@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;
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: #252839;
}

.year {
  position: relative;
  display: flex;
  gap: 30px;
}

.year span {
  position: relative;
  width: 120px;
  height: 120px;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.25);
}

.year span b {
  font-size: 6em;
  font-weight: 700;
  -webkit-text-stroke: 2px var(--clr);
  color: transparent;
  transition: 0.5s;
}

.year span:hover b {
  opacity: 0;
}

.year span::before {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 0;
  font-size: 6em;
  font-weight: 700;
  text-align: center;
  line-height: 120px;
  color: var(--clr);
  border-bottom: 6px solid var(--clr);
  overflow: hidden;
  transition: 0.5s ease-in-out;
}

.year span:hover::before {
  height: 100%;
  filter: drop-shadow(0 0 20px var(--clr));
}