/* ── Lightbox ─────────────────────────────────────────────── */
#img-overlay{position:fixed;inset:0;background:rgba(0,0,0,.85);z-index:9999;display:none;align-items:center;justify-content:center;flex-direction:column;touch-action:none;user-select:none}
#img-overlay.show{display:flex}
#img-overlay img{max-width:94%;max-height:82vh;border-radius:8px;box-shadow:0 4px 30px rgba(0,0,0,.6);object-fit:contain;transform-origin:0 0;pointer-events:none}
#img-overlay .close-hint{position:absolute;bottom:max(env(safe-area-inset-bottom),16px);color:rgba(255,255,255,.5);font-size:13px;pointer-events:none}