.toggle-cont {
  --primary: #54a8fc;
  --light: #d9d9d9;
  --dark: #121212;
  --gray: #414344;

  position: fixed; 
  top: 1rem;
  left: 1rem;
  z-index: 100;

  width: fit-content;
  height: 25px; 

  
}

.toggle-cont .toggle-label {
  --gap: 3px;
  --width: 25px;

  cursor: pointer;

  position: relative;
  display: inline-block;

  padding: 0.3rem;
  width: calc((var(--width) + var(--gap)) * 2);
  height: 100%;
  background-color: transparent;

  border: 1px solid #777777;
  border-bottom: 0;
  border-radius: 9999px;
  box-sizing: content-box;
  transition: all 0.3s ease-in-out;
}



.toggle-cont .toggle-input {
  display: none;
}


.toggle-label::before {
  content: "";

  position: absolute;
  z-index: -10;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);

  width: calc(100% + 1.2rem);
  height: calc(100% + 1.2rem);
  

  transition: all 0.3s ease-in-out;
}
.toggle-label::after {
  content: "";

  position: absolute;
  z-index: -10;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);

  width: 100%;
  height: 100%;
  background-image: radial-gradient(
    circle at 50% -100%,
    rgb(58, 155, 252) 0%,
    rgba(12, 12, 12, 1) 80%
  );

  border-radius: 9999px;
}



.toggle-cont .toggle-label .cont-icon {
  position: relative;

  display: flex;
  justify-content: center;
  align-items: center;

  position: relative;
  width: var(--width);
  height: 25px;
  background-image: radial-gradient(
    circle at 50% 0%,
    #666666 0%,
    var(--gray) 100%
  );

  border: 1px solid #aaaaaa;
  border-bottom: 0;
  border-radius: 9999px;
  box-shadow: inset 0 -0.15rem 0.15rem var(--primary),
    inset 0 0 0.5rem 0.75rem var(--second);

  transition: transform 0.3s ease-in-out;
}

.cont-icon {
  overflow: clip;
  position: relative;
}

.cont-icon .sparkle {
  position: absolute;
  top: 50%;
  left: 50%;

  display: block;

  width: calc(var(--width) * 1px);
  aspect-ratio: 1;
  background-color: var(--light);

  border-radius: 50%;
  transform-origin: 50% 50%;
  rotate: calc(1deg * var(--deg));
  transform: translate(-50%, -50%);
  animation: sparkle calc(100s / var(--duration)) linear
    calc(0s / var(--duration)) infinite;
}

@keyframes sparkle {
  to {
    width: calc(var(--width) * 0.5px);
    transform: translate(2000%, -50%);
  }
}




.cont-icon .icon {
  width: 0.7rem; 
  fill: var(--light);
}

.toggle-cont:has(.toggle-input:checked) {
  --checked: true;
}

@container style(--checked: true) {
  .toggle-cont .toggle-label {
    background-color: #41434400;

    border: 1px solid #3d6970;
    border-bottom: 0;
  }

  .toggle-cont .toggle-label::before {
    box-shadow: 0 1rem 2.5rem -2rem #0080ff;
  }

  .toggle-cont .toggle-label .cont-icon {
    overflow: visible;

    background-image: radial-gradient(
      circle at 50% 0%,
      #045ab1 0%,
      var(--primary) 100%
    );

    border: 1px solid var(--primary);
    border-bottom: 0;

    transform: translateX(calc((var(--gap) * 2) + 100%)) rotate(-225deg);
  }

  .toggle-cont .toggle-label .cont-icon .sparkle {
    z-index: -10;

    width: calc(var(--width) * 1.5px);
    background-color: #acacac;

    animation: sparkle calc(100s / var(--duration)) linear
      calc(10s / var(--duration)) infinite;
  }

  @keyframes sparkle {
    to {
      width: calc(var(--width) * 1px);
      transform: translate(5000%, -50%);
    }
  }
}