.popup {
    display: none;
    position: fixed;
    top: 1rem;
    background-color: white;
    width: 50%;
    left: 25%;
    box-shadow: 0 0 0.9375rem 0.3125rem rgba(0, 0, 0, 0.15);
    border: 0.0625rem solid black;
    z-index: 2;
    padding: 1rem;
    overflow-y: auto;
    max-height: 90vh;
}