/* Taken from
 * https://github.com/IanLunn/Hover
 */

/* Sweep to bottom */
.hvr-sweep-to-bottom {
  display: inline-block;
  vertical-align: middle;
  transform: perspective(1px) translateZ(0);
  box-shadow: 0 0 1px rgba(0, 0, 0, 0);
  position: relative;
  transition-property: color;
  transition-duration: 0.3s;
}
.hvr-sweep-to-bottom:before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--black);
  transform: scaleY(0);
  transform-origin: 50% 0;
  transition-property: transform;
  transition-duration: 0.3s;
  transition-timing-function: ease-out;
}
.hvr-sweep-to-bottom:hover, .hvr-sweep-to-bottom:focus, .hvr-sweep-to-bottom:active {
  color: white;
}
.hvr-sweep-to-bottom:hover:before, .hvr-sweep-to-bottom:focus:before, .hvr-sweep-to-bottom:active:before {
  transform: scaleY(1);
}


/* Sweep to top */
.hvr-sweep-to-top {
  display: inline-block;
  vertical-align: middle;
  transform: perspective(1px) translateZ(0);
  box-shadow: 0 0 1px rgba(0, 0, 0, 0);
  position: relative;
  transition-property: color;
  transition-duration: 0.3s;
}
.hvr-sweep-to-top:before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--white);
  transform: scaleY(0);
  transform-origin: 50% 100%;
  transition-property: transform;
  transition-duration: 0.2s;
  transition-timing-function: ease-out;
}
.hvr-sweep-to-top:hover, .hvr-sweep-to-top:focus, .hvr-sweep-to-top:active {
  color: white;
}
.hvr-sweep-to-top:hover:before, .hvr-sweep-to-top:focus:before, .hvr-sweep-to-top:active:before {
  transform: scaleY(1);
}