body, html {
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #1d1d1d;
  width: 100%;
  height: 100%;
}

.fluid-container {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}

.wave {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 200vw;
  height: 200vw;
  background: linear-gradient(45deg, rgba(0, 255, 255, 0.6) 25%, rgba(0, 102, 204, 0.8) 75%);
  border-radius: 45%;
  animation: waveMovement 5s ease-in-out infinite;
  transform-origin: center;
  z-index: 1;
  opacity: 0.8;
  margin-top: 0;
  margin-left: -100%;
}

.wave::before {
  content: "";
  position: absolute;
  top: -100%;
  left: -100%;
  width: 600vw;
  height: 600vw;
  background: linear-gradient(90deg, rgba(0, 255, 255, 0.5) 25%, rgba(0, 102, 204, 0.7) 75%);
  border-radius: 45%;
  animation: waveRipple 5s ease-in-out infinite;
  z-index: -1;
}

/* Keyframe animation for fluid wave movement */
@keyframes waveMovement {
  0% {
    transform: rotate(45deg) translateY(0);
    opacity: 0.8;
  }
  50% {
    transform: rotate(225deg) translateX(30px) translateY(30px);
    opacity: 1;
  }
  100% {
    transform: rotate(405deg) translateY(0);
    opacity: 0.8;
  }
}

/* Ripple effect inside the wave */
@keyframes waveRipple {
  0% {
    transform: rotate(0deg);
    opacity: 0.5;
  }
  25% {
    transform: rotate(90deg);
    opacity: 0.8;
  }
  50% {
    transform: rotate(180deg);
    opacity: 0.5;
  }
  75% {
    transform: rotate(270deg);
    opacity: 0.8;
  }
  100% {
    transform: rotate(360deg);
    opacity: 0.5;
  }
}