:root {
  --text: #172b4d;
  --muted: #505f79;
  --background: #ffffff;
  --surface: #f4f5f7;
  --border: #dfe1e6;
  --link: #0c66e4;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: #dee4ea;
    --muted: #9fadbc;
    --background: #1d2125;
    --surface: #22272b;
    --border: #38414a;
    --link: #579dff;
  }
}

* {
  box-sizing: border-box;
}

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

header,
main,
footer {
  max-width: 44rem;
  margin: 0 auto;
  padding: 0 16px;
}

header {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  align-items: baseline;
  padding-top: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

header .brand {
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  margin-right: auto;
}

header nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1rem;
}

main {
  padding-top: 1.5rem;
  padding-bottom: 2.5rem;
}

h1 {
  font-size: 1.9rem;
  line-height: 1.25;
  margin: 0.5rem 0 0.25rem;
}

h2 {
  font-size: 1.25rem;
  margin: 2.25rem 0 0.5rem;
}

h3 {
  font-size: 1.05rem;
  margin: 1.5rem 0 0.25rem;
}

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

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

.lead {
  font-size: 1.15rem;
}

.note {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem 1rem;
}

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

table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.95rem;
}

th,
td {
  text-align: left;
  vertical-align: top;
  padding: 0.5rem 0.6rem;
  border-bottom: 1px solid var(--border);
}

th {
  background: var(--surface);
}

address {
  font-style: normal;
}

footer {
  padding-top: 1rem;
  padding-bottom: 2rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}

footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1rem;
}