diff --git a/apps/operator/components/OpTopbar.vue b/apps/operator/components/OpTopbar.vue
index 06d6082..dffc900 100644
--- a/apps/operator/components/OpTopbar.vue
+++ b/apps/operator/components/OpTopbar.vue
@@ -1,7 +1,6 @@
 <script setup lang="ts">
 withDefaults(defineProps<{ oncall?: boolean }>(), { oncall: true })
 
-const { user } = useOidcAuth()
 const { state: tweaks } = useTweaks()
 const { open: openPalette } = useCommandPalette()
 
@@ -39,7 +38,7 @@ const env = computed(() => tweaks.value.env)
       <span class="icon-btn-dot" />
     </button>
 
-    <Avatar :name="user?.userInfo?.name || user?.userName || '?'" :size="26" />
+    <UserMenu />
   </header>
 </template>
 
diff --git a/apps/operator/components/UserMenu.vue b/apps/operator/components/UserMenu.vue
new file mode 100644
index 0000000..7745563
--- /dev/null
+++ b/apps/operator/components/UserMenu.vue
@@ -0,0 +1,163 @@
+<script setup lang="ts">
+// Avatar dropdown shown in the topbar. Replaces the inert sidebar profile
+// card that used to live in OpSidebar. Owns its own open/close state plus
+// outside-click + Escape + route-change dismissal so the parent topbar stays
+// dumb.
+
+const { user, logout } = useOidcAuth()
+const { state: tweaks, setTheme } = useTweaks()
+const route = useRoute()
+
+const open = ref(false)
+
+const displayName = computed(() => user.value?.userInfo?.name || user.value?.userName || 'operator')
+const email = computed(() => (user.value?.userInfo as { email?: string } | undefined)?.email ?? '')
+
+function toggle() {
+  open.value = !open.value
+}
+function close() {
+  open.value = false
+}
+function flipTheme() {
+  setTheme(tweaks.value.theme === 'dark' ? 'light' : 'dark')
+}
+
+async function signOut() {
+  close()
+  await logout()
+}
+
+watch(() => route.path, close)
+
+onMounted(() => {
+  const onKey = (e: KeyboardEvent) => {
+    if (e.key === 'Escape' && open.value) close()
+  }
+  document.addEventListener('keydown', onKey)
+  onBeforeUnmount(() => document.removeEventListener('keydown', onKey))
+})
+</script>
+
+<template>
+  <div class="usermenu">
+    <button class="trigger" :class="{ on: open }" type="button" :title="displayName" @click="toggle">
+      <Avatar :name="displayName" :size="26" />
+    </button>
+
+    <Teleport to="body">
+      <div v-if="open" class="scrim" @click="close" />
+    </Teleport>
+
+    <Transition name="menu">
+      <div v-if="open" class="menu" role="menu" aria-label="User menu">
+        <div class="ident">
+          <Avatar :name="displayName" :size="32" />
+          <div class="ident-meta">
+            <div class="ident-name">{{ displayName }}</div>
+            <Mono dim>{{ email }}</Mono>
+          </div>
+        </div>
+
+        <div class="divider" />
+
+        <button class="item" type="button" role="menuitem" @click="flipTheme">
+          <UiIcon :name="tweaks.theme === 'dark' ? 'shield' : 'shield'" :size="13" />
+          <span class="label">Theme · {{ tweaks.theme === 'dark' ? 'dark' : 'light' }}</span>
+          <Mono dim>{{ tweaks.theme === 'dark' ? 'switch to light' : 'switch to dark' }}</Mono>
+        </button>
+
+        <NuxtLink class="item" to="/settings" role="menuitem" @click="close">
+          <UiIcon name="shield" :size="13" />
+          <span class="label">Settings</span>
+        </NuxtLink>
+
+        <div class="divider" />
+
+        <button class="item danger" type="button" role="menuitem" @click="signOut">
+          <UiIcon name="logout" :size="13" />
+          <span class="label">Sign out</span>
+        </button>
+      </div>
+    </Transition>
+  </div>
+</template>
+
+<style scoped>
+.usermenu { position: relative; }
+
+.trigger {
+  appearance: none;
+  background: transparent;
+  border: 1px solid transparent;
+  border-radius: 999px;
+  padding: 0;
+  cursor: pointer;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+}
+.trigger:hover { border-color: var(--border); }
+.trigger.on { border-color: var(--border-hi); }
+
+/* Transparent full-screen scrim that catches outside clicks. Sits below the
+   menu since the menu is positioned in the same .usermenu container above. */
+.scrim {
+  position: fixed;
+  inset: 0;
+  z-index: 90;
+  background: transparent;
+}
+
+.menu {
+  position: absolute;
+  top: calc(100% + 8px);
+  right: 0;
+  z-index: 100;
+  width: 240px;
+  background: var(--elevated);
+  border: 1px solid var(--border);
+  border-radius: 10px;
+  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.32);
+  padding: 8px;
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+}
+
+.ident {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  padding: 8px 10px;
+}
+.ident-meta { min-width: 0; flex: 1; }
+.ident-name { font-size: 13px; font-weight: 500; }
+
+.divider { height: 1px; background: var(--border); margin: 4px 0; }
+
+.item {
+  appearance: none;
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  width: 100%;
+  padding: 8px 10px;
+  background: transparent;
+  border: 0;
+  border-radius: 6px;
+  color: var(--text);
+  font-family: inherit;
+  font-size: 13px;
+  text-align: left;
+  text-decoration: none;
+  cursor: pointer;
+}
+.item:hover { background: var(--surface); }
+.item .label { flex: 1; }
+.item.danger { color: var(--bad); }
+.item.danger:hover { background: rgba(240, 88, 88, 0.08); }
+
+.menu-enter-active, .menu-leave-active { transition: opacity 0.12s, transform 0.12s; }
+.menu-enter-from, .menu-leave-to { opacity: 0; transform: translateY(-4px); }
+</style>