:root {
  --bg: #fbfaf7;
  --text: #1c1b19;
  --muted: #55524c;
  --accent: #1f4e79;
  --rule: #d9d5cc;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161615;
    --text: #f2f0eb;
    --muted: #bdb8ae;
    --accent: #9cc4ea;
    --rule: #3a3833;
  }
}

* { box-sizing: border-box; }

html { font-size: 112.5%; }

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

.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 1rem;
  top: 1rem;
  background: var(--text);
  color: var(--bg);
  padding: .5rem .75rem;
}

main {
  max-width: 40rem;
  margin: 0 auto;
  padding: 4rem 1.25rem 3rem;
}

header.site {
  max-width: 40rem;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 0;
}
header.site a {
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
}

h1 {
  font-size: 2.1rem;
  line-height: 1.2;
  margin: 0 0 1rem;
  letter-spacing: -0.01em;
}

h2 {
  font-size: 1.25rem;
  margin: 2.5rem 0 .5rem;
}

.eyebrow {
  color: var(--muted);
  font-size: .9rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  margin: 0 0 .75rem;
}

.subtitle {
  font-size: 1.25rem;
  color: var(--muted);
  margin: 0 0 2rem;
}

p { margin: 0 0 1rem; }

a { color: var(--accent); text-underline-offset: .2em; }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

dl { margin: 0; }
dt { color: var(--muted); font-size: .9rem; margin-top: 1rem; }
dd { margin: 0; }

.versions {
  list-style: none;
  padding: 0;
  margin: 0;
}
.versions li {
  padding: .9rem 0;
  border-bottom: 1px solid var(--rule);
  font-size: 1.1rem;
}
.versions li:first-child { border-top: 1px solid var(--rule); }
.versions span {
  display: block;
  color: var(--muted);
  font-size: .9rem;
}

.notice {
  border-left: 4px solid var(--accent);
  padding: .75rem 1rem;
  margin: 2rem 0;
}

footer {
  max-width: 40rem;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: .9rem;
}

@media (max-width: 30rem) {
  main { padding-top: 2.5rem; }
  h1 { font-size: 1.7rem; }
}