:root {
  --text: #1a1a1a;
  --muted: #666;
  --link: #0066cc;
  --bg: #ffffff;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  font-size: 16px;
}

main {
  max-width: 760px;
  margin: 40px auto 80px;
  padding: 0 20px;
}

h1 {
  font-size: 28px;
  margin: 0 0 4px;
}

h2 {
  font-size: 18px;
  margin-top: 32px;
  margin-bottom: 8px;
}

p, ul, ol {
  margin-top: 0;
  margin-bottom: 14px;
}

ul, ol {
  padding-left: 22px;
}

li {
  margin-bottom: 6px;
}

a {
  color: var(--link);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.muted {
  color: var(--muted);
  font-size: 14px;
}

.updated {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 32px;
}

.back {
  margin-bottom: 24px;
  font-size: 14px;
}

.back a {
  color: var(--muted);
}

.links {
  list-style: none;
  padding: 0;
  margin: 24px 0;
}

.links li {
  margin-bottom: 12px;
}

.links a {
  font-size: 18px;
}

.footer {
  margin-top: 48px;
}