.tbvh-lb-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.75);z-index:9998}
.tbvh-lb-box{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:9999;padding:12px;box-sizing:border-box}
.tbvh-lb-box img{width:100%;max-width:1000px;max-height:80vh;object-fit:contain;border-radius:8px}
.tbvh-lb-link{margin-top:12px;text-align:center}
.tbvh-lb-link a{color:#fff;background:#111;padding:8px 12px;border-radius:6px;text-decoration:none}

/* Grid responsiveness */
.tbvh-instagram-grid, .tbvh-manual-grid{display:grid;gap:8px;grid-auto-rows:1fr}
.tbvh-instagram-grid[data-cols="4"], .tbvh-manual-grid[data-cols="4"]{grid-template-columns:repeat(4,1fr)}
.tbvh-instagram-grid[data-cols="3"], .tbvh-manual-grid[data-cols="3"]{grid-template-columns:repeat(3,1fr)}
.tbvh-instagram-grid[data-cols="2"], .tbvh-manual-grid[data-cols="2"]{grid-template-columns:repeat(2,1fr)}
.tbvh-instagram-grid[data-cols="1"], .tbvh-manual-grid[data-cols="1"]{grid-template-columns:repeat(1,1fr)}

/* Responsive breakpoints */
@media (max-width: 1024px){
	.tbvh-instagram-grid[data-cols="4"], .tbvh-manual-grid[data-cols="4"]{grid-template-columns:repeat(3,1fr)}
}
@media (max-width: 768px){
	.tbvh-instagram-grid[data-cols], .tbvh-manual-grid[data-cols]{grid-template-columns:repeat(2,1fr)}
}
@media (max-width: 480px){
	.tbvh-instagram-grid[data-cols], .tbvh-manual-grid[data-cols]{grid-template-columns:repeat(1,1fr)}
}

/* Image sizing inside grid */
.tbvh-instagram-grid img, .tbvh-manual-grid img{width:100%;height:0;padding-bottom:66.66%;object-fit:cover;border-radius:8px;display:block}
.tbvh-instagram-grid a, .tbvh-manual-grid a{display:block;position:relative;overflow:hidden}

/* Improved accessibility */
.tbvh-lb-box:focus{outline:none}