.nav-link {
        position: relative;
        transition: color 0.3s ease;
        padding-bottom: 4px;
      }
      .nav-link::after {
        content: "";
        position: absolute;
        left: 0;
        bottom: 0;
        width: 0%;
        height: 2px;
        background-color: #3b82f6;
        transition: width 0.3s ease;
      }
      .nav-link:hover::after {
        width: 100%;
      }
      .nav-link:hover {
        color: #3b82f6;
      }