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

.container {
  margin-top: 80px;
}

input {
  padding: 10px;
  margin: 10px;
  width: 250px;
  border-radius: 5px;
  border: none;
}

button {
  padding: 10px 20px;
  background: #22c55e;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

button:hover {
  background: #16a34a;
}

.card {
  background: #1e293b;
  padding: 20px;
  border-radius: 10px;
  display: inline-block;
}