diff --git a/lms/www/eduvia/sso/mock.py b/lms/www/eduvia/sso/mock.py
new file mode 100644
index 00000000..5838ec1a
--- /dev/null
+++ b/lms/www/eduvia/sso/mock.py
@@ -0,0 +1,78 @@
+import time
+import uuid
+from datetime import datetime, timedelta, timezone
+
+import frappe
+
+try:
+    import jwt  # PyJWT
+except Exception:
+    jwt = None
+
+
+def _now_utc():
+    return datetime.now(timezone.utc)
+
+
+def get_context(context):
+    conf = frappe.get_conf()
+
+    if not conf.get("eduvia_sso_mock_enabled"):
+        frappe.throw("Mock désactivé. Ajoutez eduvia_sso_mock_enabled: 1 dans site_config.json")
+
+    if jwt is None:
+        frappe.throw("PyJWT manquant. Installez-le: bench pip install PyJWT")
+
+    shared_secret = conf.get("eduvia_sso_shared_secret")
+    if not shared_secret:
+        frappe.throw("Ajoutez eduvia_sso_shared_secret dans site_config.json")
+
+    algorithm = conf.get("eduvia_sso_algorithm", "HS256")
+    cookie_name = conf.get("eduvia_sso_cookie_name", "eduvia_sso")
+    # Optionnel: mets "lms.localhost" en dev HTTP, ou ".eduvia.app" en prod HTTPS
+    cookie_domain = conf.get("eduvia_sso_cookie_domain")
+    cookie_path = conf.get("eduvia_sso_cookie_path", "/")
+    cookie_ttl_seconds = int(conf.get("eduvia_sso_cookie_ttl_seconds", 120))
+    issuer = conf.get("eduvia_sso_issuer", "eduvia")
+    audience = conf.get("eduvia_sso_audience", "lms-eduvia")
+
+    user_email = frappe.form_dict.get("email") or "demo.user@eduvia.local"
+    return_url = frappe.form_dict.get("return") or "/"
+
+    now = _now_utc()
+    expires = now + timedelta(seconds=cookie_ttl_seconds)
+    claims = {
+        "iss": issuer,
+        "aud": audience,
+        "sub": user_email,
+        "email": user_email,
+        "iat": int(now.timestamp()),
+        "exp": int(expires.timestamp()),
+        "jti": str(uuid.uuid4()),
+    }
+
+    token = jwt.encode(claims, shared_secret, algorithm=algorithm)
+
+    is_https = getattr(getattr(frappe, "request", None), "scheme", "") == "https"
+    default_secure = 1 if is_https else 0
+    secure_flag = bool(int(conf.get("eduvia_sso_cookie_secure", default_secure)))
+
+    # Set the cookie
+    cookies = frappe.local.response.setdefault("cookie", {})
+    cookie = {
+        "value": token,
+        "path": cookie_path,
+        "secure": False, # change to True for production
+        "httponly": True,
+        "samesite": "Lax",
+        "max_age": cookie_ttl_seconds,
+        "expires": int(time.time()) + cookie_ttl_seconds,
+    }
+    if cookie_domain:
+        cookie["domain"] = cookie_domain  # otherwise host-only
+
+    cookies[cookie_name] = cookie
+
+    # Redirect to the original page
+    frappe.local.flags.redirect_location = return_url
+    raise frappe.Redirect
\ No newline at end of file
diff --git a/lms/www/eduvia/sso/start.py b/lms/www/eduvia/sso/start.py
new file mode 100644
index 00000000..c709dd74
--- /dev/null
+++ b/lms/www/eduvia/sso/start.py
@@ -0,0 +1,19 @@
+import frappe
+from urllib.parse import urlencode
+
+def get_context(context):
+    return_url = frappe.form_dict.get("return") or "/"
+    email = frappe.form_dict.get("email")
+    conf = frappe.get_conf()
+
+    if conf.get("eduvia_sso_mock_enabled"):
+        params = {"return": return_url}
+        if email:
+            params["email"] = email
+        target = f"{frappe.utils.get_url('/eduvia/sso/mock')}?{urlencode(params)}"
+    else:
+        eduvia_start = conf.get("eduvia_sso_start_url") or "https://app.eduvia.app/sso/start"
+        target = f"{eduvia_start}?{urlencode({'return': return_url})}"
+
+    frappe.local.flags.redirect_location = target
+    raise frappe.Redirect
\ No newline at end of file