.birthday-container {
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  }
  .result-container {
    border: 2px solid #007bff;
    padding: 20px;
    border-radius: 10px;
    margin-top: 20px;
    display: none;
  }
  .result-container p {
    margin-bottom: 10px;
  }