:root {
  --color-ink: #10233f;
  --color-ink-soft: #274061;
  --color-accent: #b65c2c;
  --color-accent-strong: #8f451f;
  --color-accent-soft: #f7eadf;
  --color-surface: #ffffff;
  --color-surface-muted: #f4f2ee;
  --color-surface-subtle: #fcfaf5;
  --color-surface-contrast: #e9eef5;
  --color-border: #c9d3df;
  --color-border-strong: #93a3b6;
  --color-text: #14263d;
  --color-text-muted: #556579;
  --color-text-soft: #6f7d90;
  --color-focus: #0f4e89;
  --color-success: #2c6b57;
  --color-danger: #9b3d34;
  --shadow-soft: 0 16px 32px rgba(16, 35, 63, 0.08);
  --shadow-quiet: 0 10px 24px rgba(16, 35, 63, 0.06);
  --radius-sm: 0.75rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --shell: 76rem;
  --prose: 44rem;
  --space-2xs: 0.375rem;
  --space-xs: 0.625rem;
  --space-sm: 0.875rem;
  --space-md: 1.25rem;
  --space-lg: 1.75rem;
  --space-xl: 2.5rem;
  --space-2xl: 3.5rem;
  --space-3xl: 5rem;
  --font-body: "Avenir Next", "Segoe UI", ui-sans-serif, system-ui, sans-serif;
  --font-heading: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
}


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

html {
  scroll-behavior: smooth;
}

body {
  position: relative;
  margin: 0;
  color: var(--color-text);
  background: linear-gradient(180deg, #f8f5ef 0, #fefdf9 14rem, #ffffff 14rem, #ffffff 100%);
  font: 400 1rem/1.7 var(--font-body);
  text-rendering: optimizeLegibility;
}

body::before,
body::after {
  content: "";
  position: fixed;
  z-index: -1;
  inset: auto;
  width: 28rem;
  height: 28rem;
  border-radius: 50%;
  filter: blur(32px);
  opacity: 0.55;
  pointer-events: none;
}

body::before {
  top: -9rem;
  right: -8rem;
  background: radial-gradient(circle, rgba(182, 92, 44, 0.14), rgba(182, 92, 44, 0));
}

body::after {
  top: 18rem;
  left: -10rem;
  background: radial-gradient(circle, rgba(16, 35, 63, 0.1), rgba(16, 35, 63, 0));
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

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

button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

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

.skip-link {
  position: absolute;
  top: 0;
  left: 1rem;
  z-index: 200;
  padding: 0.75rem 1rem;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  background: var(--color-ink);
  color: #ffffff;
  transform: translateY(-160%);
}

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

h1,
h2,
h3 {
  margin: 0 0 var(--space-sm);
  color: var(--color-ink);
  line-height: 1.15;
}

h1,
h2 {
  font-family: var(--font-heading);
}

h1 {
  font-size: clamp(2.45rem, 5vw, 4.6rem);
}

h2 {
  font-size: clamp(1.85rem, 3vw, 3rem);
}

h3 {
  font-size: 1.2rem;
}

p,
ul,
ol,
blockquote,
table {
  margin: 0 0 var(--space-md);
}

ul,
ol {
  padding-left: 1.2rem;
}

blockquote {
  padding: 1rem 1.2rem;
  border-left: 4px solid var(--color-accent);
  background: rgba(182, 92, 44, 0.08);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-text);
}

code,
pre {
  font-family: ui-monospace, "SFMono-Regular", "SF Mono", Menlo, Consolas, monospace;
}

code {
  padding: 0.15rem 0.35rem;
  border-radius: 0.35rem;
  background: rgba(16, 35, 63, 0.08);
}

pre {
  overflow: auto;
  padding: 1rem;
  border-radius: var(--radius-md);
  background: #11253f;
  color: #f8fbff;
}

pre code {
  padding: 0;
  background: transparent;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 0.8rem;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
}

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

details {
  border-radius: var(--radius-md);
}

summary {
  cursor: pointer;
}

.eyebrow {
  margin: 0 0 var(--space-xs);
  color: var(--color-ink-soft);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.lead {
  max-width: 58ch;
  color: var(--color-text-muted);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
}

.prose {
  max-width: var(--prose);
  color: var(--color-text);
}

.prose a {
  color: var(--color-accent-strong);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

.prose p,
.prose li,
.prose td {
  color: var(--color-text-muted);
}

.prose h2,
.prose h3,
.prose h4 {
  margin-top: var(--space-xl);
  scroll-margin-top: 6rem;
}

.prose h2 {
  padding-top: var(--space-xs);
  border-top: 1px solid rgba(16, 35, 63, 0.08);
}

.prose h2:first-child,
.prose h3:first-child {
  margin-top: 0;
}

.compact-prose > *:last-child,
.prose > *:last-child {
  margin-bottom: 0;
}


.shell {
  width: min(100% - 2rem, var(--shell));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  border-bottom: 1px solid rgba(16, 35, 63, 0.08);
  backdrop-filter: blur(18px);
  background: rgba(255, 253, 249, 0.9);
}

.header-bar {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  justify-content: space-between;
  padding: 1rem 0;
}

.header-panel,
.header-actions,
.site-nav,
.language-switcher {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.header-panel {
  margin-left: auto;
}

.site-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  color: var(--color-ink);
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.site-logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 50%;
  background: var(--color-ink);
  color: #ffffff;
  font-family: var(--font-body);
  font-size: 1rem;
}

.page-hero {
  position: relative;
  overflow: clip;
  padding: clamp(3rem, 6vw, 6rem) 0 var(--space-2xl);
}

.page-hero::before,
.page-hero::after {
  content: "";
  position: absolute;
  pointer-events: none;
}

.page-hero::before {
  top: -8rem;
  right: -4rem;
  width: 24rem;
  height: 24rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(182, 92, 44, 0.18), rgba(182, 92, 44, 0));
}

.page-hero::after {
  left: 4rem;
  bottom: 0;
  width: 16rem;
  height: 16rem;
  background:
    linear-gradient(135deg, rgba(16, 35, 63, 0.06), rgba(16, 35, 63, 0)),
    radial-gradient(circle, rgba(16, 35, 63, 0.08), rgba(16, 35, 63, 0));
  transform: translateY(50%);
}

.page-hero-grid,
.document-hero,
.doc-layout,
.footer-grid {
  display: grid;
  gap: var(--space-xl);
}

.page-hero-grid {
  align-items: start;
}

.hero-copy,
.page-hero-inner {
  display: grid;
  gap: var(--space-md);
}

.hero-panel,
.meta-card,
.sidebar-card,
.toc-card,
.search-panel {
  border: 1px solid rgba(16, 35, 63, 0.1);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow-soft);
}

.hero-panel,
.meta-card,
.sidebar-card,
.toc-card {
  padding: var(--space-lg);
}

.page-hero-narrow .page-hero-inner {
  max-width: 52rem;
}

.page-section {
  padding: var(--space-2xl) 0;
}

.page-section-muted {
  background: linear-gradient(180deg, rgba(233, 238, 245, 0.5), rgba(244, 242, 238, 0.3));
}

.section-header {
  margin-bottom: var(--space-xl);
  max-width: 52rem;
}

.section-header-compact {
  margin-bottom: var(--space-lg);
}

.card-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
}

.card-grid-two {
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
}

.card-grid-three {
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
}

.signal-grid {
  display: grid;
  gap: var(--space-md);
  padding: 0;
  list-style: none;
}

.doc-article {
  min-width: 0;
}

.doc-sidebar {
  display: grid;
  gap: var(--space-md);
  align-content: start;
}

.footer-grid {
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
  align-items: start;
}

.footer-meta {
  display: flex;
  justify-content: space-between;
  gap: var(--space-sm);
  flex-wrap: wrap;
  padding: var(--space-lg) 0 0;
  margin-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

@media (min-width: 56rem) {
  .page-hero-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(18rem, 0.8fr);
  }

  .document-hero,
  .doc-layout {
    grid-template-columns: minmax(0, 1fr) minmax(18rem, 21rem);
  }

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

  .doc-sidebar {
    position: sticky;
    top: 6rem;
  }
}

@media (max-width: 64rem) {
  .nav-toggle {
    display: inline-flex;
  }

  .header-panel {
    position: absolute;
    top: calc(100% - 0.2rem);
    right: 0;
    z-index: 130;
    width: min(20rem, calc(100vw - 1rem));
    flex-direction: column;
    align-items: stretch;
    padding: 0.8rem;
    border: 1px solid rgba(16, 35, 63, 0.12);
    border-radius: var(--radius-md);
    background: rgba(255, 253, 249, 0.98);
    box-shadow: var(--shadow-soft);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-0.45rem);
    transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease;
  }

  .header-panel[data-open="true"] {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav,
  .header-actions {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
  }

  .site-nav {
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(16, 35, 63, 0.1);
  }

  .language-switcher {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 48rem) {
  .page-hero,
  .page-section {
    padding-top: var(--space-xl);
    padding-bottom: var(--space-xl);
  }

  .footer-meta {
    flex-direction: column;
  }
}


.site-nav a,
.language-switcher a {
  padding: 0.55rem 0.85rem;
  border-radius: 999px;
  color: var(--color-text-muted);
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"],
.language-switcher a:hover,
.language-switcher a[aria-current="page"] {
  color: var(--color-ink);
  background: rgba(16, 35, 63, 0.06);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.65rem;
  min-height: 2.8rem;
  padding: 0.65rem 0.95rem;
  border: 1px solid rgba(16, 35, 63, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.88);
  color: var(--color-ink);
  box-shadow: var(--shadow-quiet);
  font-weight: 700;
}

.nav-toggle-icon,
.nav-toggle-icon::before,
.nav-toggle-icon::after {
  display: block;
  width: 1rem;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition: transform 180ms ease, top 180ms ease, opacity 180ms ease;
}

.nav-toggle-icon {
  position: relative;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
}

.nav-toggle-icon::before {
  top: -0.32rem;
}

.nav-toggle-icon::after {
  top: 0.32rem;
}

.nav-open .nav-toggle-icon {
  background: transparent;
}

.nav-open .nav-toggle-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-open .nav-toggle-icon::after {
  top: 0;
  transform: rotate(-45deg);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.75rem 1.2rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  transition: transform 180ms ease, background-color 180ms ease, color 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--color-accent);
  color: #ffffff;
  box-shadow: 0 10px 18px rgba(182, 92, 44, 0.2);
}

.button-primary:hover {
  background: var(--color-accent-strong);
  color: #ffffff;
}

.button-secondary {
  border-color: rgba(16, 35, 63, 0.16);
  background: transparent;
  color: var(--color-ink);
}

.button-secondary:hover {
  background: rgba(16, 35, 63, 0.05);
}

.button-block {
  width: 100%;
}

.action-group {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  align-items: center;
}

.summary-card,
.signal-grid li {
  position: relative;
  display: grid;
  gap: var(--space-xs);
  padding: var(--space-lg);
  border: 1px solid rgba(16, 35, 63, 0.09);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow-quiet);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.summary-card::before,
.signal-grid li::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 0.24rem;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  background: linear-gradient(90deg, rgba(16, 35, 63, 0.92), rgba(182, 92, 44, 0.92));
}

.summary-card:hover,
.summary-card:focus-within,
.pager-link:hover,
.pager-link:focus-visible,
.signal-grid li:hover {
  transform: translateY(-3px);
  border-color: rgba(16, 35, 63, 0.18);
  box-shadow: 0 18px 34px rgba(16, 35, 63, 0.1);
}

.summary-card h3 {
  margin-bottom: 0;
}

.summary-card h3 a {
  color: var(--color-ink);
  text-decoration: none;
}

.summary-card p {
  margin-bottom: 0;
  color: var(--color-text-muted);
}

.card-eyebrow,
.sidebar-eyebrow,
.meta-row span,
.meta-languages span,
.pager-label {
  color: var(--color-text-soft);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.summary-link {
  color: var(--color-accent-strong);
  font-weight: 700;
  text-decoration: none;
}

.meta-stack {
  display: grid;
  gap: 0.85rem;
}

.meta-card,
.sidebar-card,
.toc-card,
.hero-panel {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(252, 250, 245, 0.96)),
    rgba(255, 255, 255, 0.94);
}

.meta-row {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid rgba(16, 35, 63, 0.08);
}

.meta-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.meta-row strong,
.summary-card strong {
  color: var(--color-ink);
}

.meta-languages {
  display: grid;
  gap: 0.55rem;
  margin-top: var(--space-md);
}

.language-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.language-pills a {
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  background: var(--color-surface-muted);
  text-decoration: none;
  color: var(--color-ink);
}

.language-pills a[aria-current="page"] {
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
  margin: 0 0 var(--space-md);
  list-style: none;
}

.breadcrumbs li {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-soft);
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.66);
  border: 1px solid rgba(16, 35, 63, 0.06);
}

.breadcrumbs li:not(:last-child)::after {
  content: "/";
  color: var(--color-border-strong);
}

.breadcrumbs a {
  text-decoration: none;
  color: var(--color-text-soft);
}

.toc-card h2,
.sidebar-card h2 {
  font-family: var(--font-body);
  font-size: 1rem;
  margin-bottom: 0.8rem;
}

.toc-list {
  padding-left: 1rem;
  margin: 0;
}

.toc-item {
  margin-bottom: 0.55rem;
}

.toc-level-3,
.toc-level-4 {
  margin-left: 0.65rem;
}

.toc-item a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.toc-item a:hover {
  color: var(--color-accent-strong);
}

.related-docs {
  margin-top: var(--space-2xl);
}

.pager {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-2xl);
}

.pager-link {
  display: grid;
  gap: 0.45rem;
  padding: var(--space-md);
  border: 1px solid rgba(16, 35, 63, 0.09);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.94);
  text-decoration: none;
  box-shadow: var(--shadow-quiet);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.pager-link-next {
  text-align: right;
}

.pager-link-empty {
  visibility: hidden;
}

.search-shell {
  padding-bottom: 1rem;
}

.search-panel {
  padding: var(--space-lg);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 245, 239, 0.96)),
    rgba(255, 255, 255, 0.95);
}

.search-panel-head {
  display: flex;
  justify-content: space-between;
  gap: var(--space-sm);
  align-items: center;
  margin-bottom: var(--space-md);
}

.search-label {
  color: var(--color-ink);
  font-weight: 700;
}

.search-close {
  border: 0;
  background: transparent;
  color: var(--color-ink);
  font-weight: 700;
}

.search-input-wrap {
  display: grid;
  gap: var(--space-xs);
}

.search-input {
  width: 100%;
  padding: 0.9rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 0.9rem;
  background: #ffffff;
}

.search-help {
  color: var(--color-text-soft);
  font-size: 0.92rem;
}

.search-results {
  display: grid;
  gap: 0.65rem;
  margin-top: var(--space-md);
}

.search-result,
.search-empty {
  display: grid;
  gap: 0.35rem;
  padding: 0.95rem 1rem;
  border: 1px solid rgba(16, 35, 63, 0.08);
  border-radius: 1rem;
  background: var(--color-surface-subtle);
  text-decoration: none;
}

.search-result em {
  color: var(--color-text-soft);
  font-size: 0.82rem;
  font-style: normal;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.search-result span,
.search-empty {
  color: var(--color-text-muted);
}

.search-result-active {
  border-color: rgba(15, 78, 137, 0.4);
  background: rgba(233, 238, 245, 0.8);
}

.site-footer {
  padding: var(--space-2xl) 0 var(--space-lg);
  background:
    radial-gradient(circle at top right, rgba(182, 92, 44, 0.18), rgba(182, 92, 44, 0) 24rem),
    linear-gradient(180deg, #0f2038, #0b1830);
  color: #ffffff;
}

.footer-brand,
.footer-heading {
  color: #ffffff;
}

.footer-brand {
  font-size: 1.45rem;
  letter-spacing: 0.03em;
}

.footer-heading {
  margin-bottom: var(--space-sm);
  font-family: var(--font-body);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.footer-copy,
.footer-meta {
  color: rgba(255, 255, 255, 0.76);
}

.footer-links {
  padding: 0;
  margin: 0;
  list-style: none;
}

.footer-links li + li {
  margin-top: 0.45rem;
}

.footer-links a {
  color: #ffffff;
  text-decoration: none;
}

@media (max-width: 48rem) {
  .pager {
    grid-template-columns: 1fr;
  }
}


.compact-prose {
  max-width: 38rem;
}

.search-result strong,
.summary-card h3,
.meta-card strong,
.pager-link strong {
  color: var(--color-ink);
}

.hero-panel-prose,
.hero-panel-prose p:last-child {
  margin-bottom: 0;
}

.hero-panel-prose h2 {
  font-size: 1.05rem;
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0s !important;
    scroll-behavior: auto !important;
  }
}