body {
  margin: 0;
  padding: 0;
  
  overflow-x: hidden;
}

.bubble-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1; /* Keeps them behind your text/video */
  pointer-events: none;
}

.bubble {
  position: absolute;
  bottom: -150px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(5px); /* The "Crystal" effect */
  border-radius: 50%;
  box-shadow: inset 0 0 20px rgba(255, 255, 255, 0.3), 
              0 0 15px rgba(255, 255, 255, 0.1);
  animation: float 15s infinite linear;
}

/* Creating different sizes and positions for variety */
.bubble:nth-child(1) { width: 80px; height: 80px; left: 10%; animation-duration: 18s; }
.bubble:nth-child(2) { width: 120px; height: 120px; left: 30%; animation-duration: 12s; animation-delay: 2s; }
.bubble:nth-child(3) { width: 50px; height: 50px; left: 50%; animation-duration: 20s; animation-delay: 5s; }
.bubble:nth-child(4) { width: 100px; height: 100px; left: 75%; animation-duration: 15s; }
.bubble:nth-child(5) { width: 150px; height: 150px; left: 90%; animation-duration: 25s; animation-delay: 1s; }

@keyframes float {
  0% {
    transform: translateY(0) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-120vh) rotate(360deg);
    opacity: 0;
  }
}