/* ============================================
   LIGHTBOX NAVIGATION
   ============================================ */
.lightbox-prev,
.lightbox-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: #fff;
    font-size: 2.5rem;
    cursor: pointer;
    opacity: 0.7;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    transition: all 0.2s;
    user-select: none;
    z-index: 2001;
}

.lightbox-prev { left: var(--space-xl); }
.lightbox-next { right: var(--space-xl); }

.lightbox-prev:hover,
.lightbox-next:hover {
    opacity: 1;
    background: rgba(255,255,255,0.2);
}

@media (max-width: 640px) {
    .lightbox-prev,
    .lightbox-next {
        width: 44px;
        height: 44px;
        font-size: 1.5rem;
    }
    
    .lightbox-prev { left: var(--space-sm); }
    .lightbox-next { right: var(--space-sm); }
}