:root {
  color-scheme: light;
  --text: #1f2937;
  --muted: #64748b;
  --line: #d7dee8;
  --accent: #166534;
  --bg: #f6f7f9;
  --panel: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

main {
  width: min(840px, calc(100% - 32px));
  margin: 0 auto;
  padding: 40px 0;
}

article {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 28px;
}

h1 {
  margin: 0 0 6px;
  font-size: 30px;
  line-height: 1.2;
}

h2 {
  margin: 26px 0 8px;
  font-size: 20px;
  line-height: 1.25;
}

p {
  margin: 0 0 14px;
}

.document-text {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font-family: inherit;
  font-size: 16px;
}

ul {
  margin: 0 0 16px 22px;
  padding: 0;
}

li {
  margin: 0 0 8px;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.back {
  font-weight: 700;
}

.revision {
  color: var(--muted);
  margin-bottom: 24px;
}

@media (max-width: 560px) {
  main {
    width: min(100% - 20px, 840px);
    padding: 20px 0;
  }

  article {
    padding: 20px;
  }

  h1 {
    font-size: 24px;
  }
}