.popup-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.55);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.popup-overlay.show {
    display: flex;
}

.popup {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    width: min(100%, 600px);
    position: relative;
}

.popup-close {
    position: absolute;
    right: 12px;
    top: 8px;
    color: #686868;
    border: none;
    background: none;
    font-size: 1.5rem;
    cursor: pointer;
}