#backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: red;
  /* background-color: rgba(0, 0, 0, 0.7); */
  z-index: 2;
  display: none;
}

/* #modal-window {
  visibility: hidden;
} */

/* from: https://medium.com/@josephat94/a-simple-but-awesome-animation-with-css3-for-your-modals-eb24ebe4ab99 */
.shadow {
  z-index: 1;
  position: fixed; /* if 'absolute', height doesn't extend to full page */
  top: 0px;
  left: 0px;
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0.6);
  /* background-color: red; */
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Max's code */
.modal-content {
  position: fixed;
  top: 12%;
  left: 5%;
  width: 90%;
  background-color: rgb(243, 241, 241);
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);

  /* see: https://medium.com/@ResearchNowEng/making-perfectly-sized-centered-scrollable-modals-a36da09b68e6 */
  overflow: auto;
  max-height: calc(100vh - 125px);

  /* z-index: 2;
  display: none; */
  /* transition: opacity 2000ms ease-in; */

  /* z-index: -1;
  opacity: 0;
  transform: scale(0); */
}

/* NB: NB: NB: */
/* Because **CASCADING** Style Sheets... */
/* !! .hideModal rule must come before .showModal rule !! */
/* NB: NB: NB: */
.initModalClosed {
  z-index: -1;
  opacity: 0;
  /* animation: hide 0.75s ease-in; */
  transform: scale(0);
}

.hideModal {
  z-index: -1;
  opacity: 0;
  animation: hide 0.75s ease-in;
  transform: scale(0);
}
@keyframes hide {
  from {
    z-index: 2;
    transform: scale(1);
    opacity: 1;
  }
  to {
    z-index: -1;
    transform: scale(0);
    opacity: 0;
  }
}

.showModal {
  opacity: 1;
  z-index: 2;
  animation: show 0.75s ease-in;
  transform: scale(1);
}
@keyframes show {
  from {
    opacity: 0;
    z-index: -1;
    transform: scale(0);
  }
  to {
    opacity: 1;
    z-index: 2;
    transform: scale(1);
  }
}

/* .openModal {
  z-index: 2;
  opacity: 1;
  animation: open 0.75s ease-in;
  transform: scale(1);
  display: none;
}
@keyframes open {
  from {
    transform: scale(0);
    opacity: 0;
    z-index: -1;
    display: none;
  }
  to {
    transform: scale(1);
    opacity: 1;
    z-index: 2;
    display: block;
  }
} */

/* see: https://medium.com/@ResearchNowEng/making-perfectly-sized-centered-scrollable-modals-a36da09b68e6 */
/* .modal {
  position: fixed;
  top: 50%;
  left: 50%;
  width: 38rem;
  box-sizing: border-box;
  transform: translate(-50%, -50%);
  z-index: 2;
} */

.modal-content-title {
  position: sticky;
  top: 0;
  left: 0;
  font-size: 2.5rem;
  text-align: center;
  padding: 1rem 0;
  margin-bottom: 1rem;
  /* color: #2b3629; */
  color: rgb(237, 240, 252);
  background-color: rgba(43, 137, 226, 0.95);
}

/* .modal-content-paras { */
/* overflow-y: scroll; */
/* padding: 5rem; */
/* } */

.modal-content-paras h3 {
  font-size: 1.5rem;
  padding: 0 2.5rem;
  margin-top: 0.75rem;
}

.modal-content-para {
  font-size: 1.5rem;
  padding: 0 2.5rem;
  padding-bottom: 0.618rem;
  color: #3a3a3a;
  /* line-height: 2.5rem; */
}

/* Insert item name (e.g., pH, Alkalinity...) as needed */
.insert-item {
  font-weight: bold;
  color: rgb(55, 25, 221);
}

.modal-content-btn {
  text-align: center;
}

.btn {
  font: inherit;
  font-size: 1.5rem;
  padding: 0.25rem 2.5rem;
  margin: 1rem 2rem 2rem 0;

  color: #8b8a8a;
  border-color: transparent;
  border-radius: 4px;
  cursor: pointer;
}

/* .modal-close-btn {
  color: #8b8a8a;
  border-color: transparent;
  border-radius: 4px;
  cursor: pointer;
} */

.modal-close-btn:hover {
  background-color: rgb(156, 203, 247);
  color: #292929;
}

/* .modal-deeper-info-btn {
  color: #8b8a8a;
  border-color: transparent;
  border-radius: 4px;
  cursor: pointer;
} */

.modal-deeper-info-btn:hover {
  background-color: rgb(191, 155, 221);
  color: #292929;
}

/* MEDIA QUERIES */
/* to accommodate Surface Duo */
/* @media (min-width: 720px) { */
/* @media (min-width: 48rem) { */
@media (min-width: 768px) {
  .modal {
    left: calc(50% - 30rem);
    width: 60rem;
    /* transition: opacity 2000ms ease-in; */
  }
}