:root {
  --navy: #0f172a;
  --accent: #38bdf8;
  --text: #1e293b;
  --muted: #64748b;
  --border: #e2e8f0;
  --bg: #f8fafc;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
}
header {
  background: var(--navy);
  color: #fff;
  padding: 20px 24px;
}
header .wrap, main { max-width: 820px; margin: 0 auto; }
header a { color: #fff; text-decoration: none; font-weight: 700; font-size: 20px; }
header .brand { display: flex; align-items: center; gap: 10px; }
header .logo {
  width: 30px; height: 30px; border-radius: 7px;
  background: #c7f000; color: var(--navy);
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 800;
}
nav { margin-top: 10px; }
nav a { color: #cbd5e1; text-decoration: none; margin-right: 18px; font-size: 14px; }
nav a:hover { color: #fff; }
main { padding: 32px 24px 64px; }
h1 { font-size: 28px; margin-bottom: 4px; }
h2 { font-size: 20px; margin-top: 32px; }
.updated { color: var(--muted); font-size: 14px; margin-bottom: 24px; }
a { color: #0284c7; }
ul { padding-left: 20px; }
li { margin-bottom: 6px; }
.card {
  background: #fff; border: 1px solid var(--border); border-radius: 12px;
  padding: 20px 24px; margin: 20px 0;
}
code { background: #eef2f7; padding: 2px 6px; border-radius: 4px; font-size: 90%; }
footer {
  border-top: 1px solid var(--border); color: var(--muted);
  font-size: 13px; padding: 24px; text-align: center;
}
footer a { color: var(--muted); }