/* Hallmark · pre-emit critique: P5 H5 E5 S5 R5 V4
 * genre: editorial · macrostructure: Long Document · theme: Garden · enrichment: none · nav: N9 · footer: Ft6
 * contrast: pass (40–41) · slop: pass (42–45) · honest: pass (46) · chrome: pass (47) · tokens: pass (48)
 * responsive: pass (34, 49, 50–57) · icons: pass (30)
 */
@import url("tokens.css");

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  overflow-x: clip;
  scroll-behavior: smooth;
  color-scheme: light 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: 1.75;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--color-accent-strong);
  text-decoration-color: var(--color-accent);
  text-decoration-thickness: var(--rule-thin);
  text-underline-offset: 0.2em;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

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

a[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.skip-link {
  position: fixed;
  inset-block-start: var(--space-sm);
  inset-inline-start: var(--space-sm);
  z-index: var(--z-sticky);
  padding: var(--space-xs) var(--space-md);
  background: var(--color-ink);
  color: var(--color-paper);
  transform: translateY(-180%);
  transition: transform var(--dur-short) var(--ease-out);
}

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

.reading-progress {
  position: fixed;
  inset: 0 auto auto 0;
  z-index: var(--z-sticky);
  width: 100%;
  height: var(--space-2xs);
  background: var(--color-rule);
  transform: scaleX(0);
  transform-origin: left center;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  min-height: 4.5rem;
  padding: var(--space-md) var(--page-gutter);
  border-block-end: var(--rule-thin) solid var(--color-rule);
}

.site-header a,
.site-header button {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  line-height: 1;
  white-space: nowrap;
}

.site-home {
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 700;
  text-decoration: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.home-link,
.theme-toggle {
  border: 0;
  border-block-end: var(--rule-thin) solid var(--color-rule);
  background: transparent;
  color: var(--color-ink-soft);
  font: inherit;
  font-size: var(--text-sm);
  text-decoration: none;
  cursor: pointer;
  transition: color var(--dur-micro) var(--ease-out), border-color var(--dur-micro) var(--ease-out), transform var(--dur-micro) var(--ease-out);
}

.home-link:active,
.theme-toggle:active {
  transform: translateY(1px);
}

.home-link[aria-disabled="true"],
.theme-toggle:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.shell {
  width: min(100%, 78rem);
  margin-inline: auto;
  padding-inline: var(--page-gutter);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  overflow-x: auto;
  padding-block: var(--space-lg);
  color: var(--color-muted);
  font-size: var(--text-sm);
  white-space: nowrap;
  scrollbar-width: thin;
}

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

.article-header {
  display: grid;
  gap: var(--space-xl);
  padding-block: var(--space-xl) var(--space-2xl);
  border-block-end: var(--rule-heavy) solid var(--color-ink);
}

.article-header 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: 700;
  letter-spacing: -0.035em;
  line-height: 1.08;
  overflow-wrap: anywhere;
}

.article-header .dek {
  max-width: 38rem;
  margin: 0;
  color: var(--color-ink-soft);
  font-family: var(--font-outlier);
  font-size: var(--text-md);
  line-height: 1.75;
}

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

.chapter-nav {
  align-self: start;
  padding-block-start: var(--space-xs);
}

.chapter-nav strong {
  display: block;
  margin-block-end: var(--space-sm);
  font-family: var(--font-display);
  font-size: var(--text-md);
}

.chapter-nav ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.chapter-nav li {
  border-block-start: var(--rule-thin) solid var(--color-rule);
}

.chapter-nav a {
  display: block;
  min-height: 2.75rem;
  padding-block: var(--space-sm);
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
  text-decoration: none;
  white-space: nowrap;
}

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

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

.prose > :first-child {
  margin-block-start: 0;
}

.prose p,
.prose li {
  color: var(--color-ink-soft);
}

.prose p {
  margin-block: 0 var(--space-lg);
}

.prose .lede {
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  line-height: 1.65;
}

.prose h2 {
  margin: var(--space-2xl) 0 var(--space-lg);
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-style: normal;
  line-height: 1.3;
}

.prose h3 {
  margin: var(--space-xl) 0 var(--space-md);
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-style: normal;
  line-height: 1.4;
}

.prose dfn {
  color: var(--color-ink);
  font-style: normal;
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: var(--color-accent);
  text-decoration-thickness: var(--rule-heavy);
  text-underline-offset: 0.18em;
}

.margin-note,
.boundary-note {
  margin-block: var(--space-xl);
  padding: var(--space-lg);
  border-block: var(--rule-thin) solid var(--color-rule);
  background: var(--color-paper-soft);
  color: var(--color-ink);
}

.margin-note strong,
.boundary-note strong {
  display: block;
  margin-block-end: var(--space-xs);
  font-family: var(--font-display);
  font-size: var(--text-md);
}

.boundary-note {
  border-color: var(--color-caution);
}

.field-map {
  display: grid;
  gap: var(--space-md);
  margin-block: var(--space-xl);
  padding-block: var(--space-lg);
  border-block: var(--rule-thin) solid var(--color-rule);
}

.field-map section {
  min-width: 0;
}

.field-map section + section {
  padding-block-start: var(--space-lg);
  border-block-start: var(--rule-thin) solid var(--color-rule);
}

.field-map h3 {
  margin-block-start: 0;
}

.field-map ul,
.check-list,
.source-list {
  padding-inline-start: var(--space-lg);
}

.clinical-sequence {
  margin-block: var(--space-xl);
  padding: 0;
  list-style: none;
  counter-reset: sequence;
}

.clinical-sequence li {
  position: relative;
  padding: var(--space-lg) 0 var(--space-lg) var(--space-2xl);
  border-block-start: var(--rule-thin) solid var(--color-rule);
  counter-increment: sequence;
}

.clinical-sequence li::before {
  content: counter(sequence, decimal-leading-zero);
  position: absolute;
  inset-block-start: var(--space-lg);
  inset-inline-start: 0;
  color: var(--color-accent-strong);
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 700;
}

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

.triage-table-wrap {
  margin-block: var(--space-xl);
  border-block: var(--rule-thin) solid var(--color-rule);
}

.triage-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

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

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

.triage-table td {
  color: var(--color-ink-soft);
}

.danger-text {
  color: var(--color-danger);
  font-weight: 700;
}

.chapter-pager {
  display: grid;
  gap: var(--space-md);
  max-width: var(--measure);
  margin-block: var(--space-2xl);
  padding-block: var(--space-lg);
  border-block: var(--rule-thin) solid var(--color-rule);
}

.chapter-pager a {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.source-list li {
  margin-block-end: var(--space-lg);
}

.source-list a {
  overflow-wrap: anywhere;
}

.source-meta {
  display: block;
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.related-thread {
  margin-block: var(--space-2xl);
  padding-block: var(--space-xl);
  border-block-start: var(--rule-heavy) solid var(--color-ink);
}

.related-thread h2 {
  margin-block-start: 0;
}

.related-thread p {
  margin-block-end: var(--space-md);
}

.site-footer {
  width: min(100%, 78rem);
  margin-inline: auto;
  padding: var(--space-2xl) var(--page-gutter) var(--space-3xl);
  border-block-start: var(--rule-thin) solid var(--color-rule);
}

.site-footer .close {
  margin: 0;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-style: normal;
  font-weight: 700;
  line-height: 1.5;
}

.site-footer .fine-print {
  max-width: 62ch;
  margin-block: var(--space-md) 0;
  color: var(--color-muted);
  font-size: var(--text-sm);
}

@media (hover: hover) and (pointer: fine) {
  a:hover {
    color: var(--color-accent-strong);
    text-decoration-thickness: var(--rule-heavy);
  }

  .home-link:hover,
  .theme-toggle:hover {
    color: var(--color-accent-strong);
    border-color: var(--color-accent);
  }
}

@media (min-width: 40rem) {
  .article-header {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
    align-items: end;
  }

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

  .chapter-pager a:last-child {
    justify-self: end;
  }

  .field-map {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
  }

  .field-map section + section {
    padding-block-start: 0;
    padding-inline-start: var(--space-lg);
    border-block-start: 0;
    border-inline-start: var(--rule-thin) solid var(--color-rule);
  }
}

@media (min-width: 60rem) {
  .article-layout {
    grid-template-columns: 13rem minmax(0, var(--measure));
    justify-content: center;
    gap: var(--space-2xl);
  }

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

@media (max-width: 39.99rem) {
  .site-header {
    align-items: flex-start;
  }

  .site-home {
    line-height: 1.25;
  }

  .header-actions {
    flex-direction: column;
    align-items: flex-end;
    gap: var(--space-xs);
  }

  .triage-table,
  .triage-table tbody,
  .triage-table tr,
  .triage-table td {
    display: block;
  }

  .triage-table thead {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
  }

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

  .triage-table td {
    display: grid;
    grid-template-columns: minmax(5.5rem, 0.55fr) minmax(0, 1fr);
    gap: var(--space-sm);
    padding: var(--space-xs) 0;
    border: 0;
  }

  .triage-table td::before {
    content: attr(data-label);
    color: var(--color-ink);
    font-family: var(--font-display);
    font-weight: 700;
  }
}

@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;
  }

  .skip-link {
    transition: none;
  }
}

@media print {
  .site-header,
  .reading-progress,
  .chapter-nav,
  .chapter-pager,
  .theme-toggle {
    display: none;
  }

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

  .article-layout {
    display: block;
  }

  a {
    color: var(--color-ink);
    text-decoration: none;
  }
}