body {
  background: #111;
  color: white;
  font-family: sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.box {
  text-align: center;
}

.download-btn {
  background: #22c55e;
  color: black;
  padding: 14px 28px;
  text-decoration: none;
  border-radius: 8px;
  font-weight: bold;
}