:root {
  color-scheme: dark light;
  --bg: #0f1115;
  --fg: #e8e8ec;
  --muted: #a3a6b0;
  --card: #181b22;
  --accent: #7c5cff;
}
@media (prefers-color-scheme: light) {
  :root { --bg: #f7f7fa; --fg: #15171c; --muted: #5a5e6a; --card: #ffffff; }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 960px; margin: 0 auto; padding: 48px 20px; }
header { margin-bottom: 40px; }
h1 { font-size: 2.6rem; margin: 0; letter-spacing: -0.02em; }
h2 { font-size: 1.2rem; margin: 0 0 8px; }
.lead { color: var(--muted); font-size: 1.2rem; margin: 8px 0 0; }
section { margin: 40px 0; }
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
article { background: var(--card); border-radius: 14px; padding: 20px; }
article p { color: var(--muted); margin: 0; }
a { color: var(--accent); }
.button {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 10px 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
}
.muted { color: var(--muted); }
code { background: var(--card); padding: 2px 6px; border-radius: 6px; }
footer { text-align: center; color: var(--muted); padding: 24px; }