:root {
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #6b7280;
  --link: #2563eb;
  --max-width: 720px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0d12;
    --fg: #e8eaed;
    --muted: #9aa0a6;
    --link: #8ab4f8;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 64px 24px;
}

.hero h1 {
  font-size: 48px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 8px 0;
}
.hero .tagline {
  font-size: 20px;
  color: var(--muted);
  margin: 0 0 32px 0;
}
.hero .lede {
  font-size: 18px;
  margin: 0 0 32px 0;
}
.hero .links {
  margin: 32px 0 8px 0;
  color: var(--muted);
}
.hero .footer {
  color: var(--muted);
  font-size: 14px;
  margin-top: 48px;
}

.prose header {
  padding: 24px 0;
  border-bottom: 1px solid color-mix(in srgb, var(--fg) 10%, transparent);
  margin-bottom: 32px;
}
.prose h1 {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 24px 0;
}
.prose h2 {
  font-size: 20px;
  font-weight: 600;
  margin: 32px 0 12px 0;
}
.prose p { margin: 12px 0; }
.prose footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid color-mix(in srgb, var(--fg) 10%, transparent);
  color: var(--muted);
  font-size: 14px;
}
.prose footer a { color: var(--muted); }