@property --hue {
  syntax: "<number>";
  inherits: true;
  initial-value: 0;
}
@property --rotate {
  syntax: "<number>";
  inherits: true;
  initial-value: 0;
}
@property --bg-y {
  syntax: "<number>";
  inherits: true;
  initial-value: 0;
}
@property --bg-x {
  syntax: "<number>";
  inherits: true;
  initial-value: 0;
}
@property --glow-translate-y {
  syntax: "<number>";
  inherits: true;
  initial-value: 0;
}
@property --bg-size {
  syntax: "<number>";
  inherits: true;
  initial-value: 0;
}
@property --glow-opacity {
  syntax: "<number>";
  inherits: true;
  initial-value: 0;
}
@property --glow-blur {
  syntax: "<number>";
  inherits: true;
  initial-value: 0;
}
@property --glow-scale {
  syntax: "<number>";
  inherits: true;
  initial-value: 2;
}

@property --glow-radius {
  syntax: "<number>";
  inherits: true;
  initial-value: 2;
}

@property --white-shadow {
  syntax: "<number>";
  inherits: true;
  initial-value: 0;
}

:root {
  --debug: 0;
  --supported: 0;
  --not-supported: 0;
  --card-color: hsl(260deg 100% 3%);
  --text-color: hsl(260deg 10% 55%);
  --card-radius: 3.6vw;
  --card-width: 20vw;
  --border-width: 3px;
  --bg-size: 1;

  --hue: 0;
  --hue-speed: 1;

  --rotate: 0;
  --animation-speed: 4s;

  --interaction-speed: 0.55s;
  --glow-scale: 1.5;
  --scale-factor: 1;
  --glow-blur: 6; 
  --glow-opacity: 1; 
  --glow-radius: 100; 
  --glow-rotate-unit: 1deg;
}

.glow-card {
  /* width: var(--card-width);
  width: min(480px, var(--card-width)); */
  
  z-index: 2;
  cursor: pointer;

  &:hover {
    > div {
      /* mix-blend-mode: darken;
      --text-color: white; */
      box-shadow: 0 0 calc(var(--white-shadow) * 1vw)
        calc(var(--white-shadow) * 0.15vw) rgb(255 255 255 / 20%); 
       animation: shadow-pulse calc(var(--animation-speed) * 2) linear infinite;
      &:before {
        --bg-size: 15;
        /* animation-play-state: paused; */
        transition: --bg-size var(--interaction-speed) ease;
      }
    }
    .glow {
      --glow-blur: 1.5;
      --glow-opacity: 0.6;
      --glow-scale: 2.5;
      --glow-radius: 0;
      --rotate: 900;
      --glow-rotate-unit: 0;
      --scale-factor: 1.25;
      animation-play-state: paused;

      &:after {
        --glow-translate-y: 0;
        animation-play-state: paused;
        transition: --glow-translate-y 0s ease, --glow-blur 0.05s ease,
          --glow-opacity 0.05s ease, --glow-scale 0.05s ease,
          --glow-radius 0.05s ease;
      }
    }
  }

  &:before,
  &:after {
    content: "";
    display: block;
    position: absolute;
    width: 100%;
    height: 100%;
    /* border-radius: var(--card-radius); */
  }

  > div {
    position: absolute;
    width: 100%;
    height: 100%;
    /* background: var(--card-color); */
    /* border-radius: calc(calc(var(--card-radius) * 0.9)); */
    /* display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    text-transform: uppercase; */
    /* font-stretch: 150%;
    font-size: 18px;
    font-size: clamp(1.5vw, 1.5vmin, 32px);
    color: var(--text-color);
    padding: calc(var(--card-width) / 8); */

    /* span {
      display: inline-block;
      padding: 0.25em;
      border-radius: 4px;
      background: var(--text-color);
      color: black;
      margin-right: 8px;
      font-weight: 900;
    } */

    &:before {
      content: "";
      display: block;
      position: absolute;
      width: 100%;
      height: 100%;
      /* border-radius: 16px; */
      box-shadow: 0 0 20px black;
      mix-blend-mode: color-burn;
      z-index: -1;
      background: hsl(0deg 0% 16%)
        radial-gradient(
          30% 30% at calc(var(--bg-x) * 1%) calc(var(--bg-y) * 1%),
          hsl(calc(calc(var(--hue) * var(--hue-speed)) * 1deg) 100% 90%)
            calc(0% * var(--bg-size)),
          hsl(calc(calc(var(--hue) * var(--hue-speed)) * 1deg) 100% 80%)
            calc(20% * var(--bg-size)),
          hsl(calc(calc(var(--hue) * var(--hue-speed)) * 1deg) 100% 60%)
            calc(40% * var(--bg-size)),
          transparent 100%
        );
      width: calc(100% + var(--border-width));
      height: calc(100% + var(--border-width));
      animation: hue-animation var(--animation-speed) linear infinite,
        rotate-bg var(--animation-speed) linear infinite;
      transition: --bg-size var(--interaction-speed) ease;
    }
  }

  
}

@keyframes shadow-pulse {
  0%,
  24%,
  46%,
  73%,
  96% {
    --white-shadow: 0.5;
  }
  12%,
  28%,
  41%,
  63%,
  75%,
  82%,
  98% {
    --white-shadow: 2.5;
  }
  6%,
  32%,
  57% {
    --white-shadow: 1.3;
  }
  18%,
  52%,
  88% {
    --white-shadow: 3.5;
  }
}

@keyframes rotate-bg {
  0% {
    --bg-x: 0;
    --bg-y: 0;
  }

  25% {
    --bg-x: 100;
    --bg-y: 0;
  }

  50% {
    --bg-x: 100;
    --bg-y: 100;
  }

  75% {
    --bg-x: 0;
    --bg-y: 100;
  }

  100% {
    --bg-x: 0;
    --bg-y: 0;
  }
}
@keyframes rotate {
  from {
    --rotate: -70;
    --glow-translate-y: -65;
  }

  25% {
    --glow-translate-y: -65;
  }

  50% {
    --glow-translate-y: -65;
  }

  60%,
  75% {
    --glow-translate-y: -65;
  }

  85% {
    --glow-translate-y: -65;
  }

  to {
    --rotate: calc(360 - 70);
    --glow-translate-y: -65;
  }
}
@keyframes hue-animation {
  0% {
    --hue: 0;
  }
  100% {
    --hue: 360;
  }
}