:root {
  --bg: #ffffff;
  --text: #1a1a1a;
  --muted: #5c5c5c;
  --line: #e4e4e4;
  --link: #0b57d0;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141414;
    --text: #ececec;
    --muted: #a8a8a8;
    --line: #2e2e2e;
    --link: #8ab4f8;
  }
}

* {
  box-sizing: border-box;
}

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

.site-header,
main,
.site-footer {
  max-width: 40rem;
  margin: 0 auto;
  padding: 0 16px;
}

.site-header {
  padding-top: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.brand {
  font-weight: 600;
  letter-spacing: 0.01em;
}

main {
  padding-top: 32px;
  padding-bottom: 48px;
}

h1 {
  margin: 0 0 24px;
  font-size: 1.75rem;
  line-height: 1.25;
}

h2 {
  margin: 32px 0 12px;
  font-size: 1.25rem;
}

p {
  margin: 0 0 16px;
}

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

.site-footer {
  padding-top: 16px;
  padding-bottom: 32px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.875rem;
}