:root {
  --primary-color: rgb(170, 157, 246);
  --secondary-color: rgb(163, 149, 252);
  --background-color: rgb(195, 193, 240);
}

* {
  margin: 0;
  padding: 0;
}

html,
body {
  width: 100%;
  height: 100%;
  background-color: var(--background-color);
}

canvas {
  display: none;
  width: 100%;
  height: 100%;
}

#loader {
  display: block;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 5rem;
  aspect-ratio: 2;
  --loader-circle: no-repeat
    radial-gradient(circle closest-side, var(--primary-color) 90%, #0000);
  background:
    var(--loader-circle) 0% 50%,
    var(--loader-circle) 50% 50%,
    var(--loader-circle) 100% 50%;
  background-size: calc(100% / 3) 50%;
  transition: display 0.2s ease;
  animation: loader-animation 1s infinite linear;
}
@keyframes loader-animation {
  20% {
    background-position:
      0% 0%,
      50% 50%,
      100% 50%;
  }
  40% {
    background-position:
      0% 100%,
      50% 0%,
      100% 50%;
  }
  60% {
    background-position:
      0% 50%,
      50% 100%,
      100% 0%;
  }
  80% {
    background-position:
      0% 50%,
      50% 50%,
      100% 100%;
  }
}

#github-link {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 6rem;
  height: 6rem;
  color: var(--primary-color);
  transition: color 0.2s ease;
  cursor: pointer;
}
#github-link:hover {
  color: var(--secondary-color);
}