diff --git a/kazeia_central/app.py b/kazeia_central/app.py
index c08d5cc..dcdc19f 100644
--- a/kazeia_central/app.py
+++ b/kazeia_central/app.py
@@ -22,10 +22,10 @@ from .core.adb import Adb
 from .core.context import VERSION, Ctx
 from .core.operator_router import make_router as operator_router
 from .core.store import Store
-from .features.fleet.router import make_router as fleet_router
-from .features.voices.autosync import VoiceAutoSync
-from .features.voices.bridge import VoiceBridge
-from .features.voices.router import make_router as voices_router
+from .features.technical.fleet.router import make_router as fleet_router
+from .features.technical.voices.autosync import VoiceAutoSync
+from .features.technical.voices.bridge import VoiceBridge
+from .features.technical.voices.router import make_router as voices_router
 
 _WEB_DIR = Path(__file__).resolve().parent / "web"
 _STORE_PATH = Path(os.environ.get("KAZEIA_STORE", Path.cwd() / "data" / "central.db"))
diff --git a/kazeia_central/features/fleet/__init__.py b/kazeia_central/features/medical/__init__.py
similarity index 100%
rename from kazeia_central/features/fleet/__init__.py
rename to kazeia_central/features/medical/__init__.py
diff --git a/kazeia_central/features/technical/__init__.py b/kazeia_central/features/technical/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/kazeia_central/features/technical/fleet/__init__.py b/kazeia_central/features/technical/fleet/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/kazeia_central/features/fleet/router.py b/kazeia_central/features/technical/fleet/router.py
similarity index 98%
rename from kazeia_central/features/fleet/router.py
rename to kazeia_central/features/technical/fleet/router.py
index 242bd9a..cbc1834 100644
--- a/kazeia_central/features/fleet/router.py
+++ b/kazeia_central/features/technical/fleet/router.py
@@ -6,7 +6,7 @@ from __future__ import annotations
 from fastapi import APIRouter
 from pydantic import BaseModel
 
-from ...core.context import Ctx
+from kazeia_central.core.context import Ctx
 from .service import device_overview, fan_out
 
 
diff --git a/kazeia_central/features/fleet/service.py b/kazeia_central/features/technical/fleet/service.py
similarity index 96%
rename from kazeia_central/features/fleet/service.py
rename to kazeia_central/features/technical/fleet/service.py
index dad10e9..ef182d8 100644
--- a/kazeia_central/features/fleet/service.py
+++ b/kazeia_central/features/technical/fleet/service.py
@@ -13,8 +13,8 @@ from __future__ import annotations
 
 from typing import Any, Callable
 
-from ...core.adb import Adb
-from ...core.provider import ProviderClient
+from kazeia_central.core.adb import Adb
+from kazeia_central.core.provider import ProviderClient
 
 
 def fan_out(adb: Adb, fn: Callable[[str], Any], *,
diff --git a/kazeia_central/features/voices/__init__.py b/kazeia_central/features/technical/voices/__init__.py
similarity index 100%
rename from kazeia_central/features/voices/__init__.py
rename to kazeia_central/features/technical/voices/__init__.py
diff --git a/kazeia_central/features/voices/admin_ingest.py b/kazeia_central/features/technical/voices/admin_ingest.py
similarity index 98%
rename from kazeia_central/features/voices/admin_ingest.py
rename to kazeia_central/features/technical/voices/admin_ingest.py
index f1e8e3c..c16e44d 100644
--- a/kazeia_central/features/voices/admin_ingest.py
+++ b/kazeia_central/features/technical/voices/admin_ingest.py
@@ -20,7 +20,7 @@ import posixpath
 import tempfile
 from typing import Any
 
-from ...core.adb import Adb
+from kazeia_central.core.adb import Adb
 
 # getExternalFilesDir("voix") de com.kazeia.admin. /sdcard = /storage/emulated/0.
 ADMIN_VOIX_DIR = os.environ.get(
diff --git a/kazeia_central/features/voices/autosync.py b/kazeia_central/features/technical/voices/autosync.py
similarity index 100%
rename from kazeia_central/features/voices/autosync.py
rename to kazeia_central/features/technical/voices/autosync.py
diff --git a/kazeia_central/features/voices/bridge.py b/kazeia_central/features/technical/voices/bridge.py
similarity index 97%
rename from kazeia_central/features/voices/bridge.py
rename to kazeia_central/features/technical/voices/bridge.py
index 291f1f9..2463a8b 100644
--- a/kazeia_central/features/voices/bridge.py
+++ b/kazeia_central/features/technical/voices/bridge.py
@@ -45,7 +45,7 @@ class VoiceBridge:
                 f"(provisionner ov_venv, ou définir OV_PYTHON)")
         env = dict(os.environ, PYTHONPATH=str(_REPO), PYTHONUNBUFFERED="1")
         self._proc = subprocess.Popen(
-            [self.ov_python, "-m", "kazeia_central.features.voices.worker"],
+            [self.ov_python, "-m", "kazeia_central.features.technical.voices.worker"],
             stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=None,  # stderr → console
             text=True, env=env, bufsize=1,
         )
diff --git a/kazeia_central/features/voices/enroll.py b/kazeia_central/features/technical/voices/enroll.py
similarity index 100%
rename from kazeia_central/features/voices/enroll.py
rename to kazeia_central/features/technical/voices/enroll.py
diff --git a/kazeia_central/features/voices/orchestrator.py b/kazeia_central/features/technical/voices/orchestrator.py
similarity index 98%
rename from kazeia_central/features/voices/orchestrator.py
rename to kazeia_central/features/technical/voices/orchestrator.py
index 7c4b5af..8edd1f2 100644
--- a/kazeia_central/features/voices/orchestrator.py
+++ b/kazeia_central/features/technical/voices/orchestrator.py
@@ -18,9 +18,9 @@ import posixpath
 import tempfile
 from typing import Any
 
-from ...core.adb import Adb
-from ...core.provider import ProviderClient
-from ...core.store import Store
+from kazeia_central.core.adb import Adb
+from kazeia_central.core.provider import ProviderClient
+from kazeia_central.core.store import Store
 from . import admin_ingest, transfer
 from .bridge import VoiceBridge
 
diff --git a/kazeia_central/features/voices/router.py b/kazeia_central/features/technical/voices/router.py
similarity index 98%
rename from kazeia_central/features/voices/router.py
rename to kazeia_central/features/technical/voices/router.py
index d3f7c1a..1034e91 100644
--- a/kazeia_central/features/voices/router.py
+++ b/kazeia_central/features/technical/voices/router.py
@@ -6,7 +6,7 @@ from __future__ import annotations
 from fastapi import APIRouter
 from pydantic import BaseModel
 
-from ...core.context import Ctx
+from kazeia_central.core.context import Ctx
 from . import orchestrator as vo
 
 
diff --git a/kazeia_central/features/voices/transcribe.py b/kazeia_central/features/technical/voices/transcribe.py
similarity index 100%
rename from kazeia_central/features/voices/transcribe.py
rename to kazeia_central/features/technical/voices/transcribe.py
diff --git a/kazeia_central/features/voices/transfer.py b/kazeia_central/features/technical/voices/transfer.py
similarity index 98%
rename from kazeia_central/features/voices/transfer.py
rename to kazeia_central/features/technical/voices/transfer.py
index 6a4ed69..4e566e4 100644
--- a/kazeia_central/features/voices/transfer.py
+++ b/kazeia_central/features/technical/voices/transfer.py
@@ -13,7 +13,7 @@ from __future__ import annotations
 
 import posixpath
 
-from ...core.adb import Adb, AdbError
+from kazeia_central.core.adb import Adb, AdbError
 
 # Le provider expose VOICE_WAV_DIR = "${MODELS_DIR}/../voix/voix" → ce marqueur
 # permet d'extraire MODELS_DIR depuis un wav_path, donc le dossier voix OmniVoice cible.
diff --git a/kazeia_central/features/voices/worker.py b/kazeia_central/features/technical/voices/worker.py
similarity index 97%
rename from kazeia_central/features/voices/worker.py
rename to kazeia_central/features/technical/voices/worker.py
index 81707de..213a09c 100644
--- a/kazeia_central/features/voices/worker.py
+++ b/kazeia_central/features/technical/voices/worker.py
@@ -1,7 +1,7 @@
 """Worker d'enrôlement vocal — process persistant sous ov_venv.
 
 Lancé par `voice/bridge.py` (côté API py3.14) via :
-    ov_venv/bin/python -m kazeia_central.features.voices.worker
+    ov_venv/bin/python -m kazeia_central.features.technical.voices.worker
 Garde le modèle OmniVoice (enrôlement + ASR de réf) **chaud**, et sert une file de
 jobs via un protocole JSON-lines sur stdin/stdout.
 
diff --git a/kazeia_central/web/app.js b/kazeia_central/web/app.js
index d95e852..1f16cb4 100644
--- a/kazeia_central/web/app.js
+++ b/kazeia_central/web/app.js
@@ -25,15 +25,17 @@ async function withBusy(btn, fn) { const o = btn.textContent; btn.disabled = tru
 
 // ---- sections -------------------------------------------------------------
 const SECTIONS = [
+  { group: "🔧 Technique", domain: "tech" },
   { id: "flotte", ic: "🛰", label: "Flotte", render: renderFlotte },
   { id: "voix", ic: "🎙", label: "Voix", render: renderVoix },
   { id: "updates", ic: "⬆", label: "Mises à jour", render: renderUpdates },
+  { id: "config", ic: "⚙", label: "Config & moteur", render: () => stub("Config & moteur", "Config sampling (température, presets…) et prompts moteur, avec push par tablette. Dépend des méthodes call() base64-JSON côté app patiente (PROVIDER_RPC_SPEC).") },
   { id: "audit", ic: "📋", label: "Audit", render: renderAudit },
-  { sep: "Parité admin (à venir)" },
-  { id: "profils", ic: "👤", label: "Profils", render: () => stub("Profils & fiche patient", "Fiche clinique chiffrée côté Kazeia-central (identité, contact, clinique) + langue par patient. La fiche est constructible maintenant ; la propagation de la langue passe par l'app patiente (PROFILE_LANGUAGE_SPEC livrée).") },
-  { id: "conversations", ic: "💬", label: "Conversations", render: () => stub("Conversations cliniques", "Rapatriement chiffré des conversations + export PDF/JSON + purge + collecteur de fond. Dépend de conversations_export côté app patiente.") },
-  { id: "config", ic: "⚙", label: "Config & presets", render: () => stub("Config & presets", "Édition de la config sampling + presets et push. Dépend des méthodes call() base64-JSON côté app patiente (PROVIDER_RPC_SPEC).") },
-  { id: "rag", ic: "📚", label: "RAG", render: () => stub("Corpus RAG", "Authoring du corpus + test retrieval + publication OTA. Dépend de rag_upsert_json côté app patiente.") },
+  { group: "⚕️ Médical / clinique", domain: "med" },
+  { id: "patients", ic: "👤", label: "Patients & profils", render: () => stub("Patients & fiche patient", "Dossier patient chiffré côté Kazeia-central (identité, contact, clinique) + profils on-device + langue par patient. La fiche est constructible maintenant ; la propagation de la langue passe par l'app patiente (PROFILE_LANGUAGE_SPEC livrée).") },
+  { id: "conversations", ic: "💬", label: "Conversations", render: () => stub("Conversations cliniques", "Rapatriement chiffré des conversations + export PDF/JSON + purge + collecteur de fond. Cœur RGPD. Dépend de conversations_export côté app patiente.") },
+  { id: "rag", ic: "📚", label: "RAG thérapeutique", render: () => stub("Corpus RAG thérapeutique", "Authoring du corpus clinique + test retrieval + publication OTA. Dépend de rag_upsert_json côté app patiente.") },
+  { id: "questionnaires", ic: "📝", label: "Questionnaires", render: () => stub("Questionnaires cliniques", "Passation d'échelles/questionnaires cliniques au patient et suivi des scores dans le temps. À concevoir avec toi.") },
 ];
 
 // ---- boot + shell ---------------------------------------------------------
@@ -73,8 +75,8 @@ async function renderShell() {
     </div>
     <nav class="sidebar" id="sidebar"></nav>
     <main><div id="content"></div></main>`;
-  $("#sidebar").innerHTML = SECTIONS.map(s => s.sep
-    ? `<div class="nav-label">${s.sep}</div>`
+  $("#sidebar").innerHTML = SECTIONS.map(s => s.group
+    ? `<div class="nav-label ${s.domain === "med" ? "dom-med" : "dom-tech"}">${s.group}</div>`
     : `<div class="nav-item" data-id="${s.id}"><span class="ic">${s.ic}</span>${s.label}</div>`).join("");
   $("#sidebar").querySelectorAll(".nav-item").forEach(n => n.onclick = () => { S.section = n.dataset.id; renderSection(); });
   await loadDevices();
@@ -94,7 +96,7 @@ async function loadDevices() {
 
 function renderSection() {
   document.querySelectorAll(".nav-item").forEach(n => n.classList.toggle("active", n.dataset.id === S.section));
-  const sec = SECTIONS.find(s => s.id === S.section) || SECTIONS[0];
+  const sec = SECTIONS.find(s => s.id === S.section) || SECTIONS.find(s => s.render);
   const c = $("#content"); c.innerHTML = `<div class="empty"><span class="spinner"></span></div>`;
   Promise.resolve(sec.render(c)).catch(e => { c.innerHTML = `<div class="card"><div class="err">${esc(e.message)}</div></div>`; });
 }
diff --git a/kazeia_central/web/styles.css b/kazeia_central/web/styles.css
index 1dc9f4f..37e0fa1 100644
--- a/kazeia_central/web/styles.css
+++ b/kazeia_central/web/styles.css
@@ -64,7 +64,10 @@ h1,h2,h3 { margin: 0; font-weight: 650; }
 .nav-item.active { background: var(--primary-soft); color: var(--primary-d); font-weight: 650; }
 .nav-sep { height: 1px; background: var(--line); margin: 10px 6px; }
 .nav-label { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted);
-  padding: 6px 12px 4px; }
+  padding: 12px 12px 5px; font-weight: 700; }
+.nav-label.dom-tech { color: var(--primary-d); border-top: 1px solid var(--line); margin-top: 4px; }
+.nav-label.dom-med { color: var(--ok); border-top: 1px solid var(--line); margin-top: 10px; }
+.nav-label.dom-tech:first-child { border-top: 0; margin-top: 0; }
 
 main { margin: var(--top) 0 0 var(--side); padding: 22px 26px; min-height: calc(100vh - var(--top)); }
 .page-head { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
diff --git a/tests/test_fleet.py b/tests/test_fleet.py
index 615881d..06ed29f 100644
--- a/tests/test_fleet.py
+++ b/tests/test_fleet.py
@@ -6,7 +6,7 @@ from fastapi.testclient import TestClient
 from kazeia_central.core.adb import Adb, AdbError
 from kazeia_central.core.adb.client import AdbDevice
 from kazeia_central.app import create_app
-from kazeia_central.features.fleet.service import device_overview, fan_out
+from kazeia_central.features.technical.fleet.service import device_overview, fan_out
 from kazeia_central.core.store import Store
 
 
diff --git a/tests/test_voice.py b/tests/test_voice.py
index 13b3482..ef39919 100644
--- a/tests/test_voice.py
+++ b/tests/test_voice.py
@@ -13,9 +13,9 @@ import nacl.pwhash
 from kazeia_central.core.adb import Adb
 from kazeia_central.core.adb.client import AdbDevice
 from kazeia_central.core.store import Store
-from kazeia_central.features.voices import admin_ingest
-from kazeia_central.features.voices import orchestrator as vo
-from kazeia_central.features.voices import transfer
+from kazeia_central.features.technical.voices import admin_ingest
+from kazeia_central.features.technical.voices import orchestrator as vo
+from kazeia_central.features.technical.voices import transfer
 
 _OPS = nacl.pwhash.argon2id.OPSLIMIT_MIN
 _MEM = nacl.pwhash.argon2id.MEMLIMIT_MIN
@@ -249,14 +249,14 @@ def test_sync_admin_delete_cleans(tmp_path):
 
 # ---- déclencheur auto -----------------------------------------------------
 def test_autosync_blocked_when_locked(tmp_path):
-    from kazeia_central.features.voices.autosync import VoiceAutoSync
+    from kazeia_central.features.technical.voices.autosync import VoiceAutoSync
     locked = Store(tmp_path / "l.db", kdf_ops=_OPS, kdf_mem=_MEM)   # pas unlock
     a = VoiceAutoSync(_Adb([_manifest("paul", "global")]), locked, _Bridge())
     assert a.sync_now("D1")["state"] == "store_verrouille"
 
 
 def test_autosync_enabled_ingests(tmp_path):
-    from kazeia_central.features.voices.autosync import VoiceAutoSync
+    from kazeia_central.features.technical.voices.autosync import VoiceAutoSync
     s = _store(tmp_path)
     a = VoiceAutoSync(_Adb([_manifest("paul", "global")]), s, _Bridge())
     a.set_enabled(True, delete_source=False)