.backdrop {
  background-color: rgba(0, 0, 0, .2);
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
}
.backdrop--light {
  display: block;
  z-index: 1;
}
.backdrop--medium {
  display: block;
  z-index: 10;
}
.backdrop--strong {
  display: block;
  z-index: 100;
}
.backdrop--dark {
  background-color: rgba(0, 0, 0, .6);
}
@media (max-width: 68em) {
  .backdrop--menu {
    display: block;
    z-index: 10;
  }
}

.general-popup {
  background-color: var(--social-background);
  opacity: 0;
  position: fixed;
  top: 0;
  left: 0;
  transform: scale(0);
  transition: opacity, transform, visibility, 350ms ease;
  visibility: hidden;
  width: 100vw;
  z-index: 1000;
}
.general-popup.is-open {
  opacity: 1;
  transform: scale(1);
  transition: opacity, transform, visibility, 350ms ease;
  visibility: visible;
}
@media (orientation: landscape), (min-width: 45em) {
  .general-popup.is-open {
    width: 50vw;
  }
}
.general-popup > .general-popup__content {
  box-shadow: 0 0 .8em .4em var(--light-red);
  visibility: hidden;
  width: 100%;
}
.general-popup__close {
  background-color: var(--social-background);
  border: none;
  border-radius: 1em;
  color: hsla(0, 0%, 75%, .8);
  cursor: pointer;
  font-size: .9em;
  position: absolute;
  top: 1em;
  right: 1em;
  transition: all 450ms linear;
  width: 2em;
  height: 2em;
}
.general-popup__close:hover {
  background-color: var(--media-background-dark);
  transform: scale(1.1);
  transition: all 150ms linear;
}