.card-hover {
    position: relative;
  }
  
  .card-hover:before,
  .card-hover:after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid transparent;
  }
  
  .card-hover:before {
    top: 0;
    left: 0;
    border-top-color: #030c4b;
    border-right-color: #030c4b;
  }
  
  .card-hover:after {
    bottom: 0;
    right: 0;
    border-bottom-color: #030c4b;
    border-left-color: #030c4b;
  }
  
  /* Agrega z-index al enlace */
  .card-hover .btn {
    position: relative;
    z-index: 1;
  }
  