diff --git a/src/app.py b/src/app.py
index 3f78311..3072561 100644
--- a/src/app.py
+++ b/src/app.py
@@ -585,6 +585,11 @@ from src.api.api_v1 import api_v1_bp, init_api_v1_helpers
from src.api.audit import audit_bp
from src.api.docs import docs_bp
+# Marketing redesign 2026 blueprints (Phase 1: B-1.2)
+from src.marketing import marketing_bp
+from src.billing import billing_bp
+from src.legal import legal_bp
+
# Database initialization (extracted to src/init_db.py)
from src.init_db import initialize_database
with app.app_context():
@@ -632,6 +637,14 @@ csrf.exempt(api_v1_bp) # API v1 uses token auth, not CSRF
app.register_blueprint(audit_bp)
app.register_blueprint(docs_bp)
+# Marketing redesign 2026 blueprints (Phase 1: B-1.2)
+# - marketing_bp at "/" (placeholder; coexists with recordings_bp.index, resolved in B-1.3)
+# - billing_bp at /checkout/* (routes added in B-2.7 and B-2.8)
+# - legal_bp at /legal/* (routes added in B-2.9)
+app.register_blueprint(marketing_bp)
+app.register_blueprint(billing_bp)
+app.register_blueprint(legal_bp)
+
# File monitor and scheduler initialization functions below
# Startup functions (extracted to src/config/startup.py)
diff --git a/src/billing/__init__.py b/src/billing/__init__.py
new file mode 100644
index 0000000..198bed2
--- /dev/null
+++ b/src/billing/__init__.py
@@ -0,0 +1,11 @@
+"""Billing blueprint - Stripe Checkout, webhook, subscription management.
+
+Mounted at /checkout/* prefix for the customer-facing checkout flow. The
+/webhooks/stripe route (added in B-2.8) bypasses the prefix and is also
+csrf-exempted.
+
+Routes added in Tasks B-2.7 (checkout) and B-2.8 (webhook).
+"""
+from flask import Blueprint
+
+billing_bp = Blueprint('billing', __name__, url_prefix='/checkout')
diff --git a/src/legal/__init__.py b/src/legal/__init__.py
new file mode 100644
index 0000000..b7a7a05
--- /dev/null
+++ b/src/legal/__init__.py
@@ -0,0 +1,11 @@
+"""Legal blueprint - Conditions, Confidentialite (Loi 25), Cookies, Remboursement,
+Accessibilite, Mentions.
+
+Mounted at /legal/* prefix. Content rendered from markdown files in
+src/legal/content/ (added in Task B-2.9).
+
+Routes added in Task B-2.9.
+"""
+from flask import Blueprint
+
+legal_bp = Blueprint('legal', __name__, url_prefix='/legal')
diff --git a/src/marketing/__init__.py b/src/marketing/__init__.py
new file mode 100644
index 0000000..bfdc56e
--- /dev/null
+++ b/src/marketing/__init__.py
@@ -0,0 +1,11 @@
+"""Marketing blueprint - landing pages, public content, SEO/GEO assets.
+
+Mounted at root "/" (no url_prefix). Coexists with the legacy /api/* and /app/*
+blueprints. Routes added incrementally in Phase 2 (Tasks A-2.x).
+"""
+from flask import Blueprint
+
+marketing_bp = Blueprint('marketing', __name__)
+
+# Import routes module so it registers route handlers via decorators
+from . import routes # noqa: E402,F401
diff --git a/src/marketing/routes.py b/src/marketing/routes.py
new file mode 100644
index 0000000..4ae1429
--- /dev/null
+++ b/src/marketing/routes.py
@@ -0,0 +1,20 @@
+"""Marketing routes - minimal Phase 1 placeholder.
+
+Real templates and content arrive in Tasks A-2.1 through A-2.8.
+"""
+from flask import Response
+
+from . import marketing_bp
+
+
+@marketing_bp.route('/')
+def landing():
+ """Placeholder root route.
+
+ Phase 1: returns a minimal HTML response so the route exists for tests.
+ Phase 2 (A-2.1): replaced with proper template render.
+ """
+ return Response(
+ 'DictIA marketing - Phase 1 bootstrap
',
+ mimetype='text/html'
+ )
diff --git a/tests/test_blueprint_registration.py b/tests/test_blueprint_registration.py
new file mode 100644
index 0000000..75e290b
--- /dev/null
+++ b/tests/test_blueprint_registration.py
@@ -0,0 +1,66 @@
+"""Tests for Phase 1 blueprint registration (B-1.2).
+
+Verifies that the 3 new marketing-redesign blueprints (marketing, billing,
+legal) register correctly on the global Flask app, in addition to the
+existing api/auth/recordings/etc. blueprints.
+
+Pattern: no conftest.py, env vars set at module load time, then import
+src.app.app directly. Mirrors the convention used by tests/test_audit.py.
+"""
+
+import os
+import sys
+
+# Add the parent directory to the path to import app (mirrors test_audit.py)
+sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
+os.environ.setdefault('SQLALCHEMY_DATABASE_URI', 'sqlite:///:memory:')
+os.environ.setdefault('SECRET_KEY', 'test-secret-key-for-blueprint-registration')
+
+from src.app import app # noqa: E402
+
+
+def test_marketing_blueprint_registered():
+ assert 'marketing' in app.blueprints, (
+ f"Expected marketing blueprint, found: {list(app.blueprints.keys())}"
+ )
+
+
+def test_billing_blueprint_registered():
+ assert 'billing' in app.blueprints, (
+ f"Expected billing blueprint, found: {list(app.blueprints.keys())}"
+ )
+
+
+def test_legal_blueprint_registered():
+ assert 'legal' in app.blueprints, (
+ f"Expected legal blueprint, found: {list(app.blueprints.keys())}"
+ )
+
+
+def test_marketing_landing_route_exists():
+ """The marketing blueprint should expose at least a placeholder root route."""
+ rules = [str(r) for r in app.url_map.iter_rules() if r.endpoint.startswith('marketing.')]
+ assert any('/' in r for r in rules), (
+ f"Expected marketing blueprint to have a route, found: {rules}"
+ )
+
+
+def test_legal_blueprint_has_url_prefix():
+ """Legal blueprint should be mounted at /legal/* prefix."""
+ rules = [str(r) for r in app.url_map.iter_rules() if r.endpoint.startswith('legal.')]
+ assert all('/legal' in r for r in rules), (
+ f"Expected /legal/ prefix on all legal routes, found: {rules}"
+ )
+
+
+def test_billing_blueprint_has_url_prefix():
+ """Billing blueprint should be mounted at /checkout/* prefix.
+
+ Phase 1 minimum: blueprint is registered but may have no routes yet.
+ Routes added in B-2.7 (checkout) and B-2.8 (webhook).
+ """
+ rules = [str(r) for r in app.url_map.iter_rules() if r.endpoint.startswith('billing.')]
+ # Allow billing routes that don't start with /checkout (e.g. /webhooks/stripe added later)
+ # but at least placeholder /checkout/ route should exist
+ assert len(rules) >= 0 # Phase 1 minimum: blueprint registered, routes added in B-2.7