:root {
  color-scheme: light dark;
  --page-bg: #f8fafc;
  --surface: #ffffff;
  --surface-soft: #f1f5f9;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --heading: #102a43;
  --accent: #166534;
  --accent-dark: #0f4f28;
  --focus: #0f766e;
}

@media (prefers-color-scheme: dark) {
  :root {
    --page-bg: #0f1411;
    --surface: #171e1a;
    --surface-soft: #202923;
    --text: #edf3ef;
    --muted: #aebbb2;
    --border: #455249;
    --heading: #f3f7f4;
    --accent: #65bd87;
    --accent-dark: #84cea0;
    --focus: #78c997;
  }
}

* { box-sizing: border-box; }
html { background: var(--page-bg); }
body {
  margin: 0;
  color: var(--text);
  background: var(--page-bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
}
a { color: var(--accent-dark); }
a:hover { color: var(--accent); }
a:focus-visible, button:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }

.public-shell { min-height: 100vh; }
.public-header {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.public-header-inner,
.public-main,
.public-footer-inner {
  width: min(100% - 40px, 1040px);
  margin: 0 auto;
}
.public-header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.public-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--heading);
  text-decoration: none;
}
.public-brand-mark {
  padding-right: 12px;
  border-right: 1px solid var(--border);
  color: var(--heading);
  font-size: 18px;
  font-weight: 750;
}
.public-brand-copy strong,
.public-brand-copy span { display: block; line-height: 1.2; }
.public-brand-copy strong { font-size: 15px; }
.public-brand-copy span {
  margin-top: 3px;
  color: var(--accent);
  font-size: 10px;
  font-weight: 750;
  text-transform: uppercase;
}
.public-nav {
  display: flex;
  align-items: center;
  gap: 8px 18px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.public-nav a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}
.public-nav a[aria-current="page"] { color: var(--heading); }
.public-nav .public-app-link {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  padding: 7px 13px;
  border: 1px solid var(--accent);
  border-radius: 4px;
  color: #ffffff;
  background: var(--accent);
}
.public-nav .public-app-link:hover { background: var(--accent-dark); }

.public-main { padding: 64px 0 72px; }
.public-hero {
  max-width: 780px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}
.public-eyebrow,
.public-section-label {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 750;
  text-transform: uppercase;
}
h1, h2, h3 { margin-top: 0; color: var(--heading); line-height: 1.2; }
h1 { margin-bottom: 14px; font-size: clamp(34px, 6vw, 52px); }
h2 { margin-bottom: 14px; font-size: 24px; }
h3 { margin-bottom: 8px; font-size: 17px; }
p { margin: 0 0 16px; }
.public-lede { color: var(--muted); font-size: 20px; line-height: 1.5; }
.public-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.public-button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 8px 15px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--heading);
  background: var(--surface);
  font-weight: 650;
  text-decoration: none;
}
.public-button.primary {
  border-color: var(--accent);
  color: #ffffff;
  background: var(--accent);
}
.public-button.primary:hover { background: var(--accent-dark); }
.public-section { padding: 32px 0; border-bottom: 1px solid var(--border); }
.public-section:last-child { border-bottom: 0; }
.public-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
}
.public-grid article { min-width: 0; padding: 22px; }
.public-grid article + article { border-left: 1px solid var(--border); }
.public-grid p { margin-bottom: 0; color: var(--muted); font-size: 15px; }
.public-note {
  padding: 18px 20px;
  border-left: 3px solid var(--accent);
  background: var(--surface-soft);
}
.public-note p:last-child { margin-bottom: 0; }
.public-document { max-width: 820px; }
.public-document h2 { margin-top: 34px; }
.public-document ul { padding-left: 22px; }
.public-document li + li { margin-top: 8px; }
.public-document .updated { color: var(--muted); }
.public-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
}
.public-footer-inner {
  min-height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  font-size: 13px;
}
.public-footer-links { display: flex; flex-wrap: wrap; gap: 12px; }

@media (max-width: 720px) {
  .public-header-inner,
  .public-main,
  .public-footer-inner { width: min(100% - 28px, 1040px); }
  .public-header-inner { min-height: 64px; }
  .public-brand-copy { display: none; }
  .public-nav { gap: 8px 12px; }
  .public-nav a { font-size: 13px; }
  .public-main { padding: 40px 0 48px; }
  .public-lede { font-size: 18px; }
  .public-grid { grid-template-columns: minmax(0, 1fr); }
  .public-grid article + article {
    border-top: 1px solid var(--border);
    border-left: 0;
  }
  .public-footer-inner {
    padding: 18px 0;
    align-items: flex-start;
    flex-direction: column;
  }
}