diff --git a/apps/operator/components/NotificationDrawer.vue b/apps/operator/components/NotificationDrawer.vue
new file mode 100644
index 0000000..946e717
--- /dev/null
+++ b/apps/operator/components/NotificationDrawer.vue
@@ -0,0 +1,236 @@
+<script setup lang="ts">
+// Right-anchored notification inbox. Slides in when the bell is clicked.
+// Same dismissal pattern as the other floating mounts (CommandPalette /
+// IncidentModal): backdrop click, Escape, X, plus auto-close on route
+// change so navigating from "Preferences" doesn't leave the drawer hanging.
+
+const { isOpen, items, close, markRead, markAllRead } = useNotifications()
+const route = useRoute()
+
+watch(() => route.path, () => {
+  if (isOpen.value) close()
+})
+
+onMounted(() => {
+  const onKey = (e: KeyboardEvent) => {
+    if (e.key === 'Escape' && isOpen.value) close()
+  }
+  document.addEventListener('keydown', onKey)
+  onBeforeUnmount(() => document.removeEventListener('keydown', onKey))
+})
+</script>
+
+<template>
+  <Teleport to="body">
+    <Transition name="drawer-fade">
+      <div v-if="isOpen" class="backdrop" @click="close" />
+    </Transition>
+    <Transition name="drawer-slide">
+      <aside v-if="isOpen" class="drawer" role="dialog" aria-label="Notifications" @click.stop>
+        <header>
+          <div>
+            <Eyebrow>Notifications</Eyebrow>
+            <h2>Inbox</h2>
+          </div>
+          <button class="x" type="button" aria-label="Close" @click="close">
+            <UiIcon name="x" :size="13" />
+          </button>
+        </header>
+
+        <ul class="list">
+          <li
+            v-for="n in items"
+            :key="n.id"
+            :class="['row', { unread: n.unread }]"
+            tabindex="0"
+            @click="markRead(n.id)"
+            @keydown.enter="markRead(n.id)"
+          >
+            <span class="rail">
+              <span v-if="n.unread" class="dot" :data-tone="n.tone" />
+            </span>
+            <span class="icon-tile" :data-tone="n.tone">
+              <UiIcon :name="n.icon" :size="14" />
+            </span>
+            <div class="body">
+              <div class="line">
+                <span class="title">{{ n.title }}</span>
+                <Mono dim class="when">{{ n.when }}</Mono>
+              </div>
+              <div class="desc">{{ n.body }}</div>
+            </div>
+          </li>
+
+          <li v-if="!items.length" class="empty">
+            <Mono dim>// no notifications</Mono>
+          </li>
+        </ul>
+
+        <footer>
+          <button type="button" class="link" @click="markAllRead">Mark all read</button>
+          <NuxtLink to="/settings" class="link prefs" @click="close">
+            Preferences
+            <UiIcon name="chevRight" :size="11" />
+          </NuxtLink>
+        </footer>
+      </aside>
+    </Transition>
+  </Teleport>
+</template>
+
+<style scoped>
+.backdrop {
+  position: fixed;
+  inset: 0;
+  background: rgba(0, 0, 0, 0.45);
+  z-index: 190;
+}
+
+.drawer {
+  position: fixed;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  width: min(480px, 100vw);
+  background: var(--elevated);
+  border-left: 1px solid var(--border);
+  box-shadow: -16px 0 48px rgba(0, 0, 0, 0.35);
+  z-index: 200;
+  display: flex;
+  flex-direction: column;
+  overflow: hidden;
+}
+
+header {
+  padding: 18px 22px 14px 22px;
+  border-bottom: 1px solid var(--border);
+  display: flex;
+  justify-content: space-between;
+  align-items: flex-start;
+}
+h2 {
+  margin: 4px 0 0 0;
+  font-family: var(--font-display);
+  font-weight: 600;
+  font-size: 22px;
+  letter-spacing: -0.02em;
+}
+.x {
+  width: 28px;
+  height: 28px;
+  border: 0;
+  border-radius: 6px;
+  background: transparent;
+  color: var(--text-mute);
+  cursor: pointer;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+}
+.x:hover { background: var(--surface); color: var(--text); }
+
+.list {
+  list-style: none;
+  margin: 0;
+  padding: 8px 8px 0 8px;
+  overflow-y: auto;
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+}
+
+.row {
+  display: grid;
+  grid-template-columns: 10px 36px 1fr;
+  gap: 12px;
+  padding: 12px 12px 12px 6px;
+  border-radius: 8px;
+  cursor: pointer;
+  background: transparent;
+  transition: background 0.1s;
+}
+.row:hover, .row:focus { background: var(--surface); outline: none; }
+.row.unread { background: var(--surface); }
+.row.unread:hover { background: var(--bg); }
+
+.rail { display: flex; align-items: flex-start; justify-content: center; padding-top: 14px; }
+.dot {
+  width: 6px;
+  height: 6px;
+  border-radius: 999px;
+  background: var(--warn);
+}
+.dot[data-tone='info']    { background: var(--info); }
+.dot[data-tone='ok']      { background: var(--ok); }
+.dot[data-tone='bad']     { background: var(--bad); }
+.dot[data-tone='neutral'] { background: var(--text-mute); }
+
+.icon-tile {
+  width: 36px;
+  height: 36px;
+  border-radius: 8px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  flex-shrink: 0;
+  background: var(--surface);
+  color: var(--text-dim);
+  border: 1px solid var(--border);
+}
+.icon-tile[data-tone='warn']    { background: rgba(232, 154, 31, 0.12); color: var(--warn); border-color: rgba(232, 154, 31, 0.24); }
+.icon-tile[data-tone='info']    { background: rgba(42, 111, 219, 0.10); color: var(--info); border-color: rgba(42, 111, 219, 0.22); }
+.icon-tile[data-tone='ok']      { background: rgba(31, 138, 91, 0.10);  color: var(--ok);   border-color: rgba(31, 138, 91, 0.20); }
+.icon-tile[data-tone='bad']     { background: rgba(226, 48, 48, 0.10);  color: var(--bad);  border-color: rgba(226, 48, 48, 0.22); }
+
+.body { min-width: 0; }
+.line {
+  display: flex;
+  justify-content: space-between;
+  align-items: baseline;
+  gap: 12px;
+}
+.title { font-size: 13px; font-weight: 600; line-height: 1.35; }
+.when { flex-shrink: 0; white-space: nowrap; }
+.desc {
+  margin-top: 3px;
+  font-size: 12px;
+  color: var(--text-mute);
+  line-height: 1.45;
+}
+
+.empty { padding: 40px 12px; text-align: center; }
+
+footer {
+  border-top: 1px solid var(--border);
+  background: var(--bg);
+  padding: 12px 18px;
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+}
+.link {
+  appearance: none;
+  background: transparent;
+  border: 0;
+  color: var(--text);
+  font-family: inherit;
+  font-size: 13px;
+  cursor: pointer;
+  padding: 6px 10px;
+  border-radius: 6px;
+  text-decoration: none;
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+}
+.link:hover { background: var(--surface); }
+.prefs { color: var(--text-dim); }
+
+/* Animations */
+.drawer-fade-enter-active, .drawer-fade-leave-active { transition: opacity 0.18s ease; }
+.drawer-fade-enter-from, .drawer-fade-leave-to { opacity: 0; }
+
+.drawer-slide-enter-active, .drawer-slide-leave-active { transition: transform 0.22s cubic-bezier(0.2, 0.7, 0.2, 1); }
+.drawer-slide-enter-from, .drawer-slide-leave-to { transform: translateX(100%); }
+</style>
diff --git a/apps/operator/components/OpTopbar.vue b/apps/operator/components/OpTopbar.vue
index 125e0af..4a9ed95 100644
--- a/apps/operator/components/OpTopbar.vue
+++ b/apps/operator/components/OpTopbar.vue
@@ -1,5 +1,6 @@
 <script setup lang="ts">
 const { open: openPalette } = useCommandPalette()
+const { open: openNotifications, unreadCount } = useNotifications()
 const { env } = useEnv()
 
 const ENVS = {
@@ -23,9 +24,9 @@ const ENVS = {
     </button>
 
     <div class="right">
-      <button class="icon-btn" title="Notifications">
+      <button class="icon-btn" title="Notifications" @click="openNotifications">
         <UiIcon name="bell" :size="14" />
-        <span class="icon-btn-dot" />
+        <span v-if="unreadCount > 0" class="icon-btn-dot" />
       </button>
 
       <UserMenu />
diff --git a/apps/operator/composables/useNotifications.ts b/apps/operator/composables/useNotifications.ts
new file mode 100644
index 0000000..53874f8
--- /dev/null
+++ b/apps/operator/composables/useNotifications.ts
@@ -0,0 +1,33 @@
+// Shared notification-drawer state. The bell in the topbar opens the drawer
+// via `open()`; the drawer reads from `items` and toggles `unread` via
+// `markRead` / `markAllRead`. `unreadCount` powers the red dot on the bell.
+//
+// All state is in-memory and re-seeds from the NOTIFICATIONS fixture on each
+// full reload — there's no backend yet. When the real notifications source
+// lands (see follow-ups in NEXT-STEPS.md), swap `items` for a useFetch.
+
+import { NOTIFICATIONS, type NotificationItem } from '~/data/fixtures'
+
+const isOpen = ref(false)
+const items = ref<NotificationItem[]>(NOTIFICATIONS.map((n) => ({ ...n })))
+
+const unreadCount = computed(() => items.value.filter((n) => n.unread).length)
+
+export const useNotifications = () => ({
+  isOpen,
+  items,
+  unreadCount,
+  open: () => {
+    isOpen.value = true
+  },
+  close: () => {
+    isOpen.value = false
+  },
+  markRead: (id: string) => {
+    const i = items.value.find((n) => n.id === id)
+    if (i) i.unread = false
+  },
+  markAllRead: () => {
+    for (const n of items.value) n.unread = false
+  },
+})
diff --git a/apps/operator/data/fixtures.ts b/apps/operator/data/fixtures.ts
index cd9fb68..96c77ec 100644
--- a/apps/operator/data/fixtures.ts
+++ b/apps/operator/data/fixtures.ts
@@ -4,6 +4,8 @@
 // derivable from those should NOT live here. See OPERATOR-PLAN.md follow-ups
 // for the path from each fixture to a real implementation.
 
+import type { IconName } from '~/components/UiIcon.vue'
+
 export type ServiceStatus = 'ok' | 'warn' | 'bad'
 export interface PlatformService {
   id: string
@@ -105,3 +107,28 @@ export const OP_AUDIT: AuditEntry[] = [
   { id: 'op_8812', when: '10:12:08', actor: 'Mikkel Nørgaard', role: 'engineer',       action: 'feature_flag.created', target: 'beta_ai_summaries',              tenant: '—',                    ip: '10.0.4.21', tone: 'info' },
   { id: 'op_8811', when: '09:30:00', actor: 'Anne Baslund',    role: 'platform admin', action: 'tos.published',        target: 'v2026.05 · all tenants',         tenant: '—',                    ip: '10.0.4.18', tone: 'info' },
 ]
+
+export type NotificationKind = 'security' | 'user' | 'billing' | 'integration' | 'support' | 'signin'
+export type NotificationTone = 'warn' | 'info' | 'neutral' | 'ok' | 'bad'
+export interface NotificationItem {
+  id: string
+  kind: NotificationKind
+  title: string
+  body: string
+  when: string
+  icon: IconName
+  tone: NotificationTone
+  unread: boolean
+}
+
+// Seed list mirrors the design screenshot. The real source will be an event
+// stream / Mongo collection later; for now this is the shell other features
+// can plug into. See the "notifications backend" follow-up in NEXT-STEPS.md.
+export const NOTIFICATIONS: NotificationItem[] = [
+  { id: 'n_2821', kind: 'security',    icon: 'shield',  tone: 'warn',    when: '2 min ago',  unread: true,  title: 'DMARC policy weak on baslund.dk',    body: 'Set the policy to at least quarantine to reduce spoofing.' },
+  { id: 'n_2820', kind: 'user',        icon: 'users',   tone: 'info',    when: '14 min ago', unread: true,  title: 'Mikkel accepted your invitation',     body: 'mikkel@dezky.com joined as Admin.' },
+  { id: 'n_2819', kind: 'billing',     icon: 'card',    tone: 'neutral', when: '1 h ago',    unread: false, title: 'Invoice INV-2026-005 paid',            body: '1.940,00 DKK · Visa •••• 4242' },
+  { id: 'n_2818', kind: 'integration', icon: 'plug',    tone: 'neutral', when: '3 h ago',    unread: false, title: 'Notion SAML connection live',          body: 'Connected via Authentik. 11 users provisioned.' },
+  { id: 'n_2817', kind: 'support',     icon: 'help',    tone: 'neutral', when: 'Yesterday',  unread: false, title: 'Sofie replied to your ticket TKT-2832', body: 'Update on missing mobile recordings.' },
+  { id: 'n_2816', kind: 'signin',      icon: 'bell',    tone: 'bad',     when: '2 d ago',    unread: false, title: 'Failed sign-in attempts on oliver@',   body: '3 attempts from 203.0.113.4 — IP added to watchlist.' },
+]
diff --git a/apps/operator/layouts/default.vue b/apps/operator/layouts/default.vue
index 21c254b..eacee86 100644
--- a/apps/operator/layouts/default.vue
+++ b/apps/operator/layouts/default.vue
@@ -59,6 +59,7 @@ onMounted(() => {
     <CommandPalette />
     <ImpersonationModal />
     <IncidentModal />
+    <NotificationDrawer />
     <TweaksPanel />
   </div>
 </template>