:root {
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-surface-soft: #f1f5f9;
  --color-text: #0f172a;
  --color-text-secondary: #475569;
  --color-text-muted: #64748b;
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-navy: #102a43;
  --color-cyan: #0891b2;
  --color-border: #dbe4ef;
  --color-success: #15803d;
  --color-warning: #b45309;
  --radius-sm: 6px;
  --radius-md: 8px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 12px 30px rgba(15, 23, 42, 0.08);
  --container-width: 1160px;
  --nav-height: 68px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
}

body.menu-open {
  overflow: hidden;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 100;
  padding: 10px 14px;
  background: var(--color-text);
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  transform: translateY(-150%);
}

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

.noscript-navigation {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.noscript-navigation .container {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  padding-block: 12px;
}

.noscript-navigation a {
  color: var(--color-text-secondary);
  font-size: 14px;
  font-weight: 650;
}

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

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

button,
input {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid rgba(37, 99, 235, 0.35);
  outline-offset: 3px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: min(calc(100% - 40px), var(--container-width));
  margin-inline: auto;
}

.narrow {
  width: min(calc(100% - 40px), 820px);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  min-height: var(--nav-height);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(12px);
}

.site-nav {
  min-height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--color-text);
  font-size: 17px;
  font-weight: 750;
  line-height: 1;
  white-space: nowrap;
}

.brand-mark {
  width: 30px;
  height: 30px;
  display: grid;
  align-content: center;
  gap: 4px;
  padding: 6px;
  background: var(--color-navy);
  border-radius: var(--radius-sm);
}

.brand-mark i {
  display: block;
  height: 2px;
  background: #fff;
  border-radius: 1px;
  transform-origin: center;
}

.brand-mark i:first-child {
  transform: rotate(8deg);
}

.brand-mark i:nth-child(2) {
  width: 75%;
  margin-left: auto;
}

.brand-mark i:last-child {
  transform: rotate(-8deg);
}

.primary-navigation {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  position: relative;
  padding: 10px 11px;
  color: var(--color-text-secondary);
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
}

.nav-link::after {
  content: "";
  position: absolute;
  right: 11px;
  bottom: 3px;
  left: 11px;
  height: 2px;
  background: var(--color-primary);
  opacity: 0;
  transform: scaleX(0.5);
  transition: opacity 160ms ease, transform 160ms ease;
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--color-text);
}

.nav-link.is-active::after {
  opacity: 1;
  transform: scaleX(1);
}

.nav-github {
  margin-left: 10px;
}

.menu-button {
  width: 42px;
  height: 42px;
  display: none;
  place-content: center;
  gap: 5px;
  padding: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.menu-button > span:not(.sr-only) {
  width: 18px;
  height: 2px;
  display: block;
  background: var(--color-text);
}

.button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.2;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.button:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}

.button-secondary {
  background: var(--color-navy);
}

.button-secondary:hover {
  background: #071d31;
}

.button-outline {
  background: var(--color-surface);
  border-color: var(--color-border);
  color: var(--color-text);
}

.button-outline:hover {
  background: var(--color-surface-soft);
  border-color: #bfcee0;
  color: var(--color-text);
}

.button-small {
  min-height: 38px;
  padding: 8px 13px;
  font-size: 14px;
}

.button-light {
  background: #fff;
  color: var(--color-navy);
}

.button-light:hover {
  background: #eef6ff;
}

.button-ghost-light {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.38);
  color: #fff;
}

.button-ghost-light:hover {
  background: rgba(255, 255, 255, 0.08);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--color-primary-dark);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.09em;
  line-height: 1.4;
  text-transform: uppercase;
}

.hero {
  position: relative;
  min-height: min(720px, calc(100vh - var(--nav-height)));
  display: grid;
  align-items: center;
  overflow: hidden;
  background-color: #fff;
  background-image: url("../images/benchmark-signal.jpg");
  background-position: center;
  background-size: cover;
  border-bottom: 1px solid var(--color-border);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.78);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  padding-block: 96px;
}

.hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--color-navy);
}

.hero .eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--color-primary);
}

.hero h1 {
  margin: 0;
  color: var(--color-text);
  font-size: clamp(42px, 6vw, 68px);
  font-weight: 800;
  letter-spacing: 0;
  line-height: 1.02;
}

.hero-title-detail {
  max-width: 740px;
  margin: 22px 0 0;
  color: var(--color-navy);
  font-size: clamp(24px, 3vw, 38px);
  font-weight: 650;
  line-height: 1.2;
}

.hero-description {
  max-width: 680px;
  margin: 24px 0 0;
  color: #334e68;
  font-size: 18px;
  line-height: 1.65;
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.hero-note {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 28px 0 0;
  color: var(--color-text-muted);
  font-size: 14px;
  font-weight: 600;
}

.hero-note::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--color-warning);
  border-radius: 50%;
}

.section {
  padding-block: 88px;
}

.section-white {
  background: var(--color-surface);
}

.section-soft {
  background: var(--color-surface-soft);
}

.section-header {
  max-width: 720px;
  margin-bottom: 40px;
}

.section-header.centered {
  margin-inline: auto;
  text-align: center;
}

.section-header h2,
.split-intro h2,
.cta-band h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 760;
  line-height: 1.18;
}

.section-header p,
.split-intro p {
  margin: 15px 0 0;
  color: var(--color-text-secondary);
  font-size: 17px;
}

.mission-band {
  padding-block: 46px;
  background: var(--color-navy);
  color: #fff;
}

.mission-grid {
  display: grid;
  grid-template-columns: 1.45fr repeat(3, 0.55fr);
  align-items: center;
  gap: 42px;
}

.mission-copy {
  margin: 0;
  color: #d7e7f7;
  font-size: 17px;
  line-height: 1.6;
}

.stat {
  padding-left: 24px;
  border-left: 1px solid rgba(255, 255, 255, 0.18);
}

.stat strong {
  display: block;
  font-size: 27px;
  line-height: 1.1;
}

.stat span {
  display: block;
  margin-top: 6px;
  color: #a9c4dc;
  font-size: 13px;
}

.split-intro {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 80px;
  align-items: start;
}

.problem-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--color-border);
}

.problem-list li {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 16px;
  padding-block: 20px;
  border-bottom: 1px solid var(--color-border);
}

.problem-index {
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 800;
}

.problem-list strong {
  display: block;
  margin-bottom: 4px;
  font-size: 17px;
}

.problem-list p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 15px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.card {
  min-width: 0;
  padding: 26px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.card:hover {
  border-color: #b7c8dc;
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-number {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  margin-bottom: 24px;
  background: #eaf2ff;
  border: 1px solid #d4e4ff;
  border-radius: var(--radius-sm);
  color: var(--color-primary-dark);
  font-size: 12px;
  font-weight: 800;
}

.card h3 {
  margin: 0;
  font-size: 19px;
  font-weight: 750;
  line-height: 1.3;
}

.card > p {
  margin: 10px 0 0;
  color: var(--color-text-secondary);
  font-size: 15px;
}

.card-meta {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--color-border);
}

.meta-label {
  display: block;
  margin-bottom: 5px;
  color: var(--color-text-muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.card-meta p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 14px;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 3px 8px;
  border-radius: 999px;
  background: #e9eef5;
  color: #526276;
  font-size: 11px;
  font-weight: 750;
  line-height: 1;
  white-space: nowrap;
}

.badge-blue {
  background: #e7f0ff;
  color: #1e5ab6;
}

.badge-green {
  background: #e7f6ec;
  color: var(--color-success);
}

.badge-amber {
  background: #fff1da;
  color: var(--color-warning);
}

.badge-dark {
  background: var(--color-navy);
  color: #fff;
}

.workflow {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.workflow-step {
  position: relative;
  min-width: 0;
  padding: 26px 18px 28px 0;
}

.workflow-step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 31px;
  right: 12px;
  width: 28px;
  height: 1px;
  background: #a9bad0;
}

.workflow-step strong {
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  margin-bottom: 16px;
  border: 1px solid #a9bad0;
  border-radius: 50%;
  color: var(--color-primary-dark);
  font-size: 11px;
}

.workflow-step span {
  display: block;
  color: var(--color-text-secondary);
  font-size: 13px;
  font-weight: 650;
  line-height: 1.45;
}

.roadmap {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--color-border);
}

.roadmap-item {
  position: relative;
  padding: 30px 28px 0 0;
}

.roadmap-item::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 9px;
  height: 9px;
  background: var(--color-surface);
  border: 2px solid var(--color-primary);
  border-radius: 50%;
}

.roadmap-item:not(:last-child) {
  border-right: 1px solid var(--color-border);
  margin-right: 28px;
}

.roadmap-item .badge {
  margin-bottom: 14px;
}

.roadmap-item h3 {
  margin: 0;
  font-size: 18px;
}

.roadmap-item p {
  margin: 8px 0 0;
  color: var(--color-text-secondary);
  font-size: 14px;
}

.cta-band {
  padding-block: 64px;
  background: var(--color-primary-dark);
  color: #fff;
}

.cta-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  align-items: center;
  gap: 60px;
}

.cta-band h2 {
  max-width: 700px;
}

.cta-band p {
  max-width: 680px;
  margin: 14px 0 0;
  color: #dbeafe;
}

.cta-band .eyebrow {
  color: #bfdbfe;
}

.error-page {
  min-height: calc(100vh - var(--nav-height));
  display: grid;
  place-items: center;
  padding-block: 80px;
  background: var(--color-surface);
  text-align: center;
}

.error-page h1 {
  margin: 0;
  font-size: clamp(72px, 14vw, 132px);
  line-height: 0.9;
}

.error-page h2 {
  margin: 24px 0 0;
  font-size: clamp(26px, 4vw, 38px);
}

.error-page p {
  max-width: 560px;
  margin: 14px auto 28px;
  color: var(--color-text-secondary);
}

.cta-actions {
  justify-content: flex-end;
  margin: 0;
}

.page-hero {
  padding-block: 82px 70px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.page-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(260px, 0.5fr);
  gap: 80px;
  align-items: end;
}

.page-hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(38px, 5vw, 54px);
  font-weight: 800;
  line-height: 1.08;
}

.page-hero-description {
  max-width: 760px;
  margin: 20px 0 0;
  color: var(--color-text-secondary);
  font-size: 18px;
}

.page-status {
  padding-left: 24px;
  border-left: 2px solid var(--color-primary);
}

.page-status .badge {
  margin-bottom: 10px;
}

.page-status p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 14px;
}

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

.track-card {
  min-width: 0;
  display: flex;
  flex-direction: column;
  padding: 28px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.track-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.track-card h2,
.track-card h3 {
  margin: 0;
  font-size: 21px;
  line-height: 1.3;
}

.track-question {
  margin: 14px 0 0;
  color: var(--color-navy);
  font-size: 17px;
  font-weight: 650;
  line-height: 1.5;
}

.track-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}

.track-detail p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 14px;
}

.full-span {
  grid-column: 1 / -1;
}

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

.policy-item {
  min-width: 0;
  padding: 26px 22px;
  background: var(--color-surface);
}

.policy-item .badge {
  margin-bottom: 18px;
}

.policy-item h3 {
  margin: 0;
  font-size: 17px;
}

.policy-item p {
  margin: 9px 0 0;
  color: var(--color-text-secondary);
  font-size: 14px;
}

.metadata-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--color-border);
  border-left: 1px solid var(--color-border);
}

.metadata-list li {
  padding: 20px 22px;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  font-size: 14px;
  font-weight: 650;
}

.metadata-list li::before {
  content: "";
  width: 7px;
  height: 7px;
  display: inline-block;
  margin-right: 10px;
  background: var(--color-cyan);
  border-radius: 50%;
}

.table-note {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.table-note p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 14px;
}

.table-scroll {
  overflow-x: auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.leaderboard-table {
  width: 100%;
  min-width: 980px;
  border-collapse: collapse;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}

.leaderboard-table th,
.leaderboard-table td {
  padding: 16px 18px;
  border-bottom: 1px solid var(--color-border);
  text-align: right;
  white-space: nowrap;
}

.leaderboard-table th:first-child,
.leaderboard-table td:first-child,
.leaderboard-table th:nth-child(2),
.leaderboard-table td:nth-child(2) {
  text-align: left;
}

.leaderboard-table th {
  background: var(--color-surface-soft);
  color: var(--color-text-muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

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

.leaderboard-table tbody tr:hover {
  background: #f8fbff;
}

.placeholder-value {
  color: #9aabba;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.metric-item {
  padding: 20px;
  background: var(--color-surface);
  border-left: 3px solid var(--color-primary);
}

.metric-item strong {
  display: block;
  font-size: 15px;
}

.metric-item span {
  display: block;
  margin-top: 5px;
  color: var(--color-text-muted);
  font-size: 13px;
}

.docs-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 72px;
  align-items: start;
}

.docs-nav {
  position: sticky;
  top: calc(var(--nav-height) + 28px);
  display: grid;
  gap: 2px;
}

.docs-nav p {
  margin: 0 0 10px;
  color: var(--color-text-muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.docs-nav a {
  padding: 7px 10px;
  border-left: 2px solid var(--color-border);
  color: var(--color-text-secondary);
  font-size: 14px;
}

.docs-nav a:hover {
  border-color: var(--color-primary);
  color: var(--color-text);
}

.docs-content {
  min-width: 0;
}

.docs-section {
  padding-bottom: 54px;
  scroll-margin-top: calc(var(--nav-height) + 28px);
}

.docs-section + .docs-section {
  padding-top: 54px;
  border-top: 1px solid var(--color-border);
}

.docs-section h2 {
  margin: 0;
  font-size: 27px;
  line-height: 1.25;
}

.docs-section > p {
  color: var(--color-text-secondary);
}

.docs-section h3 {
  margin: 28px 0 8px;
  font-size: 18px;
}

.docs-section ul,
.docs-section ol {
  padding-left: 22px;
  color: var(--color-text-secondary);
}

.docs-section li + li {
  margin-top: 8px;
}

.docs-flow {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: docs-step;
  border-top: 1px solid var(--color-border);
}

.docs-flow li {
  counter-increment: docs-step;
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  padding-block: 15px;
  border-bottom: 1px solid var(--color-border);
}

.docs-flow li::before {
  content: counter(docs-step, decimal-leading-zero);
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 800;
}

.notice {
  margin: 24px 0;
  padding: 18px 20px;
  background: #eef6ff;
  border-left: 3px solid var(--color-primary);
  color: #27496d;
  font-size: 14px;
}

.principles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px 40px;
}

.principle {
  padding-top: 18px;
  border-top: 2px solid var(--color-border);
}

.principle strong {
  display: block;
  font-size: 17px;
}

.principle p {
  margin: 7px 0 0;
  color: var(--color-text-secondary);
  font-size: 14px;
}

.contact-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  overflow: hidden;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.contact-item {
  padding: 28px;
  background: var(--color-surface);
}

.contact-item h3 {
  margin: 0;
  font-size: 17px;
}

.contact-item p {
  margin: 8px 0 0;
  color: var(--color-text-secondary);
  font-size: 14px;
}

.contact-item a {
  display: inline-block;
  margin-top: 14px;
  color: var(--color-primary-dark);
  font-weight: 700;
}

.site-footer {
  padding-top: 66px;
  background: #091e32;
  color: #d7e7f7;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 0.7fr);
  gap: 54px;
}

.brand-footer {
  color: #fff;
}

.brand-footer .brand-mark {
  background: var(--color-primary);
}

.footer-intro p {
  max-width: 380px;
  margin: 18px 0 0;
  color: #9fbbd1;
  font-size: 14px;
}

.footer-column {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 9px;
  font-size: 13px;
}

.footer-column a,
.footer-column span {
  color: #a9c4dc;
}

.footer-column a:hover {
  color: #fff;
}

.footer-heading {
  margin: 0 0 5px;
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 54px;
  padding-block: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #86a6bf;
  font-size: 12px;
}

@media (max-width: 960px) {
  .menu-button {
    display: grid;
  }

  .primary-navigation {
    position: absolute;
    top: var(--nav-height);
    right: 0;
    left: 0;
    display: none;
    align-items: stretch;
    padding: 12px 20px 22px;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
  }

  .primary-navigation.is-open {
    display: flex;
    flex-direction: column;
  }

  .nav-link {
    padding: 14px 10px;
    border-bottom: 1px solid var(--color-border);
    font-size: 15px;
  }

  .nav-link::after {
    display: none;
  }

  .nav-github {
    margin: 12px 0 0;
  }

  .mission-grid {
    grid-template-columns: 1fr repeat(3, minmax(0, 0.45fr));
    gap: 24px;
  }

  .split-intro,
  .page-hero-grid,
  .cta-grid {
    grid-template-columns: 1fr;
    gap: 38px;
  }

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

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

  .workflow-step:not(:last-child)::after {
    display: none;
  }

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

  .roadmap-item:nth-child(2) {
    border-right: 0;
    margin-right: 0;
  }

  .roadmap-item:nth-child(n + 3) {
    margin-top: 34px;
  }

  .cta-actions {
    justify-content: flex-start;
  }

  .footer-grid {
    grid-template-columns: 1.4fr repeat(3, 0.7fr);
    gap: 30px;
  }
}

@media (max-width: 720px) {
  .container,
  .narrow {
    width: min(calc(100% - 32px), var(--container-width));
  }

  .hero {
    min-height: 650px;
    background-position: 62% center;
  }

  .hero::before {
    background: rgba(255, 255, 255, 0.86);
  }

  .hero-content {
    padding-block: 72px;
  }

  .hero-description,
  .page-hero-description {
    font-size: 16px;
  }

  .hero-actions .button {
    flex: 1 1 calc(50% - 8px);
  }

  .section {
    padding-block: 58px;
  }

  .section-header {
    margin-bottom: 30px;
  }

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

  .mission-copy {
    grid-column: 1 / -1;
  }

  .stat {
    padding-left: 12px;
  }

  .stat strong {
    font-size: 22px;
  }

  .card-grid,
  .track-grid,
  .principles,
  .contact-row {
    grid-template-columns: 1fr;
  }

  .full-span {
    grid-column: auto;
  }

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

  .workflow-step {
    padding-right: 12px;
  }

  .roadmap {
    grid-template-columns: 1fr;
    border-top: 0;
    border-left: 1px solid var(--color-border);
  }

  .roadmap-item,
  .roadmap-item:nth-child(n + 3) {
    margin: 0;
    padding: 0 0 32px 26px;
    border-right: 0;
  }

  .roadmap-item::before {
    top: 4px;
    left: -5px;
  }

  .policy-grid,
  .metadata-list,
  .metric-grid {
    grid-template-columns: 1fr;
  }

  .page-hero {
    padding-block: 58px 52px;
  }

  .page-status {
    max-width: 420px;
  }

  .track-detail {
    grid-template-columns: 1fr;
  }

  .docs-layout {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .docs-nav {
    position: static;
    grid-template-columns: repeat(2, 1fr);
    padding-bottom: 22px;
    border-bottom: 1px solid var(--color-border);
  }

  .docs-nav p {
    grid-column: 1 / -1;
  }

  .docs-nav a {
    border-left: 0;
    padding: 5px 0;
  }

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

  .footer-intro {
    grid-column: 1 / -1;
  }
}

@media (max-width: 440px) {
  .hero h1 {
    font-size: 40px;
  }

  .hero-title-detail {
    font-size: 23px;
  }

  .hero-actions .button,
  .cta-actions .button {
    flex-basis: 100%;
  }

  .mission-grid {
    grid-template-columns: 1fr;
  }

  .mission-copy {
    grid-column: auto;
  }

  .stat {
    padding: 12px 0 0;
    border-top: 1px solid rgba(255, 255, 255, 0.18);
    border-left: 0;
  }

  .workflow {
    grid-template-columns: 1fr 1fr;
  }

  .track-card-header {
    flex-direction: column;
  }

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

  .footer-intro {
    grid-column: auto;
  }

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

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}