:root {
  color-scheme: light dark;
  --site-header-height: 69px;
  --avds-color-brand-strong: #14213d;
  --avds-color-brand-muted: #213456;
  --avds-color-accent-warm: #c8a84b;
  --avds-color-accent-cool: #087f73;
  --avds-color-ink: #162033;
  --avds-color-text-muted: #62718a;
  --avds-color-border: #d8e0e8;
  --avds-color-surface: #ffffff;
  --avds-color-surface-subtle: #f4f6f8;
  --avds-color-canvas: #edf1f5;
  --avds-color-success: #26724a;
  --avds-color-warning: #8a6200;
  --avds-color-danger: #a33a36;
  --content: 1180px;
  --reading: 820px;
  --radius-control: 8px;
  --radius-surface: 14px;
  --font: Onest, Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --space-1: .5rem;
  --space-2: .75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4.5rem;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--avds-color-ink);
  background: var(--avds-color-canvas);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
}
a { color: inherit; }
button, input { font: inherit; }
h1, h2, h3, p, dd, dt, li, a { overflow-wrap: anywhere; }
h1, h2, h3 { line-height: 1.12; text-wrap: balance; }
p { text-wrap: pretty; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .9em; }

.skip-link {
  position: fixed;
  z-index: 50;
  top: var(--space-2);
  left: var(--space-2);
  padding: .5rem var(--space-3);
  color: white;
  background: var(--avds-color-brand-strong);
  transform: translateY(-160%);
}
.skip-link:focus { top: calc(var(--site-header-height) + .25rem); transform: none; }

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  color: white;
  background: var(--avds-color-brand-strong);
  border-bottom: 1px solid color-mix(in srgb, white 18%, transparent);
}
.site-header__inner {
  max-width: var(--content);
  min-height: 68px;
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin: 0 auto;
  padding: 0 var(--space-4);
}
.brand { min-height: 44px; display: inline-flex; align-items: center; gap: var(--space-2); text-decoration: none; }
.brand__mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid color-mix(in srgb, white 35%, transparent);
  border-radius: var(--radius-control);
  font-weight: 850;
}
.brand strong, .brand small { display: block; }
.brand small { color: #c7d2e2; font-size: .67rem; }
.site-nav { display: flex; align-items: stretch; gap: var(--space-4); margin-left: auto; }
.site-nav a {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 68px;
  color: #dbe4f0;
  font-size: .78rem;
  font-weight: 750;
  text-decoration: none;
  white-space: nowrap;
}
.site-nav a:hover, .site-nav a:focus-visible, .site-nav a[aria-current="page"] { color: white; }
.site-nav a[aria-current="page"]::after { content: ""; position: absolute; right: 0; bottom: 0; left: 0; height: 3px; background: var(--avds-color-accent-warm); }
.header-action {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: .55rem .85rem;
  color: var(--avds-color-brand-strong);
  background: white;
  border-radius: var(--radius-control);
  font-size: .75rem;
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
}

main { min-height: 60vh; padding-bottom: var(--space-7); }
.hero, .workflow, .surface-boundary, .action-directory, .article-shell {
  width: min(100%, var(--content));
  margin: 0 auto;
  padding-right: var(--space-4);
  padding-left: var(--space-4);
}
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, .55fr);
  gap: var(--space-6);
  align-items: end;
  padding-top: var(--space-7);
}
.hero__content { max-width: 780px; }
h1 { max-width: 20ch; margin: 0; font-size: clamp(2.3rem, 5vw, 4.7rem); letter-spacing: -.04em; }
.lede { max-width: 68ch; margin: var(--space-4) 0 0; color: var(--avds-color-text-muted); font-size: clamp(1rem, 1.5vw, 1.15rem); }
.actions { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-5); }
.button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .65rem 1rem;
  border: 1px solid var(--avds-color-border);
  border-radius: var(--radius-control);
  color: var(--avds-color-brand-strong);
  background: transparent;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}
.button:hover, .button:focus-visible { border-color: var(--avds-color-brand-strong); }
.button--primary { color: white; background: var(--avds-color-brand-strong); border-color: var(--avds-color-brand-strong); }
.button--secondary { background: var(--avds-color-surface); }

.principle-panel {
  padding: var(--space-5);
  background: var(--avds-color-surface);
  border: 1px solid var(--avds-color-border);
  border-top: 4px solid var(--avds-color-accent-cool);
  border-radius: var(--radius-surface);
}
.principle-panel strong { font-size: 1.15rem; }
.principle-panel p { margin: var(--space-2) 0 0; color: var(--avds-color-text-muted); }
.principle-panel a { min-height: 44px; display: inline-flex; align-items: center; margin-top: var(--space-4); color: var(--avds-color-brand-strong); font-weight: 800; }

.workflow, .surface-boundary, .action-directory { padding-top: var(--space-7); }
.section-heading { max-width: 720px; }
.section-heading h2 { margin: 0; font-size: clamp(1.55rem, 3vw, 2.35rem); letter-spacing: -.025em; }
.section-heading p { margin: var(--space-2) 0 0; color: var(--avds-color-text-muted); }
.workflow-list, .method-steps, .review-steps { margin: var(--space-5) 0 0; padding: 0; list-style: none; border-top: 1px solid var(--avds-color-border); }
.workflow-list li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: var(--space-3);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--avds-color-border);
}
.workflow-list li > span { color: var(--avds-color-accent-cool); font-family: ui-monospace, monospace; font-weight: 850; }
.workflow-list strong, .workflow-list p { display: block; }
.workflow-list p { margin: .2rem 0 0; color: var(--avds-color-text-muted); }

.boundary-list, .term-list, .policy-list, .status-grid, .state-facts { margin: var(--space-5) 0 0; }
.boundary-list > div, .term-list > div, .policy-list > div {
  display: grid;
  grid-template-columns: minmax(150px, .34fr) minmax(0, 1fr);
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-top: 1px solid var(--avds-color-border);
}
.boundary-list dt, .term-list dt, .policy-list dt { font-weight: 850; }
.boundary-list dd, .term-list dd, .policy-list dd { margin: 0; color: var(--avds-color-text-muted); }

.action-list { display: grid; margin-top: var(--space-5); border-top: 1px solid var(--avds-color-border); }
.action-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--avds-color-border);
  text-decoration: none;
}
.action-list a:hover strong, .action-list a:focus-visible strong { color: var(--avds-color-accent-cool); }
.action-list strong, .action-list small { display: block; }
.action-list a > span { min-width: 0; }
.action-list small { margin-top: .2rem; color: var(--avds-color-text-muted); font-size: .82rem; }
.action-list em { flex: 0 0 auto; color: var(--avds-color-text-muted); font-size: .78rem; font-style: normal; font-weight: 800; white-space: nowrap; }
.action-list--compact { margin-top: var(--space-4); }

.article-shell { max-width: calc(var(--reading) + 3rem); }
.page-header { padding-top: var(--space-7); }
.article-shell > section { margin-top: var(--space-7); }
.article-shell h1 { max-width: 18ch; font-size: clamp(2.2rem, 4.5vw, 4rem); }
.article-shell > section > p { color: var(--avds-color-text-muted); }

.state-panel, .status-overview {
  padding: var(--space-5);
  background: var(--avds-color-surface);
  border: 1px solid var(--avds-color-border);
  border-left: 5px solid var(--avds-color-text-muted);
  border-radius: var(--radius-surface);
}
[data-state="ready"] { border-left-color: var(--avds-color-success); }
[data-state="degraded"] { border-left-color: var(--avds-color-warning); }
[data-state="error"] { border-left-color: var(--avds-color-danger); }
.state-panel h2, .status-overview h2 { margin: 0; font-size: 1.45rem; }
.state-panel p, .status-overview p { margin: var(--space-2) 0 0; color: var(--avds-color-text-muted); }
.state-facts, .status-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); }
.status-grid { grid-template-columns: repeat(4, 1fr); }
.state-facts > div, .status-grid > div { padding-top: var(--space-3); border-top: 1px solid var(--avds-color-border); }
.state-facts dt, .status-grid dt { color: var(--avds-color-text-muted); font-size: .72rem; }
.state-facts dd, .status-grid dd { margin: .2rem 0 0; font-weight: 800; }

.disclosure-list { margin-top: var(--space-4); border-top: 1px solid var(--avds-color-border); }
.disclosure-list details { border-bottom: 1px solid var(--avds-color-border); }
.disclosure-list summary { padding: var(--space-4) 0; font-weight: 850; cursor: pointer; }
.disclosure-list p { margin: 0 0 var(--space-4); color: var(--avds-color-text-muted); }

.source-list { display: grid; margin-top: var(--space-4); border-top: 1px solid var(--avds-color-border); }
.source-list article { display: grid; grid-template-columns: minmax(160px, 1fr) minmax(110px, .4fr) minmax(220px, 1fr); gap: var(--space-3); padding: var(--space-3) 0; border-bottom: 1px solid var(--avds-color-border); }
.source-list article > span, .source-list article > small { color: var(--avds-color-text-muted); }
.source-list article[data-state="available"] > span { color: var(--avds-color-success); }
.source-list article[data-state="limited"] > span { color: var(--avds-color-warning); }
.empty-note { margin: 0; padding: var(--space-4); color: var(--avds-color-text-muted); background: var(--avds-color-surface); border: 1px solid var(--avds-color-border); }

.boundary-note {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  padding: var(--space-5);
  background: var(--avds-color-surface-subtle);
  border-left: 4px solid var(--avds-color-warning);
}
.boundary-note h2, .boundary-note strong { margin: 0; font-size: 1.2rem; }
.boundary-note p { max-width: 62ch; margin: var(--space-2) 0 0; color: var(--avds-color-text-muted); }
.boundary-note a { min-height: 44px; display: inline-flex; align-items: center; flex: 0 0 auto; color: var(--avds-color-brand-strong); font-weight: 850; }
.inline-state { display: grid; gap: .2rem; margin-top: var(--space-4); padding: var(--space-4); background: var(--avds-color-surface); border: 1px solid var(--avds-color-border); border-left: 5px solid var(--avds-color-text-muted); }
.inline-state span { color: var(--avds-color-text-muted); }

.method-steps { counter-reset: step; }
.method-steps li { counter-increment: step; display: grid; grid-template-columns: 2rem minmax(0, 1fr); column-gap: var(--space-3); padding: var(--space-4) 0; border-bottom: 1px solid var(--avds-color-border); }
.method-steps li::before { content: counter(step); color: var(--avds-color-accent-cool); font-family: ui-monospace, monospace; font-weight: 850; }
.method-steps p { grid-column: 2; margin: .2rem 0 0; color: var(--avds-color-text-muted); }
.review-steps { counter-reset: review; }
.review-steps li { counter-increment: review; display: grid; grid-template-columns: 2rem minmax(0, 1fr); gap: var(--space-3); padding: var(--space-3) 0; border-bottom: 1px solid var(--avds-color-border); }
.review-steps li::before { content: counter(review); color: var(--avds-color-accent-cool); font-family: ui-monospace, monospace; font-weight: 850; }

.contact-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); margin-top: var(--space-4); }
.contact-list article { padding: var(--space-4); background: var(--avds-color-surface); border: 1px solid var(--avds-color-border); border-radius: var(--radius-surface); }
.contact-list h3 { margin: 0; font-size: 1.05rem; }
.contact-list p { color: var(--avds-color-text-muted); }
.contact-list a { min-height: 44px; display: inline-flex; align-items: center; font-weight: 800; }

.consent-banner {
  position: fixed;
  z-index: 40;
  right: var(--space-4);
  bottom: var(--space-4);
  left: var(--space-4);
  max-width: 720px;
  margin-left: auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  color: var(--avds-color-ink);
  background: var(--avds-color-surface);
  border: 1px solid var(--avds-color-border);
  border-radius: var(--radius-surface);
  box-shadow: 0 18px 48px color-mix(in srgb, var(--avds-color-brand-strong) 22%, transparent);
}
.consent-banner[hidden] { display: none; }
.home-page .consent-banner { position: static; margin: var(--space-4) auto 0; }
.consent-banner p { margin: .15rem 0 0; color: var(--avds-color-text-muted); font-size: .82rem; line-height: 1.35; }
.consent-banner__actions { display: flex; gap: var(--space-2); }
.consent-banner__actions .button { min-height: 44px; padding: .6rem .8rem; font-size: .8rem; }

.site-footer {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: var(--space-5);
  padding: var(--space-6) max(var(--space-4), calc((100vw - var(--content)) / 2));
  color: #dbe4f0;
  background: var(--avds-color-brand-strong);
}
.site-footer__brand strong, .site-footer__brand span { display: block; }
.site-footer__brand a { min-height: 44px; display: inline-flex; align-items: center; }
.site-footer__brand span, .site-footer__brand a, .site-footer p { color: #b9c6d8; }
.site-footer p { max-width: 66ch; margin: 0; }
.site-footer nav { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: var(--space-4); padding-top: var(--space-4); border-top: 1px solid color-mix(in srgb, white 18%, transparent); }
.site-footer nav a, .site-footer nav button { min-height: 44px; display: inline-flex; align-items: center; padding: 0; color: #dbe4f0; background: none; border: 0; font: inherit; font-size: .78rem; text-decoration: underline; cursor: pointer; }

.not-found { width: min(100%, var(--reading)); margin: 0 auto; padding: var(--space-7) var(--space-4); }
.not-found p { color: var(--avds-color-text-muted); }

:focus-visible { outline: 3px solid var(--avds-color-accent-warm); outline-offset: 3px; }
.skip-link:focus-visible { outline-offset: 0; }

@media (max-width: 1023px) {
  :root { --site-header-height: 113px; }
  .site-header__inner { flex-wrap: wrap; gap: var(--space-2) var(--space-3); padding-top: var(--space-2); }
  .site-nav { order: 3; width: 100%; display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 0; margin: 0; }
  .site-nav a { min-height: 44px; justify-content: center; white-space: normal; text-align: center; }
  .header-action { margin-left: auto; }
  .hero { grid-template-columns: 1fr; align-items: start; }
  .principle-panel { max-width: 560px; }
  .status-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) and (max-width: 1023px) {
  #main-content { scroll-margin-top: 3.5rem; }
}

@media (max-width: 767px) {
  :root { --space-7: 3.25rem; --site-header-height: 157px; }
  .site-header { position: static; }
  .site-header__inner { padding-right: var(--space-3); padding-left: var(--space-3); }
  .brand small { display: none; }
  .site-nav { grid-template-columns: repeat(3, 1fr); }
  .site-nav a { min-height: 44px; padding: .25rem; font-size: .68rem; }
  .hero, .workflow, .surface-boundary, .action-directory, .article-shell { padding-right: var(--space-3); padding-left: var(--space-3); }
  h1 { font-size: clamp(2.15rem, 12vw, 3.35rem); }
  .actions { display: grid; }
  .button { width: 100%; }
  .boundary-list > div, .term-list > div, .policy-list > div { grid-template-columns: 1fr; gap: .25rem; }
  .state-facts, .status-grid { grid-template-columns: 1fr; }
  .source-list article { grid-template-columns: 1fr; gap: .15rem; }
  .boundary-note { display: block; }
  .boundary-note a { display: inline-flex; margin-top: var(--space-3); }
  .contact-list { grid-template-columns: 1fr; }
  .consent-banner { right: var(--space-2); bottom: var(--space-2); left: var(--space-2); grid-template-columns: 1fr; max-height: calc(100vh - 1rem); overflow: auto; }
  .consent-banner__actions { display: grid; grid-template-columns: 1fr 1fr; }
  .site-footer { grid-template-columns: 1fr; padding: var(--space-5) var(--space-3); }
  .site-footer nav { grid-column: 1; gap: var(--space-3); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}

@media (prefers-color-scheme: dark) {
  :root {
    --avds-color-ink: #edf2f8;
    --avds-color-text-muted: #aab8ca;
    --avds-color-border: #35445b;
    --avds-color-surface: #172338;
    --avds-color-surface-subtle: #1d2b42;
    --avds-color-canvas: #101a2b;
  }
  .button--primary { color: #14213d; background: #ffffff; border-color: #ffffff; }
  .button--secondary { color: var(--avds-color-ink); }
  .header-action { color: #14213d; }
}