diff --git a/db.js b/db.js
index 161494d..e95716a 100644
--- a/db.js
+++ b/db.js
@@ -6,7 +6,7 @@ const db = new sqlite3.Database(path.join(__dirname, 'cocktails.db'), (err) => {
   else console.log('Connected to SQLite');
 });
 
-// Crea tabella se non esiste
+// 1) Tabella cocktail (come già avevi)
 db.run(`
   CREATE TABLE IF NOT EXISTS cocktails (
     id INTEGER PRIMARY KEY AUTOINCREMENT,
@@ -26,4 +26,74 @@ db.run(`
   )
 `);
 
-module.exports = db;
\ No newline at end of file
+// 2) Tabella ingredienti normalizzati
+db.run(`
+  CREATE TABLE IF NOT EXISTS ingredients (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    name TEXT NOT NULL,
+    category TEXT,
+    style TEXT,
+    abv REAL
+  )
+`);
+
+// 3) Relazione cocktail–ingredienti
+db.run(`
+  CREATE TABLE IF NOT EXISTS cocktail_ingredients (
+    cocktail_id INTEGER NOT NULL,
+    ingredient_id INTEGER NOT NULL,
+    amount TEXT,
+    unit TEXT,
+    order_index INTEGER,
+    PRIMARY KEY (cocktail_id, ingredient_id),
+    FOREIGN KEY (cocktail_id) REFERENCES cocktails(id),
+    FOREIGN KEY (ingredient_id) REFERENCES ingredients(id)
+  )
+`);
+
+// 4) Tabella inventario bottiglie (con codice a barre)
+db.run(`
+  CREATE TABLE IF NOT EXISTS inventory_items (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    ingredient_id INTEGER NOT NULL,
+    brand TEXT,
+    label_name TEXT,
+    barcode TEXT,
+    bottle_size_ml INTEGER,
+    bottle_type TEXT,
+    origin_country TEXT,
+    region TEXT,
+    style TEXT,
+    abv REAL,
+
+    current_level_fraction REAL DEFAULT 1.0,
+    current_level_ml REAL,
+    condition TEXT,
+    location TEXT,
+    storage_notes TEXT,
+    is_active INTEGER DEFAULT 1,
+    opened_at TEXT,
+
+    purchase_price REAL,
+    purchase_currency TEXT,
+    purchase_date TEXT,
+    supplier TEXT,
+
+    par_level_bottles REAL,
+    reorder_point_bottles REAL,
+    reorder_qty_bottles REAL,
+    status TEXT,
+    last_count_at TEXT,
+
+    is_collectible INTEGER DEFAULT 0,
+    personal_rating REAL,
+    tasting_notes TEXT,
+
+    created_at TEXT DEFAULT CURRENT_TIMESTAMP,
+    updated_at TEXT,
+
+    FOREIGN KEY (ingredient_id) REFERENCES ingredients(id)
+  )
+`);
+
+module.exports = db;