.morphing-checkbox {
  --checkbox-size: 2.5em;
  --checkbox-color: #6366f1;
  --checkbox-color-hover: #4f46e5;
  --checkbox-shadow: rgba(99, 102, 241, 0.3);
  --checkmark-color: white;
  --cubic-bezier: cubic-bezier(0.16, 1, 0.3, 1);

  position: relative;
  display: inline-block;
  cursor: pointer;
  user-select: none;
}

.morphing-checkbox input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.checkbox-body {
  position: relative;
  width: var(--checkbox-size);
  height: var(--checkbox-size);
  perspective: 25em;
}

.cube {
  position: absolute;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform 0.6s var(--cubic-bezier);
}

.cube div {
  position: absolute;
  width: 100%;
  height: 100%;
  background-color: var(--checkbox-color);
  backface-visibility: hidden;
  border-radius: 0.3em;
  box-shadow: 0 0.2em 0.6em var(--checkbox-shadow);
  transform-style: preserve-3d;
}

.cube .front {
  transform: translateZ(calc(var(--checkbox-size) / 2));
}
.cube .back {
  transform: rotateY(180deg) translateZ(calc(var(--checkbox-size) / 2));
}
.cube .top {
  transform: rotateX(90deg) translateZ(calc(var(--checkbox-size) / 2));
}
.cube .bottom {
  transform: rotateX(-90deg) translateZ(calc(var(--checkbox-size) / 2));
}
.cube .left {
  transform: rotateY(-90deg) translateZ(calc(var(--checkbox-size) / 2));
}
.cube .right {
  transform: rotateY(90deg) translateZ(calc(var(--checkbox-size) / 2));
}

.morphing-checkbox:hover .cube div {
  background-color: var(--checkbox-color-hover);
}

.morphing-checkbox input:checked + .checkbox-body .cube {
  transform: rotateY(180deg) rotateZ(180deg);
}

.checkmark {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  width: 60%;
  height: 60%;
  fill: none;
  stroke: var(--checkmark-color);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 24;
  stroke-dashoffset: 24;
  z-index: 2;
  pointer-events: none;
}

.morphing-checkbox input:checked + .checkbox-body .checkmark {
  animation: check-animation 0.5s var(--cubic-bezier) forwards 0.3s;
}

@keyframes check-animation {
  0% {
    transform: translate(-50%, -50%) scale(0);
    stroke-dashoffset: 24;
  }
  50% {
    transform: translate(-50%, -50%) scale(1.2);
  }
  100% {
    transform: translate(-50%, -50%) scale(1);
    stroke-dashoffset: 0;
  }
}

.ripple {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.5);
  opacity: 0;
  z-index: 1;
  pointer-events: none;
}

.morphing-checkbox input:checked + .checkbox-body .ripple {
  animation: ripple 0.6s var(--cubic-bezier);
}

@keyframes ripple {
  0% {
    width: 0;
    height: 0;
    opacity: 0.5;
  }
  100% {
    width: 200%;
    height: 200%;
    opacity: 0;
  }
}

.morphing-checkbox input:focus + .checkbox-body::after {
  content: "";
  position: absolute;
  top: -0.3em;
  left: -0.3em;
  right: -0.3em;
  bottom: -0.3em;
  border-radius: 0.6em;
  border: 0.15em solid rgba(99, 102, 241, 0.4);
  pointer-events: none;
  opacity: 0;
  animation: focus-animation 0.3s var(--cubic-bezier) forwards;
}

@keyframes focus-animation {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.morphing-checkbox:active .cube {
  transform: scale(0.9);
}

.morphing-checkbox input:checked:active + .checkbox-body .cube {
  transform: scale(0.9) rotateY(180deg) rotateZ(180deg);
}