body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f5f6f7;
  color: #222;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}
.container {
  text-align: center;
  padding: 40px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
button {
  background-color: #0078ff;
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 16px;
}
button:hover {
  background-color: #005fd1;
}