body.show-modal .backdrop {
  opacity: 1;
  visibility: visible;
  pointer-events: initial;
}

body.show-modal .modal {
  transform: scale(1);
}

.backdrop {
  display: flex;
  justify-content: center;
  align-items: center;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.3);
  z-index: 999;

  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 200ms ease-in-out, visibility 200ms ease-in-out;
}

.modal {
  padding: 24px;
  border-radius: 4px;
  max-width: 640px;
  width: 100%;
  min-height: 320px;
  background-color: #fff;
  box-shadow: 0px 1px 3px 0px rgba(0, 0, 0, 0.2),
    0px 1px 1px 0px rgba(0, 0, 0, 0.14), 0px 2px 1px -1px rgba(0, 0, 0, 0.12);

  transform: scale(1.1);
  transition: transform 200ms ease-in-out;
}