:root {
  color-scheme: light;
  --bg: #f4f5f2;
  --surface: #ffffff;
  --surface-muted: #e9ece8;
  --ink: #17201e;
  --muted: #5f6b67;
  --line: #d7ddd8;
  --line-strong: #b8c3bd;
  --accent: #1e5a54;
  --accent-strong: #16453f;
  --accent-soft: #dcebe6;
  --warm: #f2eadc;
  --dark: #182521;
  --dark-surface: #21322d;
  --dark-ink: #f1f5f2;
  --dark-muted: #b4c4bd;
  --dark-line: #3c514a;
  --shadow: 0 12px 36px rgba(26, 42, 36, 0.08);
  --radius: 12px;
  --shell: 1180px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #111815;
    --surface: #18221f;
    --surface-muted: #202d29;
    --ink: #edf3ef;
    --muted: #aebbb5;
    --line: #33423d;
    --line-strong: #52635c;
    --accent: #8bd1be;
    --accent-strong: #a6e2d0;
    --accent-soft: #1e3b35;
    --warm: #3a3428;
    --dark: #0e1513;
    --dark-surface: #1b2924;
    --dark-ink: #f1f5f2;
    --dark-muted: #b4c4bd;
    --dark-line: #3c514a;
    --shadow: 0 16px 42px rgba(0, 0, 0, 0.22);
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
}

body,
button,
input,
select {
  font-size: 15px;
}

a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.2em;
}

button,
input,
select {
  font: inherit;
}

button,
select {
  cursor: pointer;
}

button:focus-visible,
a:focus-visible,
select:focus-visible,
input:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

code {
  padding: 0.15em 0.35em;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--surface-muted);
  font-size: 0.9em;
}

.shell {
  width: min(calc(100% - 48px), var(--shell));
  margin: 0 auto;
}

.locale-switcher {
  display: inline-flex;
  align-items: center;
}

.locale-switcher select {
  min-width: 92px;
  padding: 7px 28px 7px 9px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  color: var(--ink);
}

.narrow-shell {
  max-width: 780px;
}

.site-header {
  position: sticky;
  z-index: 10;
  top: 0;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 94%, transparent);
  backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 750;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.wordmark-mark {
  display: block;
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.wordmark-copy {
  display: grid;
  gap: 2px;
}

.wordmark-name {
  line-height: 1.1;
}

.wordmark-descriptor {
  color: var(--muted);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.1;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
}

.nav-links a {
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--ink);
}

.nav-links a[aria-current="page"] {
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 2px;
  text-underline-offset: 7px;
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--surface);
  color: var(--ink);
  padding: 8px 12px;
}

.skip-link {
  position: absolute;
  z-index: 20;
  top: -100px;
  left: 16px;
  padding: 10px 14px;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
}

.skip-link:focus {
  top: 16px;
}

.hero-section {
  padding: 96px 0 88px;
  border-bottom: 1px solid var(--line);
}

.hero-grid,
.example-grid,
.run-grid,
.adapter-grid,
.developer-cta,
.limits-grid,
.two-column {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
  align-items: start;
  gap: 56px;
}

.hero-copy {
  max-width: 760px;
}

.eyebrow-row,
.button-row,
.preview-panel-head,
.split-heading,
.panel-heading,
.filter-bar-head,
.case-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.eyebrow-row {
  justify-content: flex-start;
  flex-wrap: wrap;
}

.eyebrow {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  line-height: 1.4;
  text-transform: uppercase;
}

.status-badge {
  display: inline-flex;
  min-height: 24px;
  align-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 3px 9px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1.2;
  white-space: nowrap;
}

.status-preview {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.status-muted {
  border-color: var(--line);
  background: var(--surface-muted);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  color: var(--ink);
  font-weight: 760;
  letter-spacing: -0.035em;
  line-height: 1.08;
}

h1 {
  max-width: 900px;
  margin: 22px 0 22px;
  font-size: clamp(42px, 6vw, 78px);
}

h1 em {
  color: var(--accent);
  font-style: normal;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(28px, 4vw, 46px);
}

h3 {
  margin-bottom: 9px;
  font-size: 20px;
}

p {
  color: var(--muted);
}

.hero-lede,
.lede {
  max-width: 690px;
  margin-bottom: 30px;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.6;
}

.hero-note,
.notice-line {
  max-width: 680px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.button-row {
  justify-content: flex-start;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 7px;
  padding: 9px 15px;
  font-size: 13px;
  font-weight: 750;
  text-decoration: none;
  transition: background-color 120ms ease, border-color 120ms ease, color 120ms ease;
}

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

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

.button-secondary {
  border-color: var(--line-strong);
  background: var(--surface);
  color: var(--ink);
}

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

.button-quiet {
  border-color: transparent;
  background: transparent;
  color: var(--muted);
}

.button-quiet:hover {
  border-color: var(--line);
  background: var(--surface-muted);
  color: var(--ink);
}

.panel,
.route-card,
.case-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.panel {
  padding: 26px;
}

.hero-aside {
  margin-top: 32px;
  box-shadow: var(--shadow);
}

.equation {
  display: grid;
  gap: 8px;
  margin: 26px 0;
  color: var(--ink);
  font-size: 25px;
  font-weight: 720;
  letter-spacing: -0.04em;
}

.equation strong {
  color: var(--accent);
  font-size: 32px;
  font-weight: 500;
}

.rule {
  height: 1px;
  margin: 22px 0;
  background: var(--line);
}

.section {
  padding: 88px 0;
}

.section-muted {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--surface-muted);
}

.section-dark {
  background: var(--dark);
  color: var(--dark-ink);
}

.section-dark h2,
.section-dark h3,
.section-dark .eyebrow,
.section-dark p,
.section-dark .section-copy {
  color: var(--dark-ink);
}

.section-dark p,
.section-dark .section-copy {
  color: var(--dark-muted);
}

.section-heading {
  max-width: 740px;
  margin-bottom: 32px;
}

.section-heading h2 {
  margin-top: 11px;
}

.section-copy {
  max-width: 690px;
  color: var(--muted);
  font-size: 17px;
}

.text-link,
.back-link {
  color: var(--accent-strong);
  font-size: 13px;
  font-weight: 750;
}

.back-link {
  display: inline-block;
  margin-bottom: 26px;
  text-decoration: none;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
}

.metric {
  min-height: 132px;
  padding: 20px;
  background: var(--surface);
}

.metric dt {
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.metric dd {
  margin: 10px 0 8px;
  color: var(--ink);
  font-size: 32px;
  font-weight: 760;
  letter-spacing: -0.04em;
}

.metric p {
  margin: 0;
  font-size: 12px;
}

.snapshot-note {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-top: 20px;
}

.snapshot-note p {
  flex: 1;
  margin: 0;
  font-size: 13px;
}

.dimension-grid,
.method-card-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--dark-line);
  background: var(--dark-line);
}

.dimension-card,
.method-card {
  min-height: 236px;
  padding: 22px;
  background: var(--dark-surface);
}

.dimension-index {
  display: block;
  margin-bottom: 48px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
}

.dimension-card h3,
.method-card h3 {
  font-size: 19px;
}

.dimension-card p,
.method-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.55;
}

.preview-panel {
  padding: 0;
  overflow: hidden;
}

.preview-panel-head {
  min-height: 66px;
  padding: 15px 22px;
  border-bottom: 1px solid var(--line);
}

.empty-state {
  padding: 58px 28px;
  text-align: center;
}

.empty-mark {
  display: block;
  margin-bottom: 12px;
  color: var(--accent);
  font-size: 36px;
  font-weight: 400;
  line-height: 1;
}

.empty-state h2 {
  margin-bottom: 9px;
  font-size: 25px;
}

.empty-state p {
  max-width: 560px;
  margin: 0 auto 12px;
  font-size: 14px;
}

.empty-action {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.schema-strip,
.schema-grid {
  border-top: 1px solid var(--line);
  padding: 20px 22px;
}

.pill-row,
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.dimension-pill,
.tag {
  display: inline-flex;
  min-height: 25px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px 9px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
}

.section-dark .dimension-pill {
  border-color: var(--dark-line);
  color: var(--dark-muted);
}

.example-grid {
  align-items: center;
}

.case-quote,
.quote-section {
  border-left: 3px solid var(--accent);
  padding-left: 22px;
}

.case-quote {
  margin: 30px 0;
}

.quote-label {
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.review-translation-banner {
  margin-top: 16px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface-muted);
  color: var(--muted);
  font-size: 12px;
}

.review-translation {
  margin: 8px 0 0;
  padding: 12px 14px;
  border-left: 3px solid var(--accent);
  background: var(--surface-muted);
}

.review-translation .quote-label {
  margin-top: 0;
}

.review-translation-text {
  font-size: 16px;
  line-height: 1.75;
}

.review-translation-note {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.review-translation-missing {
  border-left-color: var(--line-strong);
}

blockquote {
  margin: 0 0 24px;
  color: var(--ink);
  font-size: 24px;
  font-weight: 650;
  letter-spacing: -0.025em;
  line-height: 1.35;
}

.example-aside {
  padding: 25px;
}

.feature-list,
.plain-list {
  margin: 20px 0;
  padding: 0;
  list-style: none;
}

.feature-list li {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 16px;
  padding: 13px 0;
  border-top: 1px solid var(--line);
  font-size: 13px;
}

.feature-list li span:first-child {
  color: var(--ink);
  font-weight: 800;
}

.feature-list li span:last-child {
  color: var(--muted);
}

.developer-cta {
  align-items: center;
}

.developer-cta .section-heading {
  margin-bottom: 0;
}

.limits-grid {
  align-items: center;
}

.page-intro {
  padding: 78px 0 56px;
  border-bottom: 1px solid var(--line);
}

.page-intro h1 {
  font-size: clamp(44px, 6vw, 68px);
}

.leaderboard-empty {
  padding: 0;
  overflow: hidden;
}

.schema-grid {
  display: grid;
  gap: 18px;
}

.schema-grid > p {
  margin: 0;
  font-size: 13px;
}

.filter-preview {
  max-width: 860px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.table-wrap {
  overflow-x: auto;
  border-top: 1px solid var(--line);
}

.leaderboard-table {
  width: 100%;
  min-width: 780px;
  border-collapse: collapse;
  font-size: 12px;
  text-align: left;
}

.leaderboard-table caption {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.leaderboard-table th,
.leaderboard-table td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.leaderboard-table th {
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

.leaderboard-table tbody tr:last-child td {
  border-bottom: 0;
}

.leaderboard-empty-cell {
  color: var(--muted) !important;
  text-align: center;
}

.mobile-ranking-empty {
  display: none;
  padding: 17px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.key-value-list {
  margin: 0;
}

.key-value-list > div {
  display: grid;
  grid-template-columns: minmax(130px, 0.45fr) minmax(0, 1fr);
  gap: 22px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.key-value-list > div:last-child {
  border-bottom: 0;
}

.key-value-list dt {
  color: var(--muted);
  font-size: 12px;
  font-weight: 750;
}

.key-value-list dd {
  margin: 0;
  color: var(--ink);
  font-size: 13px;
}

.schema-panel {
  max-width: 860px;
  margin: 34px auto 0;
}

.route-card {
  display: block;
  min-height: 220px;
  padding: 26px;
  text-decoration: none;
  transition: border-color 120ms ease, transform 120ms ease;
}

.route-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.route-card h2 {
  margin-top: 26px;
  font-size: 28px;
}

.route-card p {
  min-height: 70px;
  font-size: 14px;
}

.data-hub-grid,
.doc-grid,
.about-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

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

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

.filter-bar {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.filter-bar-head {
  align-items: flex-start;
  margin-bottom: 18px;
}

.filter-result {
  margin: 5px 0 0;
  font-size: 13px;
}

.filter-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.filter-grid label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.filter-grid select {
  width: 100%;
  min-height: 39px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--surface);
  color: var(--ink);
  padding: 7px 9px;
  font-size: 13px;
  letter-spacing: normal;
  text-transform: none;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.case-card {
  display: flex;
  min-height: 410px;
  flex-direction: column;
  padding: 21px;
}

.case-card h2 {
  margin: 24px 0 10px;
  font-size: 25px;
}

.case-card > p {
  min-height: 92px;
  margin-bottom: 18px;
  font-size: 13px;
}

.case-meta {
  display: grid;
  gap: 9px;
  margin: 0 0 16px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.case-meta div {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 10px;
}

.case-meta dt,
.case-meta dd {
  margin: 0;
  font-size: 11px;
}

.case-meta dt {
  color: var(--muted);
  font-weight: 750;
}

.case-meta dd {
  color: var(--ink);
}

.case-meta code,
.localized-case-locale code {
  overflow-wrap: anywhere;
  font-family: var(--mono);
  font-size: 0.92em;
}

.localized-case-locale {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.case-card .tag-list {
  min-height: 32px;
  margin-bottom: 18px;
}

.card-link {
  margin-top: auto;
  color: var(--accent-strong);
  font-size: 13px;
  font-weight: 800;
}

.filter-no-results {
  margin-top: 18px;
}

.detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  align-items: start;
  gap: 18px;
}

.detail-main,
.detail-side {
  display: grid;
  gap: 18px;
  min-width: 0;
}

.locale-breakdown-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.locale-breakdown {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-muted);
}

.locale-breakdown h3 {
  margin: 0;
  font-size: 17px;
}

.detail-section,
.panel {
  min-width: 0;
}

.detail-section h2 {
  margin-top: 7px;
  font-size: 25px;
}

.student-message {
  margin: 23px 0;
  padding: 18px;
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
}

.student-message p:last-child {
  margin: 0;
  color: var(--ink);
  font-size: 18px;
  font-weight: 650;
}

.context-copy {
  margin-top: 18px;
}

.context-copy p:last-child {
  margin-bottom: 0;
  color: var(--ink);
}

.conversation-list {
  display: grid;
  gap: 12px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.conversation-list li {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 7px;
}

.conversation-role {
  display: block;
  margin-bottom: 6px;
  color: var(--accent-strong);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.conversation-list p {
  margin: 0;
  color: var(--ink);
}

.markdown-content {
  min-width: 0;
  color: var(--ink);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.markdown-content > :first-child {
  margin-top: 0;
}

.markdown-content > :last-child {
  margin-bottom: 0;
}

.markdown-content ul,
.markdown-content ol {
  padding-left: 1.5em;
}

.markdown-content li + li {
  margin-top: 7px;
}

.markdown-content :not(pre) > code {
  overflow-wrap: anywhere;
  word-break: break-word;
}

.markdown-code-block,
.raw-text {
  max-width: 100%;
  overflow-x: auto;
  white-space: pre;
}

.markdown-code-block {
  margin: 18px 0;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--dark);
  color: #e6f2ec;
  font-size: 13px;
  line-height: 1.6;
  tab-size: 2;
}

.raw-text {
  margin: 14px 0 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface-muted);
  color: var(--ink);
  font: inherit;
  font-size: 13px;
  line-height: 1.6;
}

.audit-section .panel-heading {
  align-items: flex-start;
}

.audit-status {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  align-items: center;
  margin-top: 18px;
}

.audit-table-wrap {
  max-width: 100%;
  overflow-x: auto;
}

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

.audit-table th,
.audit-table td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  overflow-wrap: anywhere;
}

.audit-table th {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.audit-table tr:last-child td {
  border-bottom: 0;
}

.audit-evidence {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.audit-list {
  display: grid;
  gap: 12px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.audit-list li {
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 7px;
  overflow-wrap: anywhere;
}

.audit-list li > :last-child {
  margin-bottom: 0;
}

.audit-criterion {
  color: var(--ink);
  font-weight: 650;
}

.audit-raw-details {
  margin-top: 18px;
}

.matrix-contract,
.traceability,
.field-list {
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.matrix {
  display: grid;
  grid-template-columns: 1.2fr repeat(2, 1fr);
  margin-top: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 7px;
}

.matrix > * {
  min-height: 58px;
  display: flex;
  align-items: center;
  padding: 10px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-size: 12px;
}

.matrix > :nth-child(3n) {
  border-right: 0;
}

.matrix > :nth-last-child(-n + 3) {
  border-bottom: 0;
}

.matrix-head,
.matrix-corner {
  background: var(--surface-muted);
  color: var(--ink);
  font-weight: 800;
}

.matrix-cell {
  color: var(--muted);
}

.trace-line {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 9px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 750;
}

.trace-line b {
  color: var(--accent);
}

.run-grid,
.adapter-grid {
  align-items: stretch;
}

.run-aside {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.code-block {
  overflow-x: auto;
  margin: 22px 0 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--dark);
  color: #e6f2ec;
  font-size: 13px;
  line-height: 1.65;
  tab-size: 2;
}

.code-block code {
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
}

.callout {
  margin-top: 18px;
  padding: 17px;
  border-left: 3px solid var(--accent);
  background: var(--surface);
}

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

.callout p {
  margin: 5px 0 0;
  font-size: 13px;
}

.plain-list li {
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font-size: 15px;
  font-weight: 650;
}

.plain-list li::before {
  margin-right: 10px;
  color: var(--accent);
  content: "—";
}

.evaluation-flow {
  display: grid;
  max-width: 720px;
  margin: 28px auto 0;
  justify-items: center;
  gap: 12px;
}

.flow-node {
  width: min(100%, 430px);
  padding: 15px;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  background: var(--surface);
  color: var(--ink);
  text-align: center;
  font-size: 13px;
  font-weight: 750;
}

.flow-branch {
  display: grid;
  width: min(100%, 720px);
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.flow-arrow {
  color: var(--accent);
  font-size: 20px;
}

.flow-result {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.caption {
  max-width: 720px;
  margin: 24px auto 0;
  text-align: center;
  font-size: 13px;
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 28px;
}

.status-grid > div {
  padding-top: 16px;
  border-top: 1px solid var(--dark-line);
}

.status-grid strong {
  display: block;
  margin-top: 8px;
  color: var(--dark-ink);
  font-size: 14px;
}

.status-grid p {
  margin: 7px 0 0;
  font-size: 13px;
}

.status-dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--dark-muted);
}

.status-dot-positive {
  background: #8bd1be;
}

.status-dot-pending {
  background: #d2b47b;
}

.quote-section {
  max-width: 850px;
}

.quote-section blockquote {
  font-size: clamp(30px, 5vw, 56px);
}

.site-footer {
  padding: 48px 0;
  border-top: 1px solid var(--line);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 0.75fr 0.75fr;
  gap: 32px;
}

.footer-title {
  margin-bottom: 8px;
  color: var(--ink);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-grid .muted {
  margin-bottom: 0;
  font-size: 12px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

[hidden] {
  display: none !important;
}

@media (max-width: 980px) {
  .dimension-grid,
  .method-card-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

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

@media (max-width: 760px) {
  .locale-breakdown-grid {
    grid-template-columns: 1fr;
  }

  .shell {
    width: min(calc(100% - 32px), var(--shell));
  }

  .header-inner {
    min-height: 64px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: absolute;
    top: 63px;
    right: 16px;
    left: 16px;
    display: none;
    align-items: stretch;
    flex-direction: column;
    gap: 0;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    box-shadow: var(--shadow);
  }

  .nav-links[data-open="true"] {
    display: flex;
  }

  .nav-links a {
    padding: 11px 12px;
  }

  .nav-links a[aria-current="page"] {
    text-underline-offset: 3px;
  }

  .hero-section {
    padding: 65px 0 58px;
  }

  h1 {
    font-size: clamp(40px, 13vw, 62px);
  }

  .hero-lede,
  .lede {
    font-size: 17px;
  }

  .hero-grid,
  .example-grid,
  .run-grid,
  .adapter-grid,
  .developer-cta,
  .limits-grid,
  .two-column,
  .detail-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .hero-aside {
    margin-top: 0;
  }

  .section {
    padding: 60px 0;
  }

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

  .snapshot-note {
    display: block;
  }

  .snapshot-note .text-link {
    display: inline-block;
    margin-top: 12px;
  }

  .dimension-grid,
  .method-card-grid,
  .case-grid,
  .data-hub-grid,
  .doc-grid,
  .about-grid {
    grid-template-columns: 1fr;
  }

  .dimension-card,
  .method-card {
    min-height: auto;
  }

  .dimension-index {
    margin-bottom: 30px;
  }

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

  .leaderboard-table {
    display: none;
  }

  .mobile-ranking-empty {
    display: block;
  }

  .filter-bar-head,
  .split-heading,
  .panel-heading {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

@media (max-width: 480px) {
  .metric-grid,
  .filter-grid,
  .status-grid {
    grid-template-columns: 1fr;
  }

  .panel,
  .filter-bar,
  .case-card {
    padding: 18px;
  }

  .button-row {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .flow-branch {
    grid-template-columns: 1fr;
  }

  .matrix {
    font-size: 11px;
  }
}

/* Reference-led homepage: scoped tokens keep the existing explorer intact. */
.home-page {
  --bg: #fafbf8; --surface: #ffffff; --surface-muted: #f0f4f4;
  --ink: #09222c; --muted: #526581; --line: #dce6e1;
  --accent: #064f4c; --accent-soft: #e7f5ee; --line-strong: #a4beba;
  --shell: 1248px; --serif: Georgia, 'Times New Roman', serif;
  color-scheme: light; background: var(--bg); position: relative; isolation: isolate;
  font-family: Arial, 'Segoe UI', sans-serif;
}
.home-page [hidden] { display: none !important; }
.home-page .site-icon { width: 20px; height: 20px; flex: 0 0 auto; vertical-align: middle; }
.home-page .eyebrow { color: var(--accent); font: 600 10px/1.6 ui-monospace, monospace; letter-spacing: .24em; }
.home-page h1, .home-page h2, .home-page h3 { font-family: var(--serif); font-weight: 400; }
.home-header { position: relative; background: transparent; border: 0; backdrop-filter: none; }
.home-header .header-inner { min-height: 88px; gap: 28px; }
.home-header .wordmark { align-items: flex-start; color: var(--accent); }
.home-header .wordmark-mark { margin-top: 4px; }
.home-header .wordmark-name { font: 30px/1.1 var(--serif); letter-spacing: -.05em; }
.home-header .wordmark-descriptor { margin-top: 5px; text-transform: uppercase; font: 600 8px/1.6 ui-monospace, monospace; letter-spacing: .2em; }
.home-header .nav-links { gap: 32px; font-size: 11px; font-weight: 400; }
.home-header .nav-links a[aria-current] { color: var(--accent); font-weight: 600; }
.home-header-tools, .theme-controls { display: flex; align-items: center; gap: 18px; }
.theme-controls { gap: 2px; padding: 4px; border-radius: 24px; background: var(--surface); box-shadow: 0 2px 16px #173d3210; }
.theme-controls button, .case-controls button { display: inline-flex; align-items: center; justify-content: center; background: transparent; color: var(--accent); border: 0; width: 29px; height: 29px; padding: 4px; border-radius: 50%; }
.theme-controls button[aria-pressed=true] { background: var(--accent-soft); }
.home-page .button { min-height: 46px; padding: 10px 20px; border-radius: 5px; font: 16px/1.4 var(--serif); gap: 14px; display: inline-flex; align-items: center; justify-content: center; white-space: nowrap; }
.home-page .button-primary { background: #06534f; border: 1px solid #06534f; color: #fff; }
.home-page .button-secondary { color: var(--accent); border: 1px solid #5b8587; background: transparent; }
.home-header .button { min-height: 40px; padding: 8px 21px; }
.home-page a { text-decoration: none; }
.home-page a:hover { color: var(--accent); }
.home-page .button-primary:hover { color: #fff; background: #103f3c; }
.home-hero { padding: 8px 0 19px; }
.home-hero-grid { display: grid; grid-template-columns: .96fr 1fr; gap: 56px; align-items: center; padding: 0 24px; }
.home-thesis .eyebrow { margin: 4px 0 10px; }
.home-thesis h1 { margin: 0 0 15px; font-size: clamp(38px,3.88vw,56px); line-height: .99; letter-spacing: -.055em; }
.home-thesis h1 em { font-style: italic; color: var(--accent); font-weight: 400; }
.home-thesis h1>span { color: #073b3e; white-space: nowrap; }
.home-lede { max-width: 465px; margin: 0 0 22px; color: var(--muted); font: 17px/1.35 var(--serif); letter-spacing: .005em; }
.home-actions { display: flex; flex-wrap: wrap; gap: 16px; }
.home-features { display: flex; gap: 16px; margin-top: 25px; color: var(--muted); font-size: 11px; }
.home-features>span { display: inline-flex; gap: 10px; align-items: center; }
.home-features>span+span { border-left: 1px solid var(--line-strong); padding-left: 15px; }
.home-features .site-icon { color: var(--accent); }
.case-walkthrough { position: relative; min-width: 0; background: color-mix(in srgb,var(--surface) 90%,transparent); border: 1px solid #fff6; border-radius: 12px; padding: 22px 28px 20px; box-shadow: 0 15px 45px #174d3a0c; }
.walkthrough-meta { display: flex; justify-content: space-between; gap: 12px; align-items: center; min-height: 24px; }
.case-total { color: var(--muted); margin-left: 8px; }
.case-badge { font: 600 9px/1.5 ui-monospace,monospace; color: #50697b; text-transform: uppercase; letter-spacing: .1em; background: var(--surface-muted); border-radius: 3px; padding: 3px 6px; max-width: 47%; text-align: right; }
.case-controls { position: absolute; top: 21px; left: 151px; display: flex; gap: 5px; z-index: 1; }
.home-page .walkthrough-title { font-size: 30px; line-height: 1.1; letter-spacing: -.05em; margin: 13px 0 16px; min-height: 33px; }
.walkthrough-tabs { display: flex; border-bottom: 1px solid var(--line); gap: 9px; margin-bottom: 12px; }
.walkthrough-tabs button { border: 0; background: transparent; color: var(--muted); font-size: 13px; padding: 8px 14px 10px; position: relative; border-radius: 5px 5px 0 0; }
.walkthrough-tabs button[aria-selected=true] { color: var(--accent); background: var(--surface-muted); }
.walkthrough-tabs button[aria-selected=true]::after { content: ''; position: absolute; left: 0; right: 0; bottom: -1px; border-bottom: 1px solid var(--accent); }
.walkthrough-body { display: grid; grid-template-columns: 1fr 1.05fr; gap: 15px; align-items: start; }
.walkthrough-content { min-width: 0; height: 195px; overflow-y: auto; scrollbar-width: thin; }
.walkthrough-content [role=tabpanel] { min-height: 100%; }
.learner-message { margin: 0 0 12px; padding: 14px; border-radius: 6px; background: var(--surface-muted); color: var(--muted); font: 13px/1.5 Arial,sans-serif; }
.tutor-objective { padding: 12px 14px; background: var(--accent-soft); color: var(--accent); border-radius: 6px; font-size: 11px; line-height: 1.55; }
.tutor-objective p { margin: 7px 0 0; }
.tutor-objective a { display: inline-block; margin-top: 12px; text-decoration: underline; }
.micro-label { font: 600 9px/1.5 ui-monospace,monospace; text-transform: uppercase; letter-spacing: .13em; color: var(--accent); }
.rubric-preview { border: 1px solid var(--line); border-radius: 7px; padding: 10px 12px; box-shadow: 0 3px 12px #133b2904; }
.rubric-preview>.micro-label { margin: 0 0 10px; }
.rubric-row { display: grid; grid-template-columns: 80px 1fr 30px; gap: 8px; align-items: center; margin: 8px 0; font: 13px/1.5 var(--serif); }
.score-track { display: block; height: 8px; border-radius: 8px; background: var(--surface-muted); }
.score-pending { font: 9px/1.6 ui-monospace,monospace; color: var(--muted); background: var(--surface-muted); padding: 1px 4px; border-radius: 3px; }
.score-caption { color: var(--muted); font-size: 10px; margin: 9px 0 0; }
.walkthrough-bottom { display: flex; justify-content: space-between; gap: 10px; margin-top: 15px; font-size: 11px; color: var(--accent); }
.case-open, .walkthrough-status { display: inline-flex; align-items: center; gap: 8px; padding: 10px; border: 1px solid var(--line); border-radius: 6px; }
.walkthrough-status { background: var(--accent-soft); border-color: transparent; }
.walkthrough-bottom .site-icon { width: 15px; height: 15px; }
.home-dimensions { padding: 30px 0 27px; border-top: 1px solid var(--line); }
.dimension-layout { display: grid; grid-template-columns: 320px minmax(0,1fr); gap: 64px; }
.dimension-intro .eyebrow { margin: 5px 0 10px; }
.dimension-intro h2 { font-size: 47px; line-height: 1; letter-spacing: -.045em; margin: 0 0 14px; }
.dimension-intro h2 em { color: var(--accent); }
.dimension-intro>p:not(.eyebrow) { color: var(--muted); font-size: 13px; line-height: 1.5; margin: 0 0 18px; max-width: 315px; }
.home-page .text-link { color: var(--accent); font: 15px/1.5 var(--serif); }
.text-link .site-icon { margin-left: 8px; width: 16px; }
.dimension-explorer { min-width: 0; padding-top: 0; }
.dimension-detail-row { display: flex; position: relative; height: 126px; align-items: flex-start; }
.dimension-details { width: 310px; flex-shrink: 0; position: relative; }
.dimension-detail { display: flex; align-items: center; gap: 20px; padding: 12px 20px; border: 1px solid var(--line); border-radius: 9px; background: color-mix(in srgb,var(--surface) 90%,transparent); box-shadow: 0 8px 22px #224e3910; min-height: 108px; position: relative; }
.dimension-detail::after { content:''; position: absolute; bottom: -7px; left: 48px; width: 12px; height: 12px; transform: rotate(45deg); background: var(--surface); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.dimension-detail .dimension-disc { width: 58px; height: 58px; flex-shrink: 0; }
.dimension-detail h3 { font-size: 18px; line-height: 1.2; margin: 0 0 4px; letter-spacing: -.03em; }
.dimension-detail p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.4; }
.dimension-progress { display: flex; gap: 12px; align-items: center; margin-top: 8px; }
.dimension-progress>span { height: 7px; flex: 1; background: var(--surface-muted); border-radius: 6px; }
.dimension-progress i { display: block; width: var(--step); height: 100%; border-radius: inherit; background: #539f88; }
.dimension-progress small { color: var(--accent); font-size: 9px; }
.handwritten { color: var(--accent); font: italic 15px/1.15 'Segoe Print', cursive; transform: rotate(-8deg); }
.dimension-note { margin: 7px 0 0 100px; position: relative; }
.dimension-note svg { position: absolute; width: 65px; height: 35px; left: -73px; top: 20px; }
.dimension-arrows { display: flex; gap: 26px; margin-left: auto; align-self: center; }
.round-control { display: inline-flex; justify-content: center; align-items: center; width: 48px; height: 48px; border-radius: 50%; border: 1px solid var(--line-strong); color: var(--accent); background: transparent; }
.dimension-path { position: relative; }
.path-line { position: absolute; top: -7px; left: 0; width: 100%; height: 70px; pointer-events: none; }
.dimension-nodes { position: relative; display: grid; grid-template-columns: repeat(5,1fr); gap: 12px; }
.dimension-node { color: var(--ink); border: 0; background: transparent; display: flex; flex-direction: column; align-items: center; padding: 0 3px; min-width: 0; }
.dimension-disc { width: 54px; height: 54px; border-radius: 50%; border: 1px solid #fff; outline: 1px solid var(--line); background: #dcf2e9; color: #074e4c; display: inline-flex; align-items: center; justify-content: center; box-shadow: 0 4px 14px #285e3110; }
.dimension-disc .site-icon { width: 27px; height: 27px; }
.dimension-node:nth-child(n+4) .dimension-disc { background: #f0eccf; color: #364326; }
.dimension-node[aria-pressed=true] .dimension-disc { color: white; background: #4b9f87; box-shadow: 0 0 0 10px #b7e8cd33,0 0 0 21px #b7e8cd22,0 0 60px #b7e8cd55; outline: 1px solid #74c9a4; outline-offset: 7px; }
.dimension-number { font: 10px/1.5 ui-monospace,monospace; color: var(--muted); margin-top: 12px; letter-spacing: .1em; }
.dimension-node strong { font: 17px/1.4 var(--serif); letter-spacing: -.03em; }
.dimension-summary { font-size: 12px; line-height: 1.5; color: var(--muted); max-width: 130px; margin-top: 4px; }
.home-data { background: linear-gradient(110deg,#173e3b,#0b3534); color: #f3f7f1; padding: 20px 0 10px; }
.home-data-grid { display: grid; grid-template-columns: 390px 1fr; gap: 42px; align-items: end; padding-left: 130px; }
.home-data .eyebrow { color: #d8e8e0; font-size: 8px; letter-spacing: .19em; margin-bottom: 10px; }
.home-data h2 { color: #f3f7f1; font-size: 29px; line-height: 1.12; margin: 0; letter-spacing: -.02em; }
.home-data-statement { min-width: 0; }
.home-facts { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); margin: 0; gap: 0; }
.home-facts>div { border-left: 1px solid #79999277; padding: 0 20px; }
.home-facts dd { font: 29px/1.2 var(--serif); margin: 0 0 6px; white-space: nowrap; }
.home-facts dt { font: 14px/1.4 var(--serif); }
.home-facts .fact-note { font-size: 11px; line-height: 1.6; color: #c0d4cf; margin: 5px 0 0; overflow-wrap: anywhere; }
.home-evidence { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 20px; font-size: 10px; color: #c0d4cf; margin: 18px 0 16px; padding-left: 130px; }
.home-evidence>a { margin-left: auto; display: inline-flex; align-items: center; gap: 8px; color: #073e3d; background: #edf5ee; padding: 7px 14px; border-radius: 4px; }
.home-evidence details { width: 100%; font-size: 10px; }
.home-evidence summary { cursor: pointer; width: fit-content; }
.home-evidence details p { max-width: 920px; }
.home-footer { display: flex; align-items: center; gap: 16px; border-top: 1px solid #79999288; padding-top: 13px; font-size: 11px; color: #bed0cb; }
.home-footer-brand { display: inline-flex; align-items: center; gap: 8px; font: 19px/1.2 var(--serif); color: #fff; }
.home-footer nav { margin-left: auto; display: flex; gap: 20px; }
.home-footer nav a+a { padding-left: 20px; border-left: 1px solid #79999255; }
.home-data a:hover { color: white; text-decoration: underline; }
.home-evidence>a:hover { color: #073e3d; }
.home-page button, .home-page a, .dimension-disc, .dimension-progress i { transition: background-color .2s,color .2s,box-shadow .2s,transform .2s,width .3s; }
.home-page .button:hover, .round-control:hover { transform: translateY(-2px); }
.home-page .reveal-ready { opacity: 0; transform: translateY(9px); transition: opacity .5s,transform .5s; }
.home-page .reveal-ready.is-visible { opacity: 1; transform: none; }
.home-page[data-theme=dark] { --bg:#102421; --surface:#18322e; --surface-muted:#233e38; --ink:#eff7f0; --muted:#b7ccc6; --line:#35544c; --accent:#afe0cf; --accent-soft:#22473c; --line-strong:#52796d; background-image:none; color-scheme:dark; }
.home-page[data-theme=dark] .home-thesis h1>span { color: #d5eee5; }
.home-page[data-theme=dark] .case-badge { color:var(--muted); }
.home-page[data-theme=dark] .case-walkthrough { border-color:var(--line); }
@media (min-width: 1200px) {
  .home-hero-grid { min-height: 407px; }
  .home-data-grid { grid-template-columns: 360px 1fr; gap: 0; }
}
@media (max-width: 1200px) {
  .home-header .nav-links { gap: 18px; }
  .home-header-tools { gap: 10px; }
  .home-hero-grid { gap: 30px; padding: 0; }
  .home-page .button { font-size: 14px; padding: 10px 14px; }
  .case-walkthrough { padding: 18px; }
  .case-controls { top: 17px; left: 136px; }
  .dimension-layout { gap: 30px; grid-template-columns: 280px minmax(0,1fr); }
  .dimension-note { display: none; }
  .dimension-arrows { gap: 10px; }
  .home-data-grid { padding-left: 0; grid-template-columns: 290px 1fr; gap: 20px; }
  .home-evidence { padding-left: 0; }
  .home-facts>div { padding: 0 14px; }
}
@media (max-width: 1000px) {
  .home-header .header-inner { flex-wrap: wrap; gap: 15px; padding: 16px 0; }
  .home-header .nav-links { display: flex; position: static; order: 3; width: 100%; justify-content: center; background: transparent; border: 0; padding: 0; }
  .home-header .nav-toggle { display: none; }
  .home-header-tools { margin-left: auto; }
  .home-hero-grid { grid-template-columns: 1fr 1fr; gap: 22px; }
  .home-thesis h1 { font-size: 35px; }
  .home-lede { font-size: 15px; }
  .home-features { flex-wrap: wrap; gap: 10px; }
  .home-features>span+span { padding-left: 0; border: 0; }
  .walkthrough-body { grid-template-columns: 1fr; }
  .walkthrough-content { height: 135px; }
  .rubric-preview { display: block; }
  .walkthrough-bottom { flex-wrap: wrap; }
  .home-page .walkthrough-title { font-size: 25px; }
  .case-badge { font-size: 8px; max-width: 40%; }
  .case-controls { left: 124px; gap: 0; }
  .walkthrough-tabs { gap: 0; }
  .walkthrough-tabs button { font-size: 12px; padding: 8px 10px; }
  .dimension-layout { grid-template-columns: 240px minmax(0,1fr); gap: 24px; }
  .dimension-intro h2 { font-size: 38px; }
  .dimension-detail-row { height: 146px; }
  .dimension-details { width: 275px; }
  .dimension-detail { padding: 12px; gap: 12px; }
  .dimension-arrows { flex-direction: column; gap: 8px; }
  .round-control { width: 35px; height: 35px; }
  .dimension-summary { font-size: 10px; }
  .dimension-node strong { font-size: 14px; }
  .home-data-grid { grid-template-columns: 1fr; gap: 25px; }
  .home-data-statement { display: flex; justify-content: space-between; align-items: center; }
  .home-data-statement h2 { font-size: 27px; }
}
@media (max-width: 700px) {
  .home-page { background-size: auto 1000px; }
  .home-page .shell { width: calc(100% - 36px); }
  .home-header .wordmark-name { font-size: 26px; }
  .home-header .wordmark-descriptor { font-size: 6px; }
  .home-header .nav-toggle { display: block; margin-left: auto; font-size: 12px; }
  .home-header .header-inner { gap: 12px; }
  .home-header-tools { order: 4; width: 100%; justify-content: flex-end; }
  .home-header-tools .button { min-height: 35px; }
  .home-header .nav-links { display: none; flex-wrap: wrap; gap: 12px 24px; padding: 12px 0; }
  .home-header .nav-links[data-open=true] { display: flex; }
  .home-hero { padding: 20px 0 32px; }
  .home-hero-grid { grid-template-columns: minmax(0,1fr); gap: 28px; }
  .home-thesis h1 { font-size: clamp(33px,8.1vw,54px); line-height: 1.04; }
  .home-thesis h1>span { white-space: normal; }
  .home-lede { font-size: 16px; }
  .home-actions { gap: 10px; }
  .home-page .button { font-size: 14px; }
  .home-features { font-size: 10px; justify-content: space-between; gap: 8px; margin-top: 22px; }
  .home-features>span { gap: 6px; }
  .home-features .site-icon { width: 16px; height: 16px; }
  .case-walkthrough { padding: 18px 16px; }
  .case-controls { left: 129px; }
  .walkthrough-body { grid-template-columns: 1fr; gap: 14px; }
  .walkthrough-content { height: auto; max-height: 230px; }
  .rubric-preview { display: block; }
  .rubric-row { grid-template-columns: 90px 1fr 30px; }
  .walkthrough-bottom { font-size: 10px; gap: 6px; }
  .case-open,.walkthrough-status { padding: 8px; gap: 5px; }
  .dimension-layout { grid-template-columns: minmax(0,1fr); gap: 28px; }
  .dimension-intro h2 { font-size: 43px; }
  .dimension-intro>p:not(.eyebrow) { max-width: 100%; font-size: 14px; }
  .dimension-detail-row { height: 133px; }
  .dimension-details { width: calc(100% - 56px); max-width: 360px; }
  .dimension-detail { min-height: 110px; }
  .dimension-path { overflow-x: auto; padding: 24px 0 12px; margin-top: -20px; }
  .dimension-nodes { min-width: 560px; gap: 5px; }
  .path-line { width: 560px; top: 18px; }
  .dimension-summary { font-size: 11px; }
  .dimension-node strong { font-size: 16px; }
  .home-data { padding-top: 28px; }
  .home-data-statement { display: block; }
  .home-data-statement h2 { font-size: 31px; }
  .home-facts { grid-template-columns: 1fr 1fr; gap: 25px 0; }
  .home-facts>div { padding-left: 15px; }
  .home-facts dd { font-size: 27px; }
  .home-evidence { display: grid; gap: 15px; font-size: 10px; }
  .home-evidence>a { margin: 0; justify-self: start; }
  .home-footer { flex-wrap: wrap; gap: 12px; }
  .home-footer nav { width: 100%; margin: 0; gap: 12px; }
  .home-footer nav a+a { padding-left: 12px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .home-page *, .home-page *::before, .home-page *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .home-page .reveal-ready { opacity: 1; transform: none; }
  .home-page .button:hover,.home-page .round-control:hover { transform: none; }
}
.home-page::before { content: ''; position: absolute; z-index: -1; inset: 0 0 auto; height: 1000px; background: url('./foliage.png') center top / 100% 100% no-repeat; mask-image: linear-gradient(to right, #000, #0000 9%, #0000 91%, #000); pointer-events: none; }
.home-page[data-theme=dark]::before { opacity: .12; }
.home-data { position: relative; isolation: isolate; }
.home-data::before { content:''; position: absolute; z-index: -1; inset: 0 auto 0 0; width: 210px; background: url('./foliage.png') left bottom / 1448px 1024px; mix-blend-mode: luminosity; opacity: .24; mask-image: linear-gradient(to right,#000,#0000); pointer-events:none; }
@media (max-width:700px) { .home-page::before { opacity:.5; } .home-data::before { width:80px; } }
/* Keep the desktop composition within the reference's three-section rhythm. */
@media (min-width:1001px) {
  .home-hero-grid { grid-template-columns: .94fr 1fr; gap: 52px; padding: 0 24px; }
  .home-lede { font-size: 17px; max-width: 475px; }
  .case-walkthrough { padding: 20px 28px 18px; }
  .home-page .walkthrough-title { margin: 8px 0 12px; }
  .walkthrough-tabs { margin-bottom: 10px; }
  .walkthrough-content { height: 185px; }
  .rubric-row { margin: 6px 0; }
  .home-evidence details { width:auto; }
  .home-evidence details[open] { width:100%; }
  .home-evidence { margin-top: 8px; margin-bottom: 8px; }
}
@keyframes dimension-progress { from { width: 0; } to { width: var(--step); } }
@media (prefers-reduced-motion: no-preference) {
  .dimension-detail:not([hidden]) .dimension-progress i { animation: dimension-progress .25s ease-out; }
}
@media (min-width:1200px) {
  .home-hero-grid { width: 1152px; max-width: calc(100% - 96px); position: relative; left: -24px; padding: 0; grid-template-columns: .86fr 1fr; gap: 56px; }
}
.home-facts .fact-note { font-family: Arial, 'Segoe UI', sans-serif; white-space: normal; }