.popup {
    width: 100%;
    height: 100%;
    padding: 0;
    position: fixed; 
    z-index: 1000;
    left: 0;
    top: 0;
    justify-content: center;
    align-items: center;
    opacity: 0; 
    background-color: rgba(0, 0, 0, 0.5); 
    transition: opacity 0.3s ease-in-out; 
}

.popup.show {
    display: flex; 
    opacity: 1; 
}

.popup__content {
    position: relative;
    max-width: 700px;
}

.popup__content img {
    width: 290px;
}

.popup__close {
    position: absolute;
    top: -10px;
    right: -10px;
    background: #ccc;
    color: #000;
    border: none;
    font-size: 18px;
    cursor: pointer;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    font-size: 23px;
}

@media screen and (min-width: 360px) {

    .popup__content img {
        width: 320px;
    }

}

@media screen and (min-width: 500px) {

    .popup__content img {
        width: 460px;
    }

}

@media screen and (min-width: 768px) {

    .popup__content img {
        width: 600px;
    }

}

@media screen and (min-width: 768px) {

    .popup__content img {
        width: 700px;
    }

}