:root {
  color-scheme: light dark;
  --bg: #0b1020;
  --panel: #11182b;
  --text: #eef3ff;
  --muted: #aab6d0;
  --line: #283452;
  --accent: #88b4ff;
  --max: 880px;
}

* { box-sizing: border-box; }
html { font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}
main {
  width: min(calc(100% - 2rem), var(--max));
  margin: 0 auto;
  padding: 4.5rem 0 5rem;
}
header { margin-bottom: 2.5rem; }
h1, h2 { line-height: 1.2; }
h1 { font-size: clamp(2.2rem, 6vw, 4.5rem); margin: 0 0 1rem; letter-spacing: -0.04em; }
h2 { margin-top: 2.25rem; font-size: 1.35rem; }
p, li { color: var(--muted); }
strong { color: var(--text); }
a { color: var(--accent); text-underline-offset: 0.2em; }
.eyebrow { color: var(--accent); font-weight: 700; letter-spacing: .09em; text-transform: uppercase; font-size: .78rem; }
.lead { font-size: 1.2rem; max-width: 70ch; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.35rem 1.5rem;
  margin: 1.25rem 0;
}
nav { display: flex; flex-wrap: wrap; gap: .8rem 1.2rem; margin-top: 1.6rem; }
footer { border-top: 1px solid var(--line); margin-top: 3rem; padding-top: 1.25rem; font-size: .9rem; color: var(--muted); }
code { background: var(--panel); border: 1px solid var(--line); padding: .15rem .35rem; border-radius: 6px; }
ul { padding-left: 1.2rem; }
@media (prefers-color-scheme: light) {
  :root { --bg: #f7f9fd; --panel: #ffffff; --text: #11182b; --muted: #4f5d78; --line: #d8e0ef; --accent: #285fb8; }
}