.image-lightbox{position:fixed;top:0;left:0;right:0;bottom:0;z-index:10000;display:flex;align-items:center;justify-content:center;padding:20px}.lightbox-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.9);backdrop-filter:blur(4px)}.lightbox-content{position:relative;z-index:1;max-width:90vw;max-height:90vh;display:flex;flex-direction:column;align-items:center;gap:16px}.lightbox-close{position:absolute;top:-50px;right:0;width:40px;height:40px;background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.2);border-radius:50%;color:white;font-size:20px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all 0.2s ease;z-index:2}.lightbox-close:hover{background:rgba(255,255,255,0.2);transform:scale(1.1)}.lightbox-image{max-width:100%;max-height:80vh;object-fit:contain;border-radius:8px;box-shadow:0 8px 32px rgba(0,0,0,0.5);cursor:zoom-out}.lightbox-caption{color:white;font-size:14px;text-align:center;padding:8px 16px;background:rgba(0,0,0,0.5);border-radius:4px;max-width:100%}.post-message img,.thread-content img{cursor:pointer;transition:opacity 0.2s ease}.post-message img:hover,.thread-content img:hover{opacity:0.9}@media (max-width:768px){.lightbox-content{max-width:95vw;max-height:95vh}.lightbox-close{top:-40px;width:36px;height:36px;font-size:18px}.lightbox-image{max-height:70vh}}