/* Hallmark · macrostructure: Split Studio · genre: editorial · theme: Editorial · tone: philosophical editorial · anchor hue: cinnabar · enrichment: none · H2 knobs: ratio=7/5, right=proof-column, divider=negative-space · nav: N6(issue-above, wordmark=3xl, rule=double) · footer: Ft6(signoff=roman, postscript=yes, width=60ch) · audience: general · use: continuous comparative reading · contrast: pass (40–41) · slop: pass (42–45) · honest: pass (46) · chrome: pass (47) · tokens: pass (48) · responsive: pass (49) · icons: pass (30) · mobile: pass (34, 49, 50–57) */
/* Hallmark · pre-emit critique: P5 H5 E5 S5 R5 V5 */
@import url("tokens.css");
@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;700&family=Noto+Serif+SC:wght@400;700;900&display=swap");

*, *::before, *::after { box-sizing: border-box; }
html { color-scheme: light; overflow-x: clip; scroll-behavior: smooth; }
html[data-theme="dark"] { color-scheme: dark; }
body {
  margin: 0;
  overflow-x: clip;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.72;
  text-rendering: optimizeLegibility;
}
a { color: var(--color-accent); text-underline-offset: 0.22em; text-decoration-thickness: var(--rule-hair); }
a:hover { text-decoration-thickness: var(--rule-strong); }
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}
button { font: inherit; }
.skip-link {
  position: fixed;
  inset-block-start: var(--space-sm);
  inset-inline-start: var(--space-sm);
  z-index: var(--z-sticky);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-ink);
  color: var(--color-paper);
  transform: translateY(-180%);
}
.skip-link:focus { transform: translateY(0); }

.nav-mast {
  display: grid;
  gap: var(--space-xs);
  padding: var(--space-lg) var(--page-gutter) 0;
  text-align: center;
  max-width: var(--content-max);
  margin-inline: auto;
}
.mast-line { margin: 0; color: var(--color-muted); font-size: var(--text-xs); letter-spacing: 0.1em; }
.mast-name {
  margin: 0;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 4rem);
  font-style: normal;
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.045em;
  overflow-wrap: anywhere;
  min-width: 0;
}
.mast-nav { display: none; }
.mast-nav[aria-expanded="true"] { display: block; }
.mast-nav ul {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  list-style: none;
  padding: var(--space-sm) 0;
  margin: 0;
}
.mast-nav a { display: inline-flex; min-height: 44px; align-items: center; color: var(--color-ink); white-space: nowrap; text-decoration: none; }
.mast-nav a[aria-current="page"] { color: var(--color-accent); text-decoration: underline; text-decoration-thickness: var(--rule-strong); }
.mast-actions { display: flex; justify-content: center; gap: var(--space-xs); flex-wrap: wrap; }
.nav-menu-btn, .theme-btn {
  min-width: 44px;
  min-height: 44px;
  padding: var(--space-xs) var(--space-md);
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: var(--radius-sm);
  background: var(--color-paper);
  color: var(--color-ink);
  cursor: pointer;
  white-space: nowrap;
  transition: background-color var(--dur-short) var(--ease-out), color var(--dur-short) var(--ease-out), transform var(--dur-micro) var(--ease-out);
}
.nav-menu-btn:hover, .theme-btn:hover { background: var(--color-ink); color: var(--color-paper); }
.nav-menu-btn:active, .theme-btn:active { transform: translateY(1px); }
.nav-menu-btn:disabled, .theme-btn:disabled { background: var(--color-paper-deep); color: var(--color-muted); cursor: not-allowed; opacity: 0.55; }
.nav-menu-btn[data-state="loading"], .theme-btn[data-state="loading"] { cursor: wait; }
.nav-menu-btn[data-state="error"], .theme-btn[data-state="error"] { text-decoration: underline; text-decoration-style: wavy; }
.nav-menu-btn[data-state="success"], .theme-btn[data-state="success"] { border-style: double; }
.mast-rule { width: 100%; height: 5px; margin: var(--space-sm) 0 0; border: 0; border-block: var(--rule-hair) solid var(--color-rule); }

.page-shell { max-width: var(--content-max); margin-inline: auto; padding-inline: var(--page-gutter); }
.breadcrumb { display: flex; gap: var(--space-xs); align-items: center; padding-block: var(--space-lg); color: var(--color-muted); font-size: var(--text-sm); overflow-x: auto; }
.breadcrumb a { white-space: nowrap; }
.hero-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-xl);
  align-items: end;
  padding-block: var(--space-xl) var(--space-3xl);
}
.hero-copy h1 {
  max-width: 10ch;
  margin: 0 0 var(--space-lg);
  font-family: var(--font-display);
  font-size: var(--text-display);
  font-style: normal;
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 1.05;
  overflow-wrap: anywhere;
  min-width: 0;
}
.hero-copy .lede { max-width: 38ch; margin: 0; font-family: var(--font-display); font-size: var(--text-md); color: var(--color-ink-soft); }
.hero-proof { border-block: var(--rule-hair) solid var(--color-rule); padding-block: var(--space-lg); }
.hero-proof p { margin: 0; }
.hero-proof strong { display: block; margin-block-end: var(--space-sm); color: var(--color-accent); font-family: var(--font-display); font-size: var(--text-lg); }

.prose-section { padding-block: var(--space-xl) var(--space-3xl); }
.head-hang { padding-block: var(--space-xl) var(--space-lg); }
.head-hang h2 {
  max-width: 18ch;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 3.25rem);
  font-style: normal;
  font-weight: 900;
  letter-spacing: -0.035em;
  line-height: 1.16;
  overflow-wrap: anywhere;
  min-width: 0;
}
.prose { max-width: var(--prose-max); }
.prose p { margin: 0 0 var(--space-lg); }
.prose p:first-child::first-letter { font-family: var(--font-display); font-size: 3.1em; line-height: 0.82; float: inline-start; margin-inline-end: var(--space-xs); color: var(--color-accent); }
dfn { font-style: normal; font-weight: 700; text-decoration: underline; text-decoration-color: var(--color-accent); text-underline-offset: 0.18em; }

.diptych {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-xl);
  margin-block: var(--space-xl) var(--space-2xl);
}
.voice {
  padding-block: var(--space-lg);
  border-block-start: var(--rule-strong) solid var(--color-ink);
}
.voice + .voice { border-block-start-color: var(--color-accent); }
.voice h3 { margin: 0 0 var(--space-md); font-family: var(--font-display); font-size: var(--text-xl); font-style: normal; line-height: 1.2; }
.voice p { margin: 0 0 var(--space-md); }
.voice .voice-key { color: var(--color-muted); font-size: var(--text-sm); }

.comparison-wrap { margin-block: var(--space-xl) var(--space-2xl); overflow: auto; }
.comparison-table { width: 100%; border-collapse: collapse; min-width: 42rem; }
.comparison-table th, .comparison-table td { padding: var(--space-md); border-block-end: var(--rule-hair) solid var(--color-rule); text-align: start; vertical-align: top; }
.comparison-table th { font-family: var(--font-display); font-size: var(--text-md); }
.comparison-table tbody th { font-family: var(--font-body); font-size: var(--text-sm); color: var(--color-muted); }

.axis-figure { margin: var(--space-2xl) 0; padding: var(--space-xl) 0; border-block: var(--rule-hair) solid var(--color-rule); }
.axis-figure figcaption { max-width: var(--prose-max); margin-block-end: var(--space-lg); color: var(--color-muted); }
.axis-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--space-md); }
.axis-side { padding: var(--space-lg); background: var(--color-paper-raised); }
.axis-side h3 { margin: 0 0 var(--space-sm); font-family: var(--font-display); font-size: var(--text-lg); font-style: normal; }
.axis-side ol { margin: 0; padding-inline-start: var(--space-lg); }
.axis-side li + li { margin-block-start: var(--space-sm); }

.source-note { margin-block: var(--space-2xl); padding: var(--space-lg); border-block: var(--rule-hair) solid var(--color-rule); background: var(--color-paper-raised); }
.source-note p { margin: 0; }
.chapter-nav { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--space-sm); margin-block: var(--space-2xl) var(--space-3xl); }
.chapter-nav a { display: flex; min-height: 52px; align-items: center; justify-content: space-between; gap: var(--space-md); padding: var(--space-md); border-block: var(--rule-hair) solid var(--color-rule); color: var(--color-ink); text-decoration: none; white-space: nowrap; }
.chapter-nav a:hover { color: var(--color-accent); }

.source-list { display: grid; gap: var(--space-xl); list-style: none; padding: 0; margin: var(--space-xl) 0; }
.source-item { padding-block-end: var(--space-xl); border-block-end: var(--rule-hair) solid var(--color-rule); }
.source-item h2 { margin: 0 0 var(--space-sm); font-family: var(--font-display); font-size: var(--text-lg); font-style: normal; }
.source-item p { max-width: var(--prose-max); margin: 0 0 var(--space-sm); }
.source-item a { overflow-wrap: anywhere; }
.related-list { display: grid; gap: var(--space-md); padding: 0; list-style: none; }
.related-list a { display: inline-flex; min-height: 44px; align-items: center; }

.foot-letter { max-width: var(--content-max); margin-inline: auto; padding: var(--space-2xl) var(--page-gutter) var(--space-3xl); border-block-start: var(--rule-hair) solid var(--color-rule); }
.foot-letter__close { margin: 0; font-family: var(--font-display); font-size: var(--text-lg); font-style: normal; }
.foot-letter__sign { font-weight: 900; }
.foot-letter__ps { margin: var(--space-md) 0 0; color: var(--color-muted); font-size: var(--text-sm); }
.foot-letter a { white-space: nowrap; }

@media (min-width: 40rem) {
  .mast-actions { position: absolute; inset-block-start: var(--space-lg); inset-inline-end: var(--page-gutter); }
  .nav-menu-btn { display: none; }
  .mast-nav { display: block; }
  .mast-nav ul { flex-direction: row; justify-content: center; gap: var(--space-lg); padding: 0; }
  .hero-split { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: var(--space-2xl); }
  .diptych { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: var(--space-2xl); }
  .diptych.reverse { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
  .axis-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .chapter-nav { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
}

@media (min-width: 60rem) {
  .prose-section:nth-of-type(even) .prose { margin-inline-start: auto; }
  .prose-section:nth-of-type(even) .head-hang h2 { margin-inline-start: 38%; }
}

@media (pointer: coarse) {
  a, button { min-height: 44px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 150ms !important; animation-iteration-count: 1 !important; transition-duration: 150ms !important; }
}

@media print {
  .nav-mast, .breadcrumb, .chapter-nav, .theme-btn, .nav-menu-btn { display: none !important; }
  body { background: var(--color-paper); color: var(--color-ink); }
  a { color: var(--color-ink); }
}