/* Gaya Pop-Up */
.popup {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.4);
  }
  
  /* Gaya Isi Pop-Up */
  .popup-content {
    background-color: #c3e4ff;
    margin: 10% auto;
    padding: 20px;
    border: 1px solid #00142b;
    width: 60%;
    border-radius: 5px;
    position: relative;
  }
  
  /* Gaya Tombol Tutup Pop-Up */
  .close-button {
    color: #aaaaaa;
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    border: none;
    background: none;
  }
  
  .close-button:hover {
    color: #000;
  }
  
  /* Animasi Muncul Pop-Up */
  .popup-content {
    animation: fadeIn 0.5s;
  }
  
  @keyframes fadeIn {
    from {opacity: 0;}
    to {opacity: 1;}
  }
  
  .tombol-biru {
    background-color: #002147;
    color: #ffffff;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
  }