:root {
  color-scheme: light dark;
  --green: #0d853d;
  --ink: #0a1c0f;
  --cream: #f7f5d6;
  --surface: #fffef5;
  --line: #bcdcc8;
  --muted: #526259;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
  line-height: 1.75;
}

main {
  width: min(720px, calc(100% - 40px));
  margin: 0 auto;
  padding: 72px 0 56px;
}

.brand { display: flex; align-items: center; gap: 18px; }
.mark { width: 68px; height: 68px; fill: var(--green); flex: 0 0 auto; }
.mark .route { fill: var(--cream); }
.eyebrow { margin: 0 0 3px; color: var(--green); font-size: .78rem; font-weight: 700; letter-spacing: .12em; }
h1 { margin: 0; font-size: clamp(2rem, 7vw, 3.25rem); line-height: 1.15; letter-spacing: -.035em; }
.lead { margin: 32px 0; max-width: 34rem; color: var(--muted); font-size: 1.08rem; }

nav { border-top: 1px solid var(--line); }
nav a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 64px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}
a { color: var(--green); text-underline-offset: 3px; }
footer { margin-top: 48px; color: var(--muted); font-size: .9rem; }

.document { background: var(--surface); padding: 56px; margin-top: 40px; margin-bottom: 40px; border: 1px solid var(--line); }
.document .back { display: inline-block; margin-bottom: 36px; font-weight: 650; text-decoration: none; }
.document .updated { margin: 12px 0 36px; color: var(--muted); font-size: .9rem; }
.document h2 { margin: 40px 0 10px; font-size: 1.25rem; line-height: 1.4; }
.document p, .document ul { margin: 0; }
.document li + li { margin-top: 6px; }

@media (max-width: 600px) {
  main { padding-top: 40px; }
  .document { width: 100%; margin: 0; padding: 36px 22px 52px; border: 0; }
}

@media (prefers-color-scheme: dark) {
  :root { --ink: #edf5ef; --cream: #101712; --surface: #151f18; --line: #31543c; --muted: #a9b8ae; }
}