:root {
  --bg: #0b0a10;
  --panel: #15131d;
  --text: #e6e8ee;
  --muted: #a3a6b4;
  --accent: #a878ff;
  --line: #2a2636;
}
@media (prefers-color-scheme: light) {
  :root { --bg: #f7f6fb; --panel: #ffffff; --text: #17151f; --muted: #555a68; --accent: #6d3fe0; --line: #e1ddeb; }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; align-items: center; gap: 14px; margin-bottom: 28px; }
header img { width: 56px; height: 56px; border-radius: 50%; }
header a { color: var(--text); text-decoration: none; font-weight: 700; font-size: 20px; letter-spacing: .04em; }
h1 { font-size: 30px; line-height: 1.2; margin: 0 0 8px; }
h2 { font-size: 20px; margin: 32px 0 8px; }
p, li { color: var(--text); }
.muted { color: var(--muted); }
a { color: var(--accent); }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 20px; margin: 20px 0; }
nav { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 40px; padding-top: 16px; border-top: 1px solid var(--line); font-size: 14px; }