
  color: var(--ink-mute);
  border: 1px solid var(--rule);
  border-radius: 999px;
  font-size: 9px;
  letter-spacing: 0.06em;
}
.pill-reading { color: var(--cinnabar); border-color: rgba(166, 61, 47, 0.36); }
.pill-finished { color: var(--moss); border-color: rgba(63, 92, 70, 0.36); }
.shelf-title {
  margin: 26px 0 0;
  font-family: "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", serif;
  font-size: 21px;
  font-weight: 600;
  line-height: 1.35;
}
.shelf-author { margin: 8px 0 0; color: var(--ink-mute); font-size: 11px; }
.shelf-progress {
  height: 2px;
  margin-top: auto;
  background: var(--rule-soft);
}
.shelf-progress span { display: block; height: 100%; background: var(--cinnabar); }
.shelf-meta {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  color: var(--ink-mute);
  font-size: 10px;
}
.shelf-counts {
  display: flex;
  gap: 16px;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--rule-soft);
  color: var(--ink-mute);
  font-size: 10px;
}
.shelf-counts b { color: var(--ink-soft); font-weight: 600; }

/* ------------------------------------------------------------- excerpts */
.excerpt-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 16px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.28);
  border: 1px solid var(--rule);
}
.view-switch { display: inline-flex; border: 1px solid var(--rule); }
.view-btn {
  padding: 8px 16px;
  color: var(--ink-soft);
  background: transparent;
  border: 0;
  font: inherit;
  font-size: 11px;
  letter-spacing: 0.04em;
  cursor: pointer;
}
.view-btn + .view-btn { border-left: 1px solid var(--rule); }
.view-btn.is-active { color: var(--paper); background: var(--ink); }
.view-btn:focus-visible { outline: 2px solid var(--cinnabar); outline-offset: -3px; }
.excerpt-selects { display: flex; flex-wrap: wrap; gap: 14px; }
.excerpt-select { display: flex; align-items: center; gap: 8px; }
.excerpt-select > span {
  color: var(--ink-mute);
  font-size: 9.5px;
  font-weight: 650;
  letter-spacing: 0.16em;
}
.excerpt-select select {
  max-width: 190px;
  padding: 7px 28px 7px 10px;
  color: var(--ink-soft);
  background: var(--paper) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%237a7162'/%3E%3C/svg%3E") no-repeat right 10px center;
  border: 1px solid var(--rule);
  border-radius: 0;
  font: inherit;
  font-size: 11px;
  appearance: none;
  cursor: pointer;
}
.excerpt-select select:focus-visible { outline: 2px solid var(--cinnabar); outline-offset: 1px; }
.excerpt-select select:disabled { opacity: 0.45; cursor: default; }
.excerpt-count { margin: 0; color: var(--ink-mute); font-size: 11px; font-variant-numeric: tabular-nums; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.chip {
  padding: 7px 13px;
  color: var(--ink-soft);
  background: transparent;
  border: 1px solid var(--rule);
  border-radius: 999px;
  font: inherit;
  font-size: 11px;
  cursor: pointer;
  transition: color 140ms ease, background 140ms ease, border-color 140ms ease;
}
.chip span { margin-left: 4px; color: var(--ink-mute); font-variant-numeric: tabular-nums; }
.chip:hover { border-color: var(--ink-soft); }
.chip.is-active { color: var(--paper); background: var(--ink); border-color: var(--ink); }
.chip.is-active span { color: rgba(244, 239, 228, 0.62); }
.chip:focus-visible { outline: 2px solid var(--cinnabar); outline-offset: 2px; }

.excerpt-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.excerpt-grid[hidden] { display: none; }
.excerpt-group {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  grid-column: 1 / -1;
  gap: 16px;
  padding: 15px 22px;
  background: #efe8da;
  border-bottom: 1px solid var(--rule-soft);
}
.excerpt-group span {
  color: var(--ink);
  font-family: "Songti SC", "STSong", "Noto Serif SC", serif;
  font-size: 18px;
  font-weight: 600;
}
.excerpt-group small { color: var(--ink-mute); font-size: 10px; letter-spacing: 0.06em; }
.excerpt-card {
  display: flex;
  flex-direction: column;
  padding: 26px 26px 20px;
  background: var(--paper);
}
.excerpt-card[hidden] { display: none; }
.excerpt-quote {
  margin: 0;
  padding-left: 16px;
  color: var(--ink-soft);
  border-left: 2px solid rgba(166, 61, 47, 0.5);
  font-family: "Songti SC", "STSong", "Noto Serif SC", serif;
  font-size: 15px;
  line-height: 1.85;
}
.note-label {
  display: block;
  margin-bottom: 7px;
  color: var(--cinnabar);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", sans-serif;
  font-size: 9px;
  font-weight: 650;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.excerpt-note {
  margin: 20px 0 0;
  color: var(--ink);
  font-size: 15px;
  line-height: 1.9;
}
.excerpt-note .note-label { margin-bottom: 6px; color: var(--cinnabar); }
.excerpt-card .excerpt-foot {
  margin-top: 18px;
  padding: 12px 0 0;
  color: var(--ink-mute);
  background: transparent;
  border: 0;
  border-top: 1px solid var(--rule-soft);
  text-align: left;
  font-size: 10px;
  letter-spacing: 0.02em;
}
.excerpt-pager {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 5px;
  margin-top: 28px;
}
.pager-btn {
  min-width: 34px;
  height: 34px;
  padding: 0 10px;
  color: var(--ink-soft);
  background: transparent;
  border: 1px solid var(--rule);
  font: inherit;
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  cursor: pointer;
}
.pager-btn:hover { border-color: var(--ink-soft); }
.pager-btn.is-active { color: var(--paper); background: var(--ink); border-color: var(--ink); }
.pager-btn:disabled { opacity: 0.35; cursor: default; }
.pager-btn:focus-visible { outline: 2px solid var(--cinnabar); outline-offset: 2px; }
.pager-gap { padding: 0 3px; color: var(--ink-mute); font-size: 11px; }
.excerpt-empty {
  padding: 54px 24px;
  text-align: center;
  border: 1px dashed var(--rule);
}
.excerpt-empty[hidden] { display: none; }
.excerpt-empty h3 { margin: 0; font-family: "Songti SC", "STSong", serif; font-size: 22px; font-weight: 600; }
.excerpt-empty p { margin: 10px 0 0; color: var(--ink-mute); font-size: 13px; }
.excerpt-noscript { margin: 18px 0 0; color: var(--ink-mute); font-size: 12px; }

/* --------------------------------------------------------------- method */
.reading-method {
  margin: 0 calc(50% - 50vw);
  padding: 82px max(24px, calc((100vw - 1132px) / 2));
  color: var(--paper);
  background: #17150f;
}
.reading-method-inner { max-width: 1132px; margin: 0 auto; }
.method-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, 0.55fr);
  gap: 48px;
  align-items: end;
  padding-bottom: 34px;
  border-bottom: 1px solid rgba(244, 239, 228, 0.18);
}
.reading-method .section-no { color: #d07a68; }
.reading-method h2 { color: var(--paper); }
.method-head > p { margin: 0; color: rgba(244, 239, 228, 0.6); font-size: 13px; line-height: 1.9; }
.method-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.72fr);
  gap: 56px;
  margin-top: 40px;
}
.method-steps { margin: 0; padding: 0; list-style: none; }
.method-steps li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 4px 16px;
  padding: 19px 0;
  border-bottom: 1px solid rgba(244, 239, 228, 0.13);
}
.method-steps li > span {
  grid-row: span 2;
  color: #d07a68;
  font-family: "SF Mono", "Menlo", monospace;
  font-size: 10px;
  padding-top: 5px;
}
.method-steps h3 { margin: 0; color: var(--paper); font-size: 16px; font-weight: 600; }
.method-steps p { margin: 6px 0 0; color: rgba(244, 239, 228, 0.56); font-size: 12px; line-height: 1.8; }
.terminal {
  align-self: start;
  overflow: hidden;
  background: #0f0e0a;
  border: 1px solid rgba(244, 239, 228, 0.18);
  border-radius: 3px;
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 13px;
  border-bottom: 1px solid rgba(244, 239, 228, 0.12);
}
.terminal-bar span { width: 7px; height: 7px; background: rgba(244, 239, 228, 0.22); border-radius: 50%; }
.terminal-bar b {
  margin-left: auto;
  color: rgba(244, 239, 228, 0.38);
  font-family: "SF Mono", "Menlo", monospace;
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.14em;
}
.terminal pre { margin: 0; padding: 20px 16px; overflow-x: auto; }
.terminal code {
  color: rgba(244, 239, 228, 0.76);
  font-family: "SF Mono", "Menlo", monospace;
  font-size: 11px;
  line-height: 1.9;
  white-space: pre;
}
.principles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 34px;
  margin-top: 54px;
  padding-top: 32px;
  border-top: 1px solid rgba(244, 239, 228, 0.18);
}
.principles h3 { margin: 0; color: var(--paper); font-size: 13px; font-weight: 600; }
.principles p { margin: 9px 0 0; color: rgba(244, 239, 228, 0.52); font-size: 11px; line-height: 1.85; }

/* --------------------------------------------------------- responsive */
@media (max-width: 980px) {
  .reading-hero-grid { grid-template-columns: 1fr; gap: 30px; }
  .reading-aside { padding: 20px 0 0; border-left: 0; border-top: 1px solid var(--rule); }
  .reading-aside p { max-width: 620px; }
  .reading-section-head { grid-template-columns: 38px minmax(0, 1fr); }
  .reading-section-head > p { grid-column: 2; }
  .time-grid { grid-template-columns: 1fr; gap: 22px; }
  .coverage-card { max-width: none; }
  .coverage-list { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .shelf { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .method-head { grid-template-columns: 1fr; gap: 18px; }
  .method-body { grid-template-columns: 1fr; gap: 28px; }
  .principles { grid-template-columns: 1fr; gap: 18px; }
}

@media (max-width: 720px) {
  body.reading-page main.reading-shell { padding: 0 18px 64px; }
  .reading-hero { padding-top: 52px; }
  .reading-hero h1 { font-size: clamp(32px, 8.6vw, 38px); }
  .reading-lead { margin-top: 22px; font-size: 15px; line-height: 1.85; }
  .reading-stats { grid-template-columns: 1fr 1fr; margin-top: 42px; }
  .reading-stat { padding: 20px 14px 22px; border-bottom: 1px solid var(--rule-soft); }
  .reading-stat:nth-child(odd) { padding-left: 0; }
  .reading-stat:nth-child(even) { border-right: 0; }
  .reading-section { padding: 52px 0 54px; }
  .reading-section-head { grid-template-columns: 1fr; gap: 10px; margin-bottom: 28px; }
  .reading-section-head > p { grid-column: auto; }
  .bars { gap: 8px; height: 170px; }
  .bar-value { font-size: 9px; }
  .coverage-list { grid-template-columns: 1fr 1fr; }
  .shelf { grid-template-columns: 1fr; }
  .shelf-book { min-height: 0; }
  .excerpt-grid { grid-template-columns: 1fr; }
  .excerpt-card { padding: 22px 18px 18px; }
  .excerpt-toolbar { flex-direction: column; align-items: stretch; }
  .view-switch { align-self: flex-start; }
  .excerpt-selects { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
  .excerpt-select { flex-direction: column; align-items: stretch; gap: 4px; }
  .excerpt-select select { width: 100%; max-width: none; }
  .excerpt-count { text-align: right; }
  .excerpt-group { padding: 13px 18px; }
  .excerpt-group span { font-size: 16px; }
  .chips { gap: 6px; margin-bottom: 18px; }
  .chip { padding: 6px 8px; font-size: 10px; }
  .excerpt-pager { gap: 4px; }
  .reading-method { margin: 0 -18px; padding: 54px 18px; }
  .method-head { padding-bottom: 24px; }
  .method-body { margin-top: 26px; }
}

@media (max-width: 360px) {
  .reading-stats { grid-template-columns: 1fr; }
  .reading-stat { padding-left: 0; border-right: 0; }
  .reading-stat:first-child { padding-left: 0; }
}