diff --git a/web/src/components/AppSidebar/AppSidebar.tsx b/web/src/components/AppSidebar/AppSidebar.tsx
index 7bea8109..261b980e 100644
--- a/web/src/components/AppSidebar/AppSidebar.tsx
+++ b/web/src/components/AppSidebar/AppSidebar.tsx
@@ -55,7 +55,6 @@ import SidebarRow, { SIDEBAR_ROW_CLASSES, SIDEBAR_ROW_FOCUS_CLASSES, SidebarRowI
 import SidebarSection, { SIDEBAR_SECTION_STACK_CLASSES } from "./SidebarSection";
 import SpaceSwitcher from "./SpaceSwitcher";
 import {
-  SIDEBAR_FOOTER_CLASSES,
   SIDEBAR_LEADING_SLOT_CLASSES,
   SIDEBAR_NAV_LEADING_SLOT_CLASSES,
   SIDEBAR_RAIL_CLASSES,
@@ -576,7 +575,7 @@ const AppSidebar = ({ className }: { className?: string }) => {
       <div className={cn("min-h-0 flex-1 overflow-y-auto overflow-x-hidden pt-2 pb-3 [scrollbar-width:thin]", SIDEBAR_RAIL_CLASSES)}>
         <RouteSidebarContent />
       </div>
-      <footer className={cn("shrink-0 border-t border-border/70", SIDEBAR_FOOTER_CLASSES)}>
+      <footer className="shrink-0 border-t border-border/70">
         {currentUser ? (
           <UserMenu />
         ) : (
diff --git a/web/src/components/AppSidebar/sidebar-layout.ts b/web/src/components/AppSidebar/sidebar-layout.ts
index be133a78..b47bdfe0 100644
--- a/web/src/components/AppSidebar/sidebar-layout.ts
+++ b/web/src/components/AppSidebar/sidebar-layout.ts
@@ -2,9 +2,9 @@ import { cva } from "class-variance-authority";
 
 /**
  * The sidebar is drawn on one shared rail: inset surfaces start 12px from the shell,
- * visible artwork starts at 20px, and first-level labels start at 44px. Rows reserve a
- * 20px artwork column; compact navigation reaches the same rails with a 16px glyph and
- * an 8px label gap. Keeping those coordinates here prevents independent pill geometry.
+ * visible artwork starts at 20px, and first-level labels start at 44px. The full-bleed
+ * footer action pads its content directly onto those same rails. Rows reserve a 20px
+ * artwork column; compact navigation reaches the label rail with an 8px gap.
  */
 export const SIDEBAR_RAIL_CLASSES = "px-3";
 // Content rows reserve 20px so 16px icons and 20px marks share a stable label rail.
@@ -13,23 +13,22 @@ export const SIDEBAR_LEADING_SLOT_CLASSES = "flex size-5 shrink-0 items-center j
 export const SIDEBAR_NAV_LEADING_SLOT_CLASSES = "flex size-4 shrink-0 items-center justify-center";
 
 /**
- * Only two width behaviours are allowed: brand controls hug their content while rows
- * fill the shared rail. Heights are fixed from the artwork size, so data cannot change
- * a surface's padding or vertical position.
+ * Brand controls hug their content, ordinary rows fill the inset rail, and the account
+ * action fills the footer shell (or becomes a rail-aligned square when collapsed).
+ * Heights stay fixed so data cannot change a surface's padding or vertical position.
  */
-export const sidebarSurfaceVariants = cva("min-w-0 items-center rounded-md", {
+export const sidebarSurfaceVariants = cva("min-w-0 items-center", {
   variants: {
     role: {
-      row: "flex h-8 w-full gap-1 px-2 text-ui",
-      navPill: "relative flex h-8 px-2",
-      headerBrand: "flex h-9 max-w-full gap-1 px-2",
-      mobileBrand: "flex h-9 max-w-full gap-1.5 px-1",
-      account: "flex h-9 w-full gap-1 px-2",
+      row: "flex h-8 w-full gap-1 rounded-md px-2 text-ui",
+      navPill: "relative flex h-8 rounded-md px-2",
+      headerBrand: "flex h-9 max-w-full gap-1 rounded-md px-2",
+      mobileBrand: "flex h-9 max-w-full gap-1.5 rounded-md px-1",
+      account: "flex h-9 w-full gap-1 rounded-none px-5",
+      accountCollapsed: "ms-3 flex size-9 rounded-md p-2",
     },
   },
   defaultVariants: {
     role: "row",
   },
 });
-
-export const SIDEBAR_FOOTER_CLASSES = `${SIDEBAR_RAIL_CLASSES} py-1.5`;
diff --git a/web/src/components/UserMenu.tsx b/web/src/components/UserMenu.tsx
index a3f79a0b..a37d64d6 100644
--- a/web/src/components/UserMenu.tsx
+++ b/web/src/components/UserMenu.tsx
@@ -129,9 +129,8 @@ const UserMenu = (props: Props) => {
         disabled={!currentUser}
         aria-label={triggerLabel}
         className={cn(
-          sidebarSurfaceVariants({ role: "account" }),
+          sidebarSurfaceVariants({ role: collapsed ? "accountCollapsed" : "account" }),
           "cursor-pointer text-start text-foreground transition-colors hover:bg-sidebar-accent focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-inset focus-visible:ring-ring/50 data-popup-open:bg-sidebar-accent",
-          collapsed && "w-9",
         )}
       >
         <div className={cn(SIDEBAR_LEADING_SLOT_CLASSES, "relative")}>
@@ -174,7 +173,7 @@ const UserMenu = (props: Props) => {
           </span>
         )}
       </DropdownMenuTrigger>
-      <DropdownMenuContent align="start" className="w-[var(--anchor-width)]">
+      <DropdownMenuContent align={collapsed ? "start" : "center"} className={cn(!collapsed && "w-[calc(var(--anchor-width)-1.5rem)]")}>
         <DropdownMenuItem onClick={() => navigateFromMenu(`/u/${encodeURIComponent(currentUser?.username ?? "")}`)}>
           <SquareUserIcon className="size-4 text-muted-foreground" />
           {t("common.profile")}
diff --git a/web/tests/app-sidebar-logo.test.tsx b/web/tests/app-sidebar-logo.test.tsx
index 344589b5..87641064 100644
--- a/web/tests/app-sidebar-logo.test.tsx
+++ b/web/tests/app-sidebar-logo.test.tsx
@@ -343,7 +343,9 @@ describe("App sidebar logo", () => {
 
     const footer = screen.getByRole("button", { name: "User menu" }).closest("footer");
     expect(footer).not.toBeNull();
-    expect(footer).toHaveClass("px-3", "py-1.5");
+    expect(footer).not.toHaveClass("px-3");
+    expect(footer).not.toHaveClass("py-1");
+    expect(footer).not.toHaveClass("py-1.5");
     expect(footer?.childElementCount).toBe(1);
     expect(screen.queryByRole("link", { name: /^common\.inbox/ })).not.toBeInTheDocument();
   });
@@ -403,7 +405,10 @@ describe("App sidebar logo", () => {
     const about = navigation.getByRole("link", { name: "common.about" });
     expect(about).toHaveAttribute("href", "/about");
     expectCollapsedNavPill(about, "common.about");
-    expect(screen.getByRole("link", { name: "common.sign-in-to-memos" }).closest("footer")).not.toBeNull();
+    const signIn = screen.getByRole("link", { name: "common.sign-in-to-memos" });
+    expect(signIn).toHaveClass("w-full", "px-5");
+    expect(signIn).not.toHaveClass("rounded-md");
+    expect(signIn.closest("footer")).not.toBeNull();
     expect(screen.queryByRole("button", { name: "editor.new-memo" })).not.toBeInTheDocument();
     expect(screen.queryByRole("link", { name: "common.home" })).not.toBeInTheDocument();
   });
diff --git a/web/tests/user-menu.test.tsx b/web/tests/user-menu.test.tsx
index 1fca5b17..04195aad 100644
--- a/web/tests/user-menu.test.tsx
+++ b/web/tests/user-menu.test.tsx
@@ -79,7 +79,7 @@ describe("User menu", () => {
     expect(mocks.navigateTo).toHaveBeenCalledWith("/archived");
   });
 
-  it("uses a vertical ellipsis trigger, inset menu width, and preserves the Inbox unread state", async () => {
+  it("uses a full-bleed footer trigger, inset menu width, and preserves the Inbox unread state", async () => {
     mocks.notifications = [{ status: 1 }, { status: 1 }, { status: 2 }];
     render(
       <MemoryRouter initialEntries={["/Inbox/"]}>
@@ -88,7 +88,8 @@ describe("User menu", () => {
     );
 
     const trigger = screen.getByRole("button", { name: "Steven, common.more, 2 inbox.unread" });
-    expect(trigger).toHaveClass("h-9", "w-full", "gap-1", "rounded-md", "px-2");
+    expect(trigger).toHaveClass("h-9", "w-full", "gap-1", "px-5");
+    expect(trigger).not.toHaveClass("rounded-md");
     expect(trigger.firstElementChild).toHaveClass("size-5");
     expect(trigger.querySelector(".lucide-ellipsis-vertical")).not.toBeNull();
     expect(trigger.querySelector(".lucide-chevrons-up-down")).toBeNull();
@@ -97,7 +98,7 @@ describe("User menu", () => {
 
     const inbox = await screen.findByRole("menuitem", { name: "common.inbox, 2 inbox.unread" });
     const menu = screen.getByRole("menu");
-    expect(menu).toHaveClass("w-[var(--anchor-width)]");
+    expect(menu).toHaveClass("w-[calc(var(--anchor-width)-1.5rem)]");
     expect(menu).not.toHaveClass("min-w-56");
     expect(inbox).toHaveAttribute("aria-current", "page");
     expect(inbox).toHaveTextContent("common.inbox");
@@ -107,4 +108,18 @@ describe("User menu", () => {
     expect(mocks.setMobileOpen).toHaveBeenCalledWith(false);
     expect(mocks.navigateTo).toHaveBeenCalledWith("/inbox");
   });
+
+  it("keeps the collapsed trigger on the artwork rail", () => {
+    render(
+      <MemoryRouter initialEntries={["/"]}>
+        <UserMenu collapsed />
+      </MemoryRouter>,
+    );
+
+    const trigger = screen.getByRole("button", { name: /Steven/ });
+    expect(trigger).toHaveClass("ms-3", "size-9", "rounded-md", "p-2");
+    expect(trigger).not.toHaveClass("w-full");
+    expect(trigger).not.toHaveClass("px-5");
+    expect(trigger).not.toHaveClass("rounded-none");
+  });
 });