.overlay {
    z-index: 2;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background: #000000b3;
    transition: opacity 500ms;
    visibility: hidden;
    opacity: 0;
}

.overlay:target {
    visibility: visible;
    opacity: 1;
}

.popup {
    margin: 70px auto;
    padding: 20px;
    background: var(--white);
    border-radius: 5px;
    position: relative;
    transition: all 5s ease-in-out;
}

.popup h2 {
    margin-top: 0;
    color: var(--black);
}

.popup p,
.popup strong {
    color: var(--black);
}

.popup .close {
    position: absolute;
    top: 20px;
    right: 30px;
    transition: all 200ms;
    font-size: 50px;
    font-weight: bold;
    text-decoration: none;
    color: #333;
}

.popup .close:hover {
    color: var(--black);
}

.popup .content {
    max-height: calc(100vh - 210px);
    ;
    padding-right: 10px;
    overflow-y: auto;
}