:root {
  --paper: #fbfaf7;
  --surface: #ffffff;
  --ink: #1c2420;
  --ink-soft: #47544e;
  --ink-mute: #6d7a74;
  --rule: #dfdbd2;
  --green: #2f6b52;
  --green-deep: #23503e;
  --clay: #b0603c;
  --sans: 'Avenir Next', Avenir, 'Segoe UI', system-ui, -apple-system, sans-serif;
  --serif: Charter, 'Iowan Old Style', Georgia, serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #141816;
    --surface: #1b211e;
    --ink: #e6ebe8;
    --ink-soft: #b6c2bc;
    --ink-mute: #8b968f;
    --rule: #2c3531;
    --green: #6fb897;
    --green-deep: #8fcdb0;
    --clay: #d68f6d;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 720px; margin: 0 auto; padding: 0 24px 80px; }

header.site {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  align-items: baseline;
  justify-content: space-between;
  padding: 28px 0;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--rule);
}
.brand {
  font-family: var(--sans);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--ink);
  text-decoration: none;
}
nav { display: flex; gap: 20px; font-family: var(--sans); font-size: 14.5px; }
nav a { color: var(--ink-soft); text-decoration: none; }
nav a:hover, nav a[aria-current="page"] { color: var(--green); }

h1 {
  font-family: var(--sans);
  font-size: clamp(28px, 5vw, 40px);
  line-height: 1.12;
  letter-spacing: -.024em;
  font-weight: 600;
  margin: 0 0 18px;
  text-wrap: balance;
}
.lede { font-size: 20px; line-height: 1.5; color: var(--ink-soft); margin: 0 0 32px; }

h2 {
  font-family: var(--sans);
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: -.014em;
  font-weight: 600;
  margin: 44px 0 12px;
  text-wrap: balance;
}
h3 { font-family: var(--sans); font-size: 17px; font-weight: 600; margin: 28px 0 8px; }

p { margin: 0 0 18px; }
a { color: var(--green-deep); text-decoration: underline; text-underline-offset: 2px; text-decoration-thickness: 1px; }
a:focus-visible { outline: 2px solid var(--green); outline-offset: 2px; border-radius: 2px; }

ul, ol { padding-left: 1.3em; margin: 0 0 18px; }
li { margin-bottom: 9px; }
li::marker { color: var(--green); }

.card {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 20px 24px;
  margin: 30px 0;
}
.card h3 { margin-top: 0; }
.card p:last-child { margin-bottom: 0; }

.note {
  border-left: 3px solid var(--clay);
  padding: 4px 0 4px 18px;
  margin: 30px 0;
  font-size: 16.5px;
  color: var(--ink-soft);
}
.note strong { color: var(--ink); }

.cols { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); margin: 28px 0; }

table { width: 100%; border-collapse: collapse; font-size: 16px; margin: 26px 0; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--rule); vertical-align: top; }
th { font-family: var(--sans); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-mute); }

footer.site {
  margin-top: 64px;
  padding-top: 22px;
  border-top: 1px solid var(--rule);
  font-family: var(--sans);
  font-size: 13.5px;
  color: var(--ink-mute);
}
footer.site p { margin-bottom: 10px; }
footer.site a { color: var(--ink-soft); }

@media (max-width: 560px) {
  body { font-size: 17px; }
  .lede { font-size: 18.5px; }
}