body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: #0b1220;
  color: #f5f7fa;
  line-height: 1.6;
}

header {
  padding: 2rem;
  text-align: center;
  background: linear-gradient(135deg, #8fd3ff, #d6c59a);
  color: #0b1220;
}

.tagline {
  margin-top: .5rem;
  font-weight: 500;
}

main {
  max-width: 800px;
  margin: auto;
  padding: 2rem;
}

h2 {
  margin-top: 2rem;
}

footer {
  text-align: center;
  padding: 2rem;
  font-size: .9rem;
  color: #cbd5e1;
}