:root {
  --bg: #0f172a;
  --panel: #111827;
  --line: #334155;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --ok: #22c55e;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}
.wrap {
  max-width: 860px;
  margin: 3rem auto;
  padding: 0 1rem;
}
.card {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
  padding: 1.25rem 1.5rem;
}
h1 { margin-top: 0; }
a { color: #93c5fd; }
code {
  background: #1f2937;
  padding: .15rem .35rem;
  border-radius: 6px;
}
.small { color: var(--muted); font-size: .95rem; }
.ok { color: var(--ok); }
ul { line-height: 1.7; }