.popup {
	max-width: 900px;
    width: calc(100% - 40px);
    max-height: calc(100vh - 50px);
	    max-height: calc(100vh - 50px);
    overflow-y: auto;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: white;
  padding: 30px;
  border: 1px solid #ccc;
  z-index: 9999;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
}
.popup::before {
  content: "×";
  position: absolute;
  top: 10px;
  right: 15px;
  cursor: pointer;
  font-size: 20px;
}