:root {
  --bg: #fbfaf7; --fg: #1d2420; --muted: #5d6862; --accent: #2f6b4f; --accent-fg: #fff; --line: #e3e1da;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #121614; --fg: #e8ece9; --muted: #9aa7a0; --accent: #7cc4a0; --accent-fg: #0d1210; --line: #2a312d; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.55 ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif; }
.wrap { max-width: 60rem; margin: 0 auto; padding: 0 16px; }
.top { display: flex; align-items: center; justify-content: space-between; padding-top: 20px; padding-bottom: 20px; }
.mark { font-weight: 700; letter-spacing: .02em; }
.hero { padding: 48px 0 32px; max-width: 40rem; }
h1 { font-size: clamp(2rem, 5vw, 3rem); line-height: 1.1; margin: 0 0 16px; }
.lede { font-size: 1.15rem; color: var(--muted); margin: 0 0 28px; }
.button { display: inline-block; background: var(--accent); color: var(--accent-fg); text-decoration: none; padding: 12px 20px; border-radius: 10px; font-weight: 600; }
.button.small { padding: 8px 14px; font-size: .95rem; }
.note { color: var(--muted); font-size: .9rem; margin-top: 12px; }
.three { display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: 24px; padding: 32px 0; border-top: 1px solid var(--line); }
h2 { font-size: 1.1rem; margin: 0 0 8px; }
.three p, .programs p { margin: 0; color: var(--muted); }
.programs { padding: 32px 0; border-top: 1px solid var(--line); max-width: 40rem; }
footer { border-top: 1px solid var(--line); padding-top: 20px; padding-bottom: 40px; color: var(--muted); font-size: .9rem; }
nav { display: flex; align-items: center; gap: 16px; }
a.quiet { color: var(--fg); text-decoration: none; }
a.quiet:hover { text-decoration: underline; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); gap: 16px; margin-top: 20px; }
.cards.tools { padding: 0 0 32px; }
.card { border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; }
.card h3 { margin: 0 0 8px; font-size: 1.1rem; }
.card h3 a { color: var(--accent); }
.card p { margin: 0 0 8px; color: var(--muted); }
.card dl { margin: 8px 0; display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; font-size: .95rem; }
.card dt { color: var(--muted); }
.card dd { margin: 0; }