.sub_btn, .sub_btn:hover, 
.sub_btn:active, .sub_btn:visited {
  text-decoration: none;
  color:black;
  border: 2px solid #000;
  padding: 10px 30px;
  font-weight: bold;
  cursor: pointer;
}

.modal-window {
    position: fixed;
    background-color: rgba(200, 200, 200, 0.75);
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    -webkit-transition: all 0.3s;
    -moz-transition: all 0.3s;
    transition: all 0.3s;
  }
  
  .modal-window-show {
    opacity: 1;
    pointer-events: auto;
  }
  
  #close{
      cursor: pointer;
  }
  
  .modal-window > div {
    width: min(90%, 525px);
    max-height: fit-content;
    position: relative;
    margin: 10% auto;
    padding: 1rem 2rem;
    background: #fff;
    color: #4d4d4d;
  }
  
  .modal-window header {
    font-weight: bold;
  }
  
  .modal-close-active {
    color: #aaa;
    line-height: 50px;
    font-size: 80%;
    position: absolute;
    right: 0;
    text-align: center;
    top: 0;
    width: 70px;
    text-decoration: none;
  }
  
  .modal-close-active:hover {
    color: #4d4d4d;
  }
  
  .modal-close-hidden {
    display: none;
  }
  
  .modal-window h1 {
    font-size: 150%;
    margin: 0 0 15px;
  }
  
  .modal-column {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding-top: 2.5rem;
  }
  
  .confirm-div-active {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }
  
  .confirm-div-hidden {
    display: none;
  }
  
  .card-hidden {
    display: none;
  }
  
  #btn-sec .btn {
    position: relative;
    border-color: #4d4d4d;
    max-height: 40px;
    cursor: pointer;
  }
  
  #btn-sec .btn-text {
    font-weight: bold;
    font-size: 20px;
    color: #4d4d4d;
    transition: all 0.2s;
  }
  
  #btn-sec .btn--loading .btn-text {
    visibility: hidden;
    opacity: 0;
  }
  
  #btn-sec .btn--loading::after {
    content: "";
    position: absolute;
    width: 30px;
    height: 30px;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    border: 4px solid transparent;
    border-top-color: #b3b3b3;
    border-radius: 50%;
    animation: btn-loading-spinner 1s ease infinite;
  }
  
  @keyframes btn-loading-spinner {
    from {
      transform: rotate(0turn);
    }
  
    to {
      transform: rotate(1turn);
    }
  }
  