diff --git a/frontend/src/components/ui/index.ts b/frontend/src/components/ui/index.ts
deleted file mode 100644
index ffb4c1b..0000000
--- a/frontend/src/components/ui/index.ts
+++ /dev/null
@@ -1,9 +0,0 @@
-export { Button, buttonVariants } from './button'
-export { Card, CardHeader, CardTitle, CardContent, CardFooter } from './card'
-export { Badge, badgeVariants } from './badge'
-export { Input } from './input'
-export { Select } from './select'
-export { Label } from './label'
-export { Switch } from './switch'
-export { Textarea } from './textarea'
-export { ToastContainer, toast, dismissToast } from './toast'
\ No newline at end of file
diff --git a/frontend/src/components/ui/input.tsx b/frontend/src/components/ui/input.tsx
deleted file mode 100644
index b6f3d33..0000000
--- a/frontend/src/components/ui/input.tsx
+++ /dev/null
@@ -1,33 +0,0 @@
-import * as React from 'react'
-import { cn } from '@/lib/utils'
-
-export interface InputProps extends React.InputHTMLAttributes<HTMLInputElement> {
-  error?: boolean
-}
-
-const Input = React.forwardRef<HTMLInputElement, InputProps>(
-  ({ className, type, error, ...props }, ref) => {
-    return (
-      <input
-        type={type}
-        className={cn(
-          'flex h-9 w-full rounded-md px-3 py-2 text-sm',
-          'bg-[var(--bg-input)] border',
-          'text-[var(--text-primary)] placeholder:text-[var(--text-muted)]',
-          'transition-all duration-200',
-          'focus:outline-none focus:ring-2 focus:ring-[var(--accent)]/50 focus:border-[var(--accent)]',
-          'disabled:cursor-not-allowed disabled:opacity-50',
-          error
-            ? 'border-red-500/50 focus:ring-red-500/50'
-            : 'border-[var(--border)]',
-          className
-        )}
-        ref={ref}
-        {...props}
-      />
-    )
-  }
-)
-Input.displayName = 'Input'
-
-export { Input }
\ No newline at end of file
diff --git a/frontend/src/components/ui/label.tsx b/frontend/src/components/ui/label.tsx
deleted file mode 100644
index 6dfd317..0000000
--- a/frontend/src/components/ui/label.tsx
+++ /dev/null
@@ -1,28 +0,0 @@
-import * as React from 'react'
-import { cn } from '@/lib/utils'
-
-export interface LabelProps extends React.LabelHTMLAttributes<HTMLLabelElement> {
-  required?: boolean
-}
-
-const Label = React.forwardRef<HTMLLabelElement, LabelProps>(
-  ({ className, required, children, ...props }, ref) => {
-    return (
-      <label
-        ref={ref}
-        className={cn(
-          'text-xs font-medium text-[var(--text-secondary)]',
-          'transition-colors duration-200',
-          required && "after:content-['*'] after:text-red-400 after:ml-0.5",
-          className
-        )}
-        {...props}
-      >
-        {children}
-      </label>
-    )
-  }
-)
-Label.displayName = 'Label'
-
-export { Label }
\ No newline at end of file
diff --git a/frontend/src/components/ui/select.tsx b/frontend/src/components/ui/select.tsx
deleted file mode 100644
index fffd547..0000000
--- a/frontend/src/components/ui/select.tsx
+++ /dev/null
@@ -1,28 +0,0 @@
-import * as React from 'react'
-import { cn } from '@/lib/utils'
-
-export interface SelectProps extends React.SelectHTMLAttributes<HTMLSelectElement> {}
-
-const Select = React.forwardRef<HTMLSelectElement, SelectProps>(
-  ({ className, ...props }, ref) => {
-    return (
-      <select
-        className={cn(
-          'flex h-9 w-full rounded-md px-3 py-2 text-sm',
-          'bg-[var(--bg-input)] border border-[var(--border)]',
-          'text-[var(--text-primary)]',
-          'transition-all duration-200',
-          'focus:outline-none focus:ring-2 focus:ring-[var(--accent)]/50 focus:border-[var(--accent)]',
-          'disabled:cursor-not-allowed disabled:opacity-50',
-          'appearance-none bg-[length:16px_16px] bg-[right_12px_center] bg-no-repeat',
-          className
-        )}
-        ref={ref}
-        {...props}
-      />
-    )
-  }
-)
-Select.displayName = 'Select'
-
-export { Select }
\ No newline at end of file
diff --git a/frontend/src/components/ui/switch.tsx b/frontend/src/components/ui/switch.tsx
deleted file mode 100644
index 565df48..0000000
--- a/frontend/src/components/ui/switch.tsx
+++ /dev/null
@@ -1,41 +0,0 @@
-import * as React from 'react'
-import { cn } from '@/lib/utils'
-
-interface SwitchProps extends React.ButtonHTMLAttributes<HTMLButtonElement> {
-  checked: boolean
-  onCheckedChange: (checked: boolean) => void
-}
-
-const Switch = React.forwardRef<HTMLButtonElement, SwitchProps>(
-  ({ className, checked, onCheckedChange, disabled, ...props }, ref) => {
-    return (
-      <button
-        type="button"
-        role="switch"
-        aria-checked={checked}
-        ref={ref}
-        disabled={disabled}
-        onClick={() => onCheckedChange(!checked)}
-        className={cn(
-          'relative inline-flex h-5 w-9 shrink-0 cursor-pointer rounded-full border-2 border-transparent',
-          'transition-colors duration-200 ease-out',
-          'focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-[var(--accent)] focus-visible:ring-offset-2 focus-visible:ring-offset-[var(--bg-base)]',
-          'disabled:cursor-not-allowed disabled:opacity-50',
-          checked ? 'bg-[var(--accent)]' : 'bg-[var(--border)]',
-          className
-        )}
-        {...props}
-      >
-        <span
-          className={cn(
-            'pointer-events-none inline-block h-4 w-4 rounded-full bg-white shadow-lg transform transition-transform duration-200 ease-out',
-            checked ? 'translate-x-4' : 'translate-x-0'
-          )}
-        />
-      </button>
-    )
-  }
-)
-Switch.displayName = 'Switch'
-
-export { Switch }
\ No newline at end of file
diff --git a/frontend/src/components/ui/textarea.tsx b/frontend/src/components/ui/textarea.tsx
deleted file mode 100644
index 83789f0..0000000
--- a/frontend/src/components/ui/textarea.tsx
+++ /dev/null
@@ -1,28 +0,0 @@
-import * as React from 'react'
-import { cn } from '@/lib/utils'
-
-export interface TextareaProps extends React.TextareaHTMLAttributes<HTMLTextAreaElement> {}
-
-const Textarea = React.forwardRef<HTMLTextAreaElement, TextareaProps>(
-  ({ className, ...props }, ref) => {
-    return (
-      <textarea
-        className={cn(
-          'flex min-h-[80px] w-full rounded-md px-3 py-2 text-sm',
-          'bg-[var(--bg-input)] border border-[var(--border)]',
-          'text-[var(--text-primary)] placeholder:text-[var(--text-muted)]',
-          'transition-all duration-200',
-          'focus:outline-none focus:ring-2 focus:ring-[var(--accent)]/50 focus:border-[var(--accent)]',
-          'disabled:cursor-not-allowed disabled:opacity-50',
-          'resize-none',
-          className
-        )}
-        ref={ref}
-        {...props}
-      />
-    )
-  }
-)
-Textarea.displayName = 'Textarea'
-
-export { Textarea }
\ No newline at end of file
diff --git a/frontend/src/components/ui/toast.tsx b/frontend/src/components/ui/toast.tsx
deleted file mode 100644
index d922a18..0000000
--- a/frontend/src/components/ui/toast.tsx
+++ /dev/null
@@ -1,88 +0,0 @@
-import { useEffect, useState } from 'react'
-import { cn } from '@/lib/utils'
-import { CheckCircle, XCircle, AlertCircle, X } from 'lucide-react'
-
-type ToastType = 'success' | 'error' | 'warning' | 'info'
-
-interface Toast {
-  id: string
-  type: ToastType
-  title: string
-  message?: string
-}
-
-const icons: Record<ToastType, React.ReactNode> = {
-  success: <CheckCircle className="h-5 w-5 text-emerald-400" />,
-  error: <XCircle className="h-5 w-5 text-red-400" />,
-  warning: <AlertCircle className="h-5 w-5 text-amber-400" />,
-  info: <AlertCircle className="h-5 w-5 text-blue-400" />,
-}
-
-const bgColors: Record<ToastType, string> = {
-  success: 'border-emerald-500/30 bg-emerald-500/10',
-  error: 'border-red-500/30 bg-red-500/10',
-  warning: 'border-amber-500/30 bg-amber-500/10',
-  info: 'border-blue-500/30 bg-blue-500/10',
-}
-
-let toastId = 0
-const listeners: Set<(toasts: Toast[]) => void> = new Set()
-let toasts: Toast[] = []
-
-function notify(listeners: Set<any>, toasts: Toast[]) {
-  listeners.forEach(l => l([...toasts]))
-}
-
-export function toast(type: ToastType, title: string, message?: string) {
-  const id = String(++toastId)
-  toasts = [...toasts, { id, type, title, message }]
-  notify(listeners, toasts)
-  setTimeout(() => {
-    toasts = toasts.filter(t => t.id !== id)
-    notify(listeners, toasts)
-  }, 4000)
-}
-
-export function dismissToast(id: string) {
-  toasts = toasts.filter(t => t.id !== id)
-  notify(listeners, toasts)
-}
-
-export function ToastContainer() {
-  const [items, setItems] = useState<Toast[]>([])
-
-  useEffect(() => {
-    listeners.add(setItems)
-    return () => { listeners.delete(setItems) }
-  }, [])
-
-  return (
-    <div className="fixed bottom-4 right-4 z-50 flex flex-col gap-2">
-      {items.map((t) => (
-        <div
-          key={t.id}
-          className={cn(
-            'flex items-start gap-3 p-4 rounded-lg border backdrop-blur-sm',
-            'bg-[var(--bg-card)] shadow-lg',
-            'animate-in slide-in-from-right fade-in duration-300',
-            bgColors[t.type]
-          )}
-        >
-          {icons[t.type]}
-          <div className="flex-1">
-            <p className="text-sm font-medium text-[var(--text-primary)]">{t.title}</p>
-            {t.message && (
-              <p className="text-xs text-[var(--text-muted)] mt-1">{t.message}</p>
-            )}
-          </div>
-          <button
-            onClick={() => dismissToast(t.id)}
-            className="text-[var(--text-muted)] hover:text-[var(--text-primary)] transition-colors"
-          >
-            <X className="h-4 w-4" />
-          </button>
-        </div>
-      ))}
-    </div>
-  )
-}
\ No newline at end of file