[WV2] Add progressive enhancement for outfit item list toggles

Rather than just buttons, upgrade to radio buttons when we have JS.

app/assets/javascripts/wardrobe/zone-item-group.js

@@ -0,0 +1,68 @@
+/**
+ * ZoneItemGroup web component
+ *
+ * Progressive enhancement for zone-grouped item cards in the outfit view.
+ * Replaces baseline Show/Hide buttons with radio-button behavior:
+ * - Clicking a closeted item's label selects its radio and submits the Show form
+ * - Clicking a worn item's label submits the Hide form (un-wears it)
+ * - Arrow keys navigate between items via native radio behavior, triggering
+ *   a `change` event that submits the newly-selected item's Show form
+ */
+class ZoneItemGroup extends HTMLElement {
+	connectedCallback() {
+		this.addEventListener("click", this.#handleClick);
+		this.addEventListener("keydown", this.#handleKeydown);
+		this.addEventListener("change", this.#handleChange);
+	}
+
+	#handleClick = (e) => {
+		// Only handle clicks on labels (the item card click target)
+		const label = e.target.closest(".item-card-label");
+		if (!label) return;
+
+		const radio = label.querySelector("input[type=radio]");
+		if (!radio) return;
+
+		const card = label.closest(".item-card");
+		if (!card) return;
+
+		// If this item is worn (radio was already checked), un-wear it
+		if (card.dataset.isWorn != null) {
+			// Prevent the default label behavior (which would keep radio checked)
+			e.preventDefault();
+			const hideButton = card.querySelector(".item-hide-button");
+			if (hideButton) hideButton.closest("form").requestSubmit();
+		}
+		// If closeted, let the default label click proceed—it checks the radio,
+		// which fires the `change` event handled below
+	};
+
+	#handleKeydown = (e) => {
+		// Spacebar on an already-checked radio: un-wear the item
+		if (e.key !== " ") return;
+
+		const radio = e.target;
+		if (radio.type !== "radio" || !radio.checked) return;
+
+		const card = radio.closest(".item-card");
+		if (!card || card.dataset.isWorn == null) return;
+
+		e.preventDefault();
+		const hideButton = card.querySelector(".item-hide-button");
+		if (hideButton) hideButton.closest("form").requestSubmit();
+	};
+
+	#handleChange = (e) => {
+		const radio = e.target;
+		if (radio.type !== "radio" || !radio.checked) return;
+
+		const card = radio.closest(".item-card");
+		if (!card) return;
+
+		// Submit the Show form to wear this item
+		const showButton = card.querySelector(".item-show-button");
+		if (showButton) showButton.closest("form").requestSubmit();
+	};
+}
+
+customElements.define("zone-item-group", ZoneItemGroup);

app/assets/stylesheets/wardrobe/show.css

@@ -228,6 +228,42 @@ select,
   opacity: 0.75;
 }
 
+/* Visually hidden inputs (radio/checkbox) - accessible but not visible */
+.visually-hidden {
+  position: absolute;
+  width: 1px;
+  height: 1px;
+  padding: 0;
+  margin: -1px;
+  overflow: hidden;
+  clip: rect(0, 0, 0, 0);
+  white-space: nowrap;
+  border: 0;
+}
+
+/* Item card label - click target wrapping thumbnail + info */
+.item-card-label {
+  display: flex;
+  align-items: center;
+  gap: 0.75rem;
+  cursor: pointer;
+  flex: 1;
+  min-width: 0;
+}
+
+/* When zone-item-group is defined (JS loaded), hide Show/Hide buttons
+   and make the label the primary interaction. Keep Remove visible. */
+zone-item-group:defined .item-show-button,
+zone-item-group:defined .item-hide-button {
+  display: none;
+}
+
+/* Focus ring on item card when radio is focused (keyboard navigation) */
+zone-item-group:defined .item-card:has(input[type="radio"]:focus-visible) {
+  outline: 2px solid var(--color-primary);
+  outline-offset: -2px;
+}
+
 /* Pagination links - treated as buttons for consistency */
 .pagination {
   a,

app/views/wardrobe/items/_item_card.html.haml

@@ -1,13 +1,12 @@
 - is_worn = @outfit.worn_items.include?(item)
 - is_closeted = @outfit.closeted_items.include?(item)
 %li.item-card{data: {is_worn: is_worn || nil, is_closeted: is_closeted || nil}}
-  .item-thumbnail
-    = image_tag item.thumbnail_url, alt: item.name, loading: "lazy"
-  .item-info
-    .item-name= item.name
-    .item-badges
-      = render "items/badges/kind", item: item
-      = render "items/badges/first_seen", item: item
+  - if defined?(zone_id) && zone_id
+    %label.item-card-label
+      %input.visually-hidden{type: "radio", name: "zone_#{zone_id}", checked: is_worn || nil, "aria-label": item.name}
+      = render "wardrobe/items/item_card_content", item: item
+  - else
+    = render "wardrobe/items/item_card_content", item: item
   - if is_worn
     = button_to @wardrobe_path, method: :get, class: "item-hide-button", title: "Hide #{item.name}", "aria-label": "Hide #{item.name}" do
       👁️‍🗨️

app/views/wardrobe/items/_item_card_content.html.haml

@@ -0,0 +1,7 @@
+.item-thumbnail
+  = image_tag item.thumbnail_url, alt: "", loading: "lazy"
+.item-info
+  .item-name= item.name
+  .item-badges
+    = render "items/badges/kind", item: item
+    = render "items/badges/first_seen", item: item

app/views/wardrobe/show.html.haml

@@ -17,6 +17,7 @@
     = javascript_include_tag "pose-picker", async: true
     = javascript_include_tag "tab-panel", async: true
     = javascript_include_tag "outfit-rename-field", async: true
+    = javascript_include_tag "wardrobe/zone-item-group", async: true
     = javascript_include_tag "wardrobe/show", async: true
     = csrf_meta_tags
     %meta{name: 'outfit-viewer-morph-mode', value: 'full-page'}
@@ -74,6 +75,7 @@
               - outfit_items_by_zone(@outfit).each do |zone_group|
                 .zone-group
                   %h3.zone-label= zone_group[:zone_label]
+                  %zone-item-group
                     %ul.items-list
                       - zone_group[:items].each do |item|
-                      = render "items/item_card", item: item
+                        = render "items/item_card", item: item, zone_id: zone_group[:zone_id]

docs/wardrobe-v2-migration.md

@@ -69,13 +69,14 @@ The goal is a basic usable wardrobe. Species/color/pose selection, item search,
 - Visual distinction: worn items have green emphasis, closeted items have dashed border and reduced opacity.
 - Closeted items appear in zone groups alongside worn items.
 - `closet[]` URL params, saving/loading, and search pagination all work.
-- Progressive enhancement (pending):
-  - In the outfit view, items in the same zone group (mutually-incompatible) are a radio group. Whichever radio button
-    is checked is the worn item. The others are merely closeted.
-  - In the search view, each item has a worn checkbox (analogous to the worn radio button).
-  - In both views, when the item is closeted (always the case in the outfit view), there is a "Remove" button.
-  - The radio button and checkbox are visually hidden, and are reflected in styles that emphasize the selected item,
-    e.g., somewhat darker border/background, bold, etc. (See Wardrobe 2020.)
+- Progressive enhancement (outfit view done, search view pending):
+  - In the outfit view, items in each zone group have a visually-hidden radio input inside a `<label>`. The
+    `<zone-item-group>` web component delegates clicks to the baseline Show/Hide forms: clicking a closeted item
+    submits its Show form (wears it), clicking a worn item submits its Hide form (un-wears it). Arrow keys navigate
+    between items via native radio behavior.
+  - In the search view, each item will have a worn checkbox (analogous to the worn radio button) — pending.
+  - In both views, when the item is closeted, there is a "Remove" button.
+  - The radio button and checkbox are visually hidden, and are reflected in the item card worn/closeted styles instead.
 
 ### Phase 2: Polish & Parity