.lightbox-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.92);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 10100;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}

.lightbox-overlay.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: calc(100vw - 160px);
    max-height: calc(100vh - 80px);
}

.lightbox-img {
    max-width: 100%;
    max-height: calc(100vh - 120px);
    object-fit: contain;
    border-radius: 8px;
    display: block;
    transition: opacity 0.2s ease;
    cursor: zoom-in;
}

.lightbox-caption {
    margin-top: 14px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    text-align: center;
    max-width: 600px;
}

.lightbox-close {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease;
    z-index: 1;
}
.lightbox-close:hover { background: rgba(255, 255, 255, 0.2); }

.lightbox-prev,
.lightbox-next {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease;
}
.lightbox-prev { left: 20px; }
.lightbox-next { right: 20px; }
.lightbox-prev:hover,
.lightbox-next:hover { background: rgba(255, 255, 255, 0.2); }

@media (max-width: 640px) {
    .lightbox-content { max-width: calc(100vw - 32px); }
    .lightbox-prev { left: 8px; }
    .lightbox-next { right: 8px; }
}