:root {
  --bg: #05080c;
  --ink: #f5f9fc;
  --muted: #aebdca;
  --cyan: #2de2e6;
  --line: #1b2733;
  color-scheme: dark;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 42rem; margin: 0 auto; padding: 3rem 1.25rem 4rem; }
h1 { font-size: 2rem; line-height: 1.2; margin: 0.25rem 0 1rem; }
h2 { font-size: 1.15rem; margin: 2.25rem 0 0.5rem; padding-top: 1rem; border-top: 1px solid var(--line); }
p, li { color: var(--muted); }
strong { color: var(--ink); }
.lead { font-size: 1.05rem; color: var(--ink); }
.eyebrow { font-size: 0.75rem; letter-spacing: 0.2em; text-transform: uppercase; margin: 0; }
.small { font-size: 0.85rem; margin-top: 2.5rem; }
a { color: var(--cyan); }
code { color: var(--cyan); font-size: 0.95em; }
ul { padding-left: 1.2rem; }