feat: recipe favorites (#124), portion rescaler (#123), financial waste report (#117), macronutrient panel (#118)

- #124: star toggle on recipe view + favorites shown first in archive with gold border
- #123: +/- persons buttons on recipe to scale ingredient quantities
- #117: wasted value in EUR displayed in monthly stats section
- #118: macronutrient breakdown panel (P/C/F/fiber bars) with 4th insight rotation phase
- DB: is_favorite column on recipes, nutriments_json on products (auto-migrated)
- OFF API: nutriments fields fetched and stored per product
- Translations: it/en/de/fr/es updated with new keys

api/database.php

@@ -277,6 +277,20 @@ function migrateDB(PDO $db): void {
         ");
         $db->exec("CREATE UNIQUE INDEX IF NOT EXISTS idx_shopping_list_name ON shopping_list(lower(name))");
     }
+
+    // Add is_favorite column to recipes if missing (#124)
+    $recCols = array_column($db->query("PRAGMA table_info(recipes)")->fetchAll(), 'name');
+    if (!in_array('is_favorite', $recCols)) {
+        try { $db->exec("ALTER TABLE recipes ADD COLUMN is_favorite INTEGER NOT NULL DEFAULT 0"); }
+        catch (PDOException $e) { if (strpos($e->getMessage(), 'duplicate column') === false) throw $e; }
+    }
+
+    // Add nutriments_json column to products if missing (#118)
+    $prodCols2 = array_column($db->query("PRAGMA table_info(products)")->fetchAll(), 'name');
+    if (!in_array('nutriments_json', $prodCols2)) {
+        try { $db->exec("ALTER TABLE products ADD COLUMN nutriments_json TEXT DEFAULT NULL"); }
+        catch (PDOException $e) { if (strpos($e->getMessage(), 'duplicate column') === false) throw $e; }
+    }
 }
 
 /**

api/index.php

@@ -922,6 +922,12 @@ try {
         case 'recipes_delete':
             recipesDelete($db);
             break;
+        case 'recipes_toggle_favorite':
+            recipeToggleFavorite($db);
+            break;
+        case 'macro_stats':
+            getMacroStats($db);
+            break;
         case 'chat_list':
             chatList($db);
             break;
@@ -2140,7 +2146,7 @@ function stockForName(PDO $db): void {
 }
 
 function _offFetchProduct(string $barcode): ?array {
-    $fields = 'product_name,product_name_it,generic_name,generic_name_it,brands,categories_tags,categories_hierarchy,categories,image_front_small_url,image_url,quantity,nutriscore_grade,ingredients_text_it,ingredients_text,allergens_tags,conservation_conditions_it,conservation_conditions,origins_it,origins,manufacturing_places,nova_group,ecoscore_grade,labels,stores';
+    $fields = 'product_name,product_name_it,generic_name,generic_name_it,brands,categories_tags,categories_hierarchy,categories,image_front_small_url,image_url,quantity,nutriscore_grade,ingredients_text_it,ingredients_text,allergens_tags,conservation_conditions_it,conservation_conditions,origins_it,origins,manufacturing_places,nova_group,ecoscore_grade,labels,stores,nutriments';
 
     // Try candidate barcodes: given barcode + EAN-13 (UPC-A → prepend 0)
     $candidates = [$barcode];
@@ -2200,6 +2206,22 @@ function _offFetchProduct(string $barcode): ?array {
                 $allergens = implode(', ', array_map(fn($a) => str_replace('en:', '', $a), $p['allergens_tags']));
             }
 
+            // Extract macronutrients per 100g (from OFF 'nutriments' field)
+            $nutriments = null;
+            if (!empty($p['nutriments']) && is_array($p['nutriments'])) {
+                $nm = $p['nutriments'];
+                $nutriments = [
+                    'energy_kcal_100g' => isset($nm['energy-kcal_100g']) ? round((float)$nm['energy-kcal_100g'], 1) : (isset($nm['energy_100g']) ? round((float)$nm['energy_100g'] / 4.184, 1) : null),
+                    'proteins_100g'    => isset($nm['proteins_100g'])    ? round((float)$nm['proteins_100g'], 1)    : null,
+                    'carbohydrates_100g' => isset($nm['carbohydrates_100g']) ? round((float)$nm['carbohydrates_100g'], 1) : null,
+                    'fat_100g'         => isset($nm['fat_100g'])         ? round((float)$nm['fat_100g'], 1)         : null,
+                    'fiber_100g'       => isset($nm['fiber_100g'])       ? round((float)$nm['fiber_100g'], 1)       : null,
+                    'salt_100g'        => isset($nm['salt_100g'])        ? round((float)$nm['salt_100g'], 1)        : null,
+                ];
+                // Only keep if at least one macro is present
+                if (!array_filter(array_values($nutriments))) $nutriments = null;
+            }
+
             return [
                 'name'          => $name,
                 'brand'         => $p['brands'] ?? '',
@@ -2215,6 +2237,7 @@ function _offFetchProduct(string $barcode): ?array {
                 'ecoscore'      => $p['ecoscore_grade'] ?? '',
                 'labels'        => $p['labels'] ?? '',
                 'stores'        => $p['stores'] ?? '',
+                'nutriments'    => $nutriments,
             ];
         }
     }
@@ -2380,28 +2403,31 @@ function saveProduct(PDO $db): void {
         $stmt = $db->prepare("
             UPDATE products SET name=?, brand=?, category=?, image_url=?, unit=?,
             default_quantity=?, notes=?, barcode=?, package_unit=?, shopping_name=?,
+            nutriments_json=?,
             updated_at=CURRENT_TIMESTAMP WHERE id=?
         ");
+        $nutriJson = isset($input['nutriments']) ? json_encode($input['nutriments']) : null;
         $stmt->execute([
             $input['name'], $input['brand'] ?? '', $input['category'] ?? '',
             $input['image_url'] ?? '', $input['unit'] ?? 'pz',
             $input['default_quantity'] ?? 1, $input['notes'] ?? '',
             $input['barcode'] ?? null, $input['package_unit'] ?? '',
-            $shoppingName, $input['id']
+            $shoppingName, $nutriJson, $input['id']
         ]);
         echo json_encode(['success' => true, 'id' => $input['id']]);
     } else {
         // Insert new
         $stmt = $db->prepare("
-            INSERT INTO products (barcode, name, brand, category, image_url, unit, default_quantity, notes, package_unit, shopping_name)
+            INSERT INTO products (barcode, name, brand, category, image_url, unit, default_quantity, notes, package_unit, shopping_name, nutriments_json)
-            VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+            VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
         ");
         $barcode = !empty($input['barcode']) ? $input['barcode'] : null;
+        $nutriJson = isset($input['nutriments']) ? json_encode($input['nutriments']) : null;
         $stmt->execute([
             $barcode, $input['name'], $input['brand'] ?? '',
             $input['category'] ?? '', $input['image_url'] ?? '',
             $input['unit'] ?? 'pz', $input['default_quantity'] ?? 1,
-            $input['notes'] ?? '', $input['package_unit'] ?? '', $shoppingName
+            $input['notes'] ?? '', $input['package_unit'] ?? '', $shoppingName, $nutriJson
         ]);
         echo json_encode(['success' => true, 'id' => $db->lastInsertId()]);
     }
@@ -3739,6 +3765,31 @@ function getMonthlyStats(PDO $db): void {
         LIMIT 3
     ")->fetchAll(PDO::FETCH_ASSOC);
 
+    // Estimated € value of wasted items this month (#117)
+    $wastedValueEur = 0.0;
+    if ($thisWaste > 0 && file_exists(PRICE_CACHE_PATH)) {
+        $priceCache = json_decode(file_get_contents(PRICE_CACHE_PATH), true) ?: [];
+        $country = env('PRICE_COUNTRY', 'Italia');
+        $wastedProds = $db->query("
+            SELECT p.name, SUM(t.quantity) AS total_qty, p.unit
+            FROM transactions t
+            JOIN products p ON t.product_id = p.id
+            WHERE t.type = 'waste' AND t.undone = 0
+              AND t.created_at >= '{$thisMonthStart}'
+            GROUP BY t.product_id
+        ")->fetchAll(PDO::FETCH_ASSOC);
+        foreach ($wastedProds as $wp) {
+            $key = _priceKey($wp['name'], $country);
+            if (isset($priceCache[$key]['unit_price']) && $priceCache[$key]['unit_price'] > 0) {
+                $unitPrice = (float)$priceCache[$key]['unit_price'];
+                $qty = (float)$wp['total_qty'];
+                // For weight/volume units treat qty as single-use events (transactions counted per action)
+                $wastedValueEur += $unitPrice * $qty;
+            }
+        }
+        $wastedValueEur = round($wastedValueEur, 2);
+    }
+
     echo json_encode([
         'success'             => true,
         'month'               => date('Y-m'),
@@ -3746,6 +3797,7 @@ function getMonthlyStats(PDO $db): void {
         'items_consumed_prev' => $prevOut,
         'items_added'         => $thisIn,
         'items_wasted'        => $thisWaste,
+        'wasted_value_eur'    => $wastedValueEur,
         'top_categories'      => $topCats,
         'top_products'        => array_map(fn($r) => [
             'name'  => $r['name'],
@@ -3754,6 +3806,104 @@ function getMonthlyStats(PDO $db): void {
     ]);
 }
 
+// ===== MACRO STATS (#118) =====
+/**
+ * Aggregate macronutrients from current inventory.
+ * For products with barcode-fetched nutriments_json, uses real data.
+ * For products without, uses per-category static estimates (per 100g).
+ */
+function getMacroStats(PDO $db): void {
+    EverLog::debug('getMacroStats');
+
+    // Static per-category estimates (per 100g, rough averages)
+    $catDefaults = [
+        'frutta'     => ['energy_kcal_100g' => 52,  'proteins_100g' => 0.7, 'carbohydrates_100g' => 12.0, 'fat_100g' => 0.3, 'fiber_100g' => 2.0],
+        'verdura'    => ['energy_kcal_100g' => 30,  'proteins_100g' => 2.0, 'carbohydrates_100g' => 5.0,  'fat_100g' => 0.2, 'fiber_100g' => 2.5],
+        'carne'      => ['energy_kcal_100g' => 200, 'proteins_100g' => 20.0,'carbohydrates_100g' => 0.0,  'fat_100g' => 13.0,'fiber_100g' => 0.0],
+        'pesce'      => ['energy_kcal_100g' => 130, 'proteins_100g' => 20.0,'carbohydrates_100g' => 0.0,  'fat_100g' => 5.0, 'fiber_100g' => 0.0],
+        'latticini'  => ['energy_kcal_100g' => 150, 'proteins_100g' => 8.0, 'carbohydrates_100g' => 5.0,  'fat_100g' => 8.0, 'fiber_100g' => 0.0],
+        'pasta'      => ['energy_kcal_100g' => 350, 'proteins_100g' => 12.0,'carbohydrates_100g' => 70.0, 'fat_100g' => 2.0, 'fiber_100g' => 3.0],
+        'pane'       => ['energy_kcal_100g' => 265, 'proteins_100g' => 9.0, 'carbohydrates_100g' => 50.0, 'fat_100g' => 3.0, 'fiber_100g' => 2.5],
+        'cereali'    => ['energy_kcal_100g' => 370, 'proteins_100g' => 10.0,'carbohydrates_100g' => 70.0, 'fat_100g' => 4.0, 'fiber_100g' => 6.0],
+        'bevande'    => ['energy_kcal_100g' => 40,  'proteins_100g' => 0.2, 'carbohydrates_100g' => 10.0, 'fat_100g' => 0.0, 'fiber_100g' => 0.0],
+        'condimenti' => ['energy_kcal_100g' => 150, 'proteins_100g' => 1.0, 'carbohydrates_100g' => 10.0, 'fat_100g' => 10.0,'fiber_100g' => 0.5],
+        'conserve'   => ['energy_kcal_100g' => 80,  'proteins_100g' => 4.0, 'carbohydrates_100g' => 10.0, 'fat_100g' => 2.0, 'fiber_100g' => 2.0],
+        'surgelati'  => ['energy_kcal_100g' => 100, 'proteins_100g' => 8.0, 'carbohydrates_100g' => 10.0, 'fat_100g' => 3.0, 'fiber_100g' => 2.0],
+        'snack'      => ['energy_kcal_100g' => 480, 'proteins_100g' => 6.0, 'carbohydrates_100g' => 55.0, 'fat_100g' => 28.0,'fiber_100g' => 2.0],
+        'altro'      => ['energy_kcal_100g' => 150, 'proteins_100g' => 4.0, 'carbohydrates_100g' => 20.0, 'fat_100g' => 5.0, 'fiber_100g' => 1.5],
+    ];
+
+    $rows = $db->query("
+        SELECT p.name, p.category, p.unit, p.default_quantity, p.nutriments_json, i.quantity
+        FROM inventory i
+        JOIN products p ON i.product_id = p.id
+        WHERE i.quantity > 0
+    ")->fetchAll(PDO::FETCH_ASSOC);
+
+    $totals = ['energy_kcal' => 0.0, 'proteins' => 0.0, 'carbohydrates' => 0.0, 'fat' => 0.0, 'fiber' => 0.0];
+    $itemsWithData = 0;
+    $totalItems    = count($rows);
+
+    foreach ($rows as $row) {
+        $nm = null;
+        if (!empty($row['nutriments_json'])) {
+            $nm = json_decode($row['nutriments_json'], true);
+        }
+
+        // Estimate grams in inventory for this row
+        $unit   = $row['unit'] ?: 'pz';
+        $qty    = (float)$row['quantity'];
+        $defQty = (float)($row['default_quantity'] ?: 0);
+        $grams  = 100; // default: assume 100g per item if no unit info
+
+        if ($unit === 'g')    $grams = $qty;
+        elseif ($unit === 'kg')   $grams = $qty * 1000;
+        elseif ($unit === 'ml')   $grams = $qty; // approx 1g/ml
+        elseif ($unit === 'l')    $grams = $qty * 1000;
+        elseif (in_array($unit, ['pz','conf']) && $defQty >= 20) $grams = $qty * $defQty;
+        elseif (in_array($unit, ['pz','conf']) && $defQty > 0)   $grams = $qty * $defQty;
+
+        if ($grams <= 0) $grams = 100;
+
+        // Use real nutriments if available, else fallback to category default
+        if ($nm && isset($nm['proteins_100g'])) {
+            $macro = $nm;
+        } else {
+            $cat = mb_strtolower(trim(_normalizeCat($row['category'] ?? 'altro')));
+            $macro = $catDefaults[$cat] ?? $catDefaults['altro'];
+        }
+
+        $factor = $grams / 100.0;
+        $totals['energy_kcal']    += ($macro['energy_kcal_100g']    ?? 0) * $factor;
+        $totals['proteins']       += ($macro['proteins_100g']       ?? 0) * $factor;
+        $totals['carbohydrates']  += ($macro['carbohydrates_100g']  ?? 0) * $factor;
+        $totals['fat']            += ($macro['fat_100g']            ?? 0) * $factor;
+        $totals['fiber']          += ($macro['fiber_100g']          ?? 0) * $factor;
+        if ($nm && isset($nm['proteins_100g'])) $itemsWithData++;
+    }
+
+    // Round
+    foreach ($totals as $k => $v) $totals[$k] = round($v);
+
+    // Macro ratio percentages (of kcal from P/C/F)
+    $pKcal   = $totals['proteins'] * 4;
+    $cKcal   = $totals['carbohydrates'] * 4;
+    $fKcal   = $totals['fat'] * 9;
+    $sumKcal = max($pKcal + $cKcal + $fKcal, 1);
+
+    echo json_encode([
+        'success'         => true,
+        'total_items'     => $totalItems,
+        'items_with_data' => $itemsWithData,
+        'totals'          => $totals,
+        'ratios'          => [
+            'proteins'      => round($pKcal / $sumKcal * 100),
+            'carbohydrates' => round($cKcal / $sumKcal * 100),
+            'fat'           => round($fKcal / $sumKcal * 100),
+        ],
+    ]);
+}
+
 // ===== RECENT & POPULAR PRODUCTS =====
 function recentPopularProducts(PDO $db): void {
     EverLog::debug('recentPopularProducts');
@@ -9279,7 +9429,7 @@ function appSettingsSave(PDO $db): void {
 
 function recipesList(PDO $db): void {
     $limit = min(intval($_GET['limit'] ?? 60), 200);
-    $rows = $db->query("SELECT id, date, meal, recipe_json, created_at FROM recipes ORDER BY date DESC, created_at DESC LIMIT {$limit}")->fetchAll();
+    $rows = $db->query("SELECT id, date, meal, recipe_json, created_at, is_favorite FROM recipes ORDER BY is_favorite DESC, date DESC, created_at DESC LIMIT {$limit}")->fetchAll();
     EverLog::debug('recipesList');
     $recipes = [];
     foreach ($rows as $row) {
@@ -9288,12 +9438,23 @@ function recipesList(PDO $db): void {
             'date'        => $row['date'],
             'meal'        => $row['meal'],
             'recipe'      => json_decode($row['recipe_json'], true),
-            'savedAt' => strtotime($row['created_at']) * 1000
+            'savedAt'     => strtotime($row['created_at']) * 1000,
+            'is_favorite' => (bool)$row['is_favorite'],
         ];
     }
     echo json_encode(['success' => true, 'recipes' => $recipes]);
 }
 
+function recipeToggleFavorite(PDO $db): void {
+    EverLog::info('recipeToggleFavorite');
+    $input = json_decode(file_get_contents('php://input'), true);
+    $id = intval($input['id'] ?? 0);
+    if ($id <= 0) { echo json_encode(['error' => 'Invalid id']); return; }
+    $db->prepare("UPDATE recipes SET is_favorite = 1 - is_favorite WHERE id = ?")->execute([$id]);
+    $fav = (int)$db->query("SELECT is_favorite FROM recipes WHERE id = {$id}")->fetchColumn();
+    echo json_encode(['success' => true, 'is_favorite' => (bool)$fav]);
+}
+
 function recipesSave(PDO $db): void {
     EverLog::info('recipesSave');
     $input = json_decode(file_get_contents('php://input'), true);

assets/css/style.css

@@ -6535,6 +6535,108 @@ body.cooking-mode-active .app-header {
     flex-wrap: wrap;
 }
 
+/* ===== RECIPE FAVORITES (#124) ===== */
+.recipe-fav-badge {
+    margin-left: auto;
+    font-size: 1.1rem;
+    color: #f59e0b;
+    flex-shrink: 0;
+}
+
+.recipe-archive-card-fav {
+    border-left: 3px solid #f59e0b;
+}
+
+.btn-recipe-fav {
+    background: none;
+    border: none;
+    font-size: 1.4rem;
+    cursor: pointer;
+    color: var(--text-muted);
+    padding: 0 4px;
+    line-height: 1;
+    transition: color 0.2s, transform 0.15s;
+    margin-left: auto;
+}
+
+.btn-recipe-fav:hover { color: #f59e0b; transform: scale(1.2); }
+.btn-recipe-fav.active { color: #f59e0b; }
+
+/* ===== PORTION RESCALER (#123) ===== */
+.recipe-persons-ctrl {
+    display: inline-flex;
+    align-items: center;
+    gap: 4px;
+    padding: 3px 6px;
+}
+
+.btn-persons-adj {
+    background: var(--bg-secondary, #1e2a3a);
+    border: 1px solid var(--border-color, #2a3a50);
+    color: var(--text-primary);
+    border-radius: 50%;
+    width: 22px;
+    height: 22px;
+    font-size: 1rem;
+    line-height: 1;
+    cursor: pointer;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    padding: 0;
+    transition: background 0.15s;
+}
+
+.btn-persons-adj:hover { background: var(--accent, #6366f1); color: #fff; }
+
+/* ===== MACRONUTRIENT PANEL (#118) ===== */
+.macro-bars {
+    display: flex;
+    flex-direction: column;
+    gap: 8px;
+    margin: 12px 0 8px;
+}
+
+.macro-row {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+}
+
+.macro-label {
+    font-size: 0.75rem;
+    color: var(--text-muted);
+    min-width: 70px;
+    flex-shrink: 0;
+}
+
+.macro-bar-wrap {
+    flex: 1;
+    height: 8px;
+    background: var(--bg-secondary, #1e2a3a);
+    border-radius: 4px;
+    overflow: hidden;
+}
+
+.macro-bar-fill {
+    height: 100%;
+    width: 0%;
+    border-radius: 4px;
+    transition: width 0.6s ease;
+}
+
+.macro-val {
+    font-size: 0.72rem;
+    color: var(--text-primary);
+    text-align: right;
+    min-width: 80px;
+    flex-shrink: 0;
+}
+
+.macro-val small {
+    color: var(--text-muted);
+}
+
 /* ===== SCREENSAVER ===== */
 .screensaver-overlay {
     position: fixed;

assets/js/app.js

@@ -4411,8 +4411,14 @@ function _renderMonthlyStatsSection(data) {
     const badges = [];
     if (data.items_added > 0)
         badges.push(`<span class="aw-badge"><span class="aw-badge-icon">📦</span><span class="aw-badge-body"><b>${data.items_added}</b><small>${t('stats_monthly.added')}</small></span></span>`);
-    if (data.items_wasted > 0)
+    if (data.items_wasted > 0) {
-        badges.push(`<span class="aw-badge aw-badge-wasted"><span class="aw-badge-icon">🗑️</span><span class="aw-badge-body"><b>${data.items_wasted}</b><small>${t('stats_monthly.wasted')}</small></span></span>`);
+        let wastedBadgeText = `<b>${data.items_wasted}</b><small>${t('stats_monthly.wasted')}</small>`;
+        if (data.wasted_value_eur > 0) {
+            const sym = getSettings().price_currency === 'USD' ? '$' : (getSettings().price_currency === 'GBP' ? '£' : '€');
+            wastedBadgeText = `<b>${data.items_wasted}</b><small>${t('stats_monthly.wasted')} · ${sym}${data.wasted_value_eur.toFixed(2)}</small>`;
+        }
+        badges.push(`<span class="aw-badge aw-badge-wasted"><span class="aw-badge-icon">🗑️</span><span class="aw-badge-body">${wastedBadgeText}</span></span>`);
+    }
     if (data.top_products?.length > 0)
         badges.push(`<span class="aw-badge aw-badge-better"><span class="aw-badge-icon">⭐</span><span class="aw-badge-body"><b>${escapeHtml(data.top_products[0].name)}</b><small>${t('stats_monthly.top_used')}</small></span></span>`);
 
@@ -4449,11 +4455,59 @@ function _renderMonthlyStatsSection(data) {
     section.style.display = (_insightPhase === 'monthly') ? 'block' : 'none';
 }
 
+// ===== MACROS SECTION (#118) =====
+/**
+ * Render the macronutrient breakdown panel into #macros-section.
+ */
+function _renderMacrosSection(data) {
+    const section = document.getElementById('macros-section');
+    if (!section) return;
+    if (!data || !data.success || data.total_items === 0) {
+        section.innerHTML = '';
+        section.style.display = 'none';
+        return;
+    }
+
+    const { totals, ratios, total_items } = data;
+    const macros = [
+        { key: 'carbohydrates', label: t('nutrition.macros_carbs'),    color: '#a78bfa', value: totals.carbohydrates, unit: 'g', pct: ratios.carbohydrates },
+        { key: 'fat',           label: t('nutrition.macros_fat'),      color: '#fbbf24', value: totals.fat,           unit: 'g', pct: ratios.fat },
+        { key: 'proteins',      label: t('nutrition.macros_proteins'), color: '#4ade80', value: totals.proteins,      unit: 'g', pct: ratios.proteins },
+        { key: 'fiber',         label: t('nutrition.macros_fiber'),    color: '#34d399', value: totals.fiber,         unit: 'g', pct: null },
+    ];
+
+    const bars = macros.map(m => {
+        const barPct = m.pct !== null ? m.pct : Math.min(100, Math.round((m.value / Math.max(totals.carbohydrates + totals.fat + totals.proteins, 1)) * 100));
+        return `<div class="macro-row">
+            <span class="macro-label">${m.label}</span>
+            <div class="macro-bar-wrap">
+                <div class="macro-bar-fill" style="background:${m.color}" data-target="${barPct}"></div>
+            </div>
+            <span class="macro-val">${m.value.toLocaleString(_currentLang === 'de' ? 'de-DE' : 'it-IT')}${m.unit}${m.pct !== null ? ` <small>(${m.pct}%)</small>` : ''}</span>
+        </div>`;
+    }).join('');
+
+    section.innerHTML = `
+    <div class="nutr-card">
+        <div class="aw-header">
+            <div class="aw-title-row">
+                <span class="aw-live-dot aw-live-on"></span>
+                <h3 class="aw-title">${t('nutrition.macros_title')}</h3>
+            </div>
+            <span class="aw-grade" style="background:#0ea5e9;font-size:.75rem;padding:4px 10px">${totals.energy_kcal.toLocaleString()} kcal</span>
+        </div>
+        <div class="macro-bars">${bars}</div>
+        <div class="aw-source">${t('nutrition.macros_source').replace('{n}', total_items)}</div>
+    </div>`;
+
+    section.style.display = (_insightPhase === 'macros') ? 'block' : 'none';
+}
+
 /**
  * Start the waste ↔ nutrition ↔ monthly stats alternation on the dashboard.
  */
-let _insightPhase = null; // 'waste' | 'nutrition' | 'monthly'
+let _insightPhase = null; // 'waste' | 'nutrition' | 'monthly' | 'macros'
-const _INSIGHT_PHASES = ['waste', 'nutrition', 'monthly'];
+const _INSIGHT_PHASES = ['waste', 'nutrition', 'monthly', 'macros'];
 
 function _startInsightAlternation() {
     clearInterval(_insightFlipTimer);
@@ -4472,6 +4526,7 @@ function _applyInsightPhase() {
     const wasteEl   = document.getElementById('waste-chart-section');
     const nutrEl    = document.getElementById('nutrition-section');
     const monthlyEl = document.getElementById('monthly-stats-section');
+    const macrosEl  = document.getElementById('macros-section');
     if (!wasteEl || !nutrEl) return;
 
     // Map of which panels actually have rendered content
@@ -4479,6 +4534,7 @@ function _applyInsightPhase() {
         'waste':     wasteEl.innerHTML.trim()    !== '',
         'nutrition': nutrEl.innerHTML.trim()     !== '',
         'monthly':   !!monthlyEl && monthlyEl.innerHTML.trim() !== '',
+        'macros':    !!macrosEl  && macrosEl.innerHTML.trim()  !== '',
     };
 
     // If the intended phase has no content, advance to the next one that does
@@ -4491,14 +4547,16 @@ function _applyInsightPhase() {
     const showWaste   = phase === 'waste';
     const showNutr    = phase === 'nutrition';
     const showMonthly = phase === 'monthly';
+    const showMacros  = phase === 'macros';
 
-    // Fade-swap all three panels
+    // Fade-swap all four panels
-    const els = [wasteEl, nutrEl, ...(monthlyEl ? [monthlyEl] : [])];
+    const els = [wasteEl, nutrEl, ...(monthlyEl ? [monthlyEl] : []), ...(macrosEl ? [macrosEl] : [])];
     els.forEach(el => { el.style.opacity = '0'; el.style.transition = 'opacity .6s'; });
     setTimeout(() => {
         wasteEl.style.display   = showWaste   ? 'block' : 'none';
         nutrEl.style.display    = showNutr    ? 'block' : 'none';
         if (monthlyEl) monthlyEl.style.display = showMonthly ? 'block' : 'none';
+        if (macrosEl)  macrosEl.style.display  = showMacros  ? 'block' : 'none';
         requestAnimationFrame(() => {
             els.forEach(el => { el.style.opacity = '1'; });
             if (showNutr) {
@@ -4512,6 +4570,12 @@ function _applyInsightPhase() {
                     bar.style.width = (bar.dataset.target || 0) + '%';
                 });
             }
+            if (showMacros && macrosEl) {
+                macrosEl.querySelectorAll('.macro-bar-fill').forEach(bar => {
+                    bar.style.transition = 'width 0.6s ease';
+                    bar.style.width = (bar.dataset.target || 0) + '%';
+                });
+            }
         });
     }, 620);
 }
@@ -4629,10 +4693,11 @@ async function loadDashboard() {
         loadBannerAlerts();
 
         // Anti-waste section + Nutrition section + Monthly stats: load in parallel
-        const [, invForNutr, monthlyData] = await Promise.all([
+        const [, invForNutr, monthlyData, macroData] = await Promise.all([
             _awLoadFacts(),
             api('inventory_list').then(d => d.inventory || []).catch(() => []),
             api('monthly_stats').catch(() => null),
+            api('macro_stats').catch(() => null),
         ]);
         _renderAntiWasteSection(
             statsData.used_30d      || 0, statsData.wasted_30d      || 0,
@@ -4648,6 +4713,9 @@ async function loadDashboard() {
         // Monthly stats panel
         _renderMonthlyStatsSection(monthlyData);
 
+        // Macronutrient panel (#118)
+        _renderMacrosSection(macroData);
+
         _startInsightAlternation();
 
         // Opened (partially used products with known package capacity)
@@ -12829,10 +12897,12 @@ async function loadRecipeArchive() {
             const tags = (r.tags || []).slice(0, 3).join(', ');
             // Find this entry's index in the flat archive array
             const archiveIdx = archive.indexOf(entry);
-            html += `<div class="recipe-archive-card" onclick="viewArchivedRecipe(${archiveIdx})">`;
+            const favBadge = entry.is_favorite ? `<span class="recipe-fav-badge" title="${t('recipes.favorite')}">★</span>` : '';
+            html += `<div class="recipe-archive-card${entry.is_favorite ? ' recipe-archive-card-fav' : ''}" onclick="viewArchivedRecipe(${archiveIdx})">`;
             html += `<div class="recipe-archive-card-header">`;
             html += `<span class="recipe-archive-meal">${mealIcon}</span>`;
             html += `<span class="recipe-archive-title">${escapeHtml(r.title)}</span>`;
+            html += favBadge;
             html += `</div>`;
             html += `<div class="recipe-archive-card-meta">`;
             if (r.prep_time) html += `<span>🔪 ${r.prep_time}</span>`;
@@ -12851,7 +12921,7 @@ async function loadRecipeArchive() {
 function viewArchivedRecipe(idx) {
     const entry = _recipeArchiveEntries[idx];
     if (!entry) return;
-    _cachedRecipe = { meal: _normalizeMealId(entry.meal), recipe: entry.recipe };
+    _cachedRecipe = { meal: _normalizeMealId(entry.meal), recipe: entry.recipe, id: entry.id, is_favorite: !!entry.is_favorite };
     renderRecipe(entry.recipe);
     document.getElementById('recipe-overlay').style.display = 'flex';
     document.getElementById('recipe-ask').style.display = 'none';
@@ -13333,6 +13403,55 @@ function _extractToolsFromSteps(steps) {
     return found;
 }
 
+// ===== RECIPE FAVORITES & PORTION RESCALER =====
+let _recipeBasePersons = 1;
+let _recipeCurrentPersons = 1;
+
+/**
+ * Toggle favorite status for the currently displayed archived recipe (#124).
+ */
+async function toggleRecipeFavorite(btn) {
+    if (!_cachedRecipe || !_cachedRecipe.id) return;
+    const res = await api('recipes_toggle_favorite', {}, 'POST', { id: _cachedRecipe.id });
+    if (!res.success) return;
+    _cachedRecipe.is_favorite = res.is_favorite;
+    btn.classList.toggle('active', res.is_favorite);
+    btn.textContent = res.is_favorite ? '★' : '☆';
+    btn.title = res.is_favorite ? t('recipes.unfavorite') : t('recipes.favorite');
+    // Invalidate archive cache so the star shows on next open
+    _recipeArchiveCache = null;
+}
+
+/**
+ * Scale recipe ingredient quantities (#123).
+ * Delta: +1 or -1. Min 1, max 20 persons.
+ */
+function adjustRecipePersons(delta) {
+    const newPersons = Math.max(1, Math.min(20, _recipeCurrentPersons + delta));
+    if (newPersons === _recipeCurrentPersons) return;
+    _recipeCurrentPersons = newPersons;
+    const display = document.getElementById('recipe-persons-display');
+    if (display) display.textContent = `👥 ${newPersons} ${t('recipes.persons_short')}`;
+
+    const ratio = _recipeBasePersons > 0 ? (newPersons / _recipeBasePersons) : 1;
+    document.querySelectorAll('#recipe-content .recipe-ingredient').forEach(li => {
+        const baseQty   = parseFloat(li.dataset.baseQty || '0');
+        const baseStr   = li.dataset.baseQtyStr || '';
+        const qtySpan   = li.querySelector('.recipe-ing-qty');
+        if (!qtySpan) return;
+
+        if (baseQty > 0) {
+            // Extract unit suffix from baseStr: e.g. "200 g" → "g", "2 uova" → "uova"
+            const m = baseStr.match(/^(\d+(?:[.,]\d+)?)\s*(.*)/);
+            const unitSuffix = m ? m[2].trim() : '';
+            const scaled = baseQty * ratio;
+            // Round sensibly: integers for whole counts, 1 decimal for fractional
+            const rounded = scaled < 10 ? (Math.round(scaled * 10) / 10) : Math.round(scaled);
+            qtySpan.textContent = unitSuffix ? `${rounded} ${unitSuffix}` : String(rounded);
+        }
+    });
+}
+
 function renderRecipe(r) {
     // Reset regen choice panel (hide choice, show button)
     const regenChoice = document.getElementById('recipe-regen-choice');
@@ -13340,15 +13459,29 @@ function renderRecipe(r) {
     if (regenChoice) regenChoice.style.display = 'none';
     if (regenBtn) regenBtn.style.display = '';
 
+    // Store base persons for the rescaler (#123)
+    _recipeBasePersons = r.persons || 1;
+    _recipeCurrentPersons = _recipeBasePersons;
+
+    const isFav = !!(_cachedRecipe && _cachedRecipe.is_favorite);
+
     let html = `<h2>${r.title}</h2>`;
 
-    // Meta tags
+    // Meta tags + star (#124) + persons rescaler (#123)
     html += '<div class="recipe-meta">';
     if (r.meal) html += `<span class="recipe-tag">${_mealLabel(r.meal)}</span>`;
-    html += `<span class="recipe-tag">👥 ${r.persons} ${t('recipes.persons_short')}</span>`;
+    html += `<span class="recipe-tag recipe-persons-ctrl">
+        <button class="btn-persons-adj" onclick="adjustRecipePersons(-1)">−</button>
+        <span id="recipe-persons-display">👥 ${r.persons} ${t('recipes.persons_short')}</span>
+        <button class="btn-persons-adj" onclick="adjustRecipePersons(+1)">+</button>
+    </span>`;
     if (r.prep_time) html += `<span class="recipe-tag">🔪 ${r.prep_time}</span>`;
     if (r.cook_time) html += `<span class="recipe-tag">🔥 ${r.cook_time}</span>`;
     if (r.tags) r.tags.forEach(t => { html += `<span class="recipe-tag">${t}</span>`; });
+    // Favorite star button (#124) — visible only for archived recipes (have an id)
+    if (_cachedRecipe && _cachedRecipe.id) {
+        html += `<button class="btn-recipe-fav${isFav ? ' active' : ''}" onclick="toggleRecipeFavorite(this)" title="${isFav ? t('recipes.unfavorite') : t('recipes.favorite')}">${isFav ? '★' : '☆'}</button>`;
+    }
     html += '</div>';
 
     // Expiry note
@@ -13371,8 +13504,8 @@ function renderRecipe(r) {
             const qtyNum = Math.round((ing.qty_number || 0) * 10) / 10;
             const loc = (ing.location || 'dispensa').replace(/'/g, "\\'");
             const alreadyUsed = ing.used === true;
-            html += `<li class="recipe-ingredient${alreadyUsed ? ' recipe-ing-used' : ''}" id="recipe-ing-${idx}">`;
+            html += `<li class="recipe-ingredient${alreadyUsed ? ' recipe-ing-used' : ''}" id="recipe-ing-${idx}" data-base-qty="${ing.qty_number || 0}" data-base-qty-str="${(ing.qty || '').replace(/"/g, '&quot;')}">`;
-            html += `<span class="recipe-ing-text"><strong class="recipe-ing-name" onclick="openIngredientDetail(${ing.product_id}, '${loc}')" title="${t('action.edit') || 'Modifica'}">${ing.name}</strong>${ing.brand ? ' <em>(' + ing.brand + ')</em>' : ''}: ${ing.qty} ✅`;
+            html += `<span class="recipe-ing-text"><strong class="recipe-ing-name" onclick="openIngredientDetail(${ing.product_id}, '${loc}')" title="${t('action.edit') || 'Modifica'}">${ing.name}</strong>${ing.brand ? ' <em>(' + ing.brand + ')</em>' : ''}: <span class="recipe-ing-qty">${ing.qty}</span> ✅`;
             // Detail line: location + expiry
             let details = [];
             const ingredientLocLabels = Object.fromEntries(Object.entries(LOCATIONS).map(([k,v]) => [k, `${v.icon} ${v.label}`]));
@@ -13396,7 +13529,7 @@ function renderRecipe(r) {
             html += `</li>`;
         } else {
             const pantryIcon = ing.from_pantry ? ' ✅' : ' 🛒';
-            html += `<li class="recipe-ingredient"><span class="recipe-ing-text"><strong>${ing.name}</strong>: ${ing.qty}${pantryIcon}</span></li>`;
+            html += `<li class="recipe-ingredient" data-base-qty="${ing.qty_number || 0}" data-base-qty-str="${(ing.qty || '').replace(/"/g, '&quot;')}"><span class="recipe-ing-text"><strong>${ing.name}</strong>: <span class="recipe-ing-qty">${ing.qty}</span>${pantryIcon}</span></li>`;
         }
     });
     html += '</ul>';

index.html

@@ -174,6 +174,7 @@
             <div id="waste-chart-section" style="display:none"></div>
             <div id="nutrition-section" style="display:none"></div>
             <div id="monthly-stats-section" style="display:none"></div>
+            <div id="macros-section" style="display:none"></div>
         </div>
 
         <!-- Alert for soonest expiring items -->

translations/de.json

@@ -384,7 +384,10 @@
         "scale_wait_stable": "10s stabiles Gewicht für Auto-Ausfüllen abwarten…",
         "ingredient_scaled_toast": "📦 Zutat vom Vorrat abgezogen!",
         "finished_added_bring_toast": "🛒 Produkt aufgebraucht → zu Bring! hinzugefügt!",
-        "load_error": "Fehler beim Laden"
+        "load_error": "Fehler beim Laden",
+        "favorite": "Zu Favoriten hinzufügen",
+        "unfavorite": "Aus Favoriten entfernen",
+        "adjust_persons": "Personen"
     },
     "shopping": {
         "title": "🛒 Einkaufsliste",
@@ -1247,7 +1250,13 @@
         "source": "Basierend auf {n} Produkten in deiner Vorratskammer · EverShelf",
         "products_count": "Produkte",
         "today_title": "🥗 Deine Vorratskammer heute",
-        "products_n": "{n} Produkte"
+        "products_n": "{n} Produkte",
+        "macros_title": "Geschätzte Makronährstoffe",
+        "macros_proteins": "Proteine",
+        "macros_carbs": "Kohlenhydrate",
+        "macros_fat": "Fett",
+        "macros_fiber": "Ballaststoffe",
+        "macros_source": "Schätzung basierend auf {n} Vorratsprodukten"
     },
     "facts": {
         "greeting_morning": "Guten Morgen",

translations/en.json

@@ -384,7 +384,10 @@
         "scale_wait_stable": "Wait 10s of stable weight for auto-fill…",
         "ingredient_scaled_toast": "📦 Ingredient deducted from pantry!",
         "finished_added_bring_toast": "🛒 Finished product → added to Bring!",
-        "load_error": "Loading error"
+        "load_error": "Loading error",
+        "favorite": "Add to favourites",
+        "unfavorite": "Remove from favourites",
+        "adjust_persons": "Persons"
     },
     "shopping": {
         "title": "🛒 Shopping List",
@@ -1247,7 +1250,13 @@
         "source": "Based on {n} products in your pantry · EverShelf",
         "products_count": "products",
         "today_title": "🥗 Your pantry today",
-        "products_n": "{n} products"
+        "products_n": "{n} products",
+        "macros_title": "Estimated Macronutrients",
+        "macros_proteins": "Proteins",
+        "macros_carbs": "Carbohydrates",
+        "macros_fat": "Fat",
+        "macros_fiber": "Fibre",
+        "macros_source": "Estimate based on {n} pantry products"
     },
     "facts": {
         "greeting_morning": "Good morning",

translations/es.json

@@ -379,7 +379,10 @@
         "scale_wait_stable": "Espera 10s de peso estable para el relleno automático…",
         "ingredient_scaled_toast": "📦 ¡Ingrediente deducido de la despensa!",
         "finished_added_bring_toast": "🛒 Producto terminado → ¡añadido a Bring!",
-        "load_error": "Error de carga"
+        "load_error": "Error de carga",
+        "favorite": "Añadir a favoritos",
+        "unfavorite": "Quitar de favoritos",
+        "adjust_persons": "Personas"
     },
     "shopping": {
         "title": "🛒 Lista de la compra",
@@ -1195,7 +1198,13 @@
         "source": "Basado en {n} productos en tu despensa · EverShelf",
         "products_count": "productos",
         "today_title": "🥗 Tu despensa hoy",
-        "products_n": "{n} productos"
+        "products_n": "{n} productos",
+        "macros_title": "Macronutrientes estimados",
+        "macros_proteins": "Proteínas",
+        "macros_carbs": "Carbohidratos",
+        "macros_fat": "Grasas",
+        "macros_fiber": "Fibra",
+        "macros_source": "Estimación basada en {n} productos en despensa"
     },
     "facts": {
         "greeting_morning": "Buenos días",

translations/fr.json

@@ -379,7 +379,10 @@
         "scale_wait_stable": "Attendez 10s de poids stable pour le remplissage automatique…",
         "ingredient_scaled_toast": "📦 Ingrédient déduit du garde-manger !",
         "finished_added_bring_toast": "🛒 Produit terminé → ajouté à Bring !",
-        "load_error": "Erreur de chargement"
+        "load_error": "Erreur de chargement",
+        "favorite": "Ajouter aux favoris",
+        "unfavorite": "Retirer des favoris",
+        "adjust_persons": "Personnes"
     },
     "shopping": {
         "title": "🛒 Liste de courses",
@@ -1195,7 +1198,13 @@
         "source": "Basé sur {n} produits dans votre garde-manger · EverShelf",
         "products_count": "produits",
         "today_title": "🥗 Votre garde-manger aujourd'hui",
-        "products_n": "{n} produits"
+        "products_n": "{n} produits",
+        "macros_title": "Macronutriments estimés",
+        "macros_proteins": "Protéines",
+        "macros_carbs": "Glucides",
+        "macros_fat": "Lipides",
+        "macros_fiber": "Fibres",
+        "macros_source": "Estimation basée sur {n} produits en stock"
     },
     "facts": {
         "greeting_morning": "Bonjour",

translations/it.json

@@ -384,7 +384,10 @@
         "scale_wait_stable": "Attendi 10s di stabilità per la compilazione automatica…",
         "ingredient_scaled_toast": "📦 Ingrediente scalato dalla dispensa!",
         "finished_added_bring_toast": "🛒 Prodotto finito → aggiunto a Bring!",
-        "load_error": "Errore nel caricamento"
+        "load_error": "Errore nel caricamento",
+        "favorite": "Aggiungi ai preferiti",
+        "unfavorite": "Rimuovi dai preferiti",
+        "adjust_persons": "Persone"
     },
     "shopping": {
         "title": "🛒 Lista della Spesa",
@@ -1258,7 +1261,13 @@
         "source": "Basato su {n} prodotti in dispensa · EverShelf",
         "products_count": "prodotti",
         "today_title": "🥗 La tua dispensa oggi",
-        "products_n": "{n} prodotti"
+        "products_n": "{n} prodotti",
+        "macros_title": "Macronutrienti stimati",
+        "macros_proteins": "Proteine",
+        "macros_carbs": "Carboidrati",
+        "macros_fat": "Grassi",
+        "macros_fiber": "Fibre",
+        "macros_source": "Stima basata su {n} prodotti in dispensa"
     },
     "facts": {
         "greeting_morning": "Buongiorno",