:root {
  color-scheme: light dark;
  --bg: #f4f5f1;
  --surface: #ffffff;
  --text: #18221d;
  --muted: #526059;
  --brand: #2e7059;
  --brand-soft: #dcebe3;
  --border: #d7ddd9;
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { line-height: 1.6; }
body { margin: 0; background: var(--bg); color: var(--text); }
a { color: var(--brand); text-underline-offset: .2em; }
.skip-link { position: absolute; left: 1rem; top: -4rem; padding: .65rem 1rem; background: var(--surface); z-index: 3; }
.skip-link:focus { top: 1rem; }
header { background: color-mix(in srgb, var(--surface) 92%, transparent); border-bottom: 1px solid var(--border); }
nav, main, footer { width: min(100% - 2rem, 760px); margin-inline: auto; }
nav { min-height: 4.5rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { color: var(--text); font-size: 1.05rem; font-weight: 800; letter-spacing: .12em; text-decoration: none; }
.nav-links { display: flex; flex-wrap: wrap; gap: 1rem; }
.nav-links a { color: var(--muted); text-decoration: none; }
.home { padding-block: clamp(4rem, 10vw, 8rem); }
.eyebrow { color: var(--brand); font-size: .78rem; font-weight: 800; letter-spacing: .12em; }
h1 { font-size: clamp(2.2rem, 8vw, 4.5rem); line-height: 1.04; letter-spacing: -.04em; margin: .4rem 0 1.2rem; }
.home > p:not(.eyebrow) { max-width: 650px; font-size: 1.15rem; color: var(--muted); }
.notice { padding: 1rem 1.1rem; border-left: .25rem solid var(--brand); background: var(--brand-soft); color: var(--text) !important; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: .85rem; margin-top: 2rem; }
.cards a { display: grid; gap: .3rem; padding: 1.1rem; background: var(--surface); border: 1px solid var(--border); border-radius: 1rem; color: var(--text); text-decoration: none; }
.cards a:hover { border-color: var(--brand); transform: translateY(-1px); }
.cards span { color: var(--muted); font-size: .92rem; }
.document { background: var(--surface); margin-block: 2rem; padding: clamp(1.25rem, 5vw, 3.5rem); border: 1px solid var(--border); border-radius: 1.25rem; }
.document h1 { font-size: clamp(2rem, 6vw, 3.4rem); }
.document h2 { margin-top: 2.4rem; line-height: 1.2; }
.document h3 { margin-top: 1.7rem; line-height: 1.3; }
.document p, .document li { max-width: 70ch; }
.document code { font-size: .9em; background: var(--bg); border-radius: .3rem; padding: .1rem .3rem; }
footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .75rem; padding-block: 1.5rem 2.5rem; color: var(--muted); font-size: .9rem; }

@media (prefers-color-scheme: dark) {
  :root { --bg: #101713; --surface: #18211c; --text: #edf3ef; --muted: #b4c0b9; --brand: #83c7a9; --brand-soft: #203d30; --border: #344239; }
}

@media (max-width: 520px) {
  nav { align-items: flex-start; flex-direction: column; padding-block: 1rem; }
  .document { margin-block: 1rem; border-radius: .9rem; }
}