diff --git a/src/components/LeftSidebar.tsx b/src/components/LeftSidebar.tsx
index 0e3f0e9d..b103b510 100644
--- a/src/components/LeftSidebar.tsx
+++ b/src/components/LeftSidebar.tsx
@@ -10,6 +10,7 @@ import { MewLogo } from '@/components/MewLogo';
 import { ProfileSearchDropdown } from '@/components/ProfileSearchDropdown';
 import LoginDialog from '@/components/auth/LoginDialog';
 import SignupDialog from '@/components/auth/SignupDialog';
+import { ReplyComposeModal } from '@/components/ReplyComposeModal';
 import { useCurrentUser } from '@/hooks/useCurrentUser';
 import { useLoggedInAccounts, type Account } from '@/hooks/useLoggedInAccounts';
 import { useLoginActions } from '@/hooks/useLoginActions';
@@ -62,6 +63,7 @@ export function LeftSidebar() {
   const [loginDialogOpen, setLoginDialogOpen] = useState(false);
   const [signupDialogOpen, setSignupDialogOpen] = useState(false);
   const [accountPopoverOpen, setAccountPopoverOpen] = useState(false);
+  const [composeOpen, setComposeOpen] = useState(false);
 
   /** Map route name → lucide icon (size-6 for sidebar). */
   const ROUTE_ICONS: Record<string, React.ReactNode> = {
@@ -158,14 +160,15 @@ export function LeftSidebar() {
 
         {/* Compose/Join button */}
         {user ? (
-          <Button
-            className="w-full mt-4 rounded-full h-12 text-base font-bold bg-primary hover:bg-primary/90 text-primary-foreground"
-            onClick={() => {
-              window.scrollTo({ top: 0, behavior: 'smooth' });
-            }}
-          >
-            <span>Compose</span>
-          </Button>
+          <>
+            <Button
+              className="w-full mt-4 rounded-full h-12 text-base font-bold bg-primary hover:bg-primary/90 text-primary-foreground"
+              onClick={() => setComposeOpen(true)}
+            >
+              <span>Compose</span>
+            </Button>
+            <ReplyComposeModal open={composeOpen} onOpenChange={setComposeOpen} />
+          </>
         ) : (
           <Button
             className="w-full mt-4 rounded-full h-12 text-base font-bold bg-primary hover:bg-primary/90 text-primary-foreground"
diff --git a/src/components/RightSidebar.tsx b/src/components/RightSidebar.tsx
index e7c2b86c..ca9557a7 100644
--- a/src/components/RightSidebar.tsx
+++ b/src/components/RightSidebar.tsx
@@ -65,14 +65,23 @@ export function TrendSparkline({ data }: { data: number[] }) {
   );
 }
 
+/** Track whether the sidebar has already loaded data at least once. */
+let hasLoadedOnce = false;
+
 export function RightSidebar() {
   const isXl = useIsXl();
 
-  // Delay sidebar data loading to prioritize feed performance
-  const [sidebarEnabled, setSidebarEnabled] = useState(false);
+  // Delay sidebar data loading only on the very first mount to prioritize
+  // initial feed performance. On subsequent mounts (page navigations) skip
+  // the delay since TanStack Query will serve cached data instantly.
+  const [sidebarEnabled, setSidebarEnabled] = useState(hasLoadedOnce);
   
   useEffect(() => {
-    const timer = setTimeout(() => setSidebarEnabled(true), 3000);
+    if (hasLoadedOnce) return;
+    const timer = setTimeout(() => {
+      hasLoadedOnce = true;
+      setSidebarEnabled(true);
+    }, 3000);
     return () => clearTimeout(timer);
   }, []);
 
diff --git a/src/pages/PostDetailPage.tsx b/src/pages/PostDetailPage.tsx
index 5e91e83c..80e22415 100644
--- a/src/pages/PostDetailPage.tsx
+++ b/src/pages/PostDetailPage.tsx
@@ -103,6 +103,28 @@ function parseImetaMap(tags: string[][]): Map<string, ImetaEntry> {
   return map;
 }
 
+/** Get the first value for a tag name. */
+function getTag(tags: string[][], name: string): string | undefined {
+  return tags.find(([n]) => n === name)?.[1];
+}
+
+/** Parse single imeta tag into structured object (for kind 34236 vines). */
+function parseImeta(tags: string[][]): { url?: string; thumbnail?: string } {
+  const imetaTag = tags.find(([name]) => name === 'imeta');
+  if (!imetaTag) return {};
+  const result: Record<string, string> = {};
+  for (let i = 1; i < imetaTag.length; i++) {
+    const part = imetaTag[i];
+    const spaceIdx = part.indexOf(' ');
+    if (spaceIdx === -1) continue;
+    const key = part.slice(0, spaceIdx);
+    const value = part.slice(spaceIdx + 1);
+    if (key === 'url') result.url = value;
+    else if (key === 'image') result.thumbnail = value;
+  }
+  return result;
+}
+
 /** Formats a timestamp into a full date string like "Feb 16, 2026, 2:53 PM". */
 function formatFullDate(timestamp: number): string {
   const date = new Date(timestamp * 1000);
@@ -543,6 +565,37 @@ function EventNotFound({
   );
 }
 
+/** Video + title + hashtags for a kind 34236 vine on the detail page. */
+function VineDetailContent({ event }: { event: NostrEvent }) {
+  const imeta = useMemo(() => parseImeta(event.tags), [event.tags]);
+  const vineTitle = getTag(event.tags, 'title');
+  const hashtags = event.tags.filter(([n]) => n === 't').map(([, v]) => v);
+
+  return (
+    <div className="mt-3">
+      {vineTitle && (
+        <p className="text-[15px] leading-relaxed break-words mb-2">{vineTitle}</p>
+      )}
+      {imeta.url && (
+        <VideoPlayer src={imeta.url} poster={imeta.thumbnail} />
+      )}
+      {hashtags.length > 0 && (
+        <div className="flex flex-wrap gap-1.5 mt-2">
+          {hashtags.slice(0, 8).map((tag) => (
+            <Link
+              key={tag}
+              to={`/t/${encodeURIComponent(tag)}`}
+              className="text-sm text-primary hover:underline"
+            >
+              #{tag}
+            </Link>
+          ))}
+        </div>
+      )}
+    </div>
+  );
+}
+
 function PostDetailContent({ event }: { event: NostrEvent }) {
   const { user } = useCurrentUser();
   const author = useAuthor(event.pubkey);
@@ -640,6 +693,7 @@ function PostDetailContent({ event }: { event: NostrEvent }) {
         {/* Post content — kind-based dispatch (same as NoteCard) */}
         {isVine || isPoll || isGeocache || isFoundLog || isColor || isFollowPack ? (
           <>
+            {isVine && <VineDetailContent event={event} />}
             {isPoll && <PollContent event={event} />}
             {isGeocache && <GeocacheContent event={event} />}
             {isFoundLog && <FoundLogContent event={event} />}