:root { color-scheme: light; --ink: #111; --muted: #555; --brand: #2b0a53; --bg: #f4f4f5; }
* { box-sizing: border-box; }
body {
  font-family: system-ui, sans-serif;
  max-width: 42rem;
  margin: 2rem auto;
  padding: 0 1rem 3rem;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
}
h1 { color: var(--brand); font-size: 1.45rem; margin-bottom: .35rem; }
h2 { font-size: 1.05rem; margin: 1.4rem 0 .4rem; }
.meta { color: var(--muted); font-size: .9rem; }
a { color: var(--brand); }
nav { margin: 1rem 0 1.5rem; }
nav a { margin-right: 1rem; }