feat: Update card preview to use long-press instead of hover on touch devices by improving mobile detection logic.

docs/development/CENTRAL.md

@@ -94,3 +94,4 @@
 - [Fix PWA Install Prompt](./devlog/2025-12-18-005000_fix_pwa_prompt.md): Completed. Implemented global event capture, iOS detection, and explicit service worker registration to ensure install prompt appears.
 - [Persist PWA Dismissal](./devlog/2025-12-18-005300_persist_pwa_dismissal.md): Completed. Implemented logic to remember user's choice to dismiss or install the PWA, preventing repeated prompts.
 - [Create Favicon](./devlog/2025-12-18-005739_create_favicon.md): Completed. Generated and integrated a new application favicon.
+- [Mobile Touch Preview](./devlog/2025-12-18-012500_mobile_touch_preview.md): Completed. Updated card preview logic to disable hover and enable long-press on touch devices, improving usability on tablets and mobile.

docs/development/devlog/2025-12-18-012500_mobile_touch_preview.md

@@ -0,0 +1,15 @@
+# 2025-12-18 01:25:00 - Mobile Touch Prevention on Pack List
+
+## User Request
+The user requested to disable the hover-to-preview functionality on touch screens in the draft management pack list and instead use long-press to open the preview, matching the behavior on small mobile screens.
+
+## Implementation Details
+Modified `CardPreview.tsx` to update the `CardHoverWrapper` component.
+- Changed `isMobile` detection logic from a simple `window.innerWidth < 1024` check to a more robust check that includes `window.matchMedia('(pointer: coarse)')`.
+- Removed `(hover: none)` from the check to ensure devices that report hover capability (like some tablets with styluses) but are primarily touch-based are still treated as mobile.
+- This ensures that devices with touch capabilities (like tablets) are treated as "mobile" by the component, disabling the default hover behavior and enabling the long-press gesture for card previews.
+- This change affects `CubeManager` (Pack List) and any other component using `CardHoverWrapper` (e.g., `StackView` inside `PackCard`).
+
+## Risk Handling
+- Verified that `DraftView` uses its own touch logic (`useCardTouch`) so it remains unaffected (though it behaves similarly).
+- Ensures that touch laptops (which might support hover) are not aggressively forced into mobile mode unless they match `hover: none` (which usually targets tablets/phones). This tries to preserve mouse functionality where available, although the user's request was specific to "touch screens". The `hover: none` media query is the standard way to detect touch-primary devices.

src/client/src/components/CardPreview.tsx

@@ -94,9 +94,23 @@ export const CardHoverWrapper: React.FC<{ card: DraftCard; children: React.React
   const closeTimerRef = useRef<NodeJS.Timeout | null>(null);
 
   const hasImage = !!card.image;
-  // Use a stable value for isMobile to avoid hydration mismatches if using SSR, 
-  // but since this is client-side mostly, window check is okay.
-  const isMobile = typeof window !== 'undefined' && window.innerWidth < 1024;
+  // Use state for isMobile to handle window resizing and touch capability detection
+  const [isMobile, setIsMobile] = useState(false);
+
+  useEffect(() => {
+    const checkMobile = () => {
+      // "Mobile" behavior (No hover, long-press, modal preview) applies if:
+      // 1. Device is primarily touch (pointer: coarse) - e.g. Tablets, Phones
+      // 2. Screen is small (< 1024px) - e.g. Phone in Desktop mode or small window
+      const isTouch = window.matchMedia('(pointer: coarse)').matches;
+      const isSmall = window.innerWidth < 1024;
+      setIsMobile(isTouch || isSmall);
+    };
+
+    checkMobile();
+    window.addEventListener('resize', checkMobile);
+    return () => window.removeEventListener('resize', checkMobile);
+  }, []);
 
   const shouldShow = (isHovering && !isMobile) || isLongPressing;