:root {
  --page-bg: #f4f4f2;
  --page-fg: #111111;
  --page-muted: #555550;
  --page-accent: #b35300;
  --page-border: #d5d5d0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 2.5rem 1.25rem 4rem;
  background: var(--page-bg);
  color: var(--page-fg);
  font-family: 'BIZ UDPGothic', 'Yu Gothic', 'Hiragino Kaku Gothic ProN', sans-serif;
  line-height: 1.85;
}

main {
  max-width: 46rem;
  margin: 0 auto;
}

h1 {
  font-size: 1.5rem;
  margin: 0 0 4px;
}

h2 {
  font-size: 1.05rem;
  margin: 2.25rem 0 0.6rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--page-border);
}

p,
li {
  font-size: 0.9rem;
}

ul {
  padding-left: 1.25rem;
}

a {
  color: var(--page-accent);
}

.updated {
  color: var(--page-muted);
  font-size: 0.8rem;
  margin: 0 0 2rem;
}

.back-link {
  display: inline-block;
  margin-top: 3rem;
  padding: 0.6rem 1.1rem;
  border: 1px solid var(--page-border);
  border-radius: 6px;
  background: #ffffff;
  color: var(--page-fg);
  text-decoration: none;
}

.back-link:hover {
  border-color: var(--page-accent);
}