body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #0f172a;
  color: white;
  text-align: center;
}

.container {
  padding: 60px 20px;
}

h1 {
  font-size: 48px;
  margin-bottom: 10px;
}

.subtitle {
  color: #94a3b8;
  margin-bottom: 40px;
}

.app {
  background: #1e293b;
  padding: 20px;
  border-radius: 12px;
  max-width: 400px;
  margin: auto;
}

.button {
  display: inline-block;
  margin-top: 15px;
  padding: 10px 20px;
  background: #22c55e;
  color: black;
  text-decoration: none;
  border-radius: 8px;
}

.footer {
  margin-top: 50px;
}

.footer a {
  margin: 0 10px;
  color: #94a3b8;
  text-decoration: none;
}