:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f1f5f2;
  color: #15241d;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 32px 18px 64px;
}

main {
  width: min(760px, 100%);
  margin: 0 auto;
  padding: 34px;
  border: 1px solid #d8e2dc;
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 18px 50px rgba(13, 53, 35, 0.08);
}

.brand {
  margin: 0 0 30px;
  color: #0c5a3b;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

h1 { margin: 0 0 12px; font-size: 34px; }
h2 { margin: 30px 0 8px; font-size: 20px; }
p, li { color: #4b5f55; font-size: 16px; line-height: 1.72; }
ul { padding-left: 22px; }
.updated { margin-bottom: 28px; color: #718078; font-size: 14px; }
a { color: #087a4b; }

@media (max-width: 520px) {
  body { padding: 0; }
  main { min-height: 100vh; padding: 26px 20px 48px; border: 0; border-radius: 0; }
  h1 { font-size: 29px; }
}