:root {
  --bg: #fbfaf7;
  --surface: #ffffff;
  --text: #1c1b19;
  --muted: #5d5a54;
  --line: #e6e2da;
  --accent: #1f5f4a;
  --accent-soft: #e5efe9;
  --max: 68rem;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141412;
    --surface: #1c1c19;
    --text: #ecebe6;
    --muted: #a7a49c;
    --line: #2e2d29;
    --accent: #7cc4a6;
    --accent-soft: #1f2d27;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 1.25rem; }

header.site { border-bottom: 1px solid var(--line); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; height: 4rem; }
.brand { font-weight: 700; font-size: 1.2rem; letter-spacing: -0.01em; color: var(--text); text-decoration: none; }
.brand span { color: var(--accent); }
nav a { color: var(--muted); text-decoration: none; margin-left: 1.25rem; font-size: 0.95rem; }
nav a:hover { color: var(--text); }

.hero { padding: 5.5rem 0 4rem; }
.eyebrow { display: inline-block; background: var(--accent-soft); color: var(--accent); font-size: 0.85rem; font-weight: 600; padding: 0.25rem 0.7rem; border-radius: 999px; }
.hero h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); line-height: 1.1; letter-spacing: -0.02em; margin: 1.1rem 0 1rem; max-width: 18ch; }
.hero p.lede { font-size: 1.2rem; color: var(--muted); max-width: 40rem; margin: 0 0 2rem; }
.button { display: inline-block; background: var(--accent); color: var(--bg); text-decoration: none; font-weight: 600; padding: 0.8rem 1.4rem; border-radius: 0.5rem; }

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); gap: 1rem; padding: 1rem 0 4.5rem; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 0.75rem; padding: 1.5rem; }
.card h3 { margin: 0 0 0.5rem; font-size: 1.05rem; }
.card p { margin: 0; color: var(--muted); font-size: 0.97rem; }

.band { border-top: 1px solid var(--line); padding: 3.5rem 0; }
.band h2 { font-size: 1.6rem; letter-spacing: -0.01em; margin: 0 0 0.75rem; }
.band p { color: var(--muted); max-width: 44rem; }

.doc { padding: 3rem 0 4rem; max-width: 46rem; }
.doc h1 { font-size: 2.2rem; letter-spacing: -0.02em; margin: 0 0 0.25rem; }
.doc .updated { color: var(--muted); margin: 0 0 2rem; }
.doc h2 { font-size: 1.25rem; margin: 2.2rem 0 0.5rem; }
.doc h3 { font-size: 1.05rem; margin: 1.5rem 0 0.4rem; }
.doc li { margin: 0.3rem 0; }
.doc .callout { background: var(--accent-soft); border-radius: 0.5rem; padding: 1rem 1.2rem; }

footer.site { border-top: 1px solid var(--line); color: var(--muted); font-size: 0.9rem; }
footer.site .wrap { display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; justify-content: space-between; padding: 1.75rem 1.25rem; }
footer.site a { color: var(--muted); }