Generador CSS para subrayado de enlaces

.underline-link {
  position: relative;
  color: #0f172a;
  text-decoration: none;
  font-weight: 700;
}

.underline-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 2px;
  background: #38bdf8;
  transform-origin: left;
  transform: scaleX(0.15);
  transition: transform 0.3s ease;
}

.underline-link:hover::after {
  transform: scaleX(1);
}