fix: device card header layout — URL badge overflow and hide button gap

Move URL badge from card-title to card-subtitle row to prevent
overlap with top-right action buttons. Widen card-header padding-right
to 60px for 2-button clearance. Reorder hide button to first position
in top-actions so power and trash stay visually adjacent.

server/src/wled_controller/static/css/cards.css

@@ -378,10 +378,39 @@ body.cs-drag-active .card-drag-handle {
     gap: 2px;
 }
 
-.card-top-actions .card-remove-btn {
+.card-top-actions .card-remove-btn,
+.card-top-actions .card-hide-btn {
     position: static;
 }
 
+.card-hide-btn {
+    background: none;
+    border: none;
+    cursor: pointer;
+    padding: 2px;
+    color: var(--text-secondary);
+    opacity: 0;
+    transition: opacity 0.15s, color 0.15s;
+}
+.card:hover .card-hide-btn,
+.template-card:hover .card-hide-btn {
+    opacity: 0.6;
+}
+.card-hide-btn:hover {
+    opacity: 1 !important;
+    color: var(--text-primary);
+}
+.card-hide-btn .icon {
+    width: 14px;
+    height: 14px;
+}
+
+/* Hidden card dimmed style */
+.cs-card-hidden {
+    opacity: 0.55;
+    border-style: dashed !important;
+}
+
 .card-actions .color-picker-wrapper,
 .template-card-actions .color-picker-wrapper {
     display: flex;
@@ -478,7 +507,7 @@ body.cs-drag-active .card-drag-handle {
     justify-content: space-between;
     align-items: center;
     margin-bottom: 10px;
-    padding-right: 30px;
+    padding-right: 60px;
 }
 
 .card-title {
@@ -1181,6 +1210,41 @@ ul.section-tip li {
     opacity: 1;
 }
 
+/* ── Hidden cards toggle ──────────────────────────────────── */
+
+.cs-hidden-toggle {
+    background: none;
+    border: 1px solid var(--border-color);
+    color: var(--text-secondary);
+    font-size: 0.7rem;
+    height: 24px;
+    display: flex;
+    align-items: center;
+    gap: 4px;
+    padding: 0 6px;
+    cursor: pointer;
+    border-radius: 4px;
+    transition: color 0.2s, background 0.2s, border-color 0.2s;
+    flex-shrink: 0;
+}
+.cs-hidden-toggle .icon {
+    width: 14px;
+    height: 14px;
+}
+.cs-hidden-toggle:hover {
+    border-color: var(--primary-color);
+    color: var(--text-primary);
+}
+.cs-hidden-toggle.active {
+    background: var(--primary-color);
+    border-color: var(--primary-color);
+    color: var(--primary-contrast, #fff);
+}
+.cs-hidden-badge {
+    font-size: 0.65rem;
+    font-weight: 600;
+}
+
 /* ── Bulk selection ────────────────────────────────────────── */
 
 /* Toggle button in section header */

server/src/wled_controller/static/js/core/card-sections.ts

@@ -23,7 +23,7 @@
 
 import { t } from './i18n.ts';
 import { showBulkToolbar, hideBulkToolbar, updateBulkToolbar } from './bulk-toolbar.ts';
-import { ICON_LIST_CHECKS } from './icons.ts';
+import { ICON_LIST_CHECKS, ICON_EYE, ICON_EYE_OFF } from './icons.ts';
 
 export interface BulkAction {
     key: string;
@@ -52,11 +52,44 @@ export interface CardSectionOpts {
 
 const STORAGE_KEY = 'sections_collapsed';
 const ORDER_PREFIX = 'card_order_';
+const HIDDEN_KEY = 'hidden_cards';
 const DRAG_THRESHOLD = 5;
 const SCROLL_EDGE = 60;
 const SCROLL_SPEED = 12;
 const _reducedMotion = window.matchMedia('(prefers-reduced-motion: reduce)');
 
+function _getHiddenMap(): Record<string, string[]> {
+    try { return JSON.parse(localStorage.getItem(HIDDEN_KEY) as string) || {}; }
+    catch { return {}; }
+}
+
+function _saveHiddenMap(map: Record<string, string[]>): void {
+    localStorage.setItem(HIDDEN_KEY, JSON.stringify(map));
+}
+
+/** Get hidden IDs for a section. */
+export function getHiddenIds(sectionKey: string): string[] {
+    return _getHiddenMap()[sectionKey] || [];
+}
+
+/** Hide a card in a section. */
+export function hideCard(sectionKey: string, id: string): void {
+    const map = _getHiddenMap();
+    const ids = map[sectionKey] || [];
+    if (!ids.includes(id)) {
+        map[sectionKey] = [...ids, id];
+        _saveHiddenMap(map);
+    }
+}
+
+/** Unhide a card in a section. */
+export function unhideCard(sectionKey: string, id: string): void {
+    const map = _getHiddenMap();
+    const ids = map[sectionKey] || [];
+    map[sectionKey] = ids.filter(x => x !== id);
+    _saveHiddenMap(map);
+}
+
 function _getCollapsedMap(): Record<string, boolean> {
     try { return JSON.parse(localStorage.getItem(STORAGE_KEY) as string) || {}; }
     catch { return {}; }
@@ -80,6 +113,15 @@ export function renderSkeletonCards(count = 3, gridClass = 'devices-grid') {
     return `<div class="${gridClass}">${html}</div>`;
 }
 
+/** Registry of all CardSection instances for global access. */
+const _sectionRegistry = new Map<string, CardSection>();
+
+/** Toggle hidden state of a card from any context (e.g. inline onclick). */
+export function toggleCardHidden(sectionKey: string, id: string): void {
+    const section = _sectionRegistry.get(sectionKey);
+    if (section) section.toggleHidden(id);
+}
+
 export class CardSection {
 
     sectionKey: string;
@@ -101,6 +143,7 @@ export class CardSection {
     _escHandler: ((e: KeyboardEvent) => void) | null;
     _pendingReconcile: CardItem[] | null;
     _animated: boolean;
+    _showHidden: boolean;
 
     constructor(sectionKey: string, { titleKey, gridClass, addCardOnclick, keyAttr, headerExtra, collapsible, emptyKey, bulkActions }: CardSectionOpts) {
         this.sectionKey = sectionKey;
@@ -123,6 +166,8 @@ export class CardSection {
         this._escHandler = null;
         this._pendingReconcile = null;
         this._animated = false;
+        this._showHidden = false;
+        _sectionRegistry.set(sectionKey, this);
     }
 
     /** True if this section's DOM element exists (i.e. not the first render). */
@@ -134,8 +179,18 @@ export class CardSection {
     render(items: CardItem[]) {
         this._lastItems = items;
         this._dragBound = false; // DOM will be recreated → need to re-init drag
-        const count = items.length;
-        const cardsHtml = items.map(i => i.html).join('');
+
+        const hiddenIds = new Set(getHiddenIds(this.sectionKey));
+        const visibleItems = this._showHidden ? items : items.filter(i => !hiddenIds.has(i.key));
+        const hiddenCount = items.length - visibleItems.length + (this._showHidden ? 0 : 0);
+        const totalHidden = items.filter(i => hiddenIds.has(i.key)).length;
+        const count = visibleItems.length;
+        const cardsHtml = visibleItems.map(i => {
+            if (hiddenIds.has(i.key)) {
+                return i.html.replace(/class="(card|template-card)/, 'class="$1 cs-card-hidden');
+            }
+            return i.html;
+        }).join('');
 
         const isCollapsed = this.collapsible && !!_getCollapsedMap()[this.sectionKey];
         const chevronStyle = isCollapsed ? '' : ' style="transform:rotate(90deg)"';
@@ -146,7 +201,9 @@ export class CardSection {
             ? `<div class="template-card add-template-card cs-add-card" data-cs-add="${this.sectionKey}" onclick="${this.addCardOnclick}"><div class="add-template-icon">+</div></div>`
             : '';
 
-        const emptyState = '';
+        const hiddenToggle = totalHidden > 0
+            ? `<button type="button" class="cs-hidden-toggle${this._showHidden ? ' active' : ''}" data-cs-hidden-toggle="${this.sectionKey}" title="${t('section.show_hidden')}">${this._showHidden ? ICON_EYE : ICON_EYE_OFF} <span class="cs-hidden-badge">${totalHidden}</span></button>`
+            : '';
 
         return `
         <div class="subtab-section${collapsedClass}" data-card-section="${this.sectionKey}">
@@ -155,6 +212,7 @@ export class CardSection {
                 <span class="cs-title" data-i18n="${this.titleKey}">${t(this.titleKey)}</span>
                 <span class="cs-count">${count}</span>
                 ${this.headerExtra ? `<span class="cs-header-extra">${this.headerExtra}</span>` : ''}
+                ${hiddenToggle}
                 ${this.bulkActions ? `<button type="button" class="cs-bulk-toggle" data-cs-bulk="${this.sectionKey}" title="${t('bulk.select')}">${ICON_LIST_CHECKS}</button>` : ''}
                 <div class="cs-filter-wrap">
                     <input type="text" class="cs-filter" data-cs-filter="${this.sectionKey}"
@@ -163,7 +221,7 @@ export class CardSection {
                 </div>
             </div>
             <div class="cs-content ${this.gridClass}" data-cs-content="${this.sectionKey}"${contentDisplay}>
-                ${emptyState}${cardsHtml}
+                ${cardsHtml}
                 ${addCard}
             </div>
         </div>`;
@@ -232,6 +290,20 @@ export class CardSection {
             updateResetVisibility();
         }
 
+        // Hidden cards toggle button
+        const hiddenToggleBtn = document.querySelector(`[data-cs-hidden-toggle="${this.sectionKey}"]`);
+        if (hiddenToggleBtn) {
+            hiddenToggleBtn.addEventListener('mousedown', (e) => e.stopPropagation());
+            hiddenToggleBtn.addEventListener('click', (e) => {
+                e.stopPropagation();
+                this._showHidden = !this._showHidden;
+                // Re-render by triggering reconcile with last items
+                if (this._lastItems) this.reconcile(this._lastItems);
+                // Update toggle button visual
+                this._updateHiddenToggle();
+            });
+        }
+
         // Bulk selection toggle button
         if (this.bulkActions) {
             const bulkBtn = document.querySelector(`[data-cs-bulk="${this.sectionKey}"]`);
@@ -282,8 +354,9 @@ export class CardSection {
         // Tag card elements with their source HTML for future reconciliation
         this._tagCards(content);
 
-        // Inject drag handles and initialize drag-and-drop
+        // Inject hide buttons and drag handles, initialize drag-and-drop
         if (this.keyAttr) {
+            this._injectHideButtons(content);
             this._injectDragHandles(content);
             this._initDrag(content);
         }
@@ -308,15 +381,30 @@ export class CardSection {
 
         this._lastItems = items;
 
+        // Filter hidden items
+        const hiddenIds = new Set(getHiddenIds(this.sectionKey));
+        const visibleItems = this._showHidden ? items : items.filter(i => !hiddenIds.has(i.key));
+
         // Update count badge (will be refined by _applyFilter if a filter is active)
         const countEl = document.querySelector(`[data-cs-toggle="${this.sectionKey}"] .cs-count`);
-        if (countEl && !this._filterValue) countEl.textContent = String(items.length);
+        if (countEl && !this._filterValue) countEl.textContent = String(visibleItems.length);
+
+        // Update hidden toggle button
+        this._updateHiddenToggle();
 
         // Remove any stale empty-state element from DOM
         const staleEmpty = content.querySelector(`[data-cs-empty="${this.sectionKey}"]`);
         if (staleEmpty) staleEmpty.remove();
 
-        const newMap = new Map(items.map(i => [i.key, i.html]));
+        // Mark hidden cards with CSS class in HTML
+        const processedItems = visibleItems.map(i => {
+            if (hiddenIds.has(i.key)) {
+                return { key: i.key, html: i.html.replace(/class="(card|template-card)/, 'class="$1 cs-card-hidden') };
+            }
+            return i;
+        });
+
+        const newMap = new Map(processedItems.map(i => [i.key, i.html]));
         const addCard = content.querySelector('.cs-add-card');
         const added = new Set<string>();
         const replaced = new Set<string>();
@@ -348,7 +436,7 @@ export class CardSection {
             const existingKeys = new Set([...content.querySelectorAll(`[${this.keyAttr}]`)].map(
                 el => el.getAttribute(this.keyAttr)
             ));
-            for (const { key, html } of items) {
+            for (const { key, html } of processedItems) {
                 if (!existingKeys.has(key)) {
                     const tmp = document.createElement('div');
                     tmp.innerHTML = html;
@@ -375,8 +463,9 @@ export class CardSection {
             }
         }
 
-        // Re-inject drag handles on new/replaced cards
+        // Re-inject hide buttons and drag handles on new/replaced cards
         if (this.keyAttr && (added.size > 0 || replaced.size > 0)) {
+            this._injectHideButtons(content);
             this._injectDragHandles(content);
         }
 
@@ -700,8 +789,79 @@ export class CardSection {
         if (countEl) countEl.textContent = `${visible}/${total}`;
     }
 
+    /** Update the hidden toggle button's visual state. */
+    _updateHiddenToggle() {
+        const btn = document.querySelector(`[data-cs-hidden-toggle="${this.sectionKey}"]`) as HTMLElement | null;
+        const totalHidden = this._lastItems ? this._lastItems.filter(i => getHiddenIds(this.sectionKey).includes(i.key)).length : 0;
+
+        if (totalHidden === 0 && btn) {
+            btn.remove();
+            return;
+        }
+
+        if (totalHidden > 0 && !btn) {
+            // Insert toggle button into header
+            const bulkBtn = document.querySelector(`[data-cs-bulk="${this.sectionKey}"]`);
+            const filterWrap = document.querySelector(`[data-cs-toggle="${this.sectionKey}"] .cs-filter-wrap`);
+            const insertBefore = bulkBtn || filterWrap;
+            if (insertBefore) {
+                const newBtn = document.createElement('button');
+                newBtn.type = 'button';
+                newBtn.className = `cs-hidden-toggle${this._showHidden ? ' active' : ''}`;
+                newBtn.dataset.csHiddenToggle = this.sectionKey;
+                newBtn.title = t('section.show_hidden');
+                newBtn.innerHTML = `${this._showHidden ? ICON_EYE : ICON_EYE_OFF} <span class="cs-hidden-badge">${totalHidden}</span>`;
+                newBtn.addEventListener('mousedown', (e) => e.stopPropagation());
+                newBtn.addEventListener('click', (e) => {
+                    e.stopPropagation();
+                    this._showHidden = !this._showHidden;
+                    if (this._lastItems) this.reconcile(this._lastItems);
+                    this._updateHiddenToggle();
+                });
+                insertBefore.parentNode!.insertBefore(newBtn, insertBefore);
+            }
+            return;
+        }
+
+        if (btn) {
+            btn.classList.toggle('active', this._showHidden);
+            btn.innerHTML = `${this._showHidden ? ICON_EYE : ICON_EYE_OFF} <span class="cs-hidden-badge">${totalHidden}</span>`;
+        }
+    }
+
+    /** Toggle hidden state for a card and re-render. */
+    toggleHidden(id: string) {
+        const hidden = getHiddenIds(this.sectionKey);
+        if (hidden.includes(id)) {
+            unhideCard(this.sectionKey, id);
+        } else {
+            hideCard(this.sectionKey, id);
+        }
+        if (this._lastItems) this.reconcile(this._lastItems);
+    }
+
     // ── drag-and-drop reordering ──
 
+    _injectHideButtons(content: HTMLElement) {
+        if (!this.keyAttr) return;
+        content.querySelectorAll(`[${this.keyAttr}]`).forEach(card => {
+            if (card.querySelector('.card-hide-btn')) return;
+            const topActions = card.querySelector('.card-top-actions');
+            if (!topActions) return;
+            const key = card.getAttribute(this.keyAttr)!;
+            const btn = document.createElement('button');
+            btn.className = 'card-hide-btn';
+            btn.title = 'Hide';
+            btn.innerHTML = ICON_EYE_OFF;
+            btn.addEventListener('click', (e) => {
+                e.stopPropagation();
+                this.toggleHidden(key);
+            });
+            // Insert as first child so order is [hide] [power] [trash]
+            topActions.insertBefore(btn, topActions.firstChild);
+        });
+    }
+
     _injectDragHandles(content: HTMLElement) {
         const cards = content.querySelectorAll(`[${this.keyAttr}]`);
         cards.forEach(card => {

server/src/wled_controller/static/js/features/devices.ts

@@ -158,12 +158,12 @@ export function createDeviceCard(device: Device & { state?: any }) {
                 <div class="card-title" title="${escapeHtml(device.name || device.id)}">
                     <span class="health-dot ${healthClass}" title="${healthTitle}" role="status" aria-label="${healthTitle}"></span>
                     <span class="card-title-text">${device.name || device.id}</span>
-                    ${device.url && device.url.startsWith('http') ? `<a class="device-url-badge" href="${device.url}" target="_blank" rel="noopener" title="${t('device.button.webui')}"><span class="device-url-text">${escapeHtml(device.url.replace(/^https?:\/\//, ''))}</span><span class="device-url-icon">${ICON_WEB}</span></a>` : (device.url && !device.url.startsWith('mock://') && !device.url.startsWith('ws://') && !device.url.startsWith('openrgb://') && !device.url.startsWith('http') ? `<span class="device-url-badge"><span class="device-url-text">${escapeHtml(device.url)}</span></span>` : '')}
                     ${healthLabel}
                 </div>
             </div>
             <div class="card-subtitle">
                 <span class="card-meta device-type-badge">${(device.device_type || 'wled').toUpperCase()}</span>
+                ${device.url && device.url.startsWith('http') ? `<a class="device-url-badge" href="${device.url}" target="_blank" rel="noopener" title="${t('device.button.webui')}"><span class="device-url-text">${escapeHtml(device.url.replace(/^https?:\/\//, ''))}</span><span class="device-url-icon">${ICON_WEB}</span></a>` : (device.url && !device.url.startsWith('mock://') && !device.url.startsWith('ws://') && !device.url.startsWith('openrgb://') && !device.url.startsWith('http') ? `<span class="device-url-badge"><span class="device-url-text">${escapeHtml(device.url)}</span></span>` : '')}
                 ${openrgbZones.length
                     ? openrgbZones.map((z: any) => `<span class="card-meta zone-badge" data-zone-name="${escapeHtml(z)}">${ICON_LED} ${escapeHtml(z)}</span>`).join('')
                     : (ledCount ? `<span class="card-meta" title="${t('device.led_count')}">${ICON_LED} ${ledCount}</span>` : '')}
@@ -200,7 +200,7 @@ export async function turnOffDevice(deviceId: any) {
     try {
         const setResp = await fetchWithAuth(`/devices/${deviceId}/power`, {
             method: 'PUT',
-            body: JSON.stringify({ on: false })
+            body: JSON.stringify({ power: false })
         });
         if (setResp.ok) {
             showToast(t('device.power.off_success'), 'success');