.card {
  text-align: center;
  margin-top: 40px;
}

input {
  padding: 10px;
  margin-top: 10px;
  width: 80px;
  text-align: center;
  border-radius: 8px;
  border: none;
}

button {
  margin-top: 15px;
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  background: #00c2ff;
  color: white;
  font-weight: bold;
}

button:hover {
  background: #0099cc;
}

#result {
  margin-top: 20px;
  font-size: 1.2rem;
  word-break: break-all;
}