body {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background-color: #1a1a1a;
  margin: 0;
  font-family: "Arial", sans-serif;
}
.cool-btn {
  position: relative;
  padding: 15px 40px;
  font-size: 20px;
  color: #fff;
  background: linear-gradient(45deg, #ff6ec4, #7873f5);
  border: none;
  border-radius: 50px;
  cursor: pointer;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
  transition: transform 0.6s ease, box-shadow 0.6s ease, background 0.6s ease;
  overflow: hidden;
}
.cool-btn::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.2) 20%,
    transparent 40%
  );
  transition: transform 1s ease;
  pointer-events: none;
  transform: scale(0);
}
.cool-btn:hover {
  transform: translateY(-15px);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
  background: linear-gradient(45deg, #7873f5, #ff6ec4);
}
.cool-btn:hover::after {
  transform: scale(1.5);
  animation: pulse 1.5s infinite;
}
@keyframes pulse {
  0% {
    transform: scale(1.5);
    opacity: 0.5;
  }
  50% {
    transform: scale(1.7);
    opacity: 0.7;
  }
  100% {
    transform: scale(1.5);
    opacity: 0.5;
  }
}
.cool-btn:active {
  transform: translateY(0);
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
}
