html, body {
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
  background: #0f172a;
  color: #f8fafc;
  min-height: 100%;
}

body {
  display: grid;
  place-items: center;
  min-height: 100vh;
}

.container {
  text-align: center;
  max-width: 700px;
  padding: 2rem;
}

h1 {
  margin-bottom: 1rem;
  font-size: 2.5rem;
}

p {
  font-size: 1.1rem;
  line-height: 1.6;
}