.button {
  position: relative;
  padding: 14px 42px;
  font-size: 18px;
  font-weight: bold;
  color: white;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  overflow: hidden;
  background: transparent;
  display: inline-block;
  z-index: 1;
  transition: transform 0.2s ease;
}

.button span {
  position: relative;
  z-index: 15;
}

.button:active {
  transform: scale(0.96);
}

.button::before {
  content: "";
  background: rgb(0 0 0);
  border-radius: inherit;
  height: calc(100% - 4px);
  width: calc(100% - 4px);
  position: absolute;
  top: 2px;
  left: 2px;
  z-index: 12;
  opacity: 0;
  transform: scale(0.95);
  transition: all 0.5s ease;
}

.button:hover::before {
  opacity: 1;
  transform: scale(1);
}

.bubble-layer {
  position: absolute;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  filter: blur(10px);
  z-index: 0;
}

.bubble-1 {
  background: #ff007f;
  top: -20%;
  left: -10%;
  animation: moveUpRight 6s ease-in-out infinite;
}
.bubble-2 {
  background: #ff6a00;
  top: 0%;
  left: 10%;
  animation: moveDownLeft 5s ease-in-out infinite;
  animation-delay: 1s;
}
.bubble-3 {
  background: #ffcc00;
  top: 20%;
  left: 50%;
  animation: moveRight 4s ease-in-out infinite;
  animation-delay: 2s;
}
.bubble-4 {
  background: #00fff0;
  top: -20%;
  left: 70%;
  animation: moveUpLeft 7s ease-in-out infinite;
  animation-delay: 3s;
}
.bubble-5 {
  background: #9d00ff;
  top: 30%;
  left: -10%;
  animation: moveDownRight 3s ease-in-out infinite;
  animation-delay: 4s;
}
.bubble-6 {
  background: #ff007f;
  top: -10%;
  left: 30%;
  animation: moveLeft 8s ease-in-out infinite;
  animation-delay: 0.5s;
}
.bubble-7 {
  background: #ff6a00;
  top: 40%;
  left: 60%;
  animation: moveUp 6s ease-in-out infinite;
  animation-delay: 1.5s;
}

@keyframes moveUpRight {
  0% {
    transform: translate(0, 0);
  }
  25% {
    transform: translate(100%, -100%);
  }
  50% {
    transform: translate(-50%, 50%);
  }
  75% {
    transform: translate(50%, -50%);
  }
  100% {
    transform: translate(0, 0);
  }
}
@keyframes moveDownLeft {
  0% {
    transform: translate(0, 0);
  }
  25% {
    transform: translate(-100%, 100%);
  }
  50% {
    transform: translate(50%, -50%);
  }
  75% {
    transform: translate(-50%, 50%);
  }
  100% {
    transform: translate(0, 0);
  }
}
@keyframes moveRight {
  0% {
    transform: translate(0, 0);
  }
  25% {
    transform: translate(100%, 0);
  }
  50% {
    transform: translate(-100%, 50%);
  }
  75% {
    transform: translate(50%, -50%);
  }
  100% {
    transform: translate(0, 0);
  }
}
@keyframes moveUpLeft {
  0% {
    transform: translate(0, 0);
  }
  25% {
    transform: translate(-100%, -100%);
  }
  50% {
    transform: translate(50%, 50%);
  }
  75% {
    transform: translate(-50%, -50%);
  }
  100% {
    transform: translate(0, 0);
  }
}
@keyframes moveDownRight {
  0% {
    transform: translate(0, 0);
  }
  25% {
    transform: translate(100%, 100%);
  }
  50% {
    transform: translate(-50%, -50%);
  }
  75% {
    transform: translate(50%, 50%);
  }
  100% {
    transform: translate(0, 0);
  }
}
@keyframes moveLeft {
  0% {
    transform: translate(0, 0);
  }
  25% {
    transform: translate(-100%, 0);
  }
  50% {
    transform: translate(100%, -50%);
  }
  75% {
    transform: translate(-50%, 50%);
  }
  100% {
    transform: translate(0, 0);
  }
}
@keyframes moveUp {
  0% {
    transform: translate(0, 0);
  }
  25% {
    transform: translate(0, -100%);
  }
  50% {
    transform: translate(50%, 50%);
  }
  75% {
    transform: translate(-50%, -50%);
  }
  100% {
    transform: translate(0, 0);
  }
}