/* Hallmark · macrostructure: Map / Diagram · genre: editorial · theme: Atelier · tone: historical chart-room · anchor hue: fjord blue · enrichment: none · nav: N9 · footer: Ft2 · audience: general · use: continuous public-history reading · contrast: pass (40–41) · slop: pass (1–58) · honest: pass (46) · chrome: pass (47) · tokens: pass (48) · icons: pass (30) · mobile: pass (34, 49–57) */
/* Hallmark · pre-emit critique: P5 H5 E5 S5 R5 V5 */
@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;600&family=IBM+Plex+Sans:wght@400;700&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-color: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.68;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

button,
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-warm);
}

a[aria-disabled="true"] {
  color: var(--color-muted);
  cursor: not-allowed;
  pointer-events: none;
}

: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-toast);
  padding: var(--space-sm) var(--space-md);
  background-color: 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-color: var(--color-transparent);
  pointer-events: none;
}

.reading-progress__fill {
  width: 100%;
  height: 100%;
  background-color: var(--color-warm);
  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);
}

.wordmark {
  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;
  overflow-wrap: anywhere;
}

.nav-actions {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  gap: var(--space-xs);
}

.nav-control,
.dialog-close {
  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-color: var(--color-transparent);
  color: var(--color-ink);
  cursor: pointer;
  line-height: 1;
  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-control[aria-pressed="true"] {
  background-color: var(--color-ink);
  color: var(--color-paper);
}

.nav-control:active,
.dialog-close:active {
  transform: translateY(var(--space-3xs));
}

.nav-control:disabled,
.dialog-close:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.chapter-dialog {
  position: fixed;
  inset: 0;
  width: min(calc(100% - var(--space-xl)), 42rem);
  max-height: min(84dvh, 42rem);
  margin: auto;
  padding: 0;
  border: var(--rule-thin) solid var(--color-rule-strong);
  border-radius: var(--radius-medium);
  background-color: var(--color-paper-raised);
  color: var(--color-ink);
  box-shadow: var(--shadow-dialog);
}

.chapter-dialog::backdrop {
  background-color: var(--color-backdrop);
}

.chapter-dialog[open] {
  animation: dialog-in var(--dur-short) var(--ease-out) both;
}

@keyframes dialog-in {
  from {
    opacity: 0;
    transform: scale(0.98);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.dialog-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-lg);
  padding: var(--space-lg);
  border-block-end: var(--rule-thin) solid var(--color-rule);
}

.dialog-head h2 {
  min-width: 0;
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-style: normal;
  line-height: 1.15;
  overflow-wrap: anywhere;
}

.dialog-head p {
  margin: var(--space-xs) 0 0;
  color: var(--color-muted);
}

.dialog-close {
  flex: 0 0 auto;
}

.dialog-route {
  margin: 0;
  padding: var(--space-xs) var(--space-lg) var(--space-lg);
  list-style: none;
}

.dialog-route a {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  gap: var(--space-md);
  align-items: baseline;
  min-height: 3.25rem;
  padding-block: var(--space-md);
  border-block-end: var(--rule-thin) solid var(--color-rule);
  color: var(--color-ink);
  text-decoration: none;
}

.dialog-route a[aria-current="page"] {
  color: var(--color-warm);
}

.dialog-route span:first-child {
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: var(--text-sm);
}

.page-shell {
  width: min(100%, var(--page-max));
  margin-inline: auto;
  padding: var(--space-lg) var(--page-gutter) var(--space-3xl);
}

.breadcrumb {
  display: flex;
  gap: var(--space-xs);
  align-items: center;
  margin-block-end: var(--space-2xl);
  color: var(--color-muted);
  font-size: var(--text-sm);
  white-space: nowrap;
}

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

.chapter-hero {
  display: grid;
  gap: var(--space-xl);
  align-items: end;
  padding-block-end: var(--space-2xl);
  border-block-end: var(--rule-strong) solid var(--color-ink);
}

.chapter-hero__copy {
  min-width: 0;
}

.chapter-hero h1 {
  max-width: 12ch;
  margin: 0;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-display);
  font-style: normal;
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1.03;
  overflow-wrap: anywhere;
}

.chapter-hero .lede {
  max-width: 38rem;
  margin: var(--space-lg) 0 0;
  color: var(--color-ink-soft);
  font-family: var(--font-display);
  font-size: var(--text-md);
  line-height: 1.5;
}

.hero-coordinate {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: var(--space-xs);
  padding-block-start: var(--space-md);
  border-block-start: var(--rule-thin) solid var(--color-rule-strong);
  color: var(--color-muted);
  font-family: var(--font-outlier);
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
}

.reading-grid {
  display: grid;
  gap: var(--space-2xl);
  padding-block-start: var(--space-2xl);
}

.route-rail {
  align-self: start;
}

.route-rail > p {
  margin: 0 0 var(--space-md);
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.route-rail ol {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-sm);
  margin: 0;
  padding: 0;
  list-style: none;
}

.route-rail a {
  display: block;
  min-height: 2.75rem;
  padding-block: var(--space-xs);
  border-block-start: var(--rule-thin) solid var(--color-rule);
  color: var(--color-muted);
  font-size: var(--text-sm);
  text-decoration: none;
}

.route-rail a[aria-current="page"] {
  border-color: var(--color-warm);
  color: var(--color-ink);
  font-weight: 700;
}

.route-rail span {
  display: block;
  margin-block-end: var(--space-2xs);
  font-family: var(--font-outlier);
  font-size: var(--text-xs);
  font-variant-numeric: tabular-nums;
}

.prose {
  min-width: 0;
}

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

.prose section:nth-of-type(2n) {
  margin-inline-start: clamp(0rem, 4vw, 4rem);
}

.prose h2 {
  max-width: 24ch;
  margin: 0 0 var(--space-sm);
  font-family: var(--font-display);
  font-size: clamp(var(--text-xl), 3.2vw, var(--text-2xl));
  font-style: normal;
  line-height: 1.16;
  letter-spacing: -0.025em;
  overflow-wrap: anywhere;
}

.prose h3 {
  min-width: 0;
  margin: var(--space-md) 0 0;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-style: normal;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.prose p,
.prose li {
  max-width: var(--measure);
}

.prose p {
  margin: 0;
}

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

.source-mark {
  display: inline-block;
  padding-inline: var(--space-2xs);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  line-height: 1;
  white-space: nowrap;
}

.route-map {
  margin: var(--space-xl) 0 var(--space-3xl);
  padding: var(--space-md) 0 var(--space-lg);
  border-block: var(--rule-thin) solid var(--color-rule-strong);
}

.route-map svg {
  display: block;
  width: 100%;
  height: auto;
  max-height: 36rem;
}

.route-map figcaption {
  max-width: var(--measure);
  margin-block-start: var(--space-md);
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.map-water {
  fill: var(--color-svg-water);
}

.map-land {
  fill: var(--color-svg-land);
  stroke: var(--color-rule-strong);
  stroke-width: var(--rule-thin);
}

.map-route {
  fill: none;
  stroke: var(--color-accent);
  stroke-width: var(--rule-strong);
  stroke-linecap: round;
  stroke-dasharray: 7 7;
}

.map-route--warm {
  stroke: var(--color-warm);
}

.map-node {
  fill: var(--color-paper-raised);
  stroke: var(--color-ink);
  stroke-width: var(--rule-strong);
}

.map-label {
  fill: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
}

.map-note {
  fill: var(--color-muted);
  font-family: var(--font-body);
  font-size: 12px;
}

.evidence-band,
.ship-register,
.source-group {
  margin-block: var(--space-xl);
  border-block: var(--rule-thin) solid var(--color-rule-strong);
}

.evidence-band > div,
.ship-register > div {
  display: grid;
  gap: var(--space-sm);
  padding-block: var(--space-lg);
  border-block-end: var(--rule-thin) solid var(--color-rule);
}

.evidence-band > div:last-child,
.ship-register > div:last-child {
  border-block-end: 0;
}

.evidence-band dt,
.ship-register dt {
  color: var(--color-warm);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
}

.evidence-band dd,
.ship-register dd {
  margin: 0;
}

.chronology {
  display: grid;
  gap: 0;
  margin: var(--space-xl) 0;
  padding: 0;
  list-style: none;
  border-block: var(--rule-thin) solid var(--color-rule-strong);
}

.chronology li {
  display: grid;
  grid-template-columns: 5.5rem minmax(0, 1fr);
  gap: var(--space-lg);
  padding-block: var(--space-md);
  border-block-end: var(--rule-thin) solid var(--color-rule);
}

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

.chronology time {
  color: var(--color-warm);
  font-family: var(--font-body);
  font-variant-numeric: tabular-nums;
}

blockquote {
  max-width: 54rem;
  margin: var(--space-2xl) 0;
  padding: var(--space-lg) 0 var(--space-lg) clamp(var(--space-lg), 5vw, var(--space-2xl));
  border-block: var(--rule-thin) solid var(--color-rule-strong);
  color: var(--color-ink-soft);
  font-family: var(--font-display);
  font-size: var(--text-md);
  line-height: 1.55;
}

blockquote p {
  margin: 0;
}

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

.chapter-nav a {
  display: grid;
  gap: var(--space-xs);
  min-height: 4.5rem;
  padding-block: var(--space-md);
  border-block-end: var(--rule-thin) solid var(--color-rule);
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-md);
  text-decoration: none;
}

.chapter-nav small {
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.source-intro {
  max-width: var(--measure);
  margin-block-end: var(--space-2xl);
}

.source-group {
  padding-block: var(--space-lg);
}

.source-group h2 {
  margin: 0 0 var(--space-lg);
}

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

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

.source-list li:last-child {
  border-block-end: 0;
}

.source-list a {
  width: fit-content;
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 700;
}

.source-meta {
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: var(--text-xs);
}

.site-footer {
  width: min(100%, var(--page-max));
  margin-inline: auto;
  padding: var(--space-lg) var(--page-gutter) var(--space-2xl);
  border-block-start: var(--rule-thin) solid var(--color-rule-strong);
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.site-footer p {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-xs) var(--space-md);
  margin: 0;
}

.site-footer a {
  line-height: 1;
  white-space: nowrap;
}

@media (max-width: 32rem) {
  .nav-edge {
    flex-wrap: wrap;
    gap: var(--space-sm);
  }

  .wordmark,
  .nav-actions {
    width: 100%;
  }
}

@media (hover: hover) and (pointer: fine) {
  .nav-control:hover,
  .dialog-close:hover {
    background-color: var(--color-ink);
    color: var(--color-paper);
  }

  .dialog-route a:hover,
  .route-rail a:hover,
  .chapter-nav a:hover {
    color: var(--color-warm);
  }
}

@media (min-width: 40rem) {
  .chapter-hero {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-coordinate {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .route-rail ol {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .evidence-band > div,
  .ship-register > div {
    grid-template-columns: minmax(7rem, 1fr) minmax(0, 3fr);
  }

  .chapter-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 60rem) {
  .page-shell {
    padding-block-start: var(--space-xl);
  }

  .reading-grid {
    grid-template-columns: minmax(10rem, 0.85fr) minmax(0, 4fr);
    gap: clamp(var(--space-xl), 5vw, var(--space-3xl));
  }

  .route-rail {
    position: sticky;
    inset-block-start: var(--space-lg);
  }

  .route-rail ol {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 90rem) {
  .chapter-hero h1 {
    max-width: 14ch;
  }
}

@media (pointer: coarse) {
  .nav-control,
  .dialog-close,
  .dialog-route a,
  .route-rail a,
  .chapter-nav a {
    min-height: 2.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: var(--dur-micro) !important;
    animation-iteration-count: 1 !important;
    transition-duration: var(--dur-micro) !important;
  }

  .chapter-dialog[open] {
    animation-name: none;
  }
}

@media print {
  .reading-progress,
  .nav-actions,
  .chapter-dialog,
  .route-rail,
  .chapter-nav {
    display: none;
  }

  body {
    background-color: var(--color-paper-raised);
    color: var(--color-ink);
  }

  .reading-grid {
    display: block;
  }

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