* {
  margin: 0;
  padding: 0;

  --size: 20vh;
  --alpha: 0.65;
  --invert-color: invert(100%);
  --backlight: url('#backlight');
}

body {
  width: 100vw;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: dimgray;
}

.cube-container {
  filter: var(--backlight);
  height: var(--size);
  width: var(--size);
}

.cube {
  transform-style: preserve-3d;
  transform-origin: center;
  height: 100%;
  width: 100%;
  /* pointer event from children */
  pointer-events: none;
  transition: transform 0.8s 50ms linear;
  transform: rotateX(0deg) rotateY(0deg);
}

.rotate {
  animation: rotate 10s infinite linear;
}

@keyframes rotate {
  0% {
    transform: rotateX(0deg) rotateY(0deg);
  }

  100% {
    transform: rotateX(360deg) rotateY(360deg);
  }
}

.face {
  position: absolute;
  width: var(--size);
  height: var(--size);
  transform-style: flat;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  /* pointer event to parent */
  pointer-events: auto;
  transition: transform 0.5s 200ms linear;
}

/* CV */
.top {
  background-color: rgba(29 161 242 / var(--alpha));
  transform: rotateX(90deg) translate3d(0, 0, calc(var(--size) / 2));
}

.active .top,
.cube:hover .top {
  transform: translate3d(0, calc(-1 * var(--size)), 0);
}

/* SOURCE CODE */
.bottom {
  background-color: rgba(255 0 0 / var(--alpha));
  transform: rotateX(90deg) translate3d(0, 0, calc(var(--size) / -2));
}

.active .bottom,
.cube:hover .bottom {
  transform: rotateX(0deg) translate3d(0, var(--size), 0);
}

/* github */
.left {
  background-color: rgba(225 225 0 / var(--alpha));
  transform: rotateY(-90deg) translate3d(0, 0, calc(var(--size) / 2));
}

.active .left,
.cube:hover .left {
  transform: translate3d(calc(-1 * var(--size)), 0, 0);
}

/* PHONE */
.right {
  background-color: rgba(0 204 0 / var(--alpha));
  transform: rotateY(-90deg) translate3d(0, 0, calc(var(--size) / -2));
}

.active .right,
.cube:hover .right {
  transform: translate3d(var(--size), 0, 0);
}

/* MAILTO */
.front {
  background-color: rgb(81 101 246 / var(--alpha));
  transform: translate3d(0, 0, calc(var(--size) / 2));
  transform-origin: right;
}

.front div img {
  transform: rotateY(180deg);
}

.active .front,
.cube:hover .front {
  transform: translate3d(var(--size), 0, 0) rotateY(180deg);
}

/* linkedin */
.back {
  background-color: rgba(12 100 197 / var(--alpha));
  transform: translate3d(0, 0, calc(var(--size) / -2));
}

.active .back,
.cube:hover .back {
  transform: translate3d(0, 0, 0);
}

.logo-container {
  height: 80%;
  pointer-events: none;
}

.logo {
  height: 100%;
  filter: var(--invert-color) var(--backlight);
  pointer-events: none;
}

.select {
  --alpha: 1;
}

.selectDisable {
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -o-user-select: none;
  user-select: none;
}

/* Small screens */
@media (max-width: 800px) {
  * {
    --size: 15vh
  }
  .cube {
    rotate: 90deg;
  }

  .logo {
    rotate: -90deg;
  }

.front div img {
  transform: rotateX(180deg);
}
}