/* Popup-баннер (lightbox) */
.nbc-mk-lightbox {
    position: fixed;
    inset: 0;
    z-index: 99999;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.75);
    opacity: 0;
    transition: opacity 0.5s ease;
    padding: 20px;
    box-sizing: border-box;
}

.nbc-mk-lightbox.is-visible {
    opacity: 1;
}

.nbc-mk-lb-wrap {
    position: relative;
    width: 60%;
    max-width: 960px;
}

.nbc-mk-lb-box {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    max-height: 80vh;
    box-sizing: border-box;
    overflow: hidden;
    border-radius: 20px;
}

.nbc-mk-lb-box img {
    position: absolute;
    inset: 0;
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.nbc-mk-lb-link {
    display: block;
    width: 100%;
    height: 100%;
}

.nbc-mk-lb-desk {
    display: block;
}

.nbc-mk-lb-mob {
    display: none;
}

.nbc-mk-lb-close {
    position: absolute;
    top: -34px;
    right: -34px;
    z-index: 2;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: #fff;
    font-size: 34px;
    line-height: 1;
    cursor: pointer;
    padding: 0;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.6);
    transition: opacity 0.2s ease;
}

.nbc-mk-lb-close:hover,
.nbc-mk-lb-close:focus {
    opacity: 0.75;
}

@media (max-width: 768px) {
    .nbc-mk-lightbox {
        padding: 12px;
    }

    .nbc-mk-lb-wrap {
        width: 95%;
    }

    .nbc-mk-lb-box {
        aspect-ratio: 1 / 1;
    }

    .nbc-mk-lb-desk {
        display: none;
    }

    .nbc-mk-lb-mob {
        display: block;
    }

    .nbc-mk-lb-close {
        width: 40px;
        height: 40px;
        top: -30px;
        right: -30px;
        font-size: 30px;
    }
}