#submit-btn {
  width: 100%;
  padding: 16px;
  font-size: 18px;
  background-color: #0077aa;
  color: white;
  border: none;
  border-radius: 10px;
  margin-top: 20px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

#submit-btn:hover {
  background-color: #005f8a;
}