.mk-lightbox {
    position: fixed;
    inset: 0;
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.mk-lightbox.active {
    display: flex;
}

.mk-lightbox img {
    max-width: 90%;
    max-height: 90%;
    box-shadow: 0 20px 60px rgba(0,0,0,0.25);
    touch-action: pan-y;
}

.mk-close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 34px;
    cursor: pointer;
}

.mk-arrow {
    position: absolute;
    top: 50%;
    font-size: 42px;
    cursor: pointer;
    user-select: none;
}

.mk-prev { left: 20px; }
.mk-next { right: 20px; }

@media (max-width: 768px) {
    .mk-arrow {
        display: none;
    }
}