diff --git a/backend/db.js b/backend/db.js
index d77bf03..342f97a 100644
--- a/backend/db.js
+++ b/backend/db.js
@@ -140,6 +140,54 @@ const initDB = async () => {
             );
         `);
 
+        await pool.query(`
+            CREATE TABLE IF NOT EXISTS catalog_categories (
+                id SERIAL PRIMARY KEY,
+                name VARCHAR(255) NOT NULL UNIQUE,
+                description TEXT,
+                created_at TIMESTAMPTZ DEFAULT CURRENT_TIMESTAMP,
+                updated_at TIMESTAMPTZ DEFAULT CURRENT_TIMESTAMP
+            );
+        `);
+
+        await pool.query(`
+            CREATE TABLE IF NOT EXISTS catalog_products (
+                id SERIAL PRIMARY KEY,
+                type VARCHAR(40) NOT NULL DEFAULT 'finished_product',
+                sku VARCHAR(100) NOT NULL UNIQUE,
+                name TEXT NOT NULL,
+                category_id INTEGER REFERENCES catalog_categories(id) ON DELETE SET NULL,
+                composition TEXT,
+                notes TEXT,
+                gramature NUMERIC(14, 4),
+                material_yield NUMERIC(14, 4),
+                width_cm NUMERIC(14, 4),
+                color VARCHAR(100),
+                subcategory VARCHAR(80),
+                sizes TEXT[] DEFAULT '{}',
+                created_at TIMESTAMPTZ DEFAULT CURRENT_TIMESTAMP,
+                updated_at TIMESTAMPTZ DEFAULT CURRENT_TIMESTAMP
+            );
+        `);
+
+        await pool.query(`
+            CREATE TABLE IF NOT EXISTS consumption_references (
+                id SERIAL PRIMARY KEY,
+                product_id INTEGER NOT NULL REFERENCES catalog_products(id) ON DELETE CASCADE,
+                material_product_id INTEGER REFERENCES catalog_products(id) ON DELETE SET NULL,
+                color VARCHAR(100),
+                general_yield NUMERIC(14, 4),
+                size_yields JSONB DEFAULT '{}'::jsonb,
+                size_areas JSONB DEFAULT '{}'::jsonb,
+                gramature NUMERIC(14, 4),
+                efficiency_percent NUMERIC(7, 3),
+                rib_g_per_piece NUMERIC(14, 4),
+                material_cost_per_kg NUMERIC(14, 4),
+                created_at TIMESTAMPTZ DEFAULT CURRENT_TIMESTAMP,
+                updated_at TIMESTAMPTZ DEFAULT CURRENT_TIMESTAMP
+            );
+        `);
+
         await pool.query(`
             ALTER TABLE production_orders
             ALTER COLUMN created_at TYPE TIMESTAMPTZ USING created_at AT TIME ZONE 'America/Sao_Paulo',
@@ -160,6 +208,30 @@ const initDB = async () => {
             ALTER COLUMN updated_at SET DEFAULT CURRENT_TIMESTAMP;
         `).catch(() => {});
 
+        await pool.query(`
+            ALTER TABLE catalog_categories
+            ALTER COLUMN created_at TYPE TIMESTAMPTZ USING created_at AT TIME ZONE 'America/Sao_Paulo',
+            ALTER COLUMN created_at SET DEFAULT CURRENT_TIMESTAMP,
+            ALTER COLUMN updated_at TYPE TIMESTAMPTZ USING updated_at AT TIME ZONE 'America/Sao_Paulo',
+            ALTER COLUMN updated_at SET DEFAULT CURRENT_TIMESTAMP;
+        `).catch(() => {});
+
+        await pool.query(`
+            ALTER TABLE catalog_products
+            ALTER COLUMN created_at TYPE TIMESTAMPTZ USING created_at AT TIME ZONE 'America/Sao_Paulo',
+            ALTER COLUMN created_at SET DEFAULT CURRENT_TIMESTAMP,
+            ALTER COLUMN updated_at TYPE TIMESTAMPTZ USING updated_at AT TIME ZONE 'America/Sao_Paulo',
+            ALTER COLUMN updated_at SET DEFAULT CURRENT_TIMESTAMP;
+        `).catch(() => {});
+
+        await pool.query(`
+            ALTER TABLE consumption_references
+            ALTER COLUMN created_at TYPE TIMESTAMPTZ USING created_at AT TIME ZONE 'America/Sao_Paulo',
+            ALTER COLUMN created_at SET DEFAULT CURRENT_TIMESTAMP,
+            ALTER COLUMN updated_at TYPE TIMESTAMPTZ USING updated_at AT TIME ZONE 'America/Sao_Paulo',
+            ALTER COLUMN updated_at SET DEFAULT CURRENT_TIMESTAMP;
+        `).catch(() => {});
+
         await pool.query(`
             CREATE TABLE IF NOT EXISTS app_users (
                 id SERIAL PRIMARY KEY,
@@ -228,6 +300,10 @@ const initDB = async () => {
         await pool.query(`CREATE INDEX IF NOT EXISTS idx_production_orders_expected_date ON production_orders (expected_date DESC);`);
         await pool.query(`CREATE INDEX IF NOT EXISTS idx_production_order_markers_order_id ON production_order_markers (production_order_id);`);
         await pool.query(`CREATE INDEX IF NOT EXISTS idx_cutting_product_overrides_family_key ON cutting_product_overrides (family_key);`);
+        await pool.query(`CREATE INDEX IF NOT EXISTS idx_catalog_products_type ON catalog_products (type);`);
+        await pool.query(`CREATE INDEX IF NOT EXISTS idx_catalog_products_category_id ON catalog_products (category_id);`);
+        await pool.query(`CREATE INDEX IF NOT EXISTS idx_consumption_references_product_id ON consumption_references (product_id);`);
+        await pool.query(`CREATE INDEX IF NOT EXISTS idx_consumption_references_material_product_id ON consumption_references (material_product_id);`);
         await pool.query(`CREATE INDEX IF NOT EXISTS idx_orders_cliente_fone ON orders (cliente_fone);`);
         await pool.query(`
             CREATE INDEX IF NOT EXISTS idx_orders_normalized_cliente_nome
diff --git a/backend/routes/catalogRoutes.js b/backend/routes/catalogRoutes.js
new file mode 100644
index 0000000..d1195a9
--- /dev/null
+++ b/backend/routes/catalogRoutes.js
@@ -0,0 +1,101 @@
+const express = require('express');
+const { verifyToken } = require('../auth');
+const {
+    createCategory,
+    createConsumptionReference,
+    createProduct,
+    deleteCategory,
+    deleteConsumptionReference,
+    deleteProduct,
+    getCatalogSummary,
+    listCategories,
+    listConsumptionReferences,
+    listProducts
+} = require('../services/catalogService');
+
+const router = express.Router();
+
+router.get('/catalog', verifyToken, async (req, res, next) => {
+    try {
+        res.json(await getCatalogSummary());
+    } catch (error) {
+        next(error);
+    }
+});
+
+router.get('/catalog/categories', verifyToken, async (req, res, next) => {
+    try {
+        res.json(await listCategories());
+    } catch (error) {
+        next(error);
+    }
+});
+
+router.post('/catalog/categories', verifyToken, async (req, res, next) => {
+    try {
+        res.status(201).json(await createCategory(req.body || {}));
+    } catch (error) {
+        next(error);
+    }
+});
+
+router.delete('/catalog/categories/:id', verifyToken, async (req, res, next) => {
+    try {
+        await deleteCategory(req.params.id);
+        res.status(204).end();
+    } catch (error) {
+        next(error);
+    }
+});
+
+router.get('/catalog/products', verifyToken, async (req, res, next) => {
+    try {
+        res.json(await listProducts());
+    } catch (error) {
+        next(error);
+    }
+});
+
+router.post('/catalog/products', verifyToken, async (req, res, next) => {
+    try {
+        res.status(201).json(await createProduct(req.body || {}));
+    } catch (error) {
+        next(error);
+    }
+});
+
+router.delete('/catalog/products/:id', verifyToken, async (req, res, next) => {
+    try {
+        await deleteProduct(req.params.id);
+        res.status(204).end();
+    } catch (error) {
+        next(error);
+    }
+});
+
+router.get('/catalog/consumption-references', verifyToken, async (req, res, next) => {
+    try {
+        res.json(await listConsumptionReferences());
+    } catch (error) {
+        next(error);
+    }
+});
+
+router.post('/catalog/consumption-references', verifyToken, async (req, res, next) => {
+    try {
+        res.status(201).json(await createConsumptionReference(req.body || {}));
+    } catch (error) {
+        next(error);
+    }
+});
+
+router.delete('/catalog/consumption-references/:id', verifyToken, async (req, res, next) => {
+    try {
+        await deleteConsumptionReference(req.params.id);
+        res.status(204).end();
+    } catch (error) {
+        next(error);
+    }
+});
+
+module.exports = router;
diff --git a/backend/server.js b/backend/server.js
index bec0174..e6ab9f1 100644
--- a/backend/server.js
+++ b/backend/server.js
@@ -10,6 +10,7 @@ const analyticsRoutes = require('./routes/analyticsRoutes');
 const userRoutes = require('./routes/userRoutes');
 const productionOrderRoutes = require('./routes/productionOrderRoutes');
 const cuttingSettingsRoutes = require('./routes/cuttingSettingsRoutes');
+const catalogRoutes = require('./routes/catalogRoutes');
 
 const createApp = () => {
     const app = express();
@@ -23,6 +24,7 @@ const createApp = () => {
     app.use('/api', campaignRoutes);
     app.use('/api', productionOrderRoutes);
     app.use('/api', cuttingSettingsRoutes);
+    app.use('/api', catalogRoutes);
     app.use('/api', analyticsRoutes);
     app.use('/api', userRoutes);
     app.use('/api/internal', internalRoutes);
diff --git a/backend/services/catalogService.js b/backend/services/catalogService.js
new file mode 100644
index 0000000..13eda16
--- /dev/null
+++ b/backend/services/catalogService.js
@@ -0,0 +1,268 @@
+const { pool } = require('../db');
+
+const PRODUCT_TYPES = new Set(['finished_product', 'raw_material']);
+
+const normalizeText = (value) => String(value || '').replace(/\s+/g, ' ').trim();
+
+const normalizeNumber = (value) => {
+    if (value === '' || value === null || value === undefined) return null;
+    const number = Number(String(value).replace(',', '.'));
+    return Number.isFinite(number) && number > 0 ? number : null;
+};
+
+const normalizeProductType = (value) => {
+    const normalized = normalizeText(value);
+    return PRODUCT_TYPES.has(normalized) ? normalized : 'finished_product';
+};
+
+const normalizeStringArray = (value) => {
+    if (!Array.isArray(value)) return [];
+    return value.map(item => normalizeText(item)).filter(Boolean);
+};
+
+const normalizeNumericMap = (value) => {
+    if (!value || typeof value !== 'object' || Array.isArray(value)) return {};
+    return Object.entries(value).reduce((normalized, [key, rawValue]) => {
+        const normalizedKey = normalizeText(key).toUpperCase();
+        const number = normalizeNumber(rawValue);
+        if (normalizedKey && number) normalized[normalizedKey] = number;
+        return normalized;
+    }, {});
+};
+
+const mapCategory = (row) => ({
+    id: row.id,
+    name: row.name,
+    description: row.description || '',
+    createdAt: row.created_at,
+    updatedAt: row.updated_at
+});
+
+const mapProduct = (row) => ({
+    id: row.id,
+    type: row.type,
+    sku: row.sku,
+    name: row.name,
+    categoryId: row.category_id,
+    categoryName: row.category_name || '',
+    composition: row.composition || '',
+    notes: row.notes || '',
+    gramature: row.gramature === null ? null : Number(row.gramature),
+    materialYield: row.material_yield === null ? null : Number(row.material_yield),
+    widthCm: row.width_cm === null ? null : Number(row.width_cm),
+    color: row.color || '',
+    subcategory: row.subcategory || '',
+    sizes: row.sizes || [],
+    createdAt: row.created_at,
+    updatedAt: row.updated_at
+});
+
+const mapConsumptionReference = (row) => ({
+    id: row.id,
+    productId: row.product_id,
+    productSku: row.product_sku,
+    productName: row.product_name,
+    materialProductId: row.material_product_id,
+    materialSku: row.material_sku || '',
+    materialName: row.material_name || '',
+    color: row.color || '',
+    generalYield: row.general_yield === null ? null : Number(row.general_yield),
+    sizeYields: row.size_yields || {},
+    sizeAreas: row.size_areas || {},
+    gramature: row.gramature === null ? null : Number(row.gramature),
+    efficiencyPercent: row.efficiency_percent === null ? null : Number(row.efficiency_percent),
+    ribGPerPiece: row.rib_g_per_piece === null ? null : Number(row.rib_g_per_piece),
+    materialCostPerKg: row.material_cost_per_kg === null ? null : Number(row.material_cost_per_kg),
+    createdAt: row.created_at,
+    updatedAt: row.updated_at
+});
+
+const listCategories = async () => {
+    const result = await pool.query(`
+        SELECT id, name, description, created_at, updated_at
+        FROM catalog_categories
+        ORDER BY name
+    `);
+    return result.rows.map(mapCategory);
+};
+
+const createCategory = async ({ name, description }) => {
+    const normalizedName = normalizeText(name);
+    if (!normalizedName) {
+        const error = new Error('Nome da categoria é obrigatório.');
+        error.statusCode = 400;
+        throw error;
+    }
+
+    const result = await pool.query(`
+        INSERT INTO catalog_categories (name, description, updated_at)
+        VALUES ($1, $2, CURRENT_TIMESTAMP)
+        ON CONFLICT (name) DO UPDATE
+        SET description = EXCLUDED.description,
+            updated_at = CURRENT_TIMESTAMP
+        RETURNING id, name, description, created_at, updated_at
+    `, [normalizedName, normalizeText(description) || null]);
+
+    return mapCategory(result.rows[0]);
+};
+
+const deleteCategory = async (id) => {
+    await pool.query('DELETE FROM catalog_categories WHERE id = $1', [id]);
+};
+
+const listProducts = async () => {
+    const result = await pool.query(`
+        SELECT
+            p.id, p.type, p.sku, p.name, p.category_id, c.name AS category_name,
+            p.composition, p.notes, p.gramature, p.material_yield, p.width_cm,
+            p.color, p.subcategory, p.sizes, p.created_at, p.updated_at
+        FROM catalog_products p
+        LEFT JOIN catalog_categories c ON c.id = p.category_id
+        ORDER BY p.type, p.name, p.sku
+    `);
+    return result.rows.map(mapProduct);
+};
+
+const createProduct = async (payload) => {
+    const type = normalizeProductType(payload.type);
+    const sku = normalizeText(payload.sku).toUpperCase();
+    const name = normalizeText(payload.name);
+
+    if (!sku || !name) {
+        const error = new Error('SKU e nome do produto são obrigatórios.');
+        error.statusCode = 400;
+        throw error;
+    }
+
+    const categoryId = Number(payload.categoryId) || null;
+    const result = await pool.query(`
+        INSERT INTO catalog_products (
+            type, sku, name, category_id, composition, notes, gramature,
+            material_yield, width_cm, color, subcategory, sizes, updated_at
+        )
+        VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, CURRENT_TIMESTAMP)
+        ON CONFLICT (sku) DO UPDATE
+        SET type = EXCLUDED.type,
+            name = EXCLUDED.name,
+            category_id = EXCLUDED.category_id,
+            composition = EXCLUDED.composition,
+            notes = EXCLUDED.notes,
+            gramature = EXCLUDED.gramature,
+            material_yield = EXCLUDED.material_yield,
+            width_cm = EXCLUDED.width_cm,
+            color = EXCLUDED.color,
+            subcategory = EXCLUDED.subcategory,
+            sizes = EXCLUDED.sizes,
+            updated_at = CURRENT_TIMESTAMP
+        RETURNING id
+    `, [
+        type,
+        sku,
+        name,
+        categoryId,
+        normalizeText(payload.composition) || null,
+        normalizeText(payload.notes) || null,
+        normalizeNumber(payload.gramature),
+        normalizeNumber(payload.materialYield),
+        normalizeNumber(payload.widthCm),
+        normalizeText(payload.color) || null,
+        normalizeText(payload.subcategory) || null,
+        normalizeStringArray(payload.sizes)
+    ]);
+
+    const products = await listProducts();
+    return products.find(product => product.id === result.rows[0].id);
+};
+
+const deleteProduct = async (id) => {
+    await pool.query('DELETE FROM catalog_products WHERE id = $1', [id]);
+};
+
+const listConsumptionReferences = async () => {
+    const result = await pool.query(`
+        SELECT
+            r.id, r.product_id, p.sku AS product_sku, p.name AS product_name,
+            r.material_product_id, m.sku AS material_sku, m.name AS material_name,
+            r.color, r.general_yield, r.size_yields, r.size_areas,
+            r.gramature, r.efficiency_percent, r.rib_g_per_piece,
+            r.material_cost_per_kg, r.created_at, r.updated_at
+        FROM consumption_references r
+        JOIN catalog_products p ON p.id = r.product_id
+        LEFT JOIN catalog_products m ON m.id = r.material_product_id
+        ORDER BY p.name, m.name NULLS FIRST, r.color NULLS FIRST
+    `);
+    return result.rows.map(mapConsumptionReference);
+};
+
+const createConsumptionReference = async (payload) => {
+    const productId = Number(payload.productId);
+    if (!productId) {
+        const error = new Error('Produto é obrigatório.');
+        error.statusCode = 400;
+        throw error;
+    }
+
+    const sizeYields = normalizeNumericMap(payload.sizeYields);
+    const sizeAreas = normalizeNumericMap(payload.sizeAreas);
+    const generalYield = normalizeNumber(payload.generalYield);
+    const calculatedYield = Object.values(sizeYields).length
+        ? Object.values(sizeYields).reduce((total, value) => total + value, 0) / Object.values(sizeYields).length
+        : null;
+
+    if (!generalYield && !calculatedYield) {
+        const error = new Error('Informe o rendimento geral ou por tamanho.');
+        error.statusCode = 400;
+        throw error;
+    }
+
+    const result = await pool.query(`
+        INSERT INTO consumption_references (
+            product_id, material_product_id, color, general_yield, size_yields,
+            size_areas, gramature, efficiency_percent, rib_g_per_piece,
+            material_cost_per_kg, updated_at
+        )
+        VALUES ($1, $2, $3, $4, $5::jsonb, $6::jsonb, $7, $8, $9, $10, CURRENT_TIMESTAMP)
+        RETURNING id
+    `, [
+        productId,
+        Number(payload.materialProductId) || null,
+        normalizeText(payload.color) || null,
+        generalYield || calculatedYield,
+        JSON.stringify(sizeYields),
+        JSON.stringify(sizeAreas),
+        normalizeNumber(payload.gramature),
+        normalizeNumber(payload.efficiencyPercent),
+        normalizeNumber(payload.ribGPerPiece),
+        normalizeNumber(payload.materialCostPerKg)
+    ]);
+
+    const references = await listConsumptionReferences();
+    return references.find(reference => reference.id === result.rows[0].id);
+};
+
+const deleteConsumptionReference = async (id) => {
+    await pool.query('DELETE FROM consumption_references WHERE id = $1', [id]);
+};
+
+const getCatalogSummary = async () => {
+    const [categories, products, consumptionReferences] = await Promise.all([
+        listCategories(),
+        listProducts(),
+        listConsumptionReferences()
+    ]);
+
+    return { categories, products, consumptionReferences };
+};
+
+module.exports = {
+    createCategory,
+    createConsumptionReference,
+    createProduct,
+    deleteCategory,
+    deleteConsumptionReference,
+    deleteProduct,
+    getCatalogSummary,
+    listCategories,
+    listConsumptionReferences,
+    listProducts
+};
diff --git a/src/App.tsx b/src/App.tsx
index ff81bee..f5e4eec 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -15,6 +15,7 @@ const Clients = React.lazy(() => import('./pages/Clients'));
 const ClientDetails = React.lazy(() => import('./pages/ClientDetails'));
 const Campaigns = React.lazy(() => import('./pages/Campaigns'));
 const Rfm = React.lazy(() => import('./pages/Rfm'));
+const Registrations = React.lazy(() => import('./pages/Registrations'));
 const Login = React.lazy(() => import('./pages/Login'));
 const AdminUsers = React.lazy(() => import('./pages/AdminUsers'));
 
@@ -59,6 +60,7 @@ function App() {
           <Route path="clients/:clientToken" element={<ClientDetails />} />
           <Route path="rfm" element={<Rfm />} />
           <Route path="campaigns" element={<Campaigns />} />
+          <Route path="registrations" element={<Registrations />} />
           <Route path="admin/users" element={<SuperAdminRoute><AdminUsers /></SuperAdminRoute>} />
         </Route>
       </Routes>
diff --git a/src/components/Layout.tsx b/src/components/Layout.tsx
index 58497c7..16dff66 100644
--- a/src/components/Layout.tsx
+++ b/src/components/Layout.tsx
@@ -1,6 +1,6 @@
 import { useState, useEffect } from 'react';
 import { Outlet, Link, useLocation } from 'react-router-dom';
-import { LayoutDashboard, Users, BarChart3, ChevronLeft, ChevronRight, Package, LogOut, Megaphone, Grid3X3, Shield, Moon, Sun, ClipboardList, ShoppingCart, Scissors } from 'lucide-react';
+import { LayoutDashboard, Users, BarChart3, ChevronLeft, ChevronRight, Package, LogOut, Megaphone, Grid3X3, Shield, Moon, Sun, ClipboardList, ShoppingCart, Scissors, Tags } from 'lucide-react';
 import type { DateRange, OrderData } from '../types';
 import { isSuperAdmin, logout } from '../dataService';
 import { rangeForLastDays } from '../dateRanges';
@@ -59,21 +59,34 @@ const Layout = () => {
     setThemeMode(current => current === 'dark' ? 'offwhite' : 'dark');
   };
 
-  const appNavigation = [
-    { name: 'Dashboard', href: '/graph', icon: LayoutDashboard },
-    { name: 'Produtos', href: '/products', icon: Package },
-    { name: 'Reposição', href: '/replenishment', icon: ShoppingCart },
-    { name: 'Corte', href: '/cutting', icon: Scissors },
-    { name: 'Ordens de Produção', href: '/production-orders', icon: ClipboardList },
-    { name: 'Clientes', href: '/clients', icon: Users },
-    { name: 'RFV', href: '/rfm', icon: Grid3X3 },
-    { name: 'Campanhas', href: '/campaigns', icon: Megaphone },
-  ];
   const adminNavigation = isSuperAdmin()
     ? [{ name: 'Usuários', href: '/admin/users', icon: Shield }]
     : [];
   const navigationSections = [
-    { label: 'Painel', items: appNavigation },
+    {
+      label: 'Painel',
+      items: [
+        { name: 'Dashboard', href: '/graph', icon: LayoutDashboard },
+      ],
+    },
+    {
+      label: 'Operação',
+      items: [
+        { name: 'Produtos', href: '/products', icon: Package },
+        { name: 'Cadastros', href: '/registrations', icon: Tags },
+        { name: 'Reposição', href: '/replenishment', icon: ShoppingCart },
+        { name: 'Corte', href: '/cutting', icon: Scissors },
+        { name: 'Ordens de Produção', href: '/production-orders', icon: ClipboardList },
+      ],
+    },
+    {
+      label: 'Comercial',
+      items: [
+        { name: 'Clientes', href: '/clients', icon: Users },
+        { name: 'RFV', href: '/rfm', icon: Grid3X3 },
+        { name: 'Campanhas', href: '/campaigns', icon: Megaphone },
+      ],
+    },
     ...(adminNavigation.length ? [{ label: 'Super admin', items: adminNavigation }] : []),
   ];
 
@@ -103,11 +116,11 @@ const Layout = () => {
           </div>
         )}
 
-        <nav className="flex-1 space-y-6 overflow-y-auto p-4">
+        <nav className="flex-1 space-y-5 overflow-y-auto px-3 py-4">
           {navigationSections.map((section) => (
-            <div key={section.label} className="space-y-2">
+            <div key={section.label} className="space-y-1.5">
               {!isSidebarCollapsed && (
-                <div className="px-3 text-xs font-bold uppercase tracking-widest text-dark-muted">
+                <div className="px-3 pb-1 text-[11px] font-bold uppercase tracking-widest text-dark-muted">
                   {section.label}
                 </div>
               )}
@@ -117,17 +130,17 @@ const Layout = () => {
                   <Link
                     key={item.name}
                     to={item.href}
-                    className={`flex items-center rounded-xl px-4 py-3 transition-all ${
-                      isSidebarCollapsed ? 'justify-center' : 'space-x-3'
+                    className={`group flex min-h-11 items-center rounded-lg px-3 py-2.5 text-sm transition-all ${
+                      isSidebarCollapsed ? 'justify-center' : 'gap-3'
                     } ${
                       isActive 
-                        ? 'bg-brand-primary/12 text-brand-primary font-semibold shadow-md shadow-brand-primary/10 ring-1 ring-brand-primary/15' 
+                        ? 'bg-brand-primary/12 text-brand-primary font-semibold shadow-sm shadow-brand-primary/10 ring-1 ring-brand-primary/15' 
                         : 'text-dark-muted hover:bg-dark-input/70 hover:text-dark-text'
                     }`}
                     title={isSidebarCollapsed ? item.name : undefined}
                   >
-                    <item.icon className="h-5 w-5 shrink-0" />
-                    {!isSidebarCollapsed && <span className="font-medium">{item.name}</span>}
+                    <item.icon className="h-4.5 w-4.5 shrink-0" />
+                    {!isSidebarCollapsed && <span className="truncate font-medium">{item.name}</span>}
                   </Link>
                 );
               })}
diff --git a/src/dataService.ts b/src/dataService.ts
index 176f4ae..218d3df 100644
--- a/src/dataService.ts
+++ b/src/dataService.ts
@@ -1,4 +1,4 @@
-import type { AuthUser, CampaignPreview, CampaignProcessSummary, CampaignQueueSummary, ClientAnalyticsItem, ClientDetailsAnalytics, ClientFilterOptions, ClientMetadataFilters, ClientPurchasePatternAnalytics, CreateUserResult, CuttingSettings, DashboardAnalytics, DateRange, ManagedUser, OrderData, ProductAnalyticsItem, ProductDetailsAnalytics, ProductionOrderSummary, RfmAnalytics, StockData } from './types';
+import type { AuthUser, CampaignPreview, CampaignProcessSummary, CampaignQueueSummary, CatalogCategory, CatalogCategoryPayload, CatalogProduct, CatalogProductPayload, CatalogSummary, ClientAnalyticsItem, ClientDetailsAnalytics, ClientFilterOptions, ClientMetadataFilters, ClientPurchasePatternAnalytics, ConsumptionReference, ConsumptionReferencePayload, CreateUserResult, CuttingSettings, DashboardAnalytics, DateRange, ManagedUser, OrderData, ProductAnalyticsItem, ProductDetailsAnalytics, ProductionOrderSummary, RfmAnalytics, StockData } from './types';
 import { formatDateParam } from './dateRanges';
 
 const API_URL = import.meta.env.VITE_API_URL || '/api';
@@ -209,6 +209,86 @@ export const saveCuttingSettings = async (settings: CuttingSettings): Promise<Cu
     return data as CuttingSettings;
 };
 
+export const fetchCatalogSummary = async (): Promise<CatalogSummary> => {
+    try {
+        const response = await authFetch('/catalog');
+        if (!response.ok) return { categories: [], products: [], consumptionReferences: [] };
+        return await response.json();
+    } catch (error) {
+        console.error('Fetch catalog summary failed', error);
+        return { categories: [], products: [], consumptionReferences: [] };
+    }
+};
+
+export const saveCatalogCategory = async (payload: CatalogCategoryPayload): Promise<CatalogCategory> => {
+    const response = await authFetch('/catalog/categories', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify(payload)
+    });
+
+    const data = await response.json().catch(() => null);
+    if (!response.ok) {
+        throw new Error(data?.error || 'Não foi possível salvar a categoria.');
+    }
+
+    return data as CatalogCategory;
+};
+
+export const deleteCatalogCategory = async (id: number): Promise<void> => {
+    const response = await authFetch(`/catalog/categories/${id}`, { method: 'DELETE' });
+    if (!response.ok) {
+        const data = await response.json().catch(() => null);
+        throw new Error(data?.error || 'Não foi possível excluir a categoria.');
+    }
+};
+
+export const saveCatalogProduct = async (payload: CatalogProductPayload): Promise<CatalogProduct> => {
+    const response = await authFetch('/catalog/products', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify(payload)
+    });
+
+    const data = await response.json().catch(() => null);
+    if (!response.ok) {
+        throw new Error(data?.error || 'Não foi possível salvar o produto.');
+    }
+
+    return data as CatalogProduct;
+};
+
+export const deleteCatalogProduct = async (id: number): Promise<void> => {
+    const response = await authFetch(`/catalog/products/${id}`, { method: 'DELETE' });
+    if (!response.ok) {
+        const data = await response.json().catch(() => null);
+        throw new Error(data?.error || 'Não foi possível excluir o produto.');
+    }
+};
+
+export const saveConsumptionReference = async (payload: ConsumptionReferencePayload): Promise<ConsumptionReference> => {
+    const response = await authFetch('/catalog/consumption-references', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify(payload)
+    });
+
+    const data = await response.json().catch(() => null);
+    if (!response.ok) {
+        throw new Error(data?.error || 'Não foi possível salvar a referência de consumo.');
+    }
+
+    return data as ConsumptionReference;
+};
+
+export const deleteConsumptionReference = async (id: number): Promise<void> => {
+    const response = await authFetch(`/catalog/consumption-references/${id}`, { method: 'DELETE' });
+    if (!response.ok) {
+        const data = await response.json().catch(() => null);
+        throw new Error(data?.error || 'Não foi possível excluir a referência.');
+    }
+};
+
 export const fetchDashboardAnalytics = async (dateRange: DateRange, options?: CacheOptions): Promise<DashboardAnalytics | null> => {
     const path = `/analytics/dashboard?${buildDateRangeParams(dateRange).toString()}`;
     return getCachedAnalytics(path, async () => {
diff --git a/src/index.css b/src/index.css
index c13f6c0..a7df43f 100644
--- a/src/index.css
+++ b/src/index.css
@@ -164,6 +164,7 @@
     color: #9a6700 !important;
   }
 
+  html[data-theme='offwhite'] .text-sky-200,
   html[data-theme='offwhite'] .text-sky-300,
   html[data-theme='offwhite'] .text-sky-400,
   html[data-theme='offwhite'] .text-sky-500 {
@@ -231,6 +232,7 @@
     border-color: rgba(154, 103, 0, 0.30) !important;
   }
 
+  html[data-theme='offwhite'] .border-sky-400\/20,
   html[data-theme='offwhite'] .border-sky-400\/25,
   html[data-theme='offwhite'] .border-sky-400\/30,
   html[data-theme='offwhite'] .border-sky-400\/35 {
diff --git a/src/pages/Registrations.tsx b/src/pages/Registrations.tsx
new file mode 100644
index 0000000..87b88ab
--- /dev/null
+++ b/src/pages/Registrations.tsx
@@ -0,0 +1,700 @@
+import { useEffect, useMemo, useState } from 'react';
+import { Loader2, Package, RefreshCw, Ruler, Save, Tags, Trash2 } from 'lucide-react';
+import {
+  deleteCatalogCategory,
+  deleteCatalogProduct,
+  deleteConsumptionReference,
+  fetchCatalogSummary,
+  saveCatalogCategory,
+  saveCatalogProduct,
+  saveConsumptionReference
+} from '../dataService';
+import type { CatalogCategory, CatalogProduct, CatalogProductType, CatalogSummary, ConsumptionReference } from '../types';
+import { formatColorLabel } from '../displayFormatters';
+
+type RegistrationTab = 'products' | 'categories' | 'references';
+type SaveStatus = 'idle' | 'saving' | 'saved' | 'error';
+
+const emptyCatalog: CatalogSummary = {
+  categories: [],
+  products: [],
+  consumptionReferences: []
+};
+
+const sizeOptions = ['2', '4', '6', '8', '10', '12', '14', '16', 'PP', 'P', 'M', 'G', 'GG', 'XG', 'G1', 'G2', 'G3', 'G4', 'G5'];
+const defaultSizeAreas: Record<string, string> = {
+  P: '0.78',
+  M: '0.85',
+  G: '0.92',
+  GG: '1.00',
+  XG: '1.08',
+  G1: '1.08',
+  G2: '1.16',
+  G3: '1.24',
+  G4: '1.32',
+  G5: '1.40'
+};
+
+const rawMaterialSubcategories = [
+  { value: 'fio', label: 'Fio' },
+  { value: 'malha', label: 'Malha' },
+  { value: 'ribana', label: 'Ribana' },
+  { value: 'malha_fria', label: 'Malha Fria' },
+  { value: 'meia_malha', label: 'Meia Malha 100% Algodao' },
+  { value: 'moletom', label: 'Moletom' },
+  { value: 'dry_fit', label: 'Dry Fit' },
+  { value: 'piquet', label: 'Piquet / Polo' },
+  { value: 'pima', label: 'Pima' },
+  { value: 'poliamida', label: 'Poliamida' },
+  { value: 'outra', label: 'Outra' }
+];
+
+const listPanelClassName = 'rounded-2xl border border-dark-border bg-dark-card shadow-sm';
+const listHeaderClassName = 'flex min-h-[73px] flex-col gap-3 border-b border-dark-border p-4 md:flex-row md:items-center md:justify-between';
+const formPanelClassName = 'rounded-2xl border border-dark-border bg-dark-card p-4 shadow-sm';
+const emptyStateClassName = 'flex min-h-[280px] items-center justify-center px-4 py-10 text-center text-sm font-semibold text-dark-muted';
+const labelClassName = 'text-xs font-bold text-dark-muted';
+const inputClassName = 'mt-1 h-10 w-full rounded-lg border border-dark-border bg-dark-input px-3 text-sm font-bold text-dark-text outline-none focus:border-brand-primary';
+
+const formatNumber = (value: number | null | undefined, maximumFractionDigits = 2) => (
+  value === null || value === undefined
+    ? '-'
+    : new Intl.NumberFormat('pt-BR', { maximumFractionDigits }).format(value)
+);
+
+const numericMapFromStrings = (values: Record<string, string>) => (
+  Object.entries(values).reduce<Record<string, number>>((normalized, [key, value]) => {
+    const number = Number(value.replace(',', '.'));
+    if (Number.isFinite(number) && number > 0) normalized[key] = number;
+    return normalized;
+  }, {})
+);
+
+const getAverageYield = (reference: ConsumptionReference) => {
+  const yields = Object.values(reference.sizeYields || {});
+  if (yields.length) return yields.reduce((total, value) => total + value, 0) / yields.length;
+  return reference.generalYield;
+};
+
+const Registrations = () => {
+  const [catalog, setCatalog] = useState<CatalogSummary>(emptyCatalog);
+  const [isLoading, setIsLoading] = useState(true);
+  const [activeTab, setActiveTab] = useState<RegistrationTab>('products');
+  const [productFilter, setProductFilter] = useState<'all' | CatalogProductType>('all');
+  const [status, setStatus] = useState<SaveStatus>('idle');
+  const [feedback, setFeedback] = useState('');
+
+  const [categoryForm, setCategoryForm] = useState({ name: '', description: '' });
+  const [productForm, setProductForm] = useState({
+    type: 'finished_product' as CatalogProductType,
+    sku: '',
+    name: '',
+    categoryId: '',
+    composition: '',
+    notes: '',
+    gramature: '',
+    materialYield: '',
+    widthCm: '',
+    color: '',
+    subcategory: 'malha',
+    sizes: ['P', 'M', 'G', 'GG'] as string[]
+  });
+  const [referenceForm, setReferenceForm] = useState({
+    productId: '',
+    materialProductId: '',
+    color: '',
+    generalYield: '',
+    gramature: '',
+    efficiencyPercent: '85',
+    ribGPerPiece: '',
+    materialCostPerKg: ''
+  });
+  const [sizeAreas, setSizeAreas] = useState<Record<string, string>>(defaultSizeAreas);
+  const [sizeYields, setSizeYields] = useState<Record<string, string>>({});
+
+  const loadCatalog = async () => {
+    setIsLoading(true);
+    const summary = await fetchCatalogSummary();
+    setCatalog(summary);
+    setIsLoading(false);
+  };
+
+  useEffect(() => {
+    let isMounted = true;
+    fetchCatalogSummary().then(summary => {
+      if (!isMounted) return;
+      setCatalog(summary);
+      setIsLoading(false);
+    }).catch(error => {
+      console.error('Initial catalog load failed', error);
+      if (!isMounted) return;
+      setIsLoading(false);
+    });
+
+    return () => {
+      isMounted = false;
+    };
+  }, []);
+
+  const finishedProducts = useMemo(
+    () => catalog.products.filter(product => product.type === 'finished_product'),
+    [catalog.products]
+  );
+
+  const rawMaterials = useMemo(
+    () => catalog.products.filter(product => product.type === 'raw_material'),
+    [catalog.products]
+  );
+
+  const selectedReferenceProduct = useMemo(
+    () => catalog.products.find(product => String(product.id) === referenceForm.productId),
+    [catalog.products, referenceForm.productId]
+  );
+
+  const referenceSizes = selectedReferenceProduct?.sizes?.length ? selectedReferenceProduct.sizes : ['P', 'M', 'G', 'GG'];
+
+  const filteredProducts = useMemo(() => {
+    if (productFilter === 'all') return catalog.products;
+    return catalog.products.filter(product => product.type === productFilter);
+  }, [catalog.products, productFilter]);
+
+  const runAction = async (action: () => Promise<void>, successMessage: string) => {
+    setStatus('saving');
+    setFeedback('');
+    try {
+      await action();
+      await loadCatalog();
+      setStatus('saved');
+      setFeedback(successMessage);
+    } catch (error) {
+      setStatus('error');
+      setFeedback(error instanceof Error ? error.message : 'Nao foi possivel salvar.');
+    }
+  };
+
+  const saveCategory = () => runAction(async () => {
+    await saveCatalogCategory(categoryForm);
+    setCategoryForm({ name: '', description: '' });
+  }, 'Categoria salva.');
+
+  const saveProduct = () => runAction(async () => {
+    await saveCatalogProduct({
+      ...productForm,
+      categoryId: productForm.categoryId ? Number(productForm.categoryId) : null,
+      sizes: productForm.type === 'finished_product' ? productForm.sizes : []
+    });
+    setProductForm(current => ({
+      ...current,
+      sku: '',
+      name: '',
+      composition: '',
+      notes: '',
+      gramature: '',
+      materialYield: '',
+      widthCm: '',
+      color: ''
+    }));
+  }, 'Produto salvo.');
+
+  const calculateSizeYields = () => {
+    const gramature = Number(referenceForm.gramature.replace(',', '.'));
+    const efficiency = Number(referenceForm.efficiencyPercent.replace(',', '.')) || 85;
+    const rib = Number(referenceForm.ribGPerPiece.replace(',', '.')) || 0;
+
+    if (!Number.isFinite(gramature) || gramature <= 0) {
+      setStatus('error');
+      setFeedback('Informe a gramatura para calcular o rendimento.');
+      return;
+    }
+
+    const nextYields = referenceSizes.reduce<Record<string, string>>((values, size) => {
+      const area = Number((sizeAreas[size] || '').replace(',', '.'));
+      if (!Number.isFinite(area) || area <= 0) return values;
+      const fabricGrams = gramature * area / (efficiency / 100);
+      const pieceGrams = fabricGrams + rib;
+      const yieldValue = pieceGrams > 0 ? 1000 / pieceGrams : 0;
+      values[size] = yieldValue.toFixed(2);
+      return values;
+    }, {});
+
+    setSizeYields(nextYields);
+    setStatus('idle');
+    setFeedback(`${Object.keys(nextYields).length} tamanhos calculados.`);
+  };
+
+  const saveReference = () => runAction(async () => {
+    await saveConsumptionReference({
+      ...referenceForm,
+      productId: Number(referenceForm.productId),
+      materialProductId: referenceForm.materialProductId ? Number(referenceForm.materialProductId) : null,
+      sizeAreas: numericMapFromStrings(sizeAreas),
+      sizeYields: numericMapFromStrings(sizeYields)
+    });
+    setReferenceForm(current => ({
+      ...current,
+      productId: '',
+      materialProductId: '',
+      color: '',
+      generalYield: ''
+    }));
+    setSizeYields({});
+  }, 'Referencia salva.');
+
+  const removeCategory = (category: CatalogCategory) => runAction(
+    () => deleteCatalogCategory(category.id),
+    `Categoria ${category.name} excluida.`
+  );
+
+  const removeProduct = (product: CatalogProduct) => runAction(
+    () => deleteCatalogProduct(product.id),
+    `Produto ${product.sku} excluido.`
+  );
+
+  const removeReference = (reference: ConsumptionReference) => runAction(
+    () => deleteConsumptionReference(reference.id),
+    `Referencia ${reference.productSku} excluida.`
+  );
+
+  const toggleProductSize = (size: string) => {
+    setProductForm(current => ({
+      ...current,
+      sizes: current.sizes.includes(size)
+        ? current.sizes.filter(item => item !== size)
+        : [...current.sizes, size]
+    }));
+  };
+
+  const tabItems: Array<{ key: RegistrationTab; label: string; icon: typeof Package; count: number }> = [
+    { key: 'products', label: 'Produtos', icon: Package, count: catalog.products.length },
+    { key: 'categories', label: 'Categorias', icon: Tags, count: catalog.categories.length },
+    { key: 'references', label: 'Referencia de Consumo', icon: Ruler, count: catalog.consumptionReferences.length }
+  ];
+
+  return (
+    <div className="space-y-6">
+      <div className="flex flex-col gap-4 2xl:flex-row 2xl:items-start 2xl:justify-between">
+        <div>
+          <h1 className="mb-2 text-2xl font-bold text-zinc-900 dark:text-dark-text">Cadastros</h1>
+          <p className="font-medium text-zinc-500 dark:text-dark-muted">
+            Base de produtos, categorias e referencias de consumo usadas pelo corte.
+          </p>
+        </div>
+        <button
+          type="button"
+          onClick={() => void loadCatalog()}
+          className="inline-flex items-center justify-center gap-2 rounded-xl border border-dark-border bg-dark-card px-4 py-2.5 text-sm font-bold text-dark-text transition-colors hover:border-brand-primary cursor-pointer"
+        >
+          <RefreshCw className="h-4 w-4 text-brand-primary" />
+          Atualizar
+        </button>
+      </div>
+
+      <div className="grid grid-cols-1 gap-3 md:grid-cols-3">
+        {tabItems.map(item => {
+          const Icon = item.icon;
+          const isActive = activeTab === item.key;
+          return (
+            <button
+              key={item.key}
+              type="button"
+              onClick={() => setActiveTab(item.key)}
+              className={`flex items-center justify-between rounded-2xl border p-4 text-left transition-colors cursor-pointer ${isActive ? 'border-brand-primary/40 bg-brand-primary/10 text-brand-primary' : 'border-dark-border bg-dark-card text-dark-text hover:border-brand-primary/40'}`}
+            >
+              <span className="flex items-center gap-3">
+                <span className="rounded-xl border border-dark-border bg-dark-input p-2">
+                  <Icon className="h-5 w-5" />
+                </span>
+                <span className="font-bold">{item.label}</span>
+              </span>
+              <span className="rounded-full border border-dark-border bg-dark-input px-2.5 py-1 text-xs font-bold text-dark-muted">
+                {item.count}
+              </span>
+            </button>
+          );
+        })}
+      </div>
+
+      {feedback && (
+        <div className={`rounded-2xl border px-4 py-3 text-sm font-bold ${status === 'error' ? 'border-red-400/30 bg-red-400/10 text-red-300' : 'border-emerald-400/30 bg-emerald-400/10 text-emerald-300'}`}>
+          {feedback}
+        </div>
+      )}
+
+      {isLoading ? (
+        <div className="flex h-48 items-center justify-center rounded-2xl border border-dark-border bg-dark-card text-brand-primary">
+          <Loader2 className="h-7 w-7 animate-spin" />
+        </div>
+      ) : (
+        <>
+          {activeTab === 'products' && (
+            <div className="grid grid-cols-1 gap-6 xl:grid-cols-[1fr_420px]">
+              <div className={listPanelClassName}>
+                <div className={listHeaderClassName}>
+                  <div>
+                    <h2 className="text-sm font-bold text-dark-text">Produtos cadastrados</h2>
+                    <p className="mt-1 text-xs font-semibold text-dark-muted">Produtos acabados e materias-primas do corte.</p>
+                  </div>
+                  <select
+                    value={productFilter}
+                    onChange={(event) => setProductFilter(event.target.value as 'all' | CatalogProductType)}
+                    className="h-10 rounded-xl border border-dark-border bg-dark-input px-3 text-sm font-bold text-dark-text outline-none focus:border-brand-primary cursor-pointer"
+                  >
+                    <option value="all">Todos</option>
+                    <option value="finished_product">Produtos acabados</option>
+                    <option value="raw_material">Materias-primas</option>
+                  </select>
+                </div>
+                <div className="divide-y divide-dark-border">
+                  {filteredProducts.map(product => (
+                    <div key={product.id} className="flex flex-col gap-3 p-4 md:flex-row md:items-center md:justify-between">
+                      <div className="min-w-0">
+                        <div className="flex flex-wrap items-center gap-2">
+                          <span className="font-mono text-xs font-bold text-brand-primary">{product.sku}</span>
+                          <span className="rounded-full border border-dark-border bg-dark-input px-2 py-0.5 text-[10px] font-bold text-dark-muted">
+                            {product.type === 'finished_product' ? 'Produto acabado' : 'Materia-prima'}
+                          </span>
+                        </div>
+                        <h3 className="mt-1 truncate text-sm font-bold text-dark-text">{product.name}</h3>
+                        <p className="mt-1 text-xs font-semibold text-dark-muted">
+                          {[product.categoryName, product.composition, product.color ? formatColorLabel(product.color) : '']
+                            .filter(Boolean)
+                            .join(' · ') || 'Sem detalhes'}
+                        </p>
+                      </div>
+                      <button
+                        type="button"
+                        onClick={() => void removeProduct(product)}
+                        className="inline-flex h-9 w-9 shrink-0 items-center justify-center rounded-lg border border-dark-border bg-dark-input text-dark-muted transition-colors hover:border-red-400/40 hover:text-red-300 cursor-pointer"
+                        title="Excluir produto"
+                      >
+                        <Trash2 className="h-4 w-4" />
+                      </button>
+                    </div>
+                  ))}
+                  {!filteredProducts.length && (
+                    <div className={emptyStateClassName}>Nenhum produto cadastrado.</div>
+                  )}
+                </div>
+              </div>
+
+              <div className={formPanelClassName}>
+                <h2 className="text-sm font-bold text-dark-text">Cadastrar produto / materia-prima</h2>
+                <div className="mt-4 space-y-3">
+                  <div className="grid grid-cols-1 gap-3 sm:grid-cols-2">
+                    <label className={labelClassName}>
+                      Tipo
+                      <select
+                        value={productForm.type}
+                        onChange={(event) => setProductForm(current => ({ ...current, type: event.target.value as CatalogProductType }))}
+                        className={inputClassName}
+                      >
+                        <option value="finished_product">Produto acabado</option>
+                        <option value="raw_material">Materia-prima</option>
+                      </select>
+                    </label>
+                    <label className={labelClassName}>
+                      SKU
+                      <input
+                        value={productForm.sku}
+                        onChange={(event) => setProductForm(current => ({ ...current, sku: event.target.value }))}
+                        placeholder="ex: BLCS"
+                        className={`${inputClassName} font-mono`}
+                      />
+                    </label>
+                  </div>
+                  <label className={`block ${labelClassName}`}>
+                    Nome
+                    <input
+                      value={productForm.name}
+                      onChange={(event) => setProductForm(current => ({ ...current, name: event.target.value }))}
+                      placeholder="Nome do produto"
+                      className={inputClassName}
+                    />
+                  </label>
+                  <div className="grid grid-cols-1 gap-3 sm:grid-cols-2">
+                    <label className={labelClassName}>
+                      Categoria
+                      <select
+                        value={productForm.categoryId}
+                        onChange={(event) => setProductForm(current => ({ ...current, categoryId: event.target.value }))}
+                        className={inputClassName}
+                      >
+                        <option value="">Sem categoria</option>
+                        {catalog.categories.map(category => <option key={category.id} value={category.id}>{category.name}</option>)}
+                      </select>
+                    </label>
+                    <label className={labelClassName}>
+                      Composicao
+                      <input
+                        value={productForm.composition}
+                        onChange={(event) => setProductForm(current => ({ ...current, composition: event.target.value }))}
+                        placeholder="ex: 100% Algodao"
+                        className={inputClassName}
+                      />
+                    </label>
+                  </div>
+
+                  {productForm.type === 'raw_material' ? (
+                    <>
+                      <div className="grid grid-cols-1 gap-3 sm:grid-cols-3">
+                        <label className={labelClassName}>
+                          Gramatura
+                          <input inputMode="decimal" value={productForm.gramature} onChange={(event) => setProductForm(current => ({ ...current, gramature: event.target.value }))} className={inputClassName} />
+                        </label>
+                        <label className={labelClassName}>
+                          Rendimento m/kg
+                          <input inputMode="decimal" value={productForm.materialYield} onChange={(event) => setProductForm(current => ({ ...current, materialYield: event.target.value }))} className={inputClassName} />
+                        </label>
+                        <label className={labelClassName}>
+                          Largura cm
+                          <input inputMode="decimal" value={productForm.widthCm} onChange={(event) => setProductForm(current => ({ ...current, widthCm: event.target.value }))} className={inputClassName} />
+                        </label>
+                      </div>
+                      <div className="grid grid-cols-1 gap-3 sm:grid-cols-2">
+                        <label className={labelClassName}>
+                          Cor
+                          <input value={productForm.color} onChange={(event) => setProductForm(current => ({ ...current, color: event.target.value }))} placeholder="ex: Preto" className={inputClassName} />
+                        </label>
+                        <label className={labelClassName}>
+                          Subcategoria
+                          <select value={productForm.subcategory} onChange={(event) => setProductForm(current => ({ ...current, subcategory: event.target.value }))} className={inputClassName}>
+                            {rawMaterialSubcategories.map(option => <option key={option.value} value={option.value}>{option.label}</option>)}
+                          </select>
+                        </label>
+                      </div>
+                    </>
+                  ) : (
+                    <div>
+                      <p className="mb-2 text-xs font-bold text-dark-muted">Tamanhos disponiveis</p>
+                      <div className="flex flex-wrap gap-2">
+                        {sizeOptions.map(size => (
+                          <button
+                            key={size}
+                            type="button"
+                            onClick={() => toggleProductSize(size)}
+                            className={`rounded-full border px-3 py-1.5 text-xs font-bold transition-colors cursor-pointer ${productForm.sizes.includes(size) ? 'border-brand-primary bg-brand-primary/15 text-brand-primary' : 'border-dark-border bg-dark-input text-dark-muted hover:text-dark-text'}`}
+                          >
+                            {size}
+                          </button>
+                        ))}
+                      </div>
+                    </div>
+                  )}
+
+                  <label className={`block ${labelClassName}`}>
+                    Observacoes
+                    <input
+                      value={productForm.notes}
+                      onChange={(event) => setProductForm(current => ({ ...current, notes: event.target.value }))}
+                      placeholder="Opcional"
+                      className={inputClassName}
+                    />
+                  </label>
+                  <button
+                    type="button"
+                    onClick={() => void saveProduct()}
+                    disabled={status === 'saving'}
+                    className="inline-flex h-11 w-full items-center justify-center gap-2 rounded-xl bg-brand-primary px-4 text-sm font-bold text-brand-contrast transition-colors hover:bg-brand-primary/90 disabled:cursor-not-allowed disabled:opacity-50 cursor-pointer"
+                  >
+                    <Save className="h-4 w-4" />
+                    Salvar produto
+                  </button>
+                </div>
+              </div>
+            </div>
+          )}
+
+          {activeTab === 'categories' && (
+            <div className="grid grid-cols-1 gap-6 xl:grid-cols-[1fr_420px]">
+              <div className={listPanelClassName}>
+                <div className={listHeaderClassName}>
+                  <div>
+                    <h2 className="text-sm font-bold text-dark-text">Categorias cadastradas</h2>
+                    <p className="mt-1 text-xs font-semibold text-dark-muted">Classificacao usada no cadastro de produtos.</p>
+                  </div>
+                </div>
+                <div className="divide-y divide-dark-border">
+                  {catalog.categories.map(category => (
+                    <div key={category.id} className="flex items-center justify-between gap-3 p-4">
+                      <div>
+                        <h3 className="text-sm font-bold text-dark-text">{category.name}</h3>
+                        <p className="mt-1 text-xs font-semibold text-dark-muted">{category.description || 'Sem descricao'}</p>
+                      </div>
+                      <button type="button" onClick={() => void removeCategory(category)} className="inline-flex h-9 w-9 items-center justify-center rounded-lg border border-dark-border bg-dark-input text-dark-muted transition-colors hover:border-red-400/40 hover:text-red-300 cursor-pointer">
+                        <Trash2 className="h-4 w-4" />
+                      </button>
+                    </div>
+                  ))}
+                  {!catalog.categories.length && <div className={emptyStateClassName}>Nenhuma categoria cadastrada.</div>}
+                </div>
+              </div>
+
+              <div className={formPanelClassName}>
+                <h2 className="text-sm font-bold text-dark-text">Nova categoria</h2>
+                <div className="mt-4 space-y-3">
+                  <label className={`block ${labelClassName}`}>
+                    Nome
+                    <input value={categoryForm.name} onChange={(event) => setCategoryForm(current => ({ ...current, name: event.target.value }))} placeholder="ex: Camiseta Regular" className={inputClassName} />
+                  </label>
+                  <label className={`block ${labelClassName}`}>
+                    Descricao
+                    <input value={categoryForm.description} onChange={(event) => setCategoryForm(current => ({ ...current, description: event.target.value }))} placeholder="Opcional" className={inputClassName} />
+                  </label>
+                  <button type="button" onClick={() => void saveCategory()} disabled={status === 'saving'} className="inline-flex h-11 w-full items-center justify-center gap-2 rounded-xl bg-brand-primary px-4 text-sm font-bold text-brand-contrast transition-colors hover:bg-brand-primary/90 disabled:cursor-not-allowed disabled:opacity-50 cursor-pointer">
+                    <Save className="h-4 w-4" />
+                    Salvar categoria
+                  </button>
+                </div>
+              </div>
+            </div>
+          )}
+
+          {activeTab === 'references' && (
+            <div className="grid grid-cols-1 gap-6 xl:grid-cols-[1fr_420px]">
+              <div className={listPanelClassName}>
+                <div className={listHeaderClassName}>
+                  <div>
+                    <h2 className="text-sm font-bold text-dark-text">Referencias cadastradas</h2>
+                    <p className="mt-1 text-xs font-semibold text-dark-muted">Rendimento pç/kg por produto, malha, cor e tamanho.</p>
+                  </div>
+                  <span className="rounded-full border border-dark-border bg-dark-input px-3 py-1 text-xs font-bold text-dark-muted">
+                    {catalog.consumptionReferences.length} referencias
+                  </span>
+                </div>
+                <div className="divide-y divide-dark-border">
+                  {catalog.consumptionReferences.map(reference => (
+                    <div key={reference.id} className="flex flex-col gap-3 p-4 md:flex-row md:items-start md:justify-between">
+                      <div className="min-w-0">
+                        <div className="flex flex-wrap items-center gap-2">
+                          <span className="font-mono text-xs font-bold text-brand-primary">{reference.productSku}</span>
+                          <span className="rounded-full border border-dark-border bg-dark-input px-2 py-0.5 text-[10px] font-bold text-dark-muted">
+                            {Object.keys(reference.sizeYields || {}).length ? 'Por tamanho' : 'Geral'}
+                          </span>
+                        </div>
+                        <h3 className="mt-1 truncate text-sm font-bold text-dark-text">{reference.productName}</h3>
+                        <p className="mt-1 text-xs font-semibold text-dark-muted">
+                          {[reference.materialName, reference.color ? formatColorLabel(reference.color) : 'todas as cores'].filter(Boolean).join(' · ')}
+                        </p>
+                        {!!Object.keys(reference.sizeYields || {}).length && (
+                          <div className="mt-2 flex flex-wrap gap-1.5">
+                            {Object.entries(reference.sizeYields).map(([size, value]) => (
+                              <span key={size} className="rounded-full border border-dark-border bg-dark-input px-2 py-0.5 text-[10px] font-bold text-dark-muted">
+                                {size}: {formatNumber(value)}
+                              </span>
+                            ))}
+                          </div>
+                        )}
+                      </div>
+                      <div className="flex shrink-0 items-start gap-3">
+                        <div className="text-right">
+                          <div className="text-lg font-bold text-emerald-300">{formatNumber(getAverageYield(reference), 3)} pç/kg</div>
+                          <div className="text-[10px] font-bold uppercase tracking-widest text-dark-muted">
+                            {Object.keys(reference.sizeYields || {}).length ? 'media' : 'geral'}
+                          </div>
+                        </div>
+                        <button type="button" onClick={() => void removeReference(reference)} className="inline-flex h-9 w-9 items-center justify-center rounded-lg border border-dark-border bg-dark-input text-dark-muted transition-colors hover:border-red-400/40 hover:text-red-300 cursor-pointer">
+                          <Trash2 className="h-4 w-4" />
+                        </button>
+                      </div>
+                    </div>
+                  ))}
+                  {!catalog.consumptionReferences.length && (
+                    <div className={emptyStateClassName}>
+                      Nenhuma referencia cadastrada.
+                    </div>
+                  )}
+                </div>
+              </div>
+
+              <div className={formPanelClassName}>
+                <div>
+                  <h2 className="text-sm font-bold text-dark-text">Nova referencia de consumo</h2>
+                  <p className="mt-1 text-xs font-semibold text-dark-muted">
+                    Defina pç/kg por produto, malha e cor para o calculo do corte.
+                  </p>
+                </div>
+                <div className="mt-4 space-y-4">
+                  <div className="grid grid-cols-1 gap-3 sm:grid-cols-2">
+                    <label className={labelClassName}>
+                      Produto
+                      <select value={referenceForm.productId} onChange={(event) => setReferenceForm(current => ({ ...current, productId: event.target.value }))} className={inputClassName}>
+                        <option value="">Selecione...</option>
+                        {finishedProducts.map(product => <option key={product.id} value={product.id}>{product.name} ({product.sku})</option>)}
+                      </select>
+                    </label>
+                    <label className={labelClassName}>
+                      Malha
+                      <select value={referenceForm.materialProductId} onChange={(event) => setReferenceForm(current => ({ ...current, materialProductId: event.target.value }))} className={inputClassName}>
+                        <option value="">Qualquer</option>
+                        {rawMaterials.map(product => <option key={product.id} value={product.id}>{product.name}</option>)}
+                      </select>
+                    </label>
+                  </div>
+                  <div className="grid grid-cols-1 gap-3 sm:grid-cols-2">
+                    <label className={labelClassName}>
+                      Cor
+                      <input value={referenceForm.color} onChange={(event) => setReferenceForm(current => ({ ...current, color: event.target.value }))} placeholder="Todas as cores" className={inputClassName} />
+                    </label>
+                    <label className={labelClassName}>
+                      Rendimento geral
+                      <input inputMode="decimal" value={referenceForm.generalYield} onChange={(event) => setReferenceForm(current => ({ ...current, generalYield: event.target.value }))} placeholder="ex: 5,36" className={inputClassName} />
+                    </label>
+                  </div>
+
+                  <div className="rounded-xl border border-dark-border bg-dark-input/45 p-3">
+                    <div className="mb-3 flex flex-col gap-1 sm:flex-row sm:items-center sm:justify-between">
+                      <div>
+                        <h3 className="text-xs font-bold uppercase tracking-widest text-dark-text">Calculo por gramatura</h3>
+                        <p className="mt-1 text-[11px] font-semibold text-dark-muted">Opcional. Preenche o pç/kg dos tamanhos abaixo.</p>
+                      </div>
+                      <button type="button" onClick={calculateSizeYields} className="inline-flex h-9 items-center justify-center gap-2 rounded-lg border border-dark-border bg-dark-card px-3 text-xs font-bold text-dark-text transition-colors hover:border-brand-primary cursor-pointer">
+                        <Ruler className="h-3.5 w-3.5 text-brand-primary" />
+                        Calcular
+                      </button>
+                    </div>
+                    <div className="grid grid-cols-1 gap-3 sm:grid-cols-2">
+                      <label className={labelClassName}>Gramatura<input inputMode="decimal" value={referenceForm.gramature} onChange={(event) => setReferenceForm(current => ({ ...current, gramature: event.target.value }))} placeholder="ex: 180" className={inputClassName} /></label>
+                      <label className={labelClassName}>Aproveitamento %<input inputMode="decimal" value={referenceForm.efficiencyPercent} onChange={(event) => setReferenceForm(current => ({ ...current, efficiencyPercent: event.target.value }))} className={inputClassName} /></label>
+                      <label className={labelClassName}>Ribana g/peça<input inputMode="decimal" value={referenceForm.ribGPerPiece} onChange={(event) => setReferenceForm(current => ({ ...current, ribGPerPiece: event.target.value }))} placeholder="ex: 18" className={inputClassName} /></label>
+                      <label className={labelClassName}>Custo R$/kg<input inputMode="decimal" value={referenceForm.materialCostPerKg} onChange={(event) => setReferenceForm(current => ({ ...current, materialCostPerKg: event.target.value }))} placeholder="opcional" className={inputClassName} /></label>
+                    </div>
+                  </div>
+
+                  <div>
+                    <div className="mb-2 flex items-center justify-between gap-3">
+                      <p className="text-xs font-bold text-dark-muted">Rendimento por tamanho</p>
+                      <span className="text-[11px] font-semibold text-dark-muted">area m² / pç/kg</span>
+                    </div>
+                    <div className="overflow-hidden rounded-xl border border-dark-border">
+                      <div className="grid grid-cols-[56px_1fr_1fr] gap-2 border-b border-dark-border bg-dark-input px-3 py-2 text-[10px] font-bold uppercase tracking-widest text-dark-muted">
+                        <span>Tam.</span>
+                        <span>Area</span>
+                        <span>Rendimento</span>
+                      </div>
+                      {referenceSizes.map(size => (
+                        <div key={size} className="grid grid-cols-[56px_1fr_1fr] items-center gap-2 border-b border-dark-border px-3 py-2 last:border-b-0">
+                          <div className="text-xs font-bold text-dark-text">{size}</div>
+                          <input value={sizeAreas[size] || ''} onChange={(event) => setSizeAreas(current => ({ ...current, [size]: event.target.value }))} placeholder="area" className="h-8 w-full rounded-lg border border-dark-border bg-dark-input px-2 text-xs font-bold text-dark-text outline-none focus:border-brand-primary" />
+                          <input value={sizeYields[size] || ''} onChange={(event) => setSizeYields(current => ({ ...current, [size]: event.target.value }))} placeholder="pç/kg" className="h-8 w-full rounded-lg border border-dark-border bg-dark-input px-2 text-xs font-bold text-dark-text outline-none focus:border-brand-primary" />
+                        </div>
+                      ))}
+                    </div>
+                  </div>
+
+                  <button type="button" onClick={() => void saveReference()} disabled={status === 'saving'} className="inline-flex h-11 w-full items-center justify-center gap-2 rounded-xl bg-brand-primary px-4 text-sm font-bold text-brand-contrast transition-colors hover:bg-brand-primary/90 disabled:cursor-not-allowed disabled:opacity-50 cursor-pointer">
+                    <Save className="h-4 w-4" />
+                    Salvar referencia
+                  </button>
+                </div>
+              </div>
+
+            </div>
+          )}
+        </>
+      )}
+
+    </div>
+  );
+};
+
+export default Registrations;
diff --git a/src/types.ts b/src/types.ts
index 5804723..a2737c6 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -78,6 +78,94 @@ export interface CuttingSettings {
   productOverrides: Record<string, CutProductOverride>;
 }
 
+export type CatalogProductType = 'finished_product' | 'raw_material';
+
+export interface CatalogCategory {
+  id: number;
+  name: string;
+  description: string;
+  createdAt: string;
+  updatedAt: string;
+}
+
+export interface CatalogProduct {
+  id: number;
+  type: CatalogProductType;
+  sku: string;
+  name: string;
+  categoryId: number | null;
+  categoryName: string;
+  composition: string;
+  notes: string;
+  gramature: number | null;
+  materialYield: number | null;
+  widthCm: number | null;
+  color: string;
+  subcategory: string;
+  sizes: string[];
+  createdAt: string;
+  updatedAt: string;
+}
+
+export interface ConsumptionReference {
+  id: number;
+  productId: number;
+  productSku: string;
+  productName: string;
+  materialProductId: number | null;
+  materialSku: string;
+  materialName: string;
+  color: string;
+  generalYield: number | null;
+  sizeYields: Record<string, number>;
+  sizeAreas: Record<string, number>;
+  gramature: number | null;
+  efficiencyPercent: number | null;
+  ribGPerPiece: number | null;
+  materialCostPerKg: number | null;
+  createdAt: string;
+  updatedAt: string;
+}
+
+export interface CatalogSummary {
+  categories: CatalogCategory[];
+  products: CatalogProduct[];
+  consumptionReferences: ConsumptionReference[];
+}
+
+export type CatalogCategoryPayload = {
+  name: string;
+  description?: string;
+};
+
+export type CatalogProductPayload = {
+  type: CatalogProductType;
+  sku: string;
+  name: string;
+  categoryId?: number | null;
+  composition?: string;
+  notes?: string;
+  gramature?: number | string | null;
+  materialYield?: number | string | null;
+  widthCm?: number | string | null;
+  color?: string;
+  subcategory?: string;
+  sizes?: string[];
+};
+
+export type ConsumptionReferencePayload = {
+  productId: number | string;
+  materialProductId?: number | string | null;
+  color?: string;
+  generalYield?: number | string | null;
+  sizeYields?: Record<string, number | string>;
+  sizeAreas?: Record<string, number | string>;
+  gramature?: number | string | null;
+  efficiencyPercent?: number | string | null;
+  ribGPerPiece?: number | string | null;
+  materialCostPerKg?: number | string | null;
+};
+
 export interface DateRange {
   start: Date;
   end: Date;