.ui-bookmark {
  --icon-size: 24px;
  --icon-secondary-color: rgb(77, 77, 77);
  --icon-hover-color: rgb(97, 97, 97);
  --icon-primary-color: rgb(252, 54, 54);
  --icon-circle-border: 1px solid var(--icon-primary-color);
  --icon-circle-size: 35px;
  --icon-anmt-duration: 0.3s;
}

.ui-bookmark input {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  display: none;
}

.ui-bookmark .bookmark {
  width: var(--icon-size);
  height: auto;
  fill: var(--icon-secondary-color);
  cursor: pointer;
  -webkit-transition: 0.2s;
  -o-transition: 0.2s;
  transition: 0.2s;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  position: relative;
  -webkit-transform-origin: top;
  -ms-transform-origin: top;
  transform-origin: top;
}

.bookmark::after {
  content: "";
  position: absolute;
  width: 10px;
  height: 10px;
  -webkit-box-shadow: 0 30px 0 -4px var(--icon-primary-color),
    30px 0 0 -4px var(--icon-primary-color),
    0 -30px 0 -4px var(--icon-primary-color),
    -30px 0 0 -4px var(--icon-primary-color),
    -22px 22px 0 -4px var(--icon-primary-color),
    -22px -22px 0 -4px var(--icon-primary-color),
    22px -22px 0 -4px var(--icon-primary-color),
    22px 22px 0 -4px var(--icon-primary-color);
  box-shadow: 0 30px 0 -4px var(--icon-primary-color),
    30px 0 0 -4px var(--icon-primary-color),
    0 -30px 0 -4px var(--icon-primary-color),
    -30px 0 0 -4px var(--icon-primary-color),
    -22px 22px 0 -4px var(--icon-primary-color),
    -22px -22px 0 -4px var(--icon-primary-color),
    22px -22px 0 -4px var(--icon-primary-color),
    22px 22px 0 -4px var(--icon-primary-color);
  border-radius: 50%;
  -webkit-transform: scale(0);
  -ms-transform: scale(0);
  transform: scale(0);
  padding: 1px;
}

.bookmark::before {
  content: "";
  position: absolute;
  border-radius: 50%;
  border: var(--icon-circle-border);
  opacity: 0;
}

/* actions */

.ui-bookmark:hover .bookmark {
  fill: var(--icon-hover-color);
}

.ui-bookmark input:checked + .bookmark::after {
  -webkit-animation: circles var(--icon-anmt-duration)
    cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
  animation: circles var(--icon-anmt-duration)
    cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
  -webkit-animation-delay: var(--icon-anmt-duration);
  animation-delay: var(--icon-anmt-duration);
}

.ui-bookmark input:checked + .bookmark {
  fill: var(--icon-primary-color);
  -webkit-animation: bookmark var(--icon-anmt-duration) forwards;
  animation: bookmark var(--icon-anmt-duration) forwards;
  -webkit-transition-delay: 0.3s;
  -o-transition-delay: 0.3s;
  transition-delay: 0.3s;
}

.ui-bookmark input:checked + .bookmark::before {
  -webkit-animation: circle var(--icon-anmt-duration)
    cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
  animation: circle var(--icon-anmt-duration)
    cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
  -webkit-animation-delay: var(--icon-anmt-duration);
  animation-delay: var(--icon-anmt-duration);
}

@-webkit-keyframes bookmark {
  50% {
    -webkit-transform: scaleY(0.6);
    transform: scaleY(0.6);
  }

  100% {
    -webkit-transform: scaleY(1);
    transform: scaleY(1);
  }
}

@keyframes bookmark {
  50% {
    -webkit-transform: scaleY(0.6);
    transform: scaleY(0.6);
  }

  100% {
    -webkit-transform: scaleY(1);
    transform: scaleY(1);
  }
}

@-webkit-keyframes circle {
  from {
    width: 0;
    height: 0;
    opacity: 0;
  }

  90% {
    width: var(--icon-circle-size);
    height: var(--icon-circle-size);
    opacity: 1;
  }

  to {
    opacity: 0;
  }
}

@keyframes circle {
  from {
    width: 0;
    height: 0;
    opacity: 0;
  }

  90% {
    width: var(--icon-circle-size);
    height: var(--icon-circle-size);
    opacity: 1;
  }

  to {
    opacity: 0;
  }
}

@-webkit-keyframes circles {
  from {
    -webkit-transform: scale(0);
    transform: scale(0);
  }

  40% {
    opacity: 1;
  }

  to {
    -webkit-transform: scale(0.8);
    transform: scale(0.8);
    opacity: 0;
  }
}

@keyframes circles {
  from {
    -webkit-transform: scale(0);
    transform: scale(0);
  }

  40% {
    opacity: 1;
  }

  to {
    -webkit-transform: scale(0.8);
    transform: scale(0.8);
    opacity: 0;
  }
}