:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #1c1c1e;
  --muted: #6b6b70;
  --line: #e5e5ea;
  --accent: #7c5cff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f0f12;
    --fg: #f2f2f7;
    --muted: #9a9aa2;
    --line: #2c2c32;
    --accent: #9d86ff;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0 20px 80px;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, 'Hiragino Sans', 'Noto Sans JP', sans-serif;
  line-height: 1.8;
  -webkit-text-size-adjust: 100%;
}

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

header {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 0 24px;
  border-bottom: 1px solid var(--line);
}

header a {
  font-size: 20px;
  font-weight: 700;
  color: var(--fg);
  text-decoration: none;
  letter-spacing: 0.02em;
}

h1 {
  font-size: 26px;
  line-height: 1.5;
  margin: 40px 0 8px;
}

h2 {
  font-size: 19px;
  margin: 40px 0 8px;
  padding-top: 8px;
}

h3 {
  font-size: 16px;
  margin: 24px 0 4px;
}

p,
li {
  font-size: 15px;
}

ul,
ol {
  padding-left: 1.4em;
}

li {
  margin: 4px 0;
}

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

.updated {
  color: var(--muted);
  font-size: 13px;
  margin: 0 0 32px;
}

.lead {
  color: var(--muted);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 14px;
  display: block;
  overflow-x: auto;
}

th,
td {
  border: 1px solid var(--line);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}

th {
  background: color-mix(in srgb, var(--fg) 6%, transparent);
  white-space: nowrap;
}

footer {
  max-width: 720px;
  margin: 64px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

footer a {
  margin-right: 16px;
}

.center {
  text-align: center;
  padding: 80px 0;
}