:root {
  color-scheme: light;
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-alt: #edf3fb;
  --text: #182335;
  --muted: #5f6d82;
  --border: #d6deea;
  --brand: #176fd1;
  --brand-strong: #0c4f9e;
  --brand-soft: #e4f0ff;
  --accent: #16a8c7;
  --code-bg: #111b2c;
  --code-text: #e8f1ff;
  --note: #2e77ba;
  --tip: #19815c;
  --warning: #a76700;
  --important: #9a3d62;
  --shadow: 0 16px 45px rgba(31, 51, 78, 0.1);
  --radius: 14px;
  --sidebar-width: 292px;
  --content-width: 1400px;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0d1420;
  --surface: #141f2f;
  --surface-alt: #1a2940;
  --text: #eaf2ff;
  --muted: #aab9ce;
  --border: #2d3d54;
  --brand: #6bb2ff;
  --brand-strong: #91c6ff;
  --brand-soft: #17375c;
  --accent: #50d3e9;
  --code-bg: #08101c;
  --code-text: #eef6ff;
  --note: #71b8ff;
  --tip: #68d4a9;
  --warning: #f0b85f;
  --important: #ef91b6;
  --shadow: 0 18px 48px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 78px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.68;
}

a {
  color: var(--brand);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

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

button,
input {
  font: inherit;
}

.skip-link {
  position: fixed;
  z-index: 200;
  top: 8px;
  left: 8px;
  transform: translateY(-160%);
  border-radius: 8px;
  background: var(--surface);
  padding: 10px 14px;
  box-shadow: var(--shadow);
}

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

.topbar {
  position: sticky;
  z-index: 100;
  top: 0;
  display: flex;
  min-height: 64px;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  padding: 8px clamp(16px, 4vw, 52px);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--text);
  font-weight: 760;
  text-decoration: none;
}

.brand img {
  border-radius: 10px;
}

.topbar-actions {
  display: flex;
  gap: 8px;
}

.language-switch {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-right: auto;
  margin-left: clamp(16px, 3vw, 40px);
  font-size: 0.9rem;
  font-weight: 700;
}

.language-switch a {
  border-radius: 6px;
  padding: 4px 6px;
  text-decoration: none;
}

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

.language-landing {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 24px;
}

.language-card {
  width: min(620px, 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: clamp(28px, 6vw, 54px);
  box-shadow: var(--shadow);
  text-align: center;
}

.language-card img {
  border-radius: 24px;
}

.language-choice {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 24px;
}

.icon-button {
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--surface);
  color: var(--text);
  padding: 7px 11px;
  cursor: pointer;
}

.icon-button:hover,
.icon-button:focus-visible {
  border-color: var(--brand);
  outline: none;
}

.menu-toggle {
  display: none;
}

.page-shell {
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  width: min(1760px, 100%);
  margin: 0 auto;
}

.sidebar {
  position: sticky;
  top: 64px;
  align-self: start;
  height: calc(100vh - 64px);
  overflow-y: auto;
  border-right: 1px solid var(--border);
  background: var(--surface);
  padding: 22px 18px 34px;
}

.nav-search {
  margin-bottom: 16px;
}

.nav-search label {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nav-search input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--bg);
  color: var(--text);
  padding: 9px 10px;
}

.nav-search input:focus {
  border-color: var(--brand);
  outline: 3px solid color-mix(in srgb, var(--brand) 18%, transparent);
}

.search-status {
  min-height: 1.2em;
  margin: 5px 2px 0;
  color: var(--muted);
  font-size: 0.76rem;
}

.sidebar nav {
  display: grid;
  gap: 3px;
}

.sidebar nav a {
  border-left: 3px solid transparent;
  border-radius: 5px 9px 9px 5px;
  color: var(--muted);
  padding: 7px 9px;
  font-size: 0.91rem;
  font-weight: 580;
  line-height: 1.3;
  text-decoration: none;
}

.sidebar nav a:hover {
  background: var(--surface-alt);
  color: var(--text);
}

.sidebar nav a.active {
  border-left-color: var(--brand);
  background: var(--brand-soft);
  color: var(--brand-strong);
}

.sidebar nav a.search-hidden {
  display: none;
}

.content {
  width: min(var(--content-width), 100%);
  overflow-x: clip;
  margin: 0 auto;
  padding: 36px clamp(22px, 3.2vw, 56px) 70px;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 34px;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--brand) 26%, var(--border));
  border-radius: 20px;
  background:
    radial-gradient(circle at 92% 10%, color-mix(in srgb, var(--accent) 22%, transparent), transparent 34%),
    linear-gradient(135deg, var(--surface), var(--brand-soft));
  padding: clamp(28px, 5vw, 54px);
  box-shadow: var(--shadow);
}

.hero-logo {
  width: 128px;
  height: 128px;
  align-self: center;
  filter: drop-shadow(0 12px 18px rgba(21, 92, 161, 0.22));
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--brand-strong);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  color: var(--text);
  line-height: 1.22;
}

h1 {
  margin: 0;
  font-size: clamp(2.15rem, 6vw, 4rem);
  letter-spacing: -0.045em;
}

h2 {
  margin: 0;
  font-size: clamp(1.55rem, 3vw, 2.2rem);
  letter-spacing: -0.025em;
}

h3 {
  margin: 1.55em 0 0.45em;
  font-size: 1.08rem;
}

.hero-subtitle {
  margin: 6px 0 12px;
  color: var(--brand-strong);
  font-size: clamp(1.05rem, 2.5vw, 1.35rem);
  font-weight: 700;
}

.hero-summary {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
  font-size: 1.04rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  padding: 8px 15px;
  font-weight: 700;
  text-decoration: none;
}

.button:hover {
  border-color: var(--brand);
  color: var(--brand-strong);
}

.button.primary {
  border-color: var(--brand);
  background: var(--brand);
  color: #fff;
}

.doc-section {
  scroll-margin-top: 82px;
  border-bottom: 1px solid var(--border);
  padding: 60px 0;
}

.section-heading {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-bottom: 22px;
}

.section-heading > span {
  display: grid;
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  place-items: center;
  border-radius: 10px;
  background: var(--brand-soft);
  color: var(--brand-strong);
  font-size: 0.78rem;
  font-weight: 850;
}

p,
li {
  max-width: 78ch;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 24px 0;
}

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

.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 18px;
  box-shadow: 0 7px 22px rgba(30, 50, 78, 0.05);
}

.card h3 {
  margin-top: 0;
}

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

.callout {
  border-left: 5px solid var(--note);
  border-radius: 0 11px 11px 0;
  background: color-mix(in srgb, var(--note) 9%, var(--surface));
  margin: 24px 0;
  padding: 15px 18px;
}

.callout strong {
  color: var(--note);
}

.callout p {
  margin: 4px 0 0;
}

.callout.tip {
  border-left-color: var(--tip);
  background: color-mix(in srgb, var(--tip) 9%, var(--surface));
}

.callout.tip strong {
  color: var(--tip);
}

.callout.warning {
  border-left-color: var(--warning);
  background: color-mix(in srgb, var(--warning) 10%, var(--surface));
}

.callout.warning strong {
  color: var(--warning);
}

.callout.important {
  border-left-color: var(--important);
  background: color-mix(in srgb, var(--important) 9%, var(--surface));
}

.callout.important strong {
  color: var(--important);
}

.steps {
  list-style: none;
  padding: 0;
}

.steps li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  align-items: center;
  gap: 20px;
  min-height: 54px;
  margin: 12px 0;
}

.steps .step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--brand);
  color: #fff;
  font-weight: 800;
  line-height: 1;
}

.compact-steps {
  margin: 16px 0 0;
  padding-left: 24px;
}

.compact-steps li {
  margin: 8px 0;
}

.anchor-target {
  display: block;
  position: relative;
  top: -76px;
  visibility: hidden;
}

.example-context {
  display: grid;
  grid-template-columns: minmax(130px, 0.3fr) minmax(0, 1fr);
  gap: 8px 18px;
  margin: 16px 0 20px;
}

.example-context dt {
  color: var(--text);
  font-weight: 750;
}

.example-context dd {
  margin: 0;
  color: var(--muted);
}

@media (max-width: 720px) {
  .example-context {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .example-context dd + dt {
    margin-top: 8px;
  }
}

code {
  border-radius: 5px;
  background: var(--surface-alt);
  color: var(--brand-strong);
  padding: 0.12em 0.32em;
  font-family: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
  font-size: 0.9em;
}

pre {
  position: relative;
  overflow: auto;
  border: 1px solid color-mix(in srgb, var(--brand) 24%, transparent);
  border-radius: 13px;
  background: var(--code-bg);
  padding: 20px;
  tab-size: 4;
}

pre code {
  display: block;
  min-width: max-content;
  background: transparent;
  color: var(--code-text);
  padding: 0;
  font-size: 0.88rem;
  line-height: 1.62;
}

.copy-button {
  position: absolute;
  top: 8px;
  right: 8px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  padding: 5px 9px;
  font-size: 0.75rem;
  cursor: pointer;
}

.copy-button:hover,
.copy-button:focus-visible {
  background: rgba(255, 255, 255, 0.2);
  outline: none;
}

.flow {
  display: flex;
  align-items: stretch;
  gap: 10px;
  margin: 24px 0;
}

.flow > div {
  display: flex;
  min-width: 0;
  flex: 1 1 0;
  flex-direction: column;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  padding: 14px;
  text-align: center;
}

.flow > div span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.82rem;
}

.flow > b {
  align-self: center;
  color: var(--brand);
}

.flow.compact > div {
  padding: 10px;
  font-size: 0.87rem;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 24px 0;
}

.timeline > div {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  padding: 18px;
}

.timeline span {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border-radius: 50%;
  background: var(--brand-soft);
  color: var(--brand-strong);
  font-weight: 800;
}

.timeline h3 {
  margin: 11px 0 5px;
}

.timeline p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.table-scroll {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  margin: 20px 0;
  font-size: 0.92rem;
}

th,
td {
  border-bottom: 1px solid var(--border);
  padding: 11px 13px;
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--surface-alt);
  font-weight: 750;
}

tr:last-child > th,
tr:last-child > td {
  border-bottom: 0;
}

.check-list {
  list-style: none;
  padding-left: 0;
}

.check-list li {
  position: relative;
  margin: 9px 0;
  padding-left: 28px;
}

.check-list li::before {
  position: absolute;
  left: 0;
  color: var(--tip);
  content: "✓";
  font-weight: 900;
}

details {
  border: 1px solid var(--border);
  border-radius: 11px;
  background: var(--surface);
  margin: 10px 0;
  padding: 12px 15px;
}

summary {
  cursor: pointer;
  font-weight: 720;
}

details p {
  margin-bottom: 4px;
  color: var(--muted);
}

.site-footer {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 14px;
  align-items: center;
  padding-top: 38px;
  color: var(--muted);
  font-size: 0.85rem;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 980px) {
  .menu-toggle {
    display: inline-block;
  }

  .page-shell {
    display: block;
  }

  .sidebar {
    position: fixed;
    z-index: 90;
    top: 64px;
    bottom: 0;
    left: 0;
    width: min(88vw, var(--sidebar-width));
    height: auto;
    transform: translateX(-105%);
    border-right: 1px solid var(--border);
    box-shadow: var(--shadow);
    transition: transform 160ms ease-out;
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .content {
    padding-top: 24px;
  }

  .hero {
    grid-template-columns: 110px minmax(0, 1fr);
    gap: 22px;
  }

  .hero-logo {
    width: 96px;
    height: 96px;
  }
}

@media (max-width: 720px) {
  .brand span {
    max-width: 190px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .language-switch {
    margin-right: 8px;
    margin-left: 8px;
  }

  .content {
    padding-right: 16px;
    padding-left: 16px;
  }

  .hero {
    display: block;
    padding: 28px 22px;
    text-align: center;
  }

  .hero-logo {
    margin-bottom: 14px;
  }

  .hero-actions {
    justify-content: center;
  }

  .card-grid,
  .card-grid.two,
  .timeline {
    grid-template-columns: 1fr;
  }

  .flow,
  .flow.compact {
    flex-direction: column;
  }

  .flow > b {
    transform: rotate(90deg);
  }

  .site-footer {
    grid-template-columns: auto 1fr;
  }

  .site-footer > a {
    grid-column: 1 / -1;
  }
}

@media (max-width: 460px) {
  .topbar {
    gap: 3px;
    padding-right: 10px;
    padding-left: 10px;
  }

  .brand span {
    display: none;
  }

  .language-switch {
    gap: 2px;
    margin-right: 2px;
    margin-left: 2px;
    font-size: 0.8rem;
  }

  .language-switch a {
    padding: 3px;
  }

  .icon-button {
    padding-right: 6px;
    padding-left: 6px;
    font-size: 0.78rem;
  }

  .topbar-actions {
    gap: 3px;
  }
}

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

  .sidebar {
    transition: none;
  }
}

@media print {
  :root,
  html[data-theme="dark"] {
    color-scheme: light;
    --bg: #fff;
    --surface: #fff;
    --surface-alt: #f2f4f7;
    --text: #111;
    --muted: #444;
    --border: #bbb;
    --brand: #155b9e;
    --brand-strong: #123f69;
    --brand-soft: #eef5fb;
    --code-bg: #f3f5f8;
    --code-text: #111;
  }

  body {
    font-size: 10.5pt;
  }

  .topbar,
  .sidebar,
  .hero-actions,
  .copy-button,
  .skip-link,
  .site-footer > a {
    display: none !important;
  }

  .page-shell,
  .content {
    display: block;
    width: 100%;
    max-width: none;
    padding: 0;
  }

  .hero {
    box-shadow: none;
    break-after: page;
  }

  .doc-section {
    break-inside: avoid;
    padding: 28px 0;
  }

  a {
    color: inherit;
    text-decoration: none;
  }

  pre {
    overflow: visible;
    white-space: pre-wrap;
  }
}

/* RC3-DOC R2: content-type surfaces and responsive navigation. */
.page-header {
  border-bottom: 1px solid var(--border);
  padding: 12px 0 28px;
}

.page-header h1 {
  max-width: 19ch;
  font-size: clamp(2rem, 5vw, 3.35rem);
}

.page-header > p:last-child {
  max-width: 74ch;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 1.06rem;
}

.nav-subgroup {
  border: 0;
  background: transparent;
  margin: 2px 0 3px 7px;
  padding: 0;
}

.nav-subgroup > summary {
  border-radius: 7px;
  color: var(--muted);
  padding: 6px 8px;
  font-size: 0.78rem;
  font-weight: 780;
  letter-spacing: 0.025em;
  text-transform: uppercase;
}

.nav-subgroup > summary:hover,
.nav-subgroup > summary:focus-visible {
  background: var(--surface-alt);
  color: var(--text);
  outline: none;
}

.nav-subgroup-links {
  display: grid;
  gap: 2px;
  padding: 2px 0 6px 6px;
}

.sidebar nav .nav-subgroup-links a {
  font-size: 0.82rem;
}

.decision-grid,
.symptom-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 22px 0;
}

.decision-grid article,
.symptom-list article,
.verification-panel {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  padding: 17px 19px;
}

.decision-grid h3,
.symptom-list h3,
.verification-panel h3 {
  margin-top: 0;
}

.decision-grid p,
.symptom-list p {
  margin-bottom: 0;
  color: var(--muted);
}

.verification-panel {
  border-left: 5px solid var(--tip);
  background: color-mix(in srgb, var(--tip) 7%, var(--surface));
  margin: 22px 0;
}

.relationship-diagram {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  width: 100%;
  margin: 24px 0;
}

.relationship-diagram > .relationship-node {
  display: grid;
  min-width: 0;
  min-height: 82px;
  place-content: center;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  padding: 13px;
  text-align: center;
}

.relationship-diagram .relationship-node span {
  color: var(--muted);
  font-size: 0.8rem;
}

.relationship-diagram > .relationship-arrow {
  display: flex;
  min-height: 24px;
  align-items: center;
  justify-content: center;
  color: var(--brand);
  font-size: 1.2rem;
  font-weight: 800;
  line-height: 1;
}

.button-link {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  border: 1px solid var(--brand);
  border-radius: 9px;
  padding: 7px 13px;
  font-weight: 740;
  text-decoration: none;
}

.steps .step-number {
  box-sizing: border-box;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  text-align: center;
}

.timeline {
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

@media (max-width: 620px) {
  .brand span {
    display: none;
  }

  .decision-grid,
  .symptom-list {
    grid-template-columns: 1fr;
  }

  .steps li {
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 14px;
  }

  .steps .step-number {
    width: 40px;
    height: 40px;
  }
}

.nav-group {
  margin: 4px 0;
  padding: 0;
  border: 0;
  background: transparent;
}

.nav-group > summary {
  border-radius: 8px;
  color: var(--text);
  padding: 8px 9px;
  font-size: 0.9rem;
  font-weight: 760;
}

.nav-group > summary:hover,
.nav-group > summary:focus-visible {
  background: var(--surface-alt);
  outline: none;
}

.nav-group-links {
  display: grid;
  gap: 2px;
  padding: 3px 0 8px 8px;
}

.sidebar nav .nav-group-links a {
  font-size: 0.84rem;
}

.search-results {
  position: relative;
  z-index: 4;
  display: grid;
  max-height: 48vh;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.search-results[hidden] {
  display: none;
}

.search-results a {
  display: grid;
  gap: 3px;
  border-bottom: 1px solid var(--border);
  padding: 9px 10px;
  text-decoration: none;
}

.search-results a:last-child {
  border-bottom: 0;
}

.search-results a:hover,
.search-results a:focus-visible {
  background: var(--brand-soft);
  outline: none;
}

.search-results small {
  display: -webkit-box;
  overflow: hidden;
  color: var(--muted);
  font-size: 0.74rem;
  line-height: 1.35;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 20px;
  color: var(--muted);
  font-size: 0.82rem;
}

.page-hero {
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--brand) 24%, var(--border));
  border-radius: 18px;
  background: linear-gradient(135deg, var(--surface), var(--brand-soft));
  padding: clamp(26px, 5vw, 48px);
  box-shadow: var(--shadow);
}

.page-hero h1 {
  font-size: clamp(2rem, 5vw, 3.4rem);
}

.page-hero > p:last-child {
  max-width: 76ch;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.page-toc {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  margin: 24px 0 4px;
  padding: 16px 20px;
}

.page-toc ol {
  columns: 2;
  gap: 32px;
  margin: 10px 0 0;
  padding-left: 22px;
}

.page-toc li {
  break-inside: avoid;
  margin: 5px 0;
}

.coverage-ref {
  display: inline-flex;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand-strong);
  margin: 0 0 10px;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 750;
  letter-spacing: 0.025em;
}

.persona-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 20px 0;
}

.persona-grid article {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  padding: 18px;
}

.persona-grid span {
  color: var(--brand-strong);
  font-weight: 780;
}

.persona-grid p {
  margin-bottom: 0;
  color: var(--muted);
}

.documentation-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: 18px;
}

.documentation-figure {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  margin: 0;
  box-shadow: var(--shadow);
}

.documentation-figure a {
  display: block;
  background: #101722;
}

.documentation-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: contain;
}

.documentation-figure figcaption {
  border-top: 1px solid var(--border);
  color: var(--muted);
  padding: 12px 14px 14px;
  font-size: 0.86rem;
  line-height: 1.5;
}

.page-pagination {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  border-top: 1px solid var(--border);
  margin-top: 34px;
  padding-top: 26px;
}

.page-link {
  display: grid;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  padding: 14px 16px;
  text-decoration: none;
}

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

.page-link span {
  color: var(--muted);
  font-size: 0.76rem;
  text-transform: uppercase;
}

.page-link:hover,
.page-link:focus-visible {
  border-color: var(--brand);
  outline: none;
}

@media (max-width: 720px) {
  .page-toc ol {
    columns: 1;
  }

  .persona-grid,
  .page-pagination {
    grid-template-columns: 1fr;
  }

  .page-link.next {
    text-align: left;
  }
}

@media print {
  .breadcrumbs,
  .page-toc,
  .page-pagination,
  .coverage-ref {
    display: none !important;
  }

  .page-hero {
    box-shadow: none;
  }
}