:root {
  --bg: #0b1020;
  --fg: #eaf6ff;
  --muted: #9fb2cc;
  --accent: #9fe8ff;
  --rule: rgba(159, 232, 255, 0.18);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  padding: 0 20px 80px;
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.75;
}

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

header.top {
  padding: 40px 0 28px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 32px;
}

header.top a.home {
  display: inline-block;
  color: var(--accent);
  text-decoration: none;
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

header.top a.home:hover {
  text-decoration: underline;
}

h1 {
  margin: 0 0 8px;
  font-size: 30px;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.updated {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

h2 {
  margin: 40px 0 10px;
  font-size: 19px;
  line-height: 1.4;
  padding-top: 22px;
  border-top: 1px solid var(--rule);
}

h2:first-of-type {
  border-top: none;
  padding-top: 0;
}

h3 {
  margin: 26px 0 6px;
  font-size: 16px;
}

p,
li {
  color: #dbe8f6;
}

ul {
  padding-left: 22px;
}

li {
  margin: 6px 0;
}

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

strong {
  color: var(--fg);
}

.lead {
  font-size: 17px;
}

.callout {
  margin: 24px 0;
  padding: 16px 18px;
  border: 1px solid var(--rule);
  border-radius: 10px;
  background: rgba(159, 232, 255, 0.05);
}

.callout p:first-child {
  margin-top: 0;
}

.callout p:last-child {
  margin-bottom: 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0;
  font-size: 15px;
}

th,
td {
  text-align: left;
  vertical-align: top;
  padding: 9px 10px;
  border-bottom: 1px solid var(--rule);
}

th {
  color: var(--muted);
  font-weight: 600;
  white-space: nowrap;
}

footer.bottom {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 14px;
}

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

.home-links {
  list-style: none;
  padding: 0;
}

.home-links li {
  margin: 12px 0;
}

@media (max-width: 560px) {
  body {
    font-size: 15px;
  }
  h1 {
    font-size: 25px;
  }
  th {
    white-space: normal;
  }
}