body {
  background: linear-gradient(180deg, #121212 0%, #07121a 100%);
  color: #e0e0e0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  line-height: 1.6;
  padding: 2em;
  max-width: 800px;
  margin: 0 auto;
}
h1, h2, h3 {
  text-align: center;
}
a {
  color: #90caf9;
}