:root { --bg: #fbfaff; --fg: #1d1b2c; --muted: #5d5a73; --accent: #6d3fe0; }
@media (prefers-color-scheme: dark) { :root { --bg: #0f0e17; --fg: #ecebf5; --muted: #a7a3bd; --accent: #a98bff; } }
body { margin: 0; background: var(--bg); color: var(--fg);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 40px 16px 64px; }
h1 { font-size: 1.9rem; line-height: 1.25; margin: 0 0 .5rem; }
h2 { font-size: 1.15rem; margin: 2rem 0 .5rem; }
.lead { font-size: 1.1rem; }
.meta { color: var(--muted); }
a { color: var(--accent); }
code { font-size: .9em; overflow-wrap: anywhere; }
li { margin: .3rem 0; }