:root {
  --bg: #0d0b14;
  --panel: #17131f;
  --text: #e8e4f0;
  --muted: #a49cb5;
  --glow: #9be8c8;
  --line: #2c2538;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 42rem; margin: 0 auto; padding: 2rem 16px 4rem; }
header { border-bottom: 1px solid var(--line); padding: 1rem 16px; }
header a { color: var(--text); text-decoration: none; font-weight: 700; letter-spacing: .02em; }
h1 { font-size: 1.8rem; line-height: 1.25; margin: 0 0 1rem; }
h2 { font-size: 1.2rem; margin: 2rem 0 .5rem; }
a { color: var(--glow); }
.note { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: .75rem 1rem; }
.muted, footer { color: var(--muted); }
footer { max-width: 42rem; margin: 0 auto; padding: 1rem 16px 2rem; border-top: 1px solid var(--line); font-size: .9rem; }
footer a { margin-right: 1rem; }
code { background: var(--panel); padding: .1em .35em; border-radius: 4px; }