diff --git a/package.json b/package.json
index e39e3fc..3a5b7c3 100644
--- a/package.json
+++ b/package.json
@@ -13,6 +13,7 @@
   },
   "dependencies": {
     "bcryptjs": "^2.4.3",
+    "cookie-parser": "^1.4.7",
     "connect-pg-simple": "^10.0.0",
     "ejs": "^3.1.10",
     "express": "^4.21.2",
diff --git a/src/middleware/cookieConsent.js b/src/middleware/cookieConsent.js
new file mode 100644
index 0000000..4fb9a79
--- /dev/null
+++ b/src/middleware/cookieConsent.js
@@ -0,0 +1,48 @@
+const CONSENT_COOKIE = 'cookie_consent';
+const CONSENT_VALUE = 'accepted';
+const CONSENT_MAX_AGE_MS = 365 * 24 * 60 * 60 * 1000;
+
+function hasCookieConsent(req) {
+  return req.cookies?.[CONSENT_COOKIE] === CONSENT_VALUE;
+}
+
+function loadCookieConsent(req, res, next) {
+  res.locals.cookieConsent = hasCookieConsent(req);
+  res.locals.returnTo = req.originalUrl;
+  next();
+}
+
+function requireCookieConsent(req, res, next) {
+  if (hasCookieConsent(req)) {
+    return next();
+  }
+
+  if (req.method === 'GET') {
+    return res.status(403).render('cookies-required', {
+      title: 'Согласие на cookies',
+      returnTo: req.originalUrl,
+    });
+  }
+
+  return res.redirect(
+    '/?error=' + encodeURIComponent('Примите согласие на использование cookies')
+  );
+}
+
+function setConsentCookie(res, isProduction) {
+  res.cookie(CONSENT_COOKIE, CONSENT_VALUE, {
+    maxAge: CONSENT_MAX_AGE_MS,
+    httpOnly: true,
+    sameSite: 'lax',
+    secure: isProduction,
+    path: '/',
+  });
+}
+
+module.exports = {
+  CONSENT_COOKIE,
+  hasCookieConsent,
+  loadCookieConsent,
+  requireCookieConsent,
+  setConsentCookie,
+};
diff --git a/src/public/css/style.css b/src/public/css/style.css
index f846193..b8f0386 100644
--- a/src/public/css/style.css
+++ b/src/public/css/style.css
@@ -730,3 +730,70 @@ a:hover {
 .profile-dl dd {
   margin: 0;
 }
+
+.cookie-banner {
+  position: fixed;
+  bottom: 0;
+  left: 0;
+  right: 0;
+  z-index: 1000;
+  background: var(--surface);
+  border-top: 1px solid var(--border);
+  box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.35);
+  padding: 1rem 0;
+}
+
+.cookie-banner__inner {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  justify-content: space-between;
+  gap: 1rem;
+}
+
+.cookie-banner__text {
+  flex: 1;
+  min-width: 240px;
+}
+
+.cookie-banner__text p {
+  margin: 0 0 0.35rem;
+}
+
+.cookie-banner__actions {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 0.5rem;
+  align-items: center;
+}
+
+.nav__link--disabled {
+  color: var(--muted);
+  opacity: 0.6;
+  cursor: not-allowed;
+  font-size: 0.9rem;
+}
+
+.cookies-required {
+  max-width: 520px;
+  margin: 2rem auto;
+}
+
+.cookies-required h1 {
+  margin-top: 0;
+}
+
+.legal-page {
+  max-width: 640px;
+  padding: 1.5rem;
+  margin: 0 auto 2rem;
+}
+
+.legal-page h2 {
+  font-size: 1rem;
+  margin: 1.25rem 0 0.5rem;
+}
+
+body:has(.cookie-banner) .main {
+  padding-bottom: 7rem;
+}
diff --git a/src/routes/account.js b/src/routes/account.js
index 6e19568..8521b24 100644
--- a/src/routes/account.js
+++ b/src/routes/account.js
@@ -3,11 +3,14 @@ const bcrypt = require('bcryptjs');
 const { query, formatPrice } = require('../db');
 const { getCart, cartCount } = require('../cart');
 const { requireAuth } = require('../middleware/auth');
+const { requireCookieConsent } = require('../middleware/cookieConsent');
 const { ROLE_LABELS } = require('../constants/roles');
 const { asyncHandler } = require('../utils/asyncHandler');
 
 const router = express.Router();
 
+router.use(requireCookieConsent);
+
 router.use((req, res, next) => {
   const cart = getCart(req);
   res.locals.cartCount = cartCount(cart);
diff --git a/src/routes/auth.js b/src/routes/auth.js
index 8e4fc74..4d7adc6 100644
--- a/src/routes/auth.js
+++ b/src/routes/auth.js
@@ -3,6 +3,7 @@ const bcrypt = require('bcryptjs');
 const { query, formatPrice } = require('../db');
 const { getCart, cartCount } = require('../cart');
 const { requireAuth } = require('../middleware/auth');
+const { requireCookieConsent } = require('../middleware/cookieConsent');
 const { ROLES } = require('../constants/roles');
 const { asyncHandler } = require('../utils/asyncHandler');
 
@@ -15,13 +16,14 @@ router.use((req, res, next) => {
   next();
 });
 
-router.get('/register', (req, res) => {
+router.get('/register', requireCookieConsent, (req, res) => {
   if (req.session.userId) return res.redirect('/account');
   res.render('register', { title: 'Регистрация', error: null, values: {} });
 });
 
 router.post(
   '/register',
+  requireCookieConsent,
   asyncHandler(async (req, res) => {
     const { name, email, password, password2 } = req.body;
     const values = { name, email };
@@ -70,7 +72,7 @@ router.post(
   })
 );
 
-router.get('/login', (req, res) => {
+router.get('/login', requireCookieConsent, (req, res) => {
   if (req.session.userId) return res.redirect('/account');
   res.render('login', {
     title: 'Вход',
@@ -82,6 +84,7 @@ router.get('/login', (req, res) => {
 
 router.post(
   '/login',
+  requireCookieConsent,
   asyncHandler(async (req, res) => {
     const { email, password } = req.body;
     const next = req.body.next || '/';
diff --git a/src/routes/cookies.js b/src/routes/cookies.js
new file mode 100644
index 0000000..4404876
--- /dev/null
+++ b/src/routes/cookies.js
@@ -0,0 +1,24 @@
+const express = require('express');
+const { setConsentCookie } = require('../middleware/cookieConsent');
+
+const router = express.Router();
+const isProduction = process.env.NODE_ENV === 'production';
+
+router.get('/policy', (req, res) => {
+  res.render('cookies-policy', {
+    title: 'Политика cookies',
+    cookieConsent: res.locals.cookieConsent,
+  });
+});
+
+router.post('/accept', (req, res) => {
+  setConsentCookie(res, isProduction);
+  const returnTo = req.body.return_to || req.query.return_to || '/';
+  const safe =
+    typeof returnTo === 'string' && returnTo.startsWith('/') && !returnTo.startsWith('//')
+      ? returnTo
+      : '/';
+  res.redirect(safe);
+});
+
+module.exports = router;
diff --git a/src/routes/shop.js b/src/routes/shop.js
index 1f43a43..52b0cc1 100644
--- a/src/routes/shop.js
+++ b/src/routes/shop.js
@@ -2,6 +2,7 @@ const express = require('express');
 const { query, pool, formatPrice } = require('../db');
 const { getCart, cartCount, cartItems, cartTotal } = require('../cart');
 const { requireAuth } = require('../middleware/auth');
+const { requireCookieConsent } = require('../middleware/cookieConsent');
 const { asyncHandler } = require('../utils/asyncHandler');
 
 const router = express.Router();
@@ -155,6 +156,7 @@ router.post('/cart/remove/:id', (req, res) => {
 
 router.get(
   '/checkout',
+  requireCookieConsent,
   requireAuth,
   asyncHandler(async (req, res) => {
     const cart = getCart(req);
@@ -174,6 +176,7 @@ router.get(
 
 router.post(
   '/checkout',
+  requireCookieConsent,
   requireAuth,
   asyncHandler(async (req, res) => {
     const cart = getCart(req);
@@ -249,6 +252,7 @@ router.post(
 
 router.get(
   '/orders',
+  requireCookieConsent,
   requireAuth,
   asyncHandler(async (req, res) => {
     const { rows: orders } = await query(
@@ -264,6 +268,7 @@ router.get(
 
 router.get(
   '/orders/:id',
+  requireCookieConsent,
   requireAuth,
   asyncHandler(async (req, res) => {
     const { rows } = await query(
diff --git a/src/server.js b/src/server.js
index cc1f2a7..91e1004 100644
--- a/src/server.js
+++ b/src/server.js
@@ -1,5 +1,6 @@
 const path = require('path');
 const express = require('express');
+const cookieParser = require('cookie-parser');
 const session = require('express-session');
 const pgSession = require('connect-pg-simple')(session);
 
@@ -7,11 +8,13 @@ const { pool, initSchema, checkConnection } = require('./db');
 const { runSeed } = require('./seed');
 const { seedAdmin } = require('./seed-admin');
 const { loadUser } = require('./middleware/auth');
+const { loadCookieConsent } = require('./middleware/cookieConsent');
 const healthRoutes = require('./routes/health');
 const shopRoutes = require('./routes/shop');
 const authRoutes = require('./routes/auth');
 const accountRoutes = require('./routes/account');
 const adminRoutes = require('./routes/admin');
+const cookiesRoutes = require('./routes/cookies');
 
 const PORT = process.env.PORT || 3000;
 const HOST = process.env.HOST || '0.0.0.0';
@@ -35,6 +38,7 @@ async function start() {
   app.use(healthRoutes);
   app.use(express.static(path.join(__dirname, 'public')));
   app.use(express.urlencoded({ extended: true }));
+  app.use(cookieParser());
 
   app.use(
     session({
@@ -55,7 +59,9 @@ async function start() {
     })
   );
 
+  app.use(loadCookieConsent);
   app.use(loadUser);
+  app.use('/cookies', cookiesRoutes);
   app.use('/', shopRoutes);
   app.use('/', authRoutes);
   app.use('/account', accountRoutes);
diff --git a/src/views/cookies-policy.ejs b/src/views/cookies-policy.ejs
new file mode 100644
index 0000000..1f325ba
--- /dev/null
+++ b/src/views/cookies-policy.ejs
@@ -0,0 +1,24 @@
+<%- include('partials/layout-start') %>
+
+<article class="legal-page card">
+  <h1>Политика использования cookies</h1>
+
+  <h2>Что такое cookies</h2>
+  <p>Cookies — небольшие файлы, которые сайт сохраняет в браузере для корректной работы сервиса.</p>
+
+  <h2>Какие cookies мы используем</h2>
+  <ul>
+    <li><strong>cookie_consent</strong> — запоминает ваш выбор (принятие политики), срок до 1 года.</li>
+    <li><strong>connect.sid</strong> — сессия: корзина, вход в аккаунт, безопасность. Удаляется после выхода или по истечении срока.</li>
+  </ul>
+
+  <h2>Без согласия</h2>
+  <p>Вы можете просматривать каталог. Вход, регистрация и личный кабинет недоступны до нажатия «Принимаю».</p>
+
+  <h2>Управление</h2>
+  <p>Вы можете удалить cookies в настройках браузера. После этого потребуется снова принять политику и войти в аккаунт.</p>
+
+  <p><a href="/">← На главную</a></p>
+</article>
+
+<%- include('partials/layout-end') %>
diff --git a/src/views/cookies-required.ejs b/src/views/cookies-required.ejs
new file mode 100644
index 0000000..fecc923
--- /dev/null
+++ b/src/views/cookies-required.ejs
@@ -0,0 +1,15 @@
+<%- include('partials/layout-start', { returnTo: returnTo }) %>
+
+<div class="cookies-required">
+  <h1>Согласие на cookies</h1>
+  <p>Для этой страницы (вход, регистрация, личный кабинет) необходимо принять использование cookies.</p>
+  <p class="muted">Мы сохраняем только технические cookies для сессии и безопасности.</p>
+  <form action="/cookies/accept" method="post" class="cookie-banner__actions" style="margin-top:1rem">
+    <input type="hidden" name="return_to" value="<%= returnTo %>">
+    <button type="submit" class="btn btn--primary btn--lg">Принимаю cookies</button>
+    <a href="/" class="btn btn--ghost">На главную</a>
+  </form>
+  <p style="margin-top:1rem"><a href="/cookies/policy">Политика cookies</a></p>
+</div>
+
+<%- include('partials/layout-end') %>
diff --git a/src/views/partials/cookie-banner.ejs b/src/views/partials/cookie-banner.ejs
new file mode 100644
index 0000000..55ba714
--- /dev/null
+++ b/src/views/partials/cookie-banner.ejs
@@ -0,0 +1,18 @@
+<% if (!cookieConsent) { %>
+<div class="cookie-banner" role="dialog" aria-labelledby="cookie-banner-title" aria-live="polite">
+  <div class="cookie-banner__inner container">
+    <div class="cookie-banner__text">
+      <p id="cookie-banner-title"><strong>Мы используем cookies</strong></p>
+      <p class="muted">
+        Для входа, регистрации и личного кабинета нужны технические cookies (сессия).
+        Продолжая без согласия, каталог доступен; авторизация и регистрация — нет.
+        <a href="/cookies/policy">Подробнее</a>
+      </p>
+    </div>
+    <form action="/cookies/accept" method="post" class="cookie-banner__actions">
+      <input type="hidden" name="return_to" value="<%= typeof returnTo !== 'undefined' ? returnTo : '/' %>">
+      <button type="submit" class="btn btn--primary">Принимаю</button>
+    </form>
+  </div>
+</div>
+<% } %>
diff --git a/src/views/partials/layout-end.ejs b/src/views/partials/layout-end.ejs
index b0e1e18..d93baa4 100644
--- a/src/views/partials/layout-end.ejs
+++ b/src/views/partials/layout-end.ejs
@@ -1,8 +1,9 @@
   </main>
   <footer class="footer">
     <div class="container">
-      <p>&copy; <%= new Date().getFullYear() %> Shop — локальный интернет-магазин на Node.js + SQLite</p>
+      <p>&copy; <%= new Date().getFullYear() %> Shop · <a href="/cookies/policy">Cookies</a></p>
     </div>
   </footer>
+  <%- include('cookie-banner') %>
 </body>
 </html>
diff --git a/src/views/partials/layout-start.ejs b/src/views/partials/layout-start.ejs
index 52a6880..89900df 100644
--- a/src/views/partials/layout-start.ejs
+++ b/src/views/partials/layout-start.ejs
@@ -30,9 +30,12 @@
           <form action="/logout" method="post" class="inline-form">
             <button type="submit" class="btn btn--ghost btn--sm">Выйти</button>
           </form>
-        <% } else { %>
+        <% } else if (cookieConsent) { %>
           <a href="/login" class="nav__link">Вход</a>
           <a href="/register" class="btn btn--primary btn--sm">Регистрация</a>
+        <% } else { %>
+          <span class="nav__link nav__link--disabled" title="Примите cookies">Вход</span>
+          <span class="nav__link nav__link--disabled" title="Примите cookies">Регистрация</span>
         <% } %>
       </nav>
     </div>