diff --git a/web/js/pqueue.ui.gallery.js b/web/js/pqueue.ui.gallery.js
new file mode 100644
index 0000000..090f8f3
--- /dev/null
+++ b/web/js/pqueue.ui.gallery.js
@@ -0,0 +1,80 @@
+(function () {
+    "use strict";
+
+    const UI = (window.PQueue && window.PQueue.UI) || window.UI;
+
+    UI.ensureGallery = function ensureGallery() {
+        if (UI.galleryOverlay) return;
+        const overlay = UI.el("div", { class: "pqueue-gallery-overlay" });
+        const box = UI.el("div", { class: "pqueue-gallery" });
+        const closeBtn = UI.button({ icon: "ti ti-x", variant: "ghost", subtle: true, title: "Close" });
+        closeBtn.addEventListener("click", UI.closeGallery);
+        const img = UI.el("img", { class: "pqueue-gallery__img" });
+        const counter = UI.el("div", { class: "pqueue-gallery__counter" });
+        const prev = UI.button({ icon: "ti ti-chevron-left", variant: "ghost", subtle: true, title: "Previous" });
+        prev.addEventListener("click", () => UI.galleryShow(UI.galleryState.index - 1));
+        const next = UI.button({ icon: "ti ti-chevron-right", variant: "ghost", subtle: true, title: "Next" });
+        next.addEventListener("click", () => UI.galleryShow(UI.galleryState.index + 1));
+
+        box.appendChild(closeBtn);
+        box.appendChild(img);
+        box.appendChild(counter);
+        box.appendChild(prev);
+        box.appendChild(next);
+        overlay.appendChild(box);
+
+        overlay.addEventListener("click", (e) => {
+            if (e.target === overlay) UI.closeGallery();
+        });
+
+        document.body.appendChild(overlay);
+        UI.galleryOverlay = overlay;
+        UI.galleryImg = img;
+        UI.galleryCounter = counter;
+        UI.galleryState = { images: [], index: 0, pid: null };
+    };
+
+    UI.openGallery = function openGallery(images, startIndex = 0, pid = null) {
+        UI.ensureGallery();
+        UI.galleryState.images = images || [];
+        UI.galleryState.pid = pid;
+        UI.galleryState.index = Math.max(0, Math.min(startIndex, UI.galleryState.images.length - 1));
+        UI.galleryOverlay.style.display = "flex";
+        UI.galleryShow(UI.galleryState.index);
+        UI.bindGalleryKeys(true);
+    };
+
+    UI.closeGallery = function closeGallery() {
+        if (UI.galleryOverlay) UI.galleryOverlay.style.display = "none";
+        UI.bindGalleryKeys(false);
+    };
+
+    UI.galleryShow = function galleryShow(index) {
+        const images = UI.galleryState.images;
+        if (!images.length) return;
+        UI.galleryState.index = (index + images.length) % images.length;
+        const desc = images[UI.galleryState.index];
+        UI.galleryImg.src = UI.buildPreviewUrl(desc, UI.galleryState.pid).href;
+        UI.galleryCounter.textContent = `${UI.galleryState.index + 1} / ${images.length}`;
+    };
+
+    UI.bindGalleryKeys = function bindGalleryKeys(enabled) {
+        const handler = (e) => {
+            if (!UI.galleryOverlay || UI.galleryOverlay.style.display !== "flex") return;
+            if (e.key === "Escape") UI.closeGallery();
+            else if (e.key === "ArrowRight") UI.galleryShow(UI.galleryState.index + 1);
+            else if (e.key === "ArrowLeft") UI.galleryShow(UI.galleryState.index - 1);
+        };
+        if (enabled) {
+            UI.galleryKeyHandler = handler;
+            document.addEventListener("keydown", handler);
+        } else if (UI.galleryKeyHandler) {
+            document.removeEventListener("keydown", UI.galleryKeyHandler);
+            UI.galleryKeyHandler = null;
+        }
+    };
+})();
+
+
+
+