body {
  margin: 0;
  padding: 1rem;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: #16213a;
  background: transparent;
}
.card { max-width: 720px; margin: 0 auto; }
h1 { font-size: 1.5rem; margin: 0 0 .25rem; }
.lead { font-weight: 600; color: #e8603f; margin: 0 0 .75rem; }
p { font-size: .95rem; line-height: 1.5; margin: 0 0 .75rem; }
table { border-collapse: collapse; width: 100%; font-size: .92rem; margin: 0 0 .75rem; }
td { padding: .35rem .5rem; border-top: 1px solid #e5e7eb; vertical-align: top; }
td:first-child { white-space: nowrap; font-weight: 600; width: 1%; }
a { color: #2563eb; text-decoration: none; }
a:hover { text-decoration: underline; }
code { background: #f3f4f6; padding: 0 .25rem; border-radius: 3px; font-size: .88em; }
.small { font-size: .85rem; color: #4b5563; }
@media (prefers-color-scheme: dark) {
  body { color: #e5e7eb; }
  td { border-top-color: #374151; }
  a { color: #60a5fa; }
  code { background: #1f2937; }
  .small { color: #9ca3af; }
}