.flipclock {
  perspective: 400px;
  container-type: inline-size;
  
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 1cqi;
}

.flipclock__piece {
  display: block;
  text-align: center;
}

.flipclock__label {
  font-size: clamp(0px, 5cqi, 15px);
}

.flipclock__card {
  display: block;
  position: relative; 
  padding-bottom: 0.72em;
  line-height: 0.95;  
 /*  font-size: clamp(0px, 12cqi, 64px); */ 
  font-size: clamp(0px, 12cqi, 56px); 
}

.flipclock__card__top,
.flipclock__card__bottom,
.flipclock__card__back::before,
.flipclock__card__back::after {
  display: block;
  height: 0.72em;
  color: #ccc;
  background: #222;
  padding: 0.25em 0.25em;
  border-radius: 0.15em 0.15em 0 0;
  backface-visiblity: hidden;
  transform-style: preserve-3d;
  width: 1.8em;
  transform: translateZ(0);
}

.flipclock__wide .flipclock__card__top,
.flipclock__wide .flipclock__card__bottom,
.flipclock__wide  .flipclock__card__back::before,
.flipclock__wide .flipclock__card__back::after {
	width: 2.5em;
}

.flipclock__wider .flipclock__card__top,
.flipclock__wider .flipclock__card__bottom,
.flipclock__wider .flipclock__card__back::before,
.flipclock__wider .flipclock__card__back::after {
	width: 2.8em;
}

.flipclock__widest .flipclock__card__top,
.flipclock__widest .flipclock__card__bottom,
.flipclock__widest  .flipclock__card__back::before,
.flipclock__widest .flipclock__card__back::after {
	width: 3.4em;
}


.flipclock__card__bottom { 
  color: #FFF;
  position: absolute;
  top: 50%;
  left: 0;
  border-top: solid 1px #000;
  background: #393939; 
  border-radius: 0 0 0.15em 0.15em; 
  pointer-events: none;
  overflow: hidden;
}

.flipclock__card__bottom::after {
  display: block;
  margin-top: -0.72em;
}

.flipclock__card__back::before,
.flipclock__card__bottom::after {
  content: attr(data-value);
}

.flipclock__card__back {
  position: absolute;
  top: 0;
  height: 100%;
  left: 0%;
  pointer-events: none;
}

.flipclock__card__back::before {
  position: relative;
  z-index: -1;
  overflow: hidden;
}

.flipclock__flip .flipclock__card__back::before {
  animation: flipTop 0.3s cubic-bezier(.37,.01,.94,.35);
  animation-fill-mode: both;
  transform-origin: center bottom;
}

.flipclock__flip .flipclock__card__back .flipclock__card__bottom {
  transform-origin: center top;
  animation-fill-mode: both;
  animation: flipBottom 0.6s cubic-bezier(.15,.45,.28,1); 
}

@keyframes flipTop {
  0% {
    transform: rotateX(0deg);
    z-index: 2;
  }
  0%, 99% {
    opacity: 0.99;
  }
  100% {
    transform: rotateX(-90deg);
    opacity: 0;
  }
}

@keyframes flipBottom {
  0%, 50% {
    z-index: -1;
    transform: rotateX(90deg);
    opacity: 0;
  }
  51% {
    opacity: 0.99;
  }
  100% {
    opacity: 0.99;
    transform: rotateX(0deg);
    z-index: 5;
  }
}