:root {
  color-scheme: light;
  --page-bg: #f4f7fb;
  --page-surface: #ffffff;
  --page-text: #101828;
  --page-muted: #5f6f85;
  --page-line: #d8e0ea;
  --page-accent: #2563eb;
  --page-accent-soft: #eaf2ff;
  --page-green: #16834d;
  --public-space-1: 4px;
  --public-space-2: 8px;
  --public-space-3: 12px;
  --public-space-4: 16px;
  --public-space-5: 20px;
  --public-space-6: 24px;
  --public-space-8: 32px;
  --public-space-10: 40px;
  --public-font-caption: 11px;
  --public-font-meta: 12px;
  --public-font-small: 13px;
  --public-font-control: 14px;
  --public-font-body: 15px;
  --public-font-section-title: 16px;
  --public-font-page-title: clamp(34px, 4.2vw, 48px);
  --public-line-height-tight: 1.2;
  --public-line-height-body: 1.6;
  --public-radius-control: 12px;
  --public-radius-card: 14px;
  --public-radius-panel: 16px;
  --public-control-height: 42px;
  --public-page-gutter: clamp(20px, 3vw, 40px);
  --public-page-gutter-block: clamp(32px, 4vw, 52px);
  --public-content-max: 1120px;
  --public-transition-fast: 160ms ease;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--page-bg);
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  display: flex;
  flex-direction: column;
  background: var(--page-bg);
  color: var(--page-text);
  font-size: var(--public-font-body);
  line-height: var(--public-line-height-body);
}

a {
  color: var(--page-accent);
}

a:hover {
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

a:focus-visible {
  outline: 2px solid var(--page-accent);
  outline-offset: 3px;
}

.public-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--page-line);
  background: var(--page-surface);
}

.public-header-inner,
.public-main,
.public-footer-inner {
  width: min(var(--public-content-max), calc(100% - var(--public-page-gutter) - var(--public-page-gutter)));
  margin: 0 auto;
}

.public-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--public-space-6);
  min-height: 72px;
}

.public-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--public-space-3);
  color: var(--page-text);
  font-size: 18px;
  font-weight: 700;
  text-decoration: none;
}

.public-brand img {
  width: 42px;
  height: 42px;
  border-radius: var(--public-radius-control);
}

.public-nav,
.public-footer-nav {
  display: flex;
  align-items: center;
  gap: var(--public-space-5);
  flex-wrap: wrap;
}

.public-nav a,
.public-footer-nav a {
  color: var(--page-muted);
  font-size: var(--public-font-control);
  font-weight: 600;
  text-decoration: none;
}

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

.public-main {
  flex: 1;
  padding: var(--public-page-gutter-block) 0 clamp(52px, 6vw, 72px);
}

.public-title-block {
  max-width: 780px;
  margin-bottom: var(--public-space-10);
}

.public-eyebrow {
  margin: 0 0 var(--public-space-2);
  color: var(--page-accent);
  font-size: var(--public-font-small);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.public-title-block h1 {
  margin: 0;
  font-size: var(--public-font-page-title);
  line-height: var(--public-line-height-tight);
  letter-spacing: 0;
}

.public-lead {
  margin: var(--public-space-4) 0 0;
  color: var(--page-muted);
  font-size: clamp(17px, 1.6vw, 18px);
  line-height: var(--public-line-height-body);
}

.public-origin {
  max-width: 900px;
  margin: 0 0 var(--public-space-10);
  padding-left: var(--public-space-5);
  border-left: 3px solid var(--page-accent);
}

.public-origin h2 {
  margin: 0 0 var(--public-space-3);
  font-size: clamp(23px, 2.4vw, 28px);
  line-height: 1.3;
  letter-spacing: 0;
}

.public-origin p:not(.public-eyebrow) {
  margin: var(--public-space-2) 0 0;
  color: var(--page-muted);
  font-size: 16px;
  line-height: 1.7;
}

.public-effective-date {
  margin: var(--public-space-3) 0 0;
  color: var(--page-muted);
  font-size: var(--public-font-control);
  font-weight: 600;
}

.public-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 232px;
  gap: clamp(32px, 4vw, 48px);
  align-items: start;
}

.public-article {
  min-width: 0;
  padding: clamp(24px, 3vw, 32px);
  border: 1px solid var(--page-line);
  border-radius: var(--public-radius-panel);
  background: var(--page-surface);
}

.public-article section + section {
  margin-top: var(--public-space-8);
  padding-top: var(--public-space-8);
  border-top: 1px solid var(--page-line);
}

.public-article h2 {
  margin: 0 0 var(--public-space-3);
  font-size: clamp(20px, 2vw, 23px);
  line-height: 1.3;
  letter-spacing: 0;
}

.public-article h3 {
  margin: var(--public-space-6) 0 var(--public-space-2);
  font-size: 17px;
  letter-spacing: 0;
}

.public-article p {
  margin: var(--public-space-2) 0;
}

.public-article :is(a, code) {
  overflow-wrap: anywhere;
  word-break: break-word;
}

.public-article ul,
.public-article ol {
  margin: var(--public-space-3) 0 0;
  padding-left: var(--public-space-6);
}

.public-article li + li {
  margin-top: 7px;
}

.public-note {
  margin: var(--public-space-5) 0 0;
  padding: var(--public-space-4);
  border-left: 4px solid var(--page-green);
  border-radius: 0 var(--public-radius-control) var(--public-radius-control) 0;
  background: #edf8f2;
  color: #24543b;
}

.public-toc {
  position: sticky;
  top: 96px;
  padding: var(--public-space-4) 0;
  border-top: 1px solid var(--page-line);
  border-bottom: 1px solid var(--page-line);
}

.public-toc strong {
  display: block;
  margin-bottom: var(--public-space-2);
  font-size: var(--public-font-small);
  text-transform: uppercase;
}

.public-toc a {
  display: block;
  padding: 5px 0;
  color: var(--page-muted);
  font-size: var(--public-font-control);
  font-weight: 600;
  text-decoration: none;
}

.public-feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  margin-top: var(--public-space-8);
  border: 1px solid var(--page-line);
  border-radius: var(--public-radius-panel);
  background: var(--page-line);
}

.public-feature {
  min-width: 0;
  padding: var(--public-space-5);
  background: var(--page-surface);
}

.public-feature h2 {
  margin: 0 0 var(--public-space-2);
  font-size: 18px;
}

.public-feature p {
  margin: 0;
  color: var(--page-muted);
}

.public-action-row {
  display: flex;
  gap: var(--public-space-3);
  margin-top: var(--public-space-8);
  flex-wrap: wrap;
}

.public-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--public-control-height);
  padding: 0 var(--public-space-4);
  border: 1px solid var(--page-accent);
  border-radius: var(--public-radius-control);
  background: var(--page-accent);
  color: #ffffff;
  font-size: var(--public-font-control);
  font-weight: 700;
  text-decoration: none;
  transition: border-color var(--public-transition-fast), background-color var(--public-transition-fast), color var(--public-transition-fast);
}

.public-button-secondary {
  border-color: var(--page-line);
  background: var(--page-surface);
  color: var(--page-text);
}

.public-cross-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--public-space-3);
  margin-top: var(--public-space-8);
}

.public-cross-links a {
  min-width: 0;
  padding: var(--public-space-4);
  border: 1px solid var(--page-line);
  border-radius: var(--public-radius-card);
  background: var(--page-surface);
  color: var(--page-text);
  text-decoration: none;
  transition: border-color var(--public-transition-fast), color var(--public-transition-fast);
}

.public-cross-links strong,
.public-cross-links span {
  display: block;
}

.public-cross-links span {
  margin-top: var(--public-space-1);
  color: var(--page-muted);
  font-size: var(--public-font-small);
}

.public-artwork {
  margin: var(--public-space-10) 0 0;
}

.public-artwork img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

.public-footer {
  margin-top: auto;
  border-top: 1px solid var(--page-line);
  background: var(--page-surface);
}

.public-footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--public-space-4) var(--public-space-8);
  min-height: 76px;
  color: var(--page-muted);
  font-size: var(--public-font-small);
  font-weight: 600;
}

@media (max-width: 820px) {
  :root {
    --public-page-gutter: 20px;
    --public-page-gutter-block: 36px;
  }

  .public-main {
    padding-bottom: 52px;
  }

  .public-origin {
    margin-bottom: var(--public-space-8);
    padding-left: var(--public-space-4);
  }

  .public-layout {
    grid-template-columns: 1fr;
    gap: var(--public-space-6);
  }

  .public-toc {
    position: static;
    order: -1;
  }

  .public-article {
    padding: var(--public-space-6);
  }

  .public-artwork {
    margin-top: var(--public-space-8);
  }
}

@media (max-width: 620px) {
  :root {
    --public-page-gutter: 16px;
    --public-page-gutter-block: 32px;
    --public-font-page-title: clamp(32px, 10vw, 38px);
  }

  .public-header-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: var(--public-space-2);
    padding: var(--public-space-3) 0;
  }

  .public-nav {
    width: 100%;
    gap: var(--public-space-2) var(--public-space-4);
  }

  .public-feature-grid,
  .public-cross-links {
    grid-template-columns: 1fr;
  }

  .public-action-row {
    display: grid;
  }

  .public-button {
    width: 100%;
  }

  .public-footer-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: var(--public-space-5) 0;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --page-bg: #111827;
    --page-surface: #171f2d;
    --page-text: #f5f7fb;
    --page-muted: #b6c1d1;
    --page-line: #354154;
    --page-accent: #8bbcff;
    --page-accent-soft: #1d3554;
    --page-green: #61d394;
  }
  .public-header {
    border-color: var(--page-line);
    background: var(--page-surface);
  }
  .public-note {
    background: #183527;
    color: #c2f0d4;
  }
}