@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@200;300;400;500;600;700;800;900&display=swap");
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
}
section {
  position: relative;
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  background: #222;
}
ul {
  position: relative;
  display: flex;
  flex-direction: column;
}
ul li {
  list-style: none;
}

ul li a {
  position: relative;
  display: block;
  text-decoration: none;
  text-align: center;
  text-transform: uppercase;
  font-size: 4em;
  color: #fff;
  font-weight: 700;
  transition: 0.5s;
  transition-delay: 0.5s;
}
ul li a:hover {
  color: rgba(255, 255, 255, 0.1);
  transition-delay: 0s;
}
ul li a:before {
  content: attr(data-text);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 1;
  text-align: center;
  font-size: 0.35em;
  color: #3bffe8;
  text-shadow: 0 0 10px #3bffe8, 0 0 30px #3bffe8, 0 0 80px #3bffe8;
  font-weight: 500;
  letter-spacing: 40px;
  opacity: 0;
  transition: 0.5s;
}

ul li:hover a:before {
  opacity: 1;
  transition-delay: 0.5s;
  letter-spacing: 6px;
}