/***** MODAL DIALOG ****/
#modal {
  /* Underlay covers entire screen. */
  position: fixed;
  top: 0px;
  bottom: 0px;
  left: 0px;
  right: 0px;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1000;

  /* Flexbox centers the .modal-content vertically and horizontally */
  display: flex;
  flex-direction: column;
  align-items: center;

  /* Animate when opening */
  animation-name: fadeIn;
  animation-duration: 150ms;
  animation-timing-function: ease;
}

#modal > .modal-underlay {
  /* underlay takes up the entire viewport. This is only
	required if you want to click to dismiss the popup */
  position: absolute;
  z-index: -1;
  top: 0px;
  bottom: 0px;
  left: 0px;
  right: 0px;
}

#modal > .modal-content {
  /* Position visible dialog near the top of the window */
  margin-top: 10vh;

  /* Sizing for visible dialog */
  width: 80%;
  max-width: 600px;

  /* Display properties for visible dialog*/
  border: solid 1px #999;
  border-radius: 8px;
  box-shadow: 0px 0px 20px 0px rgba(0, 0, 0, 0.3);
  background-color: white;
  padding: 20px;

  /* Animate when opening */
  animation-name: zoomIn;
  animation-duration: 150ms;
  animation-timing-function: ease;
}

#modal.closing {
  /* Animate when closing */
  animation-name: fadeOut;
  animation-duration: 150ms;
  animation-timing-function: ease;
}

#modal.closing > .modal-content {
  /* Animate when closing */
  animation-name: zoomOut;
  animation-duration: 150ms;
  animation-timing-function: ease;
}

@keyframes fadeIn {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}

@keyframes fadeOut {
  0% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}

@keyframes zoomIn {
  0% {
    transform: scale(0.9);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes zoomOut {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(0.9);
  }
}