:root {
  color-scheme: light dark;
  --fg: #1a1a1a;
  --fg-muted: #555;
  --bg: #faf7ef;
  --accent: #2d5d3a;
  --rule: #d8d2c0;
}

@media (prefers-color-scheme: dark) {
  :root {
    --fg: #ece8dd;
    --fg-muted: #b5b0a5;
    --bg: #1d1f1c;
    --accent: #8bc09a;
    --rule: #3a3d38;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

main {
  max-width: 640px;
  margin: 0 auto;
  padding: 48px 24px 96px;
}

header {
  border-bottom: 1px solid var(--rule);
  margin-bottom: 32px;
  padding-bottom: 16px;
}

h1 {
  font-size: 28px;
  margin: 0 0 4px;
  letter-spacing: -0.01em;
}

h2 {
  font-size: 20px;
  margin: 32px 0 8px;
  letter-spacing: -0.005em;
}

p, ul, ol {
  margin: 12px 0;
  color: var(--fg);
}

ul, ol {
  padding-left: 22px;
}

li { margin: 4px 0; }

.tagline {
  color: var(--fg-muted);
  margin: 0;
}

.meta {
  color: var(--fg-muted);
  font-size: 14px;
  margin-top: 4px;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover { text-decoration: underline; }

nav {
  margin: 24px 0 0;
  font-size: 15px;
}

nav a { margin-right: 16px; }

footer {
  margin-top: 64px;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
  font-size: 13px;
  color: var(--fg-muted);
}