:root {
  color-scheme: light dark;
  --bg: #fbfaf7;
  --fg: #1d1d1b;
  --muted: #6b6a66;
  --line: #e4e2dc;
  --accent: #2f6f5e;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161615;
    --fg: #ecebe7;
    --muted: #9b9a95;
    --line: #2e2d2b;
    --accent: #7cc0a9;
  }
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font:
    17px/1.6 -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    'Helvetica Neue',
    Arial,
    sans-serif;
}

main {
  max-width: 42rem;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 2rem;
  font-size: 0.95rem;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--fg);
  text-decoration: none;
}

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

h1 {
  font-size: 1.9rem;
  line-height: 1.2;
  margin: 0 0 0.5rem;
}

h2 {
  font-size: 1.2rem;
  margin: 2.25rem 0 0.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

h3 {
  font-size: 1rem;
  margin: 1.5rem 0 0.25rem;
}

p,
ul {
  margin: 0.5rem 0;
}

ul {
  padding-left: 1.25rem;
}

li + li {
  margin-top: 0.35rem;
}

.meta,
footer {
  color: var(--muted);
  font-size: 0.9rem;
}

.lead {
  font-size: 1.15rem;
}

.links {
  list-style: none;
  padding: 0;
  margin-top: 1.5rem;
}

footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}