diff --git a/apps/web/package.json b/apps/web/package.json
index c2333ec..ab95acf 100644
--- a/apps/web/package.json
+++ b/apps/web/package.json
@@ -14,18 +14,22 @@
     "@fontsource/jetbrains-mono": "^5.2.6",
     "@fontsource/onest": "^5.2.6",
     "@fontsource/unbounded": "^5.2.6",
+    "@material-symbols/svg-400": "^0.31.9",
     "@pipu/api-client": "workspace:*",
     "@pipu/core": "workspace:*",
     "@pipu/design-tokens": "workspace:*",
     "@pipu/i18n": "workspace:*",
     "@tanstack/react-query": "^5.80.7",
+    "@tanstack/react-router": "^1.120.20",
     "react": "^19.1.0",
     "react-dom": "^19.1.0",
     "react-i18next": "^15.5.3"
   },
   "devDependencies": {
     "@testing-library/dom": "^10.4.0",
+    "@testing-library/jest-dom": "^6.9.1",
     "@testing-library/react": "^16.3.0",
+    "@testing-library/user-event": "^14.6.1",
     "@types/react": "^19.1.8",
     "@types/react-dom": "^19.1.6",
     "@vitejs/plugin-react": "^4.5.2",
diff --git a/apps/web/src/App.test.tsx b/apps/web/src/App.test.tsx
index 061d3fe..c09e56e 100644
--- a/apps/web/src/App.test.tsx
+++ b/apps/web/src/App.test.tsx
@@ -1,51 +1,224 @@
-import { createApiClient } from '@pipu/api-client';
+import { AuthSession } from '@pipu/core';
 import { createI18n } from '@pipu/i18n';
-import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
-import { cleanup, fireEvent, render, screen } from '@testing-library/react';
+import { QueryClient } from '@tanstack/react-query';
+import { createMemoryHistory } from '@tanstack/react-router';
+import { cleanup, render, screen, waitFor, within } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
 import { I18nextProvider } from 'react-i18next';
 import { afterEach, describe, expect, it } from 'vitest';
 
 import { App } from './App';
+import { createAppRouter, safeRedirect } from './app/router';
+import { fakeApi, makeUser, type FakeUser } from './test/fakeApi';
 
 afterEach(cleanup);
 
-const info = {
-  name: 'pipu-music',
-  version: '0.1.0',
-  api_version: 'v1',
-  supported_locales: ['ru', 'en'],
-  min_android_version_code: 100,
-};
-
-async function renderApp(fetchImpl: typeof fetch) {
+async function renderApp(users: FakeUser[], path = '/', opts: { signedInAs?: FakeUser } = {}) {
+  const api = fakeApi(users);
   const i18n = await createI18n('ru');
-  const client = createApiClient({ baseUrl: 'http://localhost', fetch: fetchImpl });
+  const session = new AuthSession({ baseUrl: 'http://localhost', fetch: api.fetch, clientType: 'web' });
+  if (opts.signedInAs) await session.login(opts.signedInAs.username, opts.signedInAs.password);
+  else await session.restore();
+  const router = createAppRouter(session, { history: createMemoryHistory({ initialEntries: [path] }) });
+  const queryClient = new QueryClient({ defaultOptions: { queries: { retry: false } } });
   render(
     <I18nextProvider i18n={i18n}>
-      <QueryClientProvider client={new QueryClient({ defaultOptions: { queries: { retry: false } } })}>
-        <App client={client} />
-      </QueryClientProvider>
+      <App session={session} router={router} queryClient={queryClient} />
     </I18nextProvider>,
   );
+  return { api, router, session, i18n, user: userEvent.setup() };
 }
 
-describe('App', () => {
-  it('shows the server version when the server is online', async () => {
-    await renderApp(async () => Response.json(info));
-    expect(await screen.findByText('Сервер 0.1.0 на связи')).toBeTruthy();
+describe('sign-in', () => {
+  it('sends a guest to the login page and back after signing in', async () => {
+    const alice = makeUser('alice', 'user', { display_name: 'Алиса' });
+    const { user, router } = await renderApp([alice], '/settings');
+
+    await screen.findByRole('heading', { name: 'Вход' });
+    expect(router.state.location.pathname).toBe('/login');
+
+    await user.type(screen.getByLabelText('Логин'), 'alice');
+    await user.type(screen.getByLabelText('Пароль'), 'wrong');
+    await user.click(screen.getByRole('button', { name: 'Войти' }));
+    expect(await screen.findByRole('alert')).toHaveTextContent('Неверный логин или пароль');
+
+    await user.type(screen.getByLabelText('Пароль'), alice.password);
+    await user.click(screen.getByRole('button', { name: 'Войти' }));
+    await screen.findByRole('heading', { name: 'Настройки' });
+    expect(router.state.location.pathname).toBe('/settings');
   });
 
-  it('shows an error when the server is unreachable', async () => {
-    await renderApp(async () => {
-      throw new TypeError('Failed to fetch');
+  it('shows the bootstrap hint on first start', async () => {
+    await renderApp([makeUser('admin', 'admin', { must_change_credentials: true })], '/login');
+    expect(await screen.findByText(/Первый запуск/)).toBeInTheDocument();
+  });
+
+  it('forces the bootstrap admin to change credentials', async () => {
+    const admin = makeUser('admin', 'admin', { must_change_credentials: true });
+    const { user, router, api } = await renderApp([admin], '/admin/users', { signedInAs: admin });
+
+    await screen.findByRole('heading', { name: 'Смените логин и пароль' });
+    expect(router.state.location.pathname).toBe('/setup/admin');
+
+    const login = screen.getByLabelText('Новый логин');
+    expect(login).toHaveValue('admin');
+    await user.clear(login);
+    await user.type(login, 'owner');
+    await user.type(screen.getByLabelText('Новый пароль'), 'short');
+    await user.type(screen.getByLabelText('Повторите пароль'), 'shorter');
+    expect(screen.getByText('Пароли не совпадают')).toBeInTheDocument();
+    expect(screen.getByRole('button', { name: 'Сохранить и продолжить' })).toBeDisabled();
+
+    await user.clear(screen.getByLabelText('Повторите пароль'));
+    await user.type(screen.getByLabelText('Повторите пароль'), 'short');
+    await user.click(screen.getByRole('button', { name: 'Сохранить и продолжить' }));
+    expect(await screen.findByText('Пароль должен быть не короче 12 символов')).toBeInTheDocument();
+
+    for (const label of ['Новый пароль', 'Повторите пароль']) {
+      await user.clear(screen.getByLabelText(label));
+      await user.type(screen.getByLabelText(label), 'a-strong-owner-pass');
+    }
+    await user.click(screen.getByRole('button', { name: 'Сохранить и продолжить' }));
+    await screen.findByText('Привет, owner!');
+    expect(router.state.location.pathname).toBe('/');
+    expect(api.calls.find((c) => c.path === '/api/v1/me/bootstrap-credentials' && c.body)?.body).toMatchObject({
+      new_username: 'owner',
     });
-    expect(await screen.findByText(/Сервер не отвечает/)).toBeTruthy();
   });
 
-  it('switches the interface language', async () => {
-    await renderApp(async () => Response.json(info));
-    await screen.findByText('Сервер 0.1.0 на связи');
-    fireEvent.click(screen.getByRole('button', { name: 'EN' }));
-    expect(await screen.findByText('Server 0.1.0 is online')).toBeTruthy();
+  it('forces a temporary password to be replaced', async () => {
+    const bob = makeUser('bob', 'user', { must_change_password: true });
+    const { user } = await renderApp([bob], '/', { signedInAs: bob });
+    await screen.findByRole('heading', { name: 'Задайте новый пароль' });
+    await user.type(screen.getByLabelText('Новый пароль'), 'bobs-own-pass');
+    await user.type(screen.getByLabelText('Повторите пароль'), 'bobs-own-pass');
+    await user.click(screen.getByRole('button', { name: 'Сохранить и продолжить' }));
+    await screen.findByText('Привет, bob!');
+  });
+
+  it('signs out from the profile menu', async () => {
+    const alice = makeUser('alice', 'user');
+    const { user, router } = await renderApp([alice], '/', { signedInAs: alice });
+    await user.click(await screen.findByRole('button', { name: 'Меню профиля' }));
+    await user.click(screen.getByRole('menuitem', { name: 'Выйти' }));
+    await screen.findByRole('heading', { name: 'Вход' });
+    expect(router.state.location.pathname).toBe('/login');
+  });
+});
+
+describe('navigation by role', () => {
+  it('hides the admin section from listeners and blocks the route', async () => {
+    const alice = makeUser('alice', 'user');
+    const { router } = await renderApp([alice], '/admin/users', { signedInAs: alice });
+    await screen.findByText('Привет, alice!');
+    expect(router.state.location.pathname).toBe('/');
+    expect(screen.queryByRole('link', { name: 'Пользователи' })).not.toBeInTheDocument();
+  });
+
+  it('shows users but not the audit log to moderators', async () => {
+    const mod = makeUser('mod', 'moderator');
+    await renderApp([mod], '/', { signedInAs: mod });
+    expect(await screen.findByRole('link', { name: 'Пользователи' })).toBeInTheDocument();
+    expect(screen.queryByRole('link', { name: 'Журнал' })).not.toBeInTheDocument();
+  });
+
+  it('shows the audit log to admins', async () => {
+    const root = makeUser('root', 'admin');
+    await renderApp([root], '/admin/audit', { signedInAs: root });
+    expect(await screen.findByText('Записей пока нет')).toBeInTheDocument();
+  });
+});
+
+describe('users admin', () => {
+  it('lets an admin create a moderator and shows the temporary password once', async () => {
+    const root = makeUser('root', 'admin');
+    const anna = makeUser('anna', 'user', { last_login_at: new Date().toISOString() });
+    const { user } = await renderApp([root, anna], '/admin/users', { signedInAs: root });
+
+    const table = await screen.findByRole('table');
+    await within(table).findByText('@anna');
+    expect(within(table).getByText('(вы)')).toBeInTheDocument();
+
+    await user.click(screen.getByRole('button', { name: 'Создать пользователя' }));
+    const dialog = screen.getByRole('dialog', { name: 'Новый пользователь' });
+    await user.type(within(dialog).getByLabelText('Логин'), 'ilya');
+    await user.selectOptions(within(dialog).getByRole('combobox'), 'moderator');
+    await user.click(within(dialog).getByRole('button', { name: 'Создать' }));
+
+    const secret = await screen.findByRole('dialog', { name: 'Временный пароль' });
+    expect(within(secret).getByTestId('temporary-password')).toHaveTextContent('Temp-Pass-123');
+    await user.click(within(secret).getByRole('button', { name: 'Готово' }));
+    expect(screen.queryByTestId('temporary-password')).not.toBeInTheDocument();
+    expect(await within(table).findByText('@ilya')).toBeInTheDocument();
+  });
+
+  it('offers moderators only what they may do', async () => {
+    const mod = makeUser('mod', 'moderator');
+    const anna = makeUser('anna', 'user');
+    const other = makeUser('other', 'moderator');
+    const { user } = await renderApp([mod, anna, other], '/admin/users', { signedInAs: mod });
+
+    await screen.findByText('@anna');
+    expect(screen.queryByRole('button', { name: 'Действия с other' })).not.toBeInTheDocument();
+    expect(screen.queryByRole('button', { name: 'Действия с mod' })).not.toBeInTheDocument();
+
+    await user.click(screen.getByRole('button', { name: 'Действия с anna' }));
+    const items = screen.getAllByRole('menuitem').map((i) => i.textContent);
+    expect(items).toEqual(['Сбросить пароль', 'Заблокировать']);
+    await user.keyboard('{Escape}');
+
+    await user.click(screen.getByRole('button', { name: 'Создать пользователя' }));
+    const dialog = screen.getByRole('dialog', { name: 'Новый пользователь' });
+    expect(within(dialog).queryByRole('combobox')).not.toBeInTheDocument();
+  });
+
+  it('filters by role', async () => {
+    const root = makeUser('root', 'admin');
+    const { user, api } = await renderApp([root, makeUser('anna', 'user'), makeUser('mod', 'moderator')], '/admin/users', {
+      signedInAs: root,
+    });
+    await screen.findByText('@anna');
+    await user.click(screen.getByRole('button', { name: 'Модератор' }));
+    await waitFor(() => expect(screen.queryByText('@anna')).not.toBeInTheDocument());
+    expect(screen.getByText('@mod')).toBeInTheDocument();
+    expect(api.calls.some((c) => c.path === '/api/v1/admin/users' && c.method === 'GET')).toBe(true);
+  });
+});
+
+describe('language and settings', () => {
+  it('saves the language in the profile', async () => {
+    const alice = makeUser('alice', 'user');
+    const { user, api } = await renderApp([alice], '/settings', { signedInAs: alice });
+    await screen.findByRole('heading', { name: 'Настройки' });
+    const groups = screen.getAllByRole('group', { name: 'Язык' });
+    await user.click(within(groups[0]!).getByRole('button', { name: 'EN' }));
+    await screen.findByRole('heading', { name: 'Settings' });
+    await waitFor(() => expect(api.users.get(alice.id)?.locale).toBe('en'));
+  });
+
+  it('applies the theme from the profile', async () => {
+    const alice = makeUser('alice', 'user');
+    const { user } = await renderApp([alice], '/settings', { signedInAs: alice });
+    await user.click(await screen.findByRole('button', { name: 'Светлая' }));
+    await waitFor(() => expect(document.documentElement.dataset.theme).toBe('light'));
+    await user.click(screen.getByRole('button', { name: 'Тёмная' }));
+    await waitFor(() => expect(document.documentElement.dataset.theme).toBe('dark'));
+  });
+
+  it('switches the language on the login page without a session', async () => {
+    const { user } = await renderApp([], '/login');
+    await user.click(await screen.findByRole('button', { name: 'EN' }));
+    expect(await screen.findByRole('heading', { name: 'Sign in' })).toBeInTheDocument();
+  });
+});
+
+describe('safeRedirect', () => {
+  it.each([
+    ['/settings', '/settings'],
+    ['//evil.example', '/'],
+    ['https://evil.example', '/'],
+    [undefined, '/'],
+  ])('%s → %s', (input, expected) => {
+    expect(safeRedirect(input)).toBe(expected);
   });
 });
diff --git a/apps/web/src/App.tsx b/apps/web/src/App.tsx
index 0d96c5f..c85a44b 100644
--- a/apps/web/src/App.tsx
+++ b/apps/web/src/App.tsx
@@ -1,57 +1,30 @@
-import { createApiClient, type ApiClient } from '@pipu/api-client';
-import { checkServer } from '@pipu/core';
-import { SUPPORTED_LOCALES } from '@pipu/i18n';
-import { useQuery } from '@tanstack/react-query';
-import { useTranslation } from 'react-i18next';
+import type { AuthSession } from '@pipu/core';
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
+import { RouterProvider } from '@tanstack/react-router';
+import { useState } from 'react';
 
-const defaultClient = createApiClient();
+import type { createAppRouter } from './app/router';
+import { SessionProvider } from './app/session';
 
-export function App({ client = defaultClient }: { client?: ApiClient }) {
-  const { t, i18n } = useTranslation();
-  const server = useQuery({ queryKey: ['server-info'], queryFn: () => checkServer(client) });
+export function createQueryClient() {
+  return new QueryClient({ defaultOptions: { queries: { retry: 1, refetchOnWindowFocus: false } } });
+}
 
+export function App({
+  session,
+  router,
+  queryClient,
+}: {
+  session: AuthSession;
+  router: ReturnType<typeof createAppRouter>;
+  queryClient?: QueryClient;
+}) {
+  const [client] = useState(() => queryClient ?? createQueryClient());
   return (
-    <div className="shell">
-      <header className="top">
-        <div className="logo">
-          <span className="logo-dot" aria-hidden />
-          {t('app.name')}
-        </div>
-        <div className="langs" role="group" aria-label={t('language.label')}>
-          {SUPPORTED_LOCALES.map((l) => (
-            <button
-              key={l}
-              type="button"
-              aria-pressed={i18n.language === l}
-              onClick={() => {
-                void i18n.changeLanguage(l);
-                document.documentElement.lang = l;
-              }}
-            >
-              {l.toUpperCase()}
-            </button>
-          ))}
-        </div>
-      </header>
-      <main className="main">
-        <section className="card">
-          <h1>{t('app.name')}</h1>
-          <p className="muted">{t('app.tagline')}</p>
-          {server.data?.status === 'ok' ? (
-            <div className="status" data-state="ok" role="status">
-              {t('server.online', { version: server.data.info.version })}
-            </div>
-          ) : server.data ? (
-            <div className="status" data-state="error" role="status">
-              {t('server.offline')}
-            </div>
-          ) : (
-            <div className="status" data-state="pending" role="status">
-              {t('server.checking')}
-            </div>
-          )}
-        </section>
-      </main>
-    </div>
+    <SessionProvider session={session}>
+      <QueryClientProvider client={client}>
+        <RouterProvider router={router} />
+      </QueryClientProvider>
+    </SessionProvider>
   );
 }
diff --git a/apps/web/src/app/router.tsx b/apps/web/src/app/router.tsx
new file mode 100644
index 0000000..709a33f
--- /dev/null
+++ b/apps/web/src/app/router.tsx
@@ -0,0 +1,139 @@
+import type { AuthSession, AuthUser } from '@pipu/core';
+import {
+  createRootRouteWithContext,
+  createRoute,
+  createRouter,
+  Outlet,
+  redirect,
+  type ParsedLocation,
+} from '@tanstack/react-router';
+
+import { AuditPage } from '../pages/admin/AuditPage';
+import { UsersPage } from '../pages/admin/UsersPage';
+import { HomePage } from '../pages/HomePage';
+import { LoginPage } from '../pages/LoginPage';
+import { SettingsPage } from '../pages/SettingsPage';
+import { SetupPage } from '../pages/SetupPage';
+import { AppShell } from '../widgets/AppShell';
+import { RouteError } from '../widgets/RouteError';
+
+export interface RouterContext {
+  session: AuthSession;
+}
+
+/** Куда пользователю можно попасть сейчас: обязательные шаги первого входа важнее всего. */
+export function homeFor(user: AuthUser): '/setup/admin' | '/setup/password' | '/' {
+  if (user.must_change_credentials) return '/setup/admin';
+  if (user.must_change_password) return '/setup/password';
+  return '/';
+}
+
+function signedInUser(session: AuthSession): AuthUser | null {
+  return session.state.status === 'signed_in' ? session.state.user : null;
+}
+
+/** Внутренний путь из ?redirect=; внешние адреса игнорируются. */
+export function safeRedirect(target: unknown): string {
+  return typeof target === 'string' && target.startsWith('/') && !target.startsWith('//') ? target : '/';
+}
+
+function requireUser(session: AuthSession, location: ParsedLocation): AuthUser {
+  const user = signedInUser(session);
+  if (!user) throw redirect({ to: '/login', search: { redirect: location.href } });
+  return user;
+}
+
+const rootRoute = createRootRouteWithContext<RouterContext>()({
+  component: Outlet,
+  errorComponent: RouteError,
+});
+
+const loginRoute = createRoute({
+  getParentRoute: () => rootRoute,
+  path: '/login',
+  validateSearch: (search: Record<string, unknown>): { redirect?: string } =>
+    typeof search.redirect === 'string' ? { redirect: search.redirect } : {},
+  beforeLoad: ({ context, search }) => {
+    const user = signedInUser(context.session);
+    if (!user) return;
+    const home = homeFor(user);
+    if (home !== '/') throw redirect({ to: home });
+    throw redirect({ href: safeRedirect(search.redirect) });
+  },
+  component: LoginPage,
+});
+
+const setupAdminRoute = createRoute({
+  getParentRoute: () => rootRoute,
+  path: '/setup/admin',
+  beforeLoad: ({ context, location }) => {
+    const user = requireUser(context.session, location);
+    if (homeFor(user) !== '/setup/admin') throw redirect({ to: homeFor(user) });
+  },
+  component: () => <SetupPage variant="admin" />,
+});
+
+const setupPasswordRoute = createRoute({
+  getParentRoute: () => rootRoute,
+  path: '/setup/password',
+  beforeLoad: ({ context, location }) => {
+    const user = requireUser(context.session, location);
+    if (homeFor(user) !== '/setup/password') throw redirect({ to: homeFor(user) });
+  },
+  component: () => <SetupPage variant="password" />,
+});
+
+/** Каркас приложения: только для вошедших, прошедших обязательные шаги. */
+const appRoute = createRoute({
+  getParentRoute: () => rootRoute,
+  id: 'app',
+  beforeLoad: ({ context, location }) => {
+    const user = requireUser(context.session, location);
+    const home = homeFor(user);
+    if (home !== '/') throw redirect({ to: home });
+    return { user };
+  },
+  component: AppShell,
+});
+
+const homeRoute = createRoute({ getParentRoute: () => appRoute, path: '/', component: HomePage });
+
+const settingsRoute = createRoute({ getParentRoute: () => appRoute, path: '/settings', component: SettingsPage });
+
+const usersRoute = createRoute({
+  getParentRoute: () => appRoute,
+  path: '/admin/users',
+  beforeLoad: ({ context }) => {
+    if (context.user.role === 'user') throw redirect({ to: '/' });
+  },
+  component: UsersPage,
+});
+
+const auditRoute = createRoute({
+  getParentRoute: () => appRoute,
+  path: '/admin/audit',
+  beforeLoad: ({ context }) => {
+    if (context.user.role !== 'admin') throw redirect({ to: '/' });
+  },
+  component: AuditPage,
+});
+
+const routeTree = rootRoute.addChildren([
+  loginRoute,
+  setupAdminRoute,
+  setupPasswordRoute,
+  appRoute.addChildren([homeRoute, settingsRoute, usersRoute, auditRoute]),
+]);
+
+export function createAppRouter(session: AuthSession, opts: { history?: Parameters<typeof createRouter>[0]['history'] } = {}) {
+  const router = createRouter({ routeTree, context: { session }, defaultPreload: false, ...opts });
+  // Выход, блокировка, отзыв сессии — guards пересчитываются, и пользователь уходит на /login.
+  session.subscribe(() => void router.invalidate());
+  return router;
+}
+
+declare module '@tanstack/react-router' {
+  interface Register {
+    router: ReturnType<typeof createAppRouter>;
+  }
+}
diff --git a/apps/web/src/app/session.tsx b/apps/web/src/app/session.tsx
new file mode 100644
index 0000000..17d0e68
--- /dev/null
+++ b/apps/web/src/app/session.tsx
@@ -0,0 +1,67 @@
+import type { AuthSession, AuthState, AuthUser } from '@pipu/core';
+import { SUPPORTED_LOCALES, type Locale } from '@pipu/i18n';
+import { createContext, useContext, useEffect, useSyncExternalStore, type ReactNode } from 'react';
+import { useTranslation } from 'react-i18next';
+
+const SessionContext = createContext<AuthSession | null>(null);
+
+export function SessionProvider({ session, children }: { session: AuthSession; children: ReactNode }) {
+  return (
+    <SessionContext.Provider value={session}>
+      <UserEffects session={session} />
+      {children}
+    </SessionContext.Provider>
+  );
+}
+
+export function useSession(): AuthSession {
+  const s = useContext(SessionContext);
+  if (!s) throw new Error('useSession outside SessionProvider');
+  return s;
+}
+
+export function useAuthState(): AuthState {
+  const session = useSession();
+  return useSyncExternalStore(
+    (fn) => session.subscribe(fn),
+    () => session.state,
+  );
+}
+
+/** Текущий пользователь; вызывать только на защищённых страницах. */
+export function useUser(): AuthUser {
+  const state = useAuthState();
+  if (state.status !== 'signed_in') throw new Error('useUser: not signed in');
+  return state.user;
+}
+
+const isLocale = (l: string): l is Locale => (SUPPORTED_LOCALES as readonly string[]).includes(l);
+
+/** Применяет настройки вошедшего пользователя: язык и тему. */
+function UserEffects({ session }: { session: AuthSession }) {
+  const { i18n } = useTranslation();
+  const state = useSyncExternalStore(
+    (fn) => session.subscribe(fn),
+    () => session.state,
+  );
+  const user = state.status === 'signed_in' ? state.user : null;
+  const locale = user?.locale;
+  const theme = user?.ui_prefs.theme;
+
+  useEffect(() => {
+    if (locale && isLocale(locale) && locale !== i18n.language) void i18n.changeLanguage(locale);
+  }, [locale, i18n]);
+
+  useEffect(() => {
+    applyTheme(theme);
+  }, [theme]);
+
+  return null;
+}
+
+/** Тёмная тема по умолчанию (docs/design.md); system — по ОС через prefers-color-scheme (tokens.css). */
+export function applyTheme(theme: string | undefined) {
+  const root = document.documentElement;
+  if (theme === 'system') delete root.dataset.theme;
+  else root.dataset.theme = theme === 'light' ? 'light' : 'dark';
+}
diff --git a/apps/web/src/main.tsx b/apps/web/src/main.tsx
index ebec9a4..9911d14 100644
--- a/apps/web/src/main.tsx
+++ b/apps/web/src/main.tsx
@@ -1,12 +1,14 @@
 import './styles.css';
 
+import { AuthSession } from '@pipu/core';
 import { createI18n, pickLocale } from '@pipu/i18n';
-import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
 import { StrictMode } from 'react';
 import { createRoot } from 'react-dom/client';
 import { I18nextProvider } from 'react-i18next';
 
 import { App } from './App';
+import { createAppRouter } from './app/router';
+import { applyTheme } from './app/session';
 
 const LOCALE_KEY = 'pipu.locale';
 
@@ -19,9 +21,37 @@ function storedLocale(): string[] {
   }
 }
 
+/** «Chrome / Windows» — подпись сессии в списке устройств. */
+function deviceName(): string {
+  const ua = navigator.userAgent;
+  const browser = /Edg\//.test(ua)
+    ? 'Edge'
+    : /Firefox\//.test(ua)
+      ? 'Firefox'
+      : /Chrome\//.test(ua)
+        ? 'Chrome'
+        : /Safari\//.test(ua)
+          ? 'Safari'
+          : 'Browser';
+  const os = /Windows/.test(ua)
+    ? 'Windows'
+    : /Android/.test(ua)
+      ? 'Android'
+      : /iPhone|iPad/.test(ua)
+        ? 'iOS'
+        : /Mac OS X/.test(ua)
+          ? 'macOS'
+          : /Linux/.test(ua)
+            ? 'Linux'
+            : '';
+  return os ? `${browser} / ${os}` : browser;
+}
+
+applyTheme(undefined);
 const i18n = await createI18n(pickLocale([...storedLocale(), ...navigator.languages]));
 document.documentElement.lang = i18n.language;
 i18n.on('languageChanged', (l) => {
+  document.documentElement.lang = l;
   try {
     localStorage.setItem(LOCALE_KEY, l);
   } catch {
@@ -29,14 +59,15 @@ i18n.on('languageChanged', (l) => {
   }
 });
 
-const queryClient = new QueryClient({ defaultOptions: { queries: { retry: 1, refetchOnWindowFocus: false } } });
+const session = new AuthSession({ clientType: 'web', deviceName: deviceName() });
+// До первого рендера узнаём, есть ли сессия (refresh-cookie), — guards роутера решают сразу.
+await session.restore();
+const router = createAppRouter(session);
 
 createRoot(document.getElementById('root')!).render(
   <StrictMode>
     <I18nextProvider i18n={i18n}>
-      <QueryClientProvider client={queryClient}>
-        <App />
-      </QueryClientProvider>
+      <App session={session} router={router} />
     </I18nextProvider>
   </StrictMode>,
 );
diff --git a/apps/web/src/pages/AuthLayout.tsx b/apps/web/src/pages/AuthLayout.tsx
new file mode 100644
index 0000000..3707ac4
--- /dev/null
+++ b/apps/web/src/pages/AuthLayout.tsx
@@ -0,0 +1,26 @@
+import type { ReactNode } from 'react';
+
+import { Logo } from '../shared/ui/ui';
+import { LanguageSwitch } from '../widgets/LanguageSwitch';
+import s from './auth.module.css';
+
+/** Экран без каркаса: декоративный фон волны и стеклянная карточка по центру. */
+export function AuthLayout({ children, footer }: { children: ReactNode; footer?: ReactNode }) {
+  return (
+    <div className={s.screen}>
+      <div className={s.backdrop} aria-hidden>
+        <span className={s.blob1} />
+        <span className={s.blob2} />
+        <span className={s.blob3} />
+      </div>
+      <header className={s.top}>
+        <Logo />
+        <LanguageSwitch />
+      </header>
+      <main className={s.center}>
+        <section className={s.card}>{children}</section>
+        {footer && <div className={s.footer}>{footer}</div>}
+      </main>
+    </div>
+  );
+}
diff --git a/apps/web/src/pages/HomePage.tsx b/apps/web/src/pages/HomePage.tsx
new file mode 100644
index 0000000..9c0224e
--- /dev/null
+++ b/apps/web/src/pages/HomePage.tsx
@@ -0,0 +1,22 @@
+import { useTranslation } from 'react-i18next';
+
+import { useUser } from '../app/session';
+import { playIcon } from '../shared/ui/icons';
+import { Icon } from '../shared/ui/ui';
+import s from './home.module.css';
+
+/** Главная. Кнопка волны — заглушка до M4 (рекомендации). */
+export function HomePage() {
+  const { t } = useTranslation();
+  const user = useUser();
+  return (
+    <div className={s.home}>
+      <h1 className={s.greeting}>{t('home.greeting', { name: user.display_name ?? user.username })}</h1>
+      <div className={s.orb} aria-disabled="true">
+        <Icon src={playIcon} size={44} />
+        <span className={s.orbLabel}>{t('home.wave')}</span>
+      </div>
+      <p className={s.soon}>{t('home.wave_soon')}</p>
+    </div>
+  );
+}
diff --git a/apps/web/src/pages/LoginPage.tsx b/apps/web/src/pages/LoginPage.tsx
new file mode 100644
index 0000000..2826335
--- /dev/null
+++ b/apps/web/src/pages/LoginPage.tsx
@@ -0,0 +1,75 @@
+import { useQuery } from '@tanstack/react-query';
+import { useState, type FormEvent } from 'react';
+import { useTranslation } from 'react-i18next';
+
+import { useSession } from '../app/session';
+import { useErrorText } from '../shared/lib/errors';
+import { Button, Field, FormError } from '../shared/ui/ui';
+import { AuthLayout } from './AuthLayout';
+import s from './auth.module.css';
+
+export function LoginPage() {
+  const { t } = useTranslation(['auth', 'common']);
+  const session = useSession();
+  const errorText = useErrorText();
+  const [username, setUsername] = useState('');
+  const [password, setPassword] = useState('');
+  const [busy, setBusy] = useState(false);
+  const [error, setError] = useState<unknown>(null);
+
+  const info = useQuery({
+    queryKey: ['server-info'],
+    queryFn: async () => (await session.client.GET('/api/v1/server-info')).data ?? null,
+  });
+
+  const submit = async (e: FormEvent) => {
+    e.preventDefault();
+    setBusy(true);
+    setError(null);
+    try {
+      // Переход выполнит роутер: смена состояния сессии пересчитывает guards.
+      await session.login(username.trim(), password);
+    } catch (err) {
+      setError(err);
+      setPassword('');
+      setBusy(false);
+    }
+  };
+
+  return (
+    <AuthLayout footer={info.data ? `pipu ${info.data.version}` : undefined}>
+      <h1>{t('login.title')}</h1>
+      <p className={s.lead}>{t('login.subtitle')}</p>
+      {info.data?.bootstrap_required && <div className={s.hint}>{t('login.bootstrap_hint')}</div>}
+      <form onSubmit={(e) => void submit(e)} noValidate>
+        <Field
+          label={t('login.username')}
+          value={username}
+          onChange={setUsername}
+          autoComplete="username"
+          autoCapitalize="none"
+          spellCheck={false}
+          required
+        />
+        <Field
+          label={t('login.password')}
+          type="password"
+          value={password}
+          onChange={setPassword}
+          autoComplete="current-password"
+          required
+        />
+        <FormError>{error ? errorText(error) : null}</FormError>
+        <Button
+          type="submit"
+          variant="primary"
+          className={s.submit}
+          busy={busy}
+          disabled={!username.trim() || !password}
+        >
+          {t('login.submit')}
+        </Button>
+      </form>
+    </AuthLayout>
+  );
+}
diff --git a/apps/web/src/pages/SettingsPage.tsx b/apps/web/src/pages/SettingsPage.tsx
new file mode 100644
index 0000000..388932f
--- /dev/null
+++ b/apps/web/src/pages/SettingsPage.tsx
@@ -0,0 +1,230 @@
+import type { components } from '@pipu/api-client';
+import { unwrap } from '@pipu/core';
+import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';
+import { useState, type FormEvent } from 'react';
+import { useTranslation } from 'react-i18next';
+
+import { useSession, useUser } from '../app/session';
+import { useErrorText, useFieldError } from '../shared/lib/errors';
+import { formatDateTime } from '../shared/lib/format';
+import { Button, Field, FormError, Segmented } from '../shared/ui/ui';
+import { LanguageSwitch } from '../widgets/LanguageSwitch';
+import s from './page.module.css';
+
+type Theme = NonNullable<components['schemas']['UiPrefs']['theme']>;
+
+export function SettingsPage() {
+  const { t } = useTranslation();
+  return (
+    <div className={`${s.page} ${s.narrow}`}>
+      <div className={s.head}>
+        <h1>{t('settings.title')}</h1>
+      </div>
+      <ProfileSection />
+      <AppearanceSection />
+      <PasswordSection />
+      <SessionsSection />
+    </div>
+  );
+}
+
+function ProfileSection() {
+  const { t } = useTranslation();
+  const session = useSession();
+  const user = useUser();
+  const errorText = useErrorText();
+  const [name, setName] = useState(user.display_name ?? '');
+  const save = useMutation({
+    mutationFn: async () => unwrap(await session.client.PATCH('/api/v1/me', { body: { display_name: name.trim() } })),
+    onSuccess: (u) => session.setUser(u),
+  });
+  return (
+    <section className={s.section}>
+      <h2>{t('settings.account')}</h2>
+      <form
+        onSubmit={(e) => {
+          e.preventDefault();
+          save.mutate();
+        }}
+      >
+        <div className={s.row}>
+          <Field
+            label={t('settings.display_name')}
+            value={name}
+            onChange={(v) => {
+              setName(v);
+              save.reset();
+            }}
+            maxLength={64}
+            hint={`@${user.username}`}
+          />
+          <Button type="submit" busy={save.isPending} disabled={name.trim() === (user.display_name ?? '')}>
+            {t('settings.save')}
+          </Button>
+        </div>
+        {save.isSuccess && <span className={s.ok}>{t('settings.saved')}</span>}
+        <FormError>{save.error ? errorText(save.error) : null}</FormError>
+      </form>
+    </section>
+  );
+}
+
+function AppearanceSection() {
+  const { t } = useTranslation();
+  const session = useSession();
+  const user = useUser();
+  const theme: Theme = user.ui_prefs.theme ?? 'dark';
+  const setTheme = async (value: Theme) => {
+    // Оптимистично: тема применяется сразу, сервер подтверждает.
+    session.setUser({ ...user, ui_prefs: { ...user.ui_prefs, theme: value } });
+    try {
+      session.setUser(unwrap(await session.client.PATCH('/api/v1/me', { body: { ui_prefs: { theme: value } } })));
+    } catch {
+      session.setUser(user);
+    }
+  };
+  return (
+    <section className={s.section}>
+      <h2>{t('settings.appearance')}</h2>
+      <div className={s.settingRow}>
+        <span>{t('settings.theme')}</span>
+        <Segmented<Theme>
+          label={t('settings.theme')}
+          value={theme}
+          onChange={(v) => void setTheme(v)}
+          options={[
+            { value: 'dark', label: t('settings.theme_dark') },
+            { value: 'light', label: t('settings.theme_light') },
+            { value: 'system', label: t('settings.theme_system') },
+          ]}
+        />
+      </div>
+      <div className={s.settingRow}>
+        <span>{t('language.label')}</span>
+        <LanguageSwitch />
+      </div>
+    </section>
+  );
+}
+
+function PasswordSection() {
+  const { t } = useTranslation(['common', 'auth']);
+  const session = useSession();
+  const user = useUser();
+  const queryClient = useQueryClient();
+  const errorText = useErrorText();
+  const fieldError = useFieldError();
+  const [current, setCurrent] = useState('');
+  const [next, setNext] = useState('');
+  const [repeat, setRepeat] = useState('');
+  const mismatch = repeat !== '' && repeat !== next;
+
+  const change = useMutation({
+    mutationFn: async () =>
+      unwrap(
+        await session.client.POST('/api/v1/me/password', { body: { current_password: current, new_password: next } }),
+      ),
+    onSuccess: async (tokens) => {
+      await session.apply(tokens);
+      setCurrent('');
+      setNext('');
+      setRepeat('');
+      await queryClient.invalidateQueries({ queryKey: ['sessions'] });
+    },
+  });
+  const err = change.error;
+  const currentError = fieldError(err, 'current_password');
+  const nextError = fieldError(err, 'new_password');
+
+  const submit = (e: FormEvent) => {
+    e.preventDefault();
+    if (!mismatch) change.mutate();
+  };
+
+  return (
+    <section className={s.section}>
+      <h2>{t('settings.password')}</h2>
+      <form onSubmit={submit} noValidate>
+        <Field
+          label={t('settings.current_password')}
+          type="password"
+          value={current}
+          onChange={setCurrent}
+          autoComplete="current-password"
+          error={currentError}
+        />
+        <Field
+          label={t('settings.new_password')}
+          type="password"
+          value={next}
+          onChange={setNext}
+          autoComplete="new-password"
+          hint={t('auth:setup.min_length', { min: user.role === 'user' ? 8 : 12 })}
+          error={nextError}
+        />
+        <Field
+          label={t('settings.repeat_password')}
+          type="password"
+          value={repeat}
+          onChange={setRepeat}
+          autoComplete="new-password"
+          error={mismatch ? t('form.passwords_mismatch') : undefined}
+        />
+        {change.isSuccess && <span className={s.ok}>{t('settings.password_changed')}</span>}
+        <FormError>{err && !currentError && !nextError ? errorText(err) : null}</FormError>
+        <div className={s.actions}>
+          <Button type="submit" variant="primary" busy={change.isPending} disabled={!current || !next || next !== repeat}>
+            {t('settings.change_password')}
+          </Button>
+        </div>
+      </form>
+    </section>
+  );
+}
+
+function SessionsSection() {
+  const { t, i18n } = useTranslation();
+  const session = useSession();
+  const queryClient = useQueryClient();
+  const errorText = useErrorText();
+  const sessions = useQuery({
+    queryKey: ['sessions'],
+    queryFn: async () => unwrap(await session.client.GET('/api/v1/me/sessions')).items,
+  });
+  const revoke = useMutation({
+    mutationFn: async (id: string) =>
+      unwrap(await session.client.DELETE('/api/v1/me/sessions/{id}', { params: { path: { id } } })),
+    onSuccess: () => queryClient.invalidateQueries({ queryKey: ['sessions'] }),
+  });
+
+  return (
+    <section className={s.section}>
+      <h2>{t('settings.sessions')}</h2>
+      <div className={s.sessions}>
+        {sessions.data?.map((ss) => (
+          <div key={ss.id} className={s.session}>
+            <div>
+              <div>{ss.device_name ?? ss.client_type}</div>
+              <div className={s.sessionMeta}>
+                {ss.current
+                  ? t('settings.session_current')
+                  : t('settings.session_last_used', { date: formatDateTime(ss.last_used_at, i18n.language) })}
+              </div>
+            </div>
+            {!ss.current && (
+              <Button variant="ghost" busy={revoke.isPending && revoke.variables === ss.id} onClick={() => revoke.mutate(ss.id)}>
+                {t('settings.session_end')}
+              </Button>
+            )}
+          </div>
+        ))}
+      </div>
+      <FormError>{sessions.error || revoke.error ? errorText(sessions.error ?? revoke.error) : null}</FormError>
+      <div>
+        <Button variant="danger" onClick={() => void session.logout(true)}>
+          {t('settings.logout_all')}
+        </Button>
+      </div>
+    </section>
+  );
+}
diff --git a/apps/web/src/pages/SetupPage.tsx b/apps/web/src/pages/SetupPage.tsx
new file mode 100644
index 0000000..84cc1e3
--- /dev/null
+++ b/apps/web/src/pages/SetupPage.tsx
@@ -0,0 +1,108 @@
+import { unwrap } from '@pipu/core';
+import { useState, type FormEvent } from 'react';
+import { useTranslation } from 'react-i18next';
+
+import { useAuthState, useSession, useUser } from '../app/session';
+import { useErrorText, useFieldError } from '../shared/lib/errors';
+import { lockResetIcon, shieldIcon } from '../shared/ui/icons';
+import { Button, Field, FormError, Icon } from '../shared/ui/ui';
+import { AuthLayout } from './AuthLayout';
+import s from './auth.module.css';
+
+/** Обязательный шаг после входа: новые логин и пароль админа (admin) или замена временного пароля (password). */
+export function SetupPage({ variant }: { variant: 'admin' | 'password' }) {
+  return useAuthState().status === 'signed_in' ? <SetupForm variant={variant} /> : null;
+}
+
+function SetupForm({ variant }: { variant: 'admin' | 'password' }) {
+  const { t } = useTranslation(['auth', 'common']);
+  const session = useSession();
+  const user = useUser();
+  const errorText = useErrorText();
+  const fieldError = useFieldError();
+  const admin = variant === 'admin';
+  const minLength = user.role === 'user' ? 8 : 12;
+
+  const [username, setUsername] = useState(user.username);
+  const [password, setPassword] = useState('');
+  const [repeat, setRepeat] = useState('');
+  const [busy, setBusy] = useState(false);
+  const [error, setError] = useState<unknown>(null);
+  const mismatch = repeat !== '' && repeat !== password;
+
+  const submit = async (e: FormEvent) => {
+    e.preventDefault();
+    if (mismatch) return;
+    setBusy(true);
+    setError(null);
+    try {
+      const res = admin
+        ? await session.client.POST('/api/v1/me/bootstrap-credentials', {
+            body: { new_username: username.trim(), new_password: password },
+          })
+        : await session.client.POST('/api/v1/me/password', { body: { new_password: password } });
+      await session.apply(unwrap(res));
+    } catch (err) {
+      setError(err);
+      setBusy(false);
+    }
+  };
+
+  const usernameError = fieldError(error, 'new_username');
+  const passwordError = fieldError(error, 'new_password');
+  const generalError = error && !usernameError && !passwordError ? errorText(error) : null;
+
+  return (
+    <AuthLayout>
+      <span className={s.badge}>
+        <Icon src={admin ? shieldIcon : lockResetIcon} size={16} />
+        {t(admin ? 'setup.admin_badge' : 'setup.password_badge')}
+      </span>
+      <h1>{t(admin ? 'setup.admin_title' : 'setup.password_title')}</h1>
+      <p className={s.lead}>{t(admin ? 'setup.admin_text' : 'setup.password_text')}</p>
+      <form onSubmit={(e) => void submit(e)} noValidate>
+        {admin && (
+          <Field
+            label={t('setup.new_username')}
+            value={username}
+            onChange={setUsername}
+            autoComplete="username"
+            autoCapitalize="none"
+            spellCheck={false}
+            error={usernameError}
+          />
+        )}
+        <Field
+          label={t('setup.new_password')}
+          type="password"
+          value={password}
+          onChange={setPassword}
+          autoComplete="new-password"
+          hint={t('setup.min_length', { min: minLength })}
+          error={passwordError}
+        />
+        <Field
+          label={t('setup.repeat_password')}
+          type="password"
+          value={repeat}
+          onChange={setRepeat}
+          autoComplete="new-password"
+          error={mismatch ? t('common:form.passwords_mismatch') : undefined}
+        />
+        <FormError>{generalError}</FormError>
+        <Button
+          type="submit"
+          variant="primary"
+          className={s.submit}
+          busy={busy}
+          disabled={!password || password !== repeat || (admin && !username.trim())}
+        >
+          {t('setup.submit')}
+        </Button>
+        <Button variant="ghost" className={s.link} onClick={() => void session.logout()}>
+          {t('setup.logout')}
+        </Button>
+      </form>
+    </AuthLayout>
+  );
+}
diff --git a/apps/web/src/pages/admin/AuditPage.tsx b/apps/web/src/pages/admin/AuditPage.tsx
new file mode 100644
index 0000000..2ada437
--- /dev/null
+++ b/apps/web/src/pages/admin/AuditPage.tsx
@@ -0,0 +1,79 @@
+import type { components } from '@pipu/api-client';
+import { unwrap } from '@pipu/core';
+import { useInfiniteQuery } from '@tanstack/react-query';
+import { useTranslation } from 'react-i18next';
+
+import { useSession } from '../../app/session';
+import { useErrorText } from '../../shared/lib/errors';
+import { formatDateTime } from '../../shared/lib/format';
+import { Button, FormError } from '../../shared/ui/ui';
+import s from '../page.module.css';
+
+type Entry = components['schemas']['AuditEntry'];
+
+/** Краткое описание полезной нагрузки записи: «user → moderator», «anna (user)». */
+function details(e: Entry, roleName: (r: string) => string): string {
+  const p = e.payload ?? {};
+  if (e.action === 'user.role_change') return `${roleName(String(p.from))} → ${roleName(String(p.to))}`;
+  const parts = [p.username, p.role && roleName(String(p.role)), p.display_name].filter(
+    (v): v is string => typeof v === 'string' && v !== '',
+  );
+  return parts.join(' · ');
+}
+
+export function AuditPage() {
+  const { t, i18n } = useTranslation(['admin', 'common']);
+  const session = useSession();
+  const errorText = useErrorText();
+  const list = useInfiniteQuery({
+    queryKey: ['admin-audit'],
+    initialPageParam: undefined as string | undefined,
+    queryFn: async ({ pageParam }) =>
+      unwrap(await session.client.GET('/api/v1/admin/audit', { params: { query: { cursor: pageParam, limit: 50 } } })),
+    getNextPageParam: (page) => page.next_cursor ?? undefined,
+  });
+  const entries = list.data?.pages.flatMap((p) => p.items) ?? [];
+  const tr = t as unknown as (key: string, opts?: Record<string, unknown>) => string;
+  const roleName = (r: string) => tr(`common:roles.${r}`, { defaultValue: r });
+
+  return (
+    <div className={s.page}>
+      <div className={s.head}>
+        <div>
+          <h1>{t('audit.title')}</h1>
+          <p className={s.subtitle}>{t('audit.subtitle')}</p>
+        </div>
+      </div>
+      <FormError>{list.error ? errorText(list.error) : null}</FormError>
+      <div className={s.tableWrap}>
+        <table className={s.table}>
+          <thead>
+            <tr>
+              <th>{t('audit.col_when')}</th>
+              <th>{t('audit.col_who')}</th>
+              <th>{t('audit.col_action')}</th>
+              <th>{t('audit.col_details')}</th>
+            </tr>
+          </thead>
+          <tbody>
+            {entries.map((e) => (
+              <tr key={e.id}>
+                <td className={s.muted}>{formatDateTime(e.created_at, i18n.language)}</td>
+                <td>{e.actor ? `@${e.actor.username}` : <span className={s.muted}>{t('audit.system')}</span>}</td>
+                <td>{tr(`admin:audit.actions.${e.action}`, { defaultValue: e.action })}</td>
+                <td className={s.muted}>{details(e, roleName)}</td>
+              </tr>
+            ))}
+          </tbody>
+        </table>
+        {list.isSuccess && entries.length === 0 && <div className={s.empty}>{t('audit.empty')}</div>}
+        {list.isPending && <div className={s.empty}>{t('common:loading')}</div>}
+      </div>
+      {list.hasNextPage && (
+        <Button className={s.more} busy={list.isFetchingNextPage} onClick={() => void list.fetchNextPage()}>
+          {t('audit.more')}
+        </Button>
+      )}
+    </div>
+  );
+}
diff --git a/apps/web/src/pages/admin/UsersPage.tsx b/apps/web/src/pages/admin/UsersPage.tsx
new file mode 100644
index 0000000..a1ed773
--- /dev/null
+++ b/apps/web/src/pages/admin/UsersPage.tsx
@@ -0,0 +1,362 @@
+import type { components } from '@pipu/api-client';
+import { unwrap } from '@pipu/core';
+import { useInfiniteQuery, useMutation, useQueryClient } from '@tanstack/react-query';
+import { useEffect, useState, type FormEvent } from 'react';
+import { useTranslation } from 'react-i18next';
+
+import { useSession, useUser } from '../../app/session';
+import { useErrorText, useFieldError } from '../../shared/lib/errors';
+import { formatRelative } from '../../shared/lib/format';
+import { assignableRoles, canManageUser, type Role } from '../../shared/lib/policy';
+import { addIcon, checkIcon, copyIcon, lockResetIcon, moreIcon, searchIcon } from '../../shared/ui/icons';
+import { Avatar, Button, cx, Dialog, Field, FormError, Icon, Menu, type MenuItem } from '../../shared/ui/ui';
+import s from '../page.module.css';
+
+type AdminUser = components['schemas']['AdminUser'];
+
+const ROLES: Role[] = ['admin', 'moderator', 'user'];
+
+type Confirm = { kind: 'reset' | 'block' | 'delete'; user: AdminUser };
+
+function useDebounced<T>(value: T, ms: number): T {
+  const [v, setV] = useState(value);
+  useEffect(() => {
+    const id = setTimeout(() => setV(value), ms);
+    return () => clearTimeout(id);
+  }, [value, ms]);
+  return v;
+}
+
+function status(u: AdminUser): 'blocked' | 'must_change' | 'active' {
+  if (u.is_blocked) return 'blocked';
+  if (u.must_change_password || u.must_change_credentials) return 'must_change';
+  return 'active';
+}
+
+export function UsersPage() {
+  const { t, i18n } = useTranslation(['admin', 'common']);
+  const session = useSession();
+  const me = useUser();
+  const queryClient = useQueryClient();
+  const errorText = useErrorText();
+
+  const [q, setQ] = useState('');
+  const [role, setRole] = useState<Role | null>(null);
+  const query = useDebounced(q.trim(), 200);
+  const [creating, setCreating] = useState(false);
+  const [confirm, setConfirm] = useState<Confirm | null>(null);
+  const [secret, setSecret] = useState<{ username: string; password: string } | null>(null);
+  const [actionError, setActionError] = useState<unknown>(null);
+
+  const list = useInfiniteQuery({
+    queryKey: ['admin-users', query, role],
+    initialPageParam: undefined as string | undefined,
+    queryFn: async ({ pageParam }) =>
+      unwrap(
+        await session.client.GET('/api/v1/admin/users', {
+          params: { query: { q: query || undefined, role: role ?? undefined, cursor: pageParam, limit: 50 } },
+        }),
+      ),
+    getNextPageParam: (page) => page.next_cursor ?? undefined,
+  });
+  const users = list.data?.pages.flatMap((p) => p.items) ?? [];
+  const refresh = () => queryClient.invalidateQueries({ queryKey: ['admin-users'] });
+
+  const patch = useMutation({
+    mutationFn: async ({ id, body }: { id: string; body: components['schemas']['UpdateUserRequest'] }) =>
+      unwrap(await session.client.PATCH('/api/v1/admin/users/{id}', { params: { path: { id } }, body })),
+    onSuccess: refresh,
+    onError: setActionError,
+  });
+  const reset = useMutation({
+    mutationFn: async (u: AdminUser) =>
+      unwrap(
+        await session.client.POST('/api/v1/admin/users/{id}/reset-password', { params: { path: { id: u.id } } }),
+      ),
+    onSuccess: (r, u) => {
+      setSecret({ username: u.username, password: r.temporary_password });
+      void refresh();
+    },
+    onError: setActionError,
+  });
+  const remove = useMutation({
+    mutationFn: async (u: AdminUser) =>
+      unwrap(await session.client.DELETE('/api/v1/admin/users/{id}', { params: { path: { id: u.id } } })),
+    onSuccess: refresh,
+    onError: setActionError,
+  });
+
+  const runConfirm = () => {
+    if (!confirm) return;
+    const { kind, user } = confirm;
+    setConfirm(null);
+    setActionError(null);
+    if (kind === 'reset') reset.mutate(user);
+    if (kind === 'block') patch.mutate({ id: user.id, body: { is_blocked: true } });
+    if (kind === 'delete') remove.mutate(user);
+  };
+
+  const actionsFor = (u: AdminUser): MenuItem[] => {
+    const items: MenuItem[] = [];
+    const can = (a: Parameters<typeof canManageUser>[2]) => canManageUser(me, u, a);
+    if (can('reset_password'))
+      items.push({ label: t('users.reset_password'), icon: lockResetIcon, onSelect: () => setConfirm({ kind: 'reset', user: u }) });
+    if (can('block'))
+      items.push(
+        u.is_blocked
+          ? { label: t('users.unblock'), onSelect: () => patch.mutate({ id: u.id, body: { is_blocked: false } }) }
+          : { label: t('users.block'), onSelect: () => setConfirm({ kind: 'block', user: u }) },
+      );
+    if (can('change_role'))
+      for (const r of ROLES.filter((r) => r !== u.role))
+        items.push({
+          label: t('users.make_role', { role: t(`common:roles.${r}`) }),
+          onSelect: () => patch.mutate({ id: u.id, body: { role: r } }),
+        });
+    if (can('delete'))
+      items.push({ label: t('users.delete'), danger: true, onSelect: () => setConfirm({ kind: 'delete', user: u }) });
+    return items;
+  };
+
+  return (
+    <div className={s.page}>
+      <div className={s.head}>
+        <div>
+          <h1>{t('users.title')}</h1>
+          <p className={s.subtitle}>{t('users.subtitle')}</p>
+        </div>
+        <Button variant="primary" icon={addIcon} onClick={() => setCreating(true)}>
+          {t('users.create')}
+        </Button>
+      </div>
+
+      <div className={s.toolbar}>
+        <label className={s.search}>
+          <Icon src={searchIcon} size={18} className={s.searchIcon} />
+          <input
+            type="search"
+            value={q}
+            onChange={(e) => setQ(e.target.value)}
+            placeholder={t('users.search')}
+            aria-label={t('users.search')}
+          />
+        </label>
+        <div className={s.chips} role="group" aria-label={t('users.col_role')}>
+          <button type="button" className={s.chip} aria-pressed={role === null} onClick={() => setRole(null)}>
+            {t('users.all')}
+          </button>
+          {ROLES.map((r) => (
+            <button key={r} type="button" className={s.chip} aria-pressed={role === r} onClick={() => setRole(r)}>
+              {t(`common:roles.${r}`)}
+            </button>
+          ))}
+        </div>
+      </div>
+
+      <FormError>{actionError || list.error ? errorText(actionError ?? list.error) : null}</FormError>
+
+      <div className={s.tableWrap}>
+        <table className={s.table}>
+          <thead>
+            <tr>
+              <th>{t('users.col_user')}</th>
+              <th>{t('users.col_role')}</th>
+              <th>{t('users.col_status')}</th>
+              <th>{t('users.col_last_login')}</th>
+              <th aria-hidden />
+            </tr>
+          </thead>
+          <tbody>
+            {users.map((u) => {
+              const items = actionsFor(u);
+              const st = status(u);
+              return (
+                <tr key={u.id}>
+                  <td>
+                    <div className={s.userCell}>
+                      <Avatar name={u.display_name ?? u.username} />
+                      <div>
+                        <div className={s.userName}>
+                          {u.display_name ?? u.username}
+                          {u.id === me.id && <span className={s.you}>({t('users.you')})</span>}
+                        </div>
+                        <div className={s.userLogin}>@{u.username}</div>
+                      </div>
+                    </div>
+                  </td>
+                  <td>
+                    <span className={cx(s.badge, s[`role_${u.role}`])}>{t(`common:roles.${u.role}`)}</span>
+                  </td>
+                  <td>
+                    <span className={cx(s.status, s[`status_${st}`])}>{t(`users.status_${st}`)}</span>
+                  </td>
+                  <td className={s.muted}>
+                    {u.last_login_at ? formatRelative(u.last_login_at, i18n.language) : t('users.never')}
+                  </td>
+                  <td>
+                    {items.length > 0 && (
+                      <Menu label={t('users.actions', { username: u.username })} trigger={<Icon src={moreIcon} />} items={items} />
+                    )}
+                  </td>
+                </tr>
+              );
+            })}
+          </tbody>
+        </table>
+        {list.isSuccess && users.length === 0 && <div className={s.empty}>{t('users.empty')}</div>}
+        {list.isPending && <div className={s.empty}>{t('common:loading')}</div>}
+      </div>
+      {list.hasNextPage && (
+        <Button className={s.more} busy={list.isFetchingNextPage} onClick={() => void list.fetchNextPage()}>
+          {t('users.more')}
+        </Button>
+      )}
+
+      {creating && (
+        <CreateUserDialog
+          actorRole={me.role}
+          onClose={() => setCreating(false)}
+          onCreated={(username, password) => {
+            setCreating(false);
+            setSecret({ username, password });
+            void refresh();
+          }}
+        />
+      )}
+
+      {confirm && (
+        <Dialog
+          title={t(`users.${confirm.kind === 'reset' ? 'reset_password' : confirm.kind}`)}
+          onClose={() => setConfirm(null)}
+          footer={
+            <>
+              <Button variant="ghost" onClick={() => setConfirm(null)}>
+                {t('common:form.cancel')}
+              </Button>
+              <Button variant={confirm.kind === 'reset' ? 'primary' : 'danger'} onClick={runConfirm}>
+                {t('users.confirm')}
+              </Button>
+            </>
+          }
+        >
+          <p className={s.note}>{t(`users.${confirm.kind}_confirm`, { username: confirm.user.username })}</p>
+        </Dialog>
+      )}
+
+      {secret && <TemporaryPasswordDialog {...secret} onClose={() => setSecret(null)} />}
+    </div>
+  );
+}
+
+function CreateUserDialog({
+  actorRole,
+  onClose,
+  onCreated,
+}: {
+  actorRole: Role;
+  onClose: () => void;
+  onCreated: (username: string, password: string) => void;
+}) {
+  const { t } = useTranslation(['admin', 'common']);
+  const session = useSession();
+  const errorText = useErrorText();
+  const fieldError = useFieldError();
+  const roles = assignableRoles(actorRole);
+  const [username, setUsername] = useState('');
+  const [name, setName] = useState('');
+  const [role, setRole] = useState<Role>('user');
+
+  const create = useMutation({
+    mutationFn: async () =>
+      unwrap(
+        await session.client.POST('/api/v1/admin/users', {
+          body: { username: username.trim(), display_name: name.trim() || undefined, role },
+        }),
+      ),
+    onSuccess: (r) => onCreated(r.user.username, r.temporary_password),
+  });
+  const usernameError = fieldError(create.error, 'username');
+  const nameError = fieldError(create.error, 'display_name');
+
+  const submit = (e: FormEvent) => {
+    e.preventDefault();
+    create.mutate();
+  };
+
+  return (
+    <Dialog
+      title={t('create.title')}
+      onClose={onClose}
+      footer={
+        <>
+          <Button variant="ghost" onClick={onClose}>
+            {t('common:form.cancel')}
+          </Button>
+          <Button type="submit" form="create-user" variant="primary" busy={create.isPending} disabled={!username.trim()}>
+            {t('create.submit')}
+          </Button>
+        </>
+      }
+    >
+      <form id="create-user" onSubmit={submit} noValidate className={s.sessions}>
+        <Field
+          label={t('create.username')}
+          value={username}
+          onChange={setUsername}
+          autoCapitalize="none"
+          spellCheck={false}
+          hint={t('create.username_hint')}
+          error={usernameError}
+          mono
+        />
+        <Field label={t('create.display_name')} value={name} onChange={setName} maxLength={64} error={nameError} />
+        {roles.length > 1 && (
+          <label className={s.sessions}>
+            <span className={s.subtitle}>{t('create.role')}</span>
+            <select className={s.select} value={role} onChange={(e) => setRole(e.target.value as Role)}>
+              {roles.map((r) => (
+                <option key={r} value={r}>
+                  {t(`common:roles.${r}`)}
+                </option>
+              ))}
+            </select>
+          </label>
+        )}
+        <p className={s.note}>{t('create.password_note')}</p>
+        <FormError>{create.error && !usernameError && !nameError ? errorText(create.error) : null}</FormError>
+      </form>
+    </Dialog>
+  );
+}
+
+function TemporaryPasswordDialog({ username, password, onClose }: { username: string; password: string; onClose: () => void }) {
+  const { t } = useTranslation(['admin', 'common']);
+  const [copied, setCopied] = useState(false);
+  const copy = async () => {
+    try {
+      await navigator.clipboard.writeText(password);
+      setCopied(true);
+    } catch {
+      // Буфер обмена недоступен (http, права) — пароль виден на экране.
+    }
+  };
+  return (
+    <Dialog
+      title={t('temp_password.title')}
+      onClose={onClose}
+      footer={
+        <Button variant="primary" onClick={onClose}>
+          {t('temp_password.done')}
+        </Button>
+      }
+    >
+      <p className={s.note}>{t('temp_password.text', { username })}</p>
+      <div className={s.secret}>
+        <span data-testid="temporary-password">{password}</span>
+        <Button variant="ghost" icon={copied ? checkIcon : copyIcon} onClick={() => void copy()}>
+          {copied ? t('common:form.copied') : t('common:form.copy')}
+        </Button>
+      </div>
+    </Dialog>
+  );
+}
diff --git a/apps/web/src/pages/auth.module.css b/apps/web/src/pages/auth.module.css
new file mode 100644
index 0000000..273dc93
--- /dev/null
+++ b/apps/web/src/pages/auth.module.css
@@ -0,0 +1,166 @@
+.screen {
+  position: relative;
+  min-height: 100%;
+  display: flex;
+  flex-direction: column;
+  overflow: hidden;
+}
+
+.backdrop {
+  position: absolute;
+  inset: 0;
+  z-index: 0;
+  pointer-events: none;
+  opacity: var(--amb-op);
+}
+
+.backdrop span {
+  position: absolute;
+  border-radius: 50%;
+  filter: blur(30px);
+}
+
+.blob1 {
+  width: 62vmax;
+  height: 62vmax;
+  left: -18vmax;
+  top: -24vmax;
+  background: radial-gradient(circle, rgba(47, 128, 255, 0.34), transparent 65%);
+  animation: drift1 16s ease-in-out infinite alternate;
+}
+
+.blob2 {
+  width: 55vmax;
+  height: 55vmax;
+  right: -20vmax;
+  bottom: -26vmax;
+  background: radial-gradient(circle, rgba(124, 92, 255, 0.3), transparent 65%);
+  animation: drift2 21s ease-in-out infinite alternate;
+}
+
+.blob3 {
+  width: 40vmax;
+  height: 40vmax;
+  left: 40%;
+  top: 30%;
+  background: radial-gradient(circle, rgba(53, 211, 255, 0.16), transparent 65%);
+  animation: drift1 26s ease-in-out infinite alternate-reverse;
+}
+
+@keyframes drift1 {
+  to {
+    transform: translate(6vmax, 4vmax);
+  }
+}
+
+@keyframes drift2 {
+  to {
+    transform: translate(-5vmax, -6vmax);
+  }
+}
+
+@media (prefers-reduced-motion: reduce) {
+  .backdrop span {
+    animation: none;
+  }
+}
+
+.top {
+  position: relative;
+  z-index: 1;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  height: 60px;
+  padding: 0 20px;
+}
+
+.center {
+  position: relative;
+  z-index: 1;
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  gap: 16px;
+  padding: 24px 16px 48px;
+}
+
+.card {
+  width: 420px;
+  max-width: 100%;
+  display: flex;
+  flex-direction: column;
+  gap: 16px;
+  padding: 36px;
+  border-radius: var(--radius-xl);
+  background: var(--glass);
+  backdrop-filter: blur(28px) saturate(1.3);
+  border: 1px solid var(--line2);
+  box-shadow: var(--shadow);
+  animation: pipuIn 0.2s ease-out;
+}
+
+@media (max-width: 480px) {
+  .card {
+    padding: 28px 20px;
+  }
+}
+
+.card h1 {
+  margin: 0;
+  font-family: var(--font-display);
+  font-size: 26px;
+  font-weight: 600;
+  letter-spacing: -0.01em;
+}
+
+.card form {
+  display: flex;
+  flex-direction: column;
+  gap: 14px;
+}
+
+.lead {
+  margin: -6px 0 4px;
+  color: var(--text2);
+  line-height: 1.5;
+}
+
+.badge {
+  align-self: flex-start;
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+  height: 28px;
+  padding: 0 12px;
+  border-radius: var(--radius-pill);
+  background: var(--violet-soft);
+  color: var(--violet);
+  font-size: 12px;
+  font-weight: 700;
+}
+
+.submit {
+  height: 48px;
+  margin-top: 4px;
+}
+
+.hint {
+  padding: 10px 12px;
+  border-radius: 10px;
+  background: var(--accent-soft);
+  color: var(--text2);
+  font-size: 13px;
+  line-height: 1.45;
+}
+
+.footer {
+  font-size: 12px;
+  color: var(--text3);
+}
+
+.link {
+  align-self: center;
+}
diff --git a/apps/web/src/pages/home.module.css b/apps/web/src/pages/home.module.css
new file mode 100644
index 0000000..7a64bfd
--- /dev/null
+++ b/apps/web/src/pages/home.module.css
@@ -0,0 +1,63 @@
+.home {
+  min-height: 100%;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  gap: 24px;
+  text-align: center;
+}
+
+.greeting {
+  margin: 0;
+  font-family: var(--font-display);
+  font-size: 24px;
+  font-weight: 600;
+  letter-spacing: -0.01em;
+}
+
+.orb {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  gap: 6px;
+  width: 300px;
+  height: 300px;
+  max-width: 70vw;
+  max-height: 70vw;
+  border-radius: 50%;
+  color: #fff;
+  background:
+    radial-gradient(circle at 35% 30%, rgba(156, 198, 255, 0.55), transparent 45%),
+    radial-gradient(circle at 65% 70%, var(--wave-color3), transparent 55%),
+    radial-gradient(circle at 50% 50%, var(--wave-color2), var(--wave-color1) 70%);
+  box-shadow: 0 0 80px rgba(47, 128, 255, 0.35);
+  opacity: 0.85;
+  animation: breathe 6s ease-in-out infinite;
+}
+
+.orbLabel {
+  font-family: var(--font-display);
+  font-size: 18px;
+  font-weight: 600;
+}
+
+@keyframes breathe {
+  50% {
+    transform: scale(1.03);
+  }
+}
+
+@media (prefers-reduced-motion: reduce) {
+  .orb {
+    animation: none;
+  }
+}
+
+.soon {
+  max-width: 420px;
+  margin: 0;
+  color: var(--text2);
+  line-height: 1.5;
+}
diff --git a/apps/web/src/pages/page.module.css b/apps/web/src/pages/page.module.css
new file mode 100644
index 0000000..24bcbed
--- /dev/null
+++ b/apps/web/src/pages/page.module.css
@@ -0,0 +1,343 @@
+.page {
+  max-width: 1100px;
+  margin: 0 auto;
+  display: flex;
+  flex-direction: column;
+  gap: 24px;
+}
+
+.narrow {
+  max-width: 720px;
+}
+
+.head {
+  display: flex;
+  align-items: flex-end;
+  justify-content: space-between;
+  gap: 16px;
+  flex-wrap: wrap;
+}
+
+.head h1 {
+  margin: 0;
+  font-family: var(--font-display);
+  font-size: 28px;
+  font-weight: 600;
+  letter-spacing: -0.01em;
+}
+
+.subtitle {
+  margin: 6px 0 0;
+  color: var(--text2);
+}
+
+.section {
+  display: flex;
+  flex-direction: column;
+  gap: 16px;
+  padding: 24px;
+  border-radius: var(--radius-lg);
+  background: var(--surface-a);
+  border: 1px solid var(--line);
+}
+
+.section h2 {
+  margin: 0;
+  font-size: 17px;
+  font-weight: 600;
+}
+
+.section form {
+  display: flex;
+  flex-direction: column;
+  gap: 14px;
+}
+
+.row {
+  display: flex;
+  align-items: flex-end;
+  gap: 12px;
+  flex-wrap: wrap;
+}
+
+.row > :first-child {
+  flex: 1;
+  min-width: 220px;
+}
+
+.settingRow {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 16px;
+  flex-wrap: wrap;
+}
+
+.ok {
+  color: var(--ok);
+  font-size: 13px;
+  font-weight: 500;
+}
+
+.actions {
+  display: flex;
+  gap: 10px;
+  justify-content: flex-end;
+}
+
+.toolbar {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  flex-wrap: wrap;
+}
+
+.search {
+  position: relative;
+  flex: 1;
+  min-width: 220px;
+  max-width: 360px;
+}
+
+.search input {
+  width: 100%;
+  height: 40px;
+  padding: 0 12px 0 38px;
+  border-radius: 10px;
+  border: 1px solid var(--line);
+  background: var(--surface2);
+  color: var(--text);
+  font: inherit;
+  outline: none;
+}
+
+.search input:focus {
+  border-color: var(--accent);
+  box-shadow: 0 0 0 3px var(--accent-soft);
+}
+
+.searchIcon {
+  position: absolute;
+  left: 12px;
+  top: 50%;
+  transform: translateY(-50%);
+  color: var(--text3);
+}
+
+.chips {
+  display: flex;
+  gap: 6px;
+  flex-wrap: wrap;
+}
+
+.chip {
+  height: 32px;
+  padding: 0 14px;
+  border-radius: var(--radius-pill);
+  border: 1px solid var(--line);
+  background: var(--surface2);
+  font-size: 13px;
+  font-weight: 600;
+  color: var(--text2);
+}
+
+.chip[aria-pressed='true'] {
+  background: var(--accent-soft);
+  border-color: var(--accent);
+  color: var(--text);
+}
+
+.tableWrap {
+  border-radius: var(--radius-lg);
+  border: 1px solid var(--line);
+  background: var(--surface-a);
+}
+
+/* Горизонтальная прокрутка только там, где таблица не помещается: она обрезала бы меню действий. */
+@media (max-width: 900px) {
+  .tableWrap {
+    overflow-x: auto;
+  }
+}
+
+.table {
+  width: 100%;
+  border-collapse: collapse;
+  font-size: 14px;
+}
+
+.table th {
+  height: 44px;
+  padding: 0 16px;
+  text-align: left;
+  font-size: 11px;
+  font-weight: 700;
+  letter-spacing: 0.08em;
+  text-transform: uppercase;
+  color: var(--text3);
+  border-bottom: 1px solid var(--line);
+  white-space: nowrap;
+}
+
+.table td {
+  height: 60px;
+  padding: 0 16px;
+  border-bottom: 1px solid var(--line);
+  vertical-align: middle;
+}
+
+.table tr:last-child td {
+  border-bottom: 0;
+}
+
+.table tbody tr:hover {
+  background: var(--hover);
+}
+
+.userCell {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  min-width: 200px;
+}
+
+.userName {
+  font-weight: 600;
+}
+
+.userLogin {
+  font-size: 12px;
+  color: var(--text3);
+}
+
+.you {
+  margin-left: 6px;
+  font-size: 11px;
+  font-weight: 600;
+  color: var(--text3);
+}
+
+.badge {
+  display: inline-flex;
+  align-items: center;
+  height: 24px;
+  padding: 0 10px;
+  border-radius: var(--radius-pill);
+  font-size: 12px;
+  font-weight: 600;
+  white-space: nowrap;
+}
+
+.role_admin {
+  background: var(--violet-soft);
+  color: var(--violet);
+}
+
+.role_moderator {
+  background: var(--accent-soft);
+  color: var(--accent2);
+}
+
+.role_user {
+  background: var(--hover);
+  color: var(--text2);
+}
+
+.status {
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+  white-space: nowrap;
+}
+
+.status::before {
+  content: '';
+  width: 7px;
+  height: 7px;
+  border-radius: 50%;
+  background: currentColor;
+}
+
+.status_active {
+  color: var(--ok);
+}
+
+.status_blocked {
+  color: var(--danger);
+}
+
+.status_must_change {
+  color: var(--warn);
+}
+
+.muted {
+  color: var(--text3);
+  white-space: nowrap;
+}
+
+.empty {
+  padding: 40px 16px;
+  text-align: center;
+  color: var(--text3);
+}
+
+.more {
+  align-self: center;
+}
+
+.mono {
+  font-family: var(--font-mono);
+}
+
+.secret {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+  padding: 14px 16px;
+  border-radius: var(--radius-md);
+  background: var(--surface2);
+  border: 1px dashed var(--line2);
+  font-family: var(--font-mono);
+  font-size: 18px;
+  letter-spacing: 0.04em;
+  word-break: break-all;
+}
+
+.select {
+  height: 48px;
+  padding: 0 12px;
+  border-radius: var(--radius-md);
+  border: 1px solid var(--line2);
+  background: var(--surface2);
+  color: var(--text);
+  font: inherit;
+}
+
+.note {
+  margin: 0;
+  font-size: 13px;
+  color: var(--text2);
+  line-height: 1.5;
+}
+
+.sessions {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+}
+
+.session {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+  padding: 12px 14px;
+  border-radius: var(--radius-md);
+  background: var(--surface2);
+}
+
+.sessionMeta {
+  font-size: 12px;
+  color: var(--text3);
+}
diff --git a/apps/web/src/shared/lib/errors.ts b/apps/web/src/shared/lib/errors.ts
new file mode 100644
index 0000000..65f23a1
--- /dev/null
+++ b/apps/web/src/shared/lib/errors.ts
@@ -0,0 +1,25 @@
+import { ApiError } from '@pipu/core';
+import { useTranslation } from 'react-i18next';
+
+type Translate = (key: string, options?: Record<string, unknown>) => string;
+
+/** Текст ошибки для пользователя: перевод `errors:<code>` с параметрами, иначе общий текст. */
+export function useErrorText(): (err: unknown) => string {
+  const { t, i18n } = useTranslation();
+  const tr = t as unknown as Translate;
+  return (err) => {
+    const code = err instanceof ApiError ? err.code : 'common.internal';
+    const params = err instanceof ApiError ? err.params : {};
+    const key = `errors:${code}`;
+    return i18n.exists(key) ? tr(key, params) : tr('errors:common.internal');
+  };
+}
+
+/** Ошибка конкретного поля (если сервер её указал) — для подписи под полем. */
+export function useFieldError(): (err: unknown, field: string) => string | undefined {
+  const text = useErrorText();
+  return (err, field) => {
+    if (!(err instanceof ApiError)) return undefined;
+    return err.fieldCode(field) ? text(err) : undefined;
+  };
+}
diff --git a/apps/web/src/shared/lib/format.ts b/apps/web/src/shared/lib/format.ts
new file mode 100644
index 0000000..ca89326
--- /dev/null
+++ b/apps/web/src/shared/lib/format.ts
@@ -0,0 +1,23 @@
+/** Дата и время в локали интерфейса: «20 окт. 2026 г., 14:05». */
+export function formatDateTime(iso: string, locale: string): string {
+  return new Intl.DateTimeFormat(locale, { dateStyle: 'medium', timeStyle: 'short' }).format(new Date(iso));
+}
+
+const UNITS: [Intl.RelativeTimeFormatUnit, number][] = [
+  ['year', 365 * 24 * 3600],
+  ['month', 30 * 24 * 3600],
+  ['week', 7 * 24 * 3600],
+  ['day', 24 * 3600],
+  ['hour', 3600],
+  ['minute', 60],
+];
+
+/** Относительное время: «12 минут назад», «вчера», «сейчас». */
+export function formatRelative(iso: string, locale: string, now: Date = new Date()): string {
+  const diff = (new Date(iso).getTime() - now.getTime()) / 1000;
+  const rtf = new Intl.RelativeTimeFormat(locale, { numeric: 'auto' });
+  for (const [unit, sec] of UNITS) {
+    if (Math.abs(diff) >= sec) return rtf.format(Math.round(diff / sec), unit);
+  }
+  return rtf.format(0, 'minute');
+}
diff --git a/apps/web/src/shared/lib/policy.ts b/apps/web/src/shared/lib/policy.ts
new file mode 100644
index 0000000..42083d4
--- /dev/null
+++ b/apps/web/src/shared/lib/policy.ts
@@ -0,0 +1,23 @@
+import type { components } from '@pipu/api-client';
+
+export type Role = components['schemas']['Role'];
+export type UserAction = 'reset_password' | 'block' | 'change_role' | 'delete';
+
+/**
+ * Копия матрицы прав (docs/auth-and-roles.md, services/api/internal/auth/policy.go) — только для UI:
+ * какие действия показывать. Решает всё равно сервер.
+ */
+export function canManageUser(actor: { id: string; role: Role }, target: { id: string; role: Role }, action: UserAction) {
+  const self = actor.id === target.id;
+  if (self && action !== 'reset_password') return false;
+  if (actor.role === 'admin') return true;
+  if (actor.role === 'moderator') return (action === 'reset_password' || action === 'block') && target.role === 'user';
+  return false;
+}
+
+/** Роли, которые actor может выдать при создании. */
+export function assignableRoles(actor: Role): Role[] {
+  if (actor === 'admin') return ['user', 'moderator', 'admin'];
+  if (actor === 'moderator') return ['user'];
+  return [];
+}
diff --git a/apps/web/src/shared/ui/icons.ts b/apps/web/src/shared/ui/icons.ts
new file mode 100644
index 0000000..ed24c25
--- /dev/null
+++ b/apps/web/src/shared/ui/icons.ts
@@ -0,0 +1,21 @@
+// Иконки Material Symbols Rounded (Apache 2.0). Импортируются по одной — в сборку попадают только используемые.
+export { default as addIcon } from '@material-symbols/svg-400/rounded/add.svg';
+export { default as checkIcon } from '@material-symbols/svg-400/rounded/check.svg';
+export { default as closeIcon } from '@material-symbols/svg-400/rounded/close.svg';
+export { default as copyIcon } from '@material-symbols/svg-400/rounded/content_copy.svg';
+export { default as groupIcon } from '@material-symbols/svg-400/rounded/group.svg';
+export { default as groupFillIcon } from '@material-symbols/svg-400/rounded/group-fill.svg';
+export { default as homeIcon } from '@material-symbols/svg-400/rounded/home.svg';
+export { default as homeFillIcon } from '@material-symbols/svg-400/rounded/home-fill.svg';
+export { default as lockResetIcon } from '@material-symbols/svg-400/rounded/lock_reset.svg';
+export { default as logoutIcon } from '@material-symbols/svg-400/rounded/logout.svg';
+export { default as moreIcon } from '@material-symbols/svg-400/rounded/more_horiz.svg';
+export { default as musicIcon } from '@material-symbols/svg-400/rounded/music_note.svg';
+export { default as playIcon } from '@material-symbols/svg-400/rounded/play_arrow-fill.svg';
+export { default as auditIcon } from '@material-symbols/svg-400/rounded/receipt_long.svg';
+export { default as auditFillIcon } from '@material-symbols/svg-400/rounded/receipt_long-fill.svg';
+export { default as searchIcon } from '@material-symbols/svg-400/rounded/search.svg';
+export { default as settingsIcon } from '@material-symbols/svg-400/rounded/settings.svg';
+export { default as shieldIcon } from '@material-symbols/svg-400/rounded/shield_person.svg';
+export { default as visibilityIcon } from '@material-symbols/svg-400/rounded/visibility.svg';
+export { default as visibilityOffIcon } from '@material-symbols/svg-400/rounded/visibility_off.svg';
diff --git a/apps/web/src/shared/ui/ui.module.css b/apps/web/src/shared/ui/ui.module.css
new file mode 100644
index 0000000..2e6b870
--- /dev/null
+++ b/apps/web/src/shared/ui/ui.module.css
@@ -0,0 +1,316 @@
+.icon {
+  display: inline-block;
+  flex: none;
+  background-color: currentColor;
+  mask-repeat: no-repeat;
+  mask-position: center;
+  mask-size: contain;
+  -webkit-mask-repeat: no-repeat;
+  -webkit-mask-position: center;
+  -webkit-mask-size: contain;
+}
+
+.logo {
+  display: inline-flex;
+  align-items: center;
+  gap: 10px;
+  font-family: var(--font-display);
+  font-weight: 600;
+  letter-spacing: -0.02em;
+  color: var(--text);
+}
+
+.logoDot {
+  border-radius: 50%;
+  background: radial-gradient(circle at 35% 30%, #9cc6ff, #2f80ff 55%, #3a1fa8);
+  box-shadow: 0 0 18px rgba(47, 128, 255, 0.55);
+}
+
+.button {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  gap: 8px;
+  height: 44px;
+  padding: 0 18px;
+  border-radius: var(--radius-md);
+  font-weight: 600;
+  font-size: 14px;
+  white-space: nowrap;
+  transition:
+    background 0.15s,
+    box-shadow 0.15s,
+    opacity 0.15s;
+}
+
+.button:disabled {
+  opacity: 0.55;
+  cursor: default;
+}
+
+.button[aria-busy='true'] {
+  cursor: progress;
+}
+
+.primary {
+  background: var(--accent);
+  color: #fff;
+  box-shadow: var(--glow);
+}
+
+.primary:hover:not(:disabled) {
+  background: var(--accent2);
+}
+
+.secondary {
+  background: var(--surface3);
+  color: var(--text);
+}
+
+.secondary:hover:not(:disabled),
+.ghost:hover:not(:disabled) {
+  background: var(--hover);
+}
+
+.ghost {
+  color: var(--text2);
+}
+
+.danger {
+  background: var(--danger-soft);
+  color: var(--danger);
+}
+
+.field {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+}
+
+.label {
+  font-size: 13px;
+  font-weight: 600;
+  color: var(--text2);
+}
+
+.inputWrap {
+  position: relative;
+  display: flex;
+}
+
+.input {
+  width: 100%;
+  height: 48px;
+  padding: 0 14px;
+  border-radius: var(--radius-md);
+  border: 1px solid var(--line2);
+  background: var(--surface2);
+  color: var(--text);
+  font: inherit;
+  outline: none;
+  transition:
+    border-color 0.15s,
+    box-shadow 0.15s;
+}
+
+.input:focus {
+  border-color: var(--accent);
+  box-shadow: 0 0 0 3px var(--accent-soft);
+}
+
+.inputWrap:has(.reveal) .input {
+  padding-right: 46px;
+}
+
+.mono {
+  font-family: var(--font-mono);
+}
+
+.invalid {
+  border-color: var(--danger);
+}
+
+.reveal {
+  position: absolute;
+  right: 6px;
+  top: 50%;
+  transform: translateY(-50%);
+  display: grid;
+  place-items: center;
+  width: 36px;
+  height: 36px;
+  border-radius: 8px;
+  color: var(--text3);
+}
+
+.reveal:hover {
+  color: var(--text);
+  background: var(--hover);
+}
+
+.hint {
+  font-size: 12px;
+  color: var(--text3);
+}
+
+.error {
+  font-size: 12px;
+  color: var(--danger);
+}
+
+.formError {
+  padding: 10px 12px;
+  border-radius: 10px;
+  background: var(--danger-soft);
+  color: var(--danger);
+  font-size: 13px;
+  font-weight: 500;
+}
+
+.segmented {
+  display: inline-flex;
+  gap: 2px;
+  padding: 3px;
+  border-radius: 10px;
+  background: var(--surface2);
+  border: 1px solid var(--line);
+}
+
+.segmented button {
+  height: 32px;
+  padding: 0 14px;
+  border-radius: 8px;
+  font-size: 13px;
+  font-weight: 600;
+  color: var(--text2);
+}
+
+.segmented button[aria-pressed='true'] {
+  background: var(--accent);
+  color: #fff;
+}
+
+.overlay {
+  position: fixed;
+  inset: 0;
+  z-index: 50;
+  display: grid;
+  place-items: center;
+  padding: 16px;
+  background: var(--overlay);
+  animation: pipuIn 0.2s ease-out;
+}
+
+.dialog {
+  width: 440px;
+  max-width: 100%;
+  max-height: calc(100vh - 32px);
+  overflow: auto;
+  border-radius: var(--radius-xl);
+  background: var(--glass);
+  backdrop-filter: blur(28px) saturate(1.3);
+  border: 1px solid var(--line2);
+  box-shadow: var(--shadow);
+  outline: none;
+}
+
+.dialogHead {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+  padding: 22px 24px 0;
+}
+
+.dialogHead h2 {
+  margin: 0;
+  font-family: var(--font-display);
+  font-size: 19px;
+  font-weight: 600;
+  letter-spacing: -0.01em;
+}
+
+.dialogBody {
+  display: flex;
+  flex-direction: column;
+  gap: 14px;
+  padding: 18px 24px;
+}
+
+.dialogFoot {
+  display: flex;
+  justify-content: flex-end;
+  gap: 10px;
+  padding: 0 24px 22px;
+}
+
+.iconButton {
+  display: grid;
+  place-items: center;
+  width: 36px;
+  height: 36px;
+  border-radius: 10px;
+  color: var(--text2);
+}
+
+.iconButton:hover,
+.iconButton[aria-expanded='true'] {
+  background: var(--hover);
+  color: var(--text);
+}
+
+.menuWrap {
+  position: relative;
+}
+
+.menu {
+  position: absolute;
+  right: 0;
+  top: calc(100% + 6px);
+  z-index: 40;
+  min-width: 220px;
+  padding: 6px;
+  border-radius: var(--radius-lg);
+  background: var(--elev);
+  border: 1px solid var(--line2);
+  box-shadow: var(--shadow);
+  animation: pipuIn 0.15s ease-out;
+}
+
+.menuStart {
+  left: 0;
+  right: auto;
+}
+
+.menuItem {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  width: 100%;
+  height: 38px;
+  padding: 0 10px;
+  border-radius: 8px;
+  font-size: 14px;
+  text-align: left;
+  color: var(--text);
+  outline: none;
+}
+
+.menuItem:hover,
+.menuItem:focus-visible {
+  background: var(--hover);
+}
+
+.menuDanger {
+  color: var(--danger);
+}
+
+.avatar {
+  display: inline-grid;
+  place-items: center;
+  flex: none;
+  border-radius: 50%;
+  background: linear-gradient(135deg, var(--accent), var(--violet));
+  color: #fff;
+  font-weight: 700;
+}
diff --git a/apps/web/src/shared/ui/ui.tsx b/apps/web/src/shared/ui/ui.tsx
new file mode 100644
index 0000000..fd7a1f2
--- /dev/null
+++ b/apps/web/src/shared/ui/ui.tsx
@@ -0,0 +1,282 @@
+import {
+  useEffect,
+  useId,
+  useRef,
+  useState,
+  type ButtonHTMLAttributes,
+  type InputHTMLAttributes,
+  type KeyboardEvent as ReactKeyboardEvent,
+  type ReactNode,
+} from 'react';
+import { useTranslation } from 'react-i18next';
+
+import { closeIcon, visibilityIcon, visibilityOffIcon } from './icons';
+import s from './ui.module.css';
+
+const cx = (...c: (string | false | null | undefined)[]) => c.filter(Boolean).join(' ');
+
+/** Иконка-маска: цвет берётся из currentColor. */
+export function Icon({ src, size = 20, className }: { src: string; size?: number; className?: string }) {
+  return (
+    <span
+      aria-hidden
+      className={cx(s.icon, className)}
+      style={{ width: size, height: size, maskImage: `url("${src}")`, WebkitMaskImage: `url("${src}")` }}
+    />
+  );
+}
+
+export function Logo({ size = 28 }: { size?: number }) {
+  const { t } = useTranslation();
+  return (
+    <span className={s.logo} style={{ fontSize: size * 0.68 }}>
+      <span className={s.logoDot} style={{ width: size, height: size }} aria-hidden />
+      {t('app.name')}
+    </span>
+  );
+}
+
+type ButtonProps = ButtonHTMLAttributes<HTMLButtonElement> & {
+  variant?: 'primary' | 'secondary' | 'ghost' | 'danger';
+  icon?: string;
+  busy?: boolean;
+};
+
+export function Button({ variant = 'secondary', icon, busy, className, children, disabled, ...rest }: ButtonProps) {
+  return (
+    <button
+      type="button"
+      {...rest}
+      disabled={disabled || busy}
+      aria-busy={busy || undefined}
+      className={cx(s.button, s[variant], className)}
+    >
+      {icon && <Icon src={icon} size={18} />}
+      {children}
+    </button>
+  );
+}
+
+type FieldProps = Omit<InputHTMLAttributes<HTMLInputElement>, 'onChange'> & {
+  label: string;
+  value: string;
+  onChange: (v: string) => void;
+  error?: string;
+  hint?: string;
+  mono?: boolean;
+};
+
+/** Поле ввода с подписью, ошибкой и (для паролей) кнопкой «показать». */
+export function Field({ label, value, onChange, error, hint, mono, type = 'text', className, ...rest }: FieldProps) {
+  const { t } = useTranslation();
+  const id = useId();
+  const [shown, setShown] = useState(false);
+  const isPassword = type === 'password';
+  const note = error ?? hint;
+  return (
+    <div className={cx(s.field, className)}>
+      <label htmlFor={id} className={s.label}>
+        {label}
+      </label>
+      <div className={s.inputWrap}>
+        <input
+          id={id}
+          type={isPassword && shown ? 'text' : type}
+          value={value}
+          onChange={(e) => onChange(e.target.value)}
+          aria-invalid={error ? true : undefined}
+          aria-describedby={note ? `${id}-note` : undefined}
+          className={cx(s.input, mono && s.mono, error && s.invalid)}
+          {...rest}
+        />
+        {isPassword && (
+          <button
+            type="button"
+            className={s.reveal}
+            onClick={() => setShown((v) => !v)}
+            aria-label={shown ? t('form.hide_password') : t('form.show_password')}
+          >
+            <Icon src={shown ? visibilityOffIcon : visibilityIcon} size={18} />
+          </button>
+        )}
+      </div>
+      {note && (
+        <div id={`${id}-note`} className={error ? s.error : s.hint} role={error ? 'alert' : undefined}>
+          {note}
+        </div>
+      )}
+    </div>
+  );
+}
+
+/** Сегментированный переключатель. */
+export function Segmented<T extends string>({
+  label,
+  value,
+  options,
+  onChange,
+}: {
+  label: string;
+  value: T;
+  options: { value: T; label: string }[];
+  onChange: (v: T) => void;
+}) {
+  return (
+    <div className={s.segmented} role="group" aria-label={label}>
+      {options.map((o) => (
+        <button key={o.value} type="button" aria-pressed={value === o.value} onClick={() => onChange(o.value)}>
+          {o.label}
+        </button>
+      ))}
+    </div>
+  );
+}
+
+export function FormError({ children }: { children?: ReactNode }) {
+  if (!children) return null;
+  return (
+    <div className={s.formError} role="alert">
+      {children}
+    </div>
+  );
+}
+
+/** Модальный диалог: стеклянная карточка поверх подложки, Esc и клик по подложке закрывают. */
+export function Dialog({
+  title,
+  onClose,
+  children,
+  footer,
+}: {
+  title: string;
+  onClose: () => void;
+  children: ReactNode;
+  footer?: ReactNode;
+}) {
+  const { t } = useTranslation();
+  const ref = useRef<HTMLDivElement>(null);
+  const titleId = useId();
+  useEffect(() => {
+    const prev = document.activeElement as HTMLElement | null;
+    const first = ref.current?.querySelector<HTMLElement>('input, select, button:not([data-close])');
+    (first ?? ref.current)?.focus();
+    const onKey = (e: KeyboardEvent) => {
+      if (e.key === 'Escape') onClose();
+    };
+    document.addEventListener('keydown', onKey);
+    return () => {
+      document.removeEventListener('keydown', onKey);
+      prev?.focus();
+    };
+  }, [onClose]);
+  return (
+    <div className={s.overlay} onMouseDown={(e) => e.target === e.currentTarget && onClose()}>
+      <div ref={ref} className={s.dialog} role="dialog" aria-modal="true" aria-labelledby={titleId} tabIndex={-1}>
+        <div className={s.dialogHead}>
+          <h2 id={titleId}>{title}</h2>
+          <button type="button" data-close className={s.iconButton} onClick={onClose} aria-label={t('form.close')}>
+            <Icon src={closeIcon} />
+          </button>
+        </div>
+        <div className={s.dialogBody}>{children}</div>
+        {footer && <div className={s.dialogFoot}>{footer}</div>}
+      </div>
+    </div>
+  );
+}
+
+export type MenuItem = { label: string; icon?: string; danger?: boolean; onSelect: () => void };
+
+/** Выпадающее меню: открывается кнопкой-триггером, закрывается кликом снаружи и Esc. */
+export function Menu({
+  label,
+  trigger,
+  items,
+  header,
+  align = 'end',
+  triggerClassName,
+}: {
+  label: string;
+  trigger: ReactNode;
+  items: MenuItem[];
+  header?: ReactNode;
+  align?: 'start' | 'end';
+  triggerClassName?: string;
+}) {
+  const [open, setOpen] = useState(false);
+  const ref = useRef<HTMLDivElement>(null);
+  useEffect(() => {
+    if (!open) return;
+    const onDown = (e: MouseEvent) => {
+      if (!ref.current?.contains(e.target as Node)) setOpen(false);
+    };
+    const onKey = (e: KeyboardEvent) => {
+      if (e.key === 'Escape') setOpen(false);
+    };
+    document.addEventListener('mousedown', onDown);
+    document.addEventListener('keydown', onKey);
+    ref.current?.querySelector<HTMLElement>('[role="menuitem"]')?.focus();
+    return () => {
+      document.removeEventListener('mousedown', onDown);
+      document.removeEventListener('keydown', onKey);
+    };
+  }, [open]);
+  const onMenuKey = (e: ReactKeyboardEvent) => {
+    if (e.key !== 'ArrowDown' && e.key !== 'ArrowUp') return;
+    e.preventDefault();
+    const els = [...(ref.current?.querySelectorAll<HTMLElement>('[role="menuitem"]') ?? [])];
+    const i = els.indexOf(document.activeElement as HTMLElement);
+    const next = e.key === 'ArrowDown' ? (i + 1) % els.length : (i - 1 + els.length) % els.length;
+    els[next]?.focus();
+  };
+  return (
+    <div className={s.menuWrap} ref={ref}>
+      <button
+        type="button"
+        className={triggerClassName ?? s.iconButton}
+        aria-label={label}
+        aria-haspopup="menu"
+        aria-expanded={open}
+        onClick={() => setOpen((v) => !v)}
+      >
+        {trigger}
+      </button>
+      {open && (
+        <div className={cx(s.menu, align === 'start' && s.menuStart)} role="menu" aria-label={label} onKeyDown={onMenuKey}>
+          {header}
+          {items.map((it) => (
+            <button
+              key={it.label}
+              type="button"
+              role="menuitem"
+              className={cx(s.menuItem, it.danger && s.menuDanger)}
+              onClick={() => {
+                setOpen(false);
+                it.onSelect();
+              }}
+            >
+              {it.icon && <Icon src={it.icon} size={18} />}
+              {it.label}
+            </button>
+          ))}
+        </div>
+      )}
+    </div>
+  );
+}
+
+export function Avatar({ name, size = 32 }: { name: string; size?: number }) {
+  const initials = name
+    .split(/[\s._-]+/)
+    .filter(Boolean)
+    .slice(0, 2)
+    .map((p) => p[0]!.toUpperCase())
+    .join('');
+  return (
+    <span className={s.avatar} style={{ width: size, height: size, fontSize: size * 0.38 }} aria-hidden>
+      {initials || '?'}
+    </span>
+  );
+}
+
+export { cx };
diff --git a/apps/web/src/styles.css b/apps/web/src/styles.css
index aa051a2..f8a6a68 100644
--- a/apps/web/src/styles.css
+++ b/apps/web/src/styles.css
@@ -1,6 +1,8 @@
 @import '@pipu/design-tokens/tokens.css';
 @import '@fontsource/onest/400.css';
+@import '@fontsource/onest/500.css';
 @import '@fontsource/onest/600.css';
+@import '@fontsource/onest/700.css';
 @import '@fontsource/unbounded/600.css';
 @import '@fontsource/jetbrains-mono/400.css';
 
@@ -23,6 +25,11 @@ body {
   font-family: var(--font-body);
   font-size: 15px;
   -webkit-font-smoothing: antialiased;
+  color-scheme: dark;
+}
+
+:root[data-theme='light'] body {
+  color-scheme: light;
 }
 
 button {
@@ -34,118 +41,23 @@ button {
   cursor: pointer;
 }
 
-.shell {
-  min-height: 100%;
-  display: flex;
-  flex-direction: column;
+:focus-visible {
+  outline: 2px solid var(--accent);
+  outline-offset: 2px;
 }
 
-.top {
-  display: flex;
-  align-items: center;
-  justify-content: space-between;
-  height: 60px;
-  padding: 0 20px;
-  border-bottom: 1px solid var(--line);
+@keyframes pipuIn {
+  from {
+    opacity: 0;
+    transform: translateY(6px);
+  }
 }
 
-.logo {
-  display: flex;
-  align-items: center;
-  gap: 10px;
-  font-family: var(--font-display);
-  font-weight: 600;
-  font-size: 19px;
-  letter-spacing: -0.02em;
-}
-
-.logo-dot {
-  width: 28px;
-  height: 28px;
-  border-radius: 50%;
-  background: radial-gradient(circle at 35% 30%, #9cc6ff, #2f80ff 55%, #3a1fa8);
-  box-shadow: 0 0 18px rgba(47, 128, 255, 0.55);
-}
-
-.langs {
-  display: flex;
-  gap: 2px;
-  padding: 3px;
-  border-radius: 10px;
-  background: var(--glass);
-  border: 1px solid var(--line);
-}
-
-.langs button {
-  height: 30px;
-  padding: 0 12px;
-  border-radius: 8px;
-  font-size: 13px;
-  font-weight: 600;
-  color: var(--text2);
-}
-
-.langs button[aria-pressed='true'] {
-  background: var(--accent-soft);
-  color: var(--text);
-}
-
-.main {
-  flex: 1;
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  padding: 24px 16px;
-}
-
-.card {
-  width: 400px;
-  max-width: 100%;
-  display: flex;
-  flex-direction: column;
-  gap: 12px;
-  padding: 36px;
-  border-radius: var(--radius-xl);
-  background: var(--glass);
-  border: 1px solid var(--line2);
-  box-shadow: var(--shadow);
-}
-
-.card h1 {
-  margin: 0;
-  font-family: var(--font-display);
-  font-size: 26px;
-  font-weight: 600;
-  letter-spacing: -0.01em;
-}
-
-.muted {
-  margin: 0;
-  color: var(--text2);
-  line-height: 1.5;
-}
-
-.status {
-  display: flex;
-  align-items: center;
-  gap: 8px;
-  padding: 10px 12px;
-  border-radius: 10px;
-  font-size: 13px;
-  font-weight: 500;
-}
-
-.status[data-state='ok'] {
-  background: var(--ok-soft);
-  color: var(--ok);
-}
-
-.status[data-state='error'] {
-  background: var(--danger-soft);
-  color: var(--danger);
-}
-
-.status[data-state='pending'] {
-  background: var(--surface2);
-  color: var(--text2);
+@media (prefers-reduced-motion: reduce) {
+  *,
+  *::before,
+  *::after {
+    animation-duration: 0.01ms !important;
+    transition-duration: 0.01ms !important;
+  }
 }
diff --git a/apps/web/src/test/fakeApi.ts b/apps/web/src/test/fakeApi.ts
new file mode 100644
index 0000000..e6d5227
--- /dev/null
+++ b/apps/web/src/test/fakeApi.ts
@@ -0,0 +1,154 @@
+import type { components } from '@pipu/api-client';
+
+type Me = components['schemas']['Me'];
+type AdminUser = components['schemas']['AdminUser'];
+type Role = components['schemas']['Role'];
+
+export interface FakeUser extends AdminUser {
+  password: string;
+}
+
+const json = (body: unknown, status = 200) =>
+  new Response(JSON.stringify(body), {
+    status,
+    headers: { 'Content-Type': status >= 400 ? 'application/problem+json' : 'application/json' },
+  });
+const problem = (status: number, code: string, extra: object = {}) => json({ status, code, ...extra }, status);
+
+let seq = 0;
+
+export function makeUser(username: string, role: Role, extra: Partial<FakeUser> = {}): FakeUser {
+  seq++;
+  return {
+    id: `00000000-0000-4000-8000-${String(seq).padStart(12, '0')}`,
+    username,
+    display_name: null,
+    role,
+    locale: 'ru',
+    is_blocked: false,
+    must_change_password: false,
+    must_change_credentials: false,
+    created_at: '2026-01-01T00:00:00Z',
+    last_login_at: null,
+    password: `${username}-password`,
+    ...extra,
+  };
+}
+
+/**
+ * Мини-сервер API для компонентных тестов: вход, refresh по cookie, /me, админка пользователей.
+ * Проверки прав упрощены — точная матрица покрыта тестами Go.
+ */
+export function fakeApi(initial: FakeUser[]) {
+  const users = new Map(initial.map((u) => [u.id, { ...u }]));
+  const prefs = new Map<string, components['schemas']['UiPrefs']>();
+  let current: string | null = null; // id вошедшего (одна сессия на тест)
+  let token = 0;
+  const calls: { method: string; path: string; body: unknown }[] = [];
+
+  const me = (u: FakeUser): Me => ({
+    id: u.id,
+    username: u.username,
+    display_name: u.display_name,
+    role: u.role,
+    locale: u.locale,
+    ui_prefs: prefs.get(u.id) ?? {},
+    must_change_password: u.must_change_password,
+    must_change_credentials: u.must_change_credentials,
+    created_at: u.created_at,
+  });
+  const tokens = (u: FakeUser) => json({ access_token: `T${++token}`, token_type: 'Bearer', expires_in: 900, user: me(u) });
+  const admin = (u: FakeUser): AdminUser => {
+    const { password, ...rest } = u;
+    void password;
+    return rest;
+  };
+
+  const fetchImpl = async (input: RequestInfo | URL): Promise<Response> => {
+    const req = input as Request;
+    const url = new URL(req.url);
+    const path = url.pathname;
+    const text = await req.text();
+    const body = text ? (JSON.parse(text) as Record<string, unknown>) : undefined;
+    calls.push({ method: req.method, path, body });
+    const route = `${req.method} ${path}`;
+    const user = current ? users.get(current) : undefined;
+
+    switch (route) {
+      case 'GET /api/v1/server-info':
+        return json({
+          name: 'pipu-music',
+          version: '0.2.0',
+          api_version: 'v1',
+          supported_locales: ['ru', 'en'],
+          min_android_version_code: 0,
+          bootstrap_required: [...users.values()].some((u) => u.must_change_credentials),
+        });
+      case 'POST /api/v1/auth/login': {
+        const u = [...users.values()].find((x) => x.username === body?.username && x.password === body?.password);
+        if (!u) return problem(401, 'auth.invalid_credentials');
+        current = u.id;
+        return tokens(u);
+      }
+      case 'POST /api/v1/auth/refresh':
+        return user ? tokens(user) : problem(401, 'auth.refresh_invalid');
+    }
+
+    if (!user || !req.headers.get('Authorization')) return problem(401, 'auth.unauthorized');
+
+    switch (route) {
+      case 'POST /api/v1/auth/logout':
+      case 'POST /api/v1/auth/logout-all':
+        current = null;
+        return new Response(null, { status: 204 });
+      case 'GET /api/v1/me':
+        return json(me(user));
+      case 'PATCH /api/v1/me': {
+        if (typeof body?.locale === 'string') user.locale = body.locale;
+        if (typeof body?.display_name === 'string') user.display_name = body.display_name || null;
+        if (body?.ui_prefs) prefs.set(user.id, { ...prefs.get(user.id), ...(body.ui_prefs as object) });
+        return json(me(user));
+      }
+      case 'POST /api/v1/me/bootstrap-credentials': {
+        const pw = String(body?.new_password ?? '');
+        if (pw.length < 12)
+          return problem(422, 'validation.password_too_short', {
+            params: { min: 12 },
+            errors: [{ field: 'new_password', code: 'validation.password_too_short' }],
+          });
+        Object.assign(user, { username: body?.new_username, password: pw, must_change_credentials: false });
+        return tokens(user);
+      }
+      case 'POST /api/v1/me/password':
+        Object.assign(user, { password: body?.new_password, must_change_password: false });
+        return tokens(user);
+      case 'GET /api/v1/me/sessions':
+        return json({ items: [] });
+      case 'GET /api/v1/admin/users': {
+        if (user.role === 'user') return problem(403, 'auth.forbidden');
+        const q = (url.searchParams.get('q') ?? '').toLowerCase();
+        const role = url.searchParams.get('role');
+        const items = [...users.values()]
+          .filter((u) => (!q || u.username.includes(q)) && (!role || u.role === role))
+          .sort((a, b) => a.username.localeCompare(b.username))
+          .map(admin);
+        return json({ items, next_cursor: null });
+      }
+      case 'POST /api/v1/admin/users': {
+        if (user.role === 'moderator' && body?.role !== 'user') return problem(403, 'auth.forbidden');
+        const u = makeUser(String(body?.username), body?.role as Role, {
+          display_name: (body?.display_name as string) ?? null,
+          must_change_password: true,
+          password: 'Temp-Pass-123',
+        });
+        users.set(u.id, u);
+        return json({ user: admin(u), temporary_password: u.password }, 201);
+      }
+      case 'GET /api/v1/admin/audit':
+        return json({ items: [], next_cursor: null });
+    }
+    return problem(404, 'common.not_found');
+  };
+
+  return { fetch: fetchImpl as typeof fetch, calls, users, signOut: () => (current = null) };
+}
diff --git a/apps/web/src/test/setup.ts b/apps/web/src/test/setup.ts
new file mode 100644
index 0000000..bb02c60
--- /dev/null
+++ b/apps/web/src/test/setup.ts
@@ -0,0 +1 @@
+import '@testing-library/jest-dom/vitest';
diff --git a/apps/web/src/widgets/AppShell.module.css b/apps/web/src/widgets/AppShell.module.css
new file mode 100644
index 0000000..5ba115d
--- /dev/null
+++ b/apps/web/src/widgets/AppShell.module.css
@@ -0,0 +1,202 @@
+.shell {
+  display: grid;
+  grid-template-columns: 240px 1fr;
+  grid-template-rows: 60px 1fr 88px;
+  grid-template-areas:
+    'top top'
+    'side content'
+    'player player';
+  height: 100%;
+}
+
+.top {
+  grid-area: top;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0 20px;
+  border-bottom: 1px solid var(--line);
+  background: var(--bar-a);
+  backdrop-filter: blur(20px);
+}
+
+.logoLink {
+  text-decoration: none;
+}
+
+.topRight {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+}
+
+.profileButton {
+  border-radius: 50%;
+  outline-offset: 3px;
+}
+
+.profileButton[aria-expanded='true'] {
+  box-shadow: 0 0 0 3px var(--accent-soft);
+}
+
+.profileHead {
+  display: grid;
+  grid-template-columns: auto 1fr;
+  gap: 4px 12px;
+  align-items: center;
+  padding: 10px 10px 12px;
+  margin-bottom: 6px;
+  border-bottom: 1px solid var(--line);
+}
+
+.profileHead > :last-child {
+  grid-column: 1 / -1;
+  margin-top: 10px;
+  justify-self: start;
+}
+
+.profileName {
+  font-weight: 600;
+}
+
+.profileMeta {
+  font-size: 12px;
+  color: var(--text3);
+}
+
+.side {
+  grid-area: side;
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+  padding: 16px 12px;
+  border-right: 1px solid var(--line);
+  overflow-y: auto;
+}
+
+.navSection {
+  margin: 18px 12px 6px;
+  font-size: 11px;
+  font-weight: 700;
+  letter-spacing: 0.08em;
+  text-transform: uppercase;
+  color: var(--text3);
+}
+
+.navItem {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  height: 40px;
+  padding: 0 12px;
+  border-radius: 10px;
+  color: var(--text2);
+  font-weight: 500;
+  text-decoration: none;
+}
+
+.navItem:hover {
+  background: var(--hover);
+  color: var(--text);
+}
+
+.navItem[data-status='active'] {
+  background: var(--accent-soft);
+  color: var(--text);
+}
+
+.navIcon {
+  color: var(--text3);
+}
+
+.navItem[data-status='active'] .navIcon {
+  color: var(--accent2);
+}
+
+.content {
+  grid-area: content;
+  overflow-y: auto;
+  padding: 32px 36px;
+  animation: pipuIn 0.2s ease-out;
+}
+
+.player {
+  grid-area: player;
+  display: flex;
+  align-items: center;
+  gap: 14px;
+  padding: 0 20px;
+  border-top: 1px solid var(--line);
+  background: var(--bar-a);
+  backdrop-filter: blur(20px);
+}
+
+.cover {
+  display: grid;
+  place-items: center;
+  width: 52px;
+  height: 52px;
+  border-radius: 10px;
+  background: var(--surface2);
+  color: var(--text3);
+}
+
+.playerEmpty {
+  color: var(--text3);
+  font-size: 14px;
+}
+
+@media (max-width: 1023px) {
+  .shell {
+    grid-template-columns: 72px 1fr;
+  }
+
+  .navItem {
+    justify-content: center;
+    padding: 0;
+    font-size: 0;
+  }
+
+  .navSection {
+    margin: 14px 0 6px;
+    text-align: center;
+    font-size: 0;
+    border-top: 1px solid var(--line);
+  }
+}
+
+@media (max-width: 767px) {
+  .shell {
+    grid-template-columns: 1fr;
+    grid-template-rows: 60px 1fr 72px 64px;
+    grid-template-areas:
+      'top'
+      'content'
+      'player'
+      'side';
+  }
+
+  .side {
+    flex-direction: row;
+    justify-content: space-around;
+    padding: 6px 8px;
+    border-right: 0;
+    border-top: 1px solid var(--line);
+  }
+
+  .navSection {
+    display: none;
+  }
+
+  .navItem {
+    flex: 1;
+  }
+
+  .content {
+    padding: 20px 16px;
+  }
+
+  .player {
+    padding: 0 16px;
+  }
+}
diff --git a/apps/web/src/widgets/AppShell.tsx b/apps/web/src/widgets/AppShell.tsx
new file mode 100644
index 0000000..521207e
--- /dev/null
+++ b/apps/web/src/widgets/AppShell.tsx
@@ -0,0 +1,104 @@
+import { Link, Outlet, useNavigate } from '@tanstack/react-router';
+import { useTranslation } from 'react-i18next';
+
+import { useAuthState, useSession, useUser } from '../app/session';
+import {
+  auditFillIcon,
+  auditIcon,
+  groupFillIcon,
+  groupIcon,
+  homeFillIcon,
+  homeIcon,
+  logoutIcon,
+  musicIcon,
+  settingsIcon,
+} from '../shared/ui/icons';
+import { Avatar, Icon, Logo, Menu } from '../shared/ui/ui';
+import { LanguageSwitch } from './LanguageSwitch';
+import s from './AppShell.module.css';
+
+type NavPath = '/' | '/admin/users' | '/admin/audit';
+
+function NavLink({ to, label, icon, activeIcon }: { to: NavPath; label: string; icon: string; activeIcon: string }) {
+  return (
+    <Link to={to} className={s.navItem} activeOptions={{ exact: to === '/' }}>
+      {({ isActive }) => (
+        <>
+          <Icon src={isActive ? activeIcon : icon} className={s.navIcon} />
+          {label}
+        </>
+      )}
+    </Link>
+  );
+}
+
+/** Между выходом и редиректом на /login каркас не рисуется: пользователя уже нет. */
+export function AppShell() {
+  return useAuthState().status === 'signed_in' ? <Shell /> : null;
+}
+
+function Shell() {
+  const { t } = useTranslation();
+  const user = useUser();
+  const session = useSession();
+  const navigate = useNavigate();
+  const name = user.display_name ?? user.username;
+  const staff = user.role !== 'user';
+
+  return (
+    <div className={s.shell}>
+      <header className={s.top}>
+        <Link to="/" className={s.logoLink}>
+          <Logo />
+        </Link>
+        <div className={s.topRight}>
+          <Menu
+            label={t('profile.menu')}
+            triggerClassName={s.profileButton}
+            trigger={<Avatar name={name} />}
+            header={
+              <div className={s.profileHead}>
+                <Avatar name={name} size={40} />
+                <div>
+                  <div className={s.profileName}>{name}</div>
+                  <div className={s.profileMeta}>
+                    @{user.username} · {t(`roles.${user.role}`)}
+                  </div>
+                </div>
+                <LanguageSwitch />
+              </div>
+            }
+            items={[
+              { label: t('profile.settings'), icon: settingsIcon, onSelect: () => void navigate({ to: '/settings' }) },
+              { label: t('profile.logout'), icon: logoutIcon, danger: true, onSelect: () => void session.logout() },
+            ]}
+          />
+        </div>
+      </header>
+
+      <nav className={s.side} aria-label={t('nav.main')}>
+        <NavLink to="/" label={t('nav.home')} icon={homeIcon} activeIcon={homeFillIcon} />
+        {staff && (
+          <>
+            <div className={s.navSection}>{t('nav.admin')}</div>
+            <NavLink to="/admin/users" label={t('nav.users')} icon={groupIcon} activeIcon={groupFillIcon} />
+            {user.role === 'admin' && (
+              <NavLink to="/admin/audit" label={t('nav.audit')} icon={auditIcon} activeIcon={auditFillIcon} />
+            )}
+          </>
+        )}
+      </nav>
+
+      <main className={s.content}>
+        <Outlet />
+      </main>
+
+      <footer className={s.player} aria-label={t('player.empty')}>
+        <span className={s.cover}>
+          <Icon src={musicIcon} size={22} />
+        </span>
+        <span className={s.playerEmpty}>{t('player.empty')}</span>
+      </footer>
+    </div>
+  );
+}
diff --git a/apps/web/src/widgets/LanguageSwitch.tsx b/apps/web/src/widgets/LanguageSwitch.tsx
new file mode 100644
index 0000000..945ff38
--- /dev/null
+++ b/apps/web/src/widgets/LanguageSwitch.tsx
@@ -0,0 +1,33 @@
+import { unwrap } from '@pipu/core';
+import { SUPPORTED_LOCALES, type Locale } from '@pipu/i18n';
+import { useTranslation } from 'react-i18next';
+
+import { useAuthState, useSession } from '../app/session';
+import { Segmented } from '../shared/ui/ui';
+
+/** Переключатель языка. Для вошедшего пользователя язык сохраняется в профиле (PATCH /me). */
+export function LanguageSwitch() {
+  const { t, i18n } = useTranslation();
+  const session = useSession();
+  const auth = useAuthState();
+
+  const change = async (l: Locale) => {
+    document.documentElement.lang = l;
+    await i18n.changeLanguage(l);
+    if (auth.status !== 'signed_in') return;
+    try {
+      session.setUser(unwrap(await session.client.PATCH('/api/v1/me', { body: { locale: l } })));
+    } catch {
+      // Язык уже переключён локально; сохранится при следующей смене.
+    }
+  };
+
+  return (
+    <Segmented
+      label={t('language.label')}
+      value={(SUPPORTED_LOCALES as readonly string[]).includes(i18n.language) ? (i18n.language as Locale) : 'en'}
+      options={SUPPORTED_LOCALES.map((l) => ({ value: l, label: l.toUpperCase() }))}
+      onChange={(l) => void change(l)}
+    />
+  );
+}
diff --git a/apps/web/src/widgets/RouteError.tsx b/apps/web/src/widgets/RouteError.tsx
new file mode 100644
index 0000000..529fd08
--- /dev/null
+++ b/apps/web/src/widgets/RouteError.tsx
@@ -0,0 +1,15 @@
+import { useTranslation } from 'react-i18next';
+
+import { Button } from '../shared/ui/ui';
+import s from '../pages/page.module.css';
+
+/** Непредвиденная ошибка рендера страницы: короткое сообщение и перезагрузка. */
+export function RouteError() {
+  const { t } = useTranslation(['common', 'errors']);
+  return (
+    <div className={s.empty} role="alert">
+      <p>{t('errors:common.internal')}</p>
+      <Button onClick={() => window.location.reload()}>{t('route_error.reload')}</Button>
+    </div>
+  );
+}
diff --git a/apps/web/vite.config.ts b/apps/web/vite.config.ts
index 31d4321..9297f6d 100644
--- a/apps/web/vite.config.ts
+++ b/apps/web/vite.config.ts
@@ -19,5 +19,6 @@ export default defineConfig({
   },
   test: {
     environment: 'jsdom',
+    setupFiles: ['src/test/setup.ts'],
   },
 });
diff --git a/docs/web.md b/docs/web.md
index ea953d0..c3573fe 100644
--- a/docs/web.md
+++ b/docs/web.md
@@ -10,10 +10,10 @@
 | Серверное состояние | TanStack Query (кэш, инвалидация, бесконечные списки) |
 | Клиентское состояние | Zustand (плеер, очередь, UI) |
 | Стили | CSS Modules + CSS-переменные из `packages/design-tokens`; тёмная и светлая темы ([design.md](design.md#2-токены)) |
-| Шрифты и иконки | `@fontsource` Onest / Unbounded / JetBrains Mono, сабсет Material Symbols Rounded — всё встроено в сборку |
-| Компоненты-примитивы | Radix UI (доступные меню, диалоги, слайдеры, popover поиска) |
+| Шрифты и иконки | `@fontsource` Onest / Unbounded / JetBrains Mono; иконки — SVG Material Symbols Rounded (`@material-symbols/svg-400`), импортируются поштучно в `shared/ui/icons.ts` и рисуются CSS-маской (`currentColor`), поэтому в сборку попадают только используемые — всё встроено в сборку |
+| Компоненты-примитивы | Radix UI (доступные меню, диалоги, слайдеры, popover поиска); в M1 — собственные `Menu` / `Dialog` в `shared/ui`, переход на Radix вместе с поиском (M2) |
 | Анимация | Motion (переходы UI), Canvas 2D для кнопки волны (порт `wave.js` из прототипа) |
-| Формы | React Hook Form + Zod |
+| Формы | React Hook Form + Zod (в M1 формы простые — контролируемые поля, валидация на сервере с ошибками полей) |
 | i18n | i18next + react-i18next, словари из `packages/i18n` |
 | API | `packages/api-client` (сгенерирован из OpenAPI, `openapi-typescript` + `openapi-fetch`) |
 
diff --git a/packages/core/src/auth.test.ts b/packages/core/src/auth.test.ts
new file mode 100644
index 0000000..d18f7eb
--- /dev/null
+++ b/packages/core/src/auth.test.ts
@@ -0,0 +1,198 @@
+import { describe, expect, it, vi } from 'vitest';
+
+import { ApiError, AuthSession, type AuthTokens, type RefreshStore } from './auth';
+
+const user = {
+  id: '00000000-0000-0000-0000-000000000001',
+  username: 'alice',
+  display_name: null,
+  role: 'user' as const,
+  locale: 'ru',
+  ui_prefs: {},
+  must_change_password: false,
+  must_change_credentials: false,
+  created_at: '2026-01-01T00:00:00Z',
+};
+
+const tokens = (access: string, refresh?: string): AuthTokens => ({
+  access_token: access,
+  token_type: 'Bearer',
+  expires_in: 900,
+  refresh_token: refresh,
+  user,
+});
+
+const json = (body: unknown, status = 200) =>
+  new Response(JSON.stringify(body), {
+    status,
+    headers: { 'Content-Type': status >= 400 ? 'application/problem+json' : 'application/json' },
+  });
+
+const problem = (status: number, code: string, extra: object = {}) => json({ status, code, ...extra }, status);
+
+type Handler = (req: Request) => Response | Promise<Response>;
+
+/** Фейковый сервер: маршруты по «METHOD path», журнал запросов. */
+function server(routes: Record<string, Handler>) {
+  const log: { route: string; auth: string | null; body: string }[] = [];
+  const fetchImpl = async (input: RequestInfo | URL) => {
+    const req = input as Request;
+    const route = `${req.method} ${new URL(req.url).pathname}`;
+    log.push({ route, auth: req.headers.get('Authorization'), body: await req.clone().text() });
+    const h = routes[route];
+    if (!h) return problem(404, 'common.not_found');
+    return h(req);
+  };
+  return { fetch: fetchImpl as typeof fetch, log };
+}
+
+const memoryStore = (initial: string | null = null): RefreshStore & { value: string | null } => ({
+  value: initial,
+  async get() {
+    return this.value;
+  },
+  async set(v) {
+    this.value = v;
+  },
+  async clear() {
+    this.value = null;
+  },
+});
+
+describe('AuthSession', () => {
+  it('logs in and sends the bearer token', async () => {
+    const s = server({
+      'POST /api/v1/auth/login': () => json(tokens('A1')),
+      'GET /api/v1/me': (req) =>
+        req.headers.get('Authorization') === 'Bearer A1' ? json(user) : problem(401, 'auth.unauthorized'),
+    });
+    const auth = new AuthSession({ baseUrl: 'http://x', fetch: s.fetch, clientType: 'web', deviceName: 'Test' });
+    const states: string[] = [];
+    auth.subscribe((st) => states.push(st.status));
+
+    await auth.login('alice', 'secret');
+    expect(JSON.parse(s.log[0]!.body)).toEqual({
+      username: 'alice',
+      password: 'secret',
+      client_type: 'web',
+      device_name: 'Test',
+    });
+    const me = await auth.client.GET('/api/v1/me');
+    expect(me.data?.username).toBe('alice');
+    expect(states).toEqual(['signed_in']);
+  });
+
+  it('turns problem+json into ApiError with field errors', async () => {
+    const s = server({
+      'POST /api/v1/auth/login': () => problem(401, 'auth.invalid_credentials'),
+    });
+    const auth = new AuthSession({ baseUrl: 'http://x', fetch: s.fetch, clientType: 'web' });
+    const err = await auth.login('alice', 'bad').catch((e: unknown) => e);
+    expect(err).toBeInstanceOf(ApiError);
+    expect((err as ApiError).code).toBe('auth.invalid_credentials');
+    expect(auth.state.status).toBe('unknown');
+
+    const e2 = new ApiError(422, 'validation.password_too_short', { min: 8 }, [
+      { field: 'new_password', code: 'validation.password_too_short' },
+    ]);
+    expect(e2.fieldCode('new_password')).toBe('validation.password_too_short');
+    expect(e2.fieldCode('other')).toBeUndefined();
+  });
+
+  it('refreshes once for parallel expired requests and retries them', async () => {
+    let refreshes = 0;
+    const s = server({
+      'POST /api/v1/auth/login': () => json(tokens('old')),
+      'POST /api/v1/auth/refresh': async () => {
+        refreshes++;
+        await new Promise((r) => setTimeout(r, 10));
+        return json(tokens('new'));
+      },
+      'GET /api/v1/me': (req) =>
+        req.headers.get('Authorization') === 'Bearer new' ? json(user) : problem(401, 'auth.token_expired'),
+    });
+    const auth = new AuthSession({ baseUrl: 'http://x', fetch: s.fetch, clientType: 'web' });
+    await auth.login('alice', 'secret');
+
+    const results = await Promise.all([1, 2, 3].map(() => auth.client.GET('/api/v1/me')));
+    expect(results.every((r) => r.data?.username === 'alice')).toBe(true);
+    expect(refreshes).toBe(1);
+  });
+
+  it('does not refresh on other 401 codes and signs out a blocked user', async () => {
+    const s = server({
+      'POST /api/v1/auth/login': () => json(tokens('A')),
+      'GET /api/v1/me': () => problem(401, 'auth.user_blocked'),
+    });
+    const auth = new AuthSession({ baseUrl: 'http://x', fetch: s.fetch, clientType: 'web' });
+    await auth.login('alice', 'secret');
+    const res = await auth.client.GET('/api/v1/me');
+    expect(res.response.status).toBe(401);
+    expect(s.log.some((l) => l.route.includes('refresh'))).toBe(false);
+    expect(auth.state).toEqual({ status: 'signed_out', reason: 'auth.user_blocked' });
+  });
+
+  it('signs out when refresh is rejected', async () => {
+    const s = server({
+      'POST /api/v1/auth/refresh': () => problem(401, 'auth.refresh_reused'),
+    });
+    const auth = new AuthSession({ baseUrl: 'http://x', fetch: s.fetch, clientType: 'web' });
+    expect(await auth.restore()).toEqual({ status: 'signed_out', reason: 'auth.refresh_reused' });
+  });
+
+  it('retries a refresh race once', async () => {
+    let n = 0;
+    const s = server({
+      'POST /api/v1/auth/refresh': () => (++n === 1 ? problem(401, 'auth.refresh_race') : json(tokens('A'))),
+    });
+    const auth = new AuthSession({ baseUrl: 'http://x', fetch: s.fetch, clientType: 'web' });
+    expect((await auth.restore()).status).toBe('signed_in');
+    expect(n).toBe(2);
+  });
+
+  it('keeps the session on network errors during refresh', async () => {
+    const auth = new AuthSession({
+      baseUrl: 'http://x',
+      fetch: async () => {
+        throw new TypeError('Failed to fetch');
+      },
+      clientType: 'web',
+    });
+    expect(await auth.refresh()).toBe(false);
+    expect(auth.state.status).toBe('unknown');
+  });
+
+  it('android keeps the refresh token in the store', async () => {
+    const store = memoryStore('R0');
+    const s = server({
+      'POST /api/v1/auth/refresh': async (req) => {
+        const body = (await req.json()) as { refresh_token: string };
+        return body.refresh_token === 'R0' ? json(tokens('A1', 'R1')) : problem(401, 'auth.refresh_invalid');
+      },
+      'POST /api/v1/auth/logout': () => new Response(null, { status: 204 }),
+    });
+    const auth = new AuthSession({ baseUrl: 'http://x', fetch: s.fetch, clientType: 'android', refreshStore: store });
+    expect((await auth.restore()).status).toBe('signed_in');
+    expect(store.value).toBe('R1');
+
+    await auth.logout();
+    expect(store.value).toBeNull();
+    expect(auth.state.status).toBe('signed_out');
+    expect(s.log.at(-1)).toMatchObject({ route: 'POST /api/v1/auth/logout', auth: 'Bearer A1' });
+    expect(await auth.refresh()).toBe(false);
+  });
+
+  it('requires a refresh store for android', () => {
+    expect(() => new AuthSession({ clientType: 'android' })).toThrow(/refreshStore/);
+  });
+
+  it('notifies subscribers about profile updates', async () => {
+    const s = server({ 'POST /api/v1/auth/login': () => json(tokens('A')) });
+    const auth = new AuthSession({ baseUrl: 'http://x', fetch: s.fetch, clientType: 'web' });
+    const fn = vi.fn();
+    auth.subscribe(fn);
+    await auth.login('alice', 'x');
+    auth.setUser({ ...user, display_name: 'Alice' });
+    expect(fn).toHaveBeenLastCalledWith({ status: 'signed_in', user: { ...user, display_name: 'Alice' } });
+  });
+});
diff --git a/packages/core/src/auth.ts b/packages/core/src/auth.ts
new file mode 100644
index 0000000..2a2060d
--- /dev/null
+++ b/packages/core/src/auth.ts
@@ -0,0 +1,219 @@
+import { createApiClient, type ApiClient, type components } from '@pipu/api-client';
+
+export type AuthUser = components['schemas']['Me'];
+export type AuthTokens = components['schemas']['AuthTokens'];
+export type ClientType = components['schemas']['ClientType'];
+
+/** Ошибка API с машинным кодом (problem+json). Текст для пользователя — перевод `errors:<code>`. */
+export class ApiError extends Error {
+  readonly status: number;
+  readonly code: string;
+  readonly params: Record<string, unknown>;
+  readonly fields: { field: string; code: string }[];
+
+  constructor(status: number, code: string, params: Record<string, unknown> = {}, fields: ApiError['fields'] = []) {
+    super(code);
+    this.name = 'ApiError';
+    this.status = status;
+    this.code = code;
+    this.params = params;
+    this.fields = fields;
+  }
+
+  /** Код ошибки конкретного поля формы, если сервер его указал. */
+  fieldCode(field: string): string | undefined {
+    return this.fields.find((f) => f.field === field)?.code;
+  }
+}
+
+/** Превращает ответ openapi-fetch с ошибкой в ApiError. Сетевые сбои — код `common.network`. */
+export function toApiError(error: unknown, response?: Response): ApiError {
+  if (error instanceof ApiError) return error;
+  const p = (error ?? {}) as Partial<components['schemas']['Problem']>;
+  if (typeof p.code === 'string') {
+    return new ApiError(p.status ?? response?.status ?? 0, p.code, p.params ?? {}, p.errors ?? []);
+  }
+  if (response) return new ApiError(response.status, response.status >= 500 ? 'common.internal' : 'common.bad_request');
+  return new ApiError(0, 'common.network');
+}
+
+/** Достаёт данные из результата openapi-fetch или бросает ApiError. */
+export function unwrap<T>(res: { data?: T; error?: unknown; response: Response }): T {
+  if (res.error !== undefined || !res.response.ok) throw toApiError(res.error, res.response);
+  return res.data as T;
+}
+
+/** Хранилище refresh-токена для клиентов без cookie (Android: expo-secure-store). */
+export interface RefreshStore {
+  get(): Promise<string | null>;
+  set(token: string): Promise<void>;
+  clear(): Promise<void>;
+}
+
+export type AuthState =
+  | { status: 'unknown' }
+  | { status: 'signed_out'; reason?: string }
+  | { status: 'signed_in'; user: AuthUser };
+
+export interface AuthSessionOptions {
+  /** Адрес сервера; пусто — тот же origin (веб). */
+  baseUrl?: string;
+  fetch?: typeof globalThis.fetch;
+  clientType: ClientType;
+  deviceName?: string;
+  /** Обязателен для android: веб хранит refresh в HttpOnly-cookie. */
+  refreshStore?: RefreshStore;
+}
+
+/** Коды 401, после которых имеет смысл обновить access-токен и повторить запрос. */
+const RETRYABLE = new Set(['auth.token_expired', 'auth.token_invalid', 'auth.token_revoked']);
+
+const RACE_RETRY_MS = 300;
+
+const sleep = (ms: number) => new Promise((r) => setTimeout(r, ms));
+
+/**
+ * Сессия пользователя: access-токен в памяти, refresh — в cookie (веб) или RefreshStore (Android).
+ * `client` сам подставляет Bearer и при истёкшем токене делает **один** общий refresh на все
+ * параллельные запросы (single-flight), после чего повторяет их.
+ */
+export class AuthSession {
+  readonly client: ApiClient;
+  private readonly raw: ApiClient;
+  private readonly opts: AuthSessionOptions;
+  private readonly baseFetch: typeof globalThis.fetch;
+  private access: string | null = null;
+  private refreshing: Promise<boolean> | null = null;
+  private current: AuthState = { status: 'unknown' };
+  private readonly listeners = new Set<(s: AuthState) => void>();
+
+  constructor(opts: AuthSessionOptions) {
+    if (opts.clientType === 'android' && !opts.refreshStore) {
+      throw new Error('AuthSession: android client needs a refreshStore');
+    }
+    this.opts = opts;
+    this.baseFetch = opts.fetch ?? ((...args) => globalThis.fetch(...args));
+    this.raw = createApiClient({ baseUrl: opts.baseUrl, fetch: this.baseFetch });
+    this.client = createApiClient({ baseUrl: opts.baseUrl, fetch: (req) => this.authFetch(req as Request) });
+  }
+
+  get state(): AuthState {
+    return this.current;
+  }
+
+  /** Подписка на смену состояния; возвращает функцию отписки. */
+  subscribe(fn: (s: AuthState) => void): () => void {
+    this.listeners.add(fn);
+    return () => this.listeners.delete(fn);
+  }
+
+  private setState(s: AuthState) {
+    this.current = s;
+    for (const fn of this.listeners) fn(s);
+  }
+
+  /** Восстанавливает сессию после перезагрузки по refresh-токену. */
+  async restore(): Promise<AuthState> {
+    if (!(await this.refresh())) {
+      if (this.current.status !== 'signed_out') this.setState({ status: 'signed_out' });
+    }
+    return this.current;
+  }
+
+  async login(username: string, password: string): Promise<AuthUser> {
+    const res = await this.raw.POST('/api/v1/auth/login', {
+      body: { username, password, client_type: this.opts.clientType, device_name: this.opts.deviceName },
+    });
+    return this.apply(unwrap(res));
+  }
+
+  /** Принимает новую пару токенов (вход, смена пароля, смена учётных данных). */
+  async apply(tokens: AuthTokens): Promise<AuthUser> {
+    this.access = tokens.access_token;
+    if (tokens.refresh_token && this.opts.refreshStore) await this.opts.refreshStore.set(tokens.refresh_token);
+    this.setState({ status: 'signed_in', user: tokens.user });
+    return tokens.user;
+  }
+
+  /** Обновляет профиль в состоянии (после PATCH /me). */
+  setUser(user: AuthUser) {
+    if (this.current.status === 'signed_in') this.setState({ status: 'signed_in', user });
+  }
+
+  async logout(all = false): Promise<void> {
+    try {
+      if (this.access) await this.client.POST(all ? '/api/v1/auth/logout-all' : '/api/v1/auth/logout');
+    } finally {
+      await this.signOut();
+    }
+  }
+
+  private async signOut(reason?: string) {
+    this.access = null;
+    await this.opts.refreshStore?.clear();
+    this.setState({ status: 'signed_out', reason });
+  }
+
+  /** Single-flight: параллельные вызовы ждут один и тот же запрос. */
+  refresh(): Promise<boolean> {
+    this.refreshing ??= this.doRefresh().finally(() => {
+      this.refreshing = null;
+    });
+    return this.refreshing;
+  }
+
+  private async doRefresh(attempt = 0): Promise<boolean> {
+    let body: { refresh_token?: string } | undefined;
+    if (this.opts.refreshStore) {
+      const token = await this.opts.refreshStore.get();
+      if (!token) return false;
+      body = { refresh_token: token };
+    }
+    let res;
+    try {
+      res = await this.raw.POST('/api/v1/auth/refresh', { body });
+    } catch {
+      return false; // сеть недоступна: сессию не трогаем, следующий запрос попробует снова
+    }
+    if (res.data) {
+      await this.apply(res.data);
+      return true;
+    }
+    const err = toApiError(res.error, res.response);
+    if (err.code === 'auth.refresh_race' && attempt === 0) {
+      // Другая вкладка только что обновила cookie — повторяем уже с новой.
+      await sleep(RACE_RETRY_MS);
+      return this.doRefresh(attempt + 1);
+    }
+    if (res.response.status === 401 || res.response.status === 403) await this.signOut(err.code);
+    return false;
+  }
+
+  private async authFetch(request: Request): Promise<Response> {
+    const retry = request.clone();
+    const sent = this.access;
+    const res = await this.baseFetch(this.withAuth(request));
+    if (res.status !== 401) return res;
+
+    const code = await res
+      .clone()
+      .json()
+      .then((p: { code?: string }) => p.code)
+      .catch(() => undefined);
+    if (!code || !RETRYABLE.has(code)) {
+      if (code === 'auth.user_blocked') await this.signOut(code);
+      return res;
+    }
+    // Пока запрос был в пути, токен уже обновил кто-то другой — повторяем без новой ротации.
+    const fresh = this.access !== null && this.access !== sent;
+    if (!fresh && !(await this.refresh())) return res;
+    return this.baseFetch(this.withAuth(retry));
+  }
+
+  private withAuth(request: Request): Request {
+    if (!this.access) return request;
+    const headers = new Headers(request.headers);
+    headers.set('Authorization', `Bearer ${this.access}`);
+    return new Request(request, { headers });
+  }
+}
diff --git a/packages/core/src/index.ts b/packages/core/src/index.ts
index 0e73f59..ec4ecaa 100644
--- a/packages/core/src/index.ts
+++ b/packages/core/src/index.ts
@@ -1 +1,13 @@
+export {
+  ApiError,
+  AuthSession,
+  toApiError,
+  unwrap,
+  type AuthSessionOptions,
+  type AuthState,
+  type AuthTokens,
+  type AuthUser,
+  type ClientType,
+  type RefreshStore,
+} from './auth';
 export { checkServer, normalizeServerUrl, SERVER_CHECK_TIMEOUT_MS, type ServerCheck } from './server';
diff --git a/packages/i18n/locales/en/admin.json b/packages/i18n/locales/en/admin.json
new file mode 100644
index 0000000..322cf41
--- /dev/null
+++ b/packages/i18n/locales/en/admin.json
@@ -0,0 +1,66 @@
+{
+  "users": {
+    "title": "Users",
+    "subtitle": "Create users and moderators, manage roles, reset passwords, block accounts",
+    "create": "Create user",
+    "search": "Name or username",
+    "all": "All",
+    "col_user": "User",
+    "col_role": "Role",
+    "col_status": "Status",
+    "col_last_login": "Last seen",
+    "status_active": "Active",
+    "status_blocked": "Blocked",
+    "status_must_change": "Must change password",
+    "never": "Never signed in",
+    "empty": "Nobody found",
+    "more": "Show more",
+    "actions": "Actions for {{username}}",
+    "reset_password": "Reset password",
+    "block": "Block",
+    "unblock": "Unblock",
+    "make_role": "Make {{role}}",
+    "delete": "Delete",
+    "delete_confirm": "Delete {{username}}? Their history and likes will be lost.",
+    "block_confirm": "Block {{username}}? All their sessions will end.",
+    "reset_confirm": "Reset {{username}}'s password? All their sessions will end.",
+    "confirm": "Confirm",
+    "you": "you"
+  },
+  "create": {
+    "title": "New user",
+    "username": "Username",
+    "username_hint": "Latin letters, digits, \".\", \"_\", \"-\"",
+    "display_name": "Name",
+    "role": "Role",
+    "password_note": "The server will generate a password and show it once.",
+    "submit": "Create"
+  },
+  "temp_password": {
+    "title": "Temporary password",
+    "text": "Give this password to {{username}}. It is shown only now; they will be asked to change it on sign-in.",
+    "done": "Done"
+  },
+  "audit": {
+    "title": "Audit log",
+    "subtitle": "Actions of administrators and moderators",
+    "col_when": "When",
+    "col_who": "Who",
+    "col_action": "Action",
+    "col_details": "Details",
+    "system": "System",
+    "empty": "No entries yet",
+    "more": "Show more",
+    "actions": {
+      "user.bootstrap_create": "Initial administrator created",
+      "user.bootstrap_credentials": "Administrator credentials set",
+      "user.create": "User created",
+      "user.rename": "Name changed",
+      "user.role_change": "Role changed",
+      "user.block": "User blocked",
+      "user.unblock": "User unblocked",
+      "user.password_reset": "Password reset",
+      "user.delete": "User deleted"
+    }
+  }
+}
diff --git a/packages/i18n/locales/en/auth.json b/packages/i18n/locales/en/auth.json
new file mode 100644
index 0000000..aaed601
--- /dev/null
+++ b/packages/i18n/locales/en/auth.json
@@ -0,0 +1,24 @@
+{
+  "login": {
+    "title": "Sign in",
+    "subtitle": "Your music from your own server",
+    "username": "Username",
+    "password": "Password",
+    "submit": "Sign in",
+    "bootstrap_hint": "First start: sign in as the administrator. The password is set in BOOTSTRAP_ADMIN_PASSWORD or printed in the api service log."
+  },
+  "setup": {
+    "admin_badge": "First administrator sign-in",
+    "admin_title": "Change the username and password",
+    "admin_text": "The server stays locked until you do: the initial administrator credentials are visible in logs and settings.",
+    "password_badge": "Password reset",
+    "password_title": "Set a new password",
+    "password_text": "You signed in with a temporary password. Choose your own — the temporary one will stop working.",
+    "new_username": "New username",
+    "new_password": "New password",
+    "repeat_password": "Repeat the password",
+    "min_length": "At least {{min}} characters",
+    "submit": "Save and continue",
+    "logout": "Sign out"
+  }
+}
diff --git a/packages/i18n/locales/en/common.json b/packages/i18n/locales/en/common.json
index 85ba38e..ae6d587 100644
--- a/packages/i18n/locales/en/common.json
+++ b/packages/i18n/locales/en/common.json
@@ -17,5 +17,67 @@
     "label": "Language",
     "ru": "Русский",
     "en": "English"
+  },
+  "nav": {
+    "main": "Navigation",
+    "home": "Home",
+    "admin": "Admin",
+    "users": "Users",
+    "audit": "Audit log"
+  },
+  "profile": {
+    "menu": "Profile menu",
+    "settings": "Settings",
+    "logout": "Sign out"
+  },
+  "roles": {
+    "admin": "Administrator",
+    "moderator": "Moderator",
+    "user": "User"
+  },
+  "home": {
+    "greeting": "Hi, {{name}}!",
+    "wave": "My Wave",
+    "wave_soon": "An endless stream tuned to your taste will appear once the server has a library."
+  },
+  "player": {
+    "empty": "Nothing is playing"
+  },
+  "settings": {
+    "title": "Settings",
+    "account": "Account",
+    "display_name": "Display name",
+    "save": "Save",
+    "saved": "Saved",
+    "appearance": "Appearance",
+    "theme": "Theme",
+    "theme_dark": "Dark",
+    "theme_light": "Light",
+    "theme_system": "System",
+    "password": "Password",
+    "current_password": "Current password",
+    "new_password": "New password",
+    "repeat_password": "Repeat the password",
+    "change_password": "Change password",
+    "password_changed": "Password changed. Other devices have been signed out.",
+    "sessions": "Devices",
+    "session_current": "This device",
+    "session_last_used": "Active: {{date}}",
+    "session_end": "Sign out",
+    "logout_all": "Sign out everywhere"
+  },
+  "form": {
+    "show_password": "Show password",
+    "hide_password": "Hide password",
+    "passwords_mismatch": "Passwords don't match",
+    "required": "Fill in this field",
+    "cancel": "Cancel",
+    "close": "Close",
+    "copy": "Copy",
+    "copied": "Copied"
+  },
+  "loading": "Loading…",
+  "route_error": {
+    "reload": "Reload the page"
   }
 }
diff --git a/packages/i18n/locales/en/errors.json b/packages/i18n/locales/en/errors.json
index c9c899f..d6945e7 100644
--- a/packages/i18n/locales/en/errors.json
+++ b/packages/i18n/locales/en/errors.json
@@ -3,7 +3,8 @@
     "internal": "Something went wrong on the server. Please try again",
     "bad_request": "Invalid request",
     "not_found": "Not found",
-    "method_not_allowed": "This action is not supported"
+    "method_not_allowed": "This action is not supported",
+    "network": "Cannot reach the server. Check your network"
   },
   "auth": {
     "invalid_credentials": "Wrong username or password",
diff --git a/packages/i18n/locales/ru/admin.json b/packages/i18n/locales/ru/admin.json
new file mode 100644
index 0000000..2464bf1
--- /dev/null
+++ b/packages/i18n/locales/ru/admin.json
@@ -0,0 +1,66 @@
+{
+  "users": {
+    "title": "Пользователи",
+    "subtitle": "Создание пользователей и модераторов, роли, сброс пароля, блокировка",
+    "create": "Создать пользователя",
+    "search": "Имя или логин",
+    "all": "Все",
+    "col_user": "Пользователь",
+    "col_role": "Роль",
+    "col_status": "Статус",
+    "col_last_login": "Был в сети",
+    "status_active": "Активен",
+    "status_blocked": "Заблокирован",
+    "status_must_change": "Ждёт смены пароля",
+    "never": "Ещё не входил",
+    "empty": "Никого не нашли",
+    "more": "Показать ещё",
+    "actions": "Действия с {{username}}",
+    "reset_password": "Сбросить пароль",
+    "block": "Заблокировать",
+    "unblock": "Разблокировать",
+    "make_role": "Сделать: {{role}}",
+    "delete": "Удалить",
+    "delete_confirm": "Удалить {{username}}? Его история и лайки пропадут.",
+    "block_confirm": "Заблокировать {{username}}? Все его сессии завершатся.",
+    "reset_confirm": "Сбросить пароль {{username}}? Все его сессии завершатся.",
+    "confirm": "Подтвердить",
+    "you": "вы"
+  },
+  "create": {
+    "title": "Новый пользователь",
+    "username": "Логин",
+    "username_hint": "Латинские буквы, цифры, «.», «_», «-»",
+    "display_name": "Имя",
+    "role": "Роль",
+    "password_note": "Пароль сгенерирует сервер и покажет один раз.",
+    "submit": "Создать"
+  },
+  "temp_password": {
+    "title": "Временный пароль",
+    "text": "Передайте пароль пользователю {{username}}. Он виден только сейчас; при входе его попросят сменить.",
+    "done": "Готово"
+  },
+  "audit": {
+    "title": "Журнал",
+    "subtitle": "Действия администраторов и модераторов",
+    "col_when": "Когда",
+    "col_who": "Кто",
+    "col_action": "Действие",
+    "col_details": "Подробности",
+    "system": "Система",
+    "empty": "Записей пока нет",
+    "more": "Показать ещё",
+    "actions": {
+      "user.bootstrap_create": "Создан стартовый администратор",
+      "user.bootstrap_credentials": "Заданы учётные данные администратора",
+      "user.create": "Создан пользователь",
+      "user.rename": "Изменено имя",
+      "user.role_change": "Изменена роль",
+      "user.block": "Пользователь заблокирован",
+      "user.unblock": "Пользователь разблокирован",
+      "user.password_reset": "Сброшен пароль",
+      "user.delete": "Пользователь удалён"
+    }
+  }
+}
diff --git a/packages/i18n/locales/ru/auth.json b/packages/i18n/locales/ru/auth.json
new file mode 100644
index 0000000..55d6b50
--- /dev/null
+++ b/packages/i18n/locales/ru/auth.json
@@ -0,0 +1,24 @@
+{
+  "login": {
+    "title": "Вход",
+    "subtitle": "Ваша музыка с вашего сервера",
+    "username": "Логин",
+    "password": "Пароль",
+    "submit": "Войти",
+    "bootstrap_hint": "Первый запуск: войдите как администратор. Пароль задан в BOOTSTRAP_ADMIN_PASSWORD или напечатан в логе сервиса api."
+  },
+  "setup": {
+    "admin_badge": "Первый вход администратора",
+    "admin_title": "Смените логин и пароль",
+    "admin_text": "Без этого шага доступ к серверу закрыт: стартовые данные администратора видны в логах и настройках.",
+    "password_badge": "Пароль сброшен",
+    "password_title": "Задайте новый пароль",
+    "password_text": "Вы вошли по временному паролю. Придумайте свой — временный больше не подойдёт.",
+    "new_username": "Новый логин",
+    "new_password": "Новый пароль",
+    "repeat_password": "Повторите пароль",
+    "min_length": "Не короче {{min}} символов",
+    "submit": "Сохранить и продолжить",
+    "logout": "Выйти"
+  }
+}
diff --git a/packages/i18n/locales/ru/common.json b/packages/i18n/locales/ru/common.json
index 32caed6..5043489 100644
--- a/packages/i18n/locales/ru/common.json
+++ b/packages/i18n/locales/ru/common.json
@@ -17,5 +17,67 @@
     "label": "Язык",
     "ru": "Русский",
     "en": "English"
+  },
+  "nav": {
+    "main": "Навигация",
+    "home": "Главная",
+    "admin": "Админка",
+    "users": "Пользователи",
+    "audit": "Журнал"
+  },
+  "profile": {
+    "menu": "Меню профиля",
+    "settings": "Настройки",
+    "logout": "Выйти"
+  },
+  "roles": {
+    "admin": "Администратор",
+    "moderator": "Модератор",
+    "user": "Пользователь"
+  },
+  "home": {
+    "greeting": "Привет, {{name}}!",
+    "wave": "Моя волна",
+    "wave_soon": "Бесконечная лента под ваш вкус появится, когда сервер подключит библиотеку."
+  },
+  "player": {
+    "empty": "Ничего не играет"
+  },
+  "settings": {
+    "title": "Настройки",
+    "account": "Аккаунт",
+    "display_name": "Отображаемое имя",
+    "save": "Сохранить",
+    "saved": "Сохранено",
+    "appearance": "Внешний вид",
+    "theme": "Тема",
+    "theme_dark": "Тёмная",
+    "theme_light": "Светлая",
+    "theme_system": "Как в системе",
+    "password": "Пароль",
+    "current_password": "Текущий пароль",
+    "new_password": "Новый пароль",
+    "repeat_password": "Повторите пароль",
+    "change_password": "Сменить пароль",
+    "password_changed": "Пароль изменён. Другие устройства вышли из аккаунта.",
+    "sessions": "Устройства",
+    "session_current": "Это устройство",
+    "session_last_used": "Активность: {{date}}",
+    "session_end": "Завершить",
+    "logout_all": "Выйти на всех устройствах"
+  },
+  "form": {
+    "show_password": "Показать пароль",
+    "hide_password": "Скрыть пароль",
+    "passwords_mismatch": "Пароли не совпадают",
+    "required": "Заполните поле",
+    "cancel": "Отмена",
+    "close": "Закрыть",
+    "copy": "Копировать",
+    "copied": "Скопировано"
+  },
+  "loading": "Загрузка…",
+  "route_error": {
+    "reload": "Обновить страницу"
   }
 }
diff --git a/packages/i18n/locales/ru/errors.json b/packages/i18n/locales/ru/errors.json
index 56fd24d..27ff09f 100644
--- a/packages/i18n/locales/ru/errors.json
+++ b/packages/i18n/locales/ru/errors.json
@@ -3,7 +3,8 @@
     "internal": "Что-то пошло не так на сервере. Попробуйте ещё раз",
     "bad_request": "Некорректный запрос",
     "not_found": "Не найдено",
-    "method_not_allowed": "Действие не поддерживается"
+    "method_not_allowed": "Действие не поддерживается",
+    "network": "Нет связи с сервером. Проверьте сеть"
   },
   "auth": {
     "invalid_credentials": "Неверный логин или пароль",
diff --git a/packages/i18n/src/index.ts b/packages/i18n/src/index.ts
index 1447977..e6a473e 100644
--- a/packages/i18n/src/index.ts
+++ b/packages/i18n/src/index.ts
@@ -1,7 +1,11 @@
 import i18next, { type i18n as I18n } from 'i18next';
 
+import enAdmin from '../locales/en/admin.json';
+import enAuth from '../locales/en/auth.json';
 import enCommon from '../locales/en/common.json';
 import enErrors from '../locales/en/errors.json';
+import ruAdmin from '../locales/ru/admin.json';
+import ruAuth from '../locales/ru/auth.json';
 import ruCommon from '../locales/ru/common.json';
 import ruErrors from '../locales/ru/errors.json';
 
@@ -11,8 +15,8 @@ export type Locale = (typeof SUPPORTED_LOCALES)[number];
 export const DEFAULT_LOCALE: Locale = 'en';
 
 export const resources = {
-  ru: { common: ruCommon, errors: ruErrors },
-  en: { common: enCommon, errors: enErrors },
+  ru: { common: ruCommon, auth: ruAuth, admin: ruAdmin, errors: ruErrors },
+  en: { common: enCommon, auth: enAuth, admin: enAdmin, errors: enErrors },
 } as const;
 
 declare module 'i18next' {
@@ -40,7 +44,7 @@ export async function createI18n(locale: Locale): Promise<I18n> {
     fallbackLng: DEFAULT_LOCALE,
     supportedLngs: [...SUPPORTED_LOCALES],
     defaultNS: 'common',
-    ns: ['common', 'errors'],
+    ns: ['common', 'auth', 'admin', 'errors'],
     resources,
     interpolation: { escapeValue: false },
     returnNull: false,
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index e8871c0..5d00294 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -69,6 +69,9 @@ importers:
       '@fontsource/unbounded':
         specifier: ^5.2.6
         version: 5.3.0
+      '@material-symbols/svg-400':
+        specifier: ^0.31.9
+        version: 0.31.9
       '@pipu/api-client':
         specifier: workspace:*
         version: link:../../packages/api-client
@@ -84,6 +87,9 @@ importers:
       '@tanstack/react-query':
         specifier: ^5.80.7
         version: 5.104.4(@types/react@19.3.0)(react@19.3.1)
+      '@tanstack/react-router':
+        specifier: ^1.120.20
+        version: 1.120.20(react-dom@19.3.1(react@19.3.1))(react@19.3.1)
       react:
         specifier: ^19.1.0
         version: 19.3.1
@@ -97,9 +103,15 @@ importers:
       '@testing-library/dom':
         specifier: ^10.4.0
         version: 10.4.2
+      '@testing-library/jest-dom':
+        specifier: ^6.9.1
+        version: 6.9.1
       '@testing-library/react':
         specifier: ^16.3.0
         version: 16.3.3(@testing-library/dom@10.4.2)(@types/react-dom@19.3.0(@types/react@19.3.0))(@types/react@19.3.0)(react-dom@19.3.1(react@19.3.1))(react@19.3.1)
+      '@testing-library/user-event':
+        specifier: ^14.6.1
+        version: 14.6.1(@testing-library/dom@10.4.2)
       '@types/react':
         specifier: ^19.1.8
         version: 19.3.0
@@ -157,6 +169,9 @@ packages:
       graphql:
         optional: true
 
+  '@adobe/css-tools@4.5.0':
+    resolution: {integrity: sha512-6OzddxPio9UiWTCemp4N8cYLV2ZN1ncRnV1cVGtve7dhPOtRkleRyx32GQCYSwDYgaHU3USMm84tNsvKzRCa1Q==}
+
   '@asamuzakjp/css-color@3.2.0':
     resolution: {integrity: sha512-K1A6z8tS3XsmCMM86xoWdn7Fkdn9m6RSVtocUrJYIwZnFVkng/PvkEoWtOWmP+Scc6saYWHWZYbndEEXxl24jw==}
 
@@ -985,6 +1000,9 @@ packages:
   '@jridgewell/trace-mapping@0.3.31':
     resolution: {integrity: sha512-zzNR+SdQSDJzc8joaeP8QQoCQr8NuYx2dIIytl1QeBEZHJ9uW6hebsrYgbz8hJwUQao3TWCMtmfV8Nu1twOLAw==}
 
+  '@material-symbols/svg-400@0.31.9':
+    resolution: {integrity: sha512-LeQrY/qYdRdIlV6ZR+hUQDXjtkDYgP1LGnMQh/Grm6FsXz+6GR2Q+DrotEJjzDnmao/oHygHFGLnkKAR/PM1hQ==}
+
   '@napi-rs/lzma-linux-x64-gnu@1.5.1':
     resolution: {integrity: sha512-oTXEIha4SsuXdTA4Iyskj0kpdx2yVXdhd75c2v3xGrHFfVMsbhTPZU/nMPL4sWKo4pBHm3aucLaqGlF696dTyQ==}
     engines: {node: ^22.20 || ^24.12 || >=25}
@@ -1215,6 +1233,10 @@ packages:
   '@sinonjs/fake-timers@10.3.0':
     resolution: {integrity: sha512-V4BG07kuYSUkTCSBHG8G8TNhM+F19jXFWnQtzj+we8DrkpSBCee9Z3Ms8yiGer/dlmhe35/Xdgyo3/0rQKg7YA==}
 
+  '@tanstack/history@1.120.17':
+    resolution: {integrity: sha512-k07LFI4Qo074IIaWzT/XjD0KlkGx2w1V3fnNtclKx0oAl8z4O9kCh6za+FPEIRe98xLgNFEiddDbJeAYGSlPtw==}
+    engines: {node: '>=12'}
+
   '@tanstack/query-core@5.104.4':
     resolution: {integrity: sha512-nU4Yrb8Sjn0DeVb7PKG9uiepNavys3yoxy1FX0hViY4/P6Ng/mBje2SMl7i9812rtyHKtHyqiaC/td6GkI8StA==}
 
@@ -1227,10 +1249,34 @@ packages:
       '@types/react':
         optional: true
 
+  '@tanstack/react-router@1.120.20':
+    resolution: {integrity: sha512-+zNruUE9NsfGm9cHd22Xs7FRtBrBhDZe94pB69BEIjqjrEPZct6f5VhTV9WQ+bDZ6fRz8tUuxNFAgm/3Lm4AIg==}
+    engines: {node: '>=12'}
+    peerDependencies:
+      react: '>=18.0.0 || >=19.0.0'
+      react-dom: '>=18.0.0 || >=19.0.0'
+
+  '@tanstack/react-store@0.7.7':
+    resolution: {integrity: sha512-qqT0ufegFRDGSof9D/VqaZgjNgp4tRPHZIJq2+QIHkMUtHjaJ0lYrrXjeIUJvjnTbgPfSD1XgOMEt0lmANn6Zg==}
+    peerDependencies:
+      react: ^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0
+      react-dom: ^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0
+
+  '@tanstack/router-core@1.120.19':
+    resolution: {integrity: sha512-5JUVgkxnIM3NxMwzKt0tfz2UopZVxwq6Kl7Rp33zlFJaPjpiRs46VuRjVeAvkpJd6samo1gcH1rWqmnPUmtGcw==}
+    engines: {node: '>=12'}
+
+  '@tanstack/store@0.7.7':
+    resolution: {integrity: sha512-xa6pTan1bcaqYDS9BDpSiS63qa6EoDkPN9RsRaxHuDdVDNntzq3xNwR5YKTU/V3SkSyC9T4YVOPh2zRQN0nhIQ==}
+
   '@testing-library/dom@10.4.2':
     resolution: {integrity: sha512-yzr2S9HyAIdhz2/6qHgbs665Q7PKVcDF05vsOlHPxG1mo36gKVesdYVeDLnXgfjJ03CrKRk08knc6+E/9m8v2Q==}
     engines: {node: '>=18'}
 
+  '@testing-library/jest-dom@6.9.1':
+    resolution: {integrity: sha512-zIcONa+hVtVSSep9UT3jZ5rizo2BsxgyDYU7WFD5eICBE7no3881HGeb/QkGfsJs6JTkY1aQhT7rIPC7e+0nnA==}
+    engines: {node: '>=14', npm: '>=6', yarn: '>=1'}
+
   '@testing-library/react@16.3.3':
     resolution: {integrity: sha512-Uo193NgQbPMz6lrrhtRQQFcMC6Re/ELLFbbuVL30WDlZxlpZf9/lMHTAVxPRLw1q1iu9OJmR1c2BLiENRstdBg==}
     engines: {node: '>=18'}
@@ -1246,6 +1292,12 @@ packages:
       '@types/react-dom':
         optional: true
 
+  '@testing-library/user-event@14.6.1':
+    resolution: {integrity: sha512-vq7fv0rnt+QTXgPxr5Hjc210p6YKq2kmdziLgnsZGgLJ9e6VAShx1pACLuRjd/AS/sr7phAR58OIIpf0LlmQNw==}
+    engines: {node: '>=12', npm: '>=6'}
+    peerDependencies:
+      '@testing-library/dom': '>=7.21.4'
+
   '@types/aria-query@5.0.4':
     resolution: {integrity: sha512-rfT93uj5s0PRL7EzccGMs3brplhcrghnDoV26NqKhCAS1hVo+WdNsPvE/yb6ilfr5hi2MEk6d5EWJTKdxg8jVw==}
 
@@ -1705,6 +1757,9 @@ packages:
     resolution: {integrity: sha512-v1plID3y9r/lPhviJ1wrXpLeyUIGAZ2SHNYTEapm7/8A9nLPoyvVp3RK/EPFqn5kEznyWgYZNsRtYYIWbuG8KA==}
     engines: {node: '>=8'}
 
+  css.escape@1.5.1:
+    resolution: {integrity: sha512-YUifsXXuknHlUsmlgyY0PKzgPOr7/FjCePfHNt0jxm83wHZi44VDMQ7/fGNkjY3/jV1MC+1CmZbaHzugyeRtpg==}
+
   cssstyle@4.6.0:
     resolution: {integrity: sha512-2z+rWdzbbSZv6/rhtvzvqeZQHrBaqgogqt85sqFNbabZOuFbCVFb8kPeEtZjiKkbrm395irpNKiYeFeLiQnFPg==}
     engines: {node: '>=18'}
@@ -1783,6 +1838,9 @@ packages:
   dom-accessibility-api@0.5.16:
     resolution: {integrity: sha512-X7BJ2yElsnOJ30pZF4uIIDfBEVgF4XEBxL9Bxhy6dnrm5hkzqmsWHGTiHqRiITNhMyFLyAiWndIJP7Z1NTteDg==}
 
+  dom-accessibility-api@0.6.3:
+    resolution: {integrity: sha512-7ZgogeTnjuHbo+ct10G9Ffp0mif17idi0IyWNVA/wcwcm7NPOD/WEHVP3n7n3MhXqxoIYm8d6MuZohYWIZ4T3w==}
+
   dotenv-expand@11.0.7:
     resolution: {integrity: sha512-zIHwmZPRshsCdpMDyVsqGmgyP0yT8GAgXUnkdAoJisxvf33k7yO6OuoKmcTGuXPWSsm8Oh88nZicRLA9Y0rUeA==}
     engines: {node: '>=12'}
@@ -2121,6 +2179,10 @@ packages:
     resolution: {integrity: sha512-JmXMZ6wuvDmLiHEml9ykzqO6lwFbof0GG4IkcGaENdCRDDmMVnny7s5HsIgHCbaq0w2MyPhDqkhTUgS2LU2PHA==}
     engines: {node: '>=0.8.19'}
 
+  indent-string@4.0.0:
+    resolution: {integrity: sha512-EdDDZu4A2OyIK7Lr/2zG+w5jmbuk1DVBnEwREQvBzspBJkCEbRa8GxU1lghYcaGJCnRWibjDXlq779X1/y5xwg==}
+    engines: {node: '>=8'}
+
   index-to-position@1.2.0:
     resolution: {integrity: sha512-Yg7+ztRkqslMAS2iFaU+Oa4KTSidr63OsFGlOrJoW981kIYO3CGCS3wA95P1mUi/IVSJkn0D479KTJpVpvFNuw==}
     engines: {node: '>=18'}
@@ -2487,6 +2549,10 @@ packages:
     resolution: {integrity: sha512-jf84uxzwiuiIVKiOLpfYk7N46TSy8ubTonmneY9vrpHNAnp0QBt2BxWV9dO3/j+BoVAb+a5G6YDPW3M5HOdMWQ==}
     engines: {node: '>=4'}
 
+  min-indent@1.0.1:
+    resolution: {integrity: sha512-I9jwMn07Sy/IwOj3zVkVik2JTvgpaykDZEigL6Rx6N9LbMywwUSMtxET+7lVoDLLd3O3IXwJwvuuns8UB/HeAg==}
+    engines: {node: '>=4'}
+
   minimatch@3.1.5:
     resolution: {integrity: sha512-VgjWUsnnT6n+NUk6eZq77zeFdpW2LWDzP6zFGrCbHXiYNul5Dzqk2HHQ5uFH2DNW5Xbp8+jVzaeNt94ssEEl4w==}
 
@@ -2838,6 +2904,10 @@ packages:
     resolution: {integrity: sha512-QNhWdt7nrgVWWQG58QuGsAR3jv3Hbe4mb4vz7w2csnHavciZJgda1CPNaldF6eVxv90ud3jUXpKlHL69gO38yw==}
     engines: {node: '>=0.10.0'}
 
+  redent@3.0.0:
+    resolution: {integrity: sha512-6tDA8g98We0zd0GvVeMT9arEOnTw9qM03L9cJXaCjrip1OO764RDBLBfrB4cwzNGDj5OA5ioymC9GkizgWJDUg==}
+    engines: {node: '>=8'}
+
   regenerate-unicode-properties@10.3.0:
     resolution: {integrity: sha512-9ns8odR8e9q3otKeHj3DE80jZYKg6zVeZKE+zQmRKXFoVUcuiTGeO6iusDhPRoIQQPVPRvH+SfBhrTud4eczuw==}
     engines: {node: '>=4'}
@@ -3058,6 +3128,10 @@ packages:
     resolution: {integrity: sha512-yDPMNjp4WyfYBkHnjIRLfca1i6KMyGCtsVgoKe/z1+6vukgaENdgGBZt+ZmKPc4gavvEZ5OgHfHdrazhgNyG7w==}
     engines: {node: '>=12'}
 
+  strip-indent@3.0.0:
+    resolution: {integrity: sha512-laJTa3Jb+VQpaC6DseHhF7dXVqHTfJPCRDaEbid/drOhgitgYku/letMUqOXFoWV0zIIUbjpdH2t+tYj4bQMRQ==}
+    engines: {node: '>=8'}
+
   strip-json-comments@2.0.1:
     resolution: {integrity: sha512-4gB8na07fecVVkOI6Rs4e7T6NOTki5EmL7TUduTs6bu3EdnSycntVJ4re8kgZA+wx9IueI2Y11bfbgwtzuE0KQ==}
     engines: {node: '>=0.10.0'}
@@ -3131,6 +3205,12 @@ packages:
   throat@5.0.0:
     resolution: {integrity: sha512-fcwX4mndzpLQKBS1DVYhGAcYaYt7vsHNIvQV+WXMvnow5cgjPphq5CaayLaGsjRdSCKZFNGt7/GYAuXaNOiYCA==}
 
+  tiny-invariant@1.3.3:
+    resolution: {integrity: sha512-+FbBPE1o9QAYvviau/qC5SE3caw21q3xkvWKBtja5vgqOWIHHJ3ioaq1VPfn/Szqctz2bU/oYeKd9/z5BL+PVg==}
+
+  tiny-warning@1.0.3:
+    resolution: {integrity: sha512-lBN9zLN/oAf68o3zNXYrdCt1kP8WsiGW8Oo2ka41b2IM5JL/S1CTyX1rW0mb/zSuJun0ZUrDxx4sqvYS2FWzPA==}
+
   tinybench@2.9.0:
     resolution: {integrity: sha512-0+DUvqWMValLmha6lr4kD8iAMK1HzV0/aKnCtWb9v9641TnP/MFb7Pc2bxoxQjTXAErryXVgUOfv2YqNllqGeg==}
 
@@ -3277,6 +3357,11 @@ packages:
   uri-js-replace@1.0.1:
     resolution: {integrity: sha512-W+C9NWNLFOoBI2QWDp4UT9pv65r2w5Cx+3sTYFvtMdDBxkKt1syCqsUdSFAChbEe1uK5TfS04wt/nGwmaeIQ0g==}
 
+  use-sync-external-store@1.7.0:
+    resolution: {integrity: sha512-6L+EeigHMQhdaIPNIFUKwfWJSwWFQ8gJbJ2DLOs5sDIegTwR9fRxvnM3uciHKjIZhFz+KAv2emhWMRvDmMcY8A==}
+    peerDependencies:
+      react: ^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0
+
   utils-merge@1.0.1:
     resolution: {integrity: sha512-pMZTvIkT1d+TFGvDOqodOclx0QWkkgi6Tdoa8gC8ffGAAqz9pzPTZWAybbsHHoED/ztMtkv/VoYTYyShUn81hA==}
     engines: {node: '>= 0.4.0'}
@@ -3528,6 +3613,8 @@ snapshots:
 
   '@0no-co/graphql.web@1.3.4': {}
 
+  '@adobe/css-tools@4.5.0': {}
+
   '@asamuzakjp/css-color@3.2.0':
     dependencies:
       '@csstools/css-calc': 2.1.4(@csstools/css-parser-algorithms@3.0.5(@csstools/css-tokenizer@3.0.4))(@csstools/css-tokenizer@3.0.4)
@@ -4590,6 +4677,8 @@ snapshots:
       '@jridgewell/resolve-uri': 3.1.2
       '@jridgewell/sourcemap-codec': 1.6.0
 
+  '@material-symbols/svg-400@0.31.9': {}
+
   '@napi-rs/lzma-linux-x64-gnu@1.5.1':
     optional: true
 
@@ -4826,6 +4915,8 @@ snapshots:
     dependencies:
       '@sinonjs/commons': 3.0.1
 
+  '@tanstack/history@1.120.17': {}
+
   '@tanstack/query-core@5.104.4': {}
 
   '@tanstack/react-query@5.104.4(@types/react@19.3.0)(react@19.3.1)':
@@ -4835,6 +4926,32 @@ snapshots:
     optionalDependencies:
       '@types/react': 19.3.0
 
+  '@tanstack/react-router@1.120.20(react-dom@19.3.1(react@19.3.1))(react@19.3.1)':
+    dependencies:
+      '@tanstack/history': 1.120.17
+      '@tanstack/react-store': 0.7.7(react-dom@19.3.1(react@19.3.1))(react@19.3.1)
+      '@tanstack/router-core': 1.120.19
+      jsesc: 3.1.0
+      react: 19.3.1
+      react-dom: 19.3.1(react@19.3.1)
+      tiny-invariant: 1.3.3
+      tiny-warning: 1.0.3
+
+  '@tanstack/react-store@0.7.7(react-dom@19.3.1(react@19.3.1))(react@19.3.1)':
+    dependencies:
+      '@tanstack/store': 0.7.7
+      react: 19.3.1
+      react-dom: 19.3.1(react@19.3.1)
+      use-sync-external-store: 1.7.0(react@19.3.1)
+
+  '@tanstack/router-core@1.120.19':
+    dependencies:
+      '@tanstack/history': 1.120.17
+      '@tanstack/store': 0.7.7
+      tiny-invariant: 1.3.3
+
+  '@tanstack/store@0.7.7': {}
+
   '@testing-library/dom@10.4.2':
     dependencies:
       '@babel/code-frame': 7.29.7
@@ -4846,6 +4963,15 @@ snapshots:
       picocolors: 1.1.1
       pretty-format: 27.5.1
 
+  '@testing-library/jest-dom@6.9.1':
+    dependencies:
+      '@adobe/css-tools': 4.5.0
+      aria-query: 5.3.0
+      css.escape: 1.5.1
+      dom-accessibility-api: 0.6.3
+      picocolors: 1.1.1
+      redent: 3.0.0
+
   '@testing-library/react@16.3.3(@testing-library/dom@10.4.2)(@types/react-dom@19.3.0(@types/react@19.3.0))(@types/react@19.3.0)(react-dom@19.3.1(react@19.3.1))(react@19.3.1)':
     dependencies:
       '@babel/runtime': 7.29.10
@@ -4856,6 +4982,10 @@ snapshots:
       '@types/react': 19.3.0
       '@types/react-dom': 19.3.0(@types/react@19.3.0)
 
+  '@testing-library/user-event@14.6.1(@testing-library/dom@10.4.2)':
+    dependencies:
+      '@testing-library/dom': 10.4.2
+
   '@types/aria-query@5.0.4': {}
 
   '@types/babel__core@7.20.5':
@@ -5395,6 +5525,8 @@ snapshots:
 
   crypto-random-string@2.0.0: {}
 
+  css.escape@1.5.1: {}
+
   cssstyle@4.6.0:
     dependencies:
       '@asamuzakjp/css-color': 3.2.0
@@ -5445,6 +5577,8 @@ snapshots:
 
   dom-accessibility-api@0.5.16: {}
 
+  dom-accessibility-api@0.6.3: {}
+
   dotenv-expand@11.0.7:
     dependencies:
       dotenv: 16.4.7
@@ -5792,6 +5926,8 @@ snapshots:
 
   imurmurhash@0.1.4: {}
 
+  indent-string@4.0.0: {}
+
   index-to-position@1.2.0: {}
 
   inflight@1.0.6:
@@ -6269,6 +6405,8 @@ snapshots:
 
   mimic-fn@1.2.0: {}
 
+  min-indent@1.0.1: {}
+
   minimatch@3.1.5:
     dependencies:
       brace-expansion: 1.1.21
@@ -6625,6 +6763,11 @@ snapshots:
 
   react@19.3.1: {}
 
+  redent@3.0.0:
+    dependencies:
+      indent-string: 4.0.0
+      strip-indent: 3.0.0
+
   regenerate-unicode-properties@10.3.0:
     dependencies:
       regenerate: 1.5.0
@@ -6852,6 +6995,10 @@ snapshots:
     dependencies:
       ansi-regex: 6.4.0
 
+  strip-indent@3.0.0:
+    dependencies:
+      min-indent: 1.0.1
+
   strip-json-comments@2.0.1: {}
 
   strip-literal@3.1.0:
@@ -6931,6 +7078,10 @@ snapshots:
 
   throat@5.0.0: {}
 
+  tiny-invariant@1.3.3: {}
+
+  tiny-warning@1.0.3: {}
+
   tinybench@2.9.0: {}
 
   tinyexec@0.3.2: {}
@@ -7036,6 +7187,10 @@ snapshots:
 
   uri-js-replace@1.0.1: {}
 
+  use-sync-external-store@1.7.0(react@19.3.1):
+    dependencies:
+      react: 19.3.1
+
   utils-merge@1.0.1: {}
 
   uuid@7.0.3: {}