html,
body {
  font-family: "Dongle", sans-serif;
  margin: 0;
  padding: 0;
}

.text-container {
  z-index: 100;
  width: 100vw;
  height: 100vh;
  display: flex;
  position: absolute;
  top: 0;
  left: 0;
  justify-content: center;
  align-items: center;
  font-size: 96px;
  color: white;
  opacity: 0.8;
  user-select: none;
  text-shadow: 1px 1px rgba(0, 0, 0, 0.1);
}

:root {
  --color-bg1: rgb(108, 0, 162);
  --color-bg2: rgb(0, 17, 82);
  --color1: 18, 113, 255;
  --color2: 221, 74, 255;
  --color3: 100, 220, 255;
  --color4: 200, 50, 50;
  --color5: 180, 180, 50;
  --color-interactive: 140, 100, 255;
  --circle-size: 80%;
  --blending: hard-light;
}

@keyframes moveInCircle {
  0% {
    transform: rotate(0deg);
  }
  50% {
    transform: rotate(180deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

@keyframes moveVertical {
  0% {
    transform: translateY(-50%);
  }
  50% {
    transform: translateY(50%);
  }
  100% {
    transform: translateY(-50%);
  }
}

@keyframes moveHorizontal {
  0% {
    transform: translateX(-50%) translateY(-10%);
  }
  50% {
    transform: translateX(50%) translateY(10%);
  }
  100% {
    transform: translateX(-50%) translateY(-10%);
  }
}

.gradient-bg {
  width: 100vw;
  height: 100vh;
  position: relative;
  overflow: hidden;
  background: linear-gradient(40deg, var(--color-bg1), var(--color-bg2));
  top: 0;
  left: 0;

  svg {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 0;
  }

  .gradients-container {
    filter: url(#goo) blur(40px);
    width: 100%;
    height: 100%;
  }

  .g1 {
    position: absolute;
    background: radial-gradient(
        circle at center,
        rgba(var(--color1), 0.8) 0,
        rgba(var(--color1), 0) 50%
      )
      no-repeat;
    mix-blend-mode: var(--blending);

    width: var(--circle-size);
    height: var(--circle-size);
    top: calc(50% - var(--circle-size) / 2);
    left: calc(50% - var(--circle-size) / 2);

    transform-origin: center center;
    animation: moveVertical 30s ease infinite;

    opacity: 1;
  }

  .g2 {
    position: absolute;
    background: radial-gradient(
        circle at center,
        rgba(var(--color2), 0.8) 0,
        rgba(var(--color2), 0) 50%
      )
      no-repeat;
    mix-blend-mode: var(--blending);

    width: var(--circle-size);
    height: var(--circle-size);
    top: calc(50% - var(--circle-size) / 2);
    left: calc(50% - var(--circle-size) / 2);

    transform-origin: calc(50% - 400px);
    animation: moveInCircle 20s reverse infinite;

    opacity: 1;
  }

  .g3 {
    position: absolute;
    background: radial-gradient(
        circle at center,
        rgba(var(--color3), 0.8) 0,
        rgba(var(--color3), 0) 50%
      )
      no-repeat;
    mix-blend-mode: var(--blending);

    width: var(--circle-size);
    height: var(--circle-size);
    top: calc(50% - var(--circle-size) / 2 + 200px);
    left: calc(50% - var(--circle-size) / 2 - 500px);

    transform-origin: calc(50% + 400px);
    animation: moveInCircle 40s linear infinite;

    opacity: 1;
  }

  .g4 {
    position: absolute;
    background: radial-gradient(
        circle at center,
        rgba(var(--color4), 0.8) 0,
        rgba(var(--color4), 0) 50%
      )
      no-repeat;
    mix-blend-mode: var(--blending);

    width: var(--circle-size);
    height: var(--circle-size);
    top: calc(50% - var(--circle-size) / 2);
    left: calc(50% - var(--circle-size) / 2);

    transform-origin: calc(50% - 200px);
    animation: moveHorizontal 40s ease infinite;

    opacity: 0.7;
  }

  .g5 {
    position: absolute;
    background: radial-gradient(
        circle at center,
        rgba(var(--color5), 0.8) 0,
        rgba(var(--color5), 0) 50%
      )
      no-repeat;
    mix-blend-mode: var(--blending);

    width: calc(var(--circle-size) * 2);
    height: calc(var(--circle-size) * 2);
    top: calc(50% - var(--circle-size));
    left: calc(50% - var(--circle-size));

    transform-origin: calc(50% - 800px) calc(50% + 200px);
    animation: moveInCircle 20s ease infinite;

    opacity: 1;
  }

  .interactive {
    position: absolute;
    background: radial-gradient(
        circle at center,
        rgba(var(--color-interactive), 0.8) 0,
        rgba(var(--color-interactive), 0) 50%
      )
      no-repeat;
    mix-blend-mode: var(--blending);

    width: 100%;
    height: 100%;
    top: -50%;
    left: -50%;

    opacity: 0.7;
  }
}