diff --git a/tools/align_from_ayoub.py b/tools/align_from_ayoub.py
index 6b9224e..e825c48 100644
--- a/tools/align_from_ayoub.py
+++ b/tools/align_from_ayoub.py
@@ -1,12 +1,18 @@
 """Alignement servers depuis fichier Excel Ayoub (Planning Patching 2026_ayoub.xlsx).
 
-Lit le sheet 'Serveurs patchables 2026' et met a jour pour chaque hostname :
- - domaine               (col D : Domaine)
- - environnement         (col C : Environnement — override si vide)
- - responsable_nom       (col H : Responsable Domaine DTS)
- - referent_nom          (col J : Referent technique)
+Lit le sheet 'Serveurs patchables 2026' et aligne via JOINTURE:
+ 1. Auto-cree les domains/environments absents (valeurs iTop verbatim)
+ 2. Auto-cree les paires domain_environments
+ 3. Set servers.domain_env_id
+ 4. Sync servers.environnement (plain-text pour filtre)
+ 5. Set domain_environments.responsable_nom / referent_nom
 
-Ajoute la colonne servers.domaine si absente (varchar(100)).
+Colonnes Excel lues:
+ - Asset Name            -> servers.hostname (match)
+ - Domaine               -> domains.name (code auto-genere)
+ - Environnement         -> environments.name (code auto-genere)
+ - Responsable Domaine DTS -> domain_environments.responsable_nom
+ - Referent technique    -> domain_environments.referent_nom
 
 Usage:
     python tools/align_from_ayoub.py <fichier.xlsx> [--sheet "Serveurs patchables 2026"] [--dry-run]
@@ -14,8 +20,9 @@ Usage:
 Requiert openpyxl: pip install openpyxl
 """
 import os
-import argparse
 import re
+import argparse
+import unicodedata
 from sqlalchemy import create_engine, text
 
 try:
@@ -31,13 +38,75 @@ NBSP = "\u00a0"
 
 
 def clean(v):
-    """Normalise une cellule Excel: strip + enleve nbsp + None si vide."""
     if v is None:
         return None
     s = str(v).replace(NBSP, " ").strip()
     return s or None
 
 
+def slugify(s, maxlen=10):
+    """Slug ASCII lowercase pour code (domain.code varchar(10))."""
+    if not s:
+        return None
+    nfkd = unicodedata.normalize("NFKD", s)
+    ascii_str = "".join(c for c in nfkd if not unicodedata.combining(c))
+    ascii_str = re.sub(r"[^a-zA-Z0-9]+", "", ascii_str).lower()
+    return ascii_str[:maxlen] or None
+
+
+def get_or_create_domain(conn, name):
+    row = conn.execute(text("SELECT id, code FROM domains WHERE name=:n"),
+                       {"n": name}).fetchone()
+    if row:
+        return row.id
+    code = slugify(name, 10)
+    # Eviter collision de code
+    suffix = 0
+    base_code = code
+    while conn.execute(text("SELECT 1 FROM domains WHERE code=:c"),
+                       {"c": code}).fetchone():
+        suffix += 1
+        code = (base_code[: 10 - len(str(suffix))] + str(suffix))
+    conn.execute(text(
+        "INSERT INTO domains (name, code, display_order) VALUES (:n, :c, 99)"
+    ), {"n": name, "c": code})
+    return conn.execute(text("SELECT id FROM domains WHERE name=:n"),
+                        {"n": name}).fetchone().id
+
+
+def get_or_create_env(conn, name):
+    row = conn.execute(text("SELECT id FROM environments WHERE name=:n"),
+                       {"n": name}).fetchone()
+    if row:
+        return row.id
+    code = slugify(name, 10)
+    suffix = 0
+    base_code = code
+    while conn.execute(text("SELECT 1 FROM environments WHERE code=:c"),
+                       {"c": code}).fetchone():
+        suffix += 1
+        code = (base_code[: 10 - len(str(suffix))] + str(suffix))
+    conn.execute(text(
+        "INSERT INTO environments (name, code, display_order) VALUES (:n, :c, 99)"
+    ), {"n": name, "c": code})
+    return conn.execute(text("SELECT id FROM environments WHERE name=:n"),
+                        {"n": name}).fetchone().id
+
+
+def get_or_create_dom_env(conn, domain_id, env_id):
+    row = conn.execute(text(
+        "SELECT id FROM domain_environments WHERE domain_id=:d AND environment_id=:e"
+    ), {"d": domain_id, "e": env_id}).fetchone()
+    if row:
+        return row.id
+    conn.execute(text(
+        "INSERT INTO domain_environments (domain_id, environment_id) VALUES (:d, :e)"
+    ), {"d": domain_id, "e": env_id})
+    return conn.execute(text(
+        "SELECT id FROM domain_environments WHERE domain_id=:d AND environment_id=:e"
+    ), {"d": domain_id, "e": env_id}).fetchone().id
+
+
 def main():
     parser = argparse.ArgumentParser()
     parser.add_argument("xlsx_path")
@@ -48,31 +117,24 @@ def main():
     engine = create_engine(DATABASE_URL)
     print(f"[INFO] DB: {DATABASE_URL.split('@')[-1]}")
     print(f"[INFO] Fichier: {args.xlsx_path}")
-    print(f"[INFO] Sheet: {args.sheet}")
 
     conn = engine.connect().execution_options(isolation_level="AUTOCOMMIT")
 
-    # 1. Ajoute colonne domaine si absente (idempotent)
-    conn.execute(text("ALTER TABLE servers ADD COLUMN IF NOT EXISTS domaine varchar(100)"))
-
-    # 2. Lecture Excel
     wb = openpyxl.load_workbook(args.xlsx_path, data_only=True)
     if args.sheet not in wb.sheetnames:
         print(f"[ERR] Sheet '{args.sheet}' introuvable. Sheets: {wb.sheetnames}")
         return
     ws = wb[args.sheet]
 
-    # Detection dynamique des colonnes via header (ligne 1)
     header = [clean(c.value) for c in ws[1]]
-    print(f"[INFO] Header: {header[:12]}...")
 
-    def col_idx(name_candidates):
+    def col_idx(candidates):
         for i, h in enumerate(header):
-            if h and any(cand.lower() in h.lower() for cand in name_candidates):
+            if h and any(c.lower() in h.lower() for c in candidates):
                 return i
         return -1
 
-    idx_host = col_idx(["Asset Name", "Hostname", "Nom"])
+    idx_host = col_idx(["Asset Name", "Hostname"])
     idx_env = col_idx(["Environnement"])
     idx_dom = col_idx(["Domaine"])
     idx_resp = col_idx(["Responsable Domaine"])
@@ -85,81 +147,118 @@ def main():
         print("[ERR] Colonne Asset Name/Hostname introuvable")
         return
 
-    stats = {"updated": 0, "unchanged": 0, "not_found": 0, "skipped": 0}
-    changes_detail = []
+    stats = {"updated": 0, "dom_created": 0, "env_created": 0, "de_created": 0,
+             "not_found": 0, "skipped": 0, "de_resp_updated": 0}
+    seen_dom = {}
+    seen_env = {}
+    changes = []
 
     for row in ws.iter_rows(min_row=2, values_only=True):
         hostname = clean(row[idx_host]) if idx_host < len(row) else None
         if not hostname or not any(c.isalpha() for c in hostname):
             stats["skipped"] += 1
             continue
-
-        # Extract sans suffixe FQDN si present
         hostname = hostname.split(".")[0].lower()
 
-        fields = {}
-        if idx_dom >= 0 and idx_dom < len(row):
-            v = clean(row[idx_dom])
-            if v:
-                fields["domaine"] = v[:100]
-        if idx_env >= 0 and idx_env < len(row):
-            v = clean(row[idx_env])
-            if v:
-                fields["environnement"] = v[:50]
-        if idx_resp >= 0 and idx_resp < len(row):
-            v = clean(row[idx_resp])
-            if v:
-                # Enleve les virgules multiples, normalise espaces
-                v = re.sub(r"\s+", " ", v)
-                fields["responsable_nom"] = v[:200]
-        if idx_ref >= 0 and idx_ref < len(row):
-            v = clean(row[idx_ref])
-            if v:
-                v = re.sub(r"\s+", " ", v)
-                fields["referent_nom"] = v[:200]
+        dom_name = clean(row[idx_dom]) if idx_dom >= 0 and idx_dom < len(row) else None
+        env_name = clean(row[idx_env]) if idx_env >= 0 and idx_env < len(row) else None
+        resp = clean(row[idx_resp]) if idx_resp >= 0 and idx_resp < len(row) else None
+        ref = clean(row[idx_ref]) if idx_ref >= 0 and idx_ref < len(row) else None
+        if resp:
+            resp = re.sub(r"\s+", " ", resp)[:100]
+        if ref:
+            ref = re.sub(r"\s+", " ", ref)[:100]
 
-        if not fields:
-            continue
-
-        srv = conn.execute(text(
-            "SELECT id, domaine, environnement, responsable_nom, referent_nom "
-            "FROM servers WHERE hostname=:h"
-        ), {"h": hostname}).fetchone()
+        srv = conn.execute(text("SELECT id, domain_env_id, environnement "
+                                "FROM servers WHERE hostname=:h"),
+                           {"h": hostname}).fetchone()
         if not srv:
             stats["not_found"] += 1
             continue
 
-        # Calcule diff (pour ne pas ecraser si valeur identique)
-        diff = {}
-        for k, v in fields.items():
-            current = getattr(srv, k, None)
-            if current != v:
-                diff[k] = (current, v)
+        # Auto-create domain/env/de
+        de_id = srv.domain_env_id
+        if dom_name and env_name:
+            if dom_name not in seen_dom:
+                before = conn.execute(text("SELECT COUNT(*) FROM domains")).scalar()
+                if not args.dry_run:
+                    did = get_or_create_domain(conn, dom_name)
+                else:
+                    row_ = conn.execute(text("SELECT id FROM domains WHERE name=:n"),
+                                        {"n": dom_name}).fetchone()
+                    did = row_.id if row_ else -1
+                after = conn.execute(text("SELECT COUNT(*) FROM domains")).scalar()
+                if after > before:
+                    stats["dom_created"] += 1
+                seen_dom[dom_name] = did
 
-        if not diff:
-            stats["unchanged"] += 1
-            continue
+            if env_name not in seen_env:
+                before = conn.execute(text("SELECT COUNT(*) FROM environments")).scalar()
+                if not args.dry_run:
+                    eid = get_or_create_env(conn, env_name)
+                else:
+                    row_ = conn.execute(text("SELECT id FROM environments WHERE name=:n"),
+                                        {"n": env_name}).fetchone()
+                    eid = row_.id if row_ else -1
+                after = conn.execute(text("SELECT COUNT(*) FROM environments")).scalar()
+                if after > before:
+                    stats["env_created"] += 1
+                seen_env[env_name] = eid
 
-        if args.dry_run:
-            changes_detail.append((hostname, diff))
-        else:
-            set_clauses = ", ".join(f"{k}=:{k}" for k in diff)
-            params = {k: v[1] for k, v in diff.items()}
-            params["sid"] = srv.id
-            conn.execute(text(f"UPDATE servers SET {set_clauses} WHERE id=:sid"), params)
-        stats["updated"] += 1
+            did = seen_dom[dom_name]
+            eid = seen_env[env_name]
+            if did > 0 and eid > 0:
+                if not args.dry_run:
+                    before = conn.execute(text("SELECT COUNT(*) FROM domain_environments")).scalar()
+                    de_id = get_or_create_dom_env(conn, did, eid)
+                    after = conn.execute(text("SELECT COUNT(*) FROM domain_environments")).scalar()
+                    if after > before:
+                        stats["de_created"] += 1
+                    # Sync responsable/referent sur domain_environments (max 1 valeur — on garde la derniere vue)
+                    if resp or ref:
+                        up = {}
+                        if resp:
+                            up["resp"] = resp
+                        if ref:
+                            up["ref"] = ref
+                        sets = []
+                        if "resp" in up:
+                            sets.append("responsable_nom=:resp")
+                        if "ref" in up:
+                            sets.append("referent_nom=:ref")
+                        if sets:
+                            up["id"] = de_id
+                            conn.execute(text(
+                                f"UPDATE domain_environments SET {', '.join(sets)} "
+                                f"WHERE id=:id AND (responsable_nom IS NULL OR referent_nom IS NULL)"
+                            ), up)
+                            stats["de_resp_updated"] += 1
 
-    if args.dry_run and changes_detail:
-        print(f"\n[DRY-RUN] Changements ({len(changes_detail)}) :")
-        for hostname, diff in changes_detail[:30]:
-            print(f"  {hostname}:")
-            for k, (old, new) in diff.items():
-                print(f"    {k}: {old!r} -> {new!r}")
-        if len(changes_detail) > 30:
-            print(f"  ... ({len(changes_detail)-30} autres)")
+        # Update serveur: domain_env_id + environnement plain-text
+        updates = {}
+        if de_id and srv.domain_env_id != de_id:
+            updates["domain_env_id"] = de_id
+        if env_name and srv.environnement != env_name:
+            updates["environnement"] = env_name[:50]
 
-    print(f"\n[DONE] Maj: {stats['updated']} | Inchanges: {stats['unchanged']} "
-          f"| Hors base: {stats['not_found']} | Skip: {stats['skipped']}")
+        if updates:
+            if args.dry_run:
+                changes.append((hostname, updates))
+            else:
+                sets = ", ".join(f"{k}=:{k}" for k in updates)
+                params = dict(updates); params["sid"] = srv.id
+                conn.execute(text(f"UPDATE servers SET {sets} WHERE id=:sid"), params)
+            stats["updated"] += 1
+
+    if args.dry_run and changes:
+        print(f"\n[DRY-RUN] {len(changes)} serveurs a mettre a jour (premiers 20):")
+        for h, u in changes[:20]:
+            print(f"  {h}: {u}")
+
+    print(f"\n[DONE] servers maj: {stats['updated']} | domains crees: {stats['dom_created']} "
+          f"| envs crees: {stats['env_created']} | (dom,env) crees: {stats['de_created']} "
+          f"| resp/ref syncs: {stats['de_resp_updated']} | hors base: {stats['not_found']} "
+          f"| skip: {stats['skipped']}")
 
     conn.close()