body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #0b0f1a;
  color: #ffffff;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.container {
  text-align: center;
  padding: 40px;
  border: 1px solid #2a2f45;
  border-radius: 12px;
  background: #121a2a;
  box-shadow: 0 0 30px rgba(0,0,0,0.4);
}

h1 {
  margin-bottom: 10px;
  color: #7cc4ff;
}

button {
  margin-top: 20px;
  padding: 10px 20px;
  border: none;
  background: #4c7dff;
  color: white;
  border-radius: 8px;
  cursor: pointer;
}

button:hover {
  background: #2f5fff;
}