:root {
  color-scheme: light dark;
  --bg: #fff;
  --fg: #222;
  --muted: #666;
  --link: #1a5fb4;
  --line: #ddd;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1e1e1e;
    --fg: #ddd;
    --muted: #999;
    --link: #78aeed;
    --line: #444;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 18px/1.5 system-ui, sans-serif;
}

main {
  max-width: 40em;
  margin: 0 auto;
  padding: 2em 1em;
}

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

img {
  max-width: 100%;
  height: auto;
}

header p {
  margin-top: 0;
  color: var(--muted);
}

h1 {
  margin: 0.25em 0 0;
}

h2 {
  margin-top: 2em;
}

.downloads {
  padding: 0;
  list-style: none;
}

.downloads li {
  margin: 0.5em 0;
}

.downloads a {
  display: block;
  padding: 0.75em 1em;
  border: 1px solid var(--line);
  border-radius: 6px;
  text-decoration: none;
  font-weight: bold;
}

footer {
  margin-top: 3em;
  padding-top: 1em;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9em;
}