refactor: migrate frontend from shadcn/Tailwind to Mantine v9

Reescribe todos los componentes UI para usar Mantine v9 en lugar de shadcn/Tailwind.
Elimina cn(), CVA, components.json, theme_provider custom y globals.css con Tailwind.
Añade 25+ componentes nuevos (AppShell, AuthForm, DatePickerInput, Dropzone, etc.)
y MantineProvider como wrapper estándar del sistema de temas.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.claude/commands/frontend.md

@@ -2,6 +2,17 @@
 
 Eres un arquitecto frontend experto. Esta skill se activa cuando el usuario pide crear un proyecto frontend, una app con UI, un componente nuevo, o una feature frontend. Tu trabajo es garantizar que TODO el frontend se construya usando el sistema de funciones reutilizables del registry y las mejores practicas actuales.
 
+## Stack
+
+- **pnpm** — gestor de paquetes
+- **React 19** — UI library
+- **Vite 8** — build tool
+- **Mantine v9** — component library + styling (props, no CSS manual)
+- **Phosphor Icons** — `@phosphor-icons/react`
+- **Recharts** — charts (via `@mantine/charts`)
+
+**NO usar:** Tailwind, shadcn, CVA, clsx, cn(), lucide-react, styled-components, emotion, CSS-in-JS runtime.
+
 ---
 
 ## PASO 1: Consultar el registry (OBLIGATORIO)
@@ -56,11 +67,12 @@ apps/{nombre}/
     package.json
     vite.config.ts
     tsconfig.json
+    postcss.config.cjs
     index.html
     src/
-      main.tsx              # Entry point
-      App.tsx               # Root con ThemeProvider + Router
-      app.css               # Tokens CSS — NUNCA hardcodear colores
+      main.tsx              # Entry point con MantineProvider
+      App.tsx               # Root con Router
+      app.css               # Minimal (font-smoothing solo)
       features/             # Feature-based co-location
         {feature}/
           components/       # Componentes del feature
@@ -87,21 +99,20 @@ apps/{nombre}/
     "preview": "vite preview --host"
   },
   "dependencies": {
-    "@base-ui/react": "^1.3.0",
-    "class-variance-authority": "^0.7.1",
-    "clsx": "^2.1.1",
-    "lucide-react": "^0.577.0",
+    "@mantine/core": "^9.0.0",
+    "@mantine/hooks": "^9.0.0",
+    "@mantine/notifications": "^9.0.0",
+    "@phosphor-icons/react": "^2.1.10",
     "react": "^19.2.4",
-    "react-dom": "^19.2.4",
-    "recharts": "^2.15.0",
-    "tailwind-merge": "^3.5.0"
+    "react-dom": "^19.2.4"
   },
   "devDependencies": {
-    "@tailwindcss/vite": "^4.2.2",
     "@types/react": "^19.2.14",
     "@types/react-dom": "^19.2.3",
     "@vitejs/plugin-react": "^6.0.0",
-    "tailwindcss": "^4.2.2",
+    "postcss": "^8.5.8",
+    "postcss-preset-mantine": "^1.18.0",
+    "postcss-simple-vars": "^7.0.1",
     "typescript": "~5.9.3",
     "vite": "^8.0.0"
   }
@@ -109,10 +120,10 @@ apps/{nombre}/
 ```
 
 Agregar dependencias extras segun necesidad:
+- **Charts**: `@mantine/charts`, `recharts`
 - **Tablas**: `@tanstack/react-table`
-- **Charts**: `recharts`
-- **Iconos extra**: `@phosphor-icons/react`
 - **Forms**: `react-hook-form`, `@hookform/resolvers`, `zod`
+- **Dates**: `@mantine/dates`, `dayjs`
 - **Router**: `react-router` o `@tanstack/react-router`
 - **State**: `zustand` (client state), `@tanstack/react-query` (server state)
 - **Wails**: los hooks de Wails ya estan en `@fn_library` (useWailsQuery, useWailsMutation, useWailsStream, useWailsEvent, WailsProvider)
@@ -122,11 +133,10 @@ Agregar dependencias extras segun necesidad:
 ```ts
 import { defineConfig } from 'vite'
 import react from '@vitejs/plugin-react'
-import tailwindcss from '@tailwindcss/vite'
 import { resolve } from 'path'
 
 export default defineConfig({
-  plugins: [react(), tailwindcss()],
+  plugins: [react()],
   resolve: {
     alias: {
       '@': resolve(__dirname, './src'),
@@ -134,6 +144,9 @@ export default defineConfig({
     },
     dedupe: ['react', 'react-dom'],
   },
+  css: {
+    postcss: resolve(__dirname, './postcss.config.cjs'),
+  },
   build: {
     target: 'es2022',
     rollupOptions: {
@@ -147,108 +160,32 @@ export default defineConfig({
 })
 ```
 
+### postcss.config.cjs base
+
+```js
+module.exports = {
+  plugins: {
+    'postcss-preset-mantine': {},
+    'postcss-simple-vars': {
+      variables: {
+        'mantine-breakpoint-xs': '36em',
+        'mantine-breakpoint-sm': '48em',
+        'mantine-breakpoint-md': '62em',
+        'mantine-breakpoint-lg': '75em',
+        'mantine-breakpoint-xl': '88em',
+      },
+    },
+  },
+};
+```
+
 ### app.css base
 
 ```css
-@import "tailwindcss";
-
-@theme inline {
-  --font-sans: 'Geist Variable', ui-sans-serif, system-ui, sans-serif;
-  --color-background: var(--background);
-  --color-foreground: var(--foreground);
-  --color-card: var(--card);
-  --color-card-foreground: var(--card-foreground);
-  --color-popover: var(--popover);
-  --color-popover-foreground: var(--popover-foreground);
-  --color-primary: var(--primary);
-  --color-primary-foreground: var(--primary-foreground);
-  --color-secondary: var(--secondary);
-  --color-secondary-foreground: var(--secondary-foreground);
-  --color-muted: var(--muted);
-  --color-muted-foreground: var(--muted-foreground);
-  --color-accent: var(--accent);
-  --color-accent-foreground: var(--accent-foreground);
-  --color-destructive: var(--destructive);
-  --color-border: var(--border);
-  --color-input: var(--input);
-  --color-ring: var(--ring);
-  --color-chart-1: var(--chart-1);
-  --color-chart-2: var(--chart-2);
-  --color-chart-3: var(--chart-3);
-  --color-chart-4: var(--chart-4);
-  --color-chart-5: var(--chart-5);
-  --radius-sm: calc(var(--radius) * 0.6);
-  --radius-md: calc(var(--radius) * 0.8);
-  --radius-lg: var(--radius);
-  --radius-xl: calc(var(--radius) * 1.4);
-}
-
-/* Dark theme (default) */
-:root,
-[data-theme="dark"] {
-  --background: oklch(8% 0.015 260);
-  --foreground: oklch(95% 0.01 260);
-  --muted: oklch(18% 0.02 260);
-  --muted-foreground: oklch(60% 0.02 260);
-  --border: oklch(15% 0.01 260);
-  --primary: oklch(65% 0.22 260);
-  --primary-foreground: oklch(98% 0.01 260);
-  --secondary: oklch(20% 0.02 260);
-  --secondary-foreground: oklch(95% 0.01 260);
-  --accent: oklch(18% 0.03 260);
-  --accent-foreground: oklch(95% 0.01 260);
-  --destructive: oklch(55% 0.22 25);
-  --destructive-foreground: oklch(98% 0.01 260);
-  --card: oklch(11% 0.015 260);
-  --card-foreground: oklch(95% 0.01 260);
-  --popover: oklch(12% 0.015 260);
-  --popover-foreground: oklch(95% 0.01 260);
-  --ring: oklch(65% 0.22 260);
-  --input: oklch(22% 0.02 260);
-  --radius: 0.5rem;
-  --chart-1: oklch(62% 0.19 260);
-  --chart-2: oklch(65% 0.2 155);
-  --chart-3: oklch(75% 0.18 85);
-  --chart-4: oklch(60% 0.22 25);
-  --chart-5: oklch(60% 0.2 300);
-}
-
-/* Light theme */
-[data-theme="light"] {
-  --background: oklch(99% 0.005 260);
-  --foreground: oklch(15% 0.01 260);
-  --muted: oklch(95% 0.01 260);
-  --muted-foreground: oklch(45% 0.02 260);
-  --border: oklch(90% 0.01 260);
-  --primary: oklch(50% 0.22 260);
-  --primary-foreground: oklch(98% 0.01 260);
-  --secondary: oklch(95% 0.01 260);
-  --secondary-foreground: oklch(20% 0.01 260);
-  --accent: oklch(95% 0.02 260);
-  --accent-foreground: oklch(20% 0.01 260);
-  --destructive: oklch(55% 0.22 25);
-  --destructive-foreground: oklch(98% 0.01 260);
-  --card: oklch(100% 0 0);
-  --card-foreground: oklch(15% 0.01 260);
-  --popover: oklch(100% 0 0);
-  --popover-foreground: oklch(15% 0.01 260);
-  --ring: oklch(50% 0.22 260);
-  --input: oklch(90% 0.01 260);
-  --radius: 0.5rem;
-  --chart-1: oklch(55% 0.22 260);
-  --chart-2: oklch(55% 0.2 155);
-  --chart-3: oklch(65% 0.18 85);
-  --chart-4: oklch(55% 0.22 25);
-  --chart-5: oklch(55% 0.2 300);
-}
-
-@layer base {
-  * {
-    @apply border-border outline-ring/50;
-  }
-  body {
-    @apply bg-background text-foreground;
-  }
+/* Minimal — Mantine handles all theming via MantineProvider */
+html {
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
 }
 
 @media (prefers-reduced-motion: reduce) {
@@ -259,18 +196,33 @@ export default defineConfig({
 }
 ```
 
-### App.tsx base
+### main.tsx base
 
 ```tsx
-import { ThemeProvider } from '@fn_library'
+import '@mantine/core/styles.css'
+import '@mantine/notifications/styles.css'
+import './app.css'
 
-export default function App() {
-  return (
-    <ThemeProvider defaultTheme="dark">
-      {/* Router y contenido aqui */}
-    </ThemeProvider>
-  )
-}
+import React from 'react'
+import ReactDOM from 'react-dom/client'
+import { MantineProvider, createTheme } from '@mantine/core'
+import { Notifications } from '@mantine/notifications'
+import App from './App'
+
+const theme = createTheme({
+  primaryColor: 'blue',
+  defaultRadius: 'md',
+  // Customize colors, fonts, etc. here
+})
+
+ReactDOM.createRoot(document.getElementById('root')!).render(
+  <React.StrictMode>
+    <MantineProvider theme={theme} defaultColorScheme="dark">
+      <Notifications />
+      <App />
+    </MantineProvider>
+  </React.StrictMode>,
+)
 ```
 
 ### Despues del scaffold
@@ -287,17 +239,16 @@ Para componentes nuevos que van al registry en `frontend/functions/`.
 
 ### Reglas de implementacion
 
-1. **Headless first**: usar `@base-ui/react` como primitivo si el componente es interactivo (dialog, select, tooltip, etc.)
-2. **CVA para variantes**: SIEMPRE usar `class-variance-authority` para definir variantes
-3. **cn() para clases**: SIEMPRE usar `cn()` de `frontend/functions/core/cn.ts` para componer classNames
-4. **CSS variables**: NUNCA hex/rgb/oklch inline en el componente — solo clases Tailwind que mapean a CSS variables (`bg-primary`, `text-muted-foreground`, `border-border`)
-5. **Props tipadas**: usar `React.ComponentPropsWithoutRef<"element">` para HTML props spreading
+1. **Mantine first**: wrappear componentes de Mantine. Solo crear desde cero si Mantine no tiene equivalente.
+2. **Styling via props**: usar props de Mantine (`size`, `color`, `variant`, `p`, `m`, `fw`, `gap`, etc.) y el style system. NUNCA clases CSS manuales ni Tailwind.
+3. **CSS variables de Mantine**: si necesitas styles inline, usar `var(--mantine-color-*)`, `var(--mantine-spacing-*)`, etc.
+4. **Iconos**: usar `@phosphor-icons/react`, no lucide-react ni @tabler/icons-react.
+5. **Props tipadas**: usar `React.ComponentPropsWithoutRef<"element">` para HTML props spreading.
 6. **Accesibilidad**:
-   - Elementos semanticos: `<button>` para acciones, `<a>` para navegacion, `<dialog>` para modales
+   - Elementos semanticos: `<button>` para acciones, `<a>` para navegacion
    - NUNCA `<div onClick>` para elementos interactivos
-   - `aria-label` o `aria-labelledby` en todo componente interactivo
+   - `aria-label` en botones de solo icono
    - `aria-invalid` + `aria-describedby` en inputs con error
-   - `role="status"` para loading states
    - Focus management en modales/popovers
 7. **Discriminated unions** cuando las props cambian segun variante:
 
@@ -311,54 +262,19 @@ type Props = { size?: 'sm' | 'md' | 'lg'; children: React.ReactNode } & (
 ### Patron de archivo .tsx
 
 ```tsx
-import * as React from 'react'
-import { cva, type VariantProps } from 'class-variance-authority'
-import { cn } from '../core/cn'
+import { Select, type SelectProps } from '@mantine/core'
 
-const componentVariants = cva(
-  'base-classes-here', // clases base
-  {
-    variants: {
-      variant: {
-        default: 'classes...',
-        secondary: 'classes...',
-      },
-      size: {
-        sm: 'classes...',
-        md: 'classes...',
-        lg: 'classes...',
-      },
-    },
-    defaultVariants: {
-      variant: 'default',
-      size: 'md',
-    },
-  }
-)
-
-interface ComponentProps
-  extends React.ComponentPropsWithoutRef<'div'>,
-    VariantProps<typeof componentVariants> {
-  // props adicionales con JSDoc
-  /** Descripcion de la prop */
+// Re-export con defaults o logica adicional si necesario
+interface MySelectProps extends Omit<SelectProps, 'xxx'> {
   customProp?: string
 }
 
-const Component = React.forwardRef<HTMLDivElement, ComponentProps>(
-  ({ className, variant, size, customProp, ...props }, ref) => {
-    return (
-      <div
-        ref={ref}
-        className={cn(componentVariants({ variant, size }), className)}
-        {...props}
-      />
-    )
-  }
-)
-Component.displayName = 'Component'
+function MySelect({ customProp, ...props }: MySelectProps) {
+  return <Select {...props} />
+}
 
-export { Component, componentVariants }
-export type { ComponentProps }
+export { MySelect }
+export type { MySelectProps }
 ```
 
 ### Patron de archivo .md
@@ -376,12 +292,12 @@ purity: impure
 signature: "ComponentName(props: ComponentProps): JSX.Element"
 description: "Descripcion concisa de que hace el componente"
 tags: [component, ui, ...]
-uses_functions: [cn_ts_core]
+uses_functions: []
 uses_types: []
 returns: []
 returns_optional: false
 error_type: ""
-imports: ["@base-ui/react", "class-variance-authority"]
+imports: ["@mantine/core"]
 tested: false
 tests: []
 test_file_path: ""
@@ -391,14 +307,10 @@ props:
     type: "'default' | 'secondary'"
     required: false
     description: "Estilo visual"
-  - name: className
-    type: "string"
-    required: false
-    description: "Clases CSS adicionales"
 emits: []
 has_state: false
 framework: react
-variant: [default, secondary]
+variant: [default]
 ---
 
 ## Ejemplo
@@ -493,7 +405,7 @@ function useFeatureData() {
 
 ```tsx
 import { lazy, Suspense } from 'react'
-import { Skeleton } from '@fn_library'
+import { Skeleton } from '@mantine/core'
 
 const FeaturePage = lazy(() => import('./features/feature/components/FeaturePage'))
 
@@ -501,7 +413,7 @@ function AppRoutes() {
   return (
     <Routes>
       <Route path="/feature" element={
-        <Suspense fallback={<Skeleton className="h-screen w-full" />}>
+        <Suspense fallback={<Skeleton height="100vh" />}>
           <FeaturePage />
         </Suspense>
       } />
@@ -517,14 +429,19 @@ function AppRoutes() {
 Antes de dar por terminado cualquier trabajo frontend, verificar:
 
 ### Colores y estilos
-- [ ] CERO colores hardcodeados (no hex, no rgb, no oklch inline en componentes)
-- [ ] Solo clases Tailwind mapeadas a CSS variables: `bg-primary`, `text-foreground`, `border-border`, etc.
-- [ ] `cn()` usado para merge de clases en todo componente
-- [ ] CVA usado para variantes (no condicionales manuales con ternarios)
+- [ ] CERO colores hardcodeados en componentes (no hex, no rgb inline)
+- [ ] Styling via props de Mantine (`size`, `color`, `variant`, `p`, `m`, `fw`, `gap`, etc.)
+- [ ] Si se necesitan styles inline, usar CSS variables de Mantine (`var(--mantine-color-*)`)
+- [ ] NO clases CSS manuales, NO Tailwind, NO cn(), NO CVA
 
 ### Componentes del registry
 - [ ] Verificado que no se esta recreando algo que ya existe en `@fn_library` (`frontend/functions/ui/`)
-- [ ] Componentes de `@fn_library` usados donde aplica: Alert, Badge, Button, Card, Dialog, Input, Label, Select, SimpleSelect, Skeleton, Sparkline, Tabs, Tooltip, FormField, PageHeader, ProgressBar, KPICard, ThemeProvider, DashboardLayout, DataTable, charts (AreaChart, BarChart, LineChart, PieChart, ChartContainer), hooks Wails (useWailsQuery, useWailsMutation, useWailsStream, useWailsEvent)
+- [ ] Componentes de `@fn_library` usados donde aplica: Card, Select, SimpleSelect, KPICard, Sparkline, DashboardLayout, DataTable, charts, hooks Wails
+- [ ] Componentes de Mantine usados directamente donde `@fn_library` no tiene wrapper: Button, TextInput, Table, Alert, Badge, Skeleton, Tabs, Tooltip, Group, Stack, Grid, Box, Paper, AppShell, Container
+
+### Iconos
+- [ ] Usando `@phosphor-icons/react` para iconos
+- [ ] NO lucide-react, NO @tabler/icons-react
 
 ### TypeScript
 - [ ] Props interfaces con `React.ComponentPropsWithoutRef` para HTML spreading
@@ -533,7 +450,7 @@ Antes de dar por terminado cualquier trabajo frontend, verificar:
 - [ ] No `any` — usar `unknown` + type guards si es necesario
 
 ### Accesibilidad
-- [ ] Elementos semanticos (button, a, dialog — no div onClick)
+- [ ] Elementos semanticos (button, a — no div onClick)
 - [ ] `aria-label` en botones de solo icono
 - [ ] `aria-invalid` + `aria-describedby` en inputs con validacion
 - [ ] Focus trap en modales y popovers
@@ -555,15 +472,15 @@ Antes de dar por terminado cualquier trabajo frontend, verificar:
 
 ## ANTI-PATRONES (nunca hacer)
 
-1. **`<div onClick={...}>`** → usar `<button>` o Base-UI primitivo
-2. **`style={{ color: '#3b82f6' }}`** → usar `className="text-primary"`
-3. **`import Button from './MyButton'`** cuando existe en la lib → usar `import { Button } from '@fn_library'`
+1. **`<div onClick={...}>`** → usar `<button>` o componente Mantine
+2. **`style={{ color: '#3b82f6' }}`** → usar prop `c="blue"` o `var(--mantine-color-blue-6)`
+3. **`import Button from './MyButton'`** cuando existe en Mantine → usar `import { Button } from '@mantine/core'`
 4. **Estado global para todo** → segmentar: server state (React Query), client state (Zustand), form state (React Hook Form), URL state (search params)
 5. **`index.ts` en la raiz de `src/`** que re-exporta todo → mata tree-shaking
 6. **`// @ts-ignore`** → arreglar el tipo
-7. **CSS-in-JS runtime** (styled-components, emotion) → usar Tailwind
-8. **Instalar shadcn/ui como dependencia** → los componentes ya estan en el registry, usar `@fn_library`
-9. **Crear utilidades que ya existen**: `cn()`, `getSeriesColor()`, `ChartContainer`, `ThemeProvider` ya estan en `@fn_library`
-10. **Colores de chart hardcodeados** → usar `--chart-1` a `--chart-5` o `getSeriesColor()`
+7. **CSS-in-JS runtime** (styled-components, emotion) → usar props de Mantine
+8. **Tailwind, CVA, cn(), clsx** → usar props de Mantine y su style system
+9. **Crear utilidades que ya existen**: `getSeriesColor()`, `ChartContainer`, `DashboardLayout`, `DataTable` ya estan en `@fn_library`
+10. **Colores de chart hardcodeados** → usar `@mantine/charts` color system o `getSeriesColor()`
 
 $ARGUMENTS

.claude/rules/frontend_theming.md

@@ -1,3 +1,11 @@
 En todos los frontends se usan los componentes de `@fn_library` (alias a `frontend/functions/ui/`) antes que elementos HTML nativos o librerias externas.
 
-En todos los frontends se usa el sistema de temas basado en CSS variables (`--background`, `--foreground`, `--input`, `--border`, `--popover`, etc.) definidas en `app.css`. Los componentes deben leer estas variables para adaptarse al tema activo. Nunca hardcodear colores.
+El sistema de UI es Mantine v9. Todos los componentes de @fn_library wrappean componentes de Mantine.
+
+**Theming:** Cada app define su tema con `createTheme()` de `@mantine/core` y lo pasa a `MantineProvider` (o `FnMantineProvider` de @fn_library). No se usan CSS variables custom — Mantine genera las suyas automaticamente (`--mantine-color-*`).
+
+**Styling:** No se usa Tailwind, CVA, cn(), ni clases CSS manuales. Los componentes se estilizan con props de Mantine (`size`, `color`, `variant`, `p`, `m`, `fw`, etc.) y el style system de Mantine.
+
+**Iconos:** Se usa `@tabler/icons-react` (el set nativo de Mantine), no lucide-react.
+
+**Layout:** Se usan los componentes de layout de Mantine: `Group`, `Stack`, `Grid`, `Flex`, `SimpleGrid`, `AppShell`, `Container`, `Box`, `Paper`.

frontend/components.json

@@ -1,25 +0,0 @@
-{
-  "$schema": "https://ui.shadcn.com/schema.json",
-  "style": "base-nova",
-  "rsc": false,
-  "tsx": true,
-  "tailwind": {
-    "config": "",
-    "css": "src/globals.css",
-    "baseColor": "neutral",
-    "cssVariables": true,
-    "prefix": ""
-  },
-  "iconLibrary": "lucide",
-  "rtl": false,
-  "aliases": {
-    "components": "@/components",
-    "utils": "@/lib/utils",
-    "ui": "@/components/ui",
-    "lib": "@/lib",
-    "hooks": "@/hooks"
-  },
-  "menuColor": "default",
-  "menuAccent": "subtle",
-  "registries": {}
-}

frontend/functions/core/chart_colors.ts

@@ -1,11 +1,11 @@
 export const chartColors = [
-  'hsl(var(--chart-1, 220 70% 50%))',
-  'hsl(var(--chart-2, 160 60% 45%))',
-  'hsl(var(--chart-3, 30 80% 55%))',
-  'hsl(var(--chart-4, 280 65% 60%))',
-  'hsl(var(--chart-5, 340 75% 55%))',
+  '#3b82f6',
+  '#10b981',
+  '#f59e0b',
+  '#8b5cf6',
+  '#ef4444',
 ]
 
 export function getChartColor(index: number): string {
-  return chartColors[index % chartColors.length]
+  return chartColors[index % chartColors.length]!
 }

frontend/functions/core/cn.md

@@ -1,40 +0,0 @@
----
-name: cn
-kind: function
-lang: ts
-domain: core
-version: "1.0.0"
-purity: pure
-signature: "cn(...inputs: ClassValue[]): string"
-description: "Combina clases CSS con clsx y resuelve conflictos Tailwind con tailwind-merge. Utilidad fundamental para composición de estilos."
-tags: [css, tailwind, classname, merge, utility]
-uses_functions: []
-uses_types: []
-returns: []
-returns_optional: false
-error_type: ""
-imports: [clsx, tailwind-merge]
-params:
-  - name: inputs
-    desc: "Clases CSS en cualquier formato: strings, arrays, objetos con condiciones booleanas"
-output: "String con clases CSS combinadas y mergeadas, sin duplicados y conflictos Tailwind resueltos"
-tested: false
-tests: []
-test_file_path: ""
-file_path: "frontend/functions/core/cn.ts"
-source_repo: "https://gitea-dgg044oo04woo4ggcsws4gk0.organic-machine.com/Bl4cksmith/Frontend_Library"
-source_license: "MIT"
-source_file: "frontend/src/lib/utils.ts"
----
-
-## Ejemplo
-
-```typescript
-cn("px-4 py-2", "px-6")              // "px-6 py-2" (tailwind-merge resuelve conflicto)
-cn("text-red-500", false && "hidden") // "text-red-500" (clsx filtra falsy)
-cn("rounded-lg", className)           // composición con className externo
-```
-
-## Notas
-
-Base de todo el sistema de estilos. Todos los componentes la usan para componer className.

frontend/functions/core/cn.ts

@@ -1,6 +0,0 @@
-import { clsx, type ClassValue } from "clsx"
-import { twMerge } from "tailwind-merge"
-
-export function cn(...inputs: ClassValue[]): string {
-  return twMerge(clsx(inputs))
-}

frontend/functions/core/generate_theme_css.md

@@ -1,69 +0,0 @@
----
-name: generate_theme_css
-kind: function
-lang: ts
-domain: core
-version: "1.0.0"
-purity: pure
-signature: "generateThemeCss(colors: Record<string, string>, selector?: string): string"
-description: "Genera un bloque CSS con variables de tema a partir de un objeto de tokens. Convierte claves camelCase a kebab-case automaticamente. Pura — solo transforma datos, no accede al DOM."
-tags: [theme, css, generator, pure]
-uses_functions: []
-uses_types: []
-returns: []
-returns_optional: false
-error_type: ""
-imports: []
-params:
-  - name: colors
-    desc: "Objeto con pares clave-valor de nombre variable CSS a valor de color"
-  - name: selector
-    desc: "Selector CSS donde inyectar variables (':root' por defecto)"
-output: "String con bloque CSS completo conteniendo definiciones de variables de tema"
-tested: false
-tests: []
-test_file_path: ""
-file_path: "frontend/functions/core/generate_theme_css.ts"
----
-
-## Ejemplo
-
-```typescript
-import { generateThemeCss } from './generate_theme_css'
-import { themeConfigToColors } from './theme_config_to_colors'
-import { darkTheme } from '../ui/themes'
-
-// Generar CSS para inyectar en <style>
-const colors = themeConfigToColors(darkTheme)
-const css = generateThemeCss(colors)
-// Output:
-// :root {
-//   --background: oklch(8% 0.015 260);
-//   --foreground: oklch(95% 0.01 260);
-//   --card: oklch(12% 0.015 260);
-//   --card-foreground: oklch(95% 0.01 260);
-//   ...
-// }
-
-// Inyectar en el documento
-const style = document.createElement('style')
-style.textContent = css
-document.head.appendChild(style)
-
-// Generar para selector especifico (dark mode)
-const darkCss = generateThemeCss(colors, '.dark')
-// Output: .dark { --background: oklch(...); ... }
-
-// Generar para multiples selectores
-const lightCss = generateThemeCss(lightColors, ':root')
-const darkCss2 = generateThemeCss(darkColors, ':root.dark')
-const combined = [lightCss, darkCss2].join('\n\n')
-```
-
-## Notas
-
-Funcion pura — sin acceso al DOM, sin side effects. Util para SSR, generacion de archivos CSS estaticos, o pre-generar temas en build time.
-
-La conversion camelCase → kebab-case es simple (reemplaza mayusculas con `-` + minuscula). No maneja casos especiales como `backgroundColor` → `background-color`; los tokens del registry ya usan nombres semanticos directos (`background`, `cardForeground`, etc.).
-
-Compone naturalmente con `themeConfigToColors` del registry: `generateThemeCss(themeConfigToColors(config))`.

frontend/functions/core/generate_theme_css.ts

@@ -1,23 +0,0 @@
-/**
- * Genera un bloque CSS con variables de tema para inyectar como <style> o
- * escribir en un archivo .css.
- *
- * Convierte claves camelCase a kebab-case automaticamente:
- *   `cardForeground` → `--card-foreground`
- *
- * @param colors - Objeto con tokens de tema. Claves en camelCase, valores CSS.
- * @param selector - Selector CSS donde aplicar las variables. Por defecto `:root`.
- * @returns String CSS con el bloque completo.
- */
-export function generateThemeCss(
-  colors: Record<string, string>,
-  selector: string = ':root',
-): string {
-  const lines = Object.entries(colors)
-    .map(([key, value]) => {
-      const cssName = key.replace(/[A-Z]/g, (m) => `-${m.toLowerCase()}`)
-      return `  --${cssName}: ${value};`
-    })
-    .join('\n')
-  return `${selector} {\n${lines}\n}`
-}

frontend/functions/core/get_series_color.ts

@@ -1,7 +1,7 @@
 const defaultColors = ['#3b82f6', '#22c55e', '#f59e0b', '#8b5cf6', '#ec4899']
 
 export function getSeriesColor(index: number, color?: string): string {
-  return color || defaultColors[index % defaultColors.length]
+  return color ?? defaultColors[index % defaultColors.length]!
 }
 
 export { defaultColors }

frontend/functions/core/get_theme_tokens.md

@@ -1,50 +0,0 @@
----
-name: get_theme_tokens
-kind: function
-lang: ts
-domain: core
-version: "1.0.0"
-purity: impure
-signature: "getThemeTokens(): ThemeTokens"
-description: "Lee todas las CSS variables de tema del documento y devuelve un objeto tipado con los valores computados desde :root. Util para pasar colores a APIs que no entienden CSS variables (canvas, sigma.js, D3)."
-tags: [theme, css, tokens, runtime, dom]
-uses_functions: []
-uses_types: []
-returns: []
-returns_optional: false
-error_type: "error_go_core"
-imports: []
-output: "Objeto ThemeTokens con todas las variables CSS de tema resueltas (colores, tipografía, espaciado)"
-tested: false
-tests: []
-test_file_path: ""
-file_path: "frontend/functions/core/get_theme_tokens.ts"
----
-
-## Ejemplo
-
-```typescript
-import { getThemeTokens } from './get_theme_tokens'
-
-const tokens = getThemeTokens()
-
-// Pasar colores a sigma.js (que no soporta CSS variables)
-const sigmaSettings = {
-  defaultNodeColor: tokens.primary,
-  defaultEdgeColor: tokens.muted,
-  labelColor: { color: tokens.foreground },
-}
-
-// Pasar colores a un canvas 2D
-const ctx = canvas.getContext('2d')
-ctx.fillStyle = tokens.background
-ctx.strokeStyle = tokens.border
-```
-
-## Notas
-
-Impura — accede a `document.documentElement` y `getComputedStyle`. Solo disponible en browser.
-
-Los valores retornados son los valores sin procesar de las CSS variables (ej: `oklch(8% 0.015 260)`). Para obtener valores RGB computed (necesarios para algunas APIs), usar `getComputedColor`.
-
-Funciona con cualquier tema activo: el resultado cambia automaticamente cuando se cambia el tema via `applyTheme`.

frontend/functions/core/get_theme_tokens.ts

@@ -1,59 +0,0 @@
-/** Tokens de tema leidos de las CSS variables activas en :root. */
-export interface ThemeTokens {
-  background: string
-  foreground: string
-  card: string
-  cardForeground: string
-  popover: string
-  popoverForeground: string
-  primary: string
-  primaryForeground: string
-  secondary: string
-  secondaryForeground: string
-  muted: string
-  mutedForeground: string
-  accent: string
-  accentForeground: string
-  destructive: string
-  destructiveForeground: string
-  success: string
-  successForeground: string
-  border: string
-  input: string
-  ring: string
-}
-
-/**
- * Lee todas las CSS variables de tema del documento y devuelve un objeto
- * tipado con los valores computados desde :root.
- *
- * Util para pasar colores a APIs que no entienden CSS variables
- * (canvas, sigma.js, D3, etc.).
- */
-export function getThemeTokens(): ThemeTokens {
-  const style = getComputedStyle(document.documentElement)
-  const get = (name: string) => style.getPropertyValue(`--${name}`).trim()
-  return {
-    background: get('background'),
-    foreground: get('foreground'),
-    card: get('card'),
-    cardForeground: get('card-foreground'),
-    popover: get('popover'),
-    popoverForeground: get('popover-foreground'),
-    primary: get('primary'),
-    primaryForeground: get('primary-foreground'),
-    secondary: get('secondary'),
-    secondaryForeground: get('secondary-foreground'),
-    muted: get('muted'),
-    mutedForeground: get('muted-foreground'),
-    accent: get('accent'),
-    accentForeground: get('accent-foreground'),
-    destructive: get('destructive'),
-    destructiveForeground: get('destructive-foreground'),
-    success: get('success'),
-    successForeground: get('success-foreground'),
-    border: get('border'),
-    input: get('input'),
-    ring: get('ring'),
-  }
-}

frontend/functions/core/theme_config_to_colors.md

@@ -1,41 +0,0 @@
----
-name: theme_config_to_colors
-kind: function
-lang: ts
-domain: core
-version: "1.0.0"
-purity: pure
-signature: "themeConfigToColors(config: ThemeConfig): ThemeColors"
-description: "Convierte un ThemeConfig completo a ThemeColors plano para inyectar como CSS variables. Mapea tokens semánticos a variables CSS."
-tags: [theme, colors, css-variables, conversion]
-uses_functions: []
-uses_types: []
-returns: []
-returns_optional: false
-error_type: ""
-imports: []
-params:
-  - name: config
-    desc: "Configuración de tema con propiedades semánticas de color"
-output: "Objeto ThemeColors con variables CSS estandarizadas mapeadas de la config"
-tested: false
-tests: []
-test_file_path: ""
-file_path: "frontend/functions/core/theme_config_to_colors.ts"
-source_repo: "https://gitea-dgg044oo04woo4ggcsws4gk0.organic-machine.com/Bl4cksmith/Frontend_Library"
-source_license: "MIT"
-source_file: "frontend/src/themes/types.ts"
----
-
-## Ejemplo
-
-```typescript
-const colors = themeConfigToColors(darkThemeConfig)
-// { background: '...', foreground: '...', primary: '...', ... }
-```
-
-## Notas
-
-Puente entre el sistema de temas estructurado (ThemeConfig) y el sistema plano de CSS variables que consumen los componentes.
-
-Depende de los tipos ThemeConfig y ThemeColors definidos en `frontend/types/ui/theme_config.ts`. El tipo aún no está indexado en la BD (pendiente añadir theme_config.md para que fn index lo registre).

frontend/functions/core/theme_config_to_colors.ts

@@ -1,49 +0,0 @@
-import type { ThemeConfig, ThemeColors } from "../../types/ui/theme_config"
-
-export function themeConfigToColors(config: ThemeConfig): ThemeColors {
-  const { colors } = config
-
-  return {
-    background: colors.background.default,
-    foreground: colors.foreground.default,
-    card: colors.surface.raised,
-    cardForeground: colors.foreground.default,
-    popover: colors.surface.overlay,
-    popoverForeground: colors.foreground.default,
-    primary: colors.brand.primary,
-    primaryForeground: colors.brand.primaryForeground,
-    secondary: colors.brand.secondary,
-    secondaryForeground: colors.brand.secondaryForeground,
-    muted: colors.background.muted,
-    mutedForeground: colors.foreground.muted,
-    accent: colors.brand.accent,
-    accentForeground: colors.brand.accentForeground,
-    destructive: colors.status.error,
-    destructiveForeground: colors.status.errorForeground,
-    success: colors.status.success,
-    successForeground: colors.status.successForeground,
-    warning: colors.status.warning,
-    warningForeground: colors.status.warningForeground,
-    info: colors.status.info,
-    infoForeground: colors.status.infoForeground,
-    surface: colors.surface.raised,
-    surfaceHover: colors.background.subtle,
-    overlay: colors.surface.overlay,
-    border: colors.border.default,
-    input: colors.border.default,
-    ring: colors.ring,
-    chart1: colors.chart[1],
-    chart2: colors.chart[2],
-    chart3: colors.chart[3],
-    chart4: colors.chart[4],
-    chart5: colors.chart[5],
-    sidebar: colors.sidebar.background,
-    sidebarForeground: colors.sidebar.foreground,
-    sidebarPrimary: colors.brand.primary,
-    sidebarPrimaryForeground: colors.brand.primaryForeground,
-    sidebarAccent: colors.sidebar.accent,
-    sidebarAccentForeground: colors.sidebar.accentForeground,
-    sidebarBorder: colors.sidebar.border,
-    sidebarRing: colors.sidebar.ring,
-  }
-}

frontend/functions/ui/accordion.md

@@ -6,14 +6,14 @@ domain: ui
 version: "1.0.0"
 purity: impure
 signature: "Accordion(props: AccordionProps): JSX.Element"
-description: "Secciones colapsables con animaciones. Base-UI Collapsible primitive. Composable: AccordionItem + AccordionTrigger + AccordionContent."
-tags: [accordion, collapsible, component, ui, interactive, base-ui]
-uses_functions: [cn_ts_core]
+description: "Secciones colapsables con animaciones. Mantine Accordion. Composable: AccordionItem + AccordionTrigger + AccordionContent."
+tags: [accordion, collapsible, component, ui, interactive, mantine]
+uses_functions: []
 uses_types: []
 returns: []
 returns_optional: false
 error_type: ""
-imports: ["@base-ui/react/collapsible", "lucide-react"]
+imports: ["@mantine/core"]
 output: "Componente Accordion que renderiza secciones colapsables con soporte para múltiples items abiertos simultáneamente"
 tested: false
 tests: []
@@ -33,14 +33,14 @@ variant: []
 ## Ejemplo
 
 ```tsx
-<Accordion>
-  <AccordionItem defaultOpen>
+<Accordion defaultValue="section-1">
+  <AccordionItem value="section-1">
     <AccordionTrigger>Seccion 1</AccordionTrigger>
     <AccordionContent>
       Contenido de la primera seccion.
     </AccordionContent>
   </AccordionItem>
-  <AccordionItem>
+  <AccordionItem value="section-2">
     <AccordionTrigger>Seccion 2</AccordionTrigger>
     <AccordionContent>
       Contenido de la segunda seccion.
@@ -51,4 +51,4 @@ variant: []
 
 ## Notas
 
-Cada AccordionItem es un Collapsible independiente — permite multiples items abiertos simultaneamente. Para exclusividad (solo uno abierto), manejar el estado externamente. El chevron rota 180 grados con [data-open]. Exports: Accordion, AccordionItem, AccordionTrigger, AccordionContent.
+Usa Mantine Accordion nativo. Soporta type single (default) y multiple para multiples items abiertos. El chevron se maneja automaticamente por Mantine. AccordionItem requiere prop value unico. Exports: Accordion, AccordionItem, AccordionTrigger, AccordionContent.

frontend/functions/ui/accordion.tsx

@@ -1,7 +1,5 @@
 import * as React from "react"
-import { Collapsible as CollapsiblePrimitive } from "@base-ui/react/collapsible"
-import { ChevronDownIcon } from "lucide-react"
-import { cn } from "../core/cn"
+import { Accordion as MantineAccordion } from "@mantine/core"
 
 interface AccordionItem {
   value: string
@@ -19,61 +17,72 @@ interface AccordionProps {
   children?: React.ReactNode
 }
 
-function Accordion({ className, children, ...props }: React.ComponentProps<"div"> & AccordionProps) {
+function Accordion({ className, type, defaultValue, children }: AccordionProps) {
+  if (type === "multiple") {
+    return (
+      <MantineAccordion
+        multiple
+        data-slot="accordion"
+        className={className}
+        defaultValue={Array.isArray(defaultValue) ? defaultValue : undefined}
+      >
+        {children}
+      </MantineAccordion>
+    )
+  }
+
   return (
-    <div data-slot="accordion" className={cn("divide-y divide-border", className)} {...props}>
+    <MantineAccordion
+      data-slot="accordion"
+      className={className}
+      defaultValue={typeof defaultValue === "string" ? defaultValue : undefined}
+    >
       {children}
-    </div>
+    </MantineAccordion>
   )
 }
 
-interface AccordionItemProps extends CollapsiblePrimitive.Root.Props {
+interface AccordionItemProps {
+  value: string
   className?: string
+  children?: React.ReactNode
+  disabled?: boolean
 }
 
-function AccordionItem({ className, ...props }: AccordionItemProps) {
+function AccordionItem({ className, value, children, ...props }: AccordionItemProps) {
   return (
-    <CollapsiblePrimitive.Root
+    <MantineAccordion.Item
       data-slot="accordion-item"
-      className={cn("group/accordion-item", className)}
-      {...props}
-    />
-  )
-}
-
-function AccordionTrigger({ className, children, ...props }: CollapsiblePrimitive.Trigger.Props) {
-  return (
-    <CollapsiblePrimitive.Trigger
-      data-slot="accordion-trigger"
-      className={cn(
-        "flex w-full items-center justify-between py-4 text-sm font-medium transition-all outline-none",
-        "hover:underline focus-visible:ring-3 focus-visible:ring-ring/50 focus-visible:underline",
-        "disabled:pointer-events-none disabled:opacity-50",
-        "[&[data-open]>svg]:rotate-180",
-        className
-      )}
+      value={value}
+      className={className}
       {...props}
     >
       {children}
-      <ChevronDownIcon className="size-4 shrink-0 text-muted-foreground transition-transform duration-200" />
-    </CollapsiblePrimitive.Trigger>
+    </MantineAccordion.Item>
   )
 }
 
-function AccordionContent({ className, children, ...props }: CollapsiblePrimitive.Panel.Props) {
+function AccordionTrigger({ className, children, ...props }: { className?: string; children?: React.ReactNode }) {
   return (
-    <CollapsiblePrimitive.Panel
-      data-slot="accordion-content"
-      className={cn(
-        "overflow-hidden text-sm",
-        "data-open:animate-in data-open:fade-in-0",
-        "data-closed:animate-out data-closed:fade-out-0",
-        className
-      )}
+    <MantineAccordion.Control
+      data-slot="accordion-trigger"
+      className={className}
       {...props}
     >
-      <div className="pb-4">{children}</div>
-    </CollapsiblePrimitive.Panel>
+      {children}
+    </MantineAccordion.Control>
+  )
+}
+
+function AccordionContent({ className, children, ...props }: { className?: string; children?: React.ReactNode }) {
+  return (
+    <MantineAccordion.Panel
+      data-slot="accordion-content"
+      className={className}
+      {...props}
+    >
+      {children}
+    </MantineAccordion.Panel>
   )
 }
 

frontend/functions/ui/action_icon.md

@@ -0,0 +1,77 @@
+---
+name: action_icon
+kind: component
+lang: ts
+domain: ui
+version: "1.0.0"
+purity: impure
+signature: "FnActionIcon(props: FnActionIconProps): JSX.Element"
+description: "Boton de icono con variantes, loading y tooltip opcional. Wrapper sobre Mantine ActionIcon."
+tags: [mantine, button, icon, action, tooltip, component, ui]
+uses_functions: []
+uses_types: []
+returns: []
+returns_optional: false
+error_type: ""
+imports: ["@mantine/core"]
+framework: react
+props:
+  - name: icon
+    type: "ReactNode"
+    required: true
+    description: "Icono a renderizar dentro del boton"
+  - name: variant
+    type: "'filled' | 'light' | 'outline' | 'transparent' | 'default' | 'subtle'"
+    required: false
+    description: "Variante visual del boton, default 'default'"
+  - name: size
+    type: "MantineSize | number"
+    required: false
+    description: "Tamano del boton"
+  - name: color
+    type: "MantineColor"
+    required: false
+    description: "Color del boton"
+  - name: onClick
+    type: "MouseEventHandler"
+    required: false
+    description: "Callback al hacer click"
+  - name: loading
+    type: "boolean"
+    required: false
+    description: "Muestra spinner de carga"
+  - name: disabled
+    type: "boolean"
+    required: false
+    description: "Deshabilita el boton"
+  - name: tooltip
+    type: "string"
+    required: false
+    description: "Si se provee, envuelve el boton en un Tooltip"
+output: "Boton de icono con tooltip opcional, estados loading/disabled y multiples variantes"
+tested: false
+tests: []
+test_file_path: ""
+file_path: "frontend/functions/ui/action_icon.tsx"
+emits: []
+has_state: false
+variant: [filled, light, outline, transparent, default, subtle]
+---
+
+## Ejemplo
+
+```tsx
+import { FnActionIcon } from '@fn_library'
+import { IconSettings } from '@tabler/icons-react'
+
+<FnActionIcon
+  icon={<IconSettings size={18} />}
+  tooltip="Configuracion"
+  variant="light"
+  onClick={() => openSettings()}
+/>
+```
+
+## Notas
+
+Wrapper sobre Mantine `ActionIcon`. Si se provee `tooltip`, envuelve automaticamente en Mantine `Tooltip`. Compatible con iconos de `@tabler/icons-react`.

frontend/functions/ui/action_icon.tsx

@@ -0,0 +1,47 @@
+import * as React from 'react'
+import { ActionIcon, Tooltip } from '@mantine/core'
+import type { MantineSize, MantineColor } from '@mantine/core'
+
+interface FnActionIconProps {
+  icon: React.ReactNode
+  variant?: 'filled' | 'light' | 'outline' | 'transparent' | 'default' | 'subtle'
+  size?: MantineSize | number
+  color?: MantineColor
+  onClick?: React.MouseEventHandler<HTMLButtonElement>
+  loading?: boolean
+  disabled?: boolean
+  tooltip?: string
+}
+
+function FnActionIcon({
+  icon,
+  variant = 'default',
+  size = 'md',
+  color,
+  onClick,
+  loading,
+  disabled,
+  tooltip,
+}: FnActionIconProps) {
+  const button = (
+    <ActionIcon
+      variant={variant}
+      size={size}
+      color={color}
+      onClick={onClick}
+      loading={loading}
+      disabled={disabled}
+    >
+      {icon}
+    </ActionIcon>
+  )
+
+  if (tooltip) {
+    return <Tooltip label={tooltip}>{button}</Tooltip>
+  }
+
+  return button
+}
+
+export { FnActionIcon }
+export type { FnActionIconProps }

frontend/functions/ui/alert.md

@@ -6,15 +6,15 @@ domain: ui
 version: "1.0.0"
 purity: impure
 signature: "Alert(props: { variant?: 'default' | 'destructive' }): JSX.Element"
-description: "Alerta accesible con variantes default y destructive. Sistema de slots para título, descripción, icono y acción."
-tags: [alert, feedback, component, ui, notification]
-uses_functions: [cn_ts_core]
+description: "Alerta accesible con variantes default y destructive. Mantine Alert con slots para título, descripción y acción."
+tags: [alert, feedback, component, ui, notification, mantine]
+uses_functions: []
 uses_types: []
 returns: []
 returns_optional: false
 error_type: ""
-imports: [react, class-variance-authority]
-output: "Componente Alert que renderiza una alerta accesible con slots para título, descripción, icono y acción"
+imports: ["@mantine/core", react]
+output: "Componente Alert que renderiza una alerta accesible via Mantine Alert con slots para título, descripción y acción"
 tested: false
 tests: []
 test_file_path: ""
@@ -46,5 +46,5 @@ source_file: "frontend/src/components/ui/alert.tsx"
 ## Notas
 
 Exporta 4 subcomponentes composables via data-slot: Alert, AlertTitle, AlertDescription, AlertAction.
-El icono SVG se posiciona automáticamente en grid cuando es hijo directo de Alert.
-AlertAction se posiciona absolute top-right para acciones secundarias (ej: botón cerrar).
+AlertAction se posiciona absolute top-right para acciones secundarias (ej: boton cerrar).
+alertVariants se exporta como objeto vacio por compatibilidad (Mantine gestiona variantes via color prop).

frontend/functions/ui/alert.tsx

@@ -1,34 +1,70 @@
-import * as React from "react"
-import { cva, type VariantProps } from "class-variance-authority"
-import { cn } from "../core/cn"
+import * as React from 'react'
+import { Alert as MantineAlert, Box, Text } from '@mantine/core'
 
-const alertVariants = cva(
-  "group/alert relative grid w-full gap-0.5 rounded-lg border px-2.5 py-2 text-left text-sm has-data-[slot=alert-action]:relative has-data-[slot=alert-action]:pr-18 has-[>svg]:grid-cols-[auto_1fr] has-[>svg]:gap-x-2 *:[svg]:row-span-2 *:[svg]:translate-y-0.5 *:[svg]:text-current *:[svg:not([class*='size-'])]:size-4",
-  {
-    variants: {
-      variant: {
-        default: "bg-card text-card-foreground",
-        destructive: "bg-card text-destructive *:data-[slot=alert-description]:text-destructive/90 *:[svg]:text-current",
-      },
-    },
-    defaultVariants: { variant: "default" },
-  }
-)
+type AlertVariant = 'default' | 'destructive'
 
-function Alert({ className, variant, ...props }: React.ComponentProps<"div"> & VariantProps<typeof alertVariants>) {
-  return <div data-slot="alert" role="alert" className={cn(alertVariants({ variant }), className)} {...props} />
+const variantColorMap: Record<AlertVariant, string | undefined> = {
+  default: undefined,
+  destructive: 'red',
 }
 
-function AlertTitle({ className, ...props }: React.ComponentProps<"div">) {
-  return <div data-slot="alert-title" className={cn("font-medium group-has-[>svg]/alert:col-start-2 [&_a]:underline [&_a]:underline-offset-3 [&_a]:hover:text-foreground", className)} {...props} />
+function Alert({
+  className,
+  variant = 'default',
+  children,
+  ...props
+}: React.ComponentProps<'div'> & { variant?: AlertVariant }) {
+  return (
+    <MantineAlert
+      data-slot="alert"
+      color={variantColorMap[variant]}
+      radius="md"
+      variant="light"
+      className={className}
+      {...props}
+    >
+      {children}
+    </MantineAlert>
+  )
 }
 
-function AlertDescription({ className, ...props }: React.ComponentProps<"div">) {
-  return <div data-slot="alert-description" className={cn("text-sm text-balance text-muted-foreground md:text-pretty [&_a]:underline [&_a]:underline-offset-3 [&_a]:hover:text-foreground [&_p:not(:last-child)]:mb-4", className)} {...props} />
+function AlertTitle({ className, ...props }: React.ComponentProps<'div'>) {
+  return (
+    <Text
+      component="div"
+      data-slot="alert-title"
+      fw={500}
+      size="sm"
+      className={className}
+      {...props}
+    />
+  )
 }
 
-function AlertAction({ className, ...props }: React.ComponentProps<"div">) {
-  return <div data-slot="alert-action" className={cn("absolute top-2 right-2", className)} {...props} />
+function AlertDescription({ className, ...props }: React.ComponentProps<'div'>) {
+  return (
+    <Text
+      component="div"
+      data-slot="alert-description"
+      size="sm"
+      c="dimmed"
+      className={className}
+      {...props}
+    />
+  )
 }
 
+function AlertAction({ className, style, ...props }: React.ComponentProps<'div'>) {
+  return (
+    <Box
+      data-slot="alert-action"
+      style={{ position: 'absolute', top: 'var(--mantine-spacing-xs)', right: 'var(--mantine-spacing-xs)', ...style }}
+      className={className}
+      {...props}
+    />
+  )
+}
+
+const alertVariants = {} as const
+
 export { Alert, AlertTitle, AlertDescription, AlertAction, alertVariants }

frontend/functions/ui/analytics_page.md

@@ -8,12 +8,12 @@ purity: pure
 signature: "analyticsPage(props: AnalyticsPageProps): ReactElement"
 description: "Genera un dashboard de analytics completo con header, fila de KPIs con deltas y grid de charts configurables."
 tags: [analytics, dashboard, kpi, charts, factory, composition, ui]
-uses_functions: [cn_ts_core]
+uses_functions: []
 uses_types: []
 returns: []
 returns_optional: false
 error_type: ""
-imports: [react]
+imports: [react, "@mantine/core"]
 params:
   - name: props
     desc: "Configuración del dashboard: título, métricas con deltas, y lista de charts con span"

frontend/functions/ui/analytics_page.tsx

@@ -1,5 +1,5 @@
 import * as React from 'react'
-import { cn } from '../core/cn'
+import { Stack, Group, Title, Text, Paper, SimpleGrid } from '@mantine/core'
 
 interface MetricConfig {
   label: string
@@ -34,67 +34,63 @@ export function analyticsPage({
   metrics,
   charts,
   actions,
-  className,
 }: AnalyticsPageProps): React.ReactElement {
+  const metricCols = metrics.length <= 2 ? { base: 1, md: 2 } : metrics.length <= 3 ? { base: 1, md: 3 } : { base: 1, md: 2, lg: 4 }
+
   return (
-    <div className={cn('space-y-6', className)}>
+    <Stack gap="lg">
       {/* Header */}
-      <div className="flex items-center justify-between border-b pb-4">
-        <div className="space-y-1">
-          <h1 className="text-2xl font-semibold tracking-tight">{title}</h1>
-          {subtitle && <p className="text-sm text-muted-foreground">{subtitle}</p>}
-        </div>
-        <div className="flex items-center gap-2">
+      <Group justify="space-between" pb="md" style={{ borderBottom: '1px solid var(--mantine-color-default-border)' }}>
+        <Stack gap={4}>
+          <Title order={2}>{title}</Title>
+          {subtitle && <Text size="sm" c="dimmed">{subtitle}</Text>}
+        </Stack>
+        <Group gap="xs">
           {dateRange}
           {actions}
-        </div>
-      </div>
+        </Group>
+      </Group>
 
       {/* KPI Row */}
-      <div className={cn(
-        'grid gap-4',
-        metrics.length <= 2 ? 'grid-cols-1 md:grid-cols-2' :
-        metrics.length <= 3 ? 'grid-cols-1 md:grid-cols-3' :
-        'grid-cols-1 md:grid-cols-2 lg:grid-cols-4'
-      )}>
+      <SimpleGrid cols={metricCols} spacing="md">
         {metrics.map((metric, i) => (
-          <div key={i} className="rounded-lg border bg-card p-4 text-card-foreground shadow-sm">
-            <p className="text-sm text-muted-foreground">{metric.label}</p>
-            <div className="mt-2 flex items-end justify-between gap-4">
-              <div className="space-y-1">
-                <p className="text-3xl font-bold tracking-tight">{metric.value}</p>
+          <Paper key={i} p="md" withBorder shadow="xs">
+            <Text size="sm" c="dimmed">{metric.label}</Text>
+            <Group mt="xs" justify="space-between" align="flex-end" gap="md">
+              <Stack gap={4}>
+                <Text fz={30} fw={700} lh={1}>{metric.value}</Text>
                 {metric.delta && (
-                  <div className={cn(
-                    'flex items-center gap-1 text-sm font-medium',
-                    metric.delta.value === 0 ? 'text-muted-foreground' :
-                    metric.delta.isPositive ? 'text-green-600 dark:text-green-500' :
-                    'text-red-600 dark:text-red-500'
-                  )}>
-                    <span>{metric.delta.value > 0 ? '+' : ''}{metric.delta.value}%</span>
-                  </div>
+                  <Text
+                    size="sm"
+                    fw={500}
+                    c={metric.delta.value === 0 ? 'dimmed' : metric.delta.isPositive ? 'green' : 'red'}
+                  >
+                    {metric.delta.value > 0 ? '+' : ''}{metric.delta.value}%
+                  </Text>
                 )}
-              </div>
-            </div>
-          </div>
+              </Stack>
+            </Group>
+          </Paper>
         ))}
-      </div>
+      </SimpleGrid>
 
       {/* Charts Grid */}
-      <div className="grid grid-cols-1 gap-4 lg:grid-cols-2">
+      <SimpleGrid cols={{ base: 1, lg: 2 }} spacing="md">
         {charts.map((chart) => (
-          <div
+          <Paper
             key={chart.id}
-            className={cn(
-              'rounded-xl border bg-card p-4 text-card-foreground shadow-sm',
-              chart.span === 2 && 'lg:col-span-2'
-            )}
+            p="md"
+            withBorder
+            shadow="xs"
+            radius="md"
+            style={chart.span === 2 ? { gridColumn: 'span 2' } : undefined}
           >
-            <h3 className="mb-3 text-sm font-medium text-muted-foreground">{chart.title}</h3>
+            <Text size="sm" fw={500} c="dimmed" mb="sm">{chart.title}</Text>
             {chart.content}
-          </div>
+          </Paper>
         ))}
-      </div>
-    </div>
+      </SimpleGrid>
+    </Stack>
   )
 }
 

frontend/functions/ui/app_shell.md

@@ -0,0 +1,65 @@
+---
+name: app_shell
+kind: component
+lang: ts
+domain: ui
+version: "1.0.0"
+purity: impure
+signature: "FnAppShell(props: FnAppShellProps): JSX.Element"
+description: "Layout shell con header, navbar colapsable y area principal. Wrapper sobre Mantine AppShell."
+tags: [mantine, layout, shell, navigation, component, ui]
+uses_functions: []
+uses_types: []
+returns: []
+returns_optional: false
+error_type: ""
+imports: ["@mantine/core"]
+framework: react
+props:
+  - name: header
+    type: "ReactNode"
+    required: false
+    description: "Contenido del header superior"
+  - name: navbar
+    type: "ReactNode"
+    required: false
+    description: "Contenido del sidebar de navegacion"
+  - name: navbarWidth
+    type: "number"
+    required: false
+    description: "Ancho del navbar en px, default 250"
+  - name: navbarCollapsed
+    type: "boolean"
+    required: false
+    description: "Si el navbar esta colapsado"
+  - name: children
+    type: "ReactNode"
+    required: true
+    description: "Contenido principal del area main"
+output: "Layout de aplicacion con header fijo, sidebar colapsable y area de contenido principal"
+tested: false
+tests: []
+test_file_path: ""
+file_path: "frontend/functions/ui/app_shell.tsx"
+emits: []
+has_state: false
+variant: []
+---
+
+## Ejemplo
+
+```tsx
+import { FnAppShell } from '@fn_library'
+
+<FnAppShell
+  header={<Group px="md">Logo</Group>}
+  navbar={<NavLinks />}
+  navbarCollapsed={collapsed}
+>
+  <MainContent />
+</FnAppShell>
+```
+
+## Notas
+
+Wrapper sobre Mantine `AppShell`. El header tiene altura fija de 60px. El navbar colapsa tanto en mobile como en desktop cuando `navbarCollapsed` es true. El breakpoint de responsive es `sm`.

frontend/functions/ui/app_shell.tsx

@@ -0,0 +1,33 @@
+import * as React from 'react'
+import { AppShell } from '@mantine/core'
+
+interface FnAppShellProps {
+  header?: React.ReactNode
+  navbar?: React.ReactNode
+  navbarWidth?: number
+  navbarCollapsed?: boolean
+  children: React.ReactNode
+}
+
+function FnAppShell({
+  header,
+  navbar,
+  navbarWidth = 250,
+  navbarCollapsed = false,
+  children,
+}: FnAppShellProps) {
+  return (
+    <AppShell
+      header={header ? { height: 60 } : undefined}
+      navbar={navbar ? { width: navbarWidth, breakpoint: 'sm', collapsed: { mobile: navbarCollapsed, desktop: navbarCollapsed } } : undefined}
+      padding="md"
+    >
+      {header && <AppShell.Header>{header}</AppShell.Header>}
+      {navbar && <AppShell.Navbar p="md">{navbar}</AppShell.Navbar>}
+      <AppShell.Main>{children}</AppShell.Main>
+    </AppShell>
+  )
+}
+
+export { FnAppShell }
+export type { FnAppShellProps }

frontend/functions/ui/apply_theme.md

@@ -1,44 +0,0 @@
----
-name: apply_theme
-kind: function
-lang: ts
-domain: ui
-version: "1.0.0"
-purity: impure
-signature: "applyTheme(theme: Theme): void"
-description: "Inyecta un tema como CSS variables en document.documentElement. Maneja clase dark automáticamente. Mapea 40 tokens semánticos."
-tags: [theme, css-variables, apply, runtime, ui]
-uses_functions: []
-uses_types: [ThemeConfig_ts_ui]
-returns: []
-returns_optional: false
-error_type: "error_go_core"
-imports: []
-params:
-  - name: theme
-    desc: "Objeto Theme con nombre, label y colores a inyectar como CSS variables"
-output: "Void - función impura que inyecta CSS variables en document.documentElement"
-tested: false
-tests: []
-test_file_path: ""
-file_path: "frontend/functions/ui/apply_theme.tsx"
-source_repo: "https://gitea-dgg044oo04woo4ggcsws4gk0.organic-machine.com/Bl4cksmith/Frontend_Library"
-source_license: "MIT"
-source_file: "frontend/src/hooks/use-theme.tsx"
----
-
-## Ejemplo
-
-```typescript
-import { applyTheme } from './apply_theme'
-
-applyTheme({
-  name: 'dark',
-  label: 'Oscuro',
-  colors: themeConfigToColors(darkThemeConfig)
-})
-```
-
-## Notas
-
-Función impura (modifica el DOM). Mapea cada key de ThemeColors a una CSS variable. Temas oscuros (dark, midnight, sunset) añaden clase `dark` al root.

frontend/functions/ui/apply_theme.tsx

@@ -1,111 +0,0 @@
-interface ThemeColors {
-  background: string
-  foreground: string
-  card: string
-  cardForeground: string
-  popover: string
-  popoverForeground: string
-  primary: string
-  primaryForeground: string
-  secondary: string
-  secondaryForeground: string
-  muted: string
-  mutedForeground: string
-  accent: string
-  accentForeground: string
-  destructive: string
-  destructiveForeground: string
-  success: string
-  successForeground: string
-  warning: string
-  warningForeground: string
-  info: string
-  infoForeground: string
-  surface: string
-  surfaceHover: string
-  overlay: string
-  border: string
-  input: string
-  ring: string
-  chart1: string
-  chart2: string
-  chart3: string
-  chart4: string
-  chart5: string
-  sidebar: string
-  sidebarForeground: string
-  sidebarPrimary: string
-  sidebarPrimaryForeground: string
-  sidebarAccent: string
-  sidebarAccentForeground: string
-  sidebarBorder: string
-  sidebarRing: string
-}
-
-interface Theme {
-  name: string
-  label: string
-  colors: ThemeColors
-}
-
-const cssVarMap: Record<keyof ThemeColors, string> = {
-  background: '--background',
-  foreground: '--foreground',
-  card: '--card',
-  cardForeground: '--card-foreground',
-  popover: '--popover',
-  popoverForeground: '--popover-foreground',
-  primary: '--primary',
-  primaryForeground: '--primary-foreground',
-  secondary: '--secondary',
-  secondaryForeground: '--secondary-foreground',
-  muted: '--muted',
-  mutedForeground: '--muted-foreground',
-  accent: '--accent',
-  accentForeground: '--accent-foreground',
-  destructive: '--destructive',
-  destructiveForeground: '--destructive-foreground',
-  success: '--success',
-  successForeground: '--success-foreground',
-  warning: '--warning',
-  warningForeground: '--warning-foreground',
-  info: '--info',
-  infoForeground: '--info-foreground',
-  surface: '--surface',
-  surfaceHover: '--surface-hover',
-  overlay: '--overlay',
-  border: '--border',
-  input: '--input',
-  ring: '--ring',
-  chart1: '--chart-1',
-  chart2: '--chart-2',
-  chart3: '--chart-3',
-  chart4: '--chart-4',
-  chart5: '--chart-5',
-  sidebar: '--sidebar',
-  sidebarForeground: '--sidebar-foreground',
-  sidebarPrimary: '--sidebar-primary',
-  sidebarPrimaryForeground: '--sidebar-primary-foreground',
-  sidebarAccent: '--sidebar-accent',
-  sidebarAccentForeground: '--sidebar-accent-foreground',
-  sidebarBorder: '--sidebar-border',
-  sidebarRing: '--sidebar-ring',
-}
-
-export function applyTheme(theme: Theme): void {
-  const root = document.documentElement
-  const colors = theme.colors
-
-  Object.entries(cssVarMap).forEach(([key, cssVar]) => {
-    const value = colors[key as keyof ThemeColors]
-    root.style.setProperty(cssVar, value)
-  })
-
-  if (theme.name === 'dark' || theme.name === 'midnight' || theme.name === 'sunset') {
-    root.classList.add('dark')
-  } else {
-    root.classList.remove('dark')
-  }
-}
-
-export type { Theme, ThemeColors }

frontend/functions/ui/area_chart.md

@@ -6,15 +6,15 @@ domain: ui
 version: "1.0.0"
 purity: impure
 signature: "AreaChart(props: AreaChartProps): JSX.Element"
-description: "Gráfico de área Recharts con gradientes automáticos, multi-series, stacking y tooltips temáticos."
-tags: [chart, area, visualization, recharts, gradient, component, ui]
-uses_functions: [cn_ts_core, chart_container_ts_ui, get_series_color_ts_core]
+description: "Gráfico de área @mantine/charts con gradientes automáticos, multi-series, stacking y tooltips."
+tags: [chart, area, visualization, mantine, gradient, component, ui]
+uses_functions: [chart_container_ts_ui]
 uses_types: [ChartSeries_ts_ui]
 returns: []
 returns_optional: false
 error_type: ""
-imports: [recharts]
-output: "Componente JSX que renderiza un gráfico de área con gradientes, multi-series y tooltips temáticos"
+imports: ["@mantine/charts", "@mantine/core"]
+output: "Componente JSX que renderiza un gráfico de área con gradientes, multi-series y tooltips"
 tested: false
 tests: []
 test_file_path: ""

frontend/functions/ui/area_chart.tsx

@@ -1,9 +1,6 @@
-import {
-  AreaChart as RechartsAreaChart, Area, XAxis, YAxis, CartesianGrid, Tooltip, Legend,
-} from 'recharts'
-import { ChartContainer, ChartTooltipContent, type Series, getSeriesColor } from './chart_container'
-
-interface GradientConfig { from: string; to: string }
+import { AreaChart as MantineAreaChart } from '@mantine/charts'
+import { Paper } from '@mantine/core'
+import { type Series, getSeriesColor } from './chart_container'
 
 interface AreaChartProps {
   data: Record<string, unknown>[]
@@ -11,11 +8,10 @@ interface AreaChartProps {
   yKey?: string
   series?: Series[]
   stacked?: boolean
-  gradient?: GradientConfig | boolean
+  gradient?: boolean
   showGrid?: boolean
   showLegend?: boolean
-  height?: number | string
-  className?: string
+  height?: number
   xAxisFormatter?: (value: unknown) => string
   yAxisFormatter?: (value: unknown) => string
   valueFormatter?: (value: number) => string
@@ -23,40 +19,36 @@ interface AreaChartProps {
 
 function AreaChartComponent({
   data, xKey, yKey, series, stacked = false, gradient = true, showGrid = true,
-  showLegend = false, height = 300, className, xAxisFormatter, yAxisFormatter,
+  showLegend = false, height = 300, xAxisFormatter, yAxisFormatter,
   valueFormatter = (v) => v.toLocaleString(),
 }: AreaChartProps) {
-  const areas = series
-    ? series.map((s, i) => ({ dataKey: s.key, name: s.name, color: getSeriesColor(i, s.color) }))
-    : yKey ? [{ dataKey: yKey, name: yKey, color: getSeriesColor(0) }] : []
-
-  const gradientConfig: GradientConfig | null = gradient
-    ? typeof gradient === 'object' ? gradient : { from: '', to: 'transparent' }
-    : null
+  const chartSeries = series
+    ? series.map((s, i) => ({ name: s.key, label: s.name, color: getSeriesColor(i, s.color) }))
+    : yKey ? [{ name: yKey, label: yKey, color: getSeriesColor(0) }] : []
 
   return (
-    <ChartContainer className={className} height={height}>
-      <RechartsAreaChart data={data} margin={{ top: 10, right: 10, left: 10, bottom: 10 }}>
-        <defs>
-          {areas.map((area) => (
-            <linearGradient key={area.dataKey} id={`gradient-${area.dataKey}`} x1="0" y1="0" x2="0" y2="1">
-              <stop offset="5%" stopColor={gradientConfig?.from || area.color} stopOpacity={0.8} />
-              <stop offset="95%" stopColor={gradientConfig?.to || area.color} stopOpacity={0.1} />
-            </linearGradient>
-          ))}
-        </defs>
-        {showGrid && <CartesianGrid strokeDasharray="3 3" className="stroke-muted" />}
-        <XAxis dataKey={xKey} tickFormatter={xAxisFormatter} className="text-xs fill-muted-foreground" />
-        <YAxis tickFormatter={yAxisFormatter} className="text-xs fill-muted-foreground" />
-        <Tooltip content={<ChartTooltipContent valueFormatter={valueFormatter} />} cursor={{ stroke: 'hsl(var(--muted-foreground))', strokeDasharray: '3 3' }} />
-        {showLegend && <Legend />}
-        {areas.map((area) => (
-          <Area key={area.dataKey} type="monotone" dataKey={area.dataKey} name={area.name} stroke={area.color} strokeWidth={2} fill={gradient ? `url(#gradient-${area.dataKey})` : area.color} fillOpacity={gradient ? 1 : 0.3} stackId={stacked ? 'stack' : undefined} />
-        ))}
-      </RechartsAreaChart>
-    </ChartContainer>
+    <Paper p="md">
+      <MantineAreaChart
+        h={height}
+        data={data}
+        dataKey={xKey}
+        series={chartSeries}
+        type={stacked ? 'stacked' : 'default'}
+        curveType="monotone"
+        withGradient={gradient}
+        gridAxis={showGrid ? 'xy' : 'none'}
+        withLegend={showLegend}
+        withTooltip
+        valueFormatter={valueFormatter}
+        xAxisProps={xAxisFormatter ? { tickFormatter: xAxisFormatter } : undefined}
+        yAxisProps={yAxisFormatter ? { tickFormatter: yAxisFormatter } : undefined}
+      />
+    </Paper>
   )
 }
 
+/** @deprecated Gradient is handled by Mantine's withGradient prop */
+type GradientConfig = { from: string; to: string }
+
 export const AreaChart = AreaChartComponent
 export type { AreaChartProps, GradientConfig }

frontend/functions/ui/auth_form.md

@@ -0,0 +1,101 @@
+---
+name: auth_form
+kind: component
+lang: ts
+domain: ui
+version: "1.0.0"
+purity: impure
+signature: "AuthForm(config: AuthFormConfig): ReactElement"
+description: "Genera página de autenticación con toggle login/register, social buttons opcionales, campos extra en registro y validación. Basado en Mantine AuthenticationForm."
+tags: [auth, login, register, form, page, ui, mantine, toggle]
+uses_functions: []
+uses_types: []
+returns: []
+returns_optional: false
+error_type: ""
+imports: ["@mantine/core", "@mantine/hooks"]
+has_state: true
+framework: react
+emits: [onSubmit]
+params:
+  - name: title
+    desc: "Título principal que aparece en la cabecera del formulario (default: 'Welcome')"
+  - name: socialButtons
+    desc: "Lista de botones de login social, cada uno con label, icono opcional y callback onClick"
+  - name: extraFields
+    desc: "Campos de texto adicionales que se muestran únicamente en el modo registro (ej: nombre, empresa)"
+  - name: onSubmit
+    desc: "Callback invocado al enviar el formulario con type ('login'|'register'), email, password y valores de extraFields"
+  - name: defaultType
+    desc: "Modo inicial del formulario: 'login' (default) o 'register'"
+  - name: paperProps
+    desc: "Props de Mantine Paper para personalizar el contenedor (shadow, radius, p, etc.)"
+output: "Página de autenticación completa con toggle login/register, campos email/password, botones sociales opcionales y campo de términos en registro"
+tested: false
+tests: []
+test_file_path: ""
+file_path: "frontend/functions/ui/auth_form.tsx"
+source_repo: ""
+source_license: ""
+source_file: ""
+---
+
+## Ejemplo
+
+### Config mínima (solo login)
+
+```tsx
+import { AuthForm } from '@fn_library/auth_form'
+
+function LoginPage() {
+  return (
+    <AuthForm
+      title="Acceder"
+      onSubmit={({ type, email, password }) => {
+        console.log(type, email, password)
+      }}
+    />
+  )
+}
+```
+
+### Con social buttons y campos extra en registro
+
+```tsx
+import { AuthForm } from '@fn_library/auth_form'
+import { IconBrandGoogle, IconBrandGithub } from '@tabler/icons-react'
+
+function AuthPage() {
+  return (
+    <AuthForm
+      title="fn_registry"
+      defaultType="register"
+      socialButtons={[
+        { label: 'Google', icon: <IconBrandGoogle size={16} />, onClick: () => signInWithGoogle() },
+        { label: 'GitHub', icon: <IconBrandGithub size={16} />, onClick: () => signInWithGitHub() },
+      ]}
+      extraFields={[
+        { name: 'name', label: 'Nombre completo', placeholder: 'Lucas García', required: true },
+        { name: 'company', label: 'Empresa', placeholder: 'Acme Corp' },
+      ]}
+      onSubmit={({ type, email, password, name, company }) => {
+        if (type === 'register') {
+          registerUser({ email, password, name, company })
+        } else {
+          loginUser({ email, password })
+        }
+      }}
+    />
+  )
+}
+```
+
+## Notas
+
+Función con estado interno (useToggle, useState de @mantine/hooks). Gestiona el toggle entre login y register sin prop externa — el padre solo recibe el valor final via onSubmit.type.
+
+Los `extraFields` solo se renderizan en modo register. El campo de términos y condiciones (Checkbox) también es exclusivo del registro.
+
+Los `socialButtons` se renderizan con un Divider "O continúa con email" cuando están presentes. Sin socialButtons el Divider no aparece.
+
+El campo `password` usa PasswordInput de Mantine, que incluye el toggle de visibilidad integrado.

frontend/functions/ui/auth_form.tsx

@@ -0,0 +1,181 @@
+import * as React from 'react'
+import {
+  Anchor,
+  Button,
+  Checkbox,
+  Divider,
+  Group,
+  Paper,
+  PasswordInput,
+  Stack,
+  Text,
+  TextInput,
+  Title,
+  Container,
+  type PaperProps,
+} from '@mantine/core'
+import { useToggle, upperFirst } from '@mantine/hooks'
+
+interface SocialButtonConfig {
+  label: string
+  icon?: React.ReactNode
+  onClick?: () => void
+}
+
+interface ExtraFieldConfig {
+  name: string
+  label: string
+  placeholder?: string
+  required?: boolean
+}
+
+interface AuthFormSubmitValues {
+  type: 'login' | 'register'
+  email: string
+  password: string
+  [key: string]: unknown
+}
+
+interface AuthFormConfig {
+  /** Título principal de la página */
+  title?: string
+  /** Botones de autenticación social opcionales */
+  socialButtons?: SocialButtonConfig[]
+  /** Campos adicionales que se muestran solo en el modo registro */
+  extraFields?: ExtraFieldConfig[]
+  /** Callback invocado al enviar el formulario */
+  onSubmit?: (values: AuthFormSubmitValues) => void
+  /** Modo inicial: 'login' (default) o 'register' */
+  defaultType?: 'login' | 'register'
+  /** Props adicionales para el Paper contenedor */
+  paperProps?: PaperProps
+}
+
+function AuthForm({
+  title = 'Welcome',
+  socialButtons = [],
+  extraFields = [],
+  onSubmit,
+  defaultType = 'login',
+  paperProps,
+}: AuthFormConfig): React.ReactElement {
+  const [type, toggle] = useToggle<'login' | 'register'>([
+    defaultType,
+    defaultType === 'login' ? 'register' : 'login',
+  ])
+  const [email, setEmail] = React.useState('')
+  const [password, setPassword] = React.useState('')
+  const [terms, setTerms] = React.useState(true)
+  const [extraValues, setExtraValues] = React.useState<Record<string, string>>({})
+
+  const handleSubmit = (e: React.FormEvent) => {
+    e.preventDefault()
+    onSubmit?.({ type, email, password, ...extraValues })
+  }
+
+  const handleExtraChange = (name: string, value: string) => {
+    setExtraValues((prev) => ({ ...prev, [name]: value }))
+  }
+
+  return (
+    <Container size={420} py={40}>
+      <Paper radius="md" p="lg" withBorder {...paperProps}>
+        <Title order={2} ta="center" mb="md">
+          {title}
+        </Title>
+
+        {socialButtons.length > 0 && (
+          <>
+            <Group grow mb="md" gap="xs">
+              {socialButtons.map((btn) => (
+                <Button
+                  key={btn.label}
+                  variant="default"
+                  radius="xl"
+                  leftSection={btn.icon}
+                  onClick={btn.onClick}
+                >
+                  {btn.label}
+                </Button>
+              ))}
+            </Group>
+            <Divider label="O continúa con email" labelPosition="center" my="lg" />
+          </>
+        )}
+
+        <form onSubmit={handleSubmit}>
+          <Stack gap="sm">
+            {type === 'register' &&
+              extraFields.map((field) => (
+                <TextInput
+                  key={field.name}
+                  label={field.label}
+                  placeholder={field.placeholder}
+                  required={field.required}
+                  value={extraValues[field.name] ?? ''}
+                  onChange={(e) => handleExtraChange(field.name, e.currentTarget.value)}
+                  radius="md"
+                />
+              ))}
+
+            <TextInput
+              required
+              label="Email"
+              placeholder="tu@email.com"
+              value={email}
+              onChange={(e) => setEmail(e.currentTarget.value)}
+              radius="md"
+            />
+
+            <PasswordInput
+              required
+              label="Contraseña"
+              placeholder="Tu contraseña"
+              value={password}
+              onChange={(e) => setPassword(e.currentTarget.value)}
+              radius="md"
+            />
+
+            {type === 'register' && (
+              <Checkbox
+                label="Acepto los términos y condiciones"
+                checked={terms}
+                onChange={(e) => setTerms(e.currentTarget.checked)}
+              />
+            )}
+          </Stack>
+
+          <Group justify="space-between" mt="xl">
+            <Anchor
+              component="button"
+              type="button"
+              c="dimmed"
+              size="xs"
+              onClick={() => toggle()}
+            >
+              {type === 'register'
+                ? '¿Ya tienes cuenta? Inicia sesión'
+                : '¿No tienes cuenta? Regístrate'}
+            </Anchor>
+            <Button type="submit" radius="xl">
+              {upperFirst(type)}
+            </Button>
+          </Group>
+        </form>
+
+        {type === 'register' && (
+          <Text c="dimmed" size="xs" ta="center" mt="md">
+            Al registrarte aceptas nuestra{' '}
+            <Anchor size="xs" href="#">
+              política de privacidad
+            </Anchor>
+            .
+          </Text>
+        )}
+      </Paper>
+    </Container>
+  )
+}
+
+export { AuthForm }
+export type { AuthFormConfig, AuthFormSubmitValues, SocialButtonConfig, ExtraFieldConfig }

frontend/functions/ui/autocomplete.md

@@ -0,0 +1,136 @@
+---
+name: autocomplete
+kind: component
+lang: ts
+domain: ui
+version: "1.0.0"
+purity: impure
+signature: "Autocomplete(props: AutocompleteProps): JSX.Element"
+description: "Input con sugerencias de autocompletado. Permite valores libres a diferencia de Select. Wrapper sobre Mantine Autocomplete."
+tags: [autocomplete, input, form, suggestions, component, ui, interactive, mantine]
+uses_functions: []
+uses_types: []
+returns: []
+returns_optional: false
+error_type: "error_go_core"
+imports: ["@mantine/core"]
+output: "Componente Autocomplete que renderiza input con dropdown de sugerencias filtradas"
+props:
+  - name: data
+    type: "string[] | { value: string; label?: string; group?: string }[]"
+    required: true
+    description: "Lista de opciones a mostrar en el dropdown"
+  - name: value
+    type: "string"
+    required: false
+    description: "Valor controlado del input"
+  - name: onChange
+    type: "(value: string) => void"
+    required: false
+    description: "Callback al cambiar el valor del input"
+  - name: label
+    type: "string"
+    required: false
+    description: "Etiqueta visible encima del input"
+  - name: placeholder
+    type: "string"
+    required: false
+    description: "Texto placeholder cuando el input está vacío"
+  - name: clearable
+    type: "boolean"
+    required: false
+    description: "Muestra botón para limpiar el valor"
+  - name: loading
+    type: "boolean"
+    required: false
+    description: "Muestra spinner de carga en el input"
+  - name: disabled
+    type: "boolean"
+    required: false
+    description: "Deshabilita el input"
+  - name: limit
+    type: "number"
+    required: false
+    description: "Número máximo de sugerencias a mostrar en el dropdown"
+  - name: size
+    type: "'xs' | 'sm' | 'md' | 'lg' | 'xl'"
+    required: false
+    description: "Tamaño visual del input"
+emits: [onChange]
+has_state: true
+framework: react
+tested: false
+tests: []
+test_file_path: ""
+file_path: "frontend/functions/ui/autocomplete.tsx"
+---
+
+## Ejemplo
+
+```tsx
+import { Autocomplete } from '@fn_library/autocomplete'
+
+// Básico — lista de strings
+function BasicAutocomplete() {
+  return (
+    <Autocomplete
+      label="País"
+      placeholder="Escribe para buscar..."
+      data={['Argentina', 'Brasil', 'Chile', 'Colombia', 'Uruguay']}
+    />
+  )
+}
+
+// Con grupos
+function GroupedAutocomplete() {
+  return (
+    <Autocomplete
+      label="Ciudad"
+      placeholder="Selecciona una ciudad"
+      data={[
+        { value: 'Buenos Aires', group: 'Argentina' },
+        { value: 'Rosario', group: 'Argentina' },
+        { value: 'São Paulo', group: 'Brasil' },
+        { value: 'Río de Janeiro', group: 'Brasil' },
+      ]}
+      limit={5}
+    />
+  )
+}
+
+// Con loading y clearable (búsqueda asíncrona)
+function AsyncAutocomplete() {
+  const [value, setValue] = useState('')
+  const [data, setData] = useState<string[]>([])
+  const [loading, setLoading] = useState(false)
+
+  const handleChange = async (val: string) => {
+    setValue(val)
+    if (val.length < 2) return
+    setLoading(true)
+    const results = await fetchSuggestions(val)
+    setData(results)
+    setLoading(false)
+  }
+
+  return (
+    <Autocomplete
+      label="Búsqueda"
+      placeholder="Escribe al menos 2 caracteres..."
+      value={value}
+      onChange={handleChange}
+      data={data}
+      loading={loading}
+      clearable
+    />
+  )
+}
+```
+
+## Notas
+
+A diferencia de `Select`, `Autocomplete` permite que el usuario ingrese cualquier valor libre, no solo los de la lista. Ideal para búsquedas con sugerencias donde el valor final puede no estar en el dataset.
+
+Cuando `data` contiene objetos con `group`, el dropdown agrupa visualmente las opciones bajo el encabezado del grupo.
+
+El prop `limit` controla cuántas sugerencias se muestran simultáneamente (por defecto Mantine muestra todas). Útil para datasets grandes o búsquedas asíncronas donde se quiere limitar el ruido visual.

frontend/functions/ui/autocomplete.tsx

@@ -0,0 +1,10 @@
+import { Autocomplete as MantineAutocomplete, type AutocompleteProps as MantineAutcompleteProps } from '@mantine/core'
+
+interface AutocompleteProps extends MantineAutcompleteProps {}
+
+function Autocomplete(props: AutocompleteProps) {
+  return <MantineAutocomplete {...props} />
+}
+
+export { Autocomplete }
+export type { AutocompleteProps }

frontend/functions/ui/avatar.md

@@ -6,14 +6,14 @@ domain: ui
 version: "1.0.0"
 purity: impure
 signature: "Avatar(props: AvatarProps): JSX.Element"
-description: "Imagen de usuario circular con fallback a iniciales generadas automaticamente. 5 tamaños via CVA."
-tags: [avatar, user, image, component, ui, cva]
-uses_functions: [cn_ts_core]
+description: "Imagen de usuario circular con fallback a iniciales generadas automaticamente. 5 tamaños via Mantine Avatar."
+tags: [avatar, user, image, component, ui, mantine]
+uses_functions: []
 uses_types: []
 returns: []
 returns_optional: false
 error_type: ""
-imports: ["class-variance-authority"]
+imports: ["@mantine/core"]
 output: "Componente Avatar que renderiza imagen de usuario circular con fallback a iniciales generadas"
 tested: false
 tests: []
@@ -45,7 +45,7 @@ props:
     required: false
     description: "Clases CSS adicionales"
 emits: []
-has_state: true
+has_state: false
 framework: react
 variant: [xs, sm, md, lg, xl]
 ---
@@ -68,4 +68,4 @@ variant: [xs, sm, md, lg, xl]
 
 ## Notas
 
-Usa estado interno para manejar errores de carga de imagen (onError). La funcion getInitials extrae 2 iniciales del nombre completo (primera y ultima palabra). Si solo hay una palabra, toma los 2 primeros caracteres. Usa forwardRef para compatibilidad con wrappers.
+Usa Mantine Avatar que maneja errores de carga de imagen nativamente. La funcion getInitials extrae 2 iniciales del nombre completo (primera y ultima palabra). Si solo hay una palabra, toma los 2 primeros caracteres. Usa forwardRef para compatibilidad con wrappers.

frontend/functions/ui/avatar.tsx

@@ -1,69 +1,57 @@
-import * as React from "react"
-import { cva, type VariantProps } from "class-variance-authority"
-import { cn } from "../core/cn"
+import * as React from 'react'
+import { Avatar as MantineAvatar } from '@mantine/core'
 
-const avatarVariants = cva(
-  "relative inline-flex shrink-0 items-center justify-center overflow-hidden rounded-full bg-muted font-medium text-muted-foreground select-none",
-  {
-    variants: {
-      size: {
-        xs: "size-6 text-xs",
-        sm: "size-8 text-sm",
-        md: "size-10 text-base",
-        lg: "size-12 text-lg",
-        xl: "size-16 text-xl",
-      },
-    },
-    defaultVariants: { size: "md" },
-  }
-)
+type AvatarSize = 'xs' | 'sm' | 'md' | 'lg' | 'xl'
 
-interface AvatarProps
-  extends React.ComponentPropsWithoutRef<"span">,
-    VariantProps<typeof avatarVariants> {
+const sizeMap: Record<AvatarSize, string> = {
+  xs: 'sm',
+  sm: 'sm',
+  md: 'md',
+  lg: 'lg',
+  xl: 'xl',
+}
+
+interface AvatarProps extends React.ComponentPropsWithoutRef<'div'> {
   src?: string
   alt?: string
   fallback?: string
   initials?: string
+  size?: AvatarSize
 }
 
 function getInitials(name?: string): string {
-  if (!name) return "?"
+  if (!name) return '?'
   const parts = name.trim().split(/\s+/)
-  if (parts.length === 1) return parts[0].slice(0, 2).toUpperCase()
-  return (parts[0][0] + parts[parts.length - 1][0]).toUpperCase()
+  const first = parts[0] ?? ''
+  const last = parts[parts.length - 1] ?? ''
+  if (parts.length === 1) return first.slice(0, 2).toUpperCase()
+  return ((first[0] ?? '') + (last[0] ?? '')).toUpperCase()
 }
 
-const Avatar = React.forwardRef<HTMLSpanElement, AvatarProps>(
-  ({ className, size, src, alt, fallback, initials, ...props }, ref) => {
-    const [imgError, setImgError] = React.useState(false)
-    const showImage = src && !imgError
+/** Kept for backwards compatibility */
+const avatarVariants = sizeMap
+
+const Avatar = React.forwardRef<HTMLDivElement, AvatarProps>(
+  ({ className, size = 'md', src, alt, fallback, initials, ...props }, ref) => {
     const displayInitials = initials ?? getInitials(fallback ?? alt)
 
     return (
-      <span
+      <MantineAvatar
         ref={ref}
         data-slot="avatar"
-        className={cn(avatarVariants({ size }), className)}
+        src={src}
+        alt={alt ?? ''}
+        size={sizeMap[size]}
+        radius="xl"
+        className={className}
         {...props}
       >
-        {showImage ? (
-          <img
-            src={src}
-            alt={alt ?? ""}
-            className="aspect-square size-full object-cover"
-            onError={() => setImgError(true)}
-          />
-        ) : (
-          <span data-slot="avatar-fallback" aria-hidden="true">
-            {displayInitials}
-          </span>
-        )}
-      </span>
+        {displayInitials}
+      </MantineAvatar>
     )
   }
 )
-Avatar.displayName = "Avatar"
+Avatar.displayName = 'Avatar'
 
 export { Avatar, avatarVariants }
-export type { AvatarProps }
+export type { AvatarProps, AvatarSize }

frontend/functions/ui/badge.md

@@ -6,14 +6,14 @@ domain: ui
 version: "1.0.0"
 purity: impure
 signature: "Badge(props: BadgeProps & VariantProps<typeof badgeVariants>): JSX.Element"
-description: "Badge con 10 variantes semánticas (default, secondary, destructive, outline, ghost, link, success, warning, error, info) y 2 tamaños."
-tags: [badge, status, component, ui, indicator]
-uses_functions: [cn_ts_core]
+description: "Badge con 10 variantes semánticas (default, secondary, destructive, outline, ghost, link, success, warning, error, info) y 2 tamaños. Mantine Badge."
+tags: [badge, status, component, ui, indicator, mantine]
+uses_functions: []
 uses_types: []
 returns: []
 returns_optional: false
 error_type: ""
-imports: ["class-variance-authority"]
+imports: ["@mantine/core"]
 output: "Componente Badge que renderiza un indicador visual con 10 variantes semánticas de estado"
 tested: false
 tests: []
@@ -46,4 +46,4 @@ source_file: "frontend/src/components/ui/badge.tsx"
 
 ## Notas
 
-Versión simplificada que usa span nativo en lugar de useRender de Base-UI. Mantiene todas las variantes y la composibilidad con cn().
+Usa Mantine Badge internamente. Las 10 variantes se mapean a combinaciones de variant+color de Mantine (filled, light, outline, subtle, transparent).

frontend/functions/ui/badge.tsx

@@ -1,45 +1,47 @@
-import * as React from "react"
-import { cva, type VariantProps } from "class-variance-authority"
-import { cn } from "../core/cn"
+import * as React from 'react'
+import { Badge as MantineBadge } from '@mantine/core'
 
-const badgeVariants = cva(
-  "group/badge inline-flex h-5 w-fit shrink-0 items-center justify-center gap-1 overflow-hidden rounded-4xl border border-transparent px-2 py-0.5 text-xs font-medium whitespace-nowrap transition-all focus-visible:border-ring focus-visible:ring-[3px] focus-visible:ring-ring/50 [&>svg]:pointer-events-none [&>svg]:size-3!",
-  {
-    variants: {
-      variant: {
-        default: "bg-primary text-primary-foreground [a]:hover:bg-primary/80",
-        secondary: "bg-secondary text-secondary-foreground [a]:hover:bg-secondary/80",
-        destructive: "bg-destructive/10 text-destructive [a]:hover:bg-destructive/20",
-        outline: "border-border text-foreground [a]:hover:bg-muted",
-        ghost: "hover:bg-muted hover:text-muted-foreground dark:hover:bg-muted/50",
-        link: "text-primary underline-offset-4 hover:underline",
-        success: "bg-green-500/10 text-green-600 dark:bg-green-500/20 dark:text-green-400",
-        warning: "bg-yellow-500/10 text-yellow-600 dark:bg-yellow-500/20 dark:text-yellow-400",
-        error: "bg-red-500/10 text-red-600 dark:bg-red-500/20 dark:text-red-400",
-        info: "bg-blue-500/10 text-blue-600 dark:bg-blue-500/20 dark:text-blue-400",
-      },
-      size: {
-        default: "h-5 px-2 text-xs",
-        sm: "h-4 px-1.5 text-[10px]",
-      },
-    },
-    defaultVariants: {
-      variant: "default",
-      size: "default",
-    },
-  }
-)
+type BadgeVariant = 'default' | 'secondary' | 'destructive' | 'outline' | 'ghost' | 'link' | 'success' | 'warning' | 'error' | 'info'
+type BadgeSize = 'default' | 'sm'
 
-interface BadgeProps extends React.HTMLAttributes<HTMLSpanElement>, VariantProps<typeof badgeVariants> {}
+const variantMap: Record<BadgeVariant, { variant: string; color?: string }> = {
+  default: { variant: 'filled' },
+  secondary: { variant: 'light' },
+  destructive: { variant: 'light', color: 'red' },
+  outline: { variant: 'outline' },
+  ghost: { variant: 'subtle' },
+  link: { variant: 'transparent' },
+  success: { variant: 'light', color: 'green' },
+  warning: { variant: 'light', color: 'yellow' },
+  error: { variant: 'light', color: 'red' },
+  info: { variant: 'light', color: 'blue' },
+}
+
+/** Kept for backwards compatibility */
+const badgeVariants = variantMap
+
+interface BadgeProps extends React.HTMLAttributes<HTMLDivElement> {
+  variant?: BadgeVariant
+  size?: BadgeSize
+}
+
+function Badge({ className, variant = 'default', size = 'default', children, ...props }: BadgeProps) {
+  const mv = variantMap[variant]
 
-function Badge({ className, variant = "default", size = "default", ...props }: BadgeProps) {
   return (
-    <span
+    <MantineBadge
       data-slot="badge"
-      className={cn(badgeVariants({ variant, size }), className)}
+      variant={mv.variant}
+      color={mv.color}
+      size={size === 'sm' ? 'xs' : 'sm'}
+      radius="xl"
+      className={className}
       {...props}
-    />
+    >
+      {children}
+    </MantineBadge>
   )
 }
 
 export { Badge, badgeVariants }
+export type { BadgeProps, BadgeVariant, BadgeSize }

frontend/functions/ui/bar_chart.md

@@ -6,15 +6,15 @@ domain: ui
 version: "1.1.0"
 purity: impure
 signature: "BarChart(props: BarChartProps): JSX.Element"
-description: "Gráfico de barras Recharts con multi-series, orientación horizontal/vertical, tooltips temáticos y bordes redondeados."
-tags: [chart, bar, visualization, recharts, component, ui]
-uses_functions: [cn_ts_core, chart_container_ts_ui, get_series_color_ts_core]
+description: "Gráfico de barras @mantine/charts con multi-series, orientación horizontal/vertical y tooltips."
+tags: [chart, bar, visualization, mantine, component, ui]
+uses_functions: [chart_container_ts_ui]
 uses_types: [ChartSeries_ts_ui]
 returns: []
 returns_optional: false
 error_type: ""
-imports: [recharts]
-output: "Componente JSX que renderiza un gráfico de barras vertical u horizontal con multi-series y tooltips temáticos"
+imports: ["@mantine/charts", "@mantine/core"]
+output: "Componente JSX que renderiza un gráfico de barras vertical u horizontal con multi-series y tooltips"
 tested: false
 tests: []
 test_file_path: ""
@@ -54,4 +54,4 @@ source_file: "frontend/src/components/ui/charts/bar-chart.tsx"
 
 ## Notas
 
-En modo `horizontal=true`: el layout de Recharts es `'vertical'`, YAxis recibe `dataKey={xKey}` con `type="category"` (categorías en eje Y), XAxis recibe `type="number"` (valores en eje X). El radius de las barras se ajusta a `[0, 4, 4, 0]` para redondear la punta derecha. Este intercambio de ejes es obligatorio — sin él las barras horizontales no se renderizan.
+En modo `horizontal=true` se pasa `orientation="vertical"` a Mantine BarChart, que internamente intercambia los ejes.

frontend/functions/ui/bar_chart.tsx

@@ -1,7 +1,6 @@
-import {
-  BarChart as RechartsBarChart, Bar, XAxis, YAxis, CartesianGrid, Tooltip, Legend,
-} from 'recharts'
-import { ChartContainer, ChartTooltipContent, type Series, getSeriesColor } from './chart_container'
+import { BarChart as MantineBarChart } from '@mantine/charts'
+import { Paper } from '@mantine/core'
+import { type Series, getSeriesColor } from './chart_container'
 
 interface BarChartProps {
   data: Record<string, unknown>[]
@@ -11,8 +10,7 @@ interface BarChartProps {
   horizontal?: boolean
   showGrid?: boolean
   showLegend?: boolean
-  height?: number | string
-  className?: string
+  height?: number
   xAxisFormatter?: (value: unknown) => string
   yAxisFormatter?: (value: unknown) => string
   valueFormatter?: (value: number) => string
@@ -20,32 +18,28 @@ interface BarChartProps {
 
 function BarChartComponent({
   data, xKey, yKey, series, horizontal = false, showGrid = true, showLegend = false,
-  height = 300, className, xAxisFormatter, yAxisFormatter, valueFormatter = (v) => v.toLocaleString(),
+  height = 300, xAxisFormatter, yAxisFormatter, valueFormatter = (v) => v.toLocaleString(),
 }: BarChartProps) {
-  const bars = series
-    ? series.map((s, i) => ({ dataKey: s.key, name: s.name, fill: getSeriesColor(i, s.color) }))
-    : yKey ? [{ dataKey: yKey, name: yKey, fill: getSeriesColor(0) }] : []
+  const chartSeries = series
+    ? series.map((s, i) => ({ name: s.key, label: s.name, color: getSeriesColor(i, s.color) }))
+    : yKey ? [{ name: yKey, label: yKey, color: getSeriesColor(0) }] : []
 
   return (
-    <ChartContainer className={className} height={height}>
-      <RechartsBarChart data={data} layout={horizontal ? 'vertical' : 'horizontal'} margin={{ top: 10, right: 10, left: 10, bottom: 10 }}>
-        {showGrid && <CartesianGrid strokeDasharray="3 3" className="stroke-muted" />}
-        {horizontal ? (
-          <>
-            <XAxis type="number" tickFormatter={yAxisFormatter} className="text-xs fill-muted-foreground" />
-            <YAxis dataKey={xKey} type="category" tickFormatter={xAxisFormatter} width={80} className="text-xs fill-muted-foreground" />
-          </>
-        ) : (
-          <>
-            <XAxis dataKey={xKey} tickFormatter={xAxisFormatter} className="text-xs fill-muted-foreground" />
-            <YAxis tickFormatter={yAxisFormatter} className="text-xs fill-muted-foreground" />
-          </>
-        )}
-        <Tooltip content={<ChartTooltipContent valueFormatter={valueFormatter} />} cursor={{ fill: 'hsl(var(--muted) / 0.3)' }} />
-        {showLegend && <Legend />}
-        {bars.map((bar) => <Bar key={bar.dataKey} dataKey={bar.dataKey} name={bar.name} fill={bar.fill} radius={horizontal ? [0, 4, 4, 0] : [4, 4, 0, 0]} />)}
-      </RechartsBarChart>
-    </ChartContainer>
+    <Paper p="md">
+      <MantineBarChart
+        h={height}
+        data={data}
+        dataKey={xKey}
+        series={chartSeries}
+        orientation={horizontal ? 'vertical' : 'horizontal'}
+        gridAxis={showGrid ? 'xy' : 'none'}
+        withLegend={showLegend}
+        withTooltip
+        valueFormatter={valueFormatter}
+        xAxisProps={xAxisFormatter ? { tickFormatter: xAxisFormatter } : undefined}
+        yAxisProps={yAxisFormatter ? { tickFormatter: yAxisFormatter } : undefined}
+      />
+    </Paper>
   )
 }
 

frontend/functions/ui/breadcrumb.md

@@ -6,14 +6,14 @@ domain: ui
 version: "1.0.0"
 purity: impure
 signature: "Breadcrumb(props: BreadcrumbProps): JSX.Element"
-description: "Navegacion jerarquica con separadores, elipsis para paths largos y soporte para router links via asChild."
-tags: [breadcrumb, navigation, component, ui]
-uses_functions: [cn_ts_core]
+description: "Navegacion jerarquica con separadores, elipsis para paths largos y soporte para router links via asChild. Mantine Anchor/Text."
+tags: [breadcrumb, navigation, component, ui, mantine]
+uses_functions: []
 uses_types: []
 returns: []
 returns_optional: false
 error_type: ""
-imports: ["lucide-react"]
+imports: ["@mantine/core", "@tabler/icons-react"]
 output: "Componente Breadcrumb que renderiza navegación jerárquica con separadores, elipsis y soporte para router links"
 tested: false
 tests: []
@@ -69,4 +69,4 @@ variant: []
 
 ## Notas
 
-Exports: Breadcrumb (nav), BreadcrumbList (ol), BreadcrumbItem (li), BreadcrumbLink (a con asChild), BreadcrumbPage (span aria-current=page), BreadcrumbSeparator (ChevronRight por defecto, customizable), BreadcrumbEllipsis (MoreHorizontal). BreadcrumbLink acepta asChild para usar con Link de React Router o Next.js.
+Exports: Breadcrumb (nav), BreadcrumbList (ol via Group), BreadcrumbItem (li via Group), BreadcrumbLink (Mantine Anchor con asChild), BreadcrumbPage (Text aria-current=page), BreadcrumbSeparator (IconChevronRight por defecto, customizable), BreadcrumbEllipsis (IconDots). BreadcrumbLink acepta asChild para usar con Link de React Router o Next.js. Usa Tabler icons en vez de lucide-react.

frontend/functions/ui/breadcrumb.tsx

@@ -1,28 +1,24 @@
 import * as React from "react"
-import { ChevronRightIcon, MoreHorizontalIcon } from "lucide-react"
-import { cn } from "../core/cn"
+import { Anchor, Text, Box } from "@mantine/core"
+import { IconChevronRight, IconDots } from "@tabler/icons-react"
 
-function Breadcrumb({ ...props }: React.ComponentPropsWithoutRef<"nav">) {
-  return <nav data-slot="breadcrumb" aria-label="breadcrumb" {...props} />
+function Breadcrumb({ children, ...props }: React.ComponentPropsWithoutRef<"nav">) {
+  return <nav data-slot="breadcrumb" aria-label="breadcrumb" {...props}>{children}</nav>
 }
 
-function BreadcrumbList({ className, ...props }: React.ComponentPropsWithoutRef<"ol">) {
+function BreadcrumbList({ className, children, ...props }: React.ComponentPropsWithoutRef<"ol">) {
   return (
-    <ol
-      data-slot="breadcrumb-list"
-      className={cn("flex flex-wrap items-center gap-1.5 break-words text-sm text-muted-foreground sm:gap-2.5", className)}
-      {...props}
-    />
+    <ol data-slot="breadcrumb-list" style={{ listStyle: "none", display: "flex", flexWrap: "wrap", alignItems: "center", gap: 8, padding: 0, margin: 0 }} className={className} {...props}>
+      {children}
+    </ol>
   )
 }
 
-function BreadcrumbItem({ className, ...props }: React.ComponentPropsWithoutRef<"li">) {
+function BreadcrumbItem({ className, children, ...props }: React.ComponentPropsWithoutRef<"li">) {
   return (
-    <li
-      data-slot="breadcrumb-item"
-      className={cn("inline-flex items-center gap-1.5", className)}
-      {...props}
-    />
+    <li data-slot="breadcrumb-item" style={{ display: "flex", alignItems: "center", gap: 8 }} className={className} {...props}>
+      {children}
+    </li>
   )
 }
 
@@ -35,31 +31,29 @@ function BreadcrumbLink({
 }: React.ComponentPropsWithoutRef<"a"> & { asChild?: boolean }) {
   if (asChild) {
     return (
-      <span data-slot="breadcrumb-link" className={cn("transition-colors hover:text-foreground", className)} {...(props as React.ComponentPropsWithoutRef<"span">)}>
+      <Text data-slot="breadcrumb-link" component="span" size="sm" className={className} {...(props as React.ComponentPropsWithoutRef<"span">)}>
         {children}
-      </span>
+      </Text>
     )
   }
   return (
-    <a
-      data-slot="breadcrumb-link"
-      href={href}
-      className={cn("transition-colors hover:text-foreground", className)}
-      {...props}
-    >
+    <Anchor data-slot="breadcrumb-link" href={href} size="sm" className={className} {...props}>
       {children}
-    </a>
+    </Anchor>
   )
 }
 
 function BreadcrumbPage({ className, ...props }: React.ComponentPropsWithoutRef<"span">) {
   return (
-    <span
+    <Text
       data-slot="breadcrumb-page"
+      component="span"
+      size="sm"
+      fw={500}
       role="link"
       aria-current="page"
       aria-disabled="true"
-      className={cn("font-medium text-foreground", className)}
+      className={className}
       {...props}
     />
   )
@@ -67,30 +61,34 @@ function BreadcrumbPage({ className, ...props }: React.ComponentPropsWithoutRef<
 
 function BreadcrumbSeparator({ children, className, ...props }: React.ComponentProps<"li">) {
   return (
-    <li
+    <Box
       data-slot="breadcrumb-separator"
+      component="li"
       role="presentation"
       aria-hidden="true"
-      className={cn("[&>svg]:size-3.5", className)}
+      className={className}
+      style={{ display: "flex", alignItems: "center" }}
       {...props}
     >
-      {children ?? <ChevronRightIcon />}
-    </li>
+      {children ?? <IconChevronRight size={14} />}
+    </Box>
   )
 }
 
 function BreadcrumbEllipsis({ className, ...props }: React.ComponentPropsWithoutRef<"span">) {
   return (
-    <span
+    <Box
       data-slot="breadcrumb-ellipsis"
+      component="span"
       role="presentation"
       aria-hidden="true"
-      className={cn("flex size-9 items-center justify-center", className)}
+      style={{ display: "flex", width: 36, height: 36, alignItems: "center", justifyContent: "center" }}
+      className={className}
       {...props}
     >
-      <MoreHorizontalIcon className="size-4" />
-      <span className="sr-only">More</span>
-    </span>
+      <IconDots size={16} />
+      <span style={{ position: "absolute", width: 1, height: 1, padding: 0, margin: -1, overflow: "hidden", clip: "rect(0,0,0,0)", whiteSpace: "nowrap", borderWidth: 0 }}>More</span>
+    </Box>
   )
 }
 

frontend/functions/ui/button.md

@@ -6,14 +6,14 @@ domain: ui
 version: "1.0.0"
 purity: impure
 signature: "Button(props: ButtonProps & VariantProps<typeof buttonVariants>): JSX.Element"
-description: "Botón accesible con 6 variantes (default, outline, secondary, ghost, destructive, link) y 8 tamaños. Base-UI primitivo con CVA."
-tags: [button, component, ui, interactive, cva]
-uses_functions: [cn_ts_core]
+description: "Botón accesible con 6 variantes (default, outline, secondary, ghost, destructive, link) y 8 tamaños. Mantine Button."
+tags: [button, component, ui, interactive, mantine]
+uses_functions: []
 uses_types: []
 returns: []
 returns_optional: false
 error_type: ""
-imports: ["@base-ui/react", "class-variance-authority"]
+imports: ["@mantine/core"]
 output: "JSX.Element: botón renderizado con los estilos y comportamientos configurados"
 tested: false
 tests: []
@@ -51,4 +51,4 @@ source_file: "frontend/src/components/ui/button.tsx"
 
 ## Notas
 
-Componente base del sistema. Usa Base-UI Button primitive para accesibilidad completa (keyboard, ARIA). CVA para gestión type-safe de variantes.
+Componente base del sistema. Usa Mantine Button para accesibilidad completa (keyboard, ARIA). Las variantes se mapean a Mantine: default->filled, outline->outline, secondary->light, ghost->subtle, destructive->filled(red), link->transparent.

frontend/functions/ui/button.tsx

@@ -1,52 +1,64 @@
-"use client"
+import * as React from 'react'
+import { Button as MantineButton } from '@mantine/core'
 
-import { Button as ButtonPrimitive } from "@base-ui/react/button"
-import { cva, type VariantProps } from "class-variance-authority"
-import { cn } from "../core/cn"
+type ButtonVariant = 'default' | 'outline' | 'secondary' | 'ghost' | 'destructive' | 'link'
+type ButtonSize = 'default' | 'xs' | 'sm' | 'lg' | 'icon' | 'icon-xs' | 'icon-sm' | 'icon-lg'
 
-const buttonVariants = cva(
-  "group/button inline-flex shrink-0 items-center justify-center rounded-lg border border-transparent bg-clip-padding text-sm font-medium whitespace-nowrap transition-all outline-none select-none focus-visible:border-ring focus-visible:ring-3 focus-visible:ring-ring/50 active:translate-y-px disabled:pointer-events-none disabled:opacity-50 aria-invalid:border-destructive aria-invalid:ring-3 aria-invalid:ring-destructive/20 dark:aria-invalid:border-destructive/50 dark:aria-invalid:ring-destructive/40 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
-  {
-    variants: {
-      variant: {
-        default: "bg-primary text-primary-foreground [a]:hover:bg-primary/80",
-        outline: "border-border bg-background hover:bg-muted hover:text-foreground aria-expanded:bg-muted aria-expanded:text-foreground dark:border-input dark:bg-input/30 dark:hover:bg-input/50",
-        secondary: "bg-secondary text-secondary-foreground hover:bg-secondary/80 aria-expanded:bg-secondary aria-expanded:text-secondary-foreground",
-        ghost: "hover:bg-muted hover:text-foreground aria-expanded:bg-muted aria-expanded:text-foreground dark:hover:bg-muted/50",
-        destructive: "bg-destructive/10 text-destructive hover:bg-destructive/20 focus-visible:border-destructive/40 focus-visible:ring-destructive/20 dark:bg-destructive/20 dark:hover:bg-destructive/30 dark:focus-visible:ring-destructive/40",
-        link: "text-primary underline-offset-4 hover:underline",
-      },
-      size: {
-        default: "h-8 gap-1.5 px-2.5 has-data-[icon=inline-end]:pr-2 has-data-[icon=inline-start]:pl-2",
-        xs: "h-6 gap-1 rounded-[min(var(--radius-md),10px)] px-2 text-xs",
-        sm: "h-7 gap-1 rounded-[min(var(--radius-md),12px)] px-2.5 text-[0.8rem]",
-        lg: "h-9 gap-1.5 px-2.5 has-data-[icon=inline-end]:pr-3 has-data-[icon=inline-start]:pl-3",
-        icon: "size-8",
-        "icon-xs": "size-6 rounded-[min(var(--radius-md),10px)]",
-        "icon-sm": "size-7 rounded-[min(var(--radius-md),12px)]",
-        "icon-lg": "size-9",
-      },
-    },
-    defaultVariants: {
-      variant: "default",
-      size: "default",
-    },
-  }
-)
+const variantMap: Record<ButtonVariant, { variant: string; color?: string }> = {
+  default: { variant: 'filled' },
+  outline: { variant: 'outline' },
+  secondary: { variant: 'light' },
+  ghost: { variant: 'subtle' },
+  destructive: { variant: 'filled', color: 'red' },
+  link: { variant: 'transparent' },
+}
+
+const sizeMap: Record<ButtonSize, { size: string; style?: React.CSSProperties }> = {
+  default: { size: 'sm' },
+  xs: { size: 'xs' },
+  sm: { size: 'xs' },
+  lg: { size: 'md' },
+  icon: { size: 'sm', style: { width: 32, height: 32, padding: 0 } },
+  'icon-xs': { size: 'xs', style: { width: 24, height: 24, padding: 0 } },
+  'icon-sm': { size: 'xs', style: { width: 28, height: 28, padding: 0 } },
+  'icon-lg': { size: 'md', style: { width: 36, height: 36, padding: 0 } },
+}
+
+/** Kept for backwards compatibility — maps variant names to Mantine equivalents */
+const buttonVariants = variantMap
+
+interface ButtonProps extends React.ComponentPropsWithoutRef<'button'> {
+  variant?: ButtonVariant
+  size?: ButtonSize
+  children?: React.ReactNode
+}
 
 function Button({
   className,
-  variant = "default",
-  size = "default",
+  variant = 'default',
+  size = 'default',
+  style,
+  children,
   ...props
-}: ButtonPrimitive.Props & VariantProps<typeof buttonVariants>) {
+}: ButtonProps) {
+  const mv = variantMap[variant]
+  const ms = sizeMap[size]
+
   return (
-    <ButtonPrimitive
+    <MantineButton
       data-slot="button"
-      className={cn(buttonVariants({ variant, size, className }))}
+      variant={mv.variant}
+      color={mv.color}
+      size={ms.size}
+      radius="md"
+      className={className}
+      style={{ ...ms.style, ...style }}
       {...props}
-    />
+    >
+      {children}
+    </MantineButton>
   )
 }
 
 export { Button, buttonVariants }
+export type { ButtonProps, ButtonVariant, ButtonSize }

frontend/functions/ui/card.md

@@ -8,7 +8,7 @@ purity: impure
 signature: "Card(props: { size?: 'default' | 'sm'; variant?: 'default' | 'borderless' | 'ghost'; className?: string; children: ReactNode }): JSX.Element"
 description: "Contenedor card con header, title, description, action, content y footer. Sistema de slots composable. Variantes default, borderless y ghost para dashboards dark."
 tags: [card, container, layout, component, ui, dashboard, dark]
-uses_functions: [cn_ts_core]
+uses_functions: []
 uses_types: []
 returns: []
 returns_optional: false

frontend/functions/ui/card.tsx

@@ -1,89 +1,99 @@
-import * as React from "react"
-import { cn } from "../core/cn"
+import * as React from 'react'
+import { Paper, Box, Text } from '@mantine/core'
 
-type CardVariant = "default" | "borderless" | "ghost"
+type CardVariant = 'default' | 'borderless' | 'ghost'
 
 function Card({
   className,
-  size = "default",
-  variant = "default",
+  size = 'default',
+  variant = 'default',
+  children,
   ...props
-}: React.ComponentProps<"div"> & { size?: "default" | "sm"; variant?: CardVariant }) {
+}: React.ComponentProps<'div'> & { size?: 'default' | 'sm'; variant?: CardVariant }) {
   return (
-    <div
+    <Paper
       data-slot="card"
       data-size={size}
       data-variant={variant}
-      className={cn(
-        "group/card flex flex-col gap-4 overflow-hidden rounded-xl bg-card py-4 text-sm text-card-foreground has-data-[slot=card-footer]:pb-0 has-[>img:first-child]:pt-0 data-[size=sm]:gap-3 data-[size=sm]:py-3 data-[size=sm]:has-data-[slot=card-footer]:pb-0 *:[img:first-child]:rounded-t-xl *:[img:last-child]:rounded-b-xl",
-        variant === "default" && "ring-1 ring-foreground/10",
-        variant === "borderless" && "ring-0 shadow-none",
-        variant === "ghost" && "ring-0 shadow-none bg-transparent",
-        className
-      )}
+      withBorder={variant === 'default'}
+      shadow={variant === 'default' ? 'xs' : undefined}
+      radius="md"
+      p={size === 'sm' ? 'sm' : 'md'}
+      bg={variant === 'ghost' ? 'transparent' : undefined}
+      className={className}
       {...props}
-    />
+    >
+      {children}
+    </Paper>
   )
 }
 
-function CardHeader({ className, ...props }: React.ComponentProps<"div">) {
+function CardHeader({ className, ...props }: React.ComponentProps<'div'>) {
   return (
-    <div
+    <Box
       data-slot="card-header"
-      className={cn(
-        "group/card-header @container/card-header grid auto-rows-min items-start gap-1 rounded-t-xl px-4 group-data-[size=sm]/card:px-3 has-data-[slot=card-action]:grid-cols-[1fr_auto] has-data-[slot=card-description]:grid-rows-[auto_auto] [.border-b]:pb-4 group-data-[size=sm]/card:[.border-b]:pb-3",
-        className
-      )}
+      pb="xs"
+      className={className}
       {...props}
     />
   )
 }
 
-function CardTitle({ className, ...props }: React.ComponentProps<"div">) {
+function CardTitle({ className, ...props }: React.ComponentProps<'div'>) {
   return (
-    <div
+    <Text
+      component="div"
       data-slot="card-title"
-      className={cn("text-base leading-snug font-medium group-data-[size=sm]/card:text-sm", className)}
+      fw={600}
+      size="sm"
+      className={className}
       {...props}
     />
   )
 }
 
-function CardDescription({ className, ...props }: React.ComponentProps<"div">) {
+function CardDescription({ className, ...props }: React.ComponentProps<'div'>) {
   return (
-    <div
+    <Text
+      component="div"
       data-slot="card-description"
-      className={cn("text-sm text-muted-foreground", className)}
+      size="sm"
+      c="dimmed"
+      className={className}
       {...props}
     />
   )
 }
 
-function CardAction({ className, ...props }: React.ComponentProps<"div">) {
+function CardAction({ className, style, ...props }: React.ComponentProps<'div'>) {
   return (
-    <div
+    <Box
       data-slot="card-action"
-      className={cn("col-start-2 row-span-2 row-start-1 self-start justify-self-end", className)}
+      style={{ position: 'absolute', top: 0, right: 0, ...style }}
+      className={className}
       {...props}
     />
   )
 }
 
-function CardContent({ className, ...props }: React.ComponentProps<"div">) {
+function CardContent({ className, ...props }: React.ComponentProps<'div'>) {
   return (
-    <div
+    <Box
       data-slot="card-content"
-      className={cn("px-4 group-data-[size=sm]/card:px-3", className)}
+      className={className}
       {...props}
     />
   )
 }
 
-function CardFooter({ className, ...props }: React.ComponentProps<"div">) {
+function CardFooter({ className, ...props }: React.ComponentProps<'div'>) {
   return (
-    <div
+    <Box
       data-slot="card-footer"
-      className={cn("flex items-center rounded-b-xl border-t bg-muted/50 p-4 group-data-[size=sm]/card:p-3", className)}
+      pt="sm"
+      mt="auto"
+      style={{ borderTop: '1px solid var(--mantine-color-default-border)' }}
+      className={className}
       {...props}
     />
   )

frontend/functions/ui/chart_container.md

@@ -6,15 +6,15 @@ domain: ui
 version: "1.0.0"
 purity: impure
 signature: "ChartContainer(props: { children: ReactNode; height?: number | string }): JSX.Element"
-description: "Base para todos los charts Recharts: container responsive, tooltip temático, legend y utilidades de colores por serie."
-tags: [chart, container, recharts, base, visualization, component, ui]
-uses_functions: [cn_ts_core, get_series_color_ts_core]
+description: "Thin wrapper Paper y utilidades de colores/series para los charts @mantine/charts."
+tags: [chart, container, mantine, base, visualization, component, ui]
+uses_functions: []
 uses_types: [ChartSeries_ts_ui]
 returns: []
 returns_optional: false
 error_type: ""
-imports: [recharts, react]
-output: "Componente ChartContainer que renderiza base responsive para gráficos Recharts con tooltip y legend temáticos"
+imports: ["@mantine/core"]
+output: "Componente ChartContainer Paper wrapper y utilidades getSeriesColor/Series para charts Mantine"
 tested: false
 tests: []
 test_file_path: ""
@@ -40,11 +40,13 @@ source_file: "frontend/src/components/ui/charts/chart-base.tsx"
 ## Ejemplo
 
 ```tsx
+import { ChartContainer, getSeriesColor, type Series } from './chart_container'
+
 <ChartContainer height={400}>
-  <RechartsLineChart data={data}>...</RechartsLineChart>
+  <MantineLineChart ... />
 </ChartContainer>
 ```
 
 ## Notas
 
-Exporta: ChartContainer, ChartTooltipContent, ChartTooltip, ChartLegend, chartColors, defaultColors, getSeriesColor, Series.
+Exporta: ChartContainer, defaultColors, getSeriesColor, Series. Wrapper fino sobre Mantine Paper para layout uniforme de charts.

frontend/functions/ui/chart_container.tsx

@@ -1,14 +1,4 @@
-import * as React from 'react'
-import { cn } from '../core/cn'
-import { ResponsiveContainer, Tooltip as RechartsTooltip, Legend as RechartsLegend } from 'recharts'
-
-export const chartColors = [
-  'hsl(var(--chart-1, 220 70% 50%))',
-  'hsl(var(--chart-2, 160 60% 45%))',
-  'hsl(var(--chart-3, 30 80% 55%))',
-  'hsl(var(--chart-4, 280 65% 60%))',
-  'hsl(var(--chart-5, 340 75% 55%))',
-]
+import { Paper } from '@mantine/core'
 
 export const defaultColors = ['#3b82f6', '#22c55e', '#f59e0b', '#8b5cf6', '#ec4899']
 
@@ -19,62 +9,25 @@ export interface Series {
 }
 
 export function getSeriesColor(index: number, color?: string): string {
-  return color || defaultColors[index % defaultColors.length]
+  return color || defaultColors[index % defaultColors.length]!
 }
 
 interface ChartContainerProps {
   children: React.ReactNode
-  className?: string
   height?: number | string
 }
 
-export function ChartContainer({ children, className, height = 300 }: ChartContainerProps) {
+export function ChartContainer({ children, height = 300 }: ChartContainerProps) {
   return (
-    <div
-      className={cn('w-full', className)}
-      style={{ height, minWidth: 100, minHeight: typeof height === 'number' ? Math.min(height, 100) : 100 }}
-    >
-      <ResponsiveContainer width="100%" height="100%">
-        {children as React.ReactElement}
-      </ResponsiveContainer>
-    </div>
+    <Paper p="md" style={{ height, minWidth: 100, minHeight: typeof height === 'number' ? Math.min(height, 100) : 100 }}>
+      {children}
+    </Paper>
   )
 }
 
-interface ChartTooltipContentProps {
-  active?: boolean
-  payload?: Array<{ name: string; value: number; color: string; dataKey: string }>
-  label?: string
-  labelFormatter?: (label: string) => string
-  valueFormatter?: (value: number) => string
-}
-
-export function ChartTooltipContent({
-  active, payload, label,
-  labelFormatter = (l) => l,
-  valueFormatter = (v) => v.toLocaleString(),
-}: ChartTooltipContentProps) {
-  if (!active || !payload?.length) return null
-  return (
-    <div className="rounded-lg border bg-background p-2 shadow-md">
-      <p className="mb-1 text-sm font-medium">{labelFormatter(label || '')}</p>
-      <div className="space-y-0.5">
-        {payload.map((entry, index) => (
-          <div key={index} className="flex items-center gap-2 text-sm">
-            <div className="size-2.5 rounded-full" style={{ backgroundColor: entry.color }} />
-            <span className="text-muted-foreground">{entry.name}:</span>
-            <span className="font-medium">{valueFormatter(entry.value)}</span>
-          </div>
-        ))}
-      </div>
-    </div>
-  )
-}
-
-export function ChartTooltip(props: React.ComponentProps<typeof RechartsTooltip>) {
-  return <RechartsTooltip content={<ChartTooltipContent />} cursor={{ fill: 'hsl(var(--muted) / 0.3)' }} {...props} />
-}
-
-export function ChartLegend(props: React.ComponentProps<typeof RechartsLegend>) {
-  return <RechartsLegend wrapperStyle={{ paddingTop: 16 }} {...props} />
-}
+/** @deprecated Mantine charts handle tooltips internally. Kept for index.ts compat. */
+export function ChartTooltipContent() { return null }
+/** @deprecated Mantine charts handle tooltips internally. Kept for index.ts compat. */
+export function ChartTooltip() { return null }
+/** @deprecated Mantine charts handle legends internally. Kept for index.ts compat. */
+export function ChartLegend() { return null }

frontend/functions/ui/checkbox.md

@@ -6,14 +6,14 @@ domain: ui
 version: "1.0.0"
 purity: impure
 signature: "Checkbox(props: CheckboxProps): JSX.Element"
-description: "Input booleano accesible con label opcional y variante indeterminate. Base-UI Checkbox primitive."
-tags: [checkbox, component, ui, interactive, form, base-ui]
-uses_functions: [cn_ts_core]
+description: "Input booleano accesible con label opcional y variante indeterminate. Mantine Checkbox."
+tags: [checkbox, component, ui, interactive, form, mantine]
+uses_functions: []
 uses_types: []
 returns: []
 returns_optional: false
 error_type: ""
-imports: ["@base-ui/react/checkbox", "class-variance-authority"]
+imports: ["@mantine/core"]
 output: "Componente Checkbox que renderiza input booleano accesible con label opcional y estado indeterminate"
 tested: false
 tests: []
@@ -70,4 +70,4 @@ variant: []
 
 ## Notas
 
-Usa Base-UI Checkbox primitive para accesibilidad completa (keyboard, ARIA). El estado indeterminate se muestra con un guion horizontal. El id se genera automaticamente con useId si no se provee.
+Usa Mantine Checkbox para accesibilidad completa (keyboard, ARIA). El estado indeterminate se muestra con un guion horizontal. El callback onCheckedChange se adapta desde el onChange nativo de Mantine.

frontend/functions/ui/checkbox.tsx

@@ -1,76 +1,32 @@
-import * as React from "react"
-import { Checkbox as CheckboxPrimitive } from "@base-ui/react/checkbox"
-import { cn } from "../core/cn"
+import { Checkbox as MantineCheckbox } from "@mantine/core"
 
-interface CheckboxProps extends CheckboxPrimitive.Root.Props {
+interface CheckboxProps {
   label?: string
   indeterminate?: boolean
   className?: string
   labelClassName?: string
+  checked?: boolean
+  defaultChecked?: boolean
+  disabled?: boolean
+  onCheckedChange?: (checked: boolean) => void
+  id?: string
 }
 
-function Checkbox({ className, label, id, indeterminate, ...props }: CheckboxProps) {
-  const internalId = React.useId()
-  const checkboxId = id ?? internalId
-
+function Checkbox({ className, label, id, indeterminate, checked, defaultChecked, disabled, onCheckedChange, ...props }: CheckboxProps) {
   return (
-    <div className="flex items-center gap-2">
-      <CheckboxPrimitive.Root
-        id={checkboxId}
-        data-slot="checkbox"
-        className={cn(
-          "peer size-4 shrink-0 rounded border border-input bg-transparent transition-colors outline-none",
-          "focus-visible:border-ring focus-visible:ring-3 focus-visible:ring-ring/50",
-          "data-checked:border-primary data-checked:bg-primary data-checked:text-primary-foreground",
-          "data-indeterminate:border-primary data-indeterminate:bg-primary data-indeterminate:text-primary-foreground",
-          "disabled:pointer-events-none disabled:opacity-50",
-          className
-        )}
-        indeterminate={indeterminate}
-        {...props}
-      >
-        <CheckboxPrimitive.Indicator
-          data-slot="checkbox-indicator"
-          className="flex items-center justify-center text-current"
-        >
-          {indeterminate ? (
-            <svg
-              xmlns="http://www.w3.org/2000/svg"
-              viewBox="0 0 24 24"
-              fill="none"
-              stroke="currentColor"
-              strokeWidth="3"
-              strokeLinecap="round"
-              className="size-3"
-            >
-              <line x1="5" y1="12" x2="19" y2="12" />
-            </svg>
-          ) : (
-            <svg
-              xmlns="http://www.w3.org/2000/svg"
-              viewBox="0 0 24 24"
-              fill="none"
-              stroke="currentColor"
-              strokeWidth="3"
-              strokeLinecap="round"
-              strokeLinejoin="round"
-              className="size-3"
-            >
-              <polyline points="20 6 9 17 4 12" />
-            </svg>
-          )}
-        </CheckboxPrimitive.Indicator>
-      </CheckboxPrimitive.Root>
-      {label && (
-        <label
-          htmlFor={checkboxId}
-          data-slot="checkbox-label"
-          className="text-sm font-medium leading-none peer-disabled:cursor-not-allowed peer-disabled:opacity-50 cursor-pointer select-none"
-        >
-          {label}
-        </label>
-      )}
-    </div>
+    <MantineCheckbox
+      id={id}
+      data-slot="checkbox"
+      label={label}
+      indeterminate={indeterminate}
+      checked={checked}
+      defaultChecked={defaultChecked}
+      disabled={disabled}
+      onChange={(event) => onCheckedChange?.(event.currentTarget.checked)}
+      className={className}
+      size="sm"
+      {...props}
+    />
   )
 }
 

frontend/functions/ui/chip.md

@@ -0,0 +1,88 @@
+---
+name: chip
+kind: component
+lang: ts
+domain: ui
+version: "1.0.0"
+purity: impure
+signature: "Chip(props: ChipProps): JSX.Element"
+description: "Chip seleccionable con variantes filled/outline/light. ChipGroup para selección simple o múltiple. Wrapper sobre Mantine Chip."
+tags: [chip, toggle, selection, component, ui, mantine]
+uses_functions: []
+uses_types: []
+returns: []
+returns_optional: false
+error_type: ""
+imports: ["@mantine/core"]
+output: "Componente Chip que renderiza un elemento seleccionable tipo badge, con ChipGroup para gestionar selección simple o múltiple entre varios chips"
+tested: false
+tests: []
+test_file_path: ""
+file_path: "frontend/functions/ui/chip.tsx"
+props:
+  - name: checked
+    type: "boolean"
+    required: false
+    description: "Estado seleccionado del chip (controlled)"
+  - name: onChange
+    type: "(checked: boolean) => void"
+    required: false
+    description: "Callback al cambiar el estado del chip"
+  - name: variant
+    type: "'filled' | 'outline' | 'light'"
+    required: false
+    description: "Estilo visual del chip"
+  - name: color
+    type: "string"
+    required: false
+    description: "Color del chip cuando está seleccionado"
+  - name: size
+    type: "'xs' | 'sm' | 'md' | 'lg' | 'xl'"
+    required: false
+    description: "Tamaño del chip"
+  - name: children
+    type: "React.ReactNode"
+    required: true
+    description: "Contenido del chip — texto o elemento"
+emits: [onChange]
+has_state: true
+framework: react
+variant: [filled, outline, light]
+---
+
+## Ejemplo
+
+```tsx
+import { Chip, ChipGroup } from '@fn_library'
+
+// Chip individual controlado
+<Chip checked={active} onChange={setActive}>
+  Activo
+</Chip>
+
+// ChipGroup selección simple (una sola opción)
+<ChipGroup value={selected} onChange={setSelected}>
+  <Chip value="react">React</Chip>
+  <Chip value="vue">Vue</Chip>
+  <Chip value="svelte">Svelte</Chip>
+</ChipGroup>
+
+// ChipGroup selección múltiple
+<ChipGroup multiple value={tags} onChange={setTags}>
+  <Chip value="frontend">Frontend</Chip>
+  <Chip value="backend">Backend</Chip>
+  <Chip value="devops">DevOps</Chip>
+</ChipGroup>
+
+// Con variante y color custom
+<Chip variant="outline" color="teal" size="lg">
+  Destacado
+</Chip>
+```
+
+## Notas
+
+- Wrapper directo sobre `Chip` de `@mantine/core` v9. Todas las props de Mantine Chip son válidas.
+- `ChipGroup` es un alias de `MantineChip.Group` — gestiona el estado de selección entre chips hijos.
+- En `ChipGroup` sin `multiple`, `value` es `string`. Con `multiple`, `value` es `string[]`.
+- Internamente cada `Chip` renderiza un checkbox/radio accesible oculto con label visual.

frontend/functions/ui/chip.tsx

@@ -0,0 +1,12 @@
+import { Chip as MantineChip, type ChipProps as MantineChipProps } from '@mantine/core'
+
+interface ChipProps extends MantineChipProps {}
+
+function Chip(props: ChipProps) {
+  return <MantineChip {...props} />
+}
+
+const ChipGroup = MantineChip.Group
+
+export { Chip, ChipGroup }
+export type { ChipProps }

frontend/functions/ui/color_input.md

@@ -0,0 +1,104 @@
+---
+name: color_input
+kind: component
+lang: ts
+domain: ui
+version: "1.0.0"
+purity: impure
+signature: "ColorInput(props: ColorInputProps): JSX.Element"
+description: "Selector de color con picker, swatches predefinidos y eye dropper. Soporta hex, rgb, hsl con alpha. Wrapper sobre Mantine ColorInput."
+tags: [color, picker, input, form, component, ui, interactive, mantine]
+uses_functions: []
+uses_types: []
+returns: []
+returns_optional: false
+error_type: ""
+imports: ["@mantine/core"]
+tested: false
+tests: []
+test_file_path: ""
+file_path: "frontend/functions/ui/color_input.tsx"
+framework: react
+has_state: true
+props:
+  - name: format
+    type: "\"hex\" | \"hexa\" | \"rgb\" | \"rgba\" | \"hsl\" | \"hsla\""
+    required: false
+    description: "Formato de color a usar en el valor. Por defecto hex."
+  - name: swatches
+    type: "string[]"
+    required: false
+    description: "Lista de colores predefinidos mostrados como swatches en el picker."
+  - name: withEyeDropper
+    type: "boolean"
+    required: false
+    description: "Muestra el boton eye dropper para seleccionar color de la pantalla."
+  - name: withPicker
+    type: "boolean"
+    required: false
+    description: "Muestra el color picker interactivo. Por defecto true."
+  - name: value
+    type: "string"
+    required: false
+    description: "Valor controlado del color en el formato especificado."
+  - name: onChange
+    type: "(value: string) => void"
+    required: false
+    description: "Callback invocado cuando el color cambia."
+  - name: label
+    type: "React.ReactNode"
+    required: false
+    description: "Etiqueta del campo."
+  - name: placeholder
+    type: "string"
+    required: false
+    description: "Placeholder del input de texto."
+  - name: disabled
+    type: "boolean"
+    required: false
+    description: "Deshabilita el input."
+  - name: size
+    type: "\"xs\" | \"sm\" | \"md\" | \"lg\" | \"xl\""
+    required: false
+    description: "Tamanio del componente."
+emits: [onChange, onChangeEnd]
+output: "Componente ColorInput que renderiza input de color con picker desplegable y swatches"
+params: []
+---
+
+## Ejemplo
+
+```tsx
+import { ColorInput } from '@fn_library/color_input'
+
+// Basico con hex (default)
+<ColorInput
+  label="Color primario"
+  placeholder="#228be6"
+/>
+
+// Con swatches predefinidos
+<ColorInput
+  label="Color de marca"
+  swatches={['#2e2e2e', '#868e96', '#fa5252', '#e64980', '#be4bdb', '#228be6', '#15aabf', '#12b886', '#40c057', '#82c91e', '#fab005', '#fd7e14']}
+  swatchesPerRow={7}
+  placeholder="Elige un color"
+/>
+
+// Con rgba y eye dropper
+<ColorInput
+  label="Color con transparencia"
+  format="rgba"
+  withEyeDropper
+  value="rgba(34, 139, 230, 0.5)"
+  onChange={(value) => console.log(value)}
+/>
+```
+
+## Notas
+
+Wrapper directo sobre `ColorInput` de Mantine v9. Hereda todas las props de Mantine sin restricciones.
+
+El eye dropper (`withEyeDropper`) solo funciona en browsers que soporten la EyeDropper API (Chrome/Edge). En Firefox no aparece el boton automaticamente.
+
+Cuando `format` es `hex` o `hsl`, el valor no incluye canal alpha. Para transparencia usar `hexa`, `rgba` o `hsla`.

frontend/functions/ui/color_input.tsx

@@ -0,0 +1,10 @@
+import { ColorInput as MantineColorInput, type ColorInputProps as MantineColorInputProps } from '@mantine/core'
+
+interface ColorInputProps extends MantineColorInputProps {}
+
+function ColorInput(props: ColorInputProps) {
+  return <MantineColorInput {...props} />
+}
+
+export { ColorInput }
+export type { ColorInputProps }

frontend/functions/ui/command.md

@@ -8,12 +8,12 @@ purity: impure
 signature: "Command(props: CommandProps): JSX.Element"
 description: "Combobox de busqueda y seleccion estilo cmdk. Filtra items por query, soporta grupos, iconos y shortcuts. Incluye CommandSearch para uso de una linea."
 tags: [command, search, combobox, component, ui, interactive]
-uses_functions: [cn_ts_core]
+uses_functions: []
 uses_types: []
 returns: []
 returns_optional: false
 error_type: ""
-imports: ["lucide-react"]
+imports: ["@mantine/core", "@tabler/icons-react"]
 output: "Componente Command que renderiza combobox de búsqueda y selección con filtrado reactivo, grupos e iconos"
 tested: false
 tests: []

frontend/functions/ui/command.tsx

@@ -1,8 +1,8 @@
-import * as React from "react"
-import { SearchIcon, XIcon } from "lucide-react"
-import { cn } from "../core/cn"
+import * as React from 'react'
+import { TextInput, Text, Box, ScrollArea } from '@mantine/core'
+import { IconSearch } from '@tabler/icons-react'
 
-interface CommandItem {
+interface CommandItemData {
   value: string
   label: string
   description?: string
@@ -12,7 +12,7 @@ interface CommandItem {
 }
 
 interface CommandProps {
-  items: CommandItem[]
+  items: CommandItemData[]
   value?: string
   onValueChange?: (value: string) => void
   placeholder?: string
@@ -22,122 +22,107 @@ interface CommandProps {
   listClassName?: string
 }
 
-function Command({ className, ...props }: React.ComponentPropsWithoutRef<"div">) {
+function Command({ className, children, ...props }: React.ComponentPropsWithoutRef<'div'>) {
+  return <Box data-slot="command" className={className} {...props}>{children}</Box>
+}
+
+function CommandInput({ className, value, onChange, placeholder, ...props }: {
+  className?: string
+  value?: string
+  onChange?: (e: React.ChangeEvent<HTMLInputElement>) => void
+  placeholder?: string
+}) {
   return (
-    <div
-      data-slot="command"
-      className={cn("flex h-full w-full flex-col overflow-hidden rounded-xl bg-popover text-popover-foreground", className)}
+    <TextInput
+      data-slot="command-input"
+      leftSection={<IconSearch size={16} />}
+      className={className}
+      value={value}
+      onChange={onChange}
+      placeholder={placeholder}
+      styles={{ input: { border: 'none', borderBottom: '1px solid var(--mantine-color-default-border)' } }}
       {...props}
     />
   )
 }
 
-function CommandInput({ className, ...props }: React.ComponentPropsWithoutRef<"input">) {
+function CommandList({ className, children }: { className?: string; children?: React.ReactNode }) {
   return (
-    <div data-slot="command-input-wrapper" className="flex items-center border-b px-3">
-      <SearchIcon className="mr-2 size-4 shrink-0 text-muted-foreground" />
-      <input
-        data-slot="command-input"
-        className={cn(
-          "flex h-10 w-full rounded-md bg-transparent py-3 text-sm outline-none",
-          "placeholder:text-muted-foreground",
-          "disabled:cursor-not-allowed disabled:opacity-50",
-          className
-        )}
-        {...props}
-      />
-    </div>
+    <ScrollArea.Autosize mah={300} data-slot="command-list" className={className}>
+      {children}
+    </ScrollArea.Autosize>
   )
 }
 
-function CommandList({ className, ...props }: React.ComponentPropsWithoutRef<"div">) {
+function CommandEmpty({ className, children }: { className?: string; children?: React.ReactNode }) {
   return (
-    <div
-      data-slot="command-list"
-      className={cn("max-h-[300px] scroll-py-1 overflow-x-hidden overflow-y-auto", className)}
-      {...props}
-    />
+    <Text ta="center" c="dimmed" size="sm" py="xl" data-slot="command-empty" className={className}>
+      {children}
+    </Text>
   )
 }
 
-function CommandEmpty({ className, ...props }: React.ComponentPropsWithoutRef<"div">) {
+function CommandGroup({ className, heading, children }: { className?: string; heading?: string; children?: React.ReactNode }) {
   return (
-    <div
-      data-slot="command-empty"
-      className={cn("py-6 text-center text-sm text-muted-foreground", className)}
-      {...props}
-    />
+    <Box data-slot="command-group" p={4} className={className}>
+      {heading && <Text size="xs" fw={500} c="dimmed" px="sm" py={6}>{heading}</Text>}
+      <div>{children}</div>
+    </Box>
   )
 }
 
-function CommandGroup({ className, heading, ...props }: React.ComponentPropsWithoutRef<"div"> & { heading?: string }) {
-  return (
-    <div data-slot="command-group" className={cn("overflow-hidden p-1 text-foreground", className)}>
-      {heading && (
-        <div className="px-2 py-1.5 text-xs font-medium text-muted-foreground">{heading}</div>
-      )}
-      <div {...props} />
-    </div>
-  )
+function CommandSeparator({ className }: { className?: string }) {
+  return <Box data-slot="command-separator" h={1} bg="var(--mantine-color-default-border)" mx={-4} className={className} />
 }
 
-function CommandSeparator({ className, ...props }: React.ComponentPropsWithoutRef<"div">) {
-  return (
-    <div
-      data-slot="command-separator"
-      className={cn("-mx-1 h-px bg-border", className)}
-      {...props}
-    />
-  )
-}
-
-interface CommandItemProps extends React.ComponentPropsWithoutRef<"div"> {
+function CommandItem({ className, selected, disabled, onSelect, children }: {
+  className?: string
   selected?: boolean
   disabled?: boolean
   onSelect?: () => void
-}
-
-function CommandItem({ className, selected, disabled, onSelect, ...props }: CommandItemProps) {
+  children?: React.ReactNode
+}) {
   return (
-    <div
+    <Box
       data-slot="command-item"
       data-selected={selected}
       aria-disabled={disabled}
       role="option"
       aria-selected={selected}
       onClick={!disabled ? onSelect : undefined}
-      className={cn(
-        "relative flex cursor-default select-none items-center gap-2 rounded-md px-2 py-1.5 text-sm outline-none",
-        "data-[selected=true]:bg-accent data-[selected=true]:text-accent-foreground",
-        "hover:bg-accent hover:text-accent-foreground",
-        disabled && "pointer-events-none opacity-50",
-        className
-      )}
-      {...props}
-    />
+      px="sm"
+      py={6}
+      style={{
+        display: 'flex',
+        alignItems: 'center',
+        gap: 8,
+        borderRadius: 'var(--mantine-radius-sm)',
+        cursor: disabled ? 'not-allowed' : 'pointer',
+        opacity: disabled ? 0.5 : 1,
+        backgroundColor: selected ? 'var(--mantine-color-default-hover)' : undefined,
+        fontSize: 'var(--mantine-font-size-sm)',
+      }}
+      className={className}
+    >
+      {children}
+    </Box>
   )
 }
 
-function CommandShortcut({ className, ...props }: React.ComponentPropsWithoutRef<"span">) {
-  return (
-    <span
-      data-slot="command-shortcut"
-      className={cn("ml-auto text-xs tracking-widest text-muted-foreground", className)}
-      {...props}
-    />
-  )
+function CommandShortcut({ className, children }: { className?: string; children?: React.ReactNode }) {
+  return <Text span size="xs" c="dimmed" ml="auto" className={className}>{children}</Text>
 }
 
 function CommandSearch({
   items,
   value,
   onValueChange,
-  placeholder = "Search...",
-  emptyMessage = "No results found.",
+  placeholder = 'Search...',
+  emptyMessage = 'No results found.',
   className,
 }: CommandProps) {
-  const [query, setQuery] = React.useState("")
-  const [selectedValue, setSelectedValue] = React.useState(value ?? "")
+  const [query, setQuery] = React.useState('')
+  const [selectedValue, setSelectedValue] = React.useState(value ?? '')
 
   const filtered = React.useMemo(() => {
     if (!query) return items
@@ -151,9 +136,9 @@ function CommandSearch({
   }, [items, query])
 
   const groups = React.useMemo(() => {
-    const map = new Map<string, CommandItem[]>()
+    const map = new Map<string, CommandItemData[]>()
     for (const item of filtered) {
-      const key = item.group ?? ""
+      const key = item.group ?? ''
       if (!map.has(key)) map.set(key, [])
       map.get(key)!.push(item)
     }
@@ -185,10 +170,10 @@ function CommandSearch({
                   disabled={item.disabled}
                   onSelect={() => handleSelect(item.value)}
                 >
-                  {item.icon && <span className="shrink-0">{item.icon}</span>}
+                  {item.icon && <span>{item.icon}</span>}
                   <span>{item.label}</span>
                   {item.description && (
-                    <span className="ml-auto text-xs text-muted-foreground">{item.description}</span>
+                    <Text span size="xs" c="dimmed" ml="auto">{item.description}</Text>
                   )}
                 </CommandItem>
               ))}
@@ -201,4 +186,4 @@ function CommandSearch({
 }
 
 export { Command, CommandEmpty, CommandGroup, CommandInput, CommandItem, CommandList, CommandSearch, CommandSeparator, CommandShortcut }
-export type { CommandItem, CommandProps }
+export type { CommandItemData, CommandProps }

frontend/functions/ui/crud_page.md

@@ -8,12 +8,12 @@ purity: pure
 signature: "crudPage<T>(props: CrudPageProps<T>): ReactElement"
 description: "Genera una página CRUD completa con header, tabla con columnas configurables, botones de acción (add/edit/delete) y schema de formulario."
 tags: [crud, page, table, form, factory, composition, ui]
-uses_functions: [cn_ts_core]
+uses_functions: []
 uses_types: []
 returns: []
 returns_optional: false
 error_type: ""
-imports: [react]
+imports: [react, "@mantine/core", "@tabler/icons-react"]
 params:
   - name: props
     desc: "Configuración CRUD: título, datos, columnas de tabla, campos de formulario y callbacks para add/edit/delete"

frontend/functions/ui/crud_page.tsx

@@ -1,5 +1,6 @@
 import * as React from 'react'
-import { cn } from '../core/cn'
+import { Stack, Group, Title, Text, Paper, Table, Button, ActionIcon, Center } from '@mantine/core'
+import { IconPlus, IconPencil, IconTrash } from '@tabler/icons-react'
 
 interface CrudField {
   key: string
@@ -37,83 +38,83 @@ export function crudPage<T extends Record<string, unknown>>({
   onEdit,
   onDelete,
   actions,
-  className,
 }: CrudPageProps<T>): React.ReactElement {
   return (
-    <div className={cn('space-y-6', className)}>
+    <Stack gap="lg">
       {/* Header */}
-      <div className="flex items-center justify-between border-b pb-4">
-        <div className="space-y-1">
-          <h1 className="text-2xl font-semibold tracking-tight">{title}</h1>
-          {subtitle && <p className="text-sm text-muted-foreground">{subtitle}</p>}
-        </div>
-        <div className="flex items-center gap-2">
+      <Group justify="space-between" pb="md" style={{ borderBottom: '1px solid var(--mantine-color-default-border)' }}>
+        <Stack gap={4}>
+          <Title order={2}>{title}</Title>
+          {subtitle && <Text size="sm" c="dimmed">{subtitle}</Text>}
+        </Stack>
+        <Group gap="xs">
           {actions}
           {onAdd && (
-            <button className="inline-flex h-8 items-center gap-1.5 rounded-lg bg-primary px-2.5 text-sm font-medium text-primary-foreground hover:bg-primary/80">
-              <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2"><path d="M12 5v14M5 12h14"/></svg>
+            <Button size="xs" leftSection={<IconPlus size={16} />}>
               Add {title.replace(/s$/, '')}
-            </button>
+            </Button>
           )}
-        </div>
-      </div>
+        </Group>
+      </Group>
 
       {/* Table */}
-      <div className="rounded-lg border">
-        <table className="w-full caption-bottom text-sm">
-          <thead className="border-b bg-muted/50">
-            <tr>
+      <Paper withBorder radius="md">
+        <Table highlightOnHover>
+          <Table.Thead>
+            <Table.Tr>
               {columns.map((col) => (
-                <th key={String(col.key)} className="px-4 py-3 text-left text-sm font-medium text-muted-foreground">
+                <Table.Th key={String(col.key)} fz="sm" fw={500} c="dimmed" px="md" py="sm">
                   {col.label}
-                </th>
+                </Table.Th>
               ))}
               {(onEdit || onDelete) && (
-                <th className="px-4 py-3 text-right text-sm font-medium text-muted-foreground">Actions</th>
+                <Table.Th ta="right" fz="sm" fw={500} c="dimmed" px="md" py="sm">Actions</Table.Th>
               )}
-            </tr>
-          </thead>
-          <tbody className="divide-y">
+            </Table.Tr>
+          </Table.Thead>
+          <Table.Tbody>
             {data.length === 0 ? (
-              <tr>
-                <td colSpan={columns.length + (onEdit || onDelete ? 1 : 0)} className="h-24 text-center text-muted-foreground">
-                  No items yet.
-                </td>
-              </tr>
+              <Table.Tr>
+                <Table.Td colSpan={columns.length + (onEdit || onDelete ? 1 : 0)}>
+                  <Center h={96}>
+                    <Text c="dimmed">No items yet.</Text>
+                  </Center>
+                </Table.Td>
+              </Table.Tr>
             ) : (
               data.map((row, i) => (
-                <tr key={i} className="hover:bg-muted/50">
+                <Table.Tr key={i}>
                   {columns.map((col) => (
-                    <td key={String(col.key)} className="px-4 py-3 align-middle">
+                    <Table.Td key={String(col.key)} px="md" py="sm" style={{ verticalAlign: 'middle' }}>
                       {col.render ? col.render(row[col.key], row) : String(row[col.key] ?? '')}
-                    </td>
+                    </Table.Td>
                   ))}
                   {(onEdit || onDelete) && (
-                    <td className="px-4 py-3 text-right">
-                      <div className="flex justify-end gap-1">
+                    <Table.Td px="md" py="sm" ta="right">
+                      <Group gap={4} justify="flex-end">
                         {onEdit && (
-                          <button onClick={() => onEdit(row)} className="inline-flex size-7 items-center justify-center rounded-md hover:bg-muted">
-                            <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2"><path d="M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7"/><path d="M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z"/></svg>
-                          </button>
+                          <ActionIcon variant="subtle" size="sm" onClick={() => onEdit(row)}>
+                            <IconPencil size={14} />
+                          </ActionIcon>
                         )}
                         {onDelete && (
-                          <button onClick={() => onDelete(row)} className="inline-flex size-7 items-center justify-center rounded-md text-destructive hover:bg-destructive/10">
-                            <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2"><path d="M3 6h18M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6m3 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"/></svg>
-                          </button>
+                          <ActionIcon variant="subtle" color="red" size="sm" onClick={() => onDelete(row)}>
+                            <IconTrash size={14} />
+                          </ActionIcon>
                         )}
-                      </div>
-                    </td>
+                      </Group>
+                    </Table.Td>
                   )}
-                </tr>
+                </Table.Tr>
               ))
             )}
-          </tbody>
-        </table>
-      </div>
+          </Table.Tbody>
+        </Table>
+      </Paper>
 
-      {/* Form fields definition (for agent use — renders a form preview) */}
-      <div className="hidden" data-slot="crud-form-schema" data-fields={JSON.stringify(fields)} />
-    </div>
+      {/* Form fields definition (for agent use) */}
+      <div style={{ display: 'none' }} data-slot="crud-form-schema" data-fields={JSON.stringify(fields)} />
+    </Stack>
   )
 }
 

frontend/functions/ui/dashboard_layout.md

@@ -8,12 +8,12 @@ purity: pure
 signature: "dashboardLayout(props: DashboardLayoutProps): ReactElement"
 description: "Genera un grid responsive de dashboard a partir de un array de widgets con span configurable. 1-4 columnas con auto-responsive."
 tags: [dashboard, layout, grid, factory, composition, ui]
-uses_functions: [cn_ts_core]
+uses_functions: []
 uses_types: []
 returns: []
 returns_optional: false
 error_type: ""
-imports: [react]
+imports: [react, "@mantine/core"]
 params:
   - name: props
     desc: "Configuración de layout: número de columnas y array de widgets con id, título, contenido y span"

frontend/functions/ui/dashboard_layout.tsx

@@ -1,5 +1,5 @@
 import * as React from 'react'
-import { cn } from '../core/cn'
+import { SimpleGrid, Paper, Text } from '@mantine/core'
 
 interface DashboardWidget {
   id: string
@@ -16,51 +16,37 @@ interface DashboardLayoutProps {
   className?: string
 }
 
-const gapClasses = { sm: 'gap-2', md: 'gap-4', lg: 'gap-6' }
-
-const spanClasses: Record<number, string> = {
-  1: 'col-span-1',
-  2: 'col-span-1 md:col-span-2',
-  3: 'col-span-1 md:col-span-2 lg:col-span-3',
-  4: 'col-span-1 md:col-span-2 lg:col-span-4',
-}
-
-const rowSpanClasses: Record<number, string> = {
-  1: 'row-span-1',
-  2: 'row-span-2',
-}
+const gapMap = { sm: 'xs', md: 'md', lg: 'lg' } as const
 
 export function dashboardLayout({
   widgets,
   columns = 4,
   gap = 'md',
-  className,
 }: DashboardLayoutProps): React.ReactElement {
-  const gridCols: Record<number, string> = {
-    1: 'grid-cols-1',
-    2: 'grid-cols-1 md:grid-cols-2',
-    3: 'grid-cols-1 md:grid-cols-2 lg:grid-cols-3',
-    4: 'grid-cols-1 md:grid-cols-2 lg:grid-cols-4',
-  }
-
   return (
-    <div className={cn('grid', gridCols[columns], gapClasses[gap], className)}>
+    <SimpleGrid
+      cols={{ base: 1, md: Math.min(columns, 2), lg: columns }}
+      spacing={gapMap[gap]}
+    >
       {widgets.map((widget) => (
-        <div
+        <Paper
           key={widget.id}
-          className={cn(
-            'rounded-xl border bg-card p-4 text-card-foreground shadow-sm',
-            spanClasses[widget.span || 1],
-            rowSpanClasses[widget.rowSpan || 1]
-          )}
+          p="md"
+          withBorder
+          shadow="xs"
+          radius="md"
+          style={{
+            gridColumn: widget.span && widget.span > 1 ? `span ${widget.span}` : undefined,
+            gridRow: widget.rowSpan === 2 ? 'span 2' : undefined,
+          }}
         >
           {widget.title && (
-            <h3 className="mb-3 text-sm font-medium text-muted-foreground">{widget.title}</h3>
+            <Text size="sm" fw={500} c="dimmed" mb="sm">{widget.title}</Text>
           )}
           {widget.content}
-        </div>
+        </Paper>
       ))}
-    </div>
+    </SimpleGrid>
   )
 }
 

frontend/functions/ui/data_table.md

@@ -8,12 +8,12 @@ purity: impure
 signature: "DataTable(props: DataTableProps): JSX.Element"
 description: "Tabla de datos con sticky header, overflow scroll, heatmap por columna, formato condicional (number/datetime/currency) y hover rows. Auto-detecta columnas desde la primera fila si no se proveen."
 tags: [table, data, heatmap, dashboard, component, ui, format, visualization]
-uses_functions: [cn_ts_core]
+uses_functions: []
 uses_types: []
 returns: []
 returns_optional: false
 error_type: ""
-imports: [react]
+imports: [react, "@mantine/core"]
 output: "Componente DataTable que renderiza tabla con sticky header, heatmap condicional y formato automático de datos"
 tested: false
 tests: []
@@ -44,10 +44,6 @@ props:
     type: "Error | null"
     required: false
     description: "Error a mostrar si la carga falló."
-  - name: className
-    type: "string"
-    required: false
-    description: "Clases CSS adicionales."
 emits: []
 has_state: false
 framework: react

frontend/functions/ui/data_table.tsx

@@ -1,5 +1,5 @@
 import * as React from 'react'
-import { cn } from '../core/cn'
+import { Table, Text, Center, Loader } from '@mantine/core'
 
 interface ColumnDef {
   key: string
@@ -16,7 +16,6 @@ interface DataTableProps {
   /** Column keys that should be colored by value intensity (heatmap). */
   heatmapColumns?: string[]
   maxHeight?: number | string
-  className?: string
   loading?: boolean
   error?: Error | null
 }
@@ -33,7 +32,7 @@ function formatCell(value: unknown, format?: string): string {
   if (!isNaN(num)) {
     if (format.includes('f')) {
       const match = format.match(/\.(\d+)f/)
-      const d = match ? parseInt(match[1]) : 0
+      const d = match ? parseInt(match[1]!) : 0
       let str = num.toFixed(d)
       if (format.includes(',')) {
         str = Number(str).toLocaleString('en-US', { minimumFractionDigits: d, maximumFractionDigits: d })
@@ -51,7 +50,6 @@ function DataTableComponent({
   columns,
   heatmapColumns = [],
   maxHeight = 500,
-  className,
   loading = false,
   error = null,
 }: DataTableProps) {
@@ -59,7 +57,7 @@ function DataTableComponent({
   const effectiveColumns: ColumnDef[] = (columns && columns.length > 0)
     ? columns
     : (data && data.length > 0)
-      ? Object.keys(data[0]).map(k => ({ key: k, label: k }))
+      ? Object.keys(data[0]!).map(k => ({ key: k, label: k }))
       : []
 
   // Compute heatmap ranges per column
@@ -82,73 +80,74 @@ function DataTableComponent({
     const num = Number(value)
     if (isNaN(num)) return undefined
     const t = (num - range.min) / (range.max - range.min)
-    // Dark blue (low) → bright blue (high)
     const alpha = 0.1 + t * 0.55
     return { backgroundColor: `rgba(59, 130, 246, ${alpha})` }
   }
 
-  const maxHeightStyle = typeof maxHeight === 'number' ? `${maxHeight}px` : maxHeight
-
   if (loading && (!data || data.length === 0)) {
     return (
-      <div className={cn('flex items-center justify-center text-muted-foreground text-sm', className)}
-        style={{ height: 200 }}>
-        Loading...
-      </div>
+      <Center h={200}>
+        <Loader size="sm" />
+      </Center>
     )
   }
 
   if (error) {
     return (
-      <div className={cn('flex items-center justify-center text-destructive text-sm', className)}
-        style={{ height: 200 }}>
-        {error.message}
-      </div>
+      <Center h={200}>
+        <Text size="sm" c="red">{error.message}</Text>
+      </Center>
     )
   }
 
   return (
-    <div className={cn('overflow-auto', className)} style={{ maxHeight: maxHeightStyle }}>
-      <table className="w-full text-sm">
-        <thead className="sticky top-0 bg-card z-10">
-          <tr className="border-b border-border">
+    <Table.ScrollContainer minWidth={0} mah={maxHeight} type="scrollarea">
+      <Table striped={false} highlightOnHover withTableBorder={false} withColumnBorders={false}>
+        <Table.Thead style={{ position: 'sticky', top: 0, zIndex: 10, backgroundColor: 'var(--mantine-color-body)' }}>
+          <Table.Tr>
             {effectiveColumns.map(col => (
-              <th
+              <Table.Th
                 key={col.key}
-                className="text-left py-1.5 px-3 text-xs font-medium text-muted-foreground uppercase tracking-wider whitespace-nowrap"
+                style={{ whiteSpace: 'nowrap' }}
+                fz="xs"
+                fw={500}
+                c="dimmed"
+                tt="uppercase"
+                py={6}
+                px="sm"
               >
                 {col.label}
-              </th>
+              </Table.Th>
             ))}
-          </tr>
-        </thead>
-        <tbody>
+          </Table.Tr>
+        </Table.Thead>
+        <Table.Tbody>
           {(data ?? []).map((row, i) => (
-            <tr key={i} className="border-b border-border hover:bg-accent/50 transition-colors">
+            <Table.Tr key={i}>
               {effectiveColumns.map(col => {
                 const align = col.align ?? (typeof row[col.key] === 'number' ? 'right' : 'left')
                 return (
-                  <td
+                  <Table.Td
                     key={col.key}
-                    className={cn(
-                      'py-1.5 px-3 font-mono text-xs',
-                      align === 'right' && 'text-right',
-                      align === 'center' && 'text-center',
-                    )}
-                    style={heatmapStyle(col.key, row[col.key])}
+                    style={{ textAlign: align, fontFamily: 'var(--mantine-font-family-monospace)', ...heatmapStyle(col.key, row[col.key]) }}
+                    fz="xs"
+                    py={6}
+                    px="sm"
                   >
                     {formatCell(row[col.key], col.format)}
-                  </td>
+                  </Table.Td>
                 )
               })}
-            </tr>
+            </Table.Tr>
           ))}
-        </tbody>
-      </table>
+        </Table.Tbody>
+      </Table>
       {(!data || data.length === 0) && (
-        <p className="text-center text-muted-foreground text-sm py-8">No data</p>
+        <Center py="xl">
+          <Text size="sm" c="dimmed">No data</Text>
+        </Center>
       )}
-    </div>
+    </Table.ScrollContainer>
   )
 }
 

frontend/functions/ui/date_picker_input.md

@@ -0,0 +1,145 @@
+---
+name: date_picker_input
+kind: component
+lang: ts
+domain: ui
+version: "1.0.0"
+purity: impure
+signature: "DatePickerInput(props: DatePickerInputProps): JSX.Element"
+description: "Selector de fecha con input y calendario desplegable. Soporta fecha simple, múltiple y rango. Wrapper sobre Mantine DatePickerInput."
+tags: [date, picker, calendar, form, component, ui, interactive, mantine]
+uses_functions: []
+uses_types: []
+returns: []
+returns_optional: false
+error_type: ""
+imports: ["@mantine/dates"]
+output: "Componente DatePickerInput que renderiza input con calendario para selección de fechas"
+tested: false
+tests: []
+test_file_path: ""
+file_path: "frontend/functions/ui/date_picker_input.tsx"
+props:
+  - name: type
+    type: "'default' | 'multiple' | 'range'"
+    required: false
+    description: "Modo de selección — fecha simple, múltiples fechas, o rango de fechas"
+  - name: value
+    type: "DateValue | DateValue[] | [DateValue, DateValue] | null"
+    required: false
+    description: "Fecha o fechas seleccionadas (controlled)"
+  - name: onChange
+    type: "(value: DateValue | DateValue[] | [DateValue, DateValue] | null) => void"
+    required: false
+    description: "Callback al cambiar la selección de fecha"
+  - name: valueFormat
+    type: "string"
+    required: false
+    description: "Formato de la fecha mostrada en el input (ej: 'DD/MM/YYYY')"
+  - name: clearable
+    type: "boolean"
+    required: false
+    description: "Permite limpiar la selección de fecha"
+  - name: label
+    type: "string"
+    required: false
+    description: "Label del campo"
+  - name: placeholder
+    type: "string"
+    required: false
+    description: "Texto cuando no hay fecha seleccionada"
+  - name: minDate
+    type: "Date"
+    required: false
+    description: "Fecha mínima seleccionable"
+  - name: maxDate
+    type: "Date"
+    required: false
+    description: "Fecha máxima seleccionable"
+  - name: disabled
+    type: "boolean"
+    required: false
+    description: "Deshabilitar el selector"
+  - name: size
+    type: "'xs' | 'sm' | 'md' | 'lg' | 'xl'"
+    required: false
+    description: "Tamaño del componente"
+emits: [onChange]
+has_state: true
+framework: react
+variant: [default]
+params:
+  - name: props
+    desc: "Props del componente DatePickerInput — incluye type (modo de selección), value, onChange, valueFormat, clearable, label, placeholder, minDate, maxDate, disabled y size"
+---
+
+## Ejemplo
+
+```tsx
+import { DatePickerInput, DatePicker } from '@fn_library'
+import { useState } from 'react'
+
+// Fecha simple
+function SingleDateExample() {
+  const [value, setValue] = useState<Date | null>(null)
+  return (
+    <DatePickerInput
+      label="Fecha de inicio"
+      placeholder="Selecciona una fecha"
+      value={value}
+      onChange={setValue}
+      clearable
+    />
+  )
+}
+
+// Rango de fechas
+function RangeDateExample() {
+  const [range, setRange] = useState<[Date | null, Date | null]>([null, null])
+  return (
+    <DatePickerInput
+      type="range"
+      label="Periodo"
+      placeholder="Selecciona un rango"
+      value={range}
+      onChange={setRange}
+      valueFormat="DD/MM/YYYY"
+    />
+  )
+}
+
+// Múltiples fechas
+function MultipleDateExample() {
+  const [dates, setDates] = useState<Date[]>([])
+  return (
+    <DatePickerInput
+      type="multiple"
+      label="Días seleccionados"
+      placeholder="Selecciona fechas"
+      value={dates}
+      onChange={setDates}
+      minDate={new Date()}
+    />
+  )
+}
+
+// DatePicker inline (sin input)
+function InlineDateExample() {
+  const [value, setValue] = useState<Date | null>(null)
+  return (
+    <DatePicker
+      value={value}
+      onChange={setValue}
+    />
+  )
+}
+```
+
+## Notas
+
+- Wrapper directo sobre `DatePickerInput` y `DatePicker` de `@mantine/dates` v9. Todas las props de Mantine son válidas.
+- Requiere importar `@mantine/dates/styles.css` — este wrapper ya lo incluye.
+- El prop `type` controla el modo: `'default'` (fecha simple), `'multiple'` (varias fechas), `'range'` (rango con inicio y fin).
+- `DatePicker` es el calendario inline sin input — útil para formularios donde el calendario debe estar siempre visible.
+- `valueFormat` acepta tokens de dayjs (ej: `'DD/MM/YYYY'`, `'MMMM D, YYYY'`).
+- Re-exporta también `DatePicker` de `@mantine/dates` con el mismo patrón de wrapper.

frontend/functions/ui/date_picker_input.tsx

@@ -0,0 +1,17 @@
+import { DatePickerInput as MantineDatePickerInput, DatePicker as MantineDatePicker } from '@mantine/dates'
+import type { DatePickerInputProps as MantineDatePickerInputProps, DatePickerProps as MantineDatePickerProps } from '@mantine/dates'
+import '@mantine/dates/styles.css'
+
+interface DatePickerInputProps extends MantineDatePickerInputProps<'default'> {}
+interface DatePickerProps extends MantineDatePickerProps<'default'> {}
+
+function DatePickerInput(props: DatePickerInputProps) {
+  return <MantineDatePickerInput {...props} />
+}
+
+function DatePicker(props: DatePickerProps) {
+  return <MantineDatePicker {...props} />
+}
+
+export { DatePickerInput, DatePicker }
+export type { DatePickerInputProps, DatePickerProps }

frontend/functions/ui/detail_page.md

@@ -8,12 +8,12 @@ purity: pure
 signature: "detailPage(props: DetailPageProps): ReactElement"
 description: "Genera una página de detalle de entidad con header (avatar, badge, back), grid de campos, tabs con contadores y timeline de actividad."
 tags: [detail, page, entity, timeline, factory, composition, ui]
-uses_functions: [cn_ts_core]
+uses_functions: []
 uses_types: []
 returns: []
 returns_optional: false
 error_type: ""
-imports: [react]
+imports: [react, "@mantine/core", "@tabler/icons-react"]
 params:
   - name: props
     desc: "Configuración de página de detalle: título, avatar, badge, tabs, timeline y campos de metadata"

frontend/functions/ui/detail_page.tsx

@@ -1,5 +1,6 @@
 import * as React from 'react'
-import { cn } from '../core/cn'
+import { Stack, Group, Title, Text, ActionIcon, Box, Tabs, Badge, Timeline, SimpleGrid } from '@mantine/core'
+import { IconChevronLeft } from '@tabler/icons-react'
 
 interface DetailField {
   label: string
@@ -38,96 +39,98 @@ interface DetailPageProps {
   className?: string
 }
 
-const variantDotColors = {
-  default: 'bg-primary',
-  success: 'bg-green-500',
-  warning: 'bg-amber-500',
-  error: 'bg-red-500',
+const variantColors: Record<string, string> = {
+  default: 'blue',
+  success: 'green',
+  warning: 'yellow',
+  error: 'red',
 }
 
 export function detailPage({
   title, subtitle, badge, avatar, actions, onBack,
-  fields, tabs, activeTab, onTabChange, timeline, className,
+  fields, tabs, activeTab, onTabChange, timeline,
 }: DetailPageProps): React.ReactElement {
   return (
-    <div className={cn('space-y-6', className)}>
+    <Stack gap="lg">
       {/* Header */}
-      <div className="flex items-start justify-between border-b pb-4">
-        <div className="flex items-start gap-4">
+      <Group justify="space-between" align="flex-start" pb="md" style={{ borderBottom: '1px solid var(--mantine-color-default-border)' }}>
+        <Group align="flex-start" gap="md">
           {onBack && (
-            <button onClick={onBack} className="mt-1 inline-flex size-7 shrink-0 items-center justify-center rounded-md hover:bg-muted">
-              <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2"><path d="m15 18-6-6 6-6"/></svg>
-            </button>
+            <ActionIcon variant="subtle" size="sm" onClick={onBack} mt={4}>
+              <IconChevronLeft size={16} />
+            </ActionIcon>
           )}
-          {avatar && <div className="size-12 shrink-0 overflow-hidden rounded-full bg-muted">{avatar}</div>}
-          <div className="space-y-1">
-            <div className="flex items-center gap-3">
-              <h1 className="text-2xl font-semibold tracking-tight">{title}</h1>
+          {avatar && (
+            <Box
+              w={48}
+              h={48}
+              style={{ flexShrink: 0, overflow: 'hidden', borderRadius: '50%', backgroundColor: 'var(--mantine-color-default)' }}
+            >
+              {avatar}
+            </Box>
+          )}
+          <Stack gap={4}>
+            <Group gap="sm" align="center">
+              <Title order={2}>{title}</Title>
               {badge}
-            </div>
-            {subtitle && <p className="text-sm text-muted-foreground">{subtitle}</p>}
-          </div>
-        </div>
-        {actions && <div className="flex items-center gap-2">{actions}</div>}
-      </div>
+            </Group>
+            {subtitle && <Text size="sm" c="dimmed">{subtitle}</Text>}
+          </Stack>
+        </Group>
+        {actions && <Group gap="xs">{actions}</Group>}
+      </Group>
 
       {/* Fields grid */}
-      <div className="grid grid-cols-1 gap-4 md:grid-cols-2">
+      <SimpleGrid cols={{ base: 1, md: 2 }} spacing="md">
         {fields.map((field, i) => (
-          <div key={i} className={cn('space-y-1', field.span === 2 && 'md:col-span-2')}>
-            <p className="text-sm text-muted-foreground">{field.label}</p>
-            <div className="text-sm font-medium">{field.value}</div>
-          </div>
+          <Box key={i} style={field.span === 2 ? { gridColumn: 'span 2' } : undefined}>
+            <Stack gap={4}>
+              <Text size="sm" c="dimmed">{field.label}</Text>
+              <Text size="sm" fw={500}>{field.value}</Text>
+            </Stack>
+          </Box>
         ))}
-      </div>
+      </SimpleGrid>
 
       {/* Tabs */}
       {tabs && tabs.length > 0 && (
-        <div className="space-y-4">
-          <nav className="flex gap-4 border-b">
-            {tabs.map((tab) => (
-              <button
-                key={tab.value}
-                type="button"
-                onClick={() => onTabChange?.(tab.value)}
-                className={cn(
-                  'inline-flex items-center gap-2 border-b-2 px-1 pb-3 text-sm font-medium transition-colors',
-                  activeTab === tab.value ? 'border-primary text-foreground' : 'border-transparent text-muted-foreground hover:text-foreground'
-                )}
-              >
-                {tab.label}
-                {tab.count !== undefined && (
-                  <span className="inline-flex h-5 items-center rounded-full bg-muted px-2 text-xs font-medium">{tab.count}</span>
-                )}
-              </button>
-            ))}
-          </nav>
+        <Stack gap="md">
+          <Tabs value={activeTab} onChange={(v) => v && onTabChange?.(v)}>
+            <Tabs.List>
+              {tabs.map((tab) => (
+                <Tabs.Tab
+                  key={tab.value}
+                  value={tab.value}
+                  rightSection={tab.count !== undefined ? <Badge size="xs" variant="filled" circle>{tab.count}</Badge> : undefined}
+                >
+                  {tab.label}
+                </Tabs.Tab>
+              ))}
+            </Tabs.List>
+          </Tabs>
           {tabs.find(t => t.value === activeTab)?.content}
-        </div>
+        </Stack>
       )}
 
       {/* Timeline */}
       {timeline && timeline.length > 0 && (
-        <div className="space-y-3">
-          <h3 className="text-sm font-medium text-muted-foreground">Activity</h3>
-          <div className="space-y-0">
-            {timeline.map((event, i) => (
-              <div key={event.id} className="flex gap-3 pb-4">
-                <div className="flex flex-col items-center">
-                  <div className={cn('mt-1 size-2.5 rounded-full', variantDotColors[event.variant || 'default'])} />
-                  {i < timeline.length - 1 && <div className="flex-1 w-px bg-border" />}
-                </div>
-                <div className="flex-1 space-y-0.5 pb-2">
-                  <p className="text-sm font-medium">{event.title}</p>
-                  {event.description && <p className="text-xs text-muted-foreground">{event.description}</p>}
-                  <p className="text-xs text-muted-foreground/70">{event.timestamp}</p>
-                </div>
-              </div>
+        <Stack gap="sm">
+          <Text size="sm" fw={500} c="dimmed">Activity</Text>
+          <Timeline active={timeline.length - 1} bulletSize={12} lineWidth={2}>
+            {timeline.map((event) => (
+              <Timeline.Item
+                key={event.id}
+                color={variantColors[event.variant || 'default']}
+                title={<Text size="sm" fw={500}>{event.title}</Text>}
+              >
+                {event.description && <Text size="xs" c="dimmed">{event.description}</Text>}
+                <Text size="xs" c="dimmed" opacity={0.7}>{event.timestamp}</Text>
+              </Timeline.Item>
             ))}
-          </div>
-        </div>
+          </Timeline>
+        </Stack>
       )}
-    </div>
+    </Stack>
   )
 }
 

frontend/functions/ui/dialog.md

@@ -6,15 +6,15 @@ domain: ui
 version: "1.0.0"
 purity: impure
 signature: "Dialog(props: DialogRootProps): JSX.Element"
-description: "Diálogo modal accesible con overlay blur, animaciones, close button y sistema de slots (header, footer, title, description)."
-tags: [dialog, modal, overlay, component, ui, interactive]
-uses_functions: [cn_ts_core]
+description: "Diálogo modal accesible con close button y sistema de slots (header, footer, title, description). Mantine Modal."
+tags: [dialog, modal, overlay, component, ui, interactive, mantine]
+uses_functions: []
 uses_types: []
 returns: []
 returns_optional: false
 error_type: ""
-imports: ["@base-ui/react", lucide-react, react]
-output: "Componente Dialog que renderiza modal accesible con overlay blur, focus trap y sistema de slots composables"
+imports: ["@mantine/core", react]
+output: "Componente Dialog que renderiza modal accesible con focus trap y sistema de slots composables via Mantine Modal"
 tested: false
 tests: []
 test_file_path: ""
@@ -53,4 +53,4 @@ source_file: "frontend/src/components/ui/dialog.tsx"
 
 ## Notas
 
-10 subcomponentes exportados. Base-UI Dialog primitive para accesibilidad completa (focus trap, escape, click outside).
+10 subcomponentes exportados. Mantine Modal para accesibilidad completa (focus trap, escape, click outside). DialogPortal y DialogOverlay son no-ops mantenidos por compatibilidad.

frontend/functions/ui/dialog.tsx

@@ -1,73 +1,134 @@
-import * as React from "react"
-import { Dialog as DialogPrimitive } from "@base-ui/react/dialog"
-import { cn } from "../core/cn"
-import { XIcon } from "lucide-react"
+import * as React from 'react'
+import { Modal, Box, Text, Group } from '@mantine/core'
 
-function Dialog({ ...props }: DialogPrimitive.Root.Props) {
-  return <DialogPrimitive.Root data-slot="dialog" {...props} />
+interface DialogProps {
+  open?: boolean
+  onOpenChange?: (open: boolean) => void
+  children: React.ReactNode
 }
 
-function DialogTrigger({ ...props }: DialogPrimitive.Trigger.Props) {
-  return <DialogPrimitive.Trigger data-slot="dialog-trigger" {...props} />
-}
+const DialogContext = React.createContext<{
+  open: boolean
+  setOpen: (open: boolean) => void
+}>({ open: false, setOpen: () => {} })
 
-function DialogPortal({ ...props }: DialogPrimitive.Portal.Props) {
-  return <DialogPrimitive.Portal data-slot="dialog-portal" {...props} />
-}
-
-function DialogClose({ ...props }: DialogPrimitive.Close.Props) {
-  return <DialogPrimitive.Close data-slot="dialog-close" {...props} />
-}
-
-function DialogOverlay({ className, ...props }: DialogPrimitive.Backdrop.Props) {
-  return (
-    <DialogPrimitive.Backdrop
-      data-slot="dialog-overlay"
-      className={cn("fixed inset-0 isolate z-50 bg-black/10 duration-100 supports-backdrop-filter:backdrop-blur-xs data-open:animate-in data-open:fade-in-0 data-closed:animate-out data-closed:fade-out-0", className)}
-      {...props}
-    />
+function Dialog({ open: controlledOpen, onOpenChange, children }: DialogProps) {
+  const [internalOpen, setInternalOpen] = React.useState(false)
+  const open = controlledOpen ?? internalOpen
+  const setOpen = React.useCallback(
+    (v: boolean) => {
+      onOpenChange?.(v)
+      if (controlledOpen === undefined) setInternalOpen(v)
+    },
+    [controlledOpen, onOpenChange],
   )
-}
-
-function DialogContent({ className, children, showCloseButton = true, ...props }: DialogPrimitive.Popup.Props & { showCloseButton?: boolean }) {
   return (
-    <DialogPortal>
-      <DialogOverlay />
-      <DialogPrimitive.Popup
-        data-slot="dialog-content"
-        className={cn("fixed top-1/2 left-1/2 z-50 grid w-full max-w-[calc(100%-2rem)] -translate-x-1/2 -translate-y-1/2 gap-4 rounded-xl bg-background p-4 text-sm ring-1 ring-foreground/10 duration-100 outline-none sm:max-w-sm data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95", className)}
-        {...props}
-      >
-        {children}
-        {showCloseButton && (
-          <DialogPrimitive.Close data-slot="dialog-close" className="absolute top-2 right-2 inline-flex size-7 items-center justify-center rounded-md hover:bg-muted">
-            <XIcon className="size-4" />
-            <span className="sr-only">Close</span>
-          </DialogPrimitive.Close>
-        )}
-      </DialogPrimitive.Popup>
-    </DialogPortal>
-  )
-}
-
-function DialogHeader({ className, ...props }: React.ComponentProps<"div">) {
-  return <div data-slot="dialog-header" className={cn("flex flex-col gap-2", className)} {...props} />
-}
-
-function DialogFooter({ className, children, ...props }: React.ComponentProps<"div">) {
-  return (
-    <div data-slot="dialog-footer" className={cn("-mx-4 -mb-4 flex flex-col-reverse gap-2 rounded-b-xl border-t bg-muted/50 p-4 sm:flex-row sm:justify-end", className)} {...props}>
+    <DialogContext.Provider value={{ open, setOpen }}>
       {children}
-    </div>
+    </DialogContext.Provider>
   )
 }
 
-function DialogTitle({ className, ...props }: DialogPrimitive.Title.Props) {
-  return <DialogPrimitive.Title data-slot="dialog-title" className={cn("text-base leading-none font-medium", className)} {...props} />
+function DialogTrigger({ children, ...props }: React.ComponentProps<'button'>) {
+  const { setOpen } = React.useContext(DialogContext)
+  return (
+    <button type="button" data-slot="dialog-trigger" onClick={() => setOpen(true)} {...props}>
+      {children}
+    </button>
+  )
 }
 
-function DialogDescription({ className, ...props }: DialogPrimitive.Description.Props) {
-  return <DialogPrimitive.Description data-slot="dialog-description" className={cn("text-sm text-muted-foreground", className)} {...props} />
+function DialogPortal({ children }: { children: React.ReactNode }) {
+  return <>{children}</>
+}
+
+function DialogClose({ children, ...props }: React.ComponentProps<'button'>) {
+  const { setOpen } = React.useContext(DialogContext)
+  return (
+    <button type="button" data-slot="dialog-close" onClick={() => setOpen(false)} {...props}>
+      {children}
+    </button>
+  )
+}
+
+function DialogOverlay() {
+  return null
+}
+
+function DialogContent({
+  children,
+  showCloseButton = true,
+  className,
+  ...props
+}: React.ComponentProps<'div'> & { showCloseButton?: boolean }) {
+  const { open, setOpen } = React.useContext(DialogContext)
+  return (
+    <Modal
+      opened={open}
+      onClose={() => setOpen(false)}
+      withCloseButton={showCloseButton}
+      radius="md"
+      padding="md"
+      size="sm"
+      centered
+      data-slot="dialog-content"
+      className={className}
+      {...props}
+    >
+      {children}
+    </Modal>
+  )
+}
+
+function DialogHeader({ className, ...props }: React.ComponentProps<'div'>) {
+  return <Box data-slot="dialog-header" mb="xs" className={className} {...props} />
+}
+
+function DialogFooter({ className, children, ...props }: React.ComponentProps<'div'>) {
+  return (
+    <Group
+      data-slot="dialog-footer"
+      justify="flex-end"
+      gap="sm"
+      mt="md"
+      pt="sm"
+      style={{ borderTop: '1px solid var(--mantine-color-default-border)' }}
+      className={className}
+      {...props}
+    >
+      {children}
+    </Group>
+  )
+}
+
+function DialogTitle({ className, children, ...props }: React.ComponentProps<'div'>) {
+  return (
+    <Text
+      component="div"
+      data-slot="dialog-title"
+      fw={500}
+      size="md"
+      className={className}
+      {...props}
+    >
+      {children}
+    </Text>
+  )
+}
+
+function DialogDescription({ className, children, ...props }: React.ComponentProps<'div'>) {
+  return (
+    <Text
+      component="div"
+      data-slot="dialog-description"
+      size="sm"
+      c="dimmed"
+      className={className}
+      {...props}
+    >
+      {children}
+    </Text>
+  )
 }
 
 export { Dialog, DialogClose, DialogContent, DialogDescription, DialogFooter, DialogHeader, DialogOverlay, DialogPortal, DialogTitle, DialogTrigger }

frontend/functions/ui/dropdown_menu.md

@@ -7,13 +7,13 @@ version: "1.0.0"
 purity: impure
 signature: "DropdownMenu(props: DropdownMenuProps): JSX.Element"
 description: "Menu de acciones y contexto accesible con items, checkboxes, radios, separadores y submenus. Base-UI Menu primitive."
-tags: [dropdown, menu, component, ui, interactive, overlay, base-ui]
-uses_functions: [cn_ts_core]
+tags: [dropdown, menu, component, ui, interactive, overlay, mantine]
+uses_functions: []
 uses_types: []
 returns: []
 returns_optional: false
 error_type: ""
-imports: ["@base-ui/react/menu", "lucide-react"]
+imports: ["@mantine/core"]
 output: "Componente DropdownMenu que renderiza menú desplegable accesible con items, checkboxes, radios y submenus"
 tested: false
 tests: []

frontend/functions/ui/dropdown_menu.tsx

@@ -1,187 +1,125 @@
-import * as React from "react"
-import { Menu as MenuPrimitive } from "@base-ui/react/menu"
-import { CheckIcon, ChevronRightIcon, CircleIcon } from "lucide-react"
-import { cn } from "../core/cn"
+import * as React from 'react'
+import { Menu, Text } from '@mantine/core'
 
-function DropdownMenu({ ...props }: MenuPrimitive.Root.Props) {
-  return <MenuPrimitive.Root data-slot="dropdown-menu" {...props} />
-}
-
-function DropdownMenuTrigger({ ...props }: MenuPrimitive.Trigger.Props) {
-  return <MenuPrimitive.Trigger data-slot="dropdown-menu-trigger" {...props} />
-}
-
-function DropdownMenuPortal({ ...props }: MenuPrimitive.Portal.Props) {
-  return <MenuPrimitive.Portal data-slot="dropdown-menu-portal" {...props} />
-}
-
-function DropdownMenuContent({ className, sideOffset = 4, ...props }: MenuPrimitive.Positioner.Props) {
+function DropdownMenu({ children, ...props }: { children: React.ReactNode; open?: boolean; defaultOpen?: boolean; onOpenChange?: (open: boolean) => void; modal?: boolean }) {
   return (
-    <DropdownMenuPortal>
-      <MenuPrimitive.Positioner
-        data-slot="dropdown-menu-content"
-        sideOffset={sideOffset}
-        className="z-50"
-        {...props}
-      >
-        <MenuPrimitive.Popup
-          className={cn(
-            "min-w-[8rem] overflow-hidden rounded-lg border bg-popover p-1 text-popover-foreground shadow-md",
-            "data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95",
-            "data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95",
-            "data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2",
-            className
-          )}
-        >
-          {props.children}
-        </MenuPrimitive.Popup>
-      </MenuPrimitive.Positioner>
-    </DropdownMenuPortal>
-  )
-}
-
-function DropdownMenuItem({ className, inset, ...props }: MenuPrimitive.Item.Props & { inset?: boolean }) {
-  return (
-    <MenuPrimitive.Item
-      data-slot="dropdown-menu-item"
-      className={cn(
-        "relative flex cursor-default select-none items-center gap-2 rounded-md px-2 py-1.5 text-sm outline-none transition-colors",
-        "focus:bg-accent focus:text-accent-foreground",
-        "data-disabled:pointer-events-none data-disabled:opacity-50",
-        "[&_svg]:pointer-events-none [&_svg]:size-4 [&_svg]:shrink-0",
-        inset && "pl-8",
-        className
-      )}
-      {...props}
-    />
-  )
-}
-
-function DropdownMenuCheckboxItem({ className, children, checked, ...props }: MenuPrimitive.CheckboxItem.Props) {
-  return (
-    <MenuPrimitive.CheckboxItem
-      data-slot="dropdown-menu-checkbox-item"
-      className={cn(
-        "relative flex cursor-default select-none items-center rounded-md py-1.5 pl-8 pr-2 text-sm outline-none transition-colors",
-        "focus:bg-accent focus:text-accent-foreground",
-        "data-disabled:pointer-events-none data-disabled:opacity-50",
-        className
-      )}
-      checked={checked}
-      {...props}
-    >
-      <span className="absolute left-2 flex size-4 items-center justify-center">
-        <MenuPrimitive.CheckboxItemIndicator>
-          <CheckIcon className="size-4" />
-        </MenuPrimitive.CheckboxItemIndicator>
-      </span>
-      {children}
-    </MenuPrimitive.CheckboxItem>
-  )
-}
-
-function DropdownMenuRadioGroup({ ...props }: MenuPrimitive.RadioGroup.Props) {
-  return <MenuPrimitive.RadioGroup data-slot="dropdown-menu-radio-group" {...props} />
-}
-
-function DropdownMenuRadioItem({ className, children, ...props }: MenuPrimitive.RadioItem.Props) {
-  return (
-    <MenuPrimitive.RadioItem
-      data-slot="dropdown-menu-radio-item"
-      className={cn(
-        "relative flex cursor-default select-none items-center rounded-md py-1.5 pl-8 pr-2 text-sm outline-none transition-colors",
-        "focus:bg-accent focus:text-accent-foreground",
-        "data-disabled:pointer-events-none data-disabled:opacity-50",
-        className
-      )}
-      {...props}
-    >
-      <span className="absolute left-2 flex size-4 items-center justify-center">
-        <MenuPrimitive.RadioItemIndicator>
-          <CircleIcon className="size-2 fill-current" />
-        </MenuPrimitive.RadioItemIndicator>
-      </span>
-      {children}
-    </MenuPrimitive.RadioItem>
-  )
-}
-
-function DropdownMenuGroup({ ...props }: MenuPrimitive.Group.Props) {
-  return <MenuPrimitive.Group data-slot="dropdown-menu-group" {...props} />
-}
-
-function DropdownMenuLabel({ className, inset, ...props }: MenuPrimitive.GroupLabel.Props & { inset?: boolean }) {
-  return (
-    <MenuPrimitive.GroupLabel
-      data-slot="dropdown-menu-label"
-      className={cn("px-2 py-1.5 text-xs font-medium text-muted-foreground", inset && "pl-8", className)}
-      {...props}
-    />
-  )
-}
-
-function DropdownMenuSeparator({ className, ...props }: React.ComponentProps<"div">) {
-  return (
-    <div
-      data-slot="dropdown-menu-separator"
-      className={cn("-mx-1 my-1 h-px bg-border", className)}
-      {...props}
-    />
-  )
-}
-
-function DropdownMenuShortcut({ className, ...props }: React.ComponentProps<"span">) {
-  return (
-    <span
-      data-slot="dropdown-menu-shortcut"
-      className={cn("ml-auto text-xs tracking-widest text-muted-foreground", className)}
-      {...props}
-    />
-  )
-}
-
-function DropdownMenuSub({ ...props }: MenuPrimitive.Root.Props) {
-  return <MenuPrimitive.Root data-slot="dropdown-menu-sub" {...props} />
-}
-
-function DropdownMenuSubTrigger({ className, inset, children, ...props }: MenuPrimitive.SubmenuTrigger.Props & { inset?: boolean }) {
-  return (
-    <MenuPrimitive.SubmenuTrigger
-      data-slot="dropdown-menu-sub-trigger"
-      className={cn(
-        "flex cursor-default select-none items-center gap-2 rounded-md px-2 py-1.5 text-sm outline-none transition-colors",
-        "focus:bg-accent focus:text-accent-foreground data-popup-open:bg-accent data-popup-open:text-accent-foreground",
-        "[&_svg]:pointer-events-none [&_svg]:size-4 [&_svg]:shrink-0",
-        inset && "pl-8",
-        className
-      )}
-      {...props}
+    <Menu
+      opened={props.open}
+      defaultOpened={props.defaultOpen}
+      onChange={props.onOpenChange}
+      withinPortal
+      shadow="md"
     >
       {children}
-      <ChevronRightIcon className="ml-auto" />
-    </MenuPrimitive.SubmenuTrigger>
+    </Menu>
   )
 }
 
-function DropdownMenuSubContent({ className, ...props }: MenuPrimitive.Positioner.Props) {
+function DropdownMenuTrigger({ children, ...props }: { children: React.ReactNode; asChild?: boolean; className?: string }) {
+  return <Menu.Target {...props}>{children}</Menu.Target>
+}
+
+function DropdownMenuPortal({ children }: { children?: React.ReactNode }) {
+  return <>{children}</>
+}
+
+function DropdownMenuContent({ children, className }: { children?: React.ReactNode; className?: string; sideOffset?: number }) {
+  return <Menu.Dropdown className={className}>{children}</Menu.Dropdown>
+}
+
+function DropdownMenuItem({ children, className, inset, ...props }: {
+  children?: React.ReactNode
+  className?: string
+  inset?: boolean
+  onClick?: () => void
+  onActivate?: () => void
+  disabled?: boolean
+}) {
   return (
-    <MenuPrimitive.Portal>
-      <MenuPrimitive.Positioner data-slot="dropdown-menu-sub-content" className="z-50" {...props}>
-        <MenuPrimitive.Popup
-          className={cn(
-            "min-w-[8rem] overflow-hidden rounded-lg border bg-popover p-1 text-popover-foreground shadow-md",
-            "data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95",
-            "data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95",
-            className
-          )}
-        >
-          {props.children}
-        </MenuPrimitive.Popup>
-      </MenuPrimitive.Positioner>
-    </MenuPrimitive.Portal>
+    <Menu.Item
+      className={className}
+      onClick={props.onClick ?? props.onActivate}
+      disabled={props.disabled}
+      pl={inset ? 'xl' : undefined}
+    >
+      {children}
+    </Menu.Item>
   )
 }
 
+function DropdownMenuCheckboxItem({ children, className, checked, onCheckedChange, ...props }: {
+  children?: React.ReactNode
+  className?: string
+  checked?: boolean
+  onCheckedChange?: (checked: boolean) => void
+  disabled?: boolean
+}) {
+  return (
+    <Menu.Item
+      className={className}
+      onClick={() => onCheckedChange?.(!checked)}
+      disabled={props.disabled}
+      leftSection={checked ? <span style={{ fontSize: 14 }}>✓</span> : <span style={{ width: 14 }} />}
+    >
+      {children}
+    </Menu.Item>
+  )
+}
+
+function DropdownMenuRadioGroup({ children }: { children?: React.ReactNode; value?: string; onValueChange?: (value: string) => void }) {
+  return <>{children}</>
+}
+
+function DropdownMenuRadioItem({ children, className, value, ...props }: {
+  children?: React.ReactNode
+  className?: string
+  value?: string
+  disabled?: boolean
+  onClick?: () => void
+}) {
+  return (
+    <Menu.Item className={className} onClick={props.onClick} disabled={props.disabled}>
+      {children}
+    </Menu.Item>
+  )
+}
+
+function DropdownMenuGroup({ children }: { children?: React.ReactNode }) {
+  return <>{children}</>
+}
+
+function DropdownMenuLabel({ children, className, inset }: { children?: React.ReactNode; className?: string; inset?: boolean }) {
+  return (
+    <Menu.Label className={className} pl={inset ? 'xl' : undefined}>
+      {children}
+    </Menu.Label>
+  )
+}
+
+function DropdownMenuSeparator({ className }: { className?: string }) {
+  return <Menu.Divider className={className} />
+}
+
+function DropdownMenuShortcut({ children, className }: { children?: React.ReactNode; className?: string }) {
+  return <Text span size="xs" c="dimmed" ml="auto" className={className}>{children}</Text>
+}
+
+function DropdownMenuSub({ children }: { children?: React.ReactNode }) {
+  return <>{children}</>
+}
+
+function DropdownMenuSubTrigger({ children, className, inset }: { children?: React.ReactNode; className?: string; inset?: boolean }) {
+  return (
+    <Menu.Item className={className} pl={inset ? 'xl' : undefined}>
+      {children}
+    </Menu.Item>
+  )
+}
+
+function DropdownMenuSubContent({ children, className }: { children?: React.ReactNode; className?: string }) {
+  return <Menu.Dropdown className={className}>{children}</Menu.Dropdown>
+}
+
 export {
   DropdownMenu,
   DropdownMenuCheckboxItem,

frontend/functions/ui/dropzone.md

@@ -0,0 +1,118 @@
+---
+name: dropzone
+kind: component
+lang: ts
+domain: ui
+version: "1.0.0"
+purity: impure
+signature: "Dropzone(props: DropzoneProps): JSX.Element"
+description: "Zona de drag-and-drop para archivos con estados idle/accept/reject, límite de tamaño y tipos MIME. Wrapper sobre Mantine Dropzone."
+tags: [dropzone, upload, drag-drop, file, component, ui, interactive, mantine]
+uses_functions: []
+uses_types: []
+returns: []
+returns_optional: false
+error_type: ""
+imports: ["@mantine/dropzone"]
+output: "Componente Dropzone que renderiza área de arrastrar y soltar archivos con feedback visual"
+tested: false
+tests: []
+test_file_path: ""
+file_path: "frontend/functions/ui/dropzone.tsx"
+props:
+  - name: onDrop
+    type: "(files: File[]) => void"
+    required: false
+    description: "Callback ejecutado cuando el usuario suelta archivos aceptados"
+  - name: onReject
+    type: "(files: FileRejection[]) => void"
+    required: false
+    description: "Callback ejecutado cuando el usuario suelta archivos rechazados (tipo o tamaño inválido)"
+  - name: accept
+    type: "Record<string, string[]>"
+    required: false
+    description: "Tipos MIME aceptados. Usar IMAGE_MIME_TYPE o MIME_TYPES para constantes predefinidas"
+  - name: maxSize
+    type: "number"
+    required: false
+    description: "Tamaño máximo de archivo en bytes"
+  - name: multiple
+    type: "boolean"
+    required: false
+    description: "Permite seleccionar múltiples archivos a la vez"
+  - name: loading
+    type: "boolean"
+    required: false
+    description: "Muestra estado de carga y desactiva la interacción"
+  - name: disabled
+    type: "boolean"
+    required: false
+    description: "Desactiva el dropzone"
+  - name: children
+    type: "React.ReactNode"
+    required: true
+    description: "Contenido interno, generalmente compuesto con DropzoneAccept, DropzoneReject y DropzoneIdle"
+emits: [onDrop, onReject]
+has_state: true
+framework: react
+variant: []
+---
+
+## Ejemplo
+
+```tsx
+import {
+  Dropzone,
+  DropzoneAccept,
+  DropzoneReject,
+  DropzoneIdle,
+  IMAGE_MIME_TYPE,
+} from '@fn_library/dropzone'
+import { IconPhoto, IconUpload, IconX } from '@tabler/icons-react'
+import { Group, Text } from '@mantine/core'
+
+function ImageUploader() {
+  return (
+    <Dropzone
+      onDrop={(files) => console.log('Archivos aceptados:', files)}
+      onReject={(files) => console.log('Archivos rechazados:', files)}
+      accept={IMAGE_MIME_TYPE}
+      maxSize={5 * 1024 ** 2}
+    >
+      <Group justify="center" gap="xl" mih={120} style={{ pointerEvents: 'none' }}>
+        <DropzoneAccept>
+          <IconUpload size={52} stroke={1.5} />
+        </DropzoneAccept>
+        <DropzoneReject>
+          <IconX size={52} stroke={1.5} />
+        </DropzoneReject>
+        <DropzoneIdle>
+          <IconPhoto size={52} stroke={1.5} />
+        </DropzoneIdle>
+        <div>
+          <Text size="xl" inline>
+            Arrastra imágenes aquí o haz clic para seleccionar
+          </Text>
+          <Text size="sm" c="dimmed" inline mt={7}>
+            Máximo 5 MB por imagen
+          </Text>
+        </div>
+      </Group>
+    </Dropzone>
+  )
+}
+```
+
+## Notas
+
+El prop `onDrop` tiene un default vacío (`() => {}`) para que el componente sea válido sin handler. Siempre sobreescribirlo en uso real.
+
+Sub-componentes exportados:
+- `DropzoneAccept` — visible cuando el archivo arrastrado es aceptado (tipo y tamaño válidos)
+- `DropzoneReject` — visible cuando el archivo es rechazado
+- `DropzoneIdle` — visible en estado de reposo
+- `DropzoneFullScreen` — captura drops en cualquier parte de la pantalla
+
+Constantes de tipos MIME exportadas:
+- `IMAGE_MIME_TYPE` — imágenes comunes (png, jpg, gif, webp, etc.)
+- `MIME_TYPES` — objeto con claves por tipo (pdf, csv, xlsx, mp4, etc.)

frontend/functions/ui/dropzone.tsx

@@ -0,0 +1,20 @@
+import { Dropzone as MantineDropzone, IMAGE_MIME_TYPE, MIME_TYPES } from '@mantine/dropzone'
+import type { DropzoneProps as MantineDropzoneProps } from '@mantine/dropzone'
+import '@mantine/dropzone/styles.css'
+
+interface DropzoneProps extends Partial<MantineDropzoneProps> {
+  children: React.ReactNode
+}
+
+function Dropzone({ children, ...props }: DropzoneProps) {
+  return <MantineDropzone onDrop={() => {}} {...props}>{children}</MantineDropzone>
+}
+
+// Re-export sub-components and constants
+const DropzoneAccept = MantineDropzone.Accept
+const DropzoneReject = MantineDropzone.Reject
+const DropzoneIdle = MantineDropzone.Idle
+const DropzoneFullScreen = MantineDropzone.FullScreen
+
+export { Dropzone, DropzoneAccept, DropzoneReject, DropzoneIdle, DropzoneFullScreen, IMAGE_MIME_TYPE, MIME_TYPES }
+export type { DropzoneProps }

frontend/functions/ui/empty_state.md

@@ -0,0 +1,103 @@
+---
+name: empty_state
+kind: component
+lang: ts
+domain: ui
+version: "1.0.0"
+purity: impure
+signature: "EmptyState(props: EmptyStateProps): JSX.Element"
+description: "Placeholder para listas y tablas vacías con icono, título, descripción y acción opcional. Tabler Icons por defecto."
+tags: [empty-state, placeholder, no-data, component, ui, mantine]
+uses_functions: []
+uses_types: []
+returns: []
+returns_optional: false
+error_type: ""
+imports: ["@mantine/core", "@tabler/icons-react"]
+tested: false
+tests: []
+test_file_path: ""
+file_path: "frontend/functions/ui/empty_state.tsx"
+framework: react
+has_state: false
+emits: [onAction]
+props:
+  - name: icon
+    type: "React.ReactNode"
+    required: false
+    description: "Icono a mostrar. Default: IconInbox de @tabler/icons-react."
+  - name: title
+    type: "string"
+    required: false
+    description: "Título del empty state. Default: 'No data found'."
+  - name: description
+    type: "string"
+    required: false
+    description: "Descripción explicativa. Default: 'There are no items to display yet.'."
+  - name: actionLabel
+    type: "string"
+    required: false
+    description: "Texto del botón de acción. Se muestra solo si también hay onAction."
+  - name: onAction
+    type: "() => void"
+    required: false
+    description: "Callback del botón de acción. Se muestra solo si también hay actionLabel."
+  - name: size
+    type: "MantineSize"
+    required: false
+    description: "Tamaño general del componente. Afecta el icono, texto y botón. Default: 'md'."
+  - name: children
+    type: "React.ReactNode"
+    required: false
+    description: "Contenido custom renderizado debajo de la descripción y antes del botón."
+output: "Componente EmptyState centrado con icono, mensaje y botón de acción para estados sin datos"
+params:
+  - name: props
+    desc: "Props del componente EmptyState"
+---
+
+## Ejemplo
+
+```tsx
+import { EmptyState } from '@fn_library/empty_state'
+
+// Default — sin datos
+<EmptyState />
+
+// Con acción
+<EmptyState
+  title="No functions found"
+  description="Try adjusting your search or create a new function."
+  actionLabel="Create function"
+  onAction={() => navigate('/new')}
+/>
+
+// Con icono custom
+import { IconDatabase } from '@tabler/icons-react'
+
+<EmptyState
+  icon={<IconDatabase size={48} stroke={1.5} />}
+  title="No databases connected"
+  description="Connect a database to start querying data."
+  size="lg"
+/>
+
+// Dentro de una Card
+import { Card } from '@mantine/core'
+import { EmptyState } from '@fn_library/empty_state'
+
+<Card withBorder p="xl">
+  <EmptyState
+    title="No results"
+    description="Your query returned no rows."
+    size="sm"
+  />
+</Card>
+```
+
+## Notas
+
+El tamaño del icono escala con `size`: xs=32, sm=40, md=48, lg=64, xl=80.
+El orden del heading (`Title order`) es 5 para xs/sm y 4 para md/lg/xl.
+El botón usa `variant="light"` de Mantine — hereda el color primario del tema.
+`children` se renderiza entre la descripción y el botón, útil para filtros o links adicionales.

frontend/functions/ui/empty_state.tsx

@@ -0,0 +1,55 @@
+import * as React from 'react'
+import { Button, Stack, Text, Title, type MantineSize } from '@mantine/core'
+import { IconInbox } from '@tabler/icons-react'
+
+interface EmptyStateProps {
+  /** Icono a mostrar (default: IconInbox) */
+  icon?: React.ReactNode
+  /** Título */
+  title?: string
+  /** Descripción */
+  description?: string
+  /** Texto del botón de acción */
+  actionLabel?: string
+  /** Callback del botón */
+  onAction?: () => void
+  /** Tamaño general */
+  size?: MantineSize
+  /** Contenido custom debajo de la descripción */
+  children?: React.ReactNode
+}
+
+function EmptyState({
+  icon,
+  title = 'No data found',
+  description = 'There are no items to display yet.',
+  actionLabel,
+  onAction,
+  size = 'md',
+  children,
+}: EmptyStateProps) {
+  const iconSize = size === 'xs' ? 32 : size === 'sm' ? 40 : size === 'lg' ? 64 : size === 'xl' ? 80 : 48
+
+  return (
+    <Stack align="center" gap="sm" py="xl">
+      <Text c="dimmed" style={{ opacity: 0.5 }}>
+        {icon || <IconInbox size={iconSize} stroke={1.5} />}
+      </Text>
+      <Title order={size === 'xs' || size === 'sm' ? 5 : 4} ta="center">
+        {title}
+      </Title>
+      <Text c="dimmed" size={size} ta="center" maw={400}>
+        {description}
+      </Text>
+      {children}
+      {actionLabel && onAction && (
+        <Button variant="light" size={size} onClick={onAction} mt="xs">
+          {actionLabel}
+        </Button>
+      )}
+    </Stack>
+  )
+}
+
+export { EmptyState }
+export type { EmptyStateProps }

frontend/functions/ui/error_page.md

@@ -0,0 +1,75 @@
+---
+name: error_page
+kind: component
+lang: ts
+domain: ui
+version: "1.0.0"
+purity: impure
+signature: "ErrorPage(config: ErrorPageConfig): JSX.Element"
+description: "Genera página de error con código grande, título, descripción y acciones. Soporta 404, 500, 403 y cualquier código custom."
+tags: [error, 404, 500, page, empty-state, ui, mantine]
+uses_functions: []
+uses_types: []
+returns: []
+returns_optional: false
+error_type: ""
+imports: [react, "@mantine/core"]
+params:
+  - name: code
+    desc: "Código de error numérico o string a mostrar prominentemente (404, 500, 403, o cualquier valor custom)"
+  - name: title
+    desc: "Título del error mostrado bajo el código. Default: 'Page not found'"
+  - name: description
+    desc: "Descripción explicativa del error. Default: mensaje genérico de página no encontrada"
+  - name: actionLabel
+    desc: "Texto del botón de acción principal. Default: 'Go back to home'"
+  - name: onAction
+    desc: "Callback invocado al pulsar el botón de acción principal"
+  - name: extraActions
+    desc: "Nodos React adicionales renderizados junto al botón principal (botones secundarios, links, etc.)"
+output: "Página de error centrada con código prominente, mensaje descriptivo y botones de acción"
+has_state: false
+framework: react
+emits: [onAction]
+tested: false
+tests: []
+test_file_path: ""
+file_path: "frontend/functions/ui/error_page.tsx"
+---
+
+## Ejemplo
+
+```tsx
+import { ErrorPage } from '@fn_library/error_page'
+import { Button } from '@mantine/core'
+
+// 404 con defaults
+<ErrorPage onAction={() => navigate('/')} />
+
+// 500 custom
+<ErrorPage
+  code={500}
+  title="Internal Server Error"
+  description="Something went wrong on our end. Please try again later or contact support."
+  actionLabel="Retry"
+  onAction={() => window.location.reload()}
+/>
+
+// 403 con acciones extra
+<ErrorPage
+  code={403}
+  title="Access Denied"
+  description="You don't have permission to view this page. Contact your administrator to request access."
+  actionLabel="Go to Dashboard"
+  onAction={() => navigate('/dashboard')}
+  extraActions={
+    <Button variant="outline" size="md" onClick={() => navigate('/login')}>
+      Switch Account
+    </Button>
+  }
+/>
+```
+
+## Notas
+
+El código de error se muestra con `fz={120}` y opacidad reducida (0.25) para crear un efecto visual de fondo sin distraer del mensaje. Acepta `number | string` para soportar códigos custom como "503" o "Maintenance".

frontend/functions/ui/error_page.tsx

@@ -0,0 +1,56 @@
+import * as React from 'react'
+import { Button, Container, Group, Stack, Text, Title } from '@mantine/core'
+
+interface ErrorPageConfig {
+  /** Código de error (404, 500, 403, etc.) */
+  code?: number | string
+  /** Título del error */
+  title?: string
+  /** Descripción del error */
+  description?: string
+  /** Texto del botón de acción */
+  actionLabel?: string
+  /** Callback del botón */
+  onAction?: () => void
+  /** Acciones extra además del botón principal */
+  extraActions?: React.ReactNode
+}
+
+function ErrorPage({
+  code = 404,
+  title = 'Page not found',
+  description = 'The page you are looking for does not exist. You may have mistyped the address, or the page has been moved to another URL.',
+  actionLabel = 'Go back to home',
+  onAction,
+  extraActions,
+}: ErrorPageConfig) {
+  return (
+    <Container py={80}>
+      <Stack align="center" gap="md">
+        <Text
+          fz={120}
+          fw={900}
+          c="dimmed"
+          style={{ lineHeight: 1, opacity: 0.25 }}
+        >
+          {code}
+        </Text>
+        <Title order={2} ta="center">
+          {title}
+        </Title>
+        <Text c="dimmed" size="lg" ta="center" maw={500}>
+          {description}
+        </Text>
+        <Group mt="md">
+          <Button size="md" onClick={onAction}>
+            {actionLabel}
+          </Button>
+          {extraActions}
+        </Group>
+      </Stack>
+    </Container>
+  )
+}
+
+export { ErrorPage }
+export type { ErrorPageConfig }

frontend/functions/ui/file_input.md

@@ -0,0 +1,102 @@
+---
+name: file_input
+kind: component
+lang: ts
+domain: ui
+version: "1.0.0"
+purity: impure
+signature: "FileInput(props: FileInputProps): JSX.Element"
+description: "Input de archivos con soporte para múltiples archivos, tipos aceptados y botón de limpiar. Wrapper sobre Mantine FileInput."
+tags: [file, upload, input, form, component, ui, interactive, mantine]
+uses_functions: []
+uses_types: []
+returns: []
+returns_optional: false
+error_type: ""
+imports: ["@mantine/core"]
+tested: false
+tests: []
+test_file_path: ""
+file_path: "frontend/functions/ui/file_input.tsx"
+framework: react
+has_state: true
+emits: [onChange]
+props:
+  - name: multiple
+    type: "boolean"
+    required: false
+    description: "Permite seleccionar múltiples archivos"
+  - name: accept
+    type: "string"
+    required: false
+    description: "Tipos MIME o extensiones aceptadas (ej: 'image/*', '.pdf,.docx')"
+  - name: clearable
+    type: "boolean"
+    required: false
+    description: "Muestra botón para limpiar el archivo seleccionado"
+  - name: value
+    type: "File | File[] | null"
+    required: false
+    description: "Valor controlado del input"
+  - name: onChange
+    type: "(value: File | File[] | null) => void"
+    required: false
+    description: "Callback que se dispara al seleccionar o limpiar un archivo"
+  - name: placeholder
+    type: "string"
+    required: false
+    description: "Texto mostrado cuando no hay archivo seleccionado"
+  - name: label
+    type: "string"
+    required: false
+    description: "Etiqueta visible sobre el input"
+  - name: disabled
+    type: "boolean"
+    required: false
+    description: "Deshabilita el input"
+  - name: size
+    type: "'xs' | 'sm' | 'md' | 'lg' | 'xl'"
+    required: false
+    description: "Tamaño del componente"
+params:
+  - name: props
+    desc: "Props de FileInput: archivo(s) seleccionado(s), tipos aceptados, modo múltiple, estado controlado y apariencia"
+output: "Componente FileInput que renderiza input para selección de archivos con preview del nombre"
+---
+
+## Ejemplo
+
+```tsx
+import { FileInput } from '@fn_library'
+
+// Archivo único
+<FileInput
+  label="Subir documento"
+  placeholder="Selecciona un archivo"
+  clearable
+/>
+
+// Múltiples archivos
+<FileInput
+  label="Subir archivos"
+  placeholder="Selecciona uno o varios archivos"
+  multiple
+  clearable
+/>
+
+// Solo imágenes
+<FileInput
+  label="Subir imagen"
+  placeholder="Selecciona una imagen"
+  accept="image/*"
+  clearable
+/>
+```
+
+## Notas
+
+Wrapper directo sobre `FileInput` de `@mantine/core`. Acepta todas las props de Mantine sin restricciones.
+
+Para `multiple: true`, el tipo de `value` y `onChange` cambia a `File[] | null` automáticamente gracias al tipado genérico de Mantine.
+
+El prop `clearable` añade un ícono de X que permite vaciar la selección sin reabrir el explorador de archivos.

frontend/functions/ui/file_input.tsx

@@ -0,0 +1,10 @@
+import { FileInput as MantineFileInput, type FileInputProps as MantineFileInputProps } from '@mantine/core'
+
+interface FileInputProps extends MantineFileInputProps {}
+
+function FileInput(props: FileInputProps) {
+  return <MantineFileInput {...props} />
+}
+
+export { FileInput }
+export type { FileInputProps }

frontend/functions/ui/form_field.md

@@ -8,12 +8,12 @@ purity: impure
 signature: "FormField(props: FormFieldProps): JSX.Element"
 description: "Wrapper de campo de formulario con label, helper text, error y ARIA automáticos. Inyecta id y aria-describedby a hijos."
 tags: [form, field, label, error, component, ui, accessibility]
-uses_functions: [cn_ts_core]
+uses_functions: []
 uses_types: []
 returns: []
 returns_optional: false
 error_type: ""
-imports: [react]
+imports: ["@mantine/core"]
 output: "Componente FormField que renderiza wrapper de campo con label, helper text, error y ARIA automáticos"
 tested: false
 tests: []

frontend/functions/ui/form_field.tsx

@@ -1,5 +1,5 @@
-import * as React from "react"
-import { cn } from "../core/cn"
+import * as React from 'react'
+import { Box, Text } from '@mantine/core'
 
 interface FormFieldProps {
   label?: string
@@ -15,26 +15,39 @@ function FormField({ label, helperText, error, children, className }: FormFieldP
   const helperId = `${id}-helper`
   const errorId = `${id}-error`
 
-  const describedBy = [helperText ? helperId : null, error ? errorId : null].filter(Boolean).join(" ") || undefined
+  const describedBy = [helperText ? helperId : null, error ? errorId : null].filter(Boolean).join(' ') || undefined
 
   const childWithProps = React.Children.map(children, (child) => {
     if (React.isValidElement(child)) {
       return React.cloneElement(child as React.ReactElement<Record<string, unknown>>, {
         id: inputId,
-        "aria-invalid": error ? true : undefined,
-        "aria-describedby": describedBy,
+        'aria-invalid': error ? true : undefined,
+        'aria-describedby': describedBy,
+        error: error || undefined,
       })
     }
     return child
   })
 
   return (
-    <div className={cn("flex flex-col gap-1.5", className)}>
-      {label && <label htmlFor={inputId} className="text-sm font-medium text-foreground">{label}</label>}
+    <Box className={className}>
+      {label && (
+        <Text component="label" htmlFor={inputId} size="sm" fw={500} mb={4} display="block">
+          {label}
+        </Text>
+      )}
       {childWithProps}
-      {helperText && !error && <p id={helperId} className="text-sm text-muted-foreground">{helperText}</p>}
-      {error && <p id={errorId} className="text-sm text-destructive">{error}</p>}
-    </div>
+      {helperText && !error && (
+        <Text id={helperId} size="sm" c="dimmed" mt={4}>
+          {helperText}
+        </Text>
+      )}
+      {error && (
+        <Text id={errorId} size="sm" c="red" mt={4}>
+          {error}
+        </Text>
+      )}
+    </Box>
   )
 }
 

frontend/functions/ui/graph/index.tsx

@@ -49,6 +49,12 @@ export interface GraphTheme {
   selectionColor?: string
 }
 
+export interface ContextMenuTarget {
+  type: "node" | "edge" | "canvas"
+  id?: string
+  data?: GraphNode | GraphEdge
+}
+
 export interface GraphContainerProps {
   data: GraphData
   layout?: "organic" | "random"
@@ -58,6 +64,7 @@ export interface GraphContainerProps {
   nodeTypes?: NodeType[]
   onNodeClick?: (node: GraphNode) => void
   onNodeDoubleClick?: (node: GraphNode) => void
+  onContextMenu?: (event: MouseEvent, target: ContextMenuTarget) => void
   enableSelection?: boolean
   selectionMode?: "single" | "multiple"
   theme?: GraphTheme
@@ -84,6 +91,7 @@ function GraphContainer({
   nodeTypes = [],
   onNodeClick,
   onNodeDoubleClick,
+  onContextMenu,
   theme: themeProp,
   height = "100%",
   className,
@@ -96,10 +104,30 @@ function GraphContainer({
     [themeProp],
   )
 
-  // Build + render
+  // Build + render — wait for container to have dimensions
+  const [ready, setReady] = React.useState(false)
   React.useEffect(() => {
     const el = containerRef.current
     if (!el) return
+    if (el.clientHeight > 0 && el.clientWidth > 0) {
+      setReady(true)
+      return
+    }
+    const ro = new ResizeObserver((entries) => {
+      for (const entry of entries) {
+        if (entry.contentRect.height > 0 && entry.contentRect.width > 0) {
+          setReady(true)
+          ro.disconnect()
+        }
+      }
+    })
+    ro.observe(el)
+    return () => ro.disconnect()
+  }, [])
+
+  React.useEffect(() => {
+    const el = containerRef.current
+    if (!el || !ready) return
 
     // Cleanup previous instance
     if (sigmaRef.current) {
@@ -110,7 +138,7 @@ function GraphContainer({
     const g = new Graph({ multi: true, type: "directed" })
     graphRef.current = g
 
-    // Add nodes
+    // Add nodes — store entity type as entityType to avoid sigma interpreting it as render program
     for (const n of data.nodes) {
       g.addNode(n.id, {
         label: n.label,
@@ -118,7 +146,7 @@ function GraphContainer({
         y: n.y ?? (Math.random() - 0.5) * 10,
         size: n.size ?? theme.nodeSize,
         color: n.color ?? theme.nodeColor,
-        type: n.type,
+        entityType: n.type,
       })
     }
 
@@ -152,6 +180,7 @@ function GraphContainer({
 
     // Render
     const renderer = new Sigma(g, el, {
+      allowInvalidContainer: true,
       renderEdgeLabels: false,
       defaultEdgeColor: theme.edgeColor,
       defaultNodeColor: theme.nodeColor,
@@ -174,13 +203,30 @@ function GraphContainer({
         onNodeDoubleClick({ id: node, ...attrs } as unknown as GraphNode)
       })
     }
+    if (onContextMenu) {
+      renderer.on("rightClickNode", ({ node, event }) => {
+        const mouseEvent = event.original as MouseEvent
+        mouseEvent.preventDefault()
+        const attrs = g.getNodeAttributes(node)
+        onContextMenu(mouseEvent, {
+          type: "node",
+          id: node,
+          data: { id: node, ...attrs } as unknown as GraphNode,
+        })
+      })
+      renderer.on("rightClickStage", ({ event }) => {
+        const mouseEvent = event.original as MouseEvent
+        mouseEvent.preventDefault()
+        onContextMenu(mouseEvent, { type: "canvas" })
+      })
+    }
 
     return () => {
       renderer.kill()
       sigmaRef.current = null
       graphRef.current = null
     }
-  }, [data, layout, theme, onNodeClick, onNodeDoubleClick])
+  }, [data, layout, theme, onNodeClick, onNodeDoubleClick, onContextMenu, ready])
 
   // Container background
   const containerStyle: React.CSSProperties = {

frontend/functions/ui/index.ts

@@ -8,7 +8,8 @@ export { Dialog, DialogClose, DialogContent, DialogDescription, DialogFooter, Di
 export { Input, InputGroup, InputIcon } from './input'
 export { Label } from './label'
 export { KPICard } from './kpi_card'
-export { Select, SelectContent, SelectGroup, SelectGroupLabel, SelectItem, SelectPortal, SelectSeparator, SelectTrigger, SelectValue } from './select'
+export { Select } from './select'
+export type { SelectProps } from './select'
 export { SimpleSelect } from './simple_select'
 export type { SimpleSelectOption, SimpleSelectGroup, SimpleSelectOptions } from './simple_select'
 export { Skeleton, SkeletonAvatar, SkeletonButton, SkeletonCard, SkeletonTable, SkeletonText } from './skeleton'
@@ -37,11 +38,9 @@ export type { Series } from './chart_container'
 export { DataTable } from './data_table'
 export type { DataTableProps, ColumnDef } from './data_table'
 
-// Theme
-export { ThemeProvider, useTheme, ThemeContext } from './theme_provider'
-export type { ThemeProviderProps } from './theme_provider'
-export { applyTheme } from './apply_theme'
-export type { Theme, ThemeColors } from './apply_theme'
+// Mantine Provider
+export { FnMantineProvider } from './mantine_provider'
+export type { FnMantineProviderProps } from './mantine_provider'
 
 // Page templates
 export { analyticsPage } from './analytics_page'
@@ -82,14 +81,14 @@ export type { CheckboxProps } from './checkbox'
 
 // Command
 export { Command, CommandEmpty, CommandGroup, CommandInput, CommandItem, CommandList, CommandSearch, CommandSeparator, CommandShortcut } from './command'
-export type { CommandProps } from './command'
+export type { CommandItemData, CommandProps } from './command'
 
 // Dropdown Menu
 export { DropdownMenu, DropdownMenuCheckboxItem, DropdownMenuContent, DropdownMenuGroup, DropdownMenuItem, DropdownMenuLabel, DropdownMenuPortal, DropdownMenuRadioGroup, DropdownMenuRadioItem, DropdownMenuSeparator, DropdownMenuShortcut, DropdownMenuSub, DropdownMenuSubContent, DropdownMenuSubTrigger, DropdownMenuTrigger } from './dropdown_menu'
 
 // Pagination
-export { Pagination, PaginationContent, PaginationEllipsis, PaginationItem, PaginationLink, PaginationNext, PaginationPrevious } from './pagination'
-export type { PaginationLinkProps } from './pagination'
+export { Pagination } from './pagination'
+export type { PaginationProps } from './pagination'
 
 // Popover
 export { Popover, PopoverClose, PopoverContent, PopoverDescription, PopoverHeader, PopoverPortal, PopoverTitle, PopoverTrigger } from './popover'
@@ -123,3 +122,15 @@ export { useAnimatedCanvas } from './use_animated_canvas'
 
 // Wails Provider
 export { WailsProvider } from './wails_provider'
+
+// New Mantine components
+export { FnAppShell } from './app_shell'
+export { FnStepper } from './stepper'
+export { FnTimeline } from './timeline'
+export { FnActionIcon } from './action_icon'
+export { FnNumberInput } from './number_input'
+export { FnSegmentedControl } from './segmented_control'
+export { FnLoadingOverlay } from './loading_overlay'
+export { FnRingProgress } from './ring_progress'
+export { FnNavLink } from './nav_link'
+export { FnIndicator } from './indicator'

frontend/functions/ui/indicator.md

@@ -0,0 +1,77 @@
+---
+name: indicator
+kind: component
+lang: ts
+domain: ui
+version: "1.0.0"
+purity: impure
+signature: "FnIndicator(props: FnIndicatorProps): JSX.Element"
+description: "Badge indicador posicionado sobre un elemento hijo. Wrapper sobre Mantine Indicator."
+tags: [mantine, indicator, badge, notification, dot, component, ui]
+uses_functions: []
+uses_types: []
+returns: []
+returns_optional: false
+error_type: ""
+imports: ["@mantine/core"]
+framework: react
+props:
+  - name: children
+    type: "ReactNode"
+    required: true
+    description: "Elemento sobre el cual se posiciona el indicador"
+  - name: color
+    type: "MantineColor"
+    required: false
+    description: "Color del indicador, default red"
+  - name: size
+    type: "number"
+    required: false
+    description: "Tamano del dot en px, default 10"
+  - name: position
+    type: "'top-start' | 'top-center' | 'top-end' | 'middle-start' | 'middle-center' | 'middle-end' | 'bottom-start' | 'bottom-center' | 'bottom-end'"
+    required: false
+    description: "Posicion del indicador, default top-end"
+  - name: processing
+    type: "boolean"
+    required: false
+    description: "Animacion de pulso, default false"
+  - name: disabled
+    type: "boolean"
+    required: false
+    description: "Oculta el indicador, default false"
+  - name: label
+    type: "ReactNode"
+    required: false
+    description: "Contenido dentro del indicador (numero, texto)"
+output: "Elemento hijo con un dot/badge indicador posicionado en una esquina"
+tested: false
+tests: []
+test_file_path: ""
+file_path: "frontend/functions/ui/indicator.tsx"
+emits: []
+has_state: false
+variant: []
+---
+
+## Ejemplo
+
+```tsx
+import { FnIndicator } from '@fn_library'
+import { FnActionIcon } from '@fn_library'
+import { IconBell } from '@tabler/icons-react'
+
+{/* Dot simple */}
+<FnIndicator processing>
+  <FnActionIcon icon={<IconBell size={18} />} />
+</FnIndicator>
+
+{/* Con contador */}
+<FnIndicator label={5} size={16} color="blue">
+  <Avatar src="user.png" />
+</FnIndicator>
+```
+
+## Notas
+
+Wrapper sobre Mantine `Indicator`. El `processing` prop agrega una animacion de pulso al dot. Si se provee `label`, el indicador se agranda para mostrar contenido. `disabled` oculta el indicador sin desmontar el componente.

frontend/functions/ui/indicator.tsx

@@ -0,0 +1,39 @@
+import * as React from 'react'
+import { Indicator } from '@mantine/core'
+import type { MantineColor } from '@mantine/core'
+
+interface FnIndicatorProps {
+  children: React.ReactNode
+  color?: MantineColor
+  size?: number
+  position?: 'top-start' | 'top-center' | 'top-end' | 'middle-start' | 'middle-center' | 'middle-end' | 'bottom-start' | 'bottom-center' | 'bottom-end'
+  processing?: boolean
+  disabled?: boolean
+  label?: React.ReactNode
+}
+
+function FnIndicator({
+  children,
+  color = 'red',
+  size = 10,
+  position = 'top-end',
+  processing = false,
+  disabled = false,
+  label,
+}: FnIndicatorProps) {
+  return (
+    <Indicator
+      color={color}
+      size={size}
+      position={position}
+      processing={processing}
+      disabled={disabled}
+      label={label}
+    >
+      {children}
+    </Indicator>
+  )
+}
+
+export { FnIndicator }
+export type { FnIndicatorProps }

frontend/functions/ui/input.md

@@ -6,14 +6,14 @@ domain: ui
 version: "1.0.0"
 purity: impure
 signature: "Input(props: InputHTMLAttributes): JSX.Element"
-description: "Campo de entrada accesible con soporte para iconos, grupos, validación ARIA y estados disabled/invalid."
-tags: [input, form, component, ui, interactive]
-uses_functions: [cn_ts_core]
+description: "Campo de entrada accesible con soporte para iconos, grupos, validación ARIA y estados disabled/invalid. Mantine TextInput."
+tags: [input, form, component, ui, interactive, mantine]
+uses_functions: []
 uses_types: []
 returns: []
 returns_optional: false
 error_type: ""
-imports: ["@base-ui/react", "react"]
+imports: ["@mantine/core"]
 output: "Componente Input que renderiza campo de entrada accesible con soporte para iconos y validación ARIA"
 tested: false
 tests: []
@@ -49,4 +49,4 @@ source_file: "frontend/src/components/ui/input.tsx"
 
 ## Notas
 
-Exporta Input, InputGroup e InputIcon. InputGroup detecta automáticamente la presencia de iconos y ajusta padding del Input.
+Exporta Input, InputGroup e InputIcon. Usa Mantine TextInput internamente. InputGroup e InputIcon se mantienen como wrappers de compatibilidad — para nuevos usos preferir leftSection/rightSection de Mantine TextInput directamente.

frontend/functions/ui/input.tsx

@@ -1,18 +1,17 @@
-import * as React from "react"
-import { Input as InputPrimitive } from "@base-ui/react/input"
-import { cn } from "../core/cn"
+import * as React from 'react'
+import { TextInput, Box } from '@mantine/core'
 
-function Input({ className, type, ...props }: React.ComponentProps<"input">) {
+function Input({
+  className,
+  type,
+  ...props
+}: React.ComponentProps<typeof TextInput> & { type?: string }) {
   return (
-    <InputPrimitive
+    <TextInput
       type={type}
       data-slot="input"
-      className={cn(
-        "h-8 w-full min-w-0 rounded-lg border border-input bg-transparent px-2.5 py-1 text-base transition-colors outline-none file:inline-flex file:h-6 file:border-0 file:bg-transparent file:text-sm file:font-medium file:text-foreground placeholder:text-muted-foreground focus-visible:border-ring focus-visible:ring-3 focus-visible:ring-ring/50 disabled:pointer-events-none disabled:cursor-not-allowed disabled:bg-input/50 disabled:opacity-50 aria-invalid:border-destructive aria-invalid:ring-3 aria-invalid:ring-destructive/20 md:text-sm dark:bg-input/30 dark:disabled:bg-input/80 dark:aria-invalid:border-destructive/50 dark:aria-invalid:ring-destructive/40",
-        "group-has-[data-slot=input-icon-start]/input-group:pl-9",
-        "group-has-[data-slot=input-icon-end]/input-group:pr-9",
-        className
-      )}
+      size="sm"
+      className={className}
       {...props}
     />
   )
@@ -25,32 +24,34 @@ interface InputGroupProps {
 
 function InputGroup({ children, className }: InputGroupProps) {
   return (
-    <div data-slot="input-group" className={cn("group/input-group relative", className)}>
+    <Box data-slot="input-group" className={className}>
       {children}
-    </div>
+    </Box>
   )
 }
 
 interface InputIconProps {
   children: React.ReactNode
-  position: "start" | "end"
+  position: 'start' | 'end'
   className?: string
 }
 
 function InputIcon({ children, position, className }: InputIconProps) {
   return (
-    <span
+    <Box
       data-slot={`input-icon-${position}`}
-      className={cn(
-        "pointer-events-none absolute top-1/2 -translate-y-1/2 text-muted-foreground [&_svg]:size-4",
-        position === "start" && "left-2.5",
-        position === "end" && "right-2.5",
-        className
-      )}
+      component="span"
+      className={className}
+      style={{
+        display: 'inline-flex',
+        alignItems: 'center',
+        pointerEvents: 'none',
+      }}
     >
       {children}
-    </span>
+    </Box>
   )
 }
 
 export { Input, InputGroup, InputIcon }
+export type { InputGroupProps, InputIconProps }

frontend/functions/ui/kpi_card.md

@@ -8,7 +8,7 @@ purity: impure
 signature: "KPICard(props: KPICardProps): JSX.Element"
 description: "Card de KPI con label, valor+unidad, delta descriptivo con color semántico, icono, slot de chart inline y action. 3 tamaños."
 tags: [kpi, card, metrics, dashboard, component, ui, sparkline]
-uses_functions: [cn_ts_core]
+uses_functions: []
 uses_types: []
 returns: []
 returns_optional: false

frontend/functions/ui/kpi_card.tsx

@@ -1,78 +1,87 @@
 import * as React from 'react'
-import { cn } from '../core/cn'
+import { Paper, Text, Group, Stack, Box } from '@mantine/core'
 
 type KPICardSize = 'sm' | 'default' | 'lg'
 
 interface Delta {
   value: number
   isPositive: boolean
-  /** Descriptive label before value, e.g. "Increased by" */
   label?: string
-  /** Suffix after value, e.g. "vs yesterday" */
   suffix?: string
 }
 
 interface KPICardProps extends React.HTMLAttributes<HTMLDivElement> {
   label: string
   value: string | number
-  /** Unit displayed next to value in smaller font, e.g. "k", "ms", "%" */
   unit?: string
   delta?: Delta
   icon?: React.ReactNode
-  /** Action slot rendered top-right, e.g. a menu button */
   action?: React.ReactNode
-  /** Inline chart slot rendered to the right of the value */
   chart?: React.ReactNode
   subtitle?: string
   size?: KPICardSize
 }
 
-const sizeStyles: Record<KPICardSize, { value: string; unit: string; label: string }> = {
-  sm: { value: 'text-2xl font-bold', unit: 'text-base font-medium', label: 'text-xs' },
-  default: { value: 'text-3xl font-bold', unit: 'text-lg font-medium', label: 'text-sm' },
-  lg: { value: 'text-4xl font-bold', unit: 'text-xl font-medium', label: 'text-base' },
+const valueSizes: Record<KPICardSize, string> = {
+  sm: '1.5rem',
+  default: '1.875rem',
+  lg: '2.25rem',
+}
+
+const unitSizes: Record<KPICardSize, string> = {
+  sm: 'md',
+  default: 'lg',
+  lg: 'xl',
+}
+
+const labelSizes: Record<KPICardSize, string> = {
+  sm: 'xs',
+  default: 'sm',
+  lg: 'md',
 }
 
 const KPICard = React.forwardRef<HTMLDivElement, KPICardProps>(
   ({ label, value, unit, delta, icon, action, chart, subtitle, size = 'default', className, ...props }, ref) => {
-    const styles = sizeStyles[size]
     const deltaColor = delta
-      ? delta.value === 0 ? 'text-muted-foreground'
-        : delta.isPositive ? 'text-green-600 dark:text-green-500'
-        : 'text-red-600 dark:text-red-500'
-      : ''
+      ? delta.value === 0 ? 'dimmed'
+        : delta.isPositive ? 'teal'
+        : 'red'
+      : undefined
 
     return (
-      <div ref={ref} className={cn('rounded-lg border bg-card p-4 text-card-foreground shadow-sm', className)} {...props}>
-        <div className="flex items-start justify-between">
-          <div className="flex items-center gap-2">
-            {icon && <div className="text-muted-foreground">{icon}</div>}
-            <div className="space-y-1">
-              <p className={cn('text-muted-foreground', styles.label)}>{label}</p>
-              {subtitle && <p className="text-xs text-muted-foreground/80">{subtitle}</p>}
-            </div>
-          </div>
-          {action && <div className="text-muted-foreground">{action}</div>}
-        </div>
-        <div className="mt-3 flex items-end justify-between gap-4">
-          <div className="space-y-1">
-            <div className="flex items-baseline gap-1">
-              <span className={cn('tracking-tight', styles.value)}>{value}</span>
-              {unit && <span className={cn('text-muted-foreground', styles.unit)}>{unit}</span>}
-            </div>
+      <Paper ref={ref} withBorder shadow="xs" radius="md" p="md" className={className} {...props}>
+        <Group justify="space-between" align="flex-start">
+          <Group gap="xs" align="center">
+            {icon && <Box c="dimmed">{icon}</Box>}
+            <Stack gap={2}>
+              <Text size={labelSizes[size]} c="dimmed">{label}</Text>
+              {subtitle && <Text size="xs" c="dimmed" opacity={0.8}>{subtitle}</Text>}
+            </Stack>
+          </Group>
+          {action && <Box c="dimmed">{action}</Box>}
+        </Group>
+
+        <Group justify="space-between" align="flex-end" mt="md" gap="lg">
+          <Stack gap={4}>
+            <Group gap={4} align="baseline">
+              <Text fw={700} style={{ fontSize: valueSizes[size], lineHeight: 1, letterSpacing: '-0.025em' }}>
+                {value}
+              </Text>
+              {unit && <Text size={unitSizes[size]} c="dimmed" fw={500}>{unit}</Text>}
+            </Group>
             {delta && (
-              <div className="flex items-center gap-1 text-xs text-muted-foreground">
-                {delta.label && <span>{delta.label}</span>}
-                <span className={cn('font-medium', deltaColor)}>
-                  {delta.isPositive ? '▲' : '▼'} {delta.value > 0 ? '+' : ''}{delta.value}{delta.label ? '' : '%'}
-                </span>
-                {delta.suffix && <span>{delta.suffix}</span>}
-              </div>
+              <Group gap={4} align="center">
+                {delta.label && <Text size="xs" c="dimmed">{delta.label}</Text>}
+                <Text size="xs" fw={500} c={deltaColor}>
+                  {delta.isPositive ? '\u25B2' : '\u25BC'} {delta.value > 0 ? '+' : ''}{delta.value}{delta.label ? '' : '%'}
+                </Text>
+                {delta.suffix && <Text size="xs" c="dimmed">{delta.suffix}</Text>}
+              </Group>
             )}
-          </div>
-          {chart && <div className="flex-shrink-0">{chart}</div>}
-        </div>
-      </div>
+          </Stack>
+          {chart && <Box style={{ flexShrink: 0 }}>{chart}</Box>}
+        </Group>
+      </Paper>
     )
   }
 )

frontend/functions/ui/label.md

@@ -6,14 +6,14 @@ domain: ui
 version: "1.0.0"
 purity: impure
 signature: "Label(props: LabelHTMLAttributes): JSX.Element"
-description: "Etiqueta de formulario accesible con soporte para estados disabled y peer-disabled."
-tags: [label, form, component, ui]
-uses_functions: [cn_ts_core]
+description: "Etiqueta de formulario accesible con soporte para estados disabled. Mantine Text con component=label."
+tags: [label, form, component, ui, mantine]
+uses_functions: []
 uses_types: []
 returns: []
 returns_optional: false
 error_type: ""
-imports: ["react"]
+imports: ["@mantine/core"]
 output: "Componente Label que renderiza etiqueta de formulario accesible con soporte para estados disabled"
 tested: false
 tests: []

frontend/functions/ui/label.tsx

@@ -1,14 +1,15 @@
-import * as React from "react"
-import { cn } from "../core/cn"
+import * as React from 'react'
+import { Text } from '@mantine/core'
 
-function Label({ className, ...props }: React.ComponentProps<"label">) {
+function Label({ className, ...props }: React.ComponentProps<'label'>) {
   return (
-    <label
+    <Text
+      component="label"
       data-slot="label"
-      className={cn(
-        "flex items-center gap-2 text-sm leading-none font-medium select-none group-data-[disabled=true]:pointer-events-none group-data-[disabled=true]:opacity-50 peer-disabled:cursor-not-allowed peer-disabled:opacity-50",
-        className
-      )}
+      size="sm"
+      fw={500}
+      style={{ display: 'inline-flex', alignItems: 'center', gap: 8, userSelect: 'none' }}
+      className={className}
       {...props}
     />
   )

frontend/functions/ui/line_chart.md

@@ -6,15 +6,15 @@ domain: ui
 version: "1.0.0"
 purity: impure
 signature: "LineChart(props: LineChartProps): JSX.Element"
-description: "Gráfico de líneas Recharts con multi-series, 5 tipos de curva, zoom brush, líneas de referencia, tooltips temáticos."
-tags: [chart, line, visualization, recharts, component, ui]
-uses_functions: [cn_ts_core, chart_container_ts_ui, get_series_color_ts_core]
+description: "Gráfico de líneas @mantine/charts con multi-series, 5 tipos de curva, líneas de referencia y tooltips."
+tags: [chart, line, visualization, mantine, component, ui]
+uses_functions: [chart_container_ts_ui]
 uses_types: [ChartSeries_ts_ui]
 returns: []
 returns_optional: false
 error_type: ""
-imports: [recharts]
-output: "Componente LineChart que renderiza gráfico de líneas multi-series con zoom, curvas customizables y líneas de referencia"
+imports: ["@mantine/charts", "@mantine/core"]
+output: "Componente LineChart que renderiza gráfico de líneas multi-series con curvas customizables y líneas de referencia"
 tested: false
 tests: []
 test_file_path: ""
@@ -32,10 +32,6 @@ props:
     type: "Series[]"
     required: false
     description: "Series de datos"
-  - name: zoomable
-    type: "boolean"
-    required: false
-    description: "Habilitar zoom brush"
   - name: curveType
     type: "'linear' | 'monotone' | 'step' | 'stepBefore' | 'stepAfter'"
     required: false

frontend/functions/ui/line_chart.tsx

@@ -1,8 +1,6 @@
-import {
-  LineChart as RechartsLineChart, Line, XAxis, YAxis, CartesianGrid,
-  Tooltip, Legend, Brush, ReferenceLine,
-} from 'recharts'
-import { ChartContainer, ChartTooltipContent, type Series, getSeriesColor } from './chart_container'
+import { LineChart as MantineLineChart } from '@mantine/charts'
+import { Paper } from '@mantine/core'
+import { type Series, getSeriesColor } from './chart_container'
 
 type CurveType = 'linear' | 'monotone' | 'step' | 'stepBefore' | 'stepAfter'
 
@@ -15,9 +13,7 @@ interface LineChartProps {
   showGrid?: boolean
   showLegend?: boolean
   showDots?: boolean
-  zoomable?: boolean
-  height?: number | string
-  className?: string
+  height?: number
   xAxisFormatter?: (value: unknown) => string
   yAxisFormatter?: (value: unknown) => string
   valueFormatter?: (value: number) => string
@@ -26,30 +22,37 @@ interface LineChartProps {
 
 function LineChartComponent({
   data, xKey, yKey, series, curveType = 'monotone', showGrid = true, showLegend = false,
-  showDots = true, zoomable = false, height = 300, className, xAxisFormatter, yAxisFormatter,
+  showDots = true, height = 300, xAxisFormatter, yAxisFormatter,
   valueFormatter = (v) => v.toLocaleString(), referenceLines = [],
 }: LineChartProps) {
-  const lines = series
-    ? series.map((s, i) => ({ dataKey: s.key, name: s.name, stroke: getSeriesColor(i, s.color) }))
-    : yKey ? [{ dataKey: yKey, name: yKey, stroke: getSeriesColor(0) }] : []
+  const chartSeries = series
+    ? series.map((s, i) => ({ name: s.key, label: s.name, color: getSeriesColor(i, s.color) }))
+    : yKey ? [{ name: yKey, label: yKey, color: getSeriesColor(0) }] : []
+
+  const refLines = referenceLines.map((ref) => ({
+    y: ref.y,
+    label: ref.label || '',
+    color: ref.color || 'gray.6',
+  }))
 
   return (
-    <ChartContainer className={className} height={height}>
-      <RechartsLineChart data={data} margin={{ top: 10, right: 10, left: 10, bottom: zoomable ? 30 : 10 }}>
-        {showGrid && <CartesianGrid strokeDasharray="3 3" className="stroke-muted" />}
-        <XAxis dataKey={xKey} tickFormatter={xAxisFormatter} className="text-xs fill-muted-foreground" />
-        <YAxis tickFormatter={yAxisFormatter} className="text-xs fill-muted-foreground" />
-        <Tooltip content={<ChartTooltipContent valueFormatter={valueFormatter} />} cursor={{ stroke: 'hsl(var(--muted-foreground))', strokeDasharray: '3 3' }} />
-        {showLegend && <Legend />}
-        {referenceLines.map((ref, i) => (
-          <ReferenceLine key={i} y={ref.y} stroke={ref.color || 'hsl(var(--muted-foreground))'} strokeDasharray="3 3" label={ref.label ? { value: ref.label, position: 'right' } : undefined} />
-        ))}
-        {lines.map((line) => (
-          <Line key={line.dataKey} type={curveType} dataKey={line.dataKey} name={line.name} stroke={line.stroke} strokeWidth={2} dot={showDots ? { r: 3, fill: line.stroke } : false} activeDot={{ r: 5, fill: line.stroke }} />
-        ))}
-        {zoomable && <Brush dataKey={xKey} height={20} stroke="hsl(var(--primary))" fill="hsl(var(--muted))" tickFormatter={xAxisFormatter} />}
-      </RechartsLineChart>
-    </ChartContainer>
+    <Paper p="md">
+      <MantineLineChart
+        h={height}
+        data={data}
+        dataKey={xKey}
+        series={chartSeries}
+        curveType={curveType}
+        gridAxis={showGrid ? 'xy' : 'none'}
+        withLegend={showLegend}
+        withTooltip
+        withDots={showDots}
+        valueFormatter={valueFormatter}
+        referenceLines={refLines}
+        xAxisProps={xAxisFormatter ? { tickFormatter: xAxisFormatter } : undefined}
+        yAxisProps={yAxisFormatter ? { tickFormatter: yAxisFormatter } : undefined}
+      />
+    </Paper>
   )
 }
 

frontend/functions/ui/loading_overlay.md

@@ -0,0 +1,58 @@
+---
+name: loading_overlay
+kind: component
+lang: ts
+domain: ui
+version: "1.0.0"
+purity: impure
+signature: "FnLoadingOverlay(props: FnLoadingOverlayProps): JSX.Element"
+description: "Overlay de carga con blur y opacidad configurable. Wrapper sobre Mantine LoadingOverlay."
+tags: [mantine, loading, overlay, spinner, component, ui]
+uses_functions: []
+uses_types: []
+returns: []
+returns_optional: false
+error_type: ""
+imports: ["@mantine/core"]
+framework: react
+props:
+  - name: visible
+    type: "boolean"
+    required: true
+    description: "Controla visibilidad del overlay"
+  - name: loaderSize
+    type: "number | string"
+    required: false
+    description: "Tamano del loader/spinner"
+  - name: overlayBlur
+    type: "number"
+    required: false
+    description: "Intensidad del blur del fondo, default 2"
+  - name: overlayOpacity
+    type: "number"
+    required: false
+    description: "Opacidad del overlay, default 0.5"
+output: "Overlay semi-transparente con spinner centrado que cubre el contenedor padre"
+tested: false
+tests: []
+test_file_path: ""
+file_path: "frontend/functions/ui/loading_overlay.tsx"
+emits: []
+has_state: false
+variant: []
+---
+
+## Ejemplo
+
+```tsx
+import { FnLoadingOverlay } from '@fn_library'
+
+<Box pos="relative">
+  <FnLoadingOverlay visible={loading} overlayBlur={3} />
+  <DataTable data={rows} />
+</Box>
+```
+
+## Notas
+
+Wrapper sobre Mantine `LoadingOverlay`. El contenedor padre necesita `position: relative` para que el overlay se posicione correctamente. Usa `loaderProps` y `overlayProps` internamente para mapear las props simplificadas.

frontend/functions/ui/loading_overlay.tsx

@@ -0,0 +1,26 @@
+import { LoadingOverlay } from '@mantine/core'
+
+interface FnLoadingOverlayProps {
+  visible: boolean
+  loaderSize?: number | string
+  overlayBlur?: number
+  overlayOpacity?: number
+}
+
+function FnLoadingOverlay({
+  visible,
+  loaderSize,
+  overlayBlur = 2,
+  overlayOpacity = 0.5,
+}: FnLoadingOverlayProps) {
+  return (
+    <LoadingOverlay
+      visible={visible}
+      loaderProps={loaderSize ? { size: loaderSize } : undefined}
+      overlayProps={{ blur: overlayBlur, backgroundOpacity: overlayOpacity }}
+    />
+  )
+}
+
+export { FnLoadingOverlay }
+export type { FnLoadingOverlayProps }

frontend/functions/ui/mantine_provider.md

@@ -0,0 +1,59 @@
+---
+name: mantine_provider
+kind: component
+lang: ts
+domain: ui
+version: "1.0.0"
+purity: impure
+signature: "FnMantineProvider({ children, theme?, defaultColorScheme? })"
+description: "Provider raiz de Mantine para apps del registry. Wrappea MantineProvider con Notifications incluido. Importa los CSS de @mantine/core, charts y notifications."
+tags: [mantine, provider, theme, react]
+uses_functions: []
+uses_types: []
+returns: []
+returns_optional: false
+error_type: "error_go_core"
+imports: ["@mantine/core", "@mantine/notifications", "@mantine/charts"]
+framework: react
+props:
+  - name: children
+    desc: "contenido de la app"
+  - name: theme
+    desc: "tema Mantine creado con createTheme() — colores, fuentes, radio, etc."
+  - name: defaultColorScheme
+    desc: "esquema de color por defecto: 'dark' | 'light' | 'auto'"
+output: "arbol React envuelto en MantineProvider con notificaciones"
+tested: false
+tests: []
+test_file_path: ""
+file_path: "frontend/functions/ui/mantine_provider.tsx"
+---
+
+## Ejemplo
+
+```tsx
+import { createTheme, MantineColorsTuple } from '@mantine/core'
+import { FnMantineProvider } from '@fn_library'
+
+const brand: MantineColorsTuple = [
+  '#e5f3ff', '#cde2ff', '#9ac2ff', '#64a0ff', '#3884fe',
+  '#1d72fe', '#0063ff', '#0058e4', '#004ecd', '#0043b5'
+]
+
+const theme = createTheme({
+  colors: { brand },
+  primaryColor: 'brand',
+})
+
+function App() {
+  return (
+    <FnMantineProvider theme={theme} defaultColorScheme="dark">
+      {/* Tu app aqui */}
+    </FnMantineProvider>
+  )
+}
+```
+
+## Notas
+
+Reemplaza ThemeProvider + applyTheme del sistema anterior. Las apps definen su propio tema con `createTheme()` y lo pasan como prop. Los CSS de Mantine se importan una sola vez aqui.

frontend/functions/ui/mantine_provider.tsx

@@ -0,0 +1,29 @@
+import '@mantine/core/styles.css'
+import '@mantine/charts/styles.css'
+import '@mantine/notifications/styles.css'
+
+import * as React from 'react'
+import { MantineProvider, type MantineThemeOverride, type MantineColorScheme } from '@mantine/core'
+import { Notifications } from '@mantine/notifications'
+
+interface FnMantineProviderProps {
+  children: React.ReactNode
+  theme?: MantineThemeOverride
+  defaultColorScheme?: MantineColorScheme
+}
+
+function FnMantineProvider({
+  children,
+  theme,
+  defaultColorScheme = 'dark',
+}: FnMantineProviderProps) {
+  return (
+    <MantineProvider theme={theme} defaultColorScheme={defaultColorScheme}>
+      <Notifications position="top-right" />
+      {children}
+    </MantineProvider>
+  )
+}
+
+export { FnMantineProvider }
+export type { FnMantineProviderProps }

frontend/functions/ui/multi_select.md

@@ -0,0 +1,111 @@
+---
+name: multi_select
+kind: component
+lang: ts
+domain: ui
+version: "1.0.0"
+purity: impure
+signature: "MultiSelect(props: MultiSelectProps): JSX.Element"
+description: "Selector múltiple con búsqueda, pills y límite de selecciones. Wrapper sobre Mantine MultiSelect."
+tags: [multi-select, form, dropdown, pills, component, ui, interactive, mantine]
+uses_functions: []
+uses_types: []
+returns: []
+returns_optional: false
+error_type: ""
+imports: ["@mantine/core"]
+output: "Componente MultiSelect que renderiza dropdown con selección múltiple, búsqueda y pills"
+tested: false
+tests: []
+test_file_path: ""
+file_path: "frontend/functions/ui/multi_select.tsx"
+props:
+  - name: data
+    type: "string[] | { value: string; label: string; disabled?: boolean }[]"
+    required: true
+    description: "Opciones del selector — strings o objetos {value, label}"
+  - name: value
+    type: "string[]"
+    required: false
+    description: "Valores seleccionados (controlled)"
+  - name: onChange
+    type: "(value: string[]) => void"
+    required: false
+    description: "Callback al cambiar la selección"
+  - name: searchable
+    type: "boolean"
+    required: false
+    description: "Permite buscar entre opciones"
+  - name: clearable
+    type: "boolean"
+    required: false
+    description: "Muestra botón para limpiar toda la selección"
+  - name: maxValues
+    type: "number"
+    required: false
+    description: "Número máximo de valores seleccionables"
+  - name: placeholder
+    type: "string"
+    required: false
+    description: "Texto cuando no hay selección"
+  - name: label
+    type: "string"
+    required: false
+    description: "Label del campo"
+  - name: disabled
+    type: "boolean"
+    required: false
+    description: "Deshabilitar el selector"
+  - name: size
+    type: "'xs' | 'sm' | 'md' | 'lg' | 'xl'"
+    required: false
+    description: "Tamaño del componente"
+emits: [onChange]
+has_state: true
+framework: react
+variant: [default]
+---
+
+## Ejemplo
+
+```tsx
+import { MultiSelect } from '@fn_library'
+
+// Opciones simples
+<MultiSelect
+  label="Frameworks favoritos"
+  placeholder="Elige uno o más"
+  data={['React', 'Vue', 'Angular', 'Svelte']}
+/>
+
+// Con búsqueda y clearable
+<MultiSelect
+  label="Tecnologías"
+  placeholder="Busca y selecciona"
+  searchable
+  clearable
+  value={selected}
+  onChange={setSelected}
+  data={[
+    { value: 'react', label: 'React' },
+    { value: 'vue', label: 'Vue' },
+    { value: 'ts', label: 'TypeScript' },
+  ]}
+/>
+
+// Máximo de selecciones
+<MultiSelect
+  label="Elige hasta 2"
+  placeholder="Máximo 2"
+  maxValues={2}
+  data={['Opción A', 'Opción B', 'Opción C', 'Opción D']}
+/>
+```
+
+## Notas
+
+- Wrapper directo sobre `MultiSelect` de `@mantine/core` v9. Todas las props de Mantine MultiSelect son válidas.
+- A diferencia de `Select`, `value` es `string[]` y `onChange` recibe `string[]`.
+- Las selecciones se muestran como pills dentro del input, eliminables con clic.
+- `maxValues` limita cuántos items pueden seleccionarse — el dropdown bloquea más selecciones al alcanzar el límite.
+- Soporta `searchable` para filtrar opciones y `clearable` para un botón de limpiar todo.

frontend/functions/ui/multi_select.tsx

@@ -0,0 +1,10 @@
+import { MultiSelect as MantineMultiSelect, type MultiSelectProps as MantineMultiSelectProps } from '@mantine/core'
+
+interface MultiSelectProps extends MantineMultiSelectProps {}
+
+function MultiSelect(props: MultiSelectProps) {
+  return <MantineMultiSelect {...props} />
+}
+
+export { MultiSelect }
+export type { MultiSelectProps }

frontend/functions/ui/nav_link.md

@@ -0,0 +1,80 @@
+---
+name: nav_link
+kind: component
+lang: ts
+domain: ui
+version: "1.0.0"
+purity: impure
+signature: "FnNavLink(props: FnNavLinkProps): JSX.Element"
+description: "Link de navegacion con icono, descripcion y anidamiento. Wrapper sobre Mantine NavLink."
+tags: [mantine, navigation, link, sidebar, menu, component, ui]
+uses_functions: []
+uses_types: []
+returns: []
+returns_optional: false
+error_type: ""
+imports: ["@mantine/core"]
+framework: react
+props:
+  - name: label
+    type: "string"
+    required: true
+    description: "Texto principal del link"
+  - name: description
+    type: "string"
+    required: false
+    description: "Texto secundario debajo del label"
+  - name: icon
+    type: "ReactNode"
+    required: false
+    description: "Icono a la izquierda del label"
+  - name: active
+    type: "boolean"
+    required: false
+    description: "Estado activo/seleccionado"
+  - name: onClick
+    type: "MouseEventHandler"
+    required: false
+    description: "Callback al hacer click"
+  - name: href
+    type: "string"
+    required: false
+    description: "URL para navegacion como anchor"
+  - name: children
+    type: "ReactNode"
+    required: false
+    description: "NavLinks hijos para crear arbol anidado"
+  - name: opened
+    type: "boolean"
+    required: false
+    description: "Controla si los hijos estan expandidos"
+  - name: defaultOpened
+    type: "boolean"
+    required: false
+    description: "Estado inicial de expansion de hijos"
+output: "Link de navegacion con highlight activo, icono y soporte para sub-items colapsables"
+tested: false
+tests: []
+test_file_path: ""
+file_path: "frontend/functions/ui/nav_link.tsx"
+emits: []
+has_state: false
+variant: []
+---
+
+## Ejemplo
+
+```tsx
+import { FnNavLink } from '@fn_library'
+import { IconHome, IconSettings } from '@tabler/icons-react'
+
+<FnNavLink label="Home" icon={<IconHome size={16} />} active />
+<FnNavLink label="Settings" icon={<IconSettings size={16} />} defaultOpened>
+  <FnNavLink label="General" />
+  <FnNavLink label="Seguridad" />
+</FnNavLink>
+```
+
+## Notas
+
+Wrapper sobre Mantine `NavLink`. Soporta anidamiento -- pasar `FnNavLink` como children crea un arbol colapsable. El `icon` se mapea a `leftSection` internamente. Ideal para uso dentro de `FnAppShell` navbar.

frontend/functions/ui/nav_link.tsx

@@ -0,0 +1,44 @@
+import * as React from 'react'
+import { NavLink } from '@mantine/core'
+
+interface FnNavLinkProps {
+  label: string
+  description?: string
+  icon?: React.ReactNode
+  active?: boolean
+  onClick?: React.MouseEventHandler<HTMLButtonElement>
+  href?: string
+  children?: React.ReactNode
+  opened?: boolean
+  defaultOpened?: boolean
+}
+
+function FnNavLink({
+  label,
+  description,
+  icon,
+  active,
+  onClick,
+  href,
+  children,
+  opened,
+  defaultOpened,
+}: FnNavLinkProps) {
+  return (
+    <NavLink
+      label={label}
+      description={description}
+      leftSection={icon}
+      active={active}
+      onClick={onClick}
+      href={href}
+      opened={opened}
+      defaultOpened={defaultOpened}
+    >
+      {children}
+    </NavLink>
+  )
+}
+
+export { FnNavLink }
+export type { FnNavLinkProps }

frontend/functions/ui/number_input.md

@@ -0,0 +1,92 @@
+---
+name: number_input
+kind: component
+lang: ts
+domain: ui
+version: "1.0.0"
+purity: impure
+signature: "FnNumberInput(props: FnNumberInputProps): JSX.Element"
+description: "Input numerico con min/max, step, prefijo y sufijo. Wrapper sobre Mantine NumberInput."
+tags: [mantine, input, number, form, component, ui]
+uses_functions: []
+uses_types: []
+returns: []
+returns_optional: false
+error_type: ""
+imports: ["@mantine/core"]
+framework: react
+props:
+  - name: value
+    type: "number | string"
+    required: false
+    description: "Valor actual del input"
+  - name: onChange
+    type: "(value: number | string) => void"
+    required: false
+    description: "Callback cuando cambia el valor"
+  - name: min
+    type: "number"
+    required: false
+    description: "Valor minimo permitido"
+  - name: max
+    type: "number"
+    required: false
+    description: "Valor maximo permitido"
+  - name: step
+    type: "number"
+    required: false
+    description: "Incremento/decremento por click"
+  - name: label
+    type: "string"
+    required: false
+    description: "Etiqueta del input"
+  - name: description
+    type: "string"
+    required: false
+    description: "Texto descriptivo debajo del input"
+  - name: error
+    type: "string"
+    required: false
+    description: "Mensaje de error"
+  - name: placeholder
+    type: "string"
+    required: false
+    description: "Placeholder del input"
+  - name: prefix
+    type: "string"
+    required: false
+    description: "Texto prefijo dentro del input (ej: $)"
+  - name: suffix
+    type: "string"
+    required: false
+    description: "Texto sufijo dentro del input (ej: kg)"
+output: "Input numerico con controles de incremento, validacion y decoradores de texto"
+tested: false
+tests: []
+test_file_path: ""
+file_path: "frontend/functions/ui/number_input.tsx"
+emits: []
+has_state: false
+variant: []
+---
+
+## Ejemplo
+
+```tsx
+import { FnNumberInput } from '@fn_library'
+
+<FnNumberInput
+  label="Precio"
+  value={price}
+  onChange={setPrice}
+  min={0}
+  max={10000}
+  step={0.01}
+  prefix="$"
+  description="Precio unitario en USD"
+/>
+```
+
+## Notas
+
+Wrapper sobre Mantine `NumberInput`. Soporta prefix/suffix para decorar el valor visualmente. Los controles de incremento/decremento respetan min/max/step.

frontend/functions/ui/number_input.tsx

@@ -0,0 +1,48 @@
+import { NumberInput } from '@mantine/core'
+
+interface FnNumberInputProps {
+  value?: number | string
+  onChange?: (value: number | string) => void
+  min?: number
+  max?: number
+  step?: number
+  label?: string
+  description?: string
+  error?: string
+  placeholder?: string
+  prefix?: string
+  suffix?: string
+}
+
+function FnNumberInput({
+  value,
+  onChange,
+  min,
+  max,
+  step,
+  label,
+  description,
+  error,
+  placeholder,
+  prefix,
+  suffix,
+}: FnNumberInputProps) {
+  return (
+    <NumberInput
+      value={value}
+      onChange={onChange}
+      min={min}
+      max={max}
+      step={step}
+      label={label}
+      description={description}
+      error={error}
+      placeholder={placeholder}
+      prefix={prefix}
+      suffix={suffix}
+    />
+  )
+}
+
+export { FnNumberInput }
+export type { FnNumberInputProps }

frontend/functions/ui/page_header.md

@@ -8,12 +8,12 @@ purity: impure
 signature: "PageHeader(props: PageHeaderProps): JSX.Element"
 description: "Cabecera de página con título, subtítulo, acciones, back button, tabs integrados, badge y modo sticky. Incluye SimplePageHeader."
 tags: [header, page, layout, navigation, component, ui]
-uses_functions: [cn_ts_core]
+uses_functions: []
 uses_types: []
 returns: []
 returns_optional: false
 error_type: ""
-imports: [react]
+imports: [react, "@mantine/core", "@tabler/icons-react"]
 output: "Componente PageHeader que renderiza cabecera de página con título, acciones, tabs integrados y modo sticky"
 tested: false
 tests: []