.custom-modal {
  display: none;
  position: fixed;
  z-index: 10000;
  left: 0; top: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.8);
  overflow: auto;
  padding-top: 60px;
}
.custom-modal-content {
  background: #fff;
  margin: auto;
  padding: 20px;
  border-radius: 12px;
  max-width: 600px;
  animation: fadeIn 0.3s ease;
}
.close-btn {
  float: right;
  font-size: 28px;
  cursor: pointer;
  
}
.close-btn:hover {
  color: red;
}
@keyframes fadeIn {
  from {opacity:0; transform:scale(0.9);}
  to {opacity:1; transform:scale(1);}
}
@media(max-width:576px){
  .custom-modal-content{ width:90%; }
  
}