/* Hallmark · macrostructure: Marquee Hero · genre: editorial · theme: Atelier · tone: philosophical editorial · anchor hue: oxblood · enrichment: none · nav: N9 · footer: Ft1 · audience: general · use: continuous public learning · contrast: pass (40–41) · honest: pass (46) · chrome: pass (47) · tokens: pass (48) · responsive: pass (34, 49–57) · slop: pass (1–58) */
/* Hallmark · pre-emit critique: P5 H5 E5 S5 R5 V5 */
@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;700&family=Noto+Sans+SC:wght@400;700&family=Noto+Serif+SC:wght@400;700;900&family=Source+Serif+4:opsz,wght@8..60,400;8..60,700&display=swap");
@import url("tokens.css");

html,
body {
  overflow-x: clip;
}

html {
  scroll-behavior: smooth;
  background: var(--color-paper);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 400;
  line-height: 1.78;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--color-selection);
}

button,
summary,
a {
  font: inherit;
}

a {
  color: var(--color-accent);
  text-decoration-thickness: var(--rule-thin);
  text-underline-offset: var(--space-2xs);
}

a:hover {
  color: var(--color-accent-hover);
}

a:active {
  color: var(--color-ink);
}

:focus-visible {
  outline: var(--rule-strong) solid var(--color-focus);
  outline-offset: var(--space-2xs);
}

.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%);
  text-decoration: none;
}

.skip-link:focus {
  transform: translateY(0);
}

.reading-progress {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: var(--z-sticky);
  height: var(--space-3xs);
  background: var(--color-transparent);
  pointer-events: none;
}

.reading-progress__fill {
  width: 100%;
  height: 100%;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left center;
}

.nav-edge {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  width: min(100%, var(--page-max));
  margin-inline: auto;
  padding: var(--space-lg) var(--page-gutter) var(--space-md);
  border-block-end: var(--rule-thin) solid var(--color-rule);
}

.site-home {
  min-width: 0;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  text-decoration: none;
  white-space: nowrap;
}

.chapter-menu {
  position: relative;
  flex: 0 0 auto;
}

.chapter-menu > summary,
.theme-toggle {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  padding: var(--space-xs) var(--space-md);
  border: var(--rule-thin) solid var(--color-rule-strong);
  border-radius: var(--radius-small);
  background: var(--color-transparent);
  color: var(--color-ink);
  cursor: pointer;
  line-height: 1;
  list-style: none;
  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);
}

.chapter-menu > summary::-webkit-details-marker {
  display: none;
}

.menu-label-short {
  display: none;
}

.chapter-menu > summary::after {
  content: "＋";
  margin-inline-start: var(--space-xs);
}

.chapter-menu[open] > summary::after {
  content: "−";
}

.chapter-menu > summary:hover,
.theme-toggle:hover {
  background: var(--color-ink);
  color: var(--color-paper);
}

.chapter-menu > summary:active,
.theme-toggle:active {
  transform: translateY(var(--rule-thin));
}

.theme-toggle:disabled,
.chapter-menu > summary[aria-disabled="true"],
a[aria-disabled="true"] {
  color: var(--color-muted);
  cursor: not-allowed;
  opacity: 0.55;
  pointer-events: none;
}

.menu-sheet {
  position: absolute;
  inset-block-start: calc(100% + var(--space-xs));
  inset-inline-end: 0;
  z-index: var(--z-dropdown);
  display: grid;
  width: min(22rem, 80vi);
  gap: var(--space-xs);
  padding: var(--space-lg);
  border: var(--rule-thin) solid var(--color-rule-strong);
  border-radius: var(--radius-medium);
  background: var(--color-paper-raised);
  box-shadow: 0 var(--space-xs) var(--space-xl) var(--color-shadow);
}

.menu-sheet a,
.menu-sheet button {
  white-space: nowrap;
}

.menu-sheet a {
  display: block;
  min-height: 2.75rem;
  padding: var(--space-xs) 0;
  border-block-end: var(--rule-thin) solid var(--color-rule);
  color: var(--color-ink);
  text-decoration: none;
}

.menu-sheet a[aria-current="page"] {
  color: var(--color-accent);
  font-weight: 700;
}

.theme-toggle {
  width: 100%;
  margin-block-start: var(--space-sm);
}

.breadcrumb {
  display: flex;
  width: min(100%, var(--page-max));
  margin-inline: auto;
  padding: var(--space-sm) var(--page-gutter) 0;
  color: var(--color-muted);
  font-size: var(--text-sm);
  gap: var(--space-xs);
  white-space: nowrap;
}

.breadcrumb a {
  color: var(--color-muted);
}

.hero-marquee {
  position: relative;
  display: grid;
  min-height: 62svh;
  align-content: end;
  width: min(100%, var(--page-max));
  margin-inline: auto;
  padding: var(--space-2xl) var(--page-gutter) var(--space-3xl);
  border-block-end: var(--rule-strong) solid var(--color-ink);
  isolation: isolate;
}

.hero-marquee::before,
.hero-marquee::after {
  position: absolute;
  z-index: -1;
  border: var(--rule-thin) solid var(--color-rule);
  border-radius: 50%;
  content: "";
  pointer-events: none;
}

.hero-marquee::before {
  inset-block-start: 14%;
  inset-inline-end: -8%;
  width: clamp(12rem, 32vw, 34rem);
  aspect-ratio: 1;
}

.hero-marquee::after {
  inset-block-start: 25%;
  inset-inline-end: 2%;
  width: clamp(7rem, 19vw, 20rem);
  aspect-ratio: 1;
  border-color: var(--color-rule-strong);
}

.page--chapter .hero-marquee,
.page--reference .hero-marquee {
  min-height: 45svh;
}

.hero-marquee h1 {
  max-width: 10ch;
  min-width: 0;
  margin: 0;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-display);
  font-style: normal;
  font-weight: 900;
  letter-spacing: -0.055em;
  line-height: 1.02;
  overflow-wrap: anywhere;
}

.page--chapter .hero-marquee h1,
.page--reference .hero-marquee h1 {
  font-size: var(--text-display-s);
}

.essay-shell {
  display: grid;
  width: min(100%, var(--page-max));
  margin-inline: auto;
  padding: var(--space-3xl) var(--page-gutter) var(--space-4xl);
  gap: var(--space-2xl);
}

.margin-note {
  align-self: start;
  padding-block-start: var(--space-sm);
  border-block-start: var(--rule-strong) solid var(--color-accent);
  color: var(--color-muted);
  font-family: var(--font-display);
  font-size: var(--text-md);
  line-height: 1.55;
}

.prose {
  min-width: 0;
  max-width: var(--measure);
}

.prose section {
  display: grid;
  gap: var(--space-md);
  margin-block-end: var(--space-3xl);
}

.prose section:nth-of-type(2) {
  margin-inline-start: clamp(0rem, 5vw, var(--space-2xl));
}

.prose h2,
.prose h3 {
  min-width: 0;
  margin: 0;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-style: normal;
  overflow-wrap: anywhere;
}

.prose h2 {
  max-width: 18ch;
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.2;
}

.prose h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  line-height: 1.3;
}

.prose p {
  max-width: 66ch;
  margin: 0;
}

.prose strong {
  color: var(--color-ink);
}

.prose dfn {
  color: var(--color-accent);
  font-style: normal;
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: var(--color-rule-strong);
  text-underline-offset: var(--space-2xs);
}

.opening {
  font-family: var(--font-display);
  font-size: var(--text-md);
  line-height: 1.72;
}

.head-inline {
  color: var(--color-accent);
  font-variant-caps: all-small-caps;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.argument-line {
  display: grid;
  gap: 0;
  margin-block: var(--space-xl);
  border-block: var(--rule-thin) solid var(--color-rule-strong);
}

.argument-line > div {
  display: grid;
  gap: var(--space-xs);
  padding: var(--space-lg) 0;
  border-block-end: var(--rule-thin) solid var(--color-rule);
}

.argument-line > div:last-child {
  border-block-end: 0;
}

.argument-line dt {
  color: var(--color-accent);
  font-family: var(--font-display);
  font-weight: 700;
}

.argument-line dd {
  margin: 0;
}

.loop-figure {
  margin: var(--space-xl) 0;
  padding: var(--space-xl) 0;
  border-block: var(--rule-strong) solid var(--color-ink);
}

.loop-figure ol {
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: loop;
}

.loop-figure li {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-md);
  padding: var(--space-lg) 0;
  border-block-end: var(--rule-thin) solid var(--color-rule);
  counter-increment: loop;
}

.loop-figure li::before {
  content: counter(loop, decimal-leading-zero);
  color: var(--color-accent);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
}

.loop-figure li:last-child {
  border-block-end: 0;
}

.loop-figure figcaption,
.evidence-table caption {
  padding-block-start: var(--space-md);
  color: var(--color-muted);
  font-size: var(--text-sm);
  text-align: left;
}

.table-wrap {
  overflow-x: auto;
  margin-block: var(--space-xl);
}

.evidence-table {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

.evidence-table th,
.evidence-table td {
  padding: var(--space-md) var(--space-sm);
  border-block-end: var(--rule-thin) solid var(--color-rule);
  text-align: left;
  vertical-align: top;
}

.evidence-table th {
  color: var(--color-ink);
  font-family: var(--font-display);
  font-weight: 700;
}

.source-list {
  display: grid;
  gap: var(--space-xl);
  margin: 0;
  padding: 0;
  list-style: none;
}

.source-list li {
  display: grid;
  gap: var(--space-xs);
  padding-block-end: var(--space-xl);
  border-block-end: var(--rule-thin) solid var(--color-rule);
}

.source-list cite {
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-style: normal;
  font-weight: 700;
  line-height: 1.45;
}

.chapter-nav {
  display: grid;
  gap: var(--space-sm);
  margin-block-start: var(--space-2xl);
  padding-block-start: var(--space-xl);
  border-block-start: var(--rule-strong) solid var(--color-ink);
}

.chapter-nav a {
  display: inline-block;
  width: fit-content;
  min-height: 2.75rem;
  padding-block: var(--space-xs);
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 700;
  text-decoration-color: var(--color-accent);
  white-space: nowrap;
}

.foot-mast {
  display: grid;
  width: min(100%, var(--page-max));
  margin-inline: auto;
  padding: var(--space-2xl) var(--page-gutter);
  border-block-start: var(--rule-thin) solid var(--color-rule-strong);
  gap: var(--space-md);
}

.foot-mast .wordmark {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.025em;
}

.foot-mast p {
  margin: 0;
  color: var(--color-muted);
}

.foot-mast nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-lg);
}

.foot-mast a {
  white-space: nowrap;
}

@media (min-width: 40rem) {
  .argument-line > div {
    grid-template-columns: minmax(8rem, 0.8fr) minmax(0, 2fr);
    gap: var(--space-xl);
  }

  .foot-mast {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    align-items: end;
  }

  .foot-mast nav {
    justify-content: flex-end;
  }
}

@media (min-width: 60rem) {
  .essay-shell {
    grid-template-columns: minmax(10rem, 0.7fr) minmax(0, 2.3fr);
  }

  .margin-note {
    position: sticky;
    inset-block-start: var(--space-xl);
  }

  .loop-figure ol {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .loop-figure li {
    grid-template-columns: 1fr;
    border-block-end: 0;
    border-inline-end: var(--rule-thin) solid var(--color-rule);
    padding: var(--space-lg);
  }

  .loop-figure li:last-child {
    border-inline-end: 0;
  }
}

@media (max-width: 39.99rem) {
  .nav-edge {
    gap: var(--space-sm);
  }

  .menu-label-long {
    display: none;
  }

  .menu-label-short {
    display: inline;
  }

  .hero-marquee {
    min-height: 52svh;
  }

  .hero-marquee h1 {
    font-size: clamp(2.75rem, 14vw, 3.5rem);
  }

  .page--chapter .hero-marquee,
  .page--reference .hero-marquee {
    min-height: 34svh;
  }

  .breadcrumb {
    overflow-x: auto;
  }

  .essay-shell {
    padding-block: var(--space-2xl) var(--space-3xl);
  }

  .prose section:nth-of-type(2) {
    margin-inline-start: 0;
  }

  .prose h2 {
    font-size: var(--text-xl);
  }

  .table-wrap {
    overflow: visible;
  }

  .evidence-table,
  .evidence-table tbody,
  .evidence-table tr,
  .evidence-table th,
  .evidence-table td {
    display: block;
    width: 100%;
  }

  .evidence-table caption {
    display: block;
    width: 100%;
  }

  .evidence-table thead {
    position: absolute;
    width: var(--rule-thin);
    height: var(--rule-thin);
    overflow: clip;
    clip-path: inset(50%);
  }

  .evidence-table tr {
    padding-block: var(--space-md);
    border-block-end: var(--rule-strong) solid var(--color-rule-strong);
  }

  .evidence-table td {
    padding: var(--space-xs) 0;
    border: 0;
  }

  .evidence-table td::before {
    display: block;
    margin-block-end: var(--space-2xs);
    color: var(--color-muted);
    content: attr(data-label);
    font-weight: 700;
  }

  .chapter-nav a {
    font-size: var(--text-base);
  }
}

@media (pointer: coarse) {
  .chapter-menu > summary,
  .theme-toggle,
  .menu-sheet a,
  .chapter-nav a {
    min-height: 2.75rem;
  }
}

@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 {
  .skip-link,
  .reading-progress,
  .chapter-menu,
  .breadcrumb,
  .chapter-nav {
    display: none;
  }

  .hero-marquee,
  .essay-shell,
  .foot-mast {
    width: 100%;
    padding-inline: 0;
  }

  .hero-marquee {
    min-height: auto;
    padding-block: var(--space-xl);
  }

  .margin-note {
    position: static;
  }
}