:root {
  --color1: rgb(0, 231, 255);
  --color2: rgb(255, 0, 231);
  --aws1: #fac;
  --aws2: #ddccaa;
  --awsfront: url(/assets/images/certs/aws.png);
  --mern1: #54a29e;
  --mern2: #a79d66;
  --mernfront: url(/assets/images/certs/mern.png);
  --freea1: #efb2fb;
  --freea2: #acc6f8;
  --freeafront: url(/assets/images/certs/freea.png);
  --cisco1: #efb2fb;
  --cisco2: #acc6f8;
  --ciscofront: url(/assets/images/certs/cisco.png);
}

.card {
  width: 200px;
  height: 300px;
  position: relative;
  overflow: hidden;
  margin: 20px;
  overflow: hidden;
  z-index: 10;
  touch-action: none;
  cursor: pointer;
  border-radius: 5% / 3.5%;
  box-shadow: -5px -5px 5px -5px var(--color1), 5px 5px 5px -5px var(--color2),
    -7px -7px 10px -5px transparent, 7px 7px 10px -5px transparent,
    0 0 5px 0px rgba(255, 255, 255, 0), 0 55px 35px -20px rgba(0, 0, 0, 0.5);

  transition: transform 0.5s ease, box-shadow 0.2s ease;
  will-change: transform, filter;

  background-color: #040712;
  background-image: var(--front);
  background-size: cover;
  background-repeat: no-repeat;
  background-position: 50% 50%;
  transform-origin: center;
}

@media screen and (min-width: 750px) {
  .card {
    width: 17vw;
    height: 24vw;
  }
}

.card:hover {
  box-shadow: -20px -20px 30px -25px var(--color1),
    20px 20px 30px -25px var(--color2), -7px -7px 10px -5px var(--color1),
    7px 7px 10px -5px var(--color2), 0 0 13px 4px rgba(255, 255, 255, 0.3),
    0 55px 35px -20px rgba(0, 0, 0, 0.5);
}

.card.aws {
  --color1: var(--aws1);
  --color2: var(--aws2);
  --front: var(--awsfront);
}
.card.mern {
  --color1: var(--mern1);
  --color2: var(--mern2);
  --front: var(--mernfront);
}
.card.cisco {
  --color1: var(--cisco1);
  --color2: var(--cisco2);
  --front: var(--ciscofront);
}
.card.freea {
  --color1: #ec9bb6;
  --color2: #ccac6f;
  --color3: #69e4a5;
  --color4: #8ec5d6;
  --color5: #b98cce;
  --front: var(--freeafront);
}

.card:before,
.card:after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  top: 0;
  background-repeat: no-repeat;
  opacity: 0.5;
  mix-blend-mode: color-dodge;
  transition: all 0.33s ease;
}

.card:before {
  background-position: 50% 50%;
  background-size: 300% 300%;
  background-image: linear-gradient(
    115deg,
    transparent 0%,
    var(--color1) 25%,
    transparent 47%,
    transparent 53%,
    var(--color2) 75%,
    transparent 100%
  );
  opacity: 0.5;
  filter: brightness(0.5) contrast(1);
  z-index: 1;
}

.card:after {
  opacity: 1;
  /* background-image: url("https://assets.codepen.io/13471/sparkles.gif"), 
      url(https://assets.codepen.io/13471/holo.png), 
      linear-gradient(125deg, #ff008450 15%, #fca40040 30%, #ffff0030 40%, #00ff8a20 60%, #00cfff40 70%, #cc4cfa50 85%); */
  /* background: linear-gradient(125deg, #ff008450 15%, #fca40040 30%, #ffff0030 40%, #00ff8a20 60%, #00cfff40 70%, #cc4cfa50 85%); */
  background-position: 50% 50%;
  background-size: 160%;
  background-blend-mode: overlay;
  z-index: 2;
  filter: brightness(1) contrast(1);
  transition: all 0.33s ease;
  mix-blend-mode: color-dodge;
  opacity: 0.75;
}

.card.active:after,
.card:hover:after {
  filter: brightness(1) contrast(1);
  opacity: 1;
}

.card.active,
.card:hover {
  animation: none;
  transition: box-shadow 0.1s ease-out;
}

.card.active:before,
.card:hover:before {
  animation: none;
  background-image: linear-gradient(
    110deg,
    transparent 25%,
    var(--color1) 48%,
    var(--color2) 52%,
    transparent 75%
  );
  background-position: 50% 50%;
  background-size: 250% 250%;
  opacity: 0.88;
  filter: brightness(0.66) contrast(1.33);
  transition: none;
}

.card.active:before,
.card:hover:before,
.card.active:after,
.card:hover:after {
  animation: none;
  transition: none;
}

.card.animated {
  transition: none;
  animation: holoCard 12s ease 0s 1;
}

.card.animated ::before {
  transition: none;
  animation: holoGradient 12s ease 0s 1;
}

.card.animated ::after {
  transition: none;
  animation: holoSparkle 12s ease 0s 1;
}

@keyframes holoSparkle {
  0%,
  100% {
    opacity: 0.75;
    background-position: 50% 50%;
    filter: brightness(1.2) contrast(1.25);
  }
  5%,
  8% {
    opacity: 1;
    background-position: 40% 40%;
    filter: brightness(0.8) contrast(1.2);
  }
  13%,
  16% {
    opacity: 0.5;
    background-position: 50% 50%;
    filter: brightness(1.2) contrast(0.8);
  }
  35%,
  38% {
    opacity: 1;
    background-position: 60% 60%;
    filter: brightness(1) contrast(1);
  }
  55% {
    opacity: 0.33;
    background-position: 45% 45%;
    filter: brightness(1.2) contrast(1.25);
  }
}

@keyframes holoGradient {
  0%,
  100% {
    opacity: 0.5;
    background-position: 50% 50%;
    filter: brightness(0.5) contrast(1);
  }
  5%,
  9% {
    background-position: 100% 100%;
    opacity: 1;
    filter: brightness(0.75) contrast(1.25);
  }
  13%,
  17% {
    background-position: 0% 0%;
    opacity: 0.88;
  }
  35%,
  39% {
    background-position: 100% 100%;
    opacity: 1;
    filter: brightness(0.5) contrast(1);
  }
  55% {
    background-position: 0% 0%;
    opacity: 1;
    filter: brightness(0.75) contrast(1.25);
  }
}

@keyframes holoCard {
  0%,
  100% {
    transform: rotateZ(0deg) rotateX(0deg) rotateY(0deg);
  }
  5%,
  8% {
    transform: rotateZ(0deg) rotateX(6deg) rotateY(-20deg);
  }
  13%,
  16% {
    transform: rotateZ(0deg) rotateX(-9deg) rotateY(32deg);
  }
  35%,
  38% {
    transform: rotateZ(3deg) rotateX(12deg) rotateY(20deg);
  }
  55% {
    transform: rotateZ(-3deg) rotateX(-12deg) rotateY(-27deg);
  }
}

.card.freea:hover {
  box-shadow: 0 0 30px -5px white, 0 0 10px -2px white,
    0 55px 35px -20px rgba(0, 0, 0, 0.5);
}
.card.freea:hover:before,
.card.freea.active:before {
  background-image: linear-gradient(
    115deg,
    transparent 20%,
    var(--color1) 36%,
    var(--color2) 43%,
    var(--color3) 50%,
    var(--color4) 57%,
    var(--color5) 64%,
    transparent 80%
  );
}

.demo .card {
  background-image: var(--back);
  font-size: 2vh;
}
.demo .card > span {
  position: relative;
  top: 45%;
}

.demo .card:nth-of-type(1),
.demo .card:nth-of-type(2),
.demo .card:nth-of-type(3) {
  width: 20vh;
  height: 27.5vh;
  box-shadow: inset 0 0 0 1px rgba(white, 0.4),
    0 25px 15px -10px rgba(0, 0, 0, 0.5);
  animation: none;
}

.demo .card:nth-of-type(1)::after,
.demo .card:nth-of-type(1)::before,
.demo .card:nth-of-type(2)::after,
.demo .card:nth-of-type(2)::before,
.demo .card:nth-of-type(3)::after,
.demo .card:nth-of-type(3)::before {
  animation: none;
}

.demo .card:nth-of-type(1)::after,
.demo .card:nth-of-type(1)::before {
  display: none;
}
.demo .card:nth-of-type(2) {
  background: none;
}

.demo .card:nth-of-type(2) ::before {
  display: none;
}

.demo .card:nth-of-type(3) {
  background: none;
}

.demo .card:nth-of-type(3) ::after {
  display: none;
}

.operator {
  display: inline-block;
  vertical-align: middle;
  font-size: 6vh;
}

#app {
  position: relative;
  z-index: 100;
}

.demo,
.cards {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-evenly;
  perspective: 2000px;
  position: relative;
  z-index: 1;
  transform: translate3d(0.1px, 0.1px, 0.1px);
}
.demo {
  flex-direction: row;
  justify-content: center;
}

@media screen and (min-width: 600px) {
  .cards {
    flex-direction: row;
  }
}

.cards .card:nth-child(2) {
  animation-delay: 0.25s;
}

.cards .card:nth-child(2)::before {
  animation-delay: 0.25s;
}

.cards .card:nth-child(2)::after {
  animation-delay: 0.25s;
}

.cards .card:nth-child(3) {
  animation-delay: 0.5s;
}

.cards .card:nth-child(3)::before {
  animation-delay: 0.5s;
}

.cards .card:nth-child(3)::after {
  animation-delay: 0.5s;
}

.cards .card:nth-child(4) {
  animation-delay: 0.75s;
}

.cards .card:nth-child(4)::before {
  animation-delay: 0.75s;
}

.cards .card:nth-child(4)::after {
  animation-delay: 0.75s;
}