diff --git a/backend/elena_app.py b/backend/elena_app.py
index f7740c5..31b0d6b 100644
--- a/backend/elena_app.py
+++ b/backend/elena_app.py
@@ -656,6 +656,70 @@ def _doc_hash(doc):
     except Exception:
         return ""
 
+@app.route("/api/legal/<doc>")
+def legal_text(doc):
+    """Отдаёт текст юридического документа для ознакомления."""
+    fname = {"offer": "dogovor_oferta.md", "pep": "soglashenie_pep.md", "pdn": "politika_pdn.md"}.get(doc)
+    if not fname:
+        return jsonify({"error": "unknown doc"}), 404
+    try:
+        text = open(os.path.join(BASE, "legal", fname), encoding="utf-8").read()
+        return jsonify({"doc": doc, "version": LEGAL_DOCS.get(doc, "1.0"), "text": text})
+    except Exception as e:
+        return jsonify({"error": str(e)}), 404
+
+@app.route("/api/sign/request", methods=["POST"])
+def sign_request():
+    """Генерирует код подтверждения (ПЭП). В проде — отправка по SMS/email."""
+    data = request.get_json(force=True) or {}
+    proj = get_project(data.get("token"))
+    if not proj:
+        return jsonify({"error": "project not found"}), 404
+    identifier = (data.get("identifier") or "").strip()
+    if not identifier:
+        return jsonify({"error": "укажите телефон или email"}), 400
+    code = "".join(secrets.choice("0123456789") for _ in range(4))
+    # храним код в crm artifact (TTL ~10 мин через timestamp)
+    crm = latest_artifact(proj["id"], "crm") or {}
+    crm["_sign_code"] = code
+    crm["_sign_identifier"] = identifier
+    crm["_sign_at"] = now()
+    save_artifact(proj["id"], "crm", crm)
+    # ДЕМО: возвращаем код (в проде — SMS/email, код не возвращается)
+    return jsonify({"ok": True, "demo_code": code, "note": "ДЕМО: в проде код придёт по SMS/email"})
+
+@app.route("/api/sign/confirm", methods=["POST"])
+def sign_confirm():
+    """Проверяет код и фиксирует подписание (акцепт) в журнал."""
+    data = request.get_json(force=True) or {}
+    proj = get_project(data.get("token"))
+    if not proj:
+        return jsonify({"error": "project not found"}), 404
+    code = (data.get("code") or "").strip()
+    crm = latest_artifact(proj["id"], "crm") or {}
+    if not crm.get("_sign_code") or code != crm["_sign_code"]:
+        return jsonify({"error": "неverный код"}), 400
+    identifier = crm.get("_sign_identifier", "")
+    docs = data.get("docs", ["offer", "pep"])
+    ip = request.headers.get("X-Real-IP") or request.headers.get("X-Forwarded-For", request.remote_addr or "")
+    ua = request.headers.get("User-Agent", "")[:300]
+    con = db()
+    recorded = []
+    for doc in docs:
+        if doc not in LEGAL_DOCS:
+            continue
+        h = _doc_hash(doc)
+        con.execute(
+            "INSERT INTO acceptances (project_id, doc, doc_version, doc_hash, identifier, code, ip, user_agent, payment_id, accepted_at) VALUES (?,?,?,?,?,?,?,?,?,?)",
+            (proj["id"], doc, LEGAL_DOCS[doc], h, identifier, code, ip, ua, "", now())
+        )
+        recorded.append(doc)
+    # очищаем временный код
+    crm.pop("_sign_code", None); crm.pop("_sign_at", None)
+    save_artifact(proj["id"], "crm", crm)
+    con.commit()
+    return jsonify({"ok": True, "signed": recorded, "identifier": identifier, "at": now()})
+
 @app.route("/api/accept", methods=["POST"])
 def accept_documents():
     """Фиксация акцепта (ПЭП) в append-only журнал с хешем документов."""
@@ -1009,6 +1073,7 @@ def get_project_state(token):
         "crm": latest_artifact(proj["id"], "crm") or {"pipeline":"lead","deal_amount":0,"paid_amount":0,"contact":"","source":"","note":"","billing_type":"paid"},
         "tasks": (latest_artifact(proj["id"], "tasks") or {}).get("items", []),
         "pricing": latest_artifact(proj["id"], "pricing"),
+        "signed": db().execute("SELECT 1 FROM acceptances WHERE project_id=? AND doc='offer' LIMIT 1", (proj["id"],)).fetchone() is not None,
         "documents": [json.loads(r["data_json"]) and {"filename": json.loads(r["data_json"])["filename"], "size": json.loads(r["data_json"]).get("size",0)} for r in db().execute("SELECT data_json FROM artifacts WHERE project_id=? AND kind='document' ORDER BY id", (proj["id"],)).fetchall()]
     })