/* Header styling */
/*.header {
  position: relative;
  background-color: #4c9be8;
  height: 300px;
  overflow: hidden;
  text-align: center;
  color: white;
  font-size: 2rem;
  line-height: 300px;
}*/

/* Bubble styling */
.bubble {
  position: absolute;
  background-color: rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  animation: float 8s linear infinite;
  opacity: 0;
}

/* Keyframes for bubble movement */
@keyframes float {
  0% {
    transform: translateY(100%);
    opacity: 0.2;
  }
  50% {
    opacity: 0.7;
  }
  100% {
    transform: translateY(-100%);
    opacity: 0;
  }
}

/* Generate multiple bubbles with different sizes and animation delays */
.bubble:nth-child(1) {
  width: 40px;
  height: 40px;
  left: 10%;
  animation-delay: 0s;
}

.bubble:nth-child(2) {
  width: 60px;
  height: 60px;
  left: 30%;
  animation-delay: 2s;
}

.bubble:nth-child(3) {
  width: 80px;
  height: 80px;
  left: 50%;
  animation-delay: 4s;
}

.bubble:nth-child(4) {
  width: 50px;
  height: 50px;
  left: 70%;
  animation-delay: 1s;
}

.bubble:nth-child(5) {
  width: 30px;
  height: 30px;
  left: 90%;
  animation-delay: 3s;
}