:root {
  --bg: #ffffff;
  --text: #1c1b22;
  --muted: #5d5a6b;
  --line: #e4e2ea;
  --accent: #6d3fd8;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15141a;
    --text: #ecebf2;
    --muted: #a5a2b3;
    --line: #2c2a35;
    --accent: #a98bff;
  }
}

* {
  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;
}

main {
  max-width: 44rem;
  margin: 0 auto;
  padding: 2.5rem 1rem 4rem;
}

h1 {
  font-size: 1.75rem;
  line-height: 1.25;
  margin: 0 0 0.25rem;
}

h2 {
  font-size: 1.15rem;
  margin: 2rem 0 0.5rem;
}

p,
li {
  color: var(--text);
}

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

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

nav {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  font-size: 0.9rem;
}

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