diff --git a/apps/web/src/components/pullRequest/PullRequestDetailPanel.tsx b/apps/web/src/components/pullRequest/PullRequestDetailPanel.tsx
index 236d7cd86ad996f39fe3ce05b957fe5e03ba7c6e..5b86ef5ee3ba8d3fd705e061ba9c51a2eb214cfa 100644
--- a/apps/web/src/components/pullRequest/PullRequestDetailPanel.tsx
+++ b/apps/web/src/components/pullRequest/PullRequestDetailPanel.tsx
@@ -1447,7 +1447,13 @@ export function PullRequestDetailPanel({
           onPickerOpenChange={setThreadPickerOpen}
         />
       ) : null}
-      <div className="@container/pr-header grid min-w-0 shrink-0 grid-cols-[minmax(0,1fr)_auto] items-start gap-x-2 border-b border-border/60">
+      <div
+        className={cn(
+          "@container/pr-header grid min-w-0 shrink-0 grid-cols-[minmax(0,1fr)_auto] items-start gap-x-2",
+          detail && "border-b border-border/60",
+          !detail && !onClose && "hidden",
+        )}
+      >
         <div className="ml-4 grid h-7 min-w-0 items-center overflow-hidden">
           <div
             aria-hidden={condensed}
@@ -2513,7 +2519,7 @@ export function PullRequestDetailPanel({
       </div>
 
       <div
-        className="relative min-h-0 flex-1 overflow-hidden"
+        className="relative flex min-h-0 flex-1 flex-col overflow-hidden"
         onScrollCapture={(event) => {
           const scroller = event.target as HTMLElement;
           scrollerRef.current = scroller;
diff --git a/apps/web/src/components/pullRequest/PullRequestsUnavailableState.tsx b/apps/web/src/components/pullRequest/PullRequestsUnavailableState.tsx
index 26c80326aec0b4125b93818d442dc4c2256882c0..f17ec882c5a0a935b0c1abf9549441a93161009e 100644
--- a/apps/web/src/components/pullRequest/PullRequestsUnavailableState.tsx
+++ b/apps/web/src/components/pullRequest/PullRequestsUnavailableState.tsx
@@ -25,7 +25,7 @@ export function PullRequestsUnavailableState({
   gitHubUrl?: string;
 }) {
   return (
-    <Empty className="px-4 py-16 md:px-4">
+    <Empty className="min-h-0 justify-center-safe overflow-y-auto px-4 py-16 md:px-4 [&>*]:shrink-0">
       <EmptyMedia variant="icon">
         <GitPullRequestIcon />
       </EmptyMedia>
diff --git a/apps/web/src/routes/_chat.pull-requests.tsx b/apps/web/src/routes/_chat.pull-requests.tsx
index 24dcab132b861a95ddfba3122a0729a40e326bd3..5a21a2cc37ff7395ee8c9c1a551e39b6c1dd8416 100644
--- a/apps/web/src/routes/_chat.pull-requests.tsx
+++ b/apps/web/src/routes/_chat.pull-requests.tsx
@@ -2362,7 +2362,7 @@ function PullRequestsColumn({
         {/* The top padding is the shared fade band's height, the same pairing the
             settings page makes: at rest the controls sit fully below the mask, and only
             content actually passing under the chrome fades. */}
-        <WorkspacePageContainer width="expanded" className="gap-4">
+        <WorkspacePageContainer width="expanded" className="min-h-full gap-4">
           <div className="flex flex-col gap-3">
             <div ref={inFlowSearchRef} className="flex flex-wrap items-center gap-2">
               <div className="min-w-0 basis-full @lg/pr-list:basis-0 @lg/pr-list:flex-1">