fix: stick mobile footer nav to bottom

src/pages/Home/index.tsx

@@ -51,6 +51,7 @@ export function Home() {
   const [latestPosts, setLatestPosts] = useState<Post[]>([]);
   const [popular, setPopular] = useState<PostBackedResource[]>([]);
   const [popularPosts, setPopularPosts] = useState<Post[]>([]);
+  const [categoryUnavailableOpen, setCategoryUnavailableOpen] = useState(false);
   const [err, setErr] = useState<string | null>(null);
   const recRowRef = useRef<HTMLDivElement>(null);
   const categoryRowRef = useRef<HTMLDivElement>(null);
@@ -66,9 +67,9 @@ export function Home() {
     Promise.all([
       getJSON<Category[]>(`/api/categories${catQ}`),
       getJSON<{ items: Post[] }>(`/api/posts/recommended${postQ}&limit=12`),
-      getJSON<{ items: Post[] }>(`/api/posts/latest${postQ}&limit=8`),
+      getJSON<{ items: Post[] }>(`/api/posts/latest${postQ}&limit=5`),
       getJSON<{ items: Post[] }>(
-        `/api/posts${postQ}&sort=popular&limit=8`,
+        `/api/posts${postQ}&sort=popular&limit=5`,
       ).catch((): { items: Post[] } => ({ items: [] })),
     ])
       .then(([c, r, l, p]) => {
@@ -206,7 +207,7 @@ export function Home() {
         <div className="px-4 md:px-0">
           <SectionHeader
             title={t("categorySection")}
-            viewAllTo="/browse"
+            viewAllTo="/categories"
             viewAllLabel={t("viewAll")}
           />
         </div>
@@ -224,9 +225,11 @@ export function Home() {
                 className="grid w-full shrink-0 snap-start grid-cols-3 gap-2 px-4"
               >
                 {page.map((c) => (
-                  <div
+                  <button
                     key={c.id}
-                    className="flex h-[88px] min-w-0 cursor-default flex-col items-center justify-center gap-2 rounded-xl border border-[#27292E] bg-[#1D1E23] px-4 py-3 text-center"
+                    type="button"
+                    onClick={() => setCategoryUnavailableOpen(true)}
+                    className="flex h-[88px] min-w-0 flex-col items-center justify-center gap-2 rounded-xl border border-[#27292E] bg-[#1D1E23] px-4 py-3 text-center outline-none transition hover:border-ark-gold/55 hover:bg-[#252630] focus-visible:ring-2 focus-visible:ring-ark-gold/80 focus-visible:ring-offset-2 focus-visible:ring-offset-ark-bg"
                   >
                     <CategoryIcon
                       iconKey={c.iconKey}
@@ -236,7 +239,7 @@ export function Home() {
                     <div className="w-full truncate text-[13px] font-medium leading-[19.5px] text-white">
                       {cleanCategoryDisplayName(c.name)}
                     </div>
-                  </div>
+                  </button>
                 ))}
               </div>
             ))}
@@ -275,9 +278,11 @@ export function Home() {
 
         <div className="mt-7 hidden grid-cols-3 gap-3 min-[440px]:gap-3.5 md:grid md:grid-cols-5 md:gap-3 lg:grid-cols-6 xl:grid-cols-7 xl:gap-4">
           {figmaOrderedCategories.map((c) => (
-            <div
+            <button
               key={c.id}
-              className="flex h-[88px] min-w-0 cursor-default flex-col items-center justify-center gap-2 rounded-xl border border-[#27292E] bg-[#1D1E23] px-4 py-3 text-center"
+              type="button"
+              onClick={() => setCategoryUnavailableOpen(true)}
+              className="flex h-[88px] min-w-0 flex-col items-center justify-center gap-2 rounded-xl border border-[#27292E] bg-[#1D1E23] px-4 py-3 text-center outline-none transition hover:border-ark-gold/55 hover:bg-[#252630] focus-visible:ring-2 focus-visible:ring-ark-gold/80 focus-visible:ring-offset-2 focus-visible:ring-offset-ark-bg"
             >
               <CategoryIcon
                 iconKey={c.iconKey}
@@ -287,7 +292,7 @@ export function Home() {
               <div className="w-full text-center text-[13px] font-medium leading-[19.5px] text-white line-clamp-2">
                 {cleanCategoryDisplayName(c.name)}
               </div>
-            </div>
+            </button>
           ))}
         </div>
       </section>
@@ -296,7 +301,7 @@ export function Home() {
         <div className="px-4 md:px-0">
           <SectionHeader
             title={t("officialSection")}
-            viewAllTo="/browse?sort=recommended"
+            viewAllTo="/official-recommendations"
             viewAllLabel={t("viewAll")}
           />
         </div>
@@ -366,7 +371,7 @@ export function Home() {
           />
         </div>
         <div className="flex flex-col gap-3 md:hidden">
-          {latestPosts.slice(0, 4).map((post) => (
+          {latestPosts.slice(0, 5).map((post) => (
             <MessageBubble key={post.id} post={post} />
           ))}
         </div>
@@ -392,7 +397,7 @@ export function Home() {
           />
         </div>
         <div className="flex flex-col gap-3 md:hidden">
-          {popularPosts.slice(0, 4).map((post) => (
+          {popularPosts.slice(0, 5).map((post) => (
             <MessageBubble key={post.id} post={post} />
           ))}
         </div>
@@ -408,6 +413,38 @@ export function Home() {
           ))}
         </div>
       </section>
+
+      {categoryUnavailableOpen ? (
+        <div
+          className="fixed inset-0 z-[100] flex items-center justify-center bg-black/70 px-6 backdrop-blur-sm"
+          role="dialog"
+          aria-modal="true"
+          aria-labelledby="category-unavailable-title"
+          onClick={() => setCategoryUnavailableOpen(false)}
+        >
+          <div
+            className="w-full max-w-[320px] rounded-2xl border border-[#27292E] bg-[#1D1E23] p-5 text-center shadow-2xl"
+            onClick={(event) => event.stopPropagation()}
+          >
+            <div
+              id="category-unavailable-title"
+              className="text-xl font-bold text-white"
+            >
+              {t("featureUnavailable")}
+            </div>
+            <p className="mt-2 text-sm leading-6 text-[#A8A9AE]">
+              {t("featureUnavailableDesc")}
+            </p>
+            <button
+              type="button"
+              onClick={() => setCategoryUnavailableOpen(false)}
+              className="mt-5 h-10 w-full rounded-full bg-ark-gold text-sm font-semibold text-black transition hover:bg-ark-gold2 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ark-gold/80 focus-visible:ring-offset-2 focus-visible:ring-offset-[#1D1E23]"
+            >
+              {t("confirm")}
+            </button>
+          </div>
+        </div>
+      ) : null}
     </div>
   );
 }