.btn {
    padding: 1em 3em;
    margin-bottom: 2rem;
    border: none;
    border-radius: 1.5em;
    background-color: var(--clr-main);
    font-family: inherit;
    color: var(--clr-light);
    transition: filter .15s ease-in-out;
    cursor: pointer;
  }
  
  .btn:hover {
   filter: brightness(1.1); 
  }
  
  .modal {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transform: scale(1.1);
    transition: visibility 0s linear 0.25s, opacity 0.25s 0s, transform 0.25s;
  }
  .modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: white;
    padding: 2rem 2.5rem;
    width: 30em;
    border-radius: 0.5rem;
  }
  .close-button {
    float: right;
    width: 1.5rem;
    font-size: 1.2em;
    line-height: 1;
    padding: 0 .2em .15em;
    text-align: center;
    cursor: pointer;
    border-radius: 0.25rem;
    background-color: var(--clr-neutral);
    color: var(--clr-dark);
    transition: color 0.12s ease-in-out;
  }
  .close-button:hover {
    color: var(--clr-main);
  }
  .show-modal {
    opacity: 1;
    visibility: visible;
    transform: scale(1.0);
    transition: visibility 0s linear 0s, opacity 0.25s 0s, transform 0.25s;
  }