:root {
  --bg: #fdfbfb;
  --text: #1d1d1f;
  --muted: #6e6e73;
  --accent: #0a66d9;
  --line: #e5e5ea;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161617;
    --text: #f5f5f7;
    --muted: #a1a1a6;
    --accent: #4da3ff;
    --line: #2c2c2e;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
}
main { max-width: 680px; margin: 0 auto; padding: 48px 16px 32px; }
header { text-align: center; margin-bottom: 40px; }
header img { width: 128px; height: 128px; }
h1 { font-size: 2.2em; margin: 8px 0 4px; letter-spacing: -0.02em; }
h2 { font-size: 1.25em; margin-top: 2em; }
.lead { color: var(--muted); font-size: 1.15em; margin: 0; }
a { color: var(--accent); }
kbd { font: inherit; padding: 0 4px; border: 1px solid var(--line); border-radius: 4px; }
table { border-collapse: collapse; width: 100%; }
td { padding: 6px 0; border-bottom: 1px solid var(--line); }
td:last-child { text-align: right; white-space: nowrap; }
footer {
  max-width: 680px; margin: 0 auto; padding: 24px 16px 48px;
  border-top: 1px solid var(--line); color: var(--muted); font-size: 0.9em;
  display: flex; gap: 16px; flex-wrap: wrap;
}
footer a { color: inherit; }