:root {
  --bg: #ffffff;
  --text: #14171c;
  --muted: #5b6370;
  --rule: #e3e6ea;
  --link: #1f3b66;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1216;
    --text: #e8eaed;
    --muted: #9aa3ae;
    --rule: #262b32;
    --link: #9cb8e4;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 16px 64px;
}

header.site {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 32px;
  font-size: 14px;
}

header.site a.brand {
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
}

h1 { font-size: 28px; line-height: 1.25; margin: 0 0 8px; }
h2 { font-size: 19px; line-height: 1.35; margin: 36px 0 8px; }
h3 { font-size: 16px; margin: 20px 0 4px; }

p, ul, ol, table { margin: 0 0 12px; }
ul, ol { padding-left: 20px; }
li { margin-bottom: 4px; }

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

.meta { color: var(--muted); font-size: 14px; margin-bottom: 24px; }

.notice {
  margin: 16px 0;
  padding: 16px;
  border: 1px solid var(--rule);
  border-left: 3px solid var(--text);
  border-radius: 6px;
}

.notice > :last-child { margin-bottom: 0; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}

th, td {
  text-align: left;
  vertical-align: top;
  padding: 8px 8px 8px 0;
  border-bottom: 1px solid var(--rule);
}

th { font-weight: 600; }

.table-wrap { overflow-x: auto; }

footer.site {
  margin-top: 48px;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 14px;
}

footer.site a { margin-right: 16px; }