simple impact

#CSS#

body{
  background-color: #111;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  font-family: sans-serif;
}

.glow-button {
  position: relative;
  padding: 10px 32px;
  background-color: #222;
  color: #fff;
  font-size: 16px;
  border: 1px solid #444;
  border-radius: 10px;
  cursor: pointer;
  overflow: hidden;
  z-index: 0;
}

.glow-button::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 100%;
  transform: translate(-50%, -50%) scale(0);
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(0, 240, 255, 0.4) 0%, transparent 80%);
  opacity: 0;
  transition: transform 0.4s ease, opacity 0.4s ease;
  pointer-events: none;
  z-index: 1;
  border-radius: 50%;
}

.glow-button.glow-active::after {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
}