:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #1c1b1f;
  --muted: #5f5c67;
  --line: #e3e1e8;
  --accent: #3f5aa6;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131318;
    --fg: #e6e1e9;
    --muted: #a09da8;
    --line: #2f2d36;
    --accent: #adc0ff;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 28px 20px 64px;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, 'Apple SD Gothic Neo',
    'Noto Sans KR', 'Malgun Gothic', sans-serif;
  font-size: 16px;
  line-height: 1.75;
  word-break: keep-all;
  overflow-wrap: anywhere;
  -webkit-text-size-adjust: 100%;
}

main {
  max-width: 720px;
  margin: 0 auto;
}

h1 {
  font-size: 1.5rem;
  line-height: 1.4;
  margin: 0 0 4px;
}

h2 {
  font-size: 1.05rem;
  margin: 32px 0 8px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

h2:first-of-type {
  border-top: 0;
  padding-top: 0;
  margin-top: 24px;
}

p {
  margin: 0 0 12px;
}

ul,
ol {
  margin: 0 0 12px;
  padding-left: 22px;
}

li {
  margin-bottom: 6px;
}

.effective {
  color: var(--muted);
  font-size: 0.875rem;
  margin-bottom: 28px;
}

.note {
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

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

nav ul {
  list-style: none;
  padding: 0;
}

nav li {
  margin-bottom: 14px;
}