.loader{
  visibility: hidden;
}

.section_button{
  visibility: hidden;
}

.loader {
  position: absolute;
  top: 250%;
  left: 50%;
  transform: translate(-50%, -50%);
  border: 16px solid #f3f3f3;
  border-radius: 50%;
  border-top: 16px solid #005746;
  width: 120px;
  height: 120px;
  -webkit-animation: spin 2s linear infinite; /* Safari */
  animation: spin 2s linear infinite;
}

  .mensaje_inicio{
    font-weight: bold;
    font-size: 25px;
  }
  
  .boton_descarga {
    visibility: hidden;
    position: absolute; /* Cambié de relative a absolute */
    top: 140%;
    left: 50%;
    transform: translate(-50%, -50%); /* Centra el botón */
    border-color: #005746;
    border-radius: 2px;
    font-family: Arial;
    font-weight: 600;
    font-size: 14px;
    padding: 6px 20px;
    width: fit-content;
    border-style: solid;
    background-color: #005746;
    color: #FFFFFF;
  }

  @-webkit-keyframes spin {
    0% { -webkit-transform: rotate(0deg); }
    100% { -webkit-transform: rotate(360deg); }
  }
  
  @keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}