:root {
  --pointer-x: 50%;
  --pointer-y: 50%;
  --card-scale: 1;
  --card-opacity: 0;
  --translate-x: 0px;
  --translate-y: 0px;
  --rotate-x: 0deg;
  --rotate-y: 0deg;
  --background-x: var(--pointer-x);
  --background-y: var(--pointer-y);
  --pointer-from-center: 0;
  --pointer-from-top: var(--pointer-from-center);
  --pointer-from-left: var(--pointer-from-center);
}

:root {
  --card-edge: hsl(47, 100%, 78%);
  --card-back: hsl(205, 100%, 25%);
  --card-glow: hsl(175, 100%, 90%);

  --sunpillar-1: hsl(2, 100%, 73%);
  --sunpillar-2: hsl(53, 100%, 69%);
  --sunpillar-3: hsl(93, 100%, 69%);
  --sunpillar-4: hsl(176, 100%, 76%);
  --sunpillar-5: hsl(228, 100%, 74%);
  --sunpillar-6: hsl(283, 100%, 73%);

  --sunpillar-clr-1: var(--sunpillar-1);
  --sunpillar-clr-2: var(--sunpillar-2);
  --sunpillar-clr-3: var(--sunpillar-3);
  --sunpillar-clr-4: var(--sunpillar-4);
  --sunpillar-clr-5: var(--sunpillar-5);
  --sunpillar-clr-6: var(--sunpillar-6);
}

.card {
  --grain: url("assets/img/grain.webp");
  --glitter: url("assets/img/glitter.png");
  --glittersize: 25%;
  --space: 5%;
  --angle: 133deg;
  --imgsize: cover;

  --red: #f80e35;
  --yellow: #eedf10;
  --green: #21e985;
  --blue: #0dbde9;
  --violet: #c929f1;

  --clip: inset(9.85% 8% 52.85% 8%);
  --clip-invert: polygon(
    0% 0%,
    100% 0%,
    100% 100%,
    0% 100%,
    0 47.15%,
    91.5% 47.15%,
    91.5% 9.85%,
    8% 9.85%,
    8% 47.15%,
    0 50%
  );

  --clip-stage: polygon(
    91.5% 9.85%,
    57% 9.85%,
    54% 12%,
    17% 12%,
    16% 14%,
    12% 16%,
    8% 16%,
    8% 47.15%,
    92% 47.15%
  );
  --clip-stage-invert: polygon(
    0% 0%,
    100% 0%,
    100% 100%,
    0% 100%,
    0 47.15%,
    91.5% 47.15%,
    91.5% 9.85%,
    57% 9.85%,
    54% 12%,
    17% 12%,
    16% 14%,
    12% 16%,
    8% 16%,
    8% 47.15%,
    0 50%
  );

  --clip-trainer: inset(14.5% 8.5% 48.2% 8.5%);
  --clip-borders: inset(2.8% 4% round 2.55% / 1.5%);
}

.card_shine,
.card_glare {
  will-change: transform, opacity, background-image, background-size,
    background-position, background-blend-mode, filter;
}

.card {
  -webkit-transform: translate3d(0px, 0px, 0.01px);
  transform: translate3d(0px, 0px, 00.01px);
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d;
  z-index: calc(var(--card-scale) * 2);
  will-change: transform, visibility, z-index;
}

.card,
.card * {
  outline: 1px solid transparent;
}

.card,
.card_rotator {
  aspect-ratio: var(--card-aspect);
  border-radius: var(--card-radius);
}

.card.interacting {
  z-index: calc(var(--card-scale) * 120);
}

.card.active .card_translater,
.card.active .card_rotator {
  /* prevent pinch/double-tap zooms on card */
  touch-action: none;
}

.card_translater,
.card_rotator {
  display: grid;
  perspective: 600px;
  will-change: transform, box-shadow;
  transform-origin: center;
  -webkit-transform-origin: center;
  transform-style: preserve-3d;
}

.card_translater {
  width: auto;
  position: relative;
  -webkit-transform: translate3d(var(--translate-x), var(--translate-y), 0.1px)
    scale(var(--card-scale));
  transform: translate3d(var(--translate-x), var(--translate-y), 0.1px)
    scale(var(--card-scale));
}

.card_rotator {
  -webkit-transform: rotateY(var(--rotate-x)) rotateX(var(--rotate-y));
  -webkit-transform-style: preserve-3d;
  transform: rotateY(var(--rotate-x)) rotateX(var(--rotate-y));

  pointer-events: auto;
}

button.card_rotator {
  border: none;
  background: transparent;
  padding: 0;
  -webkit-appearance: none;
  appearance: none;
}

.card_rotator,
.card.active .card_rotator:focus {
  transition: box-shadow 0.4s ease, opacity 0.33s ease-out;
  box-shadow: 0 0 3px -1px transparent, 0 0 2px 1px transparent,
    0 0 5px 0px transparent, 0px 10px 20px -5px black, 0 2px 15px -5px black,
    0 0 20px 0px transparent;
}

.card.active .card_rotator,
.card_rotator:focus {
  box-shadow: 0 0 3px -1px white, 0 0 3px 1px var(--card-edge),
    0 0 12px 2px var(--card-glow), 0px 10px 20px -5px black,
    0 0 40px -30px var(--card-glow), 0 0 50px -20px var(--card-glow);
}

.card_rotator * {
  width: 100%;
  display: grid;
  grid-area: 1/1;
  aspect-ratio: var(--card-aspect);
  border-radius: var(--card-radius);
  image-rendering: optimizeQuality;
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d;
  pointer-events: none;
  overflow: hidden;
}

.card_rotator img {
  height: auto;
}
.card_rotator img:not(.card_back) {
  -webkit-transform: translate3d(0px, 0px, 0.01px);
  transform: translate3d(0px, 0px, 0.01px);
}

.card_back {
  background-color: var(--card-back);
  -webkit-transform: rotateY(180deg) translateZ(1px);
  transform: rotateY(180deg) translateZ(1px);
  backface-visibility: visible;
}

.card_front,
.card_front * {
  backface-visibility: hidden;
}

.card_front {
  opacity: 1;
  transition: opacity 0.33s ease-out;
  -webkit-transform: translate3d(0px, 0px, 0.01px);
  transform: translate3d(0px, 0px, 0.01px);
}

.card_shine {
  display: grid;
  transform: translateZ(1px);
  overflow: hidden;
  z-index: 3;

  background: transparent;
  background-size: cover;
  background-position: center;

  filter: brightness(0.85) contrast(2.75) saturate(0.65);
  mix-blend-mode: color-dodge;

  opacity: var(--card-opacity);
}

.card_shine::before,
.card_shine::after {
  --sunpillar-clr-1: var(--sunpillar-5);
  --sunpillar-clr-2: var(--sunpillar-6);
  --sunpillar-clr-3: var(--sunpillar-1);
  --sunpillar-clr-4: var(--sunpillar-2);
  --sunpillar-clr-5: var(--sunpillar-3);
  --sunpillar-clr-6: var(--sunpillar-4);

  grid-area: 1/1;
  transform: translateZ(1px);
  border-radius: var(--card-radius);
}

.card_shine:after {
  --sunpillar-clr-1: var(--sunpillar-6);
  --sunpillar-clr-2: var(--sunpillar-1);
  --sunpillar-clr-3: var(--sunpillar-2);
  --sunpillar-clr-4: var(--sunpillar-3);
  --sunpillar-clr-5: var(--sunpillar-4);
  --sunpillar-clr-6: var(--sunpillar-5);

  transform: translateZ(1.2px);
}

.card_glare {
  transform: translate(1.41px);
  overflow: hidden;

  background-image: radial-gradient(
    farthest-corner circle at var(--pointer-x) var(--pointer-y),
    hsla(0, 0%, 100%, 0.8) 10%,
    hsla(0, 0%, 100%, 0.65) 20%,
    hsla(0, 0%, 0%, 0.5) 90%
  );

  opacity: var(--card-opacity);
  mix-blend-mode: overlay;
}

.card.masked .card_shine,
.card.masked .card_shine:before,
.card.masked .card_shine:after {
  -webkit-mask-image: var(--mask);
  mask-image: var(--mask);
  -webkit-mask-size: cover;
  mask-size: cover;
  -webkit-mask-position: center center;
  mask-position: center center;
}