:root {
  --bg: #fafafa;
  --fg: #171717;
  --muted: #6b6b6b;
  --border: #e4e4e4;
  --accent: #2563eb;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111113;
    --fg: #ececec;
    --muted: #9a9a9a;
    --border: #2c2c2e;
    --accent: #8ab4ff;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--fg);
  background: var(--bg);
}
main, header, footer { max-width: 40rem; margin-inline: auto; }
header { padding: 1.25rem; }
header a { text-decoration: none; color: var(--fg); font-weight: 600; }
main { padding: 1rem 1.25rem 4rem; }
h1 { font-size: 1.75rem; margin: 0 0 0.5rem; }
h2 { font-size: 1.1rem; margin: 2rem 0 0.5rem; }
.lede { color: var(--muted); margin: 0 0 1rem; }
.kicker {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.75rem;
  margin: 0;
}
.cards { display: grid; gap: 0.75rem; margin-top: 1.5rem; }
.card {
  display: block;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  text-decoration: none;
  color: inherit;
}
.card:hover { border-color: var(--accent); }
.card h2 { margin: 0 0 0.25rem; font-size: 1.05rem; }
.card p { margin: 0; color: var(--muted); }
a { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
footer { padding: 1rem 1.25rem 2rem; color: var(--muted); font-size: 0.875rem; }
footer a { color: inherit; }