body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
  background: #020617;
  color: #e5e7eb;
  line-height: 1.6;
}
header {
  background: #020617;
  border-bottom: 1px solid #1f2937;
  padding: 0.75rem 1rem;
}
header nav a {
  color: #e5e7eb;
  text-decoration: none;
  font-size: 0.9rem;
}
header nav a:hover {
  text-decoration: underline;
}
main {
  max-width: 760px;
  margin: 0 auto;
  padding: 1.75rem 1rem 2.25rem;
}
h1 {
  font-size: 1.8rem;
  margin-top: 0;
}
h2 {
  font-size: 1.2rem;
  margin-top: 1.6rem;
}
footer {
  border-top: 1px solid #1f2937;
  padding: 1rem;
  font-size: 0.85rem;
  color: #9ca3af;
  text-align: center;
}
footer a {
  color: #22c55e;
  text-decoration: none;
}
footer a:hover {
  text-decoration: underline;
}