body {
  background: #0f0f0f;
  color: #e0e0e0;
  font-family: monospace;
  margin: 0;
  padding: 2rem;
}

.container {
  max-width: 700px;
  margin: auto;
  padding: 2rem;
  background: #1a1a1a;
  border: 1px solid #444;
  box-shadow: 0 0 15px #111;
}

a {
  color: #66ccff;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.qr {
  max-width: 200px;
  margin-top: 1rem;
}