Migrate all components and pages to shadcn/ui with DataTable

Replace custom markup across all pages and components with shadcn/ui
primitives (Dialog, Sheet, Select, Card, Tabs, etc.). Add reusable
DataTable component powered by @tanstack/react-table with sortable
column headers and client-side pagination. Introduce TransactionList
with responsive mobile cards and desktop DataTable, dashboard section
customization (DashboardSection, SectionConfigDialog), and settings
API types.

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

backend/app/api/v1/endpoints/settings.py

@@ -0,0 +1,59 @@
+from datetime import datetime
+
+from fastapi import APIRouter, Depends
+from sqlmodel import Session, select
+
+from app.auth import get_current_user
+from app.db import get_session
+from app.models.models import UserSettings, UserSettingsRead, UserSettingsUpdate
+
+router = APIRouter(prefix="/settings", tags=["settings"])
+
+DEFAULT_SETTINGS = {
+    "dashboard": {
+        "sections": {
+            "crc_accounts": {"label": "CRC Accounts", "color": "primary", "cardColor": "primary", "visible": True, "order": 0, "expanded": False},
+            "usd_accounts": {"label": "USD Accounts", "color": "chart-1", "cardColor": "chart-1", "visible": True, "order": 1, "expanded": False},
+            "pension": {"label": "Pension", "color": "chart-2", "cardColor": "chart-2", "visible": True, "order": 2, "expanded": False},
+            "savings": {"label": "Savings", "color": "chart-3", "cardColor": "chart-3", "visible": True, "order": 3, "expanded": False},
+            "liabilities": {"label": "Liabilities", "color": "destructive", "cardColor": "destructive", "visible": True, "order": 4, "expanded": False},
+            "crypto": {"label": "Crypto", "color": "chart-4", "cardColor": "chart-4", "visible": True, "order": 5, "expanded": False},
+        }
+    }
+}
+
+
+@router.get("/", response_model=UserSettingsRead)
+def get_settings(
+    session: Session = Depends(get_session),
+    _user: str = Depends(get_current_user),
+):
+    settings = session.exec(
+        select(UserSettings).where(UserSettings.key == "default")
+    ).first()
+    if not settings:
+        settings = UserSettings(key="default", data=DEFAULT_SETTINGS)
+        session.add(settings)
+        session.commit()
+        session.refresh(settings)
+    return settings
+
+
+@router.patch("/", response_model=UserSettingsRead)
+def update_settings(
+    body: UserSettingsUpdate,
+    session: Session = Depends(get_session),
+    _user: str = Depends(get_current_user),
+):
+    settings = session.exec(
+        select(UserSettings).where(UserSettings.key == "default")
+    ).first()
+    if not settings:
+        settings = UserSettings(key="default", data=body.data)
+    else:
+        settings.data = body.data
+    settings.updated_at = datetime.utcnow()
+    session.add(settings)
+    session.commit()
+    session.refresh(settings)
+    return settings

backend/app/api/v1/router.py

@@ -7,6 +7,7 @@ from app.api.v1.endpoints import (
     categories,
     exchange_rate,
     import_transactions,
+    settings,
     tokens,
     transactions,
 )
@@ -20,3 +21,4 @@ api_router.include_router(import_transactions.router)
 api_router.include_router(exchange_rate.router)
 api_router.include_router(tokens.router)
 api_router.include_router(analytics.router)
+api_router.include_router(settings.router)

backend/app/models/models.py

@@ -2,6 +2,8 @@ import enum
 from datetime import datetime
 from typing import Optional
 
+from sqlalchemy import Column
+from sqlalchemy.dialects.postgresql import JSONB
 from sqlmodel import Field, Relationship, SQLModel
 
 
@@ -195,3 +197,26 @@ class APITokenRead(SQLModel):
     created_at: datetime
     expires_at: Optional[datetime]
     is_active: bool
+
+
+# --- User Settings ---
+
+
+class UserSettings(SQLModel, table=True):
+    id: Optional[int] = Field(default=None, primary_key=True)
+    key: str = Field(index=True, unique=True, default="default")
+    data: dict = Field(
+        default_factory=dict,
+        sa_column=Column(JSONB, nullable=False, server_default="{}"),
+    )
+    updated_at: datetime = Field(default_factory=datetime.utcnow)
+
+
+class UserSettingsRead(SQLModel):
+    key: str
+    data: dict
+    updated_at: datetime
+
+
+class UserSettingsUpdate(SQLModel):
+    data: dict

backend/app/services/exchange_rate.py

@@ -10,7 +10,17 @@ from app.models.models import ExchangeRate
 # BCCR indicators: 317 = buy, 318 = sell
 BCCR_URL = "https://gee.bccr.fi.cr/Indicadores/Suscripciones/WS/wsindicadoreseconomicos.asmx/ObtenerIndicadoresEconomicos"
 
+# Fallback APIs (no API key required, all support CRC)
+EXCHANGERATE_API_URL = "https://open.er-api.com/v6/latest/USD"
+CURRENCY_API_URL = "https://cdn.jsdelivr.net/npm/@fawazahmed0/currency-api@latest/v1/currencies/usd.json"
+CURRENCY_API_FALLBACK_URL = "https://latest.currency-api.pages.dev/v1/currencies/usd.json"
+FLOATRATES_URL = "https://www.floatrates.com/daily/usd.json"
+
+# Typical buy/sell spread for USD/CRC (~0.5% each side of mid-market)
+_SPREAD = 0.005
+
 _cache: dict[str, tuple[ExchangeRate, datetime]] = {}
+_last_known: ExchangeRate | None = None  # survives cache expiry — always holds the last successful rate
 CACHE_TTL = timedelta(hours=1)
 
 
@@ -29,10 +39,7 @@ def _fetch_bccr_rate(indicator: int, date_str: str) -> float | None:
         resp = httpx.get(BCCR_URL, params=params, timeout=10)
         resp.raise_for_status()
 
-        # Parse XML response
         root = ET.fromstring(resp.text)
-        # The value is in INGC011_DES_DATOS > NUM_VALOR
-        ns = {"": "http://ws.sdde.bccr.fi.cr"}
         for datos in root.iter():
             if datos.tag.endswith("NUM_VALOR"):
                 return float(datos.text.strip().replace(",", "."))
@@ -41,14 +48,92 @@ def _fetch_bccr_rate(indicator: int, date_str: str) -> float | None:
     return None
 
 
+def _fetch_bccr() -> tuple[float, float] | None:
+    """Try BCCR official API. Returns (buy, sell) or None."""
+    today = datetime.now().strftime("%d/%m/%Y")
+    buy = _fetch_bccr_rate(317, today)
+    sell = _fetch_bccr_rate(318, today)
+    if buy is not None and sell is not None:
+        return (buy, sell)
+    return None
+
+
+def _mid_to_buy_sell(mid: float) -> tuple[float, float]:
+    """Convert a mid-market rate to approximate buy/sell with a spread."""
+    return (mid * (1 - _SPREAD), mid * (1 + _SPREAD))
+
+
+def _fetch_exchangerate_api() -> tuple[float, float] | None:
+    """Try ExchangeRate-API (open.er-api.com). No key required."""
+    try:
+        resp = httpx.get(EXCHANGERATE_API_URL, timeout=10)
+        resp.raise_for_status()
+        data = resp.json()
+        if data.get("result") == "success":
+            crc = data["rates"].get("CRC")
+            if crc:
+                return _mid_to_buy_sell(float(crc))
+    except Exception:
+        pass
+    return None
+
+
+def _fetch_currency_api() -> tuple[float, float] | None:
+    """Try fawazahmed0/currency-api (CDN-hosted). No key required."""
+    for url in (CURRENCY_API_URL, CURRENCY_API_FALLBACK_URL):
+        try:
+            resp = httpx.get(url, timeout=10)
+            resp.raise_for_status()
+            data = resp.json()
+            crc = data.get("usd", {}).get("crc")
+            if crc:
+                return _mid_to_buy_sell(float(crc))
+        except Exception:
+            continue
+    return None
+
+
+def _fetch_floatrates() -> tuple[float, float] | None:
+    """Try FloatRates. No key required."""
+    try:
+        resp = httpx.get(FLOATRATES_URL, timeout=10)
+        resp.raise_for_status()
+        data = resp.json()
+        crc_data = data.get("crc")
+        if crc_data and "rate" in crc_data:
+            return _mid_to_buy_sell(float(crc_data["rate"]))
+    except Exception:
+        pass
+    return None
+
+
+def _fetch_rate_from_apis() -> tuple[float, float] | None:
+    """Try all sources in order: BCCR → ExchangeRate-API → currency-api → FloatRates."""
+    for fetcher in (_fetch_bccr, _fetch_exchangerate_api, _fetch_currency_api, _fetch_floatrates):
+        result = fetcher()
+        if result is not None:
+            return result
+    return None
+
+
+def _remember(rate: ExchangeRate) -> ExchangeRate:
+    """Store rate in both TTL cache and permanent last-known holder."""
+    global _last_known
+    _cache["current"] = (rate, datetime.utcnow())
+    _last_known = rate
+    return rate
+
+
 def get_current_rate(session: Session) -> ExchangeRate | None:
-    """Get current USD/CRC rate. Uses in-memory cache + DB fallback."""
-    # Check memory cache
+    """Get current USD/CRC rate. Never returns None once a rate has been fetched."""
+    global _last_known
+
+    # 1. Fresh memory cache (< 1 hour)
     cached = _cache.get("current")
     if cached and datetime.utcnow() - cached[1] < CACHE_TTL:
         return cached[0]
 
-    # Check DB for recent rate
+    # 2. Fresh DB rate (< 1 hour)
     one_hour_ago = datetime.utcnow() - CACHE_TTL
     db_rate = session.exec(
         select(ExchangeRate)
@@ -56,31 +141,30 @@ def get_current_rate(session: Session) -> ExchangeRate | None:
         .order_by(col(ExchangeRate.fetched_at).desc())
     ).first()
     if db_rate:
-        _cache["current"] = (db_rate, datetime.utcnow())
-        return db_rate
+        return _remember(db_rate)
 
-    # Fetch from BCCR
-    today = datetime.now().strftime("%d/%m/%Y")
-    buy = _fetch_bccr_rate(317, today)
-    sell = _fetch_bccr_rate(318, today)
-
-    if buy is None or sell is None:
-        # Fallback: return most recent DB rate regardless of age
-        fallback = session.exec(
-            select(ExchangeRate).order_by(col(ExchangeRate.fetched_at).desc())
-        ).first()
-        return fallback
-
-    rate = ExchangeRate(
-        date=datetime.utcnow(),
-        buy_rate=buy,
-        sell_rate=sell,
-    )
+    # 3. Try all API sources
+    result = _fetch_rate_from_apis()
+    if result is not None:
+        buy, sell = result
+        rate = ExchangeRate(date=datetime.utcnow(), buy_rate=buy, sell_rate=sell)
         session.add(rate)
         session.commit()
         session.refresh(rate)
-    _cache["current"] = (rate, datetime.utcnow())
-    return rate
+        return _remember(rate)
+
+    # 4. Stale DB rate (any age)
+    fallback = session.exec(
+        select(ExchangeRate).order_by(col(ExchangeRate.fetched_at).desc())
+    ).first()
+    if fallback:
+        return _remember(fallback)
+
+    # 5. Last known in-memory rate (survives even if DB is empty)
+    if _last_known:
+        return _last_known
+
+    return None
 
 
 def get_rate_history(session: Session, days: int = 30) -> list[ExchangeRate]:

frontend/components.json

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

frontend/package.json

@@ -9,12 +9,21 @@
     "preview": "vite preview"
   },
   "dependencies": {
+    "@base-ui/react": "^1.3.0",
+    "@fontsource-variable/ibm-plex-sans": "^5.2.8",
+    "@fontsource-variable/noto-sans": "^5.2.10",
+    "@tanstack/react-table": "^8.21.3",
     "axios": "^1.13.6",
+    "class-variance-authority": "^0.7.1",
+    "clsx": "^2.1.1",
     "lucide-react": "^0.562.0",
     "react": "^19.2.0",
     "react-dom": "^19.2.0",
     "react-router-dom": "^7.12.0",
-    "recharts": "^3.8.0"
+    "recharts": "^2.15.4",
+    "shadcn": "^4.1.0",
+    "tailwind-merge": "^3.5.0",
+    "tw-animate-css": "^1.4.0"
   },
   "devDependencies": {
     "@tailwindcss/vite": "^4.1.18",

frontend/src/api.ts

@@ -56,6 +56,34 @@ export interface ImportResult {
   errors: string[];
 }
 
+// --- User Settings ---
+
+export interface SectionSettings {
+  label: string;
+  color: string;
+  cardColor: string;
+  visible: boolean;
+  order: number;
+  expanded: boolean;
+}
+
+export interface DashboardSettings {
+  sections: Record<string, SectionSettings>;
+}
+
+export interface UserSettingsData {
+  dashboard: DashboardSettings;
+}
+
+export interface UserSettingsResponse {
+  key: string;
+  data: UserSettingsData;
+  updated_at: string;
+}
+
+export const getSettings = () => api.get<UserSettingsResponse>('/settings/');
+export const updateSettings = (data: UserSettingsData) => api.patch<UserSettingsResponse>('/settings/', { data });
+
 export interface Transaction {
   id: number;
   amount: number;

frontend/src/components/BillingCycleSelector.tsx

@@ -1,6 +1,13 @@
 import { useEffect, useState } from 'react';
-import { Calendar, ChevronDown } from 'lucide-react';
+import { Calendar } from 'lucide-react';
 import api from '../api';
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from '@/components/ui/select';
 
 export interface CycleOption {
   year: number;
@@ -22,33 +29,34 @@ export default function BillingCycleSelector({ value, onChange }: Props) {
     api.get('/transactions/cycles').then((r) => setCycles(r.data));
   }, []);
 
-  const selectedKey = value ? `${value.year}-${value.month}` : '';
+  const selectedKey = value ? `${value.year}-${value.month}` : 'all';
 
   return (
     <div className="flex items-center gap-2">
-      <Calendar className="w-4 h-4 text-text-muted" />
-      <div className="relative">
-        <select
+      <Calendar className="w-4 h-4 text-muted-foreground" />
+      <Select
         value={selectedKey}
-          onChange={(e) => {
-            if (!e.target.value) {
+        onValueChange={(val) => {
+          if (val === 'all') {
             onChange(null);
           } else {
-              const [y, m] = e.target.value.split('-').map(Number);
+            const [y, m] = val.split('-').map(Number);
             onChange({ year: y, month: m });
           }
         }}
-          className="appearance-none bg-input-bg border border-border rounded-lg pl-3 pr-9 py-2 text-sm text-text-primary focus:outline-none focus:border-[#606C38]/50 transition-colors"
       >
-          <option value="">All time</option>
+        <SelectTrigger className="w-[180px]">
+          <SelectValue />
+        </SelectTrigger>
+        <SelectContent>
+          <SelectItem value="all">All time</SelectItem>
           {cycles.map((c) => (
-            <option key={`${c.year}-${c.month}`} value={`${c.year}-${c.month}`}>
+            <SelectItem key={`${c.year}-${c.month}`} value={`${c.year}-${c.month}`}>
               {c.label} ({c.count})
-            </option>
+            </SelectItem>
           ))}
-        </select>
-        <ChevronDown className="absolute right-2.5 top-1/2 -translate-y-1/2 w-4 h-4 text-text-muted pointer-events-none" />
-      </div>
+        </SelectContent>
+      </Select>
     </div>
   );
 }

frontend/src/components/ConfirmDialog.tsx

@@ -1,4 +1,15 @@
-import { AlertTriangle, X } from 'lucide-react';
+import { AlertTriangle } from 'lucide-react';
+import {
+  AlertDialog,
+  AlertDialogContent,
+  AlertDialogHeader,
+  AlertDialogFooter,
+  AlertDialogTitle,
+  AlertDialogDescription,
+  AlertDialogAction,
+  AlertDialogCancel,
+  AlertDialogMedia,
+} from '@/components/ui/alert-dialog';
 
 interface Props {
   title: string;
@@ -11,45 +22,26 @@ interface Props {
 
 export default function ConfirmDialog({ title, message, confirmLabel = 'Delete', onConfirm, onCancel, loading }: Props) {
   return (
-    <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/60 backdrop-blur-sm p-4" onClick={onCancel}>
-      <div
-        className="bg-surface border border-border rounded-xl w-full max-w-sm animate-fade-in"
-        onClick={(e) => e.stopPropagation()}
-      >
-        <div className="flex items-center justify-between px-5 py-4 border-b border-border">
-          <h3 className="font-semibold">{title}</h3>
-          <button onClick={onCancel} className="text-text-muted hover:text-text-primary transition-colors">
-            <X className="w-5 h-5" />
-          </button>
-        </div>
-
-        <div className="px-5 py-5">
-          <div className="flex gap-3 items-start">
-            <div className="w-10 h-10 rounded-full bg-red-500/10 flex items-center justify-center flex-shrink-0">
-              <AlertTriangle className="w-5 h-5 text-red-500 dark:text-red-400" />
-            </div>
-            <p className="text-sm text-text-secondary pt-2">{message}</p>
-          </div>
-        </div>
-
-        <div className="flex gap-3 px-5 pb-5">
-          <button
-            type="button"
-            onClick={onCancel}
-            className="flex-1 px-4 py-2.5 rounded-lg text-sm font-medium text-text-secondary border border-border hover:bg-surface-hover transition-colors"
-          >
-            Cancel
-          </button>
-          <button
-            type="button"
+    <AlertDialog open onOpenChange={(open) => { if (!open) onCancel(); }}>
+      <AlertDialogContent>
+        <AlertDialogHeader>
+          <AlertDialogMedia className="bg-destructive/10">
+            <AlertTriangle className="text-destructive" />
+          </AlertDialogMedia>
+          <AlertDialogTitle>{title}</AlertDialogTitle>
+          <AlertDialogDescription>{message}</AlertDialogDescription>
+        </AlertDialogHeader>
+        <AlertDialogFooter>
+          <AlertDialogCancel onClick={onCancel}>Cancel</AlertDialogCancel>
+          <AlertDialogAction
+            variant="destructive"
             onClick={onConfirm}
             disabled={loading}
-            className="flex-1 px-4 py-2.5 rounded-lg text-sm font-medium bg-red-500 hover:bg-red-600 text-white transition-colors disabled:opacity-50"
           >
             {loading ? 'Deleting...' : confirmLabel}
-          </button>
-        </div>
-      </div>
-    </div>
+          </AlertDialogAction>
+        </AlertDialogFooter>
+      </AlertDialogContent>
+    </AlertDialog>
   );
 }

frontend/src/components/DashboardSection.tsx

@@ -0,0 +1,76 @@
+import { Settings } from 'lucide-react';
+import type { SectionSettings } from '../api';
+import { formatAmount } from '@/lib/format';
+import { Card } from '@/components/ui/card';
+import {
+  Accordion,
+  AccordionItem,
+  AccordionTrigger,
+  AccordionContent,
+} from '@/components/ui/accordion';
+import { getColorClasses } from '@/lib/colors';
+import { cn } from '@/lib/utils';
+
+interface Props {
+  sectionId: string;
+  settings: SectionSettings;
+  total?: number;
+  totalCurrency?: string;
+  onToggleExpanded: (expanded: boolean) => void;
+  onOpenConfig: () => void;
+  children: React.ReactNode;
+}
+
+export default function DashboardSection({
+  sectionId,
+  settings,
+  total,
+  totalCurrency,
+  onToggleExpanded,
+  onOpenConfig,
+  children,
+}: Props) {
+  const colors = getColorClasses(settings.color);
+
+  return (
+    <Card className={cn('relative overflow-hidden border-l-4', colors.borderLeft)}>
+      {/* Settings icon — outside accordion trigger to avoid button-in-button */}
+      <button
+        onClick={onOpenConfig}
+        className="absolute top-2.5 right-3 z-10 p-1 rounded text-muted-foreground hover:text-foreground hover:bg-muted/50 transition-colors cursor-pointer"
+        title="Section settings"
+        aria-label="Section settings"
+      >
+        <Settings className="w-3.5 h-3.5" />
+      </button>
+
+      <Accordion
+        value={settings.expanded ? [sectionId] : []}
+        onValueChange={(value: string[]) => onToggleExpanded(value.includes(sectionId))}
+      >
+        <AccordionItem value={sectionId} className="border-none">
+          <AccordionTrigger
+            className="px-4 py-3 hover:no-underline cursor-pointer"
+            aria-label={`Expand ${settings.label}`}
+          >
+            <div className="flex items-center justify-between w-full pr-8">
+              <span className="text-sm font-semibold text-foreground">
+                {settings.label}
+              </span>
+              {total != null && totalCurrency && (
+                <span className="text-sm font-bold font-mono text-foreground">
+                  {formatAmount(total, totalCurrency)}
+                </span>
+              )}
+            </div>
+          </AccordionTrigger>
+          <AccordionContent>
+            <div className="divide-y divide-border mx-4 mb-4 rounded-lg overflow-hidden">
+              {children}
+            </div>
+          </AccordionContent>
+        </AccordionItem>
+      </Accordion>
+    </Card>
+  );
+}

frontend/src/components/Layout.tsx

@@ -7,13 +7,22 @@ import {
   LogOut,
   Wallet,
   Menu,
-  X,
   Sun,
   Moon,
 } from 'lucide-react';
 import { useState } from 'react';
 import { useAuth } from '../AuthContext';
 import { useTheme } from '../ThemeContext';
+import { Button } from '@/components/ui/button';
+import {
+  Sheet,
+  SheetContent,
+  SheetHeader,
+  SheetTitle,
+  SheetClose,
+} from '@/components/ui/sheet';
+import { Separator } from '@/components/ui/separator';
+import { cn } from '@/lib/utils';
 
 const navItems = [
   { to: '/', icon: LayoutDashboard, label: 'Dashboard' },
@@ -34,16 +43,16 @@ export default function Layout() {
   };
 
   return (
-    <div className="min-h-screen bg-surface text-text-primary">
+    <div className="min-h-screen bg-background text-foreground">
       {/* Top bar */}
-      <header className="border-b border-border backdrop-blur-sm sticky top-0 z-50 bg-surface/90">
+      <header className="border-b border-border backdrop-blur-sm sticky top-0 z-50 bg-background/90">
         <div className="max-w-7xl mx-auto px-4 sm:px-6 py-3 flex items-center justify-between">
           <div className="flex items-center gap-2.5">
-            <div className="w-8 h-8 rounded-lg bg-gradient-to-br from-[#606C38] to-[#DDA15E] flex items-center justify-center">
-              <Wallet className="w-4 h-4 text-[#FEFAE0]" strokeWidth={2.5} />
+            <div className="w-8 h-8 rounded-lg bg-primary flex items-center justify-center">
+              <Wallet className="w-4 h-4 text-primary-foreground" strokeWidth={2.5} />
             </div>
-            <span className="text-lg font-bold tracking-tight hidden sm:inline">
-              Wealthy<span className="text-[#606C38] dark:text-[#7a8a4a]">Smart</span>
+            <span className="text-lg font-bold tracking-tight hidden sm:inline font-heading">
+              Wealthy<span className="text-primary">Smart</span>
             </span>
           </div>
 
@@ -55,11 +64,12 @@ export default function Layout() {
                 to={to}
                 end={to === '/'}
                 className={({ isActive }) =>
-                  `flex items-center gap-2 px-4 py-2 rounded-lg text-sm font-medium transition-colors ${
+                  cn(
+                    'flex items-center gap-2 px-4 py-2 rounded-lg text-sm font-medium transition-colors',
                     isActive
-                      ? 'bg-[#606C38]/10 text-[#606C38] dark:text-[#7a8a4a]'
-                      : 'text-text-muted hover:text-text-primary hover:bg-surface-hover'
-                  }`
+                      ? 'bg-primary/10 text-primary'
+                      : 'text-muted-foreground hover:text-foreground hover:bg-muted'
+                  )
                 }
               >
                 <Icon className="w-4 h-4" />
@@ -68,59 +78,80 @@ export default function Layout() {
             ))}
           </nav>
 
-          <div className="flex items-center gap-2">
-            <button
-              onClick={toggleTheme}
-              className="p-2 rounded-lg text-text-muted hover:text-text-primary hover:bg-surface-hover transition-colors"
-            >
+          <div className="flex items-center gap-1">
+            <Button variant="ghost" size="icon" onClick={toggleTheme} title="Toggle theme" aria-label="Toggle theme">
               {theme === 'dark' ? <Sun className="w-4 h-4" /> : <Moon className="w-4 h-4" />}
-            </button>
-            <button
+            </Button>
+            <Button
+              variant="ghost"
+              size="icon"
               onClick={handleLogout}
-              className="hidden md:flex items-center gap-2 text-text-muted hover:text-text-secondary text-sm transition-colors"
+              title="Sign out"
+              aria-label="Sign out"
+              className="hidden md:inline-flex"
             >
               <LogOut className="w-4 h-4" />
-            </button>
-            <button
-              onClick={() => setMobileOpen(!mobileOpen)}
-              className="md:hidden text-text-muted"
+            </Button>
+            <Button
+              variant="ghost"
+              size="icon"
+              onClick={() => setMobileOpen(true)}
+              title="Open menu"
+              aria-label="Open menu"
+              className="md:hidden"
             >
-              {mobileOpen ? <X className="w-5 h-5" /> : <Menu className="w-5 h-5" />}
-            </button>
+              <Menu className="w-5 h-5" />
+            </Button>
           </div>
         </div>
+      </header>
 
-        {/* Mobile nav */}
-        {mobileOpen && (
-          <div className="md:hidden border-t border-border px-4 pb-4 space-y-1">
+      {/* Mobile nav sheet */}
+      <Sheet open={mobileOpen} onOpenChange={setMobileOpen}>
+        <SheetContent side="left" className="p-0">
+          <SheetHeader className="p-4">
+            <SheetTitle className="flex items-center gap-2.5">
+              <div className="w-8 h-8 rounded-lg bg-primary flex items-center justify-center">
+                <Wallet className="w-4 h-4 text-primary-foreground" strokeWidth={2.5} />
+              </div>
+              <span className="font-heading">
+                Wealthy<span className="text-primary">Smart</span>
+              </span>
+            </SheetTitle>
+          </SheetHeader>
+          <Separator />
+          <nav className="flex flex-col gap-1 p-4">
             {navItems.map(({ to, icon: Icon, label }) => (
+              <SheetClose key={to} render={<span />}>
                 <NavLink
-                key={to}
                   to={to}
                   end={to === '/'}
                   onClick={() => setMobileOpen(false)}
                   className={({ isActive }) =>
-                  `flex items-center gap-3 px-4 py-3 rounded-lg text-sm font-medium transition-colors ${
+                    cn(
+                      'flex items-center gap-3 px-4 py-3 rounded-lg text-sm font-medium transition-colors',
                       isActive
-                      ? 'bg-[#606C38]/10 text-[#606C38] dark:text-[#7a8a4a]'
-                      : 'text-text-muted hover:text-text-primary hover:bg-surface-hover'
-                  }`
+                        ? 'bg-primary/10 text-primary'
+                        : 'text-muted-foreground hover:text-foreground hover:bg-muted'
+                    )
                   }
                 >
                   <Icon className="w-4 h-4" />
                   {label}
                 </NavLink>
+              </SheetClose>
             ))}
+            <Separator className="my-2" />
             <button
               onClick={handleLogout}
-              className="flex items-center gap-3 px-4 py-3 rounded-lg text-sm font-medium text-text-muted hover:text-text-primary hover:bg-surface-hover w-full"
+              className="flex items-center gap-3 px-4 py-3 rounded-lg text-sm font-medium text-muted-foreground hover:text-foreground hover:bg-muted w-full"
             >
               <LogOut className="w-4 h-4" />
               Sign out
             </button>
-          </div>
-        )}
-      </header>
+          </nav>
+        </SheetContent>
+      </Sheet>
 
       <main className="max-w-7xl mx-auto px-4 sm:px-6 py-6">
         <Outlet />

frontend/src/components/PasteImportModal.tsx

@@ -1,6 +1,24 @@
 import { useState } from 'react';
-import { X, ClipboardPaste, CheckCircle, AlertTriangle } from 'lucide-react';
+import { ClipboardPaste, CheckCircle, AlertTriangle } from 'lucide-react';
 import api, { type ImportResult } from '../api';
+import { Button } from '@/components/ui/button';
+import { Label } from '@/components/ui/label';
+import { Textarea } from '@/components/ui/textarea';
+import {
+  Dialog,
+  DialogContent,
+  DialogHeader,
+  DialogTitle,
+  DialogFooter,
+} from '@/components/ui/dialog';
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from '@/components/ui/select';
+import { Alert, AlertDescription, AlertTitle } from '@/components/ui/alert';
 
 interface Props {
   onClose: () => void;
@@ -28,114 +46,100 @@ export default function PasteImportModal({ onClose, onImported }: Props) {
     }
   };
 
-  const inputClass =
-    'w-full bg-input-bg border border-border rounded-lg px-3 py-2.5 text-sm text-text-primary placeholder-text-faint focus:outline-none focus:border-[#606C38]/50 focus:ring-1 focus:ring-[#606C38]/20 transition-colors';
-  const labelClass = 'block text-xs font-medium text-text-secondary mb-1 uppercase tracking-wider';
-
   return (
-    <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/60 backdrop-blur-sm p-4">
-      <div className="bg-surface border border-border rounded-xl w-full max-w-2xl max-h-[90vh] overflow-y-auto">
-        <div className="flex items-center justify-between px-5 py-4 border-b border-border">
-          <div className="flex items-center gap-2">
-            <ClipboardPaste className="w-4 h-4 text-[#606C38] dark:text-[#7a8a4a]" />
-            <h3 className="font-semibold">Import Bank Statement</h3>
-          </div>
-          <button onClick={onClose} className="text-text-muted hover:text-text-primary transition-colors">
-            <X className="w-5 h-5" />
-          </button>
-        </div>
+    <Dialog open onOpenChange={(open) => { if (!open) onClose(); }}>
+      <DialogContent className="sm:max-w-2xl max-h-[90vh] overflow-y-auto">
+        <DialogHeader>
+          <DialogTitle className="flex items-center gap-2">
+            <ClipboardPaste className="w-4 h-4 text-primary" />
+            Import Bank Statement
+          </DialogTitle>
+        </DialogHeader>
 
-        <div className="p-5 space-y-4">
         {!result ? (
-            <>
+          <div className="space-y-4">
             <div className="grid grid-cols-2 gap-4">
-                <div>
-                  <label className={labelClass}>Bank</label>
-                  <select className={inputClass} value={bank} onChange={(e) => setBank(e.target.value)}>
-                    <option value="BAC">BAC</option>
-                    <option value="BCR">BCR</option>
-                    <option value="DAVIVIENDA">Davivienda</option>
-                  </select>
+              <div className="space-y-2">
+                <Label>Bank</Label>
+                <Select value={bank} onValueChange={setBank}>
+                  <SelectTrigger className="w-full">
+                    <SelectValue />
+                  </SelectTrigger>
+                  <SelectContent>
+                    <SelectItem value="BAC">BAC</SelectItem>
+                    <SelectItem value="BCR">BCR</SelectItem>
+                    <SelectItem value="DAVIVIENDA">Davivienda</SelectItem>
+                  </SelectContent>
+                </Select>
               </div>
-                <div>
-                  <label className={labelClass}>Source</label>
-                  <select className={inputClass} value={source} onChange={(e) => setSource(e.target.value)}>
-                    <option value="CREDIT_CARD">Credit Card</option>
-                    <option value="CASH">Cash</option>
-                    <option value="TRANSFER">Transfer</option>
-                  </select>
+              <div className="space-y-2">
+                <Label>Source</Label>
+                <Select value={source} onValueChange={setSource}>
+                  <SelectTrigger className="w-full">
+                    <SelectValue />
+                  </SelectTrigger>
+                  <SelectContent>
+                    <SelectItem value="CREDIT_CARD">Credit Card</SelectItem>
+                    <SelectItem value="CASH">Cash</SelectItem>
+                    <SelectItem value="TRANSFER">Transfer</SelectItem>
+                  </SelectContent>
+                </Select>
               </div>
             </div>
 
-              <div>
-                <label className={labelClass}>Statement Text</label>
-                <textarea
-                  className={`${inputClass} h-48 font-mono text-xs resize-y`}
+            <div className="space-y-2">
+              <Label>Statement Text</Label>
+              <Textarea
+                className="h-48 font-mono text-xs resize-y"
                 value={text}
                 onChange={(e) => setText(e.target.value)}
                 placeholder={`Paste bank statement lines here...\n\nFormat: DD/MM/YYYY\tMERCHANT\\CITY\\COUNTRY\tAMOUNT CRC`}
               />
-                <p className="text-xs text-text-faint mt-1">
+              <p className="text-xs text-muted-foreground">
                 One transaction per line. Tab-separated columns.
               </p>
             </div>
 
-              <div className="flex gap-3 pt-2">
-                <button
-                  type="button"
-                  onClick={onClose}
-                  className="flex-1 px-4 py-2.5 rounded-lg text-sm font-medium text-text-secondary border border-border hover:bg-surface-hover transition-colors"
-                >
+            <DialogFooter>
+              <Button variant="outline" onClick={onClose}>
                 Cancel
-                </button>
-                <button
-                  onClick={handleImport}
-                  disabled={importing || !text.trim()}
-                  className="flex-1 px-4 py-2.5 rounded-lg text-sm font-medium bg-[#606C38] hover:bg-[#7a8a4a] text-white dark:text-[#FEFAE0] transition-colors disabled:opacity-50"
-                >
+              </Button>
+              <Button onClick={handleImport} disabled={importing || !text.trim()}>
                 {importing ? 'Importing...' : 'Import'}
-                </button>
+              </Button>
+            </DialogFooter>
           </div>
-            </>
         ) : (
           <div className="space-y-4">
-              <div className="flex items-center gap-3 p-4 bg-[#606C38]/10 border border-[#606C38]/20 rounded-lg">
-                <CheckCircle className="w-5 h-5 text-[#606C38] dark:text-[#7a8a4a] flex-shrink-0" />
-                <div>
-                  <p className="font-medium text-[#606C38] dark:text-[#7a8a4a]">Import Complete</p>
-                  <p className="text-sm text-text-secondary mt-1">
+            <Alert>
+              <CheckCircle className="h-4 w-4 text-primary" />
+              <AlertTitle className="text-primary">Import Complete</AlertTitle>
+              <AlertDescription>
                 {result.imported} imported
                 {result.duplicates > 0 && ` · ${result.duplicates} duplicates skipped`}
-                  </p>
-                </div>
-              </div>
+              </AlertDescription>
+            </Alert>
 
             {result.errors.length > 0 && (
-                <div className="p-4 bg-amber-500/10 border border-amber-500/20 rounded-lg">
-                  <div className="flex items-center gap-2 mb-2">
-                    <AlertTriangle className="w-4 h-4 text-amber-500 dark:text-amber-400" />
-                    <span className="text-sm font-medium text-amber-600 dark:text-amber-400">
-                      {result.errors.length} errors
-                    </span>
-                  </div>
-                  <ul className="text-xs text-text-secondary space-y-1 font-mono max-h-32 overflow-y-auto">
+              <Alert variant="destructive">
+                <AlertTriangle className="h-4 w-4" />
+                <AlertTitle>{result.errors.length} errors</AlertTitle>
+                <AlertDescription>
+                  <ul className="text-xs font-mono max-h-32 overflow-y-auto space-y-1 mt-1">
                     {result.errors.map((err, i) => (
                       <li key={i}>{err}</li>
                     ))}
                   </ul>
-                </div>
+                </AlertDescription>
+              </Alert>
             )}
 
-              <button
-                onClick={onClose}
-                className="w-full px-4 py-2.5 rounded-lg text-sm font-medium bg-[#606C38] hover:bg-[#7a8a4a] text-white dark:text-[#FEFAE0] transition-colors"
-              >
+            <Button onClick={onClose} className="w-full">
               Done
-              </button>
+            </Button>
           </div>
         )}
-        </div>
-      </div>
-    </div>
+      </DialogContent>
+    </Dialog>
   );
 }

frontend/src/components/SectionConfigDialog.tsx

@@ -0,0 +1,137 @@
+import { useState } from 'react';
+import type { SectionSettings } from '../api';
+import { Button } from '@/components/ui/button';
+import { Input } from '@/components/ui/input';
+import { Label } from '@/components/ui/label';
+import {
+  Dialog,
+  DialogContent,
+  DialogHeader,
+  DialogTitle,
+  DialogFooter,
+} from '@/components/ui/dialog';
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from '@/components/ui/select';
+import { COLOR_OPTIONS, getColorClasses } from '@/lib/colors';
+import { cn } from '@/lib/utils';
+
+interface Props {
+  sectionId: string;
+  settings: SectionSettings;
+  open: boolean;
+  onOpenChange: (open: boolean) => void;
+  onSave: (sectionId: string, updated: Partial<SectionSettings>) => void;
+}
+
+function ColorSwatch({ color }: { color: string }) {
+  const classes = getColorClasses(color);
+  return (
+    <span className="flex items-center gap-2">
+      <span className={cn('w-3 h-3 rounded-full', classes.bg, classes.ring, 'ring-1')} />
+      {color}
+    </span>
+  );
+}
+
+export default function SectionConfigDialog({ sectionId, settings, open, onOpenChange, onSave }: Props) {
+  const [label, setLabel] = useState(settings.label);
+  const [color, setColor] = useState(settings.color);
+  const [cardColor, setCardColor] = useState(settings.cardColor);
+  const [visible, setVisible] = useState(settings.visible);
+  const [order, setOrder] = useState(String(settings.order));
+
+  const handleSave = () => {
+    onSave(sectionId, {
+      label,
+      color,
+      cardColor,
+      visible,
+      order: parseInt(order) || 0,
+    });
+    onOpenChange(false);
+  };
+
+  return (
+    <Dialog open={open} onOpenChange={onOpenChange}>
+      <DialogContent className="sm:max-w-md">
+        <DialogHeader>
+          <DialogTitle>Configure Section</DialogTitle>
+        </DialogHeader>
+
+        <div className="space-y-4">
+          <div className="space-y-2">
+            <Label>Label</Label>
+            <Input value={label} onChange={(e) => setLabel(e.target.value)} />
+          </div>
+
+          <div className="space-y-2">
+            <Label>Section Color</Label>
+            <Select value={color} onValueChange={setColor}>
+              <SelectTrigger className="w-full">
+                <SelectValue />
+              </SelectTrigger>
+              <SelectContent>
+                {COLOR_OPTIONS.map((c) => (
+                  <SelectItem key={c} value={c}>
+                    <ColorSwatch color={c} />
+                  </SelectItem>
+                ))}
+              </SelectContent>
+            </Select>
+          </div>
+
+          <div className="space-y-2">
+            <Label>Card Color</Label>
+            <Select value={cardColor} onValueChange={setCardColor}>
+              <SelectTrigger className="w-full">
+                <SelectValue />
+              </SelectTrigger>
+              <SelectContent>
+                {COLOR_OPTIONS.map((c) => (
+                  <SelectItem key={c} value={c}>
+                    <ColorSwatch color={c} />
+                  </SelectItem>
+                ))}
+              </SelectContent>
+            </Select>
+          </div>
+
+          <div className="flex items-center gap-3">
+            <Label htmlFor={`visible-${sectionId}`}>Visible</Label>
+            <input
+              id={`visible-${sectionId}`}
+              type="checkbox"
+              checked={visible}
+              onChange={(e) => setVisible(e.target.checked)}
+              className="h-4 w-4 rounded border-input accent-primary cursor-pointer"
+            />
+          </div>
+
+          <div className="space-y-2">
+            <Label>Order</Label>
+            <Input
+              type="number"
+              min="0"
+              max="10"
+              value={order}
+              onChange={(e) => setOrder(e.target.value)}
+              className="w-20"
+            />
+          </div>
+        </div>
+
+        <DialogFooter>
+          <Button variant="outline" onClick={() => onOpenChange(false)}>
+            Cancel
+          </Button>
+          <Button onClick={handleSave}>Save</Button>
+        </DialogFooter>
+      </DialogContent>
+    </Dialog>
+  );
+}

frontend/src/components/TransactionList.tsx

@@ -0,0 +1,195 @@
+import { useState, useMemo } from 'react';
+import {
+  Plus,
+  Search,
+  Pencil,
+  Trash2,
+  TrendingUp,
+  TrendingDown,
+  ArrowLeftRight,
+} from 'lucide-react';
+
+import api, { type Transaction } from '../api';
+import TransactionModal from './TransactionModal';
+import ConfirmDialog from './ConfirmDialog';
+import { Button } from '@/components/ui/button';
+import { Input } from '@/components/ui/input';
+import { Card, CardContent } from '@/components/ui/card';
+import { DataTable } from '@/components/ui/data-table';
+import { getTransactionColumns } from '@/components/transactions/transaction-columns';
+import { formatAmount } from '@/lib/format';
+import { cn } from '@/lib/utils';
+
+export interface TransactionListProps {
+  transactions: Transaction[];
+  loading: boolean;
+  source: 'CREDIT_CARD' | 'CASH' | 'TRANSFER';
+  search: string;
+  onSearchChange: (value: string) => void;
+  onRefresh: () => void;
+  emptyIcon?: React.ReactNode;
+  emptyMessage?: string;
+  showCategory?: boolean;
+  addLabel?: string;
+}
+
+export default function TransactionList({
+  transactions,
+  loading,
+  source,
+  search,
+  onSearchChange,
+  onRefresh,
+  emptyIcon,
+  emptyMessage = 'No transactions found',
+  showCategory = true,
+  addLabel = 'Add Transaction',
+}: TransactionListProps) {
+  const [modalOpen, setModalOpen] = useState(false);
+  const [editing, setEditing] = useState<Transaction | null>(null);
+  const [deleteId, setDeleteId] = useState<number | null>(null);
+  const [deleting, setDeleting] = useState(false);
+
+  const handleEdit = (tx: Transaction) => {
+    setEditing(tx);
+    setModalOpen(true);
+  };
+
+  const handleDelete = async () => {
+    if (deleteId === null) return;
+    setDeleting(true);
+    try {
+      await api.delete(`/transactions/${deleteId}`);
+      setDeleteId(null);
+      onRefresh();
+    } finally {
+      setDeleting(false);
+    }
+  };
+
+  const columns = useMemo(
+    () => getTransactionColumns({ showCategory, onEdit: handleEdit, onDelete: (id) => setDeleteId(id) }),
+    [showCategory],
+  );
+
+  const empty = transactions.length === 0 && !loading;
+
+  return (
+    <>
+      {/* Search + Add */}
+      <div className="flex items-center gap-3">
+        <div className="relative flex-1 max-w-sm">
+          <Search className="absolute left-3 top-1/2 -translate-y-1/2 w-4 h-4 text-muted-foreground" />
+          <Input
+            value={search}
+            onChange={(e) => onSearchChange(e.target.value)}
+            className="pl-10"
+            placeholder="Search merchants..."
+          />
+        </div>
+        <Button onClick={() => { setEditing(null); setModalOpen(true); }}>
+          <Plus className="w-4 h-4" />
+          {addLabel}
+        </Button>
+      </div>
+
+      {/* Mobile list */}
+      <Card className="md:hidden">
+        <CardContent className="p-0 divide-y divide-border">
+          {empty ? (
+            <div className="px-5 py-16 text-center text-muted-foreground text-sm">
+              {emptyIcon || <ArrowLeftRight className="w-8 h-8 mx-auto mb-3 text-muted-foreground/50" />}
+              {emptyMessage}
+            </div>
+          ) : (
+            transactions.map((tx) => (
+              <div key={tx.id} className="flex items-center gap-3 px-4 py-3">
+                <div
+                  className={cn(
+                    'w-8 h-8 rounded-lg flex items-center justify-center shrink-0',
+                    tx.transaction_type === 'DEVOLUCION'
+                      ? 'bg-primary/10 text-primary'
+                      : 'bg-destructive/10 text-destructive'
+                  )}
+                >
+                  {tx.transaction_type === 'DEVOLUCION' ? (
+                    <TrendingUp className="w-4 h-4" />
+                  ) : (
+                    <TrendingDown className="w-4 h-4" />
+                  )}
+                </div>
+                <div className="min-w-0 flex-1">
+                  <p className="text-sm font-medium truncate">{tx.merchant}</p>
+                  <p className="text-xs text-muted-foreground">
+                    {new Date(tx.date).toLocaleDateString('en-US', { month: 'short', day: 'numeric' })}
+                    {showCategory && tx.category && (
+                      <span className="ml-1.5 text-muted-foreground/60">{tx.category.name}</span>
+                    )}
+                  </p>
+                </div>
+                <span
+                  className={cn(
+                    'font-mono text-sm font-medium shrink-0',
+                    tx.transaction_type === 'DEVOLUCION' && 'text-primary'
+                  )}
+                >
+                  {tx.transaction_type === 'DEVOLUCION' ? '+' : '-'}
+                  {formatAmount(tx.amount, tx.currency)}
+                </span>
+                <div className="flex items-center gap-0.5 shrink-0">
+                  <Button variant="ghost" size="icon" title="Edit transaction" aria-label="Edit transaction" onClick={() => handleEdit(tx)}>
+                    <Pencil className="w-4 h-4" />
+                  </Button>
+                  <Button
+                    variant="ghost"
+                    size="icon"
+                    title="Delete transaction"
+                    aria-label="Delete transaction"
+                    onClick={() => setDeleteId(tx.id)}
+                    className="hover:text-destructive"
+                  >
+                    <Trash2 className="w-4 h-4" />
+                  </Button>
+                </div>
+              </div>
+            ))
+          )}
+        </CardContent>
+      </Card>
+
+      {/* Desktop table */}
+      <Card className="hidden md:block">
+        <CardContent className="p-0">
+          <DataTable
+            columns={columns}
+            data={transactions}
+            pagination
+            pageSize={25}
+            initialSorting={[{ id: 'date', desc: true }]}
+            emptyMessage={emptyMessage}
+          />
+        </CardContent>
+      </Card>
+
+      {/* Modals */}
+      {modalOpen && (
+        <TransactionModal
+          transaction={editing}
+          source={source}
+          onClose={() => setModalOpen(false)}
+          onSaved={onRefresh}
+        />
+      )}
+
+      {deleteId !== null && (
+        <ConfirmDialog
+          title="Delete Transaction"
+          message="This transaction will be permanently deleted. This action cannot be undone."
+          onConfirm={handleDelete}
+          onCancel={() => setDeleteId(null)}
+          loading={deleting}
+        />
+      )}
+    </>
+  );
+}

frontend/src/components/TransactionModal.tsx

@@ -1,6 +1,24 @@
 import { useEffect, useState } from 'react';
-import { X } from 'lucide-react';
 import api, { type Category, type Transaction } from '../api';
+import { Button } from '@/components/ui/button';
+import { Input } from '@/components/ui/input';
+import { Label } from '@/components/ui/label';
+import {
+  Dialog,
+  DialogContent,
+  DialogHeader,
+  DialogTitle,
+  DialogFooter,
+} from '@/components/ui/dialog';
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from '@/components/ui/select';
+import { Alert, AlertDescription } from '@/components/ui/alert';
+import { AlertCircle } from 'lucide-react';
 
 interface Props {
   transaction?: Transaction | null;
@@ -83,43 +101,35 @@ export default function TransactionModal({ transaction, source, onClose, onSaved
     }
   };
 
-  const inputClass =
-    'w-full bg-input-bg border border-border rounded-lg px-3 py-2.5 text-sm text-text-primary placeholder-text-faint focus:outline-none focus:border-[#606C38]/50 focus:ring-1 focus:ring-[#606C38]/20 transition-colors';
-  const labelClass = 'block text-xs font-medium text-text-secondary mb-1 uppercase tracking-wider';
-
   return (
-    <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/60 backdrop-blur-sm p-4">
-      <div className="bg-surface border border-border rounded-xl w-full max-w-lg max-h-[90vh] overflow-y-auto">
-        <div className="flex items-center justify-between px-5 py-4 border-b border-border">
-          <h3 className="font-semibold">
+    <Dialog open onOpenChange={(open) => { if (!open) onClose(); }}>
+      <DialogContent className="sm:max-w-lg max-h-[90vh] overflow-y-auto">
+        <DialogHeader>
+          <DialogTitle>
             {transaction ? 'Edit Transaction' : 'New Transaction'}
-          </h3>
-          <button onClick={onClose} className="text-text-muted hover:text-text-primary transition-colors">
-            <X className="w-5 h-5" />
-          </button>
-        </div>
+          </DialogTitle>
+        </DialogHeader>
 
-        <form onSubmit={handleSubmit} className="p-5 space-y-4">
+        <form onSubmit={handleSubmit} className="space-y-4">
           {error && (
-            <div className="p-3 bg-red-500/10 border border-red-500/20 rounded-lg text-sm text-red-500 dark:text-red-400">
-              {error}
-            </div>
+            <Alert variant="destructive">
+              <AlertCircle className="h-4 w-4" />
+              <AlertDescription>{error}</AlertDescription>
+            </Alert>
           )}
           <div className="grid grid-cols-2 gap-4">
-            <div className="col-span-2">
-              <label className={labelClass}>Merchant</label>
-              <input
-                className={inputClass}
+            <div className="col-span-2 space-y-2">
+              <Label>Merchant</Label>
+              <Input
                 value={form.merchant}
                 onChange={(e) => setForm({ ...form, merchant: e.target.value })}
                 placeholder="e.g. AUTO MERCADO ON LINE"
                 required
               />
             </div>
-            <div>
-              <label className={labelClass}>Amount</label>
-              <input
-                className={inputClass}
+            <div className="space-y-2">
+              <Label>Amount</Label>
+              <Input
                 type="number"
                 step="0.01"
                 value={form.amount}
@@ -128,69 +138,74 @@ export default function TransactionModal({ transaction, source, onClose, onSaved
                 required
               />
             </div>
-            <div>
-              <label className={labelClass}>Currency</label>
-              <select
-                className={inputClass}
-                value={form.currency}
-                onChange={(e) => setForm({ ...form, currency: e.target.value })}
-              >
-                <option value="CRC">CRC (₡)</option>
-                <option value="USD">USD ($)</option>
-              </select>
+            <div className="space-y-2">
+              <Label>Currency</Label>
+              <Select value={form.currency} onValueChange={(v) => setForm({ ...form, currency: v })}>
+                <SelectTrigger className="w-full">
+                  <SelectValue />
+                </SelectTrigger>
+                <SelectContent>
+                  <SelectItem value="CRC">CRC (₡)</SelectItem>
+                  <SelectItem value="USD">USD ($)</SelectItem>
+                </SelectContent>
+              </Select>
             </div>
-            <div>
-              <label className={labelClass}>Date</label>
-              <input
-                className={inputClass}
+            <div className="space-y-2">
+              <Label>Date</Label>
+              <Input
                 type="datetime-local"
                 value={form.date}
                 onChange={(e) => setForm({ ...form, date: e.target.value })}
                 required
               />
             </div>
-            <div>
-              <label className={labelClass}>Type</label>
-              <select
-                className={inputClass}
-                value={form.transaction_type}
-                onChange={(e) => setForm({ ...form, transaction_type: e.target.value })}
-              >
-                <option value="COMPRA">Compra</option>
-                <option value="DEVOLUCION">Devolución</option>
-              </select>
+            <div className="space-y-2">
+              <Label>Type</Label>
+              <Select value={form.transaction_type} onValueChange={(v) => setForm({ ...form, transaction_type: v })}>
+                <SelectTrigger className="w-full">
+                  <SelectValue />
+                </SelectTrigger>
+                <SelectContent>
+                  <SelectItem value="COMPRA">Compra</SelectItem>
+                  <SelectItem value="DEVOLUCION">Devolución</SelectItem>
+                </SelectContent>
+              </Select>
             </div>
-            <div>
-              <label className={labelClass}>Category</label>
-              <select
-                className={inputClass}
-                value={form.category_id}
-                onChange={(e) => setForm({ ...form, category_id: e.target.value })}
+            <div className="space-y-2">
+              <Label>Category</Label>
+              <Select
+                value={form.category_id ? String(form.category_id) : 'auto'}
+                onValueChange={(v) => setForm({ ...form, category_id: v === 'auto' ? '' : v })}
               >
-                <option value="">Auto-detect</option>
+                <SelectTrigger className="w-full">
+                  <SelectValue />
+                </SelectTrigger>
+                <SelectContent>
+                  <SelectItem value="auto">Auto-detect</SelectItem>
                   {categories.map((c) => (
-                  <option key={c.id} value={c.id}>
+                    <SelectItem key={c.id} value={String(c.id)}>
                       {c.name}
-                  </option>
+                    </SelectItem>
                   ))}
-              </select>
+                </SelectContent>
+              </Select>
             </div>
-            <div>
-              <label className={labelClass}>Bank</label>
-              <select
-                className={inputClass}
-                value={form.bank}
-                onChange={(e) => setForm({ ...form, bank: e.target.value })}
-              >
-                <option value="BAC">BAC</option>
-                <option value="BCR">BCR</option>
-                <option value="DAVIVIENDA">Davivienda</option>
-              </select>
+            <div className="space-y-2">
+              <Label>Bank</Label>
+              <Select value={form.bank} onValueChange={(v) => setForm({ ...form, bank: v })}>
+                <SelectTrigger className="w-full">
+                  <SelectValue />
+                </SelectTrigger>
+                <SelectContent>
+                  <SelectItem value="BAC">BAC</SelectItem>
+                  <SelectItem value="BCR">BCR</SelectItem>
+                  <SelectItem value="DAVIVIENDA">Davivienda</SelectItem>
+                </SelectContent>
+              </Select>
             </div>
-            <div>
-              <label className={labelClass}>City</label>
-              <input
-                className={inputClass}
+            <div className="space-y-2">
+              <Label>City</Label>
+              <Input
                 value={form.city}
                 onChange={(e) => setForm({ ...form, city: e.target.value })}
                 placeholder="SAN JOSE, Costa Rica"
@@ -198,19 +213,17 @@ export default function TransactionModal({ transaction, source, onClose, onSaved
             </div>
             {source === 'CREDIT_CARD' && (
               <>
-                <div>
-                  <label className={labelClass}>Card Type</label>
-                  <input
-                    className={inputClass}
+                <div className="space-y-2">
+                  <Label>Card Type</Label>
+                  <Input
                     value={form.card_type}
                     onChange={(e) => setForm({ ...form, card_type: e.target.value })}
                     placeholder="MASTER"
                   />
                 </div>
-                <div>
-                  <label className={labelClass}>Card Last 4</label>
-                  <input
-                    className={inputClass}
+                <div className="space-y-2">
+                  <Label>Card Last 4</Label>
+                  <Input
                     value={form.card_last4}
                     onChange={(e) => setForm({ ...form, card_last4: e.target.value })}
                     placeholder="6585"
@@ -219,10 +232,9 @@ export default function TransactionModal({ transaction, source, onClose, onSaved
                 </div>
               </>
             )}
-            <div className="col-span-2">
-              <label className={labelClass}>Notes</label>
-              <input
-                className={inputClass}
+            <div className="col-span-2 space-y-2">
+              <Label>Notes</Label>
+              <Input
                 value={form.notes}
                 onChange={(e) => setForm({ ...form, notes: e.target.value })}
                 placeholder="Optional notes"
@@ -230,24 +242,16 @@ export default function TransactionModal({ transaction, source, onClose, onSaved
             </div>
           </div>
 
-          <div className="flex gap-3 pt-2">
-            <button
-              type="button"
-              onClick={onClose}
-              className="flex-1 px-4 py-2.5 rounded-lg text-sm font-medium text-text-secondary border border-border hover:bg-surface-hover transition-colors"
-            >
+          <DialogFooter>
+            <Button type="button" variant="outline" onClick={onClose}>
               Cancel
-            </button>
-            <button
-              type="submit"
-              disabled={saving}
-              className="flex-1 px-4 py-2.5 rounded-lg text-sm font-medium bg-[#606C38] hover:bg-[#7a8a4a] text-white dark:text-[#FEFAE0] transition-colors disabled:opacity-50"
-            >
+            </Button>
+            <Button type="submit" disabled={saving}>
               {saving ? 'Saving...' : transaction ? 'Update' : 'Create'}
-            </button>
-          </div>
+            </Button>
+          </DialogFooter>
         </form>
-      </div>
-    </div>
+      </DialogContent>
+    </Dialog>
   );
 }

frontend/src/components/transactions/transaction-columns.tsx

@@ -0,0 +1,137 @@
+import { type ColumnDef } from '@tanstack/react-table';
+import { Pencil, Trash2, TrendingDown, TrendingUp } from 'lucide-react';
+
+import { type Transaction } from '@/api';
+import { formatAmount } from '@/lib/format';
+import { cn } from '@/lib/utils';
+import { Button } from '@/components/ui/button';
+import { Badge } from '@/components/ui/badge';
+import { DataTableColumnHeader } from '@/components/ui/data-table-column-header';
+
+interface TransactionColumnOptions {
+  showCategory: boolean;
+  onEdit: (tx: Transaction) => void;
+  onDelete: (txId: number) => void;
+}
+
+export function getTransactionColumns({
+  showCategory,
+  onEdit,
+  onDelete,
+}: TransactionColumnOptions): ColumnDef<Transaction, unknown>[] {
+  const columns: ColumnDef<Transaction, unknown>[] = [
+    {
+      accessorKey: 'date',
+      header: ({ column }) => <DataTableColumnHeader column={column} title="Date" />,
+      cell: ({ row }) => (
+        <span className="font-mono text-muted-foreground text-xs whitespace-nowrap">
+          {new Date(row.original.date).toLocaleDateString('en-US', {
+            month: 'short',
+            day: 'numeric',
+            year: 'numeric',
+          })}
+        </span>
+      ),
+    },
+    {
+      accessorKey: 'merchant',
+      header: ({ column }) => <DataTableColumnHeader column={column} title="Merchant" />,
+      cell: ({ row }) => {
+        const tx = row.original;
+        return (
+          <div className="flex items-center gap-2">
+            <div
+              className={cn(
+                'w-6 h-6 rounded flex items-center justify-center shrink-0',
+                tx.transaction_type === 'DEVOLUCION'
+                  ? 'bg-primary/10 text-primary'
+                  : 'bg-destructive/10 text-destructive',
+              )}
+            >
+              {tx.transaction_type === 'DEVOLUCION' ? (
+                <TrendingUp className="w-3 h-3" />
+              ) : (
+                <TrendingDown className="w-3 h-3" />
+              )}
+            </div>
+            <span className="truncate">{tx.merchant}</span>
+          </div>
+        );
+      },
+    },
+  ];
+
+  if (showCategory) {
+    columns.push({
+      accessorFn: (row) => row.category?.name ?? '',
+      id: 'category',
+      header: ({ column }) => <DataTableColumnHeader column={column} title="Category" />,
+      cell: ({ row }) => {
+        const category = row.original.category;
+        return category ? (
+          <Badge variant="secondary">{category.name}</Badge>
+        ) : (
+          <span className="text-xs text-muted-foreground">&mdash;</span>
+        );
+      },
+    });
+  }
+
+  columns.push(
+    {
+      accessorKey: 'amount',
+      meta: { className: 'text-right' },
+      header: ({ column }) => (
+        <DataTableColumnHeader column={column} title="Amount" className="justify-end" />
+      ),
+      cell: ({ row }) => {
+        const tx = row.original;
+        return (
+          <span
+            className={cn(
+              'font-mono font-medium',
+              tx.transaction_type === 'DEVOLUCION' && 'text-primary',
+            )}
+          >
+            {tx.transaction_type === 'DEVOLUCION' ? '+' : '-'}
+            {formatAmount(tx.amount, tx.currency)}
+          </span>
+        );
+      },
+    },
+    {
+      id: 'actions',
+      meta: { className: 'text-right' },
+      size: 80,
+      enableSorting: false,
+      cell: ({ row }) => {
+        const tx = row.original;
+        return (
+          <div className="flex items-center justify-end gap-1">
+            <Button
+              variant="ghost"
+              size="icon"
+              title="Edit transaction"
+              aria-label="Edit transaction"
+              onClick={() => onEdit(tx)}
+            >
+              <Pencil className="w-4 h-4" />
+            </Button>
+            <Button
+              variant="ghost"
+              size="icon"
+              title="Delete transaction"
+              aria-label="Delete transaction"
+              onClick={() => onDelete(tx.id)}
+              className="hover:text-destructive"
+            >
+              <Trash2 className="w-4 h-4" />
+            </Button>
+          </div>
+        );
+      },
+    },
+  );
+
+  return columns;
+}

frontend/src/components/ui/accordion.tsx

@@ -0,0 +1,72 @@
+import { Accordion as AccordionPrimitive } from "@base-ui/react/accordion"
+
+import { cn } from "@/lib/utils"
+import { ChevronDownIcon, ChevronUpIcon } from "lucide-react"
+
+function Accordion({ className, ...props }: AccordionPrimitive.Root.Props) {
+  return (
+    <AccordionPrimitive.Root
+      data-slot="accordion"
+      className={cn("flex w-full flex-col", className)}
+      {...props}
+    />
+  )
+}
+
+function AccordionItem({ className, ...props }: AccordionPrimitive.Item.Props) {
+  return (
+    <AccordionPrimitive.Item
+      data-slot="accordion-item"
+      className={cn("not-last:border-b", className)}
+      {...props}
+    />
+  )
+}
+
+function AccordionTrigger({
+  className,
+  children,
+  ...props
+}: AccordionPrimitive.Trigger.Props) {
+  return (
+    <AccordionPrimitive.Header className="flex">
+      <AccordionPrimitive.Trigger
+        data-slot="accordion-trigger"
+        className={cn(
+          "group/accordion-trigger relative flex flex-1 items-start justify-between rounded-lg border border-transparent py-2.5 text-left text-sm font-medium transition-all outline-none hover:underline focus-visible:border-ring focus-visible:ring-3 focus-visible:ring-ring/50 focus-visible:after:border-ring aria-disabled:pointer-events-none aria-disabled:opacity-50 **:data-[slot=accordion-trigger-icon]:ml-auto **:data-[slot=accordion-trigger-icon]:size-4 **:data-[slot=accordion-trigger-icon]:text-muted-foreground",
+          className
+        )}
+        {...props}
+      >
+        {children}
+        <ChevronDownIcon data-slot="accordion-trigger-icon" className="pointer-events-none shrink-0 group-aria-expanded/accordion-trigger:hidden" />
+        <ChevronUpIcon data-slot="accordion-trigger-icon" className="pointer-events-none hidden shrink-0 group-aria-expanded/accordion-trigger:inline" />
+      </AccordionPrimitive.Trigger>
+    </AccordionPrimitive.Header>
+  )
+}
+
+function AccordionContent({
+  className,
+  children,
+  ...props
+}: AccordionPrimitive.Panel.Props) {
+  return (
+    <AccordionPrimitive.Panel
+      data-slot="accordion-content"
+      className="overflow-hidden text-sm data-open:animate-accordion-down data-closed:animate-accordion-up"
+      {...props}
+    >
+      <div
+        className={cn(
+          "h-(--accordion-panel-height) pt-0 pb-2.5 data-ending-style:h-0 data-starting-style:h-0 [&_a]:underline [&_a]:underline-offset-3 [&_a]:hover:text-foreground [&_p:not(:last-child)]:mb-4",
+          className
+        )}
+      >
+        {children}
+      </div>
+    </AccordionPrimitive.Panel>
+  )
+}
+
+export { Accordion, AccordionItem, AccordionTrigger, AccordionContent }

frontend/src/components/ui/alert-dialog.tsx

@@ -0,0 +1,187 @@
+"use client"
+
+import * as React from "react"
+import { AlertDialog as AlertDialogPrimitive } from "@base-ui/react/alert-dialog"
+
+import { cn } from "@/lib/utils"
+import { Button } from "@/components/ui/button"
+
+function AlertDialog({ ...props }: AlertDialogPrimitive.Root.Props) {
+  return <AlertDialogPrimitive.Root data-slot="alert-dialog" {...props} />
+}
+
+function AlertDialogTrigger({ ...props }: AlertDialogPrimitive.Trigger.Props) {
+  return (
+    <AlertDialogPrimitive.Trigger data-slot="alert-dialog-trigger" {...props} />
+  )
+}
+
+function AlertDialogPortal({ ...props }: AlertDialogPrimitive.Portal.Props) {
+  return (
+    <AlertDialogPrimitive.Portal data-slot="alert-dialog-portal" {...props} />
+  )
+}
+
+function AlertDialogOverlay({
+  className,
+  ...props
+}: AlertDialogPrimitive.Backdrop.Props) {
+  return (
+    <AlertDialogPrimitive.Backdrop
+      data-slot="alert-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 AlertDialogContent({
+  className,
+  size = "default",
+  ...props
+}: AlertDialogPrimitive.Popup.Props & {
+  size?: "default" | "sm"
+}) {
+  return (
+    <AlertDialogPortal>
+      <AlertDialogOverlay />
+      <AlertDialogPrimitive.Popup
+        data-slot="alert-dialog-content"
+        data-size={size}
+        className={cn(
+          "group/alert-dialog-content fixed top-1/2 left-1/2 z-50 grid w-full -translate-x-1/2 -translate-y-1/2 gap-4 rounded-xl bg-background p-4 ring-1 ring-foreground/10 duration-100 outline-none data-[size=default]:max-w-xs data-[size=sm]:max-w-xs data-[size=default]: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}
+      />
+    </AlertDialogPortal>
+  )
+}
+
+function AlertDialogHeader({
+  className,
+  ...props
+}: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="alert-dialog-header"
+      className={cn(
+        "grid grid-rows-[auto_1fr] place-items-center gap-1.5 text-center has-data-[slot=alert-dialog-media]:grid-rows-[auto_auto_1fr] has-data-[slot=alert-dialog-media]:gap-x-4 sm:group-data-[size=default]/alert-dialog-content:place-items-start sm:group-data-[size=default]/alert-dialog-content:text-left sm:group-data-[size=default]/alert-dialog-content:has-data-[slot=alert-dialog-media]:grid-rows-[auto_1fr]",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AlertDialogFooter({
+  className,
+  ...props
+}: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="alert-dialog-footer"
+      className={cn(
+        "-mx-4 -mb-4 flex flex-col-reverse gap-2 rounded-b-xl border-t bg-muted/50 p-4 group-data-[size=sm]/alert-dialog-content:grid group-data-[size=sm]/alert-dialog-content:grid-cols-2 sm:flex-row sm:justify-end",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AlertDialogMedia({
+  className,
+  ...props
+}: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="alert-dialog-media"
+      className={cn(
+        "mb-2 inline-flex size-10 items-center justify-center rounded-md bg-muted sm:group-data-[size=default]/alert-dialog-content:row-span-2 *:[svg:not([class*='size-'])]:size-6",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AlertDialogTitle({
+  className,
+  ...props
+}: React.ComponentProps<typeof AlertDialogPrimitive.Title>) {
+  return (
+    <AlertDialogPrimitive.Title
+      data-slot="alert-dialog-title"
+      className={cn(
+        "font-heading text-base font-medium sm:group-data-[size=default]/alert-dialog-content:group-has-data-[slot=alert-dialog-media]/alert-dialog-content:col-start-2",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AlertDialogDescription({
+  className,
+  ...props
+}: React.ComponentProps<typeof AlertDialogPrimitive.Description>) {
+  return (
+    <AlertDialogPrimitive.Description
+      data-slot="alert-dialog-description"
+      className={cn(
+        "text-sm text-balance text-muted-foreground md:text-pretty *:[a]:underline *:[a]:underline-offset-3 *:[a]:hover:text-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AlertDialogAction({
+  className,
+  ...props
+}: React.ComponentProps<typeof Button>) {
+  return (
+    <Button
+      data-slot="alert-dialog-action"
+      className={cn(className)}
+      {...props}
+    />
+  )
+}
+
+function AlertDialogCancel({
+  className,
+  variant = "outline",
+  size = "default",
+  ...props
+}: AlertDialogPrimitive.Close.Props &
+  Pick<React.ComponentProps<typeof Button>, "variant" | "size">) {
+  return (
+    <AlertDialogPrimitive.Close
+      data-slot="alert-dialog-cancel"
+      className={cn(className)}
+      render={<Button variant={variant} size={size} />}
+      {...props}
+    />
+  )
+}
+
+export {
+  AlertDialog,
+  AlertDialogAction,
+  AlertDialogCancel,
+  AlertDialogContent,
+  AlertDialogDescription,
+  AlertDialogFooter,
+  AlertDialogHeader,
+  AlertDialogMedia,
+  AlertDialogOverlay,
+  AlertDialogPortal,
+  AlertDialogTitle,
+  AlertDialogTrigger,
+}

frontend/src/components/ui/alert.tsx

@@ -0,0 +1,76 @@
+import * as React from "react"
+import { cva, type VariantProps } from "class-variance-authority"
+
+import { cn } from "@/lib/utils"
+
+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",
+    },
+  }
+)
+
+function Alert({
+  className,
+  variant,
+  ...props
+}: React.ComponentProps<"div"> & VariantProps<typeof alertVariants>) {
+  return (
+    <div
+      data-slot="alert"
+      role="alert"
+      className={cn(alertVariants({ variant }), className)}
+      {...props}
+    />
+  )
+}
+
+function AlertTitle({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="alert-title"
+      className={cn(
+        "font-heading font-medium group-has-[>svg]/alert:col-start-2 [&_a]:underline [&_a]:underline-offset-3 [&_a]:hover:text-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+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 AlertAction({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="alert-action"
+      className={cn("absolute top-2 right-2", className)}
+      {...props}
+    />
+  )
+}
+
+export { Alert, AlertTitle, AlertDescription, AlertAction }

frontend/src/components/ui/badge.tsx

@@ -0,0 +1,52 @@
+import { mergeProps } from "@base-ui/react/merge-props"
+import { useRender } from "@base-ui/react/use-render"
+import { cva, type VariantProps } from "class-variance-authority"
+
+import { cn } from "@/lib/utils"
+
+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 has-data-[icon=inline-end]:pr-1.5 has-data-[icon=inline-start]:pl-1.5 aria-invalid:border-destructive aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 [&>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 focus-visible:ring-destructive/20 dark:bg-destructive/20 dark:focus-visible:ring-destructive/40 [a]:hover:bg-destructive/20",
+        outline:
+          "border-border text-foreground [a]:hover:bg-muted [a]:hover:text-muted-foreground",
+        ghost:
+          "hover:bg-muted hover:text-muted-foreground dark:hover:bg-muted/50",
+        link: "text-primary underline-offset-4 hover:underline",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+    },
+  }
+)
+
+function Badge({
+  className,
+  variant = "default",
+  render,
+  ...props
+}: useRender.ComponentProps<"span"> & VariantProps<typeof badgeVariants>) {
+  return useRender({
+    defaultTagName: "span",
+    props: mergeProps<"span">(
+      {
+        className: cn(badgeVariants({ variant }), className),
+      },
+      props
+    ),
+    render,
+    state: {
+      slot: "badge",
+      variant,
+    },
+  })
+}
+
+export { Badge, badgeVariants }

frontend/src/components/ui/button.tsx

@@ -0,0 +1,58 @@
+import { Button as ButtonPrimitive } from "@base-ui/react/button"
+import { cva, type VariantProps } from "class-variance-authority"
+
+import { cn } from "@/lib/utils"
+
+const buttonVariants = cva(
+  "group/button inline-flex shrink-0 cursor-pointer 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 in-data-[slot=button-group]:rounded-lg has-data-[icon=inline-end]:pr-1.5 has-data-[icon=inline-start]:pl-1.5 [&_svg:not([class*='size-'])]:size-3",
+        sm: "h-7 gap-1 rounded-[min(var(--radius-md),12px)] px-2.5 text-[0.8rem] in-data-[slot=button-group]:rounded-lg has-data-[icon=inline-end]:pr-1.5 has-data-[icon=inline-start]:pl-1.5 [&_svg:not([class*='size-'])]:size-3.5",
+        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)] in-data-[slot=button-group]:rounded-lg [&_svg:not([class*='size-'])]:size-3",
+        "icon-sm":
+          "size-7 rounded-[min(var(--radius-md),12px)] in-data-[slot=button-group]:rounded-lg",
+        "icon-lg": "size-9",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+      size: "default",
+    },
+  }
+)
+
+function Button({
+  className,
+  variant = "default",
+  size = "default",
+  ...props
+}: ButtonPrimitive.Props & VariantProps<typeof buttonVariants>) {
+  return (
+    <ButtonPrimitive
+      data-slot="button"
+      className={cn(buttonVariants({ variant, size, className }))}
+      {...props}
+    />
+  )
+}
+
+export { Button, buttonVariants }

frontend/src/components/ui/card.tsx

@@ -0,0 +1,103 @@
+import * as React from "react"
+
+import { cn } from "@/lib/utils"
+
+function Card({
+  className,
+  size = "default",
+  ...props
+}: React.ComponentProps<"div"> & { size?: "default" | "sm" }) {
+  return (
+    <div
+      data-slot="card"
+      data-size={size}
+      className={cn(
+        "group/card flex flex-col gap-4 overflow-hidden rounded-xl bg-card py-4 text-sm text-card-foreground ring-1 ring-foreground/10 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",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function CardHeader({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      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
+      )}
+      {...props}
+    />
+  )
+}
+
+function CardTitle({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="card-title"
+      className={cn(
+        "font-heading text-base leading-snug font-medium group-data-[size=sm]/card:text-sm",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function CardDescription({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="card-description"
+      className={cn("text-sm text-muted-foreground", className)}
+      {...props}
+    />
+  )
+}
+
+function CardAction({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="card-action"
+      className={cn(
+        "col-start-2 row-span-2 row-start-1 self-start justify-self-end",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function CardContent({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="card-content"
+      className={cn("px-4 group-data-[size=sm]/card:px-3", className)}
+      {...props}
+    />
+  )
+}
+
+function CardFooter({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      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
+      )}
+      {...props}
+    />
+  )
+}
+
+export {
+  Card,
+  CardHeader,
+  CardFooter,
+  CardTitle,
+  CardAction,
+  CardDescription,
+  CardContent,
+}

frontend/src/components/ui/chart.tsx

@@ -0,0 +1,356 @@
+"use client"
+
+import * as React from "react"
+import * as RechartsPrimitive from "recharts"
+
+import { cn } from "@/lib/utils"
+
+// Format: { THEME_NAME: CSS_SELECTOR }
+const THEMES = { light: "", dark: ".dark" } as const
+
+export type ChartConfig = {
+  [k in string]: {
+    label?: React.ReactNode
+    icon?: React.ComponentType
+  } & (
+    | { color?: string; theme?: never }
+    | { color?: never; theme: Record<keyof typeof THEMES, string> }
+  )
+}
+
+type ChartContextProps = {
+  config: ChartConfig
+}
+
+const ChartContext = React.createContext<ChartContextProps | null>(null)
+
+function useChart() {
+  const context = React.useContext(ChartContext)
+
+  if (!context) {
+    throw new Error("useChart must be used within a <ChartContainer />")
+  }
+
+  return context
+}
+
+function ChartContainer({
+  id,
+  className,
+  children,
+  config,
+  ...props
+}: React.ComponentProps<"div"> & {
+  config: ChartConfig
+  children: React.ComponentProps<
+    typeof RechartsPrimitive.ResponsiveContainer
+  >["children"]
+}) {
+  const uniqueId = React.useId()
+  const chartId = `chart-${id || uniqueId.replace(/:/g, "")}`
+
+  return (
+    <ChartContext.Provider value={{ config }}>
+      <div
+        data-slot="chart"
+        data-chart={chartId}
+        className={cn(
+          "flex aspect-video justify-center text-xs [&_.recharts-cartesian-axis-tick_text]:fill-muted-foreground [&_.recharts-cartesian-grid_line[stroke='#ccc']]:stroke-border/50 [&_.recharts-curve.recharts-tooltip-cursor]:stroke-border [&_.recharts-dot[stroke='#fff']]:stroke-transparent [&_.recharts-layer]:outline-hidden [&_.recharts-polar-grid_[stroke='#ccc']]:stroke-border [&_.recharts-radial-bar-background-sector]:fill-muted [&_.recharts-rectangle.recharts-tooltip-cursor]:fill-muted [&_.recharts-reference-line_[stroke='#ccc']]:stroke-border [&_.recharts-sector]:outline-hidden [&_.recharts-sector[stroke='#fff']]:stroke-transparent [&_.recharts-surface]:outline-hidden",
+          className
+        )}
+        {...props}
+      >
+        <ChartStyle id={chartId} config={config} />
+        <RechartsPrimitive.ResponsiveContainer>
+          {children}
+        </RechartsPrimitive.ResponsiveContainer>
+      </div>
+    </ChartContext.Provider>
+  )
+}
+
+const ChartStyle = ({ id, config }: { id: string; config: ChartConfig }) => {
+  const colorConfig = Object.entries(config).filter(
+    ([, config]) => config.theme || config.color
+  )
+
+  if (!colorConfig.length) {
+    return null
+  }
+
+  return (
+    <style
+      dangerouslySetInnerHTML={{
+        __html: Object.entries(THEMES)
+          .map(
+            ([theme, prefix]) => `
+${prefix} [data-chart=${id}] {
+${colorConfig
+  .map(([key, itemConfig]) => {
+    const color =
+      itemConfig.theme?.[theme as keyof typeof itemConfig.theme] ||
+      itemConfig.color
+    return color ? `  --color-${key}: ${color};` : null
+  })
+  .join("\n")}
+}
+`
+          )
+          .join("\n"),
+      }}
+    />
+  )
+}
+
+const ChartTooltip = RechartsPrimitive.Tooltip
+
+function ChartTooltipContent({
+  active,
+  payload,
+  className,
+  indicator = "dot",
+  hideLabel = false,
+  hideIndicator = false,
+  label,
+  labelFormatter,
+  labelClassName,
+  formatter,
+  color,
+  nameKey,
+  labelKey,
+}: React.ComponentProps<typeof RechartsPrimitive.Tooltip> &
+  React.ComponentProps<"div"> & {
+    hideLabel?: boolean
+    hideIndicator?: boolean
+    indicator?: "line" | "dot" | "dashed"
+    nameKey?: string
+    labelKey?: string
+  }) {
+  const { config } = useChart()
+
+  const tooltipLabel = React.useMemo(() => {
+    if (hideLabel || !payload?.length) {
+      return null
+    }
+
+    const [item] = payload
+    const key = `${labelKey || item?.dataKey || item?.name || "value"}`
+    const itemConfig = getPayloadConfigFromPayload(config, item, key)
+    const value =
+      !labelKey && typeof label === "string"
+        ? config[label as keyof typeof config]?.label || label
+        : itemConfig?.label
+
+    if (labelFormatter) {
+      return (
+        <div className={cn("font-medium", labelClassName)}>
+          {labelFormatter(value, payload)}
+        </div>
+      )
+    }
+
+    if (!value) {
+      return null
+    }
+
+    return <div className={cn("font-medium", labelClassName)}>{value}</div>
+  }, [
+    label,
+    labelFormatter,
+    payload,
+    hideLabel,
+    labelClassName,
+    config,
+    labelKey,
+  ])
+
+  if (!active || !payload?.length) {
+    return null
+  }
+
+  const nestLabel = payload.length === 1 && indicator !== "dot"
+
+  return (
+    <div
+      className={cn(
+        "grid min-w-32 items-start gap-1.5 rounded-lg border border-border/50 bg-background px-2.5 py-1.5 text-xs shadow-xl",
+        className
+      )}
+    >
+      {!nestLabel ? tooltipLabel : null}
+      <div className="grid gap-1.5">
+        {payload
+          .filter((item) => item.type !== "none")
+          .map((item, index) => {
+            const key = `${nameKey || item.name || item.dataKey || "value"}`
+            const itemConfig = getPayloadConfigFromPayload(config, item, key)
+            const indicatorColor = color || item.payload.fill || item.color
+
+            return (
+              <div
+                key={item.dataKey}
+                className={cn(
+                  "flex w-full flex-wrap items-stretch gap-2 [&>svg]:h-2.5 [&>svg]:w-2.5 [&>svg]:text-muted-foreground",
+                  indicator === "dot" && "items-center"
+                )}
+              >
+                {formatter && item?.value !== undefined && item.name ? (
+                  formatter(item.value, item.name, item, index, item.payload)
+                ) : (
+                  <>
+                    {itemConfig?.icon ? (
+                      <itemConfig.icon />
+                    ) : (
+                      !hideIndicator && (
+                        <div
+                          className={cn(
+                            "shrink-0 rounded-[2px] border-(--color-border) bg-(--color-bg)",
+                            {
+                              "h-2.5 w-2.5": indicator === "dot",
+                              "w-1": indicator === "line",
+                              "w-0 border-[1.5px] border-dashed bg-transparent":
+                                indicator === "dashed",
+                              "my-0.5": nestLabel && indicator === "dashed",
+                            }
+                          )}
+                          style={
+                            {
+                              "--color-bg": indicatorColor,
+                              "--color-border": indicatorColor,
+                            } as React.CSSProperties
+                          }
+                        />
+                      )
+                    )}
+                    <div
+                      className={cn(
+                        "flex flex-1 justify-between leading-none",
+                        nestLabel ? "items-end" : "items-center"
+                      )}
+                    >
+                      <div className="grid gap-1.5">
+                        {nestLabel ? tooltipLabel : null}
+                        <span className="text-muted-foreground">
+                          {itemConfig?.label || item.name}
+                        </span>
+                      </div>
+                      {item.value && (
+                        <span className="font-mono font-medium text-foreground tabular-nums">
+                          {item.value.toLocaleString()}
+                        </span>
+                      )}
+                    </div>
+                  </>
+                )}
+              </div>
+            )
+          })}
+      </div>
+    </div>
+  )
+}
+
+const ChartLegend = RechartsPrimitive.Legend
+
+function ChartLegendContent({
+  className,
+  hideIcon = false,
+  payload,
+  verticalAlign = "bottom",
+  nameKey,
+}: React.ComponentProps<"div"> &
+  Pick<RechartsPrimitive.LegendProps, "payload" | "verticalAlign"> & {
+    hideIcon?: boolean
+    nameKey?: string
+  }) {
+  const { config } = useChart()
+
+  if (!payload?.length) {
+    return null
+  }
+
+  return (
+    <div
+      className={cn(
+        "flex items-center justify-center gap-4",
+        verticalAlign === "top" ? "pb-3" : "pt-3",
+        className
+      )}
+    >
+      {payload
+        .filter((item) => item.type !== "none")
+        .map((item) => {
+          const key = `${nameKey || item.dataKey || "value"}`
+          const itemConfig = getPayloadConfigFromPayload(config, item, key)
+
+          return (
+            <div
+              key={item.value}
+              className={cn(
+                "flex items-center gap-1.5 [&>svg]:h-3 [&>svg]:w-3 [&>svg]:text-muted-foreground"
+              )}
+            >
+              {itemConfig?.icon && !hideIcon ? (
+                <itemConfig.icon />
+              ) : (
+                <div
+                  className="h-2 w-2 shrink-0 rounded-[2px]"
+                  style={{
+                    backgroundColor: item.color,
+                  }}
+                />
+              )}
+              {itemConfig?.label}
+            </div>
+          )
+        })}
+    </div>
+  )
+}
+
+function getPayloadConfigFromPayload(
+  config: ChartConfig,
+  payload: unknown,
+  key: string
+) {
+  if (typeof payload !== "object" || payload === null) {
+    return undefined
+  }
+
+  const payloadPayload =
+    "payload" in payload &&
+    typeof payload.payload === "object" &&
+    payload.payload !== null
+      ? payload.payload
+      : undefined
+
+  let configLabelKey: string = key
+
+  if (
+    key in payload &&
+    typeof payload[key as keyof typeof payload] === "string"
+  ) {
+    configLabelKey = payload[key as keyof typeof payload] as string
+  } else if (
+    payloadPayload &&
+    key in payloadPayload &&
+    typeof payloadPayload[key as keyof typeof payloadPayload] === "string"
+  ) {
+    configLabelKey = payloadPayload[
+      key as keyof typeof payloadPayload
+    ] as string
+  }
+
+  return configLabelKey in config
+    ? config[configLabelKey]
+    : config[key as keyof typeof config]
+}
+
+export {
+  ChartContainer,
+  ChartTooltip,
+  ChartTooltipContent,
+  ChartLegend,
+  ChartLegendContent,
+  ChartStyle,
+}

frontend/src/components/ui/data-table-column-header.tsx

@@ -0,0 +1,41 @@
+import { type Column } from '@tanstack/react-table';
+import { ArrowDown, ArrowUp, ArrowUpDown } from 'lucide-react';
+
+import { cn } from '@/lib/utils';
+import { Button } from '@/components/ui/button';
+
+interface DataTableColumnHeaderProps<TData, TValue> {
+  column: Column<TData, TValue>;
+  title: string;
+  className?: string;
+}
+
+export function DataTableColumnHeader<TData, TValue>({
+  column,
+  title,
+  className,
+}: DataTableColumnHeaderProps<TData, TValue>) {
+  if (!column.getCanSort()) {
+    return <div className={cn(className)}>{title}</div>;
+  }
+
+  const sorted = column.getIsSorted();
+
+  return (
+    <Button
+      variant="ghost"
+      size="sm"
+      className={cn('-ml-3 h-8', className)}
+      onClick={() => column.toggleSorting(sorted === 'asc')}
+    >
+      {title}
+      {sorted === 'desc' ? (
+        <ArrowDown className="ml-1 h-3.5 w-3.5" />
+      ) : sorted === 'asc' ? (
+        <ArrowUp className="ml-1 h-3.5 w-3.5" />
+      ) : (
+        <ArrowUpDown className="ml-1 h-3.5 w-3.5 text-muted-foreground/50" />
+      )}
+    </Button>
+  );
+}

frontend/src/components/ui/data-table.tsx

@@ -0,0 +1,128 @@
+import { useState } from 'react';
+import {
+  type ColumnDef,
+  type SortingState,
+  flexRender,
+  getCoreRowModel,
+  getPaginationRowModel,
+  getSortedRowModel,
+  useReactTable,
+} from '@tanstack/react-table';
+import { ChevronLeft, ChevronRight } from 'lucide-react';
+
+import { Button } from '@/components/ui/button';
+import {
+  Table,
+  TableBody,
+  TableCell,
+  TableHead,
+  TableHeader,
+  TableRow,
+} from '@/components/ui/table';
+
+interface DataTableProps<TData, TValue> {
+  columns: ColumnDef<TData, TValue>[];
+  data: TData[];
+  pagination?: boolean;
+  pageSize?: number;
+  emptyMessage?: React.ReactNode;
+  initialSorting?: SortingState;
+}
+
+export function DataTable<TData, TValue>({
+  columns,
+  data,
+  pagination = false,
+  pageSize = 25,
+  emptyMessage = 'No results.',
+  initialSorting = [],
+}: DataTableProps<TData, TValue>) {
+  const [sorting, setSorting] = useState<SortingState>(initialSorting);
+
+  const table = useReactTable({
+    data,
+    columns,
+    state: { sorting },
+    onSortingChange: setSorting,
+    getCoreRowModel: getCoreRowModel(),
+    getSortedRowModel: getSortedRowModel(),
+    ...(pagination && {
+      getPaginationRowModel: getPaginationRowModel(),
+      initialState: { pagination: { pageSize } },
+    }),
+  });
+
+  return (
+    <div>
+      <Table>
+        <TableHeader>
+          {table.getHeaderGroups().map((headerGroup) => (
+            <TableRow key={headerGroup.id}>
+              {headerGroup.headers.map((header) => (
+                <TableHead
+                  key={header.id}
+                  className={(header.column.columnDef.meta as Record<string, string>)?.className}
+                  style={{ width: header.getSize() !== 150 ? header.getSize() : undefined }}
+                >
+                  {header.isPlaceholder
+                    ? null
+                    : flexRender(header.column.columnDef.header, header.getContext())}
+                </TableHead>
+              ))}
+            </TableRow>
+          ))}
+        </TableHeader>
+        <TableBody>
+          {table.getRowModel().rows.length ? (
+            table.getRowModel().rows.map((row) => (
+              <TableRow key={row.id}>
+                {row.getVisibleCells().map((cell) => (
+                  <TableCell
+                    key={cell.id}
+                    className={(cell.column.columnDef.meta as Record<string, string>)?.className}
+                  >
+                    {flexRender(cell.column.columnDef.cell, cell.getContext())}
+                  </TableCell>
+                ))}
+              </TableRow>
+            ))
+          ) : (
+            <TableRow>
+              <TableCell colSpan={columns.length} className="h-24 text-center text-muted-foreground">
+                {emptyMessage}
+              </TableCell>
+            </TableRow>
+          )}
+        </TableBody>
+      </Table>
+
+      {pagination && table.getPageCount() > 1 && (
+        <div className="flex items-center justify-between px-4 py-3 border-t">
+          <p className="text-sm text-muted-foreground">
+            Page {table.getState().pagination.pageIndex + 1} of {table.getPageCount()}
+          </p>
+          <div className="flex items-center gap-1">
+            <Button
+              variant="outline"
+              size="sm"
+              onClick={() => table.previousPage()}
+              disabled={!table.getCanPreviousPage()}
+            >
+              <ChevronLeft className="h-4 w-4" />
+              Previous
+            </Button>
+            <Button
+              variant="outline"
+              size="sm"
+              onClick={() => table.nextPage()}
+              disabled={!table.getCanNextPage()}
+            >
+              Next
+              <ChevronRight className="h-4 w-4" />
+            </Button>
+          </div>
+        </div>
+      )}
+    </div>
+  );
+}

frontend/src/components/ui/dialog.tsx

@@ -0,0 +1,158 @@
+import * as React from "react"
+import { Dialog as DialogPrimitive } from "@base-ui/react/dialog"
+
+import { cn } from "@/lib/utils"
+import { Button } from "@/components/ui/button"
+import { XIcon } from "lucide-react"
+
+function Dialog({ ...props }: DialogPrimitive.Root.Props) {
+  return <DialogPrimitive.Root data-slot="dialog" {...props} />
+}
+
+function DialogTrigger({ ...props }: DialogPrimitive.Trigger.Props) {
+  return <DialogPrimitive.Trigger data-slot="dialog-trigger" {...props} />
+}
+
+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 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"
+            render={
+              <Button
+                variant="ghost"
+                className="absolute top-2 right-2"
+                size="icon-sm"
+              />
+            }
+          >
+            <XIcon
+            />
+            <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,
+  showCloseButton = false,
+  children,
+  ...props
+}: React.ComponentProps<"div"> & {
+  showCloseButton?: boolean
+}) {
+  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}
+    >
+      {children}
+      {showCloseButton && (
+        <DialogPrimitive.Close render={<Button variant="outline" />}>
+          Close
+        </DialogPrimitive.Close>
+      )}
+    </div>
+  )
+}
+
+function DialogTitle({ className, ...props }: DialogPrimitive.Title.Props) {
+  return (
+    <DialogPrimitive.Title
+      data-slot="dialog-title"
+      className={cn(
+        "font-heading text-base leading-none font-medium",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function DialogDescription({
+  className,
+  ...props
+}: DialogPrimitive.Description.Props) {
+  return (
+    <DialogPrimitive.Description
+      data-slot="dialog-description"
+      className={cn(
+        "text-sm text-muted-foreground *:[a]:underline *:[a]:underline-offset-3 *:[a]:hover:text-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export {
+  Dialog,
+  DialogClose,
+  DialogContent,
+  DialogDescription,
+  DialogFooter,
+  DialogHeader,
+  DialogOverlay,
+  DialogPortal,
+  DialogTitle,
+  DialogTrigger,
+}

frontend/src/components/ui/dropdown-menu.tsx

@@ -0,0 +1,266 @@
+import * as React from "react"
+import { Menu as MenuPrimitive } from "@base-ui/react/menu"
+
+import { cn } from "@/lib/utils"
+import { ChevronRightIcon, CheckIcon } from "lucide-react"
+
+function DropdownMenu({ ...props }: MenuPrimitive.Root.Props) {
+  return <MenuPrimitive.Root data-slot="dropdown-menu" {...props} />
+}
+
+function DropdownMenuPortal({ ...props }: MenuPrimitive.Portal.Props) {
+  return <MenuPrimitive.Portal data-slot="dropdown-menu-portal" {...props} />
+}
+
+function DropdownMenuTrigger({ ...props }: MenuPrimitive.Trigger.Props) {
+  return <MenuPrimitive.Trigger data-slot="dropdown-menu-trigger" {...props} />
+}
+
+function DropdownMenuContent({
+  align = "start",
+  alignOffset = 0,
+  side = "bottom",
+  sideOffset = 4,
+  className,
+  ...props
+}: MenuPrimitive.Popup.Props &
+  Pick<
+    MenuPrimitive.Positioner.Props,
+    "align" | "alignOffset" | "side" | "sideOffset"
+  >) {
+  return (
+    <MenuPrimitive.Portal>
+      <MenuPrimitive.Positioner
+        className="isolate z-50 outline-none"
+        align={align}
+        alignOffset={alignOffset}
+        side={side}
+        sideOffset={sideOffset}
+      >
+        <MenuPrimitive.Popup
+          data-slot="dropdown-menu-content"
+          className={cn("z-50 max-h-(--available-height) w-(--anchor-width) min-w-32 origin-(--transform-origin) overflow-x-hidden overflow-y-auto rounded-lg p-1 text-popover-foreground shadow-md ring-1 ring-foreground/10 duration-100 outline-none data-[side=bottom]:slide-in-from-top-2 data-[side=inline-end]:slide-in-from-left-2 data-[side=inline-start]:slide-in-from-right-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 data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:overflow-hidden data-closed:fade-out-0 data-closed:zoom-out-95 animate-none! relative bg-popover/70 before:pointer-events-none before:absolute before:inset-0 before:-z-1 before:rounded-[inherit] before:backdrop-blur-2xl before:backdrop-saturate-150 **:data-[slot$=-item]:focus:bg-foreground/10 **:data-[slot$=-item]:data-highlighted:bg-foreground/10 **:data-[slot$=-separator]:bg-foreground/5 **:data-[slot$=-trigger]:focus:bg-foreground/10 **:data-[slot$=-trigger]:aria-expanded:bg-foreground/10! **:data-[variant=destructive]:focus:bg-foreground/10! **:data-[variant=destructive]:text-accent-foreground! **:data-[variant=destructive]:**:text-accent-foreground!", className )}
+          {...props}
+        />
+      </MenuPrimitive.Positioner>
+    </MenuPrimitive.Portal>
+  )
+}
+
+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"
+      data-inset={inset}
+      className={cn(
+        "px-1.5 py-1 text-xs font-medium text-muted-foreground data-inset:pl-7",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuItem({
+  className,
+  inset,
+  variant = "default",
+  ...props
+}: MenuPrimitive.Item.Props & {
+  inset?: boolean
+  variant?: "default" | "destructive"
+}) {
+  return (
+    <MenuPrimitive.Item
+      data-slot="dropdown-menu-item"
+      data-inset={inset}
+      data-variant={variant}
+      className={cn(
+        "group/dropdown-menu-item relative flex cursor-default items-center gap-1.5 rounded-md px-1.5 py-1 text-sm outline-hidden select-none focus:bg-accent focus:text-accent-foreground not-data-[variant=destructive]:focus:**:text-accent-foreground data-inset:pl-7 data-[variant=destructive]:text-destructive data-[variant=destructive]:focus:bg-destructive/10 data-[variant=destructive]:focus:text-destructive dark:data-[variant=destructive]:focus:bg-destructive/20 data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4 data-[variant=destructive]:*:[svg]:text-destructive",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuSub({ ...props }: MenuPrimitive.SubmenuRoot.Props) {
+  return <MenuPrimitive.SubmenuRoot 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"
+      data-inset={inset}
+      className={cn(
+        "flex cursor-default items-center gap-1.5 rounded-md px-1.5 py-1 text-sm outline-hidden select-none focus:bg-accent focus:text-accent-foreground not-data-[variant=destructive]:focus:**:text-accent-foreground data-inset:pl-7 data-popup-open:bg-accent data-popup-open:text-accent-foreground data-open:bg-accent data-open:text-accent-foreground [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    >
+      {children}
+      <ChevronRightIcon className="ml-auto" />
+    </MenuPrimitive.SubmenuTrigger>
+  )
+}
+
+function DropdownMenuSubContent({
+  align = "start",
+  alignOffset = -3,
+  side = "right",
+  sideOffset = 0,
+  className,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuContent>) {
+  return (
+    <DropdownMenuContent
+      data-slot="dropdown-menu-sub-content"
+      className={cn("w-auto min-w-[96px] rounded-lg p-1 text-popover-foreground shadow-lg ring-1 ring-foreground/10 duration-100 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 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 animate-none! relative bg-popover/70 before:pointer-events-none before:absolute before:inset-0 before:-z-1 before:rounded-[inherit] before:backdrop-blur-2xl before:backdrop-saturate-150 **:data-[slot$=-item]:focus:bg-foreground/10 **:data-[slot$=-item]:data-highlighted:bg-foreground/10 **:data-[slot$=-separator]:bg-foreground/5 **:data-[slot$=-trigger]:focus:bg-foreground/10 **:data-[slot$=-trigger]:aria-expanded:bg-foreground/10! **:data-[variant=destructive]:focus:bg-foreground/10! **:data-[variant=destructive]:text-accent-foreground! **:data-[variant=destructive]:**:text-accent-foreground!", className )}
+      align={align}
+      alignOffset={alignOffset}
+      side={side}
+      sideOffset={sideOffset}
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuCheckboxItem({
+  className,
+  children,
+  checked,
+  inset,
+  ...props
+}: MenuPrimitive.CheckboxItem.Props & {
+  inset?: boolean
+}) {
+  return (
+    <MenuPrimitive.CheckboxItem
+      data-slot="dropdown-menu-checkbox-item"
+      data-inset={inset}
+      className={cn(
+        "relative flex cursor-default items-center gap-1.5 rounded-md py-1 pr-8 pl-1.5 text-sm outline-hidden select-none focus:bg-accent focus:text-accent-foreground focus:**:text-accent-foreground data-inset:pl-7 data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      checked={checked}
+      {...props}
+    >
+      <span
+        className="pointer-events-none absolute right-2 flex items-center justify-center"
+        data-slot="dropdown-menu-checkbox-item-indicator"
+      >
+        <MenuPrimitive.CheckboxItemIndicator>
+          <CheckIcon
+          />
+        </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,
+  inset,
+  ...props
+}: MenuPrimitive.RadioItem.Props & {
+  inset?: boolean
+}) {
+  return (
+    <MenuPrimitive.RadioItem
+      data-slot="dropdown-menu-radio-item"
+      data-inset={inset}
+      className={cn(
+        "relative flex cursor-default items-center gap-1.5 rounded-md py-1 pr-8 pl-1.5 text-sm outline-hidden select-none focus:bg-accent focus:text-accent-foreground focus:**:text-accent-foreground data-inset:pl-7 data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    >
+      <span
+        className="pointer-events-none absolute right-2 flex items-center justify-center"
+        data-slot="dropdown-menu-radio-item-indicator"
+      >
+        <MenuPrimitive.RadioItemIndicator>
+          <CheckIcon
+          />
+        </MenuPrimitive.RadioItemIndicator>
+      </span>
+      {children}
+    </MenuPrimitive.RadioItem>
+  )
+}
+
+function DropdownMenuSeparator({
+  className,
+  ...props
+}: MenuPrimitive.Separator.Props) {
+  return (
+    <MenuPrimitive.Separator
+      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 group-focus/dropdown-menu-item:text-accent-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export {
+  DropdownMenu,
+  DropdownMenuPortal,
+  DropdownMenuTrigger,
+  DropdownMenuContent,
+  DropdownMenuGroup,
+  DropdownMenuLabel,
+  DropdownMenuItem,
+  DropdownMenuCheckboxItem,
+  DropdownMenuRadioGroup,
+  DropdownMenuRadioItem,
+  DropdownMenuSeparator,
+  DropdownMenuShortcut,
+  DropdownMenuSub,
+  DropdownMenuSubTrigger,
+  DropdownMenuSubContent,
+}

frontend/src/components/ui/input.tsx

@@ -0,0 +1,20 @@
+import * as React from "react"
+import { Input as InputPrimitive } from "@base-ui/react/input"
+
+import { cn } from "@/lib/utils"
+
+function Input({ className, type, ...props }: React.ComponentProps<"input">) {
+  return (
+    <InputPrimitive
+      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",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export { Input }

frontend/src/components/ui/label.tsx

@@ -0,0 +1,20 @@
+"use client"
+
+import * as React from "react"
+
+import { cn } from "@/lib/utils"
+
+function Label({ className, ...props }: React.ComponentProps<"label">) {
+  return (
+    <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
+      )}
+      {...props}
+    />
+  )
+}
+
+export { Label }

frontend/src/components/ui/select.tsx

@@ -0,0 +1,199 @@
+import * as React from "react"
+import { Select as SelectPrimitive } from "@base-ui/react/select"
+
+import { cn } from "@/lib/utils"
+import { ChevronDownIcon, CheckIcon, ChevronUpIcon } from "lucide-react"
+
+const Select = SelectPrimitive.Root
+
+function SelectGroup({ className, ...props }: SelectPrimitive.Group.Props) {
+  return (
+    <SelectPrimitive.Group
+      data-slot="select-group"
+      className={cn("scroll-my-1 p-1", className)}
+      {...props}
+    />
+  )
+}
+
+function SelectValue({ className, ...props }: SelectPrimitive.Value.Props) {
+  return (
+    <SelectPrimitive.Value
+      data-slot="select-value"
+      className={cn("flex flex-1 text-left", className)}
+      {...props}
+    />
+  )
+}
+
+function SelectTrigger({
+  className,
+  size = "default",
+  children,
+  ...props
+}: SelectPrimitive.Trigger.Props & {
+  size?: "sm" | "default"
+}) {
+  return (
+    <SelectPrimitive.Trigger
+      data-slot="select-trigger"
+      data-size={size}
+      className={cn(
+        "flex w-fit items-center justify-between gap-1.5 rounded-lg border border-input bg-transparent py-2 pr-2 pl-2.5 text-sm whitespace-nowrap transition-colors outline-none select-none focus-visible:border-ring focus-visible:ring-3 focus-visible:ring-ring/50 disabled:cursor-not-allowed disabled:opacity-50 aria-invalid:border-destructive aria-invalid:ring-3 aria-invalid:ring-destructive/20 data-placeholder:text-muted-foreground data-[size=default]:h-8 data-[size=sm]:h-7 data-[size=sm]:rounded-[min(var(--radius-md),10px)] *:data-[slot=select-value]:line-clamp-1 *:data-[slot=select-value]:flex *:data-[slot=select-value]:items-center *:data-[slot=select-value]:gap-1.5 dark:bg-input/30 dark:hover:bg-input/50 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",
+        className
+      )}
+      {...props}
+    >
+      {children}
+      <SelectPrimitive.Icon
+        render={
+          <ChevronDownIcon className="pointer-events-none size-4 text-muted-foreground" />
+        }
+      />
+    </SelectPrimitive.Trigger>
+  )
+}
+
+function SelectContent({
+  className,
+  children,
+  side = "bottom",
+  sideOffset = 4,
+  align = "center",
+  alignOffset = 0,
+  alignItemWithTrigger = true,
+  ...props
+}: SelectPrimitive.Popup.Props &
+  Pick<
+    SelectPrimitive.Positioner.Props,
+    "align" | "alignOffset" | "side" | "sideOffset" | "alignItemWithTrigger"
+  >) {
+  return (
+    <SelectPrimitive.Portal>
+      <SelectPrimitive.Positioner
+        side={side}
+        sideOffset={sideOffset}
+        align={align}
+        alignOffset={alignOffset}
+        alignItemWithTrigger={alignItemWithTrigger}
+        className="isolate z-50"
+      >
+        <SelectPrimitive.Popup
+          data-slot="select-content"
+          data-align-trigger={alignItemWithTrigger}
+          className={cn("isolate z-50 max-h-(--available-height) w-(--anchor-width) min-w-36 origin-(--transform-origin) overflow-x-hidden overflow-y-auto rounded-lg text-popover-foreground shadow-md ring-1 ring-foreground/10 duration-100 data-[align-trigger=true]:animate-none data-[side=bottom]:slide-in-from-top-2 data-[side=inline-end]:slide-in-from-left-2 data-[side=inline-start]:slide-in-from-right-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 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 animate-none! relative bg-popover/70 before:pointer-events-none before:absolute before:inset-0 before:-z-1 before:rounded-[inherit] before:backdrop-blur-2xl before:backdrop-saturate-150 **:data-[slot$=-item]:focus:bg-foreground/10 **:data-[slot$=-item]:data-highlighted:bg-foreground/10 **:data-[slot$=-separator]:bg-foreground/5 **:data-[slot$=-trigger]:focus:bg-foreground/10 **:data-[slot$=-trigger]:aria-expanded:bg-foreground/10! **:data-[variant=destructive]:focus:bg-foreground/10! **:data-[variant=destructive]:text-accent-foreground! **:data-[variant=destructive]:**:text-accent-foreground!", className )}
+          {...props}
+        >
+          <SelectScrollUpButton />
+          <SelectPrimitive.List>{children}</SelectPrimitive.List>
+          <SelectScrollDownButton />
+        </SelectPrimitive.Popup>
+      </SelectPrimitive.Positioner>
+    </SelectPrimitive.Portal>
+  )
+}
+
+function SelectLabel({
+  className,
+  ...props
+}: SelectPrimitive.GroupLabel.Props) {
+  return (
+    <SelectPrimitive.GroupLabel
+      data-slot="select-label"
+      className={cn("px-1.5 py-1 text-xs text-muted-foreground", className)}
+      {...props}
+    />
+  )
+}
+
+function SelectItem({
+  className,
+  children,
+  ...props
+}: SelectPrimitive.Item.Props) {
+  return (
+    <SelectPrimitive.Item
+      data-slot="select-item"
+      className={cn(
+        "relative flex w-full cursor-default items-center gap-1.5 rounded-md py-1 pr-8 pl-1.5 text-sm outline-hidden select-none focus:bg-accent focus:text-accent-foreground not-data-[variant=destructive]:focus:**:text-accent-foreground data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4 *:[span]:last:flex *:[span]:last:items-center *:[span]:last:gap-2",
+        className
+      )}
+      {...props}
+    >
+      <SelectPrimitive.ItemText className="flex flex-1 shrink-0 gap-2 whitespace-nowrap">
+        {children}
+      </SelectPrimitive.ItemText>
+      <SelectPrimitive.ItemIndicator
+        render={
+          <span className="pointer-events-none absolute right-2 flex size-4 items-center justify-center" />
+        }
+      >
+        <CheckIcon className="pointer-events-none" />
+      </SelectPrimitive.ItemIndicator>
+    </SelectPrimitive.Item>
+  )
+}
+
+function SelectSeparator({
+  className,
+  ...props
+}: SelectPrimitive.Separator.Props) {
+  return (
+    <SelectPrimitive.Separator
+      data-slot="select-separator"
+      className={cn("pointer-events-none -mx-1 my-1 h-px bg-border", className)}
+      {...props}
+    />
+  )
+}
+
+function SelectScrollUpButton({
+  className,
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.ScrollUpArrow>) {
+  return (
+    <SelectPrimitive.ScrollUpArrow
+      data-slot="select-scroll-up-button"
+      className={cn(
+        "top-0 z-10 flex w-full cursor-default items-center justify-center bg-popover py-1 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    >
+      <ChevronUpIcon
+      />
+    </SelectPrimitive.ScrollUpArrow>
+  )
+}
+
+function SelectScrollDownButton({
+  className,
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.ScrollDownArrow>) {
+  return (
+    <SelectPrimitive.ScrollDownArrow
+      data-slot="select-scroll-down-button"
+      className={cn(
+        "bottom-0 z-10 flex w-full cursor-default items-center justify-center bg-popover py-1 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    >
+      <ChevronDownIcon
+      />
+    </SelectPrimitive.ScrollDownArrow>
+  )
+}
+
+export {
+  Select,
+  SelectContent,
+  SelectGroup,
+  SelectItem,
+  SelectLabel,
+  SelectScrollDownButton,
+  SelectScrollUpButton,
+  SelectSeparator,
+  SelectTrigger,
+  SelectValue,
+}

frontend/src/components/ui/separator.tsx

@@ -0,0 +1,25 @@
+"use client"
+
+import { Separator as SeparatorPrimitive } from "@base-ui/react/separator"
+
+import { cn } from "@/lib/utils"
+
+function Separator({
+  className,
+  orientation = "horizontal",
+  ...props
+}: SeparatorPrimitive.Props) {
+  return (
+    <SeparatorPrimitive
+      data-slot="separator"
+      orientation={orientation}
+      className={cn(
+        "shrink-0 bg-border data-horizontal:h-px data-horizontal:w-full data-vertical:w-px data-vertical:self-stretch",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export { Separator }

frontend/src/components/ui/sheet.tsx

@@ -0,0 +1,136 @@
+import * as React from "react"
+import { Dialog as SheetPrimitive } from "@base-ui/react/dialog"
+
+import { cn } from "@/lib/utils"
+import { Button } from "@/components/ui/button"
+import { XIcon } from "lucide-react"
+
+function Sheet({ ...props }: SheetPrimitive.Root.Props) {
+  return <SheetPrimitive.Root data-slot="sheet" {...props} />
+}
+
+function SheetTrigger({ ...props }: SheetPrimitive.Trigger.Props) {
+  return <SheetPrimitive.Trigger data-slot="sheet-trigger" {...props} />
+}
+
+function SheetClose({ ...props }: SheetPrimitive.Close.Props) {
+  return <SheetPrimitive.Close data-slot="sheet-close" {...props} />
+}
+
+function SheetPortal({ ...props }: SheetPrimitive.Portal.Props) {
+  return <SheetPrimitive.Portal data-slot="sheet-portal" {...props} />
+}
+
+function SheetOverlay({ className, ...props }: SheetPrimitive.Backdrop.Props) {
+  return (
+    <SheetPrimitive.Backdrop
+      data-slot="sheet-overlay"
+      className={cn(
+        "fixed inset-0 z-50 bg-black/10 transition-opacity duration-150 data-ending-style:opacity-0 data-starting-style:opacity-0 supports-backdrop-filter:backdrop-blur-xs",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function SheetContent({
+  className,
+  children,
+  side = "right",
+  showCloseButton = true,
+  ...props
+}: SheetPrimitive.Popup.Props & {
+  side?: "top" | "right" | "bottom" | "left"
+  showCloseButton?: boolean
+}) {
+  return (
+    <SheetPortal>
+      <SheetOverlay />
+      <SheetPrimitive.Popup
+        data-slot="sheet-content"
+        data-side={side}
+        className={cn(
+          "fixed z-50 flex flex-col gap-4 bg-background bg-clip-padding text-sm shadow-lg transition duration-200 ease-in-out data-ending-style:opacity-0 data-starting-style:opacity-0 data-[side=bottom]:inset-x-0 data-[side=bottom]:bottom-0 data-[side=bottom]:h-auto data-[side=bottom]:border-t data-[side=bottom]:data-ending-style:translate-y-[2.5rem] data-[side=bottom]:data-starting-style:translate-y-[2.5rem] data-[side=left]:inset-y-0 data-[side=left]:left-0 data-[side=left]:h-full data-[side=left]:w-3/4 data-[side=left]:border-r data-[side=left]:data-ending-style:translate-x-[-2.5rem] data-[side=left]:data-starting-style:translate-x-[-2.5rem] data-[side=right]:inset-y-0 data-[side=right]:right-0 data-[side=right]:h-full data-[side=right]:w-3/4 data-[side=right]:border-l data-[side=right]:data-ending-style:translate-x-[2.5rem] data-[side=right]:data-starting-style:translate-x-[2.5rem] data-[side=top]:inset-x-0 data-[side=top]:top-0 data-[side=top]:h-auto data-[side=top]:border-b data-[side=top]:data-ending-style:translate-y-[-2.5rem] data-[side=top]:data-starting-style:translate-y-[-2.5rem] data-[side=left]:sm:max-w-sm data-[side=right]:sm:max-w-sm",
+          className
+        )}
+        {...props}
+      >
+        {children}
+        {showCloseButton && (
+          <SheetPrimitive.Close
+            data-slot="sheet-close"
+            render={
+              <Button
+                variant="ghost"
+                className="absolute top-3 right-3"
+                size="icon-sm"
+              />
+            }
+          >
+            <XIcon
+            />
+            <span className="sr-only">Close</span>
+          </SheetPrimitive.Close>
+        )}
+      </SheetPrimitive.Popup>
+    </SheetPortal>
+  )
+}
+
+function SheetHeader({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sheet-header"
+      className={cn("flex flex-col gap-0.5 p-4", className)}
+      {...props}
+    />
+  )
+}
+
+function SheetFooter({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sheet-footer"
+      className={cn("mt-auto flex flex-col gap-2 p-4", className)}
+      {...props}
+    />
+  )
+}
+
+function SheetTitle({ className, ...props }: SheetPrimitive.Title.Props) {
+  return (
+    <SheetPrimitive.Title
+      data-slot="sheet-title"
+      className={cn(
+        "font-heading text-base font-medium text-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function SheetDescription({
+  className,
+  ...props
+}: SheetPrimitive.Description.Props) {
+  return (
+    <SheetPrimitive.Description
+      data-slot="sheet-description"
+      className={cn("text-sm text-muted-foreground", className)}
+      {...props}
+    />
+  )
+}
+
+export {
+  Sheet,
+  SheetTrigger,
+  SheetClose,
+  SheetContent,
+  SheetHeader,
+  SheetFooter,
+  SheetTitle,
+  SheetDescription,
+}

frontend/src/components/ui/table.tsx

@@ -0,0 +1,116 @@
+"use client"
+
+import * as React from "react"
+
+import { cn } from "@/lib/utils"
+
+function Table({ className, ...props }: React.ComponentProps<"table">) {
+  return (
+    <div
+      data-slot="table-container"
+      className="relative w-full overflow-x-auto"
+    >
+      <table
+        data-slot="table"
+        className={cn("w-full caption-bottom text-sm", className)}
+        {...props}
+      />
+    </div>
+  )
+}
+
+function TableHeader({ className, ...props }: React.ComponentProps<"thead">) {
+  return (
+    <thead
+      data-slot="table-header"
+      className={cn("[&_tr]:border-b", className)}
+      {...props}
+    />
+  )
+}
+
+function TableBody({ className, ...props }: React.ComponentProps<"tbody">) {
+  return (
+    <tbody
+      data-slot="table-body"
+      className={cn("[&_tr:last-child]:border-0", className)}
+      {...props}
+    />
+  )
+}
+
+function TableFooter({ className, ...props }: React.ComponentProps<"tfoot">) {
+  return (
+    <tfoot
+      data-slot="table-footer"
+      className={cn(
+        "border-t bg-muted/50 font-medium [&>tr]:last:border-b-0",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function TableRow({ className, ...props }: React.ComponentProps<"tr">) {
+  return (
+    <tr
+      data-slot="table-row"
+      className={cn(
+        "border-b transition-colors hover:bg-muted/50 data-[state=selected]:bg-muted",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function TableHead({ className, ...props }: React.ComponentProps<"th">) {
+  return (
+    <th
+      data-slot="table-head"
+      className={cn(
+        "h-10 px-2 text-left align-middle font-medium whitespace-nowrap text-foreground [&:has([role=checkbox])]:pr-0",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function TableCell({ className, ...props }: React.ComponentProps<"td">) {
+  return (
+    <td
+      data-slot="table-cell"
+      className={cn(
+        "p-2 align-middle whitespace-nowrap [&:has([role=checkbox])]:pr-0",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function TableCaption({
+  className,
+  ...props
+}: React.ComponentProps<"caption">) {
+  return (
+    <caption
+      data-slot="table-caption"
+      className={cn("mt-4 text-sm text-muted-foreground", className)}
+      {...props}
+    />
+  )
+}
+
+export {
+  Table,
+  TableHeader,
+  TableBody,
+  TableFooter,
+  TableHead,
+  TableRow,
+  TableCell,
+  TableCaption,
+}

frontend/src/components/ui/tabs.tsx

@@ -0,0 +1,80 @@
+import { Tabs as TabsPrimitive } from "@base-ui/react/tabs"
+import { cva, type VariantProps } from "class-variance-authority"
+
+import { cn } from "@/lib/utils"
+
+function Tabs({
+  className,
+  orientation = "horizontal",
+  ...props
+}: TabsPrimitive.Root.Props) {
+  return (
+    <TabsPrimitive.Root
+      data-slot="tabs"
+      data-orientation={orientation}
+      className={cn(
+        "group/tabs flex gap-2 data-horizontal:flex-col",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+const tabsListVariants = cva(
+  "group/tabs-list inline-flex w-fit items-center justify-center rounded-lg p-[3px] text-muted-foreground group-data-horizontal/tabs:h-8 group-data-vertical/tabs:h-fit group-data-vertical/tabs:flex-col data-[variant=line]:rounded-none",
+  {
+    variants: {
+      variant: {
+        default: "bg-muted",
+        line: "gap-1 bg-transparent",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+    },
+  }
+)
+
+function TabsList({
+  className,
+  variant = "default",
+  ...props
+}: TabsPrimitive.List.Props & VariantProps<typeof tabsListVariants>) {
+  return (
+    <TabsPrimitive.List
+      data-slot="tabs-list"
+      data-variant={variant}
+      className={cn(tabsListVariants({ variant }), className)}
+      {...props}
+    />
+  )
+}
+
+function TabsTrigger({ className, ...props }: TabsPrimitive.Tab.Props) {
+  return (
+    <TabsPrimitive.Tab
+      data-slot="tabs-trigger"
+      className={cn(
+        "relative inline-flex h-[calc(100%-1px)] flex-1 items-center justify-center gap-1.5 rounded-md border border-transparent px-1.5 py-0.5 text-sm font-medium whitespace-nowrap text-foreground/60 transition-all group-data-vertical/tabs:w-full group-data-vertical/tabs:justify-start hover:text-foreground focus-visible:border-ring focus-visible:ring-[3px] focus-visible:ring-ring/50 focus-visible:outline-1 focus-visible:outline-ring disabled:pointer-events-none disabled:opacity-50 aria-disabled:pointer-events-none aria-disabled:opacity-50 dark:text-muted-foreground dark:hover:text-foreground group-data-[variant=default]/tabs-list:data-active:shadow-sm group-data-[variant=line]/tabs-list:data-active:shadow-none [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        "group-data-[variant=line]/tabs-list:bg-transparent group-data-[variant=line]/tabs-list:data-active:bg-transparent dark:group-data-[variant=line]/tabs-list:data-active:border-transparent dark:group-data-[variant=line]/tabs-list:data-active:bg-transparent",
+        "data-active:bg-background data-active:text-foreground dark:data-active:border-input dark:data-active:bg-input/30 dark:data-active:text-foreground",
+        "after:absolute after:bg-foreground after:opacity-0 after:transition-opacity group-data-horizontal/tabs:after:inset-x-0 group-data-horizontal/tabs:after:bottom-[-5px] group-data-horizontal/tabs:after:h-0.5 group-data-vertical/tabs:after:inset-y-0 group-data-vertical/tabs:after:-right-1 group-data-vertical/tabs:after:w-0.5 group-data-[variant=line]/tabs-list:data-active:after:opacity-100",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function TabsContent({ className, ...props }: TabsPrimitive.Panel.Props) {
+  return (
+    <TabsPrimitive.Panel
+      data-slot="tabs-content"
+      className={cn("flex-1 text-sm outline-none", className)}
+      {...props}
+    />
+  )
+}
+
+export { Tabs, TabsList, TabsTrigger, TabsContent, tabsListVariants }

frontend/src/components/ui/textarea.tsx

@@ -0,0 +1,18 @@
+import * as React from "react"
+
+import { cn } from "@/lib/utils"
+
+function Textarea({ className, ...props }: React.ComponentProps<"textarea">) {
+  return (
+    <textarea
+      data-slot="textarea"
+      className={cn(
+        "flex field-sizing-content min-h-16 w-full rounded-lg border border-input bg-transparent px-2.5 py-2 text-base transition-colors outline-none placeholder:text-muted-foreground focus-visible:border-ring focus-visible:ring-3 focus-visible:ring-ring/50 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",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export { Textarea }

frontend/src/hooks/useSettings.ts

@@ -0,0 +1,55 @@
+import { useEffect, useState, useCallback } from 'react';
+import {
+  getSettings,
+  updateSettings,
+  type UserSettingsData,
+  type SectionSettings,
+} from '../api';
+
+const DEFAULT_SETTINGS: UserSettingsData = {
+  dashboard: {
+    sections: {
+      crc_accounts: { label: 'CRC Accounts', color: 'primary', cardColor: 'primary', visible: true, order: 0, expanded: false },
+      usd_accounts: { label: 'USD Accounts', color: 'chart-1', cardColor: 'chart-1', visible: true, order: 1, expanded: false },
+      pension: { label: 'Pension', color: 'chart-2', cardColor: 'chart-2', visible: true, order: 2, expanded: false },
+      savings: { label: 'Savings', color: 'chart-3', cardColor: 'chart-3', visible: true, order: 3, expanded: false },
+      liabilities: { label: 'Liabilities', color: 'destructive', cardColor: 'destructive', visible: true, order: 4, expanded: false },
+      crypto: { label: 'Crypto', color: 'chart-4', cardColor: 'chart-4', visible: true, order: 5, expanded: false },
+    },
+  },
+};
+
+export function useSettings() {
+  const [settings, setSettings] = useState<UserSettingsData>(DEFAULT_SETTINGS);
+  const [loading, setLoading] = useState(true);
+
+  useEffect(() => {
+    getSettings()
+      .then((r) => setSettings(r.data.data))
+      .catch(() => {}) // use defaults on error
+      .finally(() => setLoading(false));
+  }, []);
+
+  const patchSection = useCallback(
+    async (sectionId: string, partial: Partial<SectionSettings>) => {
+      setSettings((prev) => {
+        const updated = {
+          ...prev,
+          dashboard: {
+            ...prev.dashboard,
+            sections: {
+              ...prev.dashboard.sections,
+              [sectionId]: { ...prev.dashboard.sections[sectionId], ...partial },
+            },
+          },
+        };
+        // Fire-and-forget save
+        updateSettings(updated).catch(console.error);
+        return updated;
+      });
+    },
+    []
+  );
+
+  return { settings, loading, patchSection };
+}

frontend/src/index.css

@@ -1,46 +1,131 @@
-@import 'tailwindcss';
+@import "tailwindcss";
+@import "tw-animate-css";
+@import "shadcn/tailwind.css";
+@import "@fontsource-variable/noto-sans";
+@import "@fontsource-variable/ibm-plex-sans";
 
-@custom-variant dark (&:where(.dark, .dark *));
+@custom-variant dark (&:is(.dark *));
 
-@theme {
-  --color-surface: #FFFDF5;
-  --color-surface-secondary: #fefae0;
-  --color-surface-card: rgba(96, 108, 56, 0.08);
-  --color-surface-hover: rgba(96, 108, 56, 0.12);
-  --color-border: rgba(96, 108, 56, 0.25);
-  --color-border-subtle: rgba(96, 108, 56, 0.15);
-  --color-text-primary: #283618;
-  --color-text-secondary: #606C38;
-  --color-text-muted: #8a9462;
-  --color-text-faint: #c2c9a7;
-  --color-input-bg: #f5f1d0;
+:root {
+    --background: oklch(1 0 0);
+    --foreground: oklch(0.141 0.005 285.823);
+    --card: oklch(1 0 0);
+    --card-foreground: oklch(0.141 0.005 285.823);
+    --popover: oklch(1 0 0);
+    --popover-foreground: oklch(0.141 0.005 285.823);
+    --primary: oklch(0.511 0.096 186.391);
+    --primary-foreground: oklch(0.984 0.014 180.72);
+    --secondary: oklch(0.967 0.001 286.375);
+    --secondary-foreground: oklch(0.21 0.006 285.885);
+    --muted: oklch(0.967 0.001 286.375);
+    --muted-foreground: oklch(0.552 0.016 285.938);
+    --accent: oklch(0.967 0.001 286.375);
+    --accent-foreground: oklch(0.21 0.006 285.885);
+    --destructive: oklch(0.577 0.245 27.325);
+    --border: oklch(0.92 0.004 286.32);
+    --input: oklch(0.92 0.004 286.32);
+    --ring: oklch(0.705 0.015 286.067);
+    --chart-1: oklch(0.905 0.182 98.111);
+    --chart-2: oklch(0.795 0.184 86.047);
+    --chart-3: oklch(0.681 0.162 75.834);
+    --chart-4: oklch(0.554 0.135 66.442);
+    --chart-5: oklch(0.476 0.114 61.907);
+    --radius: 0.625rem;
+    --sidebar: oklch(0.985 0 0);
+    --sidebar-foreground: oklch(0.141 0.005 285.823);
+    --sidebar-primary: oklch(0.6 0.118 184.704);
+    --sidebar-primary-foreground: oklch(0.984 0.014 180.72);
+    --sidebar-accent: oklch(0.967 0.001 286.375);
+    --sidebar-accent-foreground: oklch(0.21 0.006 285.885);
+    --sidebar-border: oklch(0.92 0.004 286.32);
+    --sidebar-ring: oklch(0.705 0.015 286.067);
 }
 
 .dark {
-  --color-surface: #020617;
-  --color-surface-secondary: #0f172a;
-  --color-surface-card: rgba(15, 23, 42, 0.6);
-  --color-surface-hover: rgba(30, 41, 59, 0.3);
-  --color-border: rgba(30, 41, 59, 0.6);
-  --color-border-subtle: rgba(30, 41, 59, 0.4);
-  --color-text-primary: #ffffff;
-  --color-text-secondary: #94a3b8;
-  --color-text-muted: #64748b;
-  --color-text-faint: #334155;
-  --color-input-bg: rgba(15, 23, 42, 0.8);
+    --background: oklch(0.141 0.005 285.823);
+    --foreground: oklch(0.985 0 0);
+    --card: oklch(0.21 0.006 285.885);
+    --card-foreground: oklch(0.985 0 0);
+    --popover: oklch(0.21 0.006 285.885);
+    --popover-foreground: oklch(0.985 0 0);
+    --primary: oklch(0.437 0.078 188.216);
+    --primary-foreground: oklch(0.984 0.014 180.72);
+    --secondary: oklch(0.274 0.006 286.033);
+    --secondary-foreground: oklch(0.985 0 0);
+    --muted: oklch(0.274 0.006 286.033);
+    --muted-foreground: oklch(0.705 0.015 286.067);
+    --accent: oklch(0.274 0.006 286.033);
+    --accent-foreground: oklch(0.985 0 0);
+    --destructive: oklch(0.704 0.191 22.216);
+    --border: oklch(1 0 0 / 10%);
+    --input: oklch(1 0 0 / 15%);
+    --ring: oklch(0.552 0.016 285.938);
+    --chart-1: oklch(0.905 0.182 98.111);
+    --chart-2: oklch(0.795 0.184 86.047);
+    --chart-3: oklch(0.681 0.162 75.834);
+    --chart-4: oklch(0.554 0.135 66.442);
+    --chart-5: oklch(0.476 0.114 61.907);
+    --sidebar: oklch(0.21 0.006 285.885);
+    --sidebar-foreground: oklch(0.985 0 0);
+    --sidebar-primary: oklch(0.704 0.14 182.503);
+    --sidebar-primary-foreground: oklch(0.277 0.046 192.524);
+    --sidebar-accent: oklch(0.274 0.006 286.033);
+    --sidebar-accent-foreground: oklch(0.985 0 0);
+    --sidebar-border: oklch(1 0 0 / 10%);
+    --sidebar-ring: oklch(0.552 0.016 285.938);
 }
 
-body {
-  background-color: var(--color-surface);
-  color: var(--color-text-primary);
-  transition: background-color 0.2s, color 0.2s;
+@theme inline {
+    --font-sans: 'Noto Sans Variable', sans-serif;
+    --font-heading: 'IBM Plex Sans Variable', sans-serif;
+    --color-sidebar-ring: var(--sidebar-ring);
+    --color-sidebar-border: var(--sidebar-border);
+    --color-sidebar-accent-foreground: var(--sidebar-accent-foreground);
+    --color-sidebar-accent: var(--sidebar-accent);
+    --color-sidebar-primary-foreground: var(--sidebar-primary-foreground);
+    --color-sidebar-primary: var(--sidebar-primary);
+    --color-sidebar-foreground: var(--sidebar-foreground);
+    --color-sidebar: var(--sidebar);
+    --color-chart-5: var(--chart-5);
+    --color-chart-4: var(--chart-4);
+    --color-chart-3: var(--chart-3);
+    --color-chart-2: var(--chart-2);
+    --color-chart-1: var(--chart-1);
+    --color-ring: var(--ring);
+    --color-input: var(--input);
+    --color-border: var(--border);
+    --color-destructive: var(--destructive);
+    --color-accent-foreground: var(--accent-foreground);
+    --color-accent: var(--accent);
+    --color-muted-foreground: var(--muted-foreground);
+    --color-muted: var(--muted);
+    --color-secondary-foreground: var(--secondary-foreground);
+    --color-secondary: var(--secondary);
+    --color-primary-foreground: var(--primary-foreground);
+    --color-primary: var(--primary);
+    --color-popover-foreground: var(--popover-foreground);
+    --color-popover: var(--popover);
+    --color-card-foreground: var(--card-foreground);
+    --color-card: var(--card);
+    --color-foreground: var(--foreground);
+    --color-background: var(--background);
+    --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);
+    --radius-2xl: calc(var(--radius) * 1.8);
+    --radius-3xl: calc(var(--radius) * 2.2);
+    --radius-4xl: calc(var(--radius) * 2.6);
 }
 
-@keyframes fade-in {
-  from { opacity: 0; transform: translateY(8px); }
-  to { opacity: 1; transform: translateY(0); }
-}
-
-.animate-fade-in {
-  animation: fade-in 0.4s ease-out both;
+@layer base {
+  * {
+    @apply border-border outline-ring/50;
+    }
+  body {
+    @apply bg-background text-foreground;
+    }
+  html {
+    @apply font-sans;
+    }
 }

frontend/src/lib/colors.ts

@@ -0,0 +1,25 @@
+export interface ColorClasses {
+  bg: string;
+  ring: string;
+  text: string;
+  borderLeft: string;
+}
+
+export const COLOR_MAP: Record<string, ColorClasses> = {
+  'primary':     { bg: 'bg-primary/10',     ring: 'ring-primary/20',     text: 'text-primary',              borderLeft: 'border-l-primary' },
+  'destructive': { bg: 'bg-destructive/10',  ring: 'ring-destructive/20', text: 'text-destructive',          borderLeft: 'border-l-destructive' },
+  'chart-1':     { bg: 'bg-chart-1/10',      ring: 'ring-chart-1/20',     text: 'text-chart-1',              borderLeft: 'border-l-chart-1' },
+  'chart-2':     { bg: 'bg-chart-2/10',      ring: 'ring-chart-2/20',     text: 'text-chart-2',              borderLeft: 'border-l-chart-2' },
+  'chart-3':     { bg: 'bg-chart-3/10',      ring: 'ring-chart-3/20',     text: 'text-chart-3',              borderLeft: 'border-l-chart-3' },
+  'chart-4':     { bg: 'bg-chart-4/10',      ring: 'ring-chart-4/20',     text: 'text-chart-4',              borderLeft: 'border-l-chart-4' },
+  'chart-5':     { bg: 'bg-chart-5/10',      ring: 'ring-chart-5/20',     text: 'text-chart-5',              borderLeft: 'border-l-chart-5' },
+  'accent':      { bg: 'bg-accent/10',       ring: 'ring-accent/20',      text: 'text-accent-foreground',    borderLeft: 'border-l-accent' },
+  'muted':       { bg: 'bg-muted/50',        ring: 'ring-muted',          text: 'text-muted-foreground',     borderLeft: 'border-l-muted' },
+  'secondary':   { bg: 'bg-secondary/50',    ring: 'ring-secondary',      text: 'text-secondary-foreground', borderLeft: 'border-l-secondary' },
+};
+
+export const COLOR_OPTIONS = Object.keys(COLOR_MAP);
+
+export function getColorClasses(colorName: string): ColorClasses {
+  return COLOR_MAP[colorName] ?? COLOR_MAP['primary'];
+}

frontend/src/lib/format.ts

@@ -0,0 +1,13 @@
+export function formatAmount(amount: number, currency: string) {
+  const abs = Math.abs(amount);
+  if (currency === 'BTC') return abs.toFixed(8);
+  if (currency === 'XMR') return abs.toFixed(4);
+  if (currency === 'USD') {
+    return `$${abs.toLocaleString('en-US', { minimumFractionDigits: 2, maximumFractionDigits: 2 })}`;
+  }
+  return `₡${abs.toLocaleString('es-CR', { minimumFractionDigits: 2, maximumFractionDigits: 2 })}`;
+}
+
+export function formatDate(dateStr: string) {
+  return new Date(dateStr).toLocaleDateString('en-US', { month: 'short', day: 'numeric' });
+}

frontend/src/lib/utils.ts

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

frontend/src/pages/Analytics.tsx

@@ -7,8 +7,6 @@ import {
   Bar,
   XAxis,
   YAxis,
-  Tooltip,
-  ResponsiveContainer,
   LineChart,
   Line,
 } from 'recharts';
@@ -16,7 +14,13 @@ import { BarChart3 } from 'lucide-react';
 
 import api from '../api';
 import BillingCycleSelector from '../components/BillingCycleSelector';
-import { useTheme } from '../ThemeContext';
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
+import {
+  ChartContainer,
+  ChartTooltip,
+  ChartTooltipContent,
+  type ChartConfig,
+} from '@/components/ui/chart';
 
 interface CategorySpending {
   category_id: number | null;
@@ -42,18 +46,30 @@ interface DailySpending {
 }
 
 const COLORS = [
-  '#606C38', '#BC6C25', '#8b5cf6', '#DDA15E', '#ef4444',
-  '#ec4899', '#283618', '#f97316', '#6366f1', '#8a9462',
-  '#e879f9', '#c2c9a7', '#fb923c', '#a78bfa', '#7a8a4a',
-  '#fbbf24',
+  'var(--chart-1)', 'var(--chart-2)', 'var(--chart-3)', 'var(--chart-4)', 'var(--chart-5)',
+  'oklch(0.7 0.15 30)', 'oklch(0.65 0.2 300)', 'oklch(0.6 0.15 150)',
+  'oklch(0.75 0.12 60)', 'oklch(0.55 0.18 250)',
 ];
 
 function formatCRC(value: number) {
   return `₡${Math.round(value).toLocaleString('es-CR')}`;
 }
 
+const trendChartConfig = {
+  total_crc: {
+    label: 'Total CRC',
+    color: 'var(--chart-1)',
+  },
+} satisfies ChartConfig;
+
+const dailyChartConfig = {
+  total: {
+    label: 'Daily Spending',
+    color: 'var(--chart-2)',
+  },
+} satisfies ChartConfig;
+
 export default function Analytics() {
-  const { theme } = useTheme();
   const [cycle, setCycle] = useState<{ year: number; month: number } | null>(null);
   const [byCategory, setByCategory] = useState<CategorySpending[]>([]);
   const [trend, setTrend] = useState<MonthlyTrend[]>([]);
@@ -79,42 +95,44 @@ export default function Analytics() {
       .catch(console.error);
   }, [cycle]);
 
-  const tooltipStyle = {
-    background: theme === 'dark' ? '#1e293b' : '#FEFAE0',
-    border: `1px solid ${theme === 'dark' ? '#334155' : 'rgba(96,108,56,0.25)'}`,
-    borderRadius: '8px',
-    fontSize: '12px',
-    color: theme === 'dark' ? '#e2e8f0' : '#283618',
+  // Build dynamic chart config for pie chart
+  const pieChartConfig = byCategory.reduce<ChartConfig>((acc, cat, i) => {
+    acc[cat.category_name] = {
+      label: cat.category_name,
+      color: COLORS[i % COLORS.length],
     };
-
-  const tickColor = theme === 'dark' ? '#64748b' : '#8a9462';
+    return acc;
+  }, {});
 
   return (
     <div className="space-y-6">
       <div className="flex flex-col sm:flex-row sm:items-center justify-between gap-4">
         <div>
           <div className="flex items-center gap-2">
-            <BarChart3 className="w-5 h-5 text-[#606C38] dark:text-[#7a8a4a]" />
-            <h1 className="text-2xl font-bold">Analytics</h1>
+            <BarChart3 className="w-5 h-5 text-primary" />
+            <h1 className="text-2xl font-bold font-heading">Analytics</h1>
           </div>
-          <p className="text-sm text-text-muted mt-1">Spending breakdown and trends</p>
+          <p className="text-sm text-muted-foreground mt-1">Spending breakdown and trends</p>
         </div>
         <BillingCycleSelector value={cycle} onChange={setCycle} />
       </div>
 
       <div className="grid grid-cols-1 lg:grid-cols-2 gap-6">
         {/* Spending by Category - Donut */}
-        <div className="bg-surface-card border border-border rounded-xl p-5">
-          <h2 className="text-sm font-semibold text-text-secondary uppercase tracking-wider mb-4">
+        <Card>
+          <CardHeader>
+            <CardTitle className="text-sm uppercase tracking-wider text-muted-foreground">
               Spending by Category
-          </h2>
+            </CardTitle>
+          </CardHeader>
+          <CardContent>
             {byCategory.length === 0 ? (
-            <div className="h-64 flex items-center justify-center text-text-faint text-sm">
+              <div className="h-64 flex items-center justify-center text-muted-foreground text-sm">
                 No data for this period
               </div>
             ) : (
               <div className="flex flex-col items-center">
-              <ResponsiveContainer width="100%" height={260}>
+                <ChartContainer config={pieChartConfig} className="h-[260px] w-full">
                   <PieChart>
                     <Pie
                       data={byCategory}
@@ -131,12 +149,15 @@ export default function Analytics() {
                         <Cell key={i} fill={COLORS[i % COLORS.length]} />
                       ))}
                     </Pie>
-                  <Tooltip
-                    contentStyle={tooltipStyle}
-                    formatter={(value: any) => formatCRC(Number(value))}
+                    <ChartTooltip
+                      content={
+                        <ChartTooltipContent
+                          formatter={(value) => formatCRC(Number(value))}
+                        />
+                      }
                     />
                   </PieChart>
-              </ResponsiveContainer>
+                </ChartContainer>
 
                 {/* Legend */}
                 <div className="grid grid-cols-2 gap-x-6 gap-y-1.5 mt-2 w-full max-w-md">
@@ -146,64 +167,72 @@ export default function Analytics() {
                         className="w-2.5 h-2.5 rounded-full flex-shrink-0"
                         style={{ background: COLORS[i % COLORS.length] }}
                       />
-                    <span className="text-text-secondary truncate">{cat.category_name}</span>
-                    <span className="text-text-faint ml-auto">{cat.percentage}%</span>
+                      <span className="text-muted-foreground truncate">{cat.category_name}</span>
+                      <span className="text-muted-foreground/60 ml-auto">{cat.percentage}%</span>
                     </div>
                   ))}
                 </div>
               </div>
             )}
-        </div>
+          </CardContent>
+        </Card>
 
         {/* Monthly Trend - Bar */}
-        <div className="bg-surface-card border border-border rounded-xl p-5">
-          <h2 className="text-sm font-semibold text-text-secondary uppercase tracking-wider mb-4">
+        <Card>
+          <CardHeader>
+            <CardTitle className="text-sm uppercase tracking-wider text-muted-foreground">
               Monthly Spending (CRC)
-          </h2>
+            </CardTitle>
+          </CardHeader>
+          <CardContent>
             {trend.length === 0 ? (
-            <div className="h-64 flex items-center justify-center text-text-faint text-sm">
+              <div className="h-64 flex items-center justify-center text-muted-foreground text-sm">
                 No data
               </div>
             ) : (
-            <ResponsiveContainer width="100%" height={300}>
+              <ChartContainer config={trendChartConfig} className="h-[300px] w-full">
                 <BarChart data={trend}>
                   <XAxis
                     dataKey="label"
-                  tick={{ fill: tickColor, fontSize: 11 }}
                     axisLine={false}
                     tickLine={false}
                   />
                   <YAxis
-                  tick={{ fill: tickColor, fontSize: 11 }}
                     axisLine={false}
                     tickLine={false}
                     tickFormatter={(v) => `₡${(v / 1000).toFixed(0)}k`}
                   />
-                <Tooltip
-                  contentStyle={tooltipStyle}
-                  formatter={(value: any) => formatCRC(Number(value))}
+                  <ChartTooltip
+                    content={
+                      <ChartTooltipContent
+                        formatter={(value) => formatCRC(Number(value))}
                       />
-                <Bar dataKey="total_crc" fill="#606C38" radius={[4, 4, 0, 0]} />
+                    }
+                  />
+                  <Bar dataKey="total_crc" fill="var(--color-total_crc)" radius={[4, 4, 0, 0]} />
                 </BarChart>
-            </ResponsiveContainer>
+              </ChartContainer>
             )}
-        </div>
+          </CardContent>
+        </Card>
 
         {/* Daily Spending - Line */}
-        <div className="bg-surface-card border border-border rounded-xl p-5 lg:col-span-2">
-          <h2 className="text-sm font-semibold text-text-secondary uppercase tracking-wider mb-4">
+        <Card className="lg:col-span-2">
+          <CardHeader>
+            <CardTitle className="text-sm uppercase tracking-wider text-muted-foreground">
               Daily Spending
-          </h2>
+            </CardTitle>
+          </CardHeader>
+          <CardContent>
             {daily.length === 0 ? (
-            <div className="h-48 flex items-center justify-center text-text-faint text-sm">
+              <div className="h-48 flex items-center justify-center text-muted-foreground text-sm">
                 No data for this period
               </div>
             ) : (
-            <ResponsiveContainer width="100%" height={240}>
+              <ChartContainer config={dailyChartConfig} className="h-[240px] w-full">
                 <LineChart data={daily}>
                   <XAxis
                     dataKey="date"
-                  tick={{ fill: tickColor, fontSize: 10 }}
                     axisLine={false}
                     tickLine={false}
                     tickFormatter={(v) => {
@@ -212,36 +241,44 @@ export default function Analytics() {
                     }}
                   />
                   <YAxis
-                  tick={{ fill: tickColor, fontSize: 11 }}
                     axisLine={false}
                     tickLine={false}
                     tickFormatter={(v) => `₡${(v / 1000).toFixed(0)}k`}
                   />
-                <Tooltip
-                  contentStyle={tooltipStyle}
-                  formatter={(value: any) => formatCRC(Number(value))}
-                  labelFormatter={(label) => new Date(label).toLocaleDateString('en-US', { month: 'short', day: 'numeric' })}
+                  <ChartTooltip
+                    content={
+                      <ChartTooltipContent
+                        formatter={(value) => formatCRC(Number(value))}
+                        labelFormatter={(label) =>
+                          new Date(label).toLocaleDateString('en-US', { month: 'short', day: 'numeric' })
+                        }
+                      />
+                    }
                   />
                   <Line
                     type="monotone"
                     dataKey="total"
-                  stroke="#BC6C25"
+                    stroke="var(--color-total)"
                     strokeWidth={2}
-                  dot={{ fill: '#BC6C25', r: 3 }}
+                    dot={{ fill: 'var(--color-total)', r: 3 }}
                     activeDot={{ r: 5 }}
                   />
                 </LineChart>
-            </ResponsiveContainer>
+              </ChartContainer>
             )}
-        </div>
+          </CardContent>
+        </Card>
       </div>
 
       {/* Top categories summary */}
       {byCategory.length > 0 && (
-        <div className="bg-surface-card border border-border rounded-xl p-5">
-          <h2 className="text-sm font-semibold text-text-secondary uppercase tracking-wider mb-4">
+        <Card>
+          <CardHeader>
+            <CardTitle className="text-sm uppercase tracking-wider text-muted-foreground">
               Top Categories
-          </h2>
+            </CardTitle>
+          </CardHeader>
+          <CardContent>
             <div className="space-y-3">
               {byCategory.slice(0, 8).map((cat, i) => (
                 <div key={cat.category_name} className="flex items-center gap-3">
@@ -250,11 +287,11 @@ export default function Analytics() {
                     style={{ background: COLORS[i % COLORS.length] }}
                   />
                   <span className="text-sm flex-1">{cat.category_name}</span>
-                <span className="text-xs text-text-muted">{cat.count} txns</span>
+                  <span className="text-xs text-muted-foreground">{cat.count} txns</span>
                   <span className="text-sm font-mono font-medium w-32 text-right">
                     {formatCRC(cat.total)}
                   </span>
-                <div className="w-24 bg-surface-hover rounded-full h-1.5">
+                  <div className="w-24 bg-muted rounded-full h-1.5">
                     <div
                       className="h-1.5 rounded-full"
                       style={{
@@ -266,7 +303,8 @@ export default function Analytics() {
                 </div>
               ))}
             </div>
-        </div>
+          </CardContent>
+        </Card>
       )}
     </div>
   );

frontend/src/pages/Dashboard.tsx

@@ -1,4 +1,4 @@
-import { useEffect, useState } from 'react';
+import { useEffect, useState, useMemo } from 'react';
 import { Link } from 'react-router-dom';
 import {
   ArrowRight,
@@ -12,31 +12,36 @@ import {
 } from 'lucide-react';
 
 import api, { type Account, type Transaction } from '../api';
+import { useSettings } from '@/hooks/useSettings';
+import { formatAmount, formatDate } from '@/lib/format';
+import DashboardSection from '@/components/DashboardSection';
+import SectionConfigDialog from '@/components/SectionConfigDialog';
+import { Button } from '@/components/ui/button';
+import { Input } from '@/components/ui/input';
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
+import { cn } from '@/lib/utils';
 
-function formatAmount(amount: number, currency: string) {
-  const abs = Math.abs(amount);
-  if (currency === 'BTC') return abs.toFixed(8);
-  if (currency === 'XMR') return abs.toFixed(4);
-  if (currency === 'USD') {
-    return `$${abs.toLocaleString('en-US', { minimumFractionDigits: 2, maximumFractionDigits: 2 })}`;
-  }
-  return `₡${abs.toLocaleString('es-CR', { minimumFractionDigits: 2, maximumFractionDigits: 2 })}`;
+// --- Section definitions ---
+
+interface SectionDef {
+  filterFn: (a: Account) => boolean;
+  totalCurrency: string; // empty string = no total
 }
 
-function formatDate(dateStr: string) {
-  return new Date(dateStr).toLocaleDateString('en-US', { month: 'short', day: 'numeric' });
-}
+const SECTION_DEFS: Record<string, SectionDef> = {
+  crc_accounts: { filterFn: (a) => a.account_type === 'BANK' && a.currency === 'CRC', totalCurrency: 'CRC' },
+  usd_accounts: { filterFn: (a) => a.account_type === 'BANK' && a.currency === 'USD', totalCurrency: 'USD' },
+  pension:      { filterFn: (a) => a.account_type === 'PENSION', totalCurrency: 'CRC' },
+  savings:      { filterFn: (a) => a.account_type === 'SAVINGS', totalCurrency: 'CRC' },
+  liabilities:  { filterFn: (a) => a.account_type === 'LIABILITY', totalCurrency: '' },
+  crypto:       { filterFn: (a) => a.account_type === 'CRYPTO', totalCurrency: '' },
+};
 
-// --- Reusable card for an account balance ---
-function AccountCard({
-  account,
-  editingId,
-  editValue,
-  setEditValue,
-  startEditing,
-  saveBalance,
-  cancelEditing,
-}: {
+const BANK_ORDER = ['BAC', 'BCR', 'DAVIVIENDA'];
+
+// --- AccountRow ---
+
+interface AccountRowProps {
   account: Account;
   editingId: number | null;
   editValue: string;
@@ -44,20 +49,29 @@ function AccountCard({
   startEditing: (a: Account) => void;
   saveBalance: (id: number) => void;
   cancelEditing: () => void;
-}) {
-  const badgeLabel = account.account_type === 'CRYPTO' ? account.label : (account.bank === 'DAVIVIENDA' ? 'DAV' : account.bank);
+}
+
+function AccountRow({
+  account,
+  editingId,
+  editValue,
+  setEditValue,
+  startEditing,
+  saveBalance,
+  cancelEditing,
+}: AccountRowProps) {
+  const isLiability = account.account_type === 'LIABILITY';
+  const isCrypto = account.account_type === 'CRYPTO';
+  const label = isCrypto ? account.label : (account.bank === 'DAVIVIENDA' ? 'DAV' : account.bank);
   const isEditing = editingId === account.id;
 
   return (
-    <div className="group animate-fade-in bg-surface dark:bg-slate-900 border border-border dark:border-slate-700 rounded-xl p-5 shadow-sm dark:shadow-none hover:bg-surface-hover dark:hover:bg-slate-800/60 transition-colors h-[104px] flex flex-col justify-between">
-      <div className="flex items-center justify-end">
-        <span className="text-sm font-bold font-mono text-text-secondary dark:text-slate-300 bg-surface-secondary dark:bg-slate-800 px-2.5 py-0.5 rounded">
-          {badgeLabel}
-        </span>
-      </div>
+    <div className="flex items-center justify-between px-3 py-2.5 hover:bg-muted/30 transition-colors group">
+      <span className="text-sm font-medium text-muted-foreground">{label}</span>
+
       {isEditing ? (
         <div className="flex items-center gap-2">
-          <input
+          <Input
             type="number"
             step="0.01"
             value={editValue}
@@ -67,36 +81,40 @@ function AccountCard({
               if (e.key === 'Escape') cancelEditing();
             }}
             autoFocus
-            className="w-full text-2xl font-bold font-mono tracking-tight bg-input-bg border border-[#606C38]/40 rounded-lg px-2 py-1 focus:outline-none focus:border-[#606C38] transition-colors"
+            className="text-sm font-bold font-mono tracking-tight h-auto py-1 w-40"
           />
-          <button onClick={() => saveBalance(account.id)} className="p-1 text-[#606C38] dark:text-[#7a8a4a]">
-            <Check className="w-4 h-4" />
-          </button>
-          <button onClick={cancelEditing} className="p-1 text-text-muted hover:text-text-secondary">
-            <X className="w-4 h-4" />
-          </button>
+          <Button variant="ghost" size="icon-xs" onClick={() => saveBalance(account.id)} title="Save" aria-label="Save balance">
+            <Check className="w-3.5 h-3.5" />
+          </Button>
+          <Button variant="ghost" size="icon-xs" onClick={cancelEditing} title="Cancel" aria-label="Cancel editing">
+            <X className="w-3.5 h-3.5" />
+          </Button>
         </div>
       ) : (
-        <div className="flex items-center gap-2 group/balance cursor-pointer" onClick={() => startEditing(account)}>
-          <p className="text-2xl font-bold font-mono tracking-tight">
+        <div className="flex items-center gap-1.5">
+          <span className={cn('text-lg font-bold font-mono tracking-tight', isLiability && 'text-destructive')}>
             {formatAmount(account.balance, account.currency)}
-          </p>
-          <Pencil className="w-3.5 h-3.5 text-text-faint opacity-0 group-hover/balance:opacity-100 hover:text-[#606C38] dark:hover:text-[#7a8a4a] transition-all" />
+          </span>
+          <button
+            onClick={() => startEditing(account)}
+            className="opacity-0 group-hover:opacity-100 transition-opacity text-muted-foreground hover:text-foreground cursor-pointer"
+            title="Edit balance"
+            aria-label="Edit balance"
+          >
+            <Pencil className="w-3.5 h-3.5" />
+          </button>
+          {isLiability && account.next_payment != null && (
+            <span className="text-xs font-mono text-destructive/60 ml-2">
+              Next: {formatAmount(account.next_payment, account.currency)}
+            </span>
+          )}
         </div>
       )}
     </div>
   );
 }
 
-// --- Total card ---
-function TotalCard({ total, currency }: { total: number; currency: string }) {
-  return (
-    <div className="border rounded-xl p-5 shadow-sm dark:shadow-none h-[104px] flex flex-col justify-between bg-[#fdf3e3] dark:bg-[#BC6C25]/10 border-[#e8c08a] dark:border-[#BC6C25]/20 text-[#8a5218] dark:text-[#DDA15E]">
-      <span className="text-xs font-bold uppercase tracking-wider opacity-80">Total</span>
-      <p className="text-2xl font-bold font-mono tracking-tight">{formatAmount(total, currency)}</p>
-    </div>
-  );
-}
+// --- Dashboard ---
 
 export default function Dashboard() {
   const [accounts, setAccounts] = useState<Account[]>([]);
@@ -105,6 +123,9 @@ export default function Dashboard() {
   const [editingId, setEditingId] = useState<number | null>(null);
   const [editValue, setEditValue] = useState('');
   const [exchangeRate, setExchangeRate] = useState<{ buy_rate: number; sell_rate: number } | null>(null);
+  const [configSection, setConfigSection] = useState<string | null>(null);
+
+  const { settings, patchSection } = useSettings();
 
   const fetchData = async () => {
     setLoading(true);
@@ -141,222 +162,170 @@ export default function Dashboard() {
     } catch (e) { console.error(e); }
   };
 
-  const cardProps = { editingId, editValue, setEditValue, startEditing, saveBalance, cancelEditing };
+  const rowProps = { editingId, editValue, setEditValue, startEditing, saveBalance, cancelEditing };
 
-  // Group accounts by type
-  const bankAccounts = accounts.filter((a) => a.account_type === 'BANK');
-  const pensionAccounts = accounts.filter((a) => a.account_type === 'PENSION');
-  const savingsAccounts = accounts.filter((a) => a.account_type === 'SAVINGS');
-  const liabilityAccounts = accounts.filter((a) => a.account_type === 'LIABILITY');
-  const cryptoAccounts = accounts.filter((a) => a.account_type === 'CRYPTO');
+  // Sort sections by order, filter by visible
+  const sortedSections = useMemo(() => {
+    const sections = settings.dashboard.sections;
+    return Object.entries(sections)
+      .filter(([, s]) => s.visible)
+      .sort(([, a], [, b]) => a.order - b.order);
+  }, [settings]);
 
-  const bankOrder = ['BAC', 'BCR', 'DAVIVIENDA'];
-
-  // Bank totals for exchange rate combined total
-  const bankCRC = bankAccounts.filter((a) => a.currency === 'CRC').reduce((s, a) => s + a.balance, 0);
-  const bankUSD = bankAccounts.filter((a) => a.currency === 'USD').reduce((s, a) => s + a.balance, 0);
+  // Net worth calculation
+  const netWorthBreakdown = useMemo(() => {
+    if (accounts.length === 0) return null;
+    let assets = 0;
+    let liabilities = 0;
+    for (const a of accounts) {
+      const isLiability = a.account_type === 'LIABILITY';
+      let crcValue = 0;
+      if (a.currency === 'USD') {
+        crcValue = Math.abs(a.balance) * (exchangeRate?.sell_rate ?? 0);
+      } else if (a.currency === 'CRC') {
+        crcValue = Math.abs(a.balance);
+      }
+      if (isLiability) {
+        liabilities += crcValue;
+      } else {
+        assets += crcValue;
+      }
+    }
+    return { assets, liabilities, net: assets - liabilities };
+  }, [accounts, exchangeRate]);
 
   return (
     <div className="space-y-6">
       {/* Header */}
       <div className="flex items-center justify-between">
         <div>
-          <h1 className="text-2xl font-bold">Dashboard</h1>
-          <p className="text-sm text-text-muted mt-1">Financial overview</p>
+          <h1 className="text-2xl font-bold font-heading">Dashboard</h1>
+          <p className="text-sm text-muted-foreground mt-1">Financial overview</p>
         </div>
-        <button
-          onClick={fetchData}
-          className="p-2 rounded-lg text-text-muted hover:text-text-primary hover:bg-surface-hover transition-colors"
-        >
-          <RefreshCw className={`w-4 h-4 ${loading ? 'animate-spin' : ''}`} />
-        </button>
+        <Button variant="ghost" size="icon" onClick={fetchData} title="Refresh" aria-label="Refresh">
+          <RefreshCw className={cn('w-4 h-4', loading && 'animate-spin')} />
+        </Button>
       </div>
 
-      {/* Bank accounts — grouped by currency */}
-      {(['CRC', 'USD'] as const).map((currency) => {
-        const accts = bankAccounts
-          .filter((a) => a.currency === currency)
-          .sort((a, b) => bankOrder.indexOf(a.bank) - bankOrder.indexOf(b.bank));
+      {/* Net Worth */}
+      {netWorthBreakdown != null && (
+        <Card>
+          <CardContent className="px-4 py-3">
+            <div className="flex items-center justify-between text-sm font-mono text-muted-foreground">
+              <span>Net <span className="text-foreground font-bold">{netWorthBreakdown.net < 0 ? '-' : ''}{formatAmount(netWorthBreakdown.net, 'CRC')}</span></span>
+              <div className="flex gap-4">
+                <span>Assets <span className="text-foreground">{formatAmount(netWorthBreakdown.assets, 'CRC')}</span></span>
+                <span>Liabilities <span className="text-foreground">{formatAmount(netWorthBreakdown.liabilities, 'CRC')}</span></span>
+              </div>
+            </div>
+          </CardContent>
+        </Card>
+      )}
+
+      {/* Account sections */}
+      {sortedSections.map(([sectionId, sectionSettings]) => {
+        const def = SECTION_DEFS[sectionId];
+        if (!def) return null;
+        let accts = accounts.filter(def.filterFn);
         if (accts.length === 0) return null;
+
+        // Sort bank accounts by bank order
+        if (sectionId === 'crc_accounts' || sectionId === 'usd_accounts') {
+          accts = accts.sort((a, b) => BANK_ORDER.indexOf(a.bank) - BANK_ORDER.indexOf(b.bank));
+        }
+
         const total = accts.reduce((s, a) => s + a.balance, 0);
 
         return (
-          <div key={currency} className="space-y-2">
-            <h2 className="text-xs font-semibold text-text-muted uppercase tracking-wider">{currency} Accounts</h2>
-            <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 gap-4">
-              {accts.map((a) => <AccountCard key={a.id} account={a} {...cardProps} />)}
-              <TotalCard total={total} currency={currency} />
-            </div>
-          </div>
+          <DashboardSection
+            key={sectionId}
+            sectionId={sectionId}
+            settings={sectionSettings}
+            total={def.totalCurrency ? total : undefined}
+            totalCurrency={def.totalCurrency || undefined}
+            onToggleExpanded={(expanded) => patchSection(sectionId, { expanded })}
+            onOpenConfig={() => setConfigSection(sectionId)}
+          >
+            {accts.map((a) => (
+              <AccountRow key={a.id} account={a} {...rowProps} />
+            ))}
+          </DashboardSection>
         );
       })}
 
-      {/* Pension accounts */}
-      {pensionAccounts.length > 0 && (
-        <div className="space-y-2">
-          <h2 className="text-xs font-semibold text-text-muted uppercase tracking-wider">Pension</h2>
-          <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 gap-4">
-            {pensionAccounts.map((a) => <AccountCard key={a.id} account={a} {...cardProps} />)}
-            <TotalCard
-              total={pensionAccounts.reduce((s, a) => s + a.balance, 0)}
-              currency="CRC"
-            />
-          </div>
-        </div>
-      )}
-
-      {/* Savings accounts */}
-      {savingsAccounts.length > 0 && (
-        <div className="space-y-2">
-          <h2 className="text-xs font-semibold text-text-muted uppercase tracking-wider">Savings</h2>
-          <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 gap-4">
-            {savingsAccounts.map((a) => <AccountCard key={a.id} account={a} {...cardProps} />)}
-            <TotalCard
-              total={savingsAccounts.reduce((s, a) => s + a.balance, 0)}
-              currency="CRC"
-            />
-          </div>
-        </div>
-      )}
-
-      {/* Liabilities */}
-      {liabilityAccounts.length > 0 && (
-        <div className="space-y-2">
-          <h2 className="text-xs font-semibold text-text-muted uppercase tracking-wider">Liabilities</h2>
-          <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 gap-4">
-            {liabilityAccounts.map((account) => {
-              const bankShort = account.bank === 'DAVIVIENDA' ? 'DAV' : account.bank;
-              return (
-                <div
-                  key={account.id}
-                  className="animate-fade-in bg-red-50 dark:bg-red-500/5 border border-red-200 dark:border-red-500/20 rounded-xl p-5 shadow-sm dark:shadow-none hover:bg-red-100/50 dark:hover:bg-red-500/10 transition-colors"
-                >
-                  <div className="flex items-center justify-between mb-2">
-                    <span className="text-xs font-bold text-red-700 dark:text-red-400/80 uppercase tracking-wider">
-                      Balance
-                    </span>
-                    <span className="text-sm font-bold font-mono text-red-600 dark:text-red-400 bg-red-100 dark:bg-red-500/10 px-2.5 py-0.5 rounded">
-                      {bankShort}
-                    </span>
-                  </div>
-                  <p
-                    className="text-2xl font-bold font-mono tracking-tight text-red-700 dark:text-red-400 cursor-pointer group/balance"
-                    onClick={() => startEditing(account)}
-                  >
-                    {editingId === account.id ? (
-                      <span className="flex items-center gap-2">
-                        <input
-                          type="number"
-                          step="0.01"
-                          value={editValue}
-                          onChange={(e) => setEditValue(e.target.value)}
-                          onKeyDown={(e) => {
-                            if (e.key === 'Enter') saveBalance(account.id);
-                            if (e.key === 'Escape') cancelEditing();
-                          }}
-                          autoFocus
-                          className="w-full text-2xl font-bold font-mono tracking-tight bg-input-bg border border-red-500/40 rounded-lg px-2 py-1 focus:outline-none focus:border-red-500 transition-colors text-text-primary"
-                          onClick={(e) => e.stopPropagation()}
-                        />
-                        <button onClick={(e) => { e.stopPropagation(); saveBalance(account.id); }} className="p-1 text-red-500">
-                          <Check className="w-4 h-4" />
-                        </button>
-                        <button onClick={(e) => { e.stopPropagation(); cancelEditing(); }} className="p-1 text-text-muted">
-                          <X className="w-4 h-4" />
-                        </button>
-                      </span>
-                    ) : (
-                      formatAmount(account.balance, account.currency)
-                    )}
-                  </p>
-                  {account.next_payment != null && (
-                    <p className="text-sm font-mono text-red-600/70 dark:text-red-400/60 mt-2">
-                      Next payment: {formatAmount(account.next_payment, account.currency)}
-                    </p>
-                  )}
-                </div>
-              );
-            })}
-          </div>
-        </div>
-      )}
-
-      {/* Crypto */}
-      {cryptoAccounts.length > 0 && (
-        <div className="space-y-2">
-          <h2 className="text-xs font-semibold text-text-muted uppercase tracking-wider">Crypto</h2>
-          <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 gap-4">
-            {cryptoAccounts.map((a) => <AccountCard key={a.id} account={a} {...cardProps} />)}
-          </div>
-        </div>
-      )}
-
-      {/* Exchange rate + combined total */}
+      {/* Exchange rate */}
       {exchangeRate && (
-        <div className="flex flex-col sm:flex-row gap-4">
-          <div className="flex-1 bg-surface-card border border-border rounded-xl p-4">
-            <span className="text-xs font-medium text-text-muted uppercase tracking-wider">USD/CRC Exchange Rate</span>
+        <Card>
+          <CardContent className="p-4">
+            <span className="text-xs font-medium text-muted-foreground uppercase tracking-wider">USD/CRC Exchange Rate</span>
             <div className="flex items-baseline gap-3 mt-1">
               <span className="text-lg font-bold font-mono">Buy: ₡{exchangeRate.buy_rate.toFixed(2)}</span>
-              <span className="text-lg font-bold font-mono text-text-secondary">Sell: ₡{exchangeRate.sell_rate.toFixed(2)}</span>
-            </div>
-          </div>
-          {accounts.length > 0 && (
-            <div className="flex-1 bg-gradient-to-br from-violet-500/10 to-[#606C38]/5 border border-violet-500/20 rounded-xl p-4">
-              <span className="text-xs font-medium text-violet-600 dark:text-violet-400/80 uppercase tracking-wider">Combined Total (CRC)</span>
-              <p className="text-2xl font-bold font-mono tracking-tight text-violet-600 dark:text-violet-400 mt-1">
-                {formatAmount(bankCRC + bankUSD * exchangeRate.sell_rate, 'CRC')}
-              </p>
-            </div>
-          )}
+              <span className="text-lg font-bold font-mono text-muted-foreground">Sell: ₡{exchangeRate.sell_rate.toFixed(2)}</span>
             </div>
+          </CardContent>
+        </Card>
       )}
 
       {/* Recent transactions */}
-      <div className="bg-surface-card border border-border rounded-xl">
-        <div className="flex items-center justify-between px-5 py-4 border-b border-border-subtle">
+      <Card>
+        <CardHeader className="border-b flex-row items-center justify-between">
           <div className="flex items-center gap-2">
-            <CreditCard className="w-4 h-4 text-text-muted" />
-            <h2 className="font-semibold text-sm">Recent Charges</h2>
+            <CreditCard className="w-4 h-4 text-muted-foreground" />
+            <CardTitle className="text-sm">Recent Charges</CardTitle>
           </div>
           <Link
             to="/transactions"
-            className="flex items-center gap-1 text-xs font-medium text-[#606C38] dark:text-[#7a8a4a] hover:text-[#4a5a2a] dark:hover:text-[#8a9462] transition-colors"
+            className="flex items-center gap-1 text-xs font-medium text-primary hover:text-primary/80 transition-colors"
           >
             View all
             <ArrowRight className="w-3 h-3" />
           </Link>
-        </div>
+        </CardHeader>
+        <CardContent className="p-0">
           {recent.length === 0 && !loading ? (
-          <div className="px-5 py-12 text-center text-text-faint text-sm">No transactions yet. Add your first one!</div>
+            <div className="px-5 py-12 text-center text-muted-foreground text-sm">No transactions yet. Add your first one!</div>
           ) : (
-          <div className="divide-y divide-border-subtle">
+            <div className="divide-y divide-border">
               {recent.map((tx) => (
-              <div key={tx.id} className="flex items-center justify-between px-5 py-3.5 hover:bg-surface-hover transition-colors animate-fade-in">
+                <div key={tx.id} className="flex items-center justify-between px-5 py-3.5 hover:bg-muted/50 transition-colors">
                   <div className="flex items-center gap-3 min-w-0">
-                  <div className={`w-8 h-8 rounded-lg flex items-center justify-center flex-shrink-0 ${
-                    tx.transaction_type === 'DEVOLUCION' ? 'bg-[#606C38]/10 text-[#606C38] dark:text-[#7a8a4a]' : 'bg-red-500/10 text-red-500 dark:text-red-400'
-                  }`}>
+                    <div className={cn(
+                      'w-8 h-8 rounded-lg flex items-center justify-center shrink-0',
+                      tx.transaction_type === 'DEVOLUCION' ? 'bg-primary/10 text-primary' : 'bg-destructive/10 text-destructive'
+                    )}>
                       {tx.transaction_type === 'DEVOLUCION' ? <TrendingUp className="w-4 h-4" /> : <TrendingDown className="w-4 h-4" />}
                     </div>
                     <div className="min-w-0">
                       <p className="text-sm font-medium truncate">{tx.merchant}</p>
-                    <p className="text-xs text-text-muted">
+                      <p className="text-xs text-muted-foreground">
                         {formatDate(tx.date)}
-                      {tx.category && <span className="ml-2 text-text-faint">{tx.category.name}</span>}
+                        {tx.category && <span className="ml-2 text-muted-foreground/60">{tx.category.name}</span>}
                       </p>
                     </div>
                   </div>
-                <span className={`font-mono text-sm font-medium flex-shrink-0 ml-4 ${
-                  tx.transaction_type === 'DEVOLUCION' ? 'text-[#606C38] dark:text-[#7a8a4a]' : ''
-                }`}>
+                  <span className={cn(
+                    'font-mono text-sm font-medium shrink-0 ml-4',
+                    tx.transaction_type === 'DEVOLUCION' && 'text-primary'
+                  )}>
                     {tx.transaction_type === 'DEVOLUCION' ? '+' : '-'}{formatAmount(tx.amount, tx.currency)}
                   </span>
                 </div>
               ))}
             </div>
           )}
-      </div>
+        </CardContent>
+      </Card>
+
+      {/* Section config dialog */}
+      {configSection && settings.dashboard.sections[configSection] && (
+        <SectionConfigDialog
+          sectionId={configSection}
+          settings={settings.dashboard.sections[configSection]}
+          open={!!configSection}
+          onOpenChange={(open) => { if (!open) setConfigSection(null); }}
+          onSave={(id, partial) => patchSection(id, partial)}
+        />
+      )}
     </div>
   );
 }

frontend/src/pages/Login.tsx

@@ -4,6 +4,10 @@ import { Wallet, ArrowRight, AlertCircle } from 'lucide-react';
 
 import { login } from '../api';
 import { useAuth } from '../AuthContext';
+import { Button } from '@/components/ui/button';
+import { Input } from '@/components/ui/input';
+import { Label } from '@/components/ui/label';
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
 
 export default function Login() {
   const [username, setUsername] = useState('');
@@ -29,60 +33,61 @@ export default function Login() {
   };
 
   return (
-    <div className="min-h-screen bg-surface flex items-center justify-center px-4">
-      <div className="w-full max-w-sm animate-fade-in">
+    <div className="min-h-screen bg-background flex items-center justify-center px-4">
+      <div className="w-full max-w-sm">
         <div className="flex items-center justify-center gap-2.5 mb-8">
-          <div className="w-10 h-10 rounded-lg bg-gradient-to-br from-[#606C38] to-[#DDA15E] flex items-center justify-center">
-            <Wallet className="w-6 h-6 text-[#FEFAE0]" strokeWidth={2.5} />
+          <div className="w-10 h-10 rounded-lg bg-primary flex items-center justify-center">
+            <Wallet className="w-6 h-6 text-primary-foreground" strokeWidth={2.5} />
           </div>
-          <span className="text-2xl font-bold tracking-tight">
-            Wealthy<span className="text-[#606C38] dark:text-[#7a8a4a]">Smart</span>
+          <span className="text-2xl font-bold tracking-tight font-heading">
+            Wealthy<span className="text-primary">Smart</span>
           </span>
         </div>
 
+        <Card>
+          <CardHeader>
+            <CardTitle>Sign in</CardTitle>
+          </CardHeader>
+          <CardContent>
             <form onSubmit={handleSubmit} className="space-y-4">
-          <div>
-            <label className="block text-xs font-medium text-text-muted mb-1.5 uppercase tracking-wider">
-              Username
-            </label>
-            <input
+              <div className="space-y-2">
+                <Label htmlFor="username">Username</Label>
+                <Input
+                  id="username"
                   type="text"
                   value={username}
                   onChange={(e) => setUsername(e.target.value)}
-              className="w-full bg-input-bg border border-border rounded-lg px-4 py-3 text-text-primary placeholder-text-faint focus:outline-none focus:border-[#606C38]/50 focus:ring-1 focus:ring-[#606C38]/20 transition-colors"
                   placeholder="Enter username"
                   autoFocus
+                  className="h-10"
                 />
               </div>
-          <div>
-            <label className="block text-xs font-medium text-text-muted mb-1.5 uppercase tracking-wider">
-              Password
-            </label>
-            <input
+              <div className="space-y-2">
+                <Label htmlFor="password">Password</Label>
+                <Input
+                  id="password"
                   type="password"
                   value={password}
                   onChange={(e) => setPassword(e.target.value)}
-              className="w-full bg-input-bg border border-border rounded-lg px-4 py-3 text-text-primary placeholder-text-faint focus:outline-none focus:border-[#606C38]/50 focus:ring-1 focus:ring-[#606C38]/20 transition-colors"
                   placeholder="Enter password"
+                  className="h-10"
                 />
               </div>
 
               {error && (
-            <div className="flex items-center gap-2 text-red-500 dark:text-red-400 text-sm">
+                <div className="flex items-center gap-2 text-destructive text-sm">
                   <AlertCircle className="w-4 h-4" />
                   {error}
                 </div>
               )}
 
-          <button
-            type="submit"
-            disabled={loading}
-            className="w-full flex items-center justify-center gap-2 bg-[#606C38] hover:bg-[#7a8a4a] disabled:opacity-50 text-white dark:text-[#FEFAE0] font-semibold px-6 py-3 rounded-lg transition-colors"
-          >
+              <Button type="submit" disabled={loading} className="w-full h-10">
                 {loading ? 'Signing in...' : 'Sign in'}
                 {!loading && <ArrowRight className="w-4 h-4" />}
-          </button>
+              </Button>
             </form>
+          </CardContent>
+        </Card>
       </div>
     </div>
   );

frontend/src/pages/Transactions.tsx

@@ -1,20 +1,18 @@
 import { useEffect, useState, useCallback } from 'react';
-import {
-  Plus,
-  Search,
-  Pencil,
-  Trash2,
-  TrendingUp,
-  TrendingDown,
-  ChevronDown,
-  ClipboardPaste,
-} from 'lucide-react';
+import { Plus, ClipboardPaste } from 'lucide-react';
 
 import api, { type Transaction, type Category } from '../api';
-import TransactionModal from '../components/TransactionModal';
 import PasteImportModal from '../components/PasteImportModal';
-import ConfirmDialog from '../components/ConfirmDialog';
 import BillingCycleSelector from '../components/BillingCycleSelector';
+import TransactionList from '../components/TransactionList';
+import { Button } from '@/components/ui/button';
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from '@/components/ui/select';
 
 function formatAmount(amount: number, currency: string) {
   const abs = Math.abs(amount);
@@ -30,11 +28,7 @@ export default function Transactions() {
   const [search, setSearch] = useState('');
   const [categoryFilter, setCategoryFilter] = useState('');
   const [loading, setLoading] = useState(true);
-  const [modalOpen, setModalOpen] = useState(false);
   const [importOpen, setImportOpen] = useState(false);
-  const [editing, setEditing] = useState<Transaction | null>(null);
-  const [deleteId, setDeleteId] = useState<number | null>(null);
-  const [deleting, setDeleting] = useState(false);
   const [cycle, setCycle] = useState<{ year: number; month: number } | null>(null);
 
   const fetchTransactions = useCallback(async () => {
@@ -63,18 +57,6 @@ export default function Transactions() {
     return () => clearTimeout(timer);
   }, [fetchTransactions]);
 
-  const handleDelete = async () => {
-    if (deleteId === null) return;
-    setDeleting(true);
-    try {
-      await api.delete(`/transactions/${deleteId}`);
-      setDeleteId(null);
-      fetchTransactions();
-    } finally {
-      setDeleting(false);
-    }
-  };
-
   const totalCRC = transactions
     .filter((tx) => tx.currency === 'CRC')
     .reduce((sum, tx) => sum + (tx.transaction_type === 'DEVOLUCION' ? -tx.amount : tx.amount), 0);
@@ -86,187 +68,57 @@ export default function Transactions() {
     <div className="space-y-5">
       <div className="flex flex-col sm:flex-row sm:items-center justify-between gap-4">
         <div>
-          <h1 className="text-2xl font-bold">Credit Card Transactions</h1>
-          <p className="text-sm text-text-muted mt-1">
+          <h1 className="text-2xl font-bold font-heading">Credit Card Transactions</h1>
+          <p className="text-sm text-muted-foreground mt-1">
             {transactions.length} transactions
             {totalCRC !== 0 && (
-              <> &middot; <span className="font-mono text-text-primary">{formatAmount(totalCRC, 'CRC')}</span></>
+              <> &middot; <span className="font-mono text-foreground">{formatAmount(totalCRC, 'CRC')}</span></>
             )}
             {totalUSD !== 0 && (
-              <> &middot; <span className="font-mono text-text-primary">{formatAmount(totalUSD, 'USD')}</span></>
+              <> &middot; <span className="font-mono text-foreground">{formatAmount(totalUSD, 'USD')}</span></>
             )}
           </p>
         </div>
         <div className="flex gap-2">
-          <button
-            onClick={() => setImportOpen(true)}
-            className="flex items-center gap-2 border border-border hover:bg-surface-hover text-text-secondary font-semibold px-4 py-2.5 rounded-lg text-sm transition-colors"
-          >
+          <Button variant="outline" onClick={() => setImportOpen(true)}>
             <ClipboardPaste className="w-4 h-4" />
             Import
-          </button>
-          <button
-            onClick={() => {
-              setEditing(null);
-              setModalOpen(true);
-            }}
-            className="flex items-center gap-2 bg-[#606C38] hover:bg-[#7a8a4a] text-white dark:text-[#FEFAE0] font-semibold px-4 py-2.5 rounded-lg text-sm transition-colors"
-          >
-            <Plus className="w-4 h-4" />
-            Add Transaction
-          </button>
+          </Button>
         </div>
       </div>
 
       {/* Billing cycle */}
       <BillingCycleSelector value={cycle} onChange={setCycle} />
 
-      {/* Filters */}
-      <div className="flex flex-col sm:flex-row gap-3">
-        <div className="relative flex-1">
-          <Search className="absolute left-3 top-1/2 -translate-y-1/2 w-4 h-4 text-text-muted" />
-          <input
-            value={search}
-            onChange={(e) => setSearch(e.target.value)}
-            className="w-full bg-input-bg border border-border rounded-lg pl-10 pr-4 py-2.5 text-sm text-text-primary placeholder-text-faint focus:outline-none focus:border-[#606C38]/50 transition-colors"
-            placeholder="Search merchants..."
-          />
-        </div>
-        <div className="relative">
-          <select
-            value={categoryFilter}
-            onChange={(e) => setCategoryFilter(e.target.value)}
-            className="appearance-none bg-input-bg border border-border rounded-lg pl-4 pr-10 py-2.5 text-sm text-text-primary focus:outline-none focus:border-[#606C38]/50 transition-colors"
+      {/* Category filter */}
+      <div className="flex items-center gap-3">
+        <Select
+          value={categoryFilter || 'all'}
+          onValueChange={(v) => setCategoryFilter(v === 'all' ? '' : v)}
         >
-            <option value="">All Categories</option>
+          <SelectTrigger className="w-[180px]">
+            <SelectValue />
+          </SelectTrigger>
+          <SelectContent>
+            <SelectItem value="all">All Categories</SelectItem>
             {categories.map((c) => (
-              <option key={c.id} value={c.id}>
+              <SelectItem key={c.id} value={String(c.id)}>
                 {c.name}
-              </option>
+              </SelectItem>
             ))}
-          </select>
-          <ChevronDown className="absolute right-3 top-1/2 -translate-y-1/2 w-4 h-4 text-text-muted pointer-events-none" />
-        </div>
+          </SelectContent>
+        </Select>
       </div>
 
-      {/* Table */}
-      <div className="bg-surface-card border border-border rounded-xl overflow-hidden">
-        <div className="overflow-x-auto">
-          <table className="w-full text-sm">
-            <thead>
-              <tr className="border-b border-border-subtle">
-                <th className="text-left px-5 py-3 text-xs font-medium text-text-muted uppercase tracking-wider">
-                  Date
-                </th>
-                <th className="text-left px-5 py-3 text-xs font-medium text-text-muted uppercase tracking-wider">
-                  Merchant
-                </th>
-                <th className="text-left px-5 py-3 text-xs font-medium text-text-muted uppercase tracking-wider hidden md:table-cell">
-                  Category
-                </th>
-                <th className="text-right px-5 py-3 text-xs font-medium text-text-muted uppercase tracking-wider">
-                  Amount
-                </th>
-                <th className="text-right px-5 py-3 text-xs font-medium text-text-muted uppercase tracking-wider w-20">
-                  Actions
-                </th>
-              </tr>
-            </thead>
-            <tbody className="divide-y divide-border-subtle">
-
-                {transactions.map((tx) => (
-                  <tr
-                    key={tx.id}
-                    className="hover:bg-surface-hover transition-colors group"
-                  >
-                    <td className="px-5 py-3 whitespace-nowrap">
-                      <span className="font-mono text-text-secondary text-xs">
-                        {new Date(tx.date).toLocaleDateString('en-US', {
-                          month: 'short',
-                          day: 'numeric',
-                          year: 'numeric',
-                        })}
-                      </span>
-                    </td>
-                    <td className="px-5 py-3">
-                      <div className="flex items-center gap-2">
-                        <div
-                          className={`w-6 h-6 rounded flex items-center justify-center flex-shrink-0 ${
-                            tx.transaction_type === 'DEVOLUCION'
-                              ? 'bg-[#606C38]/10 text-[#606C38] dark:text-[#7a8a4a]'
-                              : 'bg-red-500/10 text-red-500 dark:text-red-400'
-                          }`}
-                        >
-                          {tx.transaction_type === 'DEVOLUCION' ? (
-                            <TrendingUp className="w-3 h-3" />
-                          ) : (
-                            <TrendingDown className="w-3 h-3" />
-                          )}
-                        </div>
-                        <span className="truncate max-w-[200px] sm:max-w-none">{tx.merchant}</span>
-                      </div>
-                    </td>
-                    <td className="px-5 py-3 hidden md:table-cell">
-                      {tx.category ? (
-                        <span className="text-xs bg-surface-hover text-text-secondary px-2 py-1 rounded">
-                          {tx.category.name}
-                        </span>
-                      ) : (
-                        <span className="text-xs text-text-faint">—</span>
-                      )}
-                    </td>
-                    <td className="px-5 py-3 text-right whitespace-nowrap">
-                      <span
-                        className={`font-mono font-medium ${
-                          tx.transaction_type === 'DEVOLUCION'
-                            ? 'text-[#606C38] dark:text-[#7a8a4a]'
-                            : ''
-                        }`}
-                      >
-                        {tx.transaction_type === 'DEVOLUCION' ? '+' : '-'}
-                        {formatAmount(tx.amount, tx.currency)}
-                      </span>
-                    </td>
-                    <td className="px-5 py-3 text-right">
-                      <div className="flex items-center justify-end gap-1 opacity-0 group-hover:opacity-100 transition-opacity">
-                        <button
-                          onClick={() => {
-                            setEditing(tx);
-                            setModalOpen(true);
-                          }}
-                          className="p-1.5 rounded hover:bg-surface-hover text-text-muted hover:text-text-primary transition-colors"
-                        >
-                          <Pencil className="w-3.5 h-3.5" />
-                        </button>
-                        <button
-                          onClick={() => setDeleteId(tx.id)}
-                          className="p-1.5 rounded hover:bg-red-500/10 text-text-muted hover:text-red-500 dark:hover:text-red-400 transition-colors"
-                        >
-                          <Trash2 className="w-3.5 h-3.5" />
-                        </button>
-                      </div>
-                    </td>
-                  </tr>
-                ))}
-            </tbody>
-          </table>
-        </div>
-
-        {transactions.length === 0 && !loading && (
-          <div className="px-5 py-16 text-center text-text-faint text-sm">
-            No transactions found
-          </div>
-        )}
-      </div>
-
-      {modalOpen && (
-        <TransactionModal
-          transaction={editing}
+      <TransactionList
+        transactions={transactions}
+        loading={loading}
         source="CREDIT_CARD"
-          onClose={() => setModalOpen(false)}
-          onSaved={fetchTransactions}
+        search={search}
+        onSearchChange={setSearch}
+        onRefresh={fetchTransactions}
+        showCategory
       />
-      )}
 
       {importOpen && (
         <PasteImportModal
@@ -274,16 +126,6 @@ export default function Transactions() {
           onImported={fetchTransactions}
         />
       )}
-
-      {deleteId !== null && (
-        <ConfirmDialog
-          title="Delete Transaction"
-          message="This transaction will be permanently deleted. This action cannot be undone."
-          onConfirm={handleDelete}
-          onCancel={() => setDeleteId(null)}
-          loading={deleting}
-        />
-      )}
     </div>
   );
 }

frontend/src/pages/Transfers.tsx

@@ -1,17 +1,9 @@
 import { useEffect, useState, useCallback } from 'react';
-import { Plus, Search, Pencil, Trash2, ArrowLeftRight } from 'lucide-react';
+import { ArrowLeftRight } from 'lucide-react';
 
 import api, { type Transaction } from '../api';
-import TransactionModal from '../components/TransactionModal';
-import ConfirmDialog from '../components/ConfirmDialog';
-
-function formatAmount(amount: number, currency: string) {
-  const abs = Math.abs(amount);
-  if (currency === 'USD') {
-    return `$${abs.toLocaleString('en-US', { minimumFractionDigits: 2, maximumFractionDigits: 2 })}`;
-  }
-  return `₡${abs.toLocaleString('es-CR', { minimumFractionDigits: 2, maximumFractionDigits: 2 })}`;
-}
+import TransactionList from '../components/TransactionList';
+import { Tabs, TabsList, TabsTrigger, TabsContent } from '@/components/ui/tabs';
 
 type SourceTab = 'CASH' | 'TRANSFER';
 
@@ -20,10 +12,6 @@ export default function Transfers() {
   const [search, setSearch] = useState('');
   const [sourceTab, setSourceTab] = useState<SourceTab>('CASH');
   const [loading, setLoading] = useState(true);
-  const [modalOpen, setModalOpen] = useState(false);
-  const [editing, setEditing] = useState<Transaction | null>(null);
-  const [deleteId, setDeleteId] = useState<number | null>(null);
-  const [deleting, setDeleting] = useState(false);
 
   const fetchTransactions = useCallback(async () => {
     setLoading(true);
@@ -42,142 +30,36 @@ export default function Transfers() {
     return () => clearTimeout(timer);
   }, [fetchTransactions]);
 
-  const handleDelete = async () => {
-    if (deleteId === null) return;
-    setDeleting(true);
-    try {
-      await api.delete(`/transactions/${deleteId}`);
-      setDeleteId(null);
-      fetchTransactions();
-    } finally {
-      setDeleting(false);
-    }
-  };
-
   return (
     <div className="space-y-5">
-      <div className="flex flex-col sm:flex-row sm:items-center justify-between gap-4">
       <div>
-          <h1 className="text-2xl font-bold">Cash & Transfers</h1>
-          <p className="text-sm text-text-muted mt-1">
+        <h1 className="text-2xl font-bold font-heading">Cash & Transfers</h1>
+        <p className="text-sm text-muted-foreground mt-1">
           Track non-credit-card expenses
         </p>
       </div>
-        <button
-          onClick={() => {
-            setEditing(null);
-            setModalOpen(true);
-          }}
-          className="flex items-center gap-2 bg-[#606C38] hover:bg-[#7a8a4a] text-white dark:text-[#FEFAE0] font-semibold px-4 py-2.5 rounded-lg text-sm transition-colors"
-        >
-          <Plus className="w-4 h-4" />
-          Add {sourceTab === 'CASH' ? 'Cash Expense' : 'Transfer'}
-        </button>
-      </div>
 
-      {/* Source tabs */}
-      <div className="flex gap-1 bg-surface-card border border-border rounded-lg p-1 w-fit">
-        {(['CASH', 'TRANSFER'] as const).map((tab) => (
-          <button
-            key={tab}
-            onClick={() => setSourceTab(tab)}
-            className={`px-4 py-2 rounded-md text-sm font-medium transition-colors ${
-              sourceTab === tab
-                ? 'bg-[#606C38]/10 text-[#606C38] dark:text-[#7a8a4a]'
-                : 'text-text-muted hover:text-text-primary'
-            }`}
-          >
-            {tab === 'CASH' ? 'Cash' : 'Transfers'}
-          </button>
-        ))}
-      </div>
+      <Tabs value={sourceTab} onValueChange={(v) => setSourceTab(v as SourceTab)}>
+        <TabsList>
+          <TabsTrigger value="CASH">Cash</TabsTrigger>
+          <TabsTrigger value="TRANSFER">Transfers</TabsTrigger>
+        </TabsList>
 
-      {/* Search */}
-      <div className="relative max-w-sm">
-        <Search className="absolute left-3 top-1/2 -translate-y-1/2 w-4 h-4 text-text-muted" />
-        <input
-          value={search}
-          onChange={(e) => setSearch(e.target.value)}
-          className="w-full bg-input-bg border border-border rounded-lg pl-10 pr-4 py-2.5 text-sm text-text-primary placeholder-text-faint focus:outline-none focus:border-[#606C38]/50 transition-colors"
-          placeholder="Search..."
-        />
-      </div>
-
-      {/* List */}
-      <div className="bg-surface-card border border-border rounded-xl divide-y divide-border-subtle">
-        {transactions.length === 0 && !loading ? (
-          <div className="px-5 py-16 text-center text-text-faint text-sm">
-            <ArrowLeftRight className="w-8 h-8 mx-auto mb-3 text-text-faint" />
-            No {sourceTab.toLowerCase()} transactions yet
-          </div>
-        ) : (
-          <>
-            {transactions.map((tx) => (
-              <div
-                key={tx.id}
-                className="flex items-center justify-between px-5 py-4 hover:bg-surface-hover transition-colors group"
-              >
-                <div className="min-w-0">
-                  <p className="text-sm font-medium truncate">{tx.merchant}</p>
-                  <p className="text-xs text-text-muted mt-0.5">
-                    {new Date(tx.date).toLocaleDateString('en-US', {
-                      month: 'short',
-                      day: 'numeric',
-                      year: 'numeric',
-                    })}
-                    {tx.category && (
-                      <span className="ml-2 bg-surface-hover text-text-secondary px-2 py-0.5 rounded">
-                        {tx.category.name}
-                      </span>
-                    )}
-                  </p>
-                </div>
-                <div className="flex items-center gap-3 flex-shrink-0 ml-4">
-                  <span className="font-mono text-sm font-medium">
-                    {formatAmount(tx.amount, tx.currency)}
-                  </span>
-                  <div className="flex items-center gap-1 opacity-0 group-hover:opacity-100 transition-opacity">
-                    <button
-                      onClick={() => {
-                        setEditing(tx);
-                        setModalOpen(true);
-                      }}
-                      className="p-1.5 rounded hover:bg-surface-hover text-text-muted hover:text-text-primary transition-colors"
-                    >
-                      <Pencil className="w-3.5 h-3.5" />
-                    </button>
-                    <button
-                      onClick={() => setDeleteId(tx.id)}
-                      className="p-1.5 rounded hover:bg-red-500/10 text-text-muted hover:text-red-500 dark:hover:text-red-400 transition-colors"
-                    >
-                      <Trash2 className="w-3.5 h-3.5" />
-                    </button>
-                  </div>
-                </div>
-              </div>
-            ))}
-          </>
-        )}
-      </div>
-
-      {modalOpen && (
-        <TransactionModal
-          transaction={editing}
+        <TabsContent value={sourceTab} className="mt-5 space-y-5">
+          <TransactionList
+            transactions={transactions}
+            loading={loading}
             source={sourceTab}
-          onClose={() => setModalOpen(false)}
-          onSaved={fetchTransactions}
+            search={search}
+            onSearchChange={setSearch}
+            onRefresh={fetchTransactions}
+            showCategory={false}
+            addLabel={sourceTab === 'CASH' ? 'Add Cash Expense' : 'Add Transfer'}
+            emptyIcon={<ArrowLeftRight className="w-8 h-8 mx-auto mb-3 text-muted-foreground/50" />}
+            emptyMessage={`No ${sourceTab.toLowerCase()} transactions yet`}
           />
-      )}
-
-      {deleteId !== null && (
-        <ConfirmDialog
-          title="Delete Transaction"
-          message="This transaction will be permanently deleted. This action cannot be undone."
-          onConfirm={handleDelete}
-          onCancel={() => setDeleteId(null)}
-          loading={deleting}
-        />
-      )}
+        </TabsContent>
+      </Tabs>
     </div>
   );
 }