feat: add MTR display board and train info components

- Implemented MtrDisplayBoard component to show train schedules with weather information.
- Created MtrTrainInfo component to manage state and render MtrDisplayBoard.
- Added ScreenshotTaker component for downloading screenshots of the display board.
- Introduced theme toggle functionality with ThemeToggle component.
- Developed various UI components including Button, Card, ColorPicker, DropdownMenu, Input, Label, Popover, Select, Separator, Switch, Tabs, and Textarea.
- Added utility functions for class name merging and tool definitions.

components.json

@@ -0,0 +1,21 @@
+{
+  "$schema": "https://ui.shadcn.com/schema.json",
+  "style": "new-york",
+  "rsc": true,
+  "tsx": true,
+  "tailwind": {
+    "config": "",
+    "css": "src/app/globals.css",
+    "baseColor": "neutral",
+    "cssVariables": true,
+    "prefix": ""
+  },
+  "aliases": {
+    "components": "@/components",
+    "utils": "@/lib/utils",
+    "ui": "@/components/ui",
+    "lib": "@/lib",
+    "hooks": "@/hooks"
+  },
+  "iconLibrary": "lucide"
+}

package.json

@@ -9,19 +9,35 @@
     "lint": "next lint"
   },
   "dependencies": {
+    "@radix-ui/react-dropdown-menu": "^2.1.15",
+    "@radix-ui/react-label": "^2.1.7",
+    "@radix-ui/react-popover": "^1.1.14",
+    "@radix-ui/react-select": "^2.2.5",
+    "@radix-ui/react-separator": "^1.1.7",
+    "@radix-ui/react-slot": "^1.2.3",
+    "@radix-ui/react-switch": "^1.2.5",
+    "@radix-ui/react-tabs": "^1.1.12",
+    "class-variance-authority": "^0.7.1",
+    "clsx": "^2.1.1",
+    "html-to-image": "^1.11.13",
+    "lucide-react": "^0.539.0",
+    "next": "15.4.6",
+    "next-themes": "^0.4.6",
     "react": "19.1.0",
+    "react-colorful": "^5.6.1",
     "react-dom": "19.1.0",
-    "next": "15.4.6"
+    "tailwind-merge": "^3.3.1"
   },
   "devDependencies": {
-    "typescript": "^5",
+    "@eslint/eslintrc": "^3",
+    "@tailwindcss/postcss": "^4",
     "@types/node": "^20",
     "@types/react": "^19",
     "@types/react-dom": "^19",
-    "@tailwindcss/postcss": "^4",
-    "tailwindcss": "^4",
     "eslint": "^9",
     "eslint-config-next": "15.4.6",
-    "@eslint/eslintrc": "^3"
+    "tailwindcss": "^4",
+    "tw-animate-css": "^1.3.6",
+    "typescript": "^5"
   }
 }

src/app/globals.css

@@ -1,26 +1,122 @@
 @import "tailwindcss";
+@import "tw-animate-css";
 
-:root {
-  --background: #ffffff;
-  --foreground: #171717;
-}
+@custom-variant dark (&:is(.dark *));
 
 @theme inline {
   --color-background: var(--background);
   --color-foreground: var(--foreground);
   --font-sans: var(--font-geist-sans);
   --font-mono: var(--font-geist-mono);
+  --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);
+  --radius-sm: calc(var(--radius) - 4px);
+  --radius-md: calc(var(--radius) - 2px);
+  --radius-lg: var(--radius);
+  --radius-xl: calc(var(--radius) + 4px);
 }
 
-@media (prefers-color-scheme: dark) {
-  :root {
-    --background: #0a0a0a;
-    --foreground: #ededed;
+:root {
+  --radius: 0.625rem;
+  --background: oklch(1 0 0);
+  --foreground: oklch(0.145 0 0);
+  --card: oklch(1 0 0);
+  --card-foreground: oklch(0.145 0 0);
+  --popover: oklch(1 0 0);
+  --popover-foreground: oklch(0.145 0 0);
+  --primary: oklch(0.205 0 0);
+  --primary-foreground: oklch(0.985 0 0);
+  --secondary: oklch(0.97 0 0);
+  --secondary-foreground: oklch(0.205 0 0);
+  --muted: oklch(0.97 0 0);
+  --muted-foreground: oklch(0.556 0 0);
+  --accent: oklch(0.97 0 0);
+  --accent-foreground: oklch(0.205 0 0);
+  --destructive: oklch(0.577 0.245 27.325);
+  --border: oklch(0.922 0 0);
+  --input: oklch(0.922 0 0);
+  --ring: oklch(0.708 0 0);
+  --chart-1: oklch(0.646 0.222 41.116);
+  --chart-2: oklch(0.6 0.118 184.704);
+  --chart-3: oklch(0.398 0.07 227.392);
+  --chart-4: oklch(0.828 0.189 84.429);
+  --chart-5: oklch(0.769 0.188 70.08);
+  --sidebar: oklch(0.985 0 0);
+  --sidebar-foreground: oklch(0.145 0 0);
+  --sidebar-primary: oklch(0.205 0 0);
+  --sidebar-primary-foreground: oklch(0.985 0 0);
+  --sidebar-accent: oklch(0.97 0 0);
+  --sidebar-accent-foreground: oklch(0.205 0 0);
+  --sidebar-border: oklch(0.922 0 0);
+  --sidebar-ring: oklch(0.708 0 0);
+}
+
+.dark {
+  --background: oklch(0.145 0 0);
+  --foreground: oklch(0.985 0 0);
+  --card: oklch(0.205 0 0);
+  --card-foreground: oklch(0.985 0 0);
+  --popover: oklch(0.205 0 0);
+  --popover-foreground: oklch(0.985 0 0);
+  --primary: oklch(0.922 0 0);
+  --primary-foreground: oklch(0.205 0 0);
+  --secondary: oklch(0.269 0 0);
+  --secondary-foreground: oklch(0.985 0 0);
+  --muted: oklch(0.269 0 0);
+  --muted-foreground: oklch(0.708 0 0);
+  --accent: oklch(0.269 0 0);
+  --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(0.556 0 0);
+  --chart-1: oklch(0.488 0.243 264.376);
+  --chart-2: oklch(0.696 0.17 162.48);
+  --chart-3: oklch(0.769 0.188 70.08);
+  --chart-4: oklch(0.627 0.265 303.9);
+  --chart-5: oklch(0.645 0.246 16.439);
+  --sidebar: oklch(0.205 0 0);
+  --sidebar-foreground: oklch(0.985 0 0);
+  --sidebar-primary: oklch(0.488 0.243 264.376);
+  --sidebar-primary-foreground: oklch(0.985 0 0);
+  --sidebar-accent: oklch(0.269 0 0);
+  --sidebar-accent-foreground: oklch(0.985 0 0);
+  --sidebar-border: oklch(1 0 0 / 10%);
+  --sidebar-ring: oklch(0.556 0 0);
+}
+
+@layer base {
+  * {
+    @apply border-border outline-ring/50;
+  }
+  body {
+    @apply bg-background text-foreground;
   }
 }
-
-body {
-  background: var(--background);
-  color: var(--foreground);
-  font-family: Arial, Helvetica, sans-serif;
-}

src/app/json-formatter/page.tsx

@@ -0,0 +1,76 @@
+"use client";
+
+import { Button } from "@/components/ui/button";
+import { Textarea } from "@/components/ui/textarea";
+import { useState } from "react";
+import Link from "next/link";
+
+export default function JsonFormatterPage() {
+  const [input, setInput] = useState("");
+  const [output, setOutput] = useState("");
+  const [error, setError] = useState("");
+
+  const formatJson = () => {
+    try {
+      const formatted = JSON.stringify(JSON.parse(input), null, 2);
+      setOutput(formatted);
+      setError("");
+    } catch (e: any) {
+      setError("Invalid JSON: " + e.message);
+      setOutput("");
+    }
+  };
+
+  const copyToClipboard = () => {
+    navigator.clipboard.writeText(output);
+  };
+
+  const clearText = () => {
+    setInput("");
+    setOutput("");
+    setError("");
+  };
+
+  return (
+    <div className="container mx-auto p-4">
+      <header className="mb-8">
+        <Link href="/" className="text-blue-500 hover:underline">
+          &larr; Back to Home
+        </Link>
+        <h1 className="text-4xl font-bold mt-4">JSON Formatter</h1>
+      </header>
+      <main className="grid md:grid-cols-2 gap-4">
+        <div className="flex flex-col gap-2">
+          <label htmlFor="json-input">Input</label>
+          <Textarea
+            id="json-input"
+            value={input}
+            onChange={(e) => setInput(e.target.value)}
+            placeholder="Paste your JSON here"
+            className="h-96"
+          />
+        </div>
+        <div className="flex flex-col gap-2">
+          <label htmlFor="json-output">Output</label>
+          <Textarea
+            id="json-output"
+            value={output}
+            readOnly
+            placeholder="Formatted JSON will appear here"
+            className="h-96"
+          />
+        </div>
+      </main>
+      <footer className="mt-4 flex gap-2">
+        <Button onClick={formatJson}>Format JSON</Button>
+        <Button onClick={copyToClipboard} disabled={!output}>
+          Copy to Clipboard
+        </Button>
+        <Button onClick={clearText} variant="destructive">
+          Clear
+        </Button>
+      </footer>
+      {error && <p className="text-red-500 mt-4">{error}</p>}
+    </div>
+  );
+}

src/app/layout.tsx

@@ -1,6 +1,8 @@
 import type { Metadata } from "next";
 import { Geist, Geist_Mono } from "next/font/google";
 import "./globals.css";
+import { ThemeProvider } from "next-themes";
+import { Navbar } from "@/components/nav";
 
 const geistSans = Geist({
   variable: "--font-geist-sans",
@@ -13,8 +15,8 @@ const geistMono = Geist_Mono({
 });
 
 export const metadata: Metadata = {
-  title: "Create Next App",
-  description: "Generated by create next app",
+  title: "Web Tools",
+  description: "A collection of useful web tools.",
 };
 
 export default function RootLayout({
@@ -23,11 +25,21 @@ export default function RootLayout({
   children: React.ReactNode;
 }>) {
   return (
-    <html lang="en">
+    <html lang="en" suppressHydrationWarning>
       <body
         className={`${geistSans.variable} ${geistMono.variable} antialiased`}
       >
-        {children}
+        <ThemeProvider
+          attribute="class"
+          defaultTheme="system"
+          enableSystem
+          disableTransitionOnChange
+        >
+          <div className="relative flex min-h-screen flex-col">
+            <Navbar />
+            <div className="flex-1">{children}</div>
+          </div>
+        </ThemeProvider>
       </body>
     </html>
   );

src/app/page.tsx

@@ -1,103 +1,33 @@
-import Image from "next/image";
+import {
+  Card,
+  CardDescription,
+  CardHeader,
+  CardTitle,
+} from "@/components/ui/card";
+import { tools } from "@/lib/tools";
+import Link from "next/link";
 
 export default function Home() {
   return (
-    <div className="font-sans grid grid-rows-[20px_1fr_20px] items-center justify-items-center min-h-screen p-8 pb-20 gap-16 sm:p-20">
-      <main className="flex flex-col gap-[32px] row-start-2 items-center sm:items-start">
-        <Image
-          className="dark:invert"
-          src="/next.svg"
-          alt="Next.js logo"
-          width={180}
-          height={38}
-          priority
-        />
-        <ol className="font-mono list-inside list-decimal text-sm/6 text-center sm:text-left">
-          <li className="mb-2 tracking-[-.01em]">
-            Get started by editing{" "}
-            <code className="bg-black/[.05] dark:bg-white/[.06] font-mono font-semibold px-1 py-0.5 rounded">
-              src/app/page.tsx
-            </code>
-            .
-          </li>
-          <li className="tracking-[-.01em]">
-            Save and see your changes instantly.
-          </li>
-        </ol>
+    <main className="container mx-auto p-4 sm:p-6 md:p-8">
+      <header className="my-8">
+        <h1 className="text-4xl font-bold tracking-tight lg:text-5xl">
+          Web Tools
+        </h1>
+      </header>
 
-        <div className="flex gap-4 items-center flex-col sm:flex-row">
-          <a
-            className="rounded-full border border-solid border-transparent transition-colors flex items-center justify-center bg-foreground text-background gap-2 hover:bg-[#383838] dark:hover:bg-[#ccc] font-medium text-sm sm:text-base h-10 sm:h-12 px-4 sm:px-5 sm:w-auto"
-            href="https://vercel.com/new?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-            target="_blank"
-            rel="noopener noreferrer"
-          >
-            <Image
-              className="dark:invert"
-              src="/vercel.svg"
-              alt="Vercel logomark"
-              width={20}
-              height={20}
-            />
-            Deploy now
-          </a>
-          <a
-            className="rounded-full border border-solid border-black/[.08] dark:border-white/[.145] transition-colors flex items-center justify-center hover:bg-[#f2f2f2] dark:hover:bg-[#1a1a1a] hover:border-transparent font-medium text-sm sm:text-base h-10 sm:h-12 px-4 sm:px-5 w-full sm:w-auto md:w-[158px]"
-            href="https://nextjs.org/docs?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-            target="_blank"
-            rel="noopener noreferrer"
-          >
-            Read our docs
-          </a>
-        </div>
-      </main>
-      <footer className="row-start-3 flex gap-[24px] flex-wrap items-center justify-center">
-        <a
-          className="flex items-center gap-2 hover:underline hover:underline-offset-4"
-          href="https://nextjs.org/learn?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-          target="_blank"
-          rel="noopener noreferrer"
-        >
-          <Image
-            aria-hidden
-            src="/file.svg"
-            alt="File icon"
-            width={16}
-            height={16}
-          />
-          Learn
-        </a>
-        <a
-          className="flex items-center gap-2 hover:underline hover:underline-offset-4"
-          href="https://vercel.com/templates?framework=next.js&utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-          target="_blank"
-          rel="noopener noreferrer"
-        >
-          <Image
-            aria-hidden
-            src="/window.svg"
-            alt="Window icon"
-            width={16}
-            height={16}
-          />
-          Examples
-        </a>
-        <a
-          className="flex items-center gap-2 hover:underline hover:underline-offset-4"
-          href="https://nextjs.org?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-          target="_blank"
-          rel="noopener noreferrer"
-        >
-          <Image
-            aria-hidden
-            src="/globe.svg"
-            alt="Globe icon"
-            width={16}
-            height={16}
-          />
-          Go to nextjs.org →
-        </a>
-      </footer>
-    </div>
+      <div className="grid gap-4 md:grid-cols-2 lg:grid-cols-3">
+        {tools.map((tool) => (
+          <Link href={tool.href} key={tool.href} passHref>
+            <Card className="h-full hover:bg-muted/50 transition-colors">
+              <CardHeader>
+                <CardTitle>{tool.title}</CardTitle>
+                <CardDescription>{tool.description}</CardDescription>
+              </CardHeader>
+            </Card>
+          </Link>
+        ))}
+      </div>
+    </main>
   );
 }

src/app/rt-guide/board-form.tsx

@@ -0,0 +1,296 @@
+"use client";
+
+import {
+    Card,
+    CardContent,
+    CardHeader,
+    CardTitle,
+} from "@/components/ui/card";
+import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
+import {
+    Select,
+    SelectContent,
+    SelectItem,
+    SelectTrigger,
+    SelectValue,
+} from "@/components/ui/select";
+import { Separator } from "@/components/ui/separator";
+import { Switch } from "@/components/ui/switch";
+import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
+import { BoardData, TrainType } from "./types";
+
+interface BoardFormProps {
+    data: BoardData;
+    setData: (data: BoardData) => void;
+}
+
+export function BoardForm({ data, setData }: BoardFormProps) {
+    const handleStatusBarChange = (field: string, value: string) => {
+        setData({ ...data, statusBar: { ...data.statusBar, [field]: value } });
+    };
+
+    const handleTrainChange = (index: number, field: string, value: any) => {
+        const newTrains = [...data.trains];
+        const trainToUpdate = { ...newTrains[index] };
+
+        if (field === "destination.en" || field === "destination.cn") {
+            const [, subkey] = field.split(".");
+            (trainToUpdate.destination as any)[subkey] = value;
+        } else {
+            (trainToUpdate as any)[field] = value;
+        }
+
+        newTrains[index] = trainToUpdate;
+        setData({ ...data, trains: newTrains });
+    };
+
+    const handleThemeChange = (field: string, value: string) => {
+        setData({ ...data, theme: { ...data.theme, [field]: value } });
+    };
+
+    const handleLangChange = (checked: boolean) => {
+        setData({ ...data, lang: checked ? "cn" : "en" });
+    };
+
+    return (
+        <Card className="w-full max-w-2xl">
+            <CardHeader>
+                <CardTitle>Board Configuration</CardTitle>
+            </CardHeader>
+            <CardContent>
+                <Tabs defaultValue="statusbar">
+                    <TabsList className="grid w-full grid-cols-3">
+                        <TabsTrigger value="statusbar">Status Bar</TabsTrigger>
+                        <TabsTrigger value="trains">Train Info</TabsTrigger>
+                        <TabsTrigger value="theme">Theme</TabsTrigger>
+                    </TabsList>
+
+                    {/* Status Bar Tab */}
+                    <TabsContent value="statusbar" className="mt-4">
+                        <div className="space-y-4">
+                            <div className="grid grid-cols-2 gap-4">
+                                <div>
+                                    <Label htmlFor="weather">Weather</Label>
+                                    <Select
+                                        value={data.statusBar.weather}
+                                        onValueChange={(value) =>
+                                            handleStatusBarChange("weather", value)
+                                        }
+                                    >
+                                        <SelectTrigger id="weather">
+                                            <SelectValue placeholder="Select weather" />
+                                        </SelectTrigger>
+                                        <SelectContent>
+                                            <SelectItem value="sunny">Sunny</SelectItem>
+                                            <SelectItem value="cloudy">Cloudy</SelectItem>
+                                            <SelectItem value="rainy">Rainy</SelectItem>
+                                            <SelectItem value="stormy">Stormy</SelectItem>
+                                        </SelectContent>
+                                    </Select>
+                                </div>
+                                <div>
+                                    <Label htmlFor="temperature">Temperature (°C)</Label>
+                                    <Input
+                                        id="temperature"
+                                        type="number"
+                                        value={data.statusBar.temperature}
+                                        onChange={(e) =>
+                                            handleStatusBarChange("temperature", e.target.value)
+                                        }
+                                    />
+                                </div>
+                            </div>
+                            <div>
+                                <Label htmlFor="time">Time</Label>
+                                <Input
+                                    id="time"
+                                    type="text"
+                                    value={data.statusBar.time}
+                                    onChange={(e) => handleStatusBarChange("time", e.target.value)}
+                                />
+                            </div>
+                        </div>
+                    </TabsContent>
+
+                    {/* Trains Tab */}
+                    <TabsContent value="trains" className="mt-4">
+                        <div className="space-y-6">
+                            {data.trains.map((train, index) => (
+                                <div key={index}>
+                                    <Label className="text-lg font-semibold">
+                                        Train {index + 1}
+                                    </Label>
+                                    <div className="grid grid-cols-2 gap-4 mt-2">
+                                        <div>
+                                            <Label htmlFor={`dest-en-${index}`}>
+                                                Destination (EN)
+                                            </Label>
+                                            <Input
+                                                id={`dest-en-${index}`}
+                                                value={train.destination.en}
+                                                onChange={(e) =>
+                                                    handleTrainChange(
+                                                        index,
+                                                        "destination.en",
+                                                        e.target.value
+                                                    )
+                                                }
+                                            />
+                                        </div>
+                                        <div>
+                                            <Label htmlFor={`dest-cn-${index}`}>
+                                                Destination (CN)
+                                            </Label>
+                                            <Input
+                                                id={`dest-cn-${index}`}
+                                                value={train.destination.cn}
+                                                onChange={(e) =>
+                                                    handleTrainChange(
+                                                        index,
+                                                        "destination.cn",
+                                                        e.target.value
+                                                    )
+                                                }
+                                            />
+                                        </div>
+                                        <div>
+                                            <Label htmlFor={`platform-${index}`}>Platform</Label>
+                                            <Input
+                                                id={`platform-${index}`}
+                                                value={train.platform}
+                                                onChange={(e) =>
+                                                    handleTrainChange(index, "platform", e.target.value)
+                                                }
+                                            />
+                                        </div>
+                                        <div>
+                                            <Label htmlFor={`arrival-${index}`}>Arrival</Label>
+                                            <Input
+                                                id={`arrival-${index}`}
+                                                value={train.arrival}
+                                                onChange={(e) =>
+                                                    handleTrainChange(index, "arrival", e.target.value)
+                                                }
+                                            />
+                                        </div>
+                                        <div>
+                                            <Label htmlFor={`type-${index}`}>Type</Label>
+                                            <Select
+                                                value={train.type}
+                                                onValueChange={(value: TrainType) =>
+                                                    handleTrainChange(index, "type", value)
+                                                }
+                                            >
+                                                <SelectTrigger id={`type-${index}`}>
+                                                    <SelectValue placeholder="Select type" />
+                                                </SelectTrigger>
+                                                <SelectContent>
+                                                    <SelectItem value="normal">Normal</SelectItem>
+                                                    <SelectItem value="rapid">Rapid</SelectItem>
+                                                    <SelectItem value="express">Express</SelectItem>
+                                                    <SelectItem value="through">Through</SelectItem>
+                                                </SelectContent>
+                                            </Select>
+                                        </div>
+                                    </div>
+                                    {index < data.trains.length - 1 && (
+                                        <Separator className="mt-6" />
+                                    )}
+                                </div>
+                            ))}
+                        </div>
+                    </TabsContent>
+
+                    {/* Theme Tab */}
+                    <TabsContent value="theme" className="mt-4">
+                        <div className="space-y-4">
+                            <div className="grid grid-cols-2 gap-4">
+                                <div>
+                                    <Label htmlFor="statusbar-color">Status Bar Color</Label>
+                                    <Input
+                                        id="statusbar-color"
+                                        type="color"
+                                        value={data.theme.statusBarColor}
+                                        onChange={(e) =>
+                                            handleThemeChange("statusBarColor", e.target.value)
+                                        }
+                                    />
+                                </div>
+                                <div>
+                                    <Label htmlFor="text-color">Text Color</Label>
+                                    <Input
+                                        id="text-color"
+                                        type="color"
+                                        value={data.theme.textColor}
+                                        onChange={(e) =>
+                                            handleThemeChange("textColor", e.target.value)
+                                        }
+                                    />
+                                </div>
+                                <div>
+                                    <Label htmlFor="odd-row-color">Odd Row Color</Label>
+                                    <Input
+                                        id="odd-row-color"
+                                        type="color"
+                                        value={data.theme.oddRowColor}
+                                        onChange={(e) =>
+                                            handleThemeChange("oddRowColor", e.target.value)
+                                        }
+                                    />
+                                </div>
+                                <div>
+                                    <Label htmlFor="even-row-color">Even Row Color</Label>
+                                    <Input
+                                        id="even-row-color"
+                                        type="color"
+                                        value={data.theme.evenRowColor}
+                                        onChange={(e) =>
+                                            handleThemeChange("evenRowColor", e.target.value)
+                                        }
+                                    />
+                                </div>
+                            </div>
+                            <Separator className="my-4" />
+                            <Label className="text-lg font-semibold">Train Type Colors</Label>
+                            <div className="grid grid-cols-2 gap-4">
+                                {(Object.keys(data.theme.trainTypeColors) as TrainType[]).map(
+                                    (type) => (
+                                        <div key={type}>
+                                            <Label htmlFor={`color-${type}`} className="capitalize">
+                                                {type}
+                                            </Label>
+                                            <Input
+                                                id={`color-${type}`}
+                                                type="color"
+                                                value={data.theme.trainTypeColors[type]}
+                                                onChange={(e) => {
+                                                    const newColors = {
+                                                        ...data.theme.trainTypeColors,
+                                                        [type]: e.target.value,
+                                                    };
+                                                    handleThemeChange("trainTypeColors", newColors as any);
+                                                }}
+                                            />
+                                        </div>
+                                    )
+                                )}
+                            </div>
+                            <Separator className="my-4" />
+                            <div className="flex items-center space-x-2 mt-4">
+                                <Switch
+                                    id="language-switch"
+                                    checked={data.lang === "cn"}
+                                    onCheckedChange={handleLangChange}
+                                />
+                                <Label htmlFor="language-switch">
+                                    Display Chinese (中文)
+                                </Label>
+                            </div>
+                        </div>
+                    </TabsContent>
+                </Tabs>
+            </CardContent>
+        </Card>
+    );
+}

src/app/rt-guide/page.tsx

@@ -1,5 +1,17 @@
-export default function Home() {
+import { MtrTrainInfo } from "@/components/rt-guide/mtr-train-info";
+
+export default function RtGuidePage() {
   return (
-    <></>
+    <div className="container mx-auto p-4">
+      <header className="text-center my-8">
+        <h1 className="text-4xl font-bold">Rail Transit Guide Generator</h1>
+        <p className="text-muted-foreground">
+          Customize the board and download it as an image.
+        </p>
+      </header>
+      <main>
+        <MtrTrainInfo />
+      </main>
+    </div>
   );
 }

src/app/rt-guide/types.ts

@@ -0,0 +1,35 @@
+export type TrainType = "local" | "express" | "rapid" | "through";
+
+export interface TrainInfo {
+  destination: {
+    en: string;
+    cn: string;
+  };
+  platform: string;
+  type: TrainType;
+  arrival: string;
+}
+
+export interface StatusBarInfo {
+  weather: "sunny" | "cloudy" | "rainy" | "stormy";
+  temperature: string;
+  time: string;
+}
+
+export interface ThemeInfo {
+  statusBarColor: string;
+  statusBarTextColor: string;
+  oddRowColor: string;
+  evenRowColor: string;
+  textColor: string;
+  platformBackgroundColor: string;
+  platformTextColor: string;
+  trainTypeColors: Record<TrainType, string>;
+}
+
+export interface BoardData {
+  statusBar: StatusBarInfo;
+  trains: TrainInfo[];
+  theme: ThemeInfo;
+  lang: "en" | "cn";
+}

src/components/nav.tsx

@@ -0,0 +1,20 @@
+import Link from "next/link";
+import { ThemeToggle } from "./theme-toggle";
+
+export function Navbar() {
+  return (
+    <header className="sticky top-0 z-50 w-full border-b bg-background/95 backdrop-blur supports-[backdrop-filter]:bg-background/60">
+      <div className="container flex h-14 px-4 items-center">
+        <div className="flex-1" />
+        <div className="flex-1 text-center">
+          <Link href="/" className="font-bold">
+            Web Tools
+          </Link>
+        </div>
+        <div className="flex flex-1 justify-end">
+          <ThemeToggle />
+        </div>
+      </div>
+    </header>
+  );
+}

src/components/rt-guide/mtr-board-form.tsx

@@ -0,0 +1,286 @@
+"use client";
+
+import {
+  Card,
+  CardContent,
+  CardHeader,
+  CardTitle,
+} from "@/components/ui/card";
+import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
+import { ColorPicker } from "@/components/ui/color-picker";
+import { Separator } from "@/components/ui/separator";
+import { Switch } from "@/components/ui/switch";
+import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
+import { BoardData, TrainType } from "@/app/rt-guide/types";
+
+interface MtrBoardFormProps {
+  data: BoardData;
+  setData: (data: BoardData) => void;
+}
+
+export function MtrBoardForm({ data, setData }: MtrBoardFormProps) {
+  const handleStatusBarChange = (field: string, value: string) => {
+    setData({ ...data, statusBar: { ...data.statusBar, [field]: value } });
+  };
+
+  const handleTrainChange = (index: number, field: string, value: any) => {
+    const newTrains = [...data.trains];
+    const trainToUpdate = { ...newTrains[index] };
+
+    if (field === "destination.en" || field === "destination.cn") {
+      const [, subkey] = field.split(".");
+      (trainToUpdate.destination as any)[subkey] = value;
+    } else {
+      (trainToUpdate as any)[field] = value;
+    }
+
+    newTrains[index] = trainToUpdate;
+    setData({ ...data, trains: newTrains });
+  };
+
+  const handleThemeChange = (field: string, value: any) => {
+    setData({ ...data, theme: { ...data.theme, [field]: value } });
+  };
+
+  const handleLangChange = (checked: boolean) => {
+    setData({ ...data, lang: checked ? "cn" : "en" });
+  };
+
+  return (
+    <Card className="w-full max-w-2xl">
+      <CardHeader>
+        <CardTitle>Board Configuration</CardTitle>
+      </CardHeader>
+      <CardContent>
+        <Tabs defaultValue="statusbar">
+          <TabsList className="grid w-full grid-cols-3">
+            <TabsTrigger value="statusbar">Status Bar</TabsTrigger>
+            <TabsTrigger value="trains">Train Info</TabsTrigger>
+            <TabsTrigger value="theme">Theme</TabsTrigger>
+          </TabsList>
+
+          {/* Status Bar Tab */}
+          <TabsContent value="statusbar" className="mt-4">
+            <div className="space-y-4">
+              <div className="grid grid-cols-2 gap-4">
+                <div>
+                  <Label htmlFor="weather">Weather</Label>
+                  <Select
+                    value={data.statusBar.weather}
+                    onValueChange={(value) =>
+                      handleStatusBarChange("weather", value)
+                    }
+                  >
+                    <SelectTrigger id="weather">
+                      <SelectValue placeholder="Select weather" />
+                    </SelectTrigger>
+                    <SelectContent>
+                      <SelectItem value="sunny">Sunny</SelectItem>
+                      <SelectItem value="cloudy">Cloudy</SelectItem>
+                      <SelectItem value="rainy">Rainy</SelectItem>
+                      <SelectItem value="stormy">Stormy</SelectItem>
+                    </SelectContent>
+                  </Select>
+                </div>
+                <div>
+                  <Label htmlFor="temperature">Temperature (°C)</Label>
+                  <Input
+                    id="temperature"
+                    type="number"
+                    value={data.statusBar.temperature}
+                    onChange={(e) =>
+                      handleStatusBarChange("temperature", e.target.value)
+                    }
+                  />
+                </div>
+              </div>
+              <div>
+                <Label htmlFor="time">Time</Label>
+                <Input
+                  id="time"
+                  type="text"
+                  value={data.statusBar.time}
+                  onChange={(e) => handleStatusBarChange("time", e.target.value)}
+                />
+              </div>
+            </div>
+          </TabsContent>
+
+          {/* Trains Tab */}
+          <TabsContent value="trains" className="mt-4">
+            <div className="space-y-6">
+              {data.trains.map((train, index) => (
+                <div key={index}>
+                  <Label className="text-lg font-semibold">
+                    Train {index + 1}
+                  </Label>
+                  <div className="grid grid-cols-2 gap-4 mt-2">
+                    <div>
+                      <Label htmlFor={`dest-en-${index}`}>
+                        Destination (EN)
+                      </Label>
+                      <Input
+                        id={`dest-en-${index}`}
+                        value={train.destination.en}
+                        onChange={(e) =>
+                          handleTrainChange(
+                            index,
+                            "destination.en",
+                            e.target.value
+                          )
+                        }
+                      />
+                    </div>
+                    <div>
+                      <Label htmlFor={`dest-cn-${index}`}>
+                        Destination (CN)
+                      </Label>
+                      <Input
+                        id={`dest-cn-${index}`}
+                        value={train.destination.cn}
+                        onChange={(e) =>
+                          handleTrainChange(
+                            index,
+                            "destination.cn",
+                            e.target.value
+                          )
+                        }
+                      />
+                    </div>
+                    <div>
+                      <Label htmlFor={`platform-${index}`}>Platform</Label>
+                      <Input
+                        id={`platform-${index}`}
+                        value={train.platform}
+                        onChange={(e) =>
+                          handleTrainChange(index, "platform", e.target.value)
+                        }
+                      />
+                    </div>
+                    <div>
+                      <Label htmlFor={`arrival-${index}`}>Arrival</Label>
+                      <Input
+                        id={`arrival-${index}`}
+                        value={train.arrival}
+                        onChange={(e) =>
+                          handleTrainChange(index, "arrival", e.target.value)
+                        }
+                      />
+                    </div>
+                    <div>
+                      <Label htmlFor={`type-${index}`}>Type</Label>
+                      <Select
+                        value={train.type}
+                        onValueChange={(value: TrainType) =>
+                          handleTrainChange(index, "type", value)
+                        }
+                      >
+                        <SelectTrigger id={`type-${index}`}>
+                          <SelectValue placeholder="Select type" />
+                        </SelectTrigger>
+                        <SelectContent>
+                          <SelectItem value="normal">Normal</SelectItem>
+                          <SelectItem value="rapid">Rapid</SelectItem>
+                          <SelectItem value="express">Express</SelectItem>
+                          <SelectItem value="through">Through</SelectItem>
+                        </SelectContent>
+                      </Select>
+                    </div>
+                  </div>
+                  {index < data.trains.length - 1 && (
+                    <Separator className="mt-6" />
+                  )}
+                </div>
+              ))}
+            </div>
+          </TabsContent>
+
+          {/* Theme Tab */}
+          <TabsContent value="theme" className="mt-4">
+            <div className="space-y-4">
+              <div className="grid grid-cols-2 gap-4">
+                <ColorPicker
+                  label="状态栏颜色"
+                  value={data.theme.statusBarColor}
+                  onChange={(value) => handleThemeChange("statusBarColor", value)}
+                />
+                <ColorPicker
+                  label="状态栏文本颜色"
+                  value={data.theme.statusBarTextColor}
+                  onChange={(value) => handleThemeChange("statusBarTextColor", value)}
+                />
+                <ColorPicker
+                  label="奇数行颜色"
+                  value={data.theme.oddRowColor}
+                  onChange={(value) => handleThemeChange("oddRowColor", value)}
+                />
+                <ColorPicker
+                  label="偶数行颜色"
+                  value={data.theme.evenRowColor}
+                  onChange={(value) => handleThemeChange("evenRowColor", value)}
+                />
+                <ColorPicker
+                  label="行文本颜色"
+                  value={data.theme.textColor}
+                  onChange={(value) => handleThemeChange("textColor", value)}
+                />
+                <ColorPicker
+                  label="月台背景颜色"
+                  value={data.theme.platformBackgroundColor}
+                  onChange={(value) => handleThemeChange("platformBackgroundColor", value)}
+                />
+                <ColorPicker
+                  label="月台文本颜色"
+                  value={data.theme.platformTextColor}
+                  onChange={(value) => handleThemeChange("platformTextColor", value)}
+                />
+              </div>
+              <Separator className="my-4" />
+              <Label className="text-lg font-semibold">Train Type Colors</Label>
+              <div className="grid grid-cols-2 gap-4">
+                {(Object.keys(data.theme.trainTypeColors) as TrainType[]).map(
+                  (type) => (
+                    <ColorPicker
+                      key={type}
+                      label={type === "local" ? "普通" : 
+                             type === "express" ? "特快" :
+                             type === "rapid" ? "快速" :
+                             type === "through" ? "直通" : type}
+                      value={data.theme.trainTypeColors[type]}
+                      onChange={(value) => {
+                        const newColors = {
+                          ...data.theme.trainTypeColors,
+                          [type]: value,
+                        };
+                        handleThemeChange("trainTypeColors", newColors);
+                      }}
+                    />
+                  )
+                )}
+              </div>
+              <Separator className="my-4" />
+              <div className="flex items-center space-x-2 mt-4">
+                <Switch
+                  id="language-switch"
+                  checked={data.lang === "cn"}
+                  onCheckedChange={handleLangChange}
+                />
+                <Label htmlFor="language-switch">
+                  Display Chinese (中文)
+                </Label>
+              </div>
+            </div>
+          </TabsContent>
+        </Tabs>
+      </CardContent>
+    </Card>
+  );
+}

src/components/rt-guide/mtr-display-board.tsx

@@ -0,0 +1,95 @@
+"use client";
+
+import { Sun, Cloud, CloudRain, Zap } from "lucide-react";
+import { BoardData, TrainType } from "@/app/rt-guide/types";
+
+interface MtrDisplayBoardProps {
+  data: BoardData;
+}
+
+const weatherIcons = {
+  sunny: <Sun />,
+  cloudy: <Cloud />,
+  rainy: <CloudRain />,
+  stormy: <Zap />,
+};
+
+const trainTypeMap: Record<TrainType, { en: string; cn: string }> = {
+  local: { en: "Local", cn: "普通" },
+  express: { en: "Express", cn: "直快" },
+  rapid: { en: "Rapid", cn: "快速" },
+  through: { en: "Through", cn: "贯通" },
+};
+
+const formatArrival = (arrival: string, lang: "en" | "cn"): string => {
+  if (lang === "cn") {
+    if (arrival.toLowerCase() === "arriving") {
+      return "即将到达";
+    }
+    return arrival.replace("min", "分钟");
+  }
+  return arrival;
+};
+
+export function MtrDisplayBoard({ data }: MtrDisplayBoardProps) {
+  const { statusBar, trains, theme, lang } = data;
+
+  return (
+    <div
+      className="w-[600px] text-2xl font-bold shadow-lg"
+      style={{ fontFamily: "'Helvetica Neue', sans-serif" }}
+    >
+      {/* Status Bar */}
+      <div
+        className="flex items-center justify-between p-2"
+        style={{
+          backgroundColor: theme.statusBarColor,
+          color: theme.statusBarTextColor,
+        }}
+      >
+        <div className="flex items-center gap-2">
+          {weatherIcons[statusBar.weather]}
+          <span>{statusBar.temperature}°C</span>
+        </div>
+        <span>{statusBar.time}</span>
+      </div>
+
+      {/* Train List */}
+      <div>
+        {trains.map((train, index) => (
+          <div
+            key={index}
+            className="grid grid-cols-[3fr_1fr_1fr_1fr] items-center p-3"
+            style={{
+              backgroundColor:
+                index % 2 === 0 ? theme.oddRowColor : theme.evenRowColor,
+              color: theme.textColor,
+            }}
+          >
+            <span className="font-semibold">
+              {lang === "en" ? train.destination.en : train.destination.cn}
+            </span>
+            <span
+              className="text-center text-lg rounded-full px-2 py-1"
+              style={{ backgroundColor: theme.trainTypeColors[train.type] }}
+            >
+              {trainTypeMap[train.type][lang]}
+            </span>
+            <span
+              className="text-center rounded-full w-8 h-8 flex items-center justify-center mx-auto"
+              style={{
+                backgroundColor: theme.platformBackgroundColor,
+                color: theme.platformTextColor,
+              }}
+            >
+              {train.platform}
+            </span>
+            <span className="text-right">
+              {formatArrival(train.arrival, lang)}
+            </span>
+          </div>
+        ))}
+      </div>
+    </div>
+  );
+}

src/components/rt-guide/mtr-train-info.tsx

@@ -0,0 +1,72 @@
+"use client";
+
+import { useState } from "react";
+import { BoardData } from "@/app/rt-guide/types";
+import { MtrDisplayBoard } from "./mtr-display-board";
+import { MtrBoardForm } from "./mtr-board-form";
+import { ScreenshotTaker } from "@/components/screenshot-taker";
+
+const initialData: BoardData = {
+  statusBar: {
+    weather: "sunny",
+    temperature: "34",
+    time: "13:21",
+  },
+  trains: [
+    {
+      destination: { en: "Wangjiazhuang", cn: "王家庄" },
+      platform: "3",
+      type: "rapid",
+      arrival: "Arriving",
+    },
+    {
+      destination: { en: "Tangjiatuo", cn: "唐家坨" },
+      platform: "3",
+      type: "express",
+      arrival: "3 min",
+    },
+    {
+      destination: { en: "Yuetong North Road", cn: "悦港北路" },
+      platform: "3",
+      type: "local",
+      arrival: "7 min",
+    },
+    {
+      destination: { en: "Shiqiaopu", cn: "石桥铺" },
+      platform: "3",
+      type: "through",
+      arrival: "10 min",
+    },
+  ],
+  theme: {
+    statusBarColor: "#0033A0",
+    statusBarTextColor: "#FFFFFF",
+    oddRowColor: "#0099CC",
+    evenRowColor: "#33CCCC",
+    textColor: "#FFFFFF",
+    platformBackgroundColor: "#00529B",
+    platformTextColor: "#FFFFFF",
+    trainTypeColors: {
+      local: "rgba(0, 0, 0, 0.2)",
+      express: "#D93A3A",
+      rapid: "#F2B705",
+      through: "#00A651",
+    },
+  },
+  lang: "en",
+};
+
+export function MtrTrainInfo() {
+  const [data, setData] = useState<BoardData>(initialData);
+
+  return (
+    <div className="grid md:grid-cols-2 gap-8">
+      <MtrBoardForm data={data} setData={setData} />
+      <div className="flex flex-col items-center">
+        <ScreenshotTaker fileName="mtr-guide.png">
+          <MtrDisplayBoard data={data} />
+        </ScreenshotTaker>
+      </div>
+    </div>
+  );
+}

src/components/screenshot-taker.tsx

@@ -0,0 +1,43 @@
+"use client";
+
+import { useRef, useCallback } from "react";
+import { toPng } from "html-to-image";
+import { Button } from "@/components/ui/button";
+
+interface ScreenshotTakerProps {
+  children: React.ReactNode;
+  fileName?: string;
+}
+
+export function ScreenshotTaker({
+  children,
+  fileName = "download.png",
+}: ScreenshotTakerProps) {
+  const ref = useRef<HTMLDivElement>(null);
+
+  const takeScreenshot = useCallback(() => {
+    if (ref.current === null) {
+      return;
+    }
+
+    toPng(ref.current, { cacheBust: true })
+      .then((dataUrl) => {
+        const link = document.createElement("a");
+        link.download = fileName;
+        link.href = dataUrl;
+        link.click();
+      })
+      .catch((err) => {
+        console.error("oops, something went wrong!", err);
+      });
+  }, [ref, fileName]);
+
+  return (
+    <div>
+      <div ref={ref}>{children}</div>
+      <Button onClick={takeScreenshot} className="mt-4">
+        Download Screenshot
+      </Button>
+    </div>
+  );
+}

src/components/theme-toggle.tsx

@@ -0,0 +1,40 @@
+"use client";
+
+import * as React from "react";
+import { Moon, Sun } from "lucide-react";
+import { useTheme } from "next-themes";
+
+import { Button } from "@/components/ui/button";
+import {
+  DropdownMenu,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuTrigger,
+} from "@/components/ui/dropdown-menu";
+
+export function ThemeToggle() {
+  const { setTheme } = useTheme();
+
+  return (
+    <DropdownMenu>
+      <DropdownMenuTrigger asChild>
+        <Button variant="outline" size="icon">
+          <Sun className="h-[1.2rem] w-[1.2rem] rotate-0 scale-100 transition-all dark:-rotate-90 dark:scale-0" />
+          <Moon className="absolute h-[1.2rem] w-[1.2rem] rotate-90 scale-0 transition-all dark:rotate-0 dark:scale-100" />
+          <span className="sr-only">Toggle theme</span>
+        </Button>
+      </DropdownMenuTrigger>
+      <DropdownMenuContent align="end">
+        <DropdownMenuItem onClick={() => setTheme("light")}>
+          Light
+        </DropdownMenuItem>
+        <DropdownMenuItem onClick={() => setTheme("dark")}>
+          Dark
+        </DropdownMenuItem>
+        <DropdownMenuItem onClick={() => setTheme("system")}>
+          System
+        </DropdownMenuItem>
+      </DropdownMenuContent>
+    </DropdownMenu>
+  );
+}

src/components/ui/button.tsx

@@ -0,0 +1,59 @@
+import * as React from "react"
+import { Slot } from "@radix-ui/react-slot"
+import { cva, type VariantProps } from "class-variance-authority"
+
+import { cn } from "@/lib/utils"
+
+const buttonVariants = cva(
+  "inline-flex items-center justify-center gap-2 whitespace-nowrap rounded-md text-sm font-medium transition-all disabled:pointer-events-none disabled:opacity-50 [&_svg]:pointer-events-none [&_svg:not([class*='size-'])]:size-4 shrink-0 [&_svg]:shrink-0 outline-none focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-[3px] aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive",
+  {
+    variants: {
+      variant: {
+        default:
+          "bg-primary text-primary-foreground shadow-xs hover:bg-primary/90",
+        destructive:
+          "bg-destructive text-white shadow-xs hover:bg-destructive/90 focus-visible:ring-destructive/20 dark:focus-visible:ring-destructive/40 dark:bg-destructive/60",
+        outline:
+          "border bg-background shadow-xs hover:bg-accent hover:text-accent-foreground dark:bg-input/30 dark:border-input dark:hover:bg-input/50",
+        secondary:
+          "bg-secondary text-secondary-foreground shadow-xs hover:bg-secondary/80",
+        ghost:
+          "hover:bg-accent hover:text-accent-foreground dark:hover:bg-accent/50",
+        link: "text-primary underline-offset-4 hover:underline",
+      },
+      size: {
+        default: "h-9 px-4 py-2 has-[>svg]:px-3",
+        sm: "h-8 rounded-md gap-1.5 px-3 has-[>svg]:px-2.5",
+        lg: "h-10 rounded-md px-6 has-[>svg]:px-4",
+        icon: "size-9",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+      size: "default",
+    },
+  }
+)
+
+function Button({
+  className,
+  variant,
+  size,
+  asChild = false,
+  ...props
+}: React.ComponentProps<"button"> &
+  VariantProps<typeof buttonVariants> & {
+    asChild?: boolean
+  }) {
+  const Comp = asChild ? Slot : "button"
+
+  return (
+    <Comp
+      data-slot="button"
+      className={cn(buttonVariants({ variant, size, className }))}
+      {...props}
+    />
+  )
+}
+
+export { Button, buttonVariants }

src/components/ui/card.tsx

@@ -0,0 +1,92 @@
+import * as React from "react"
+
+import { cn } from "@/lib/utils"
+
+function Card({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="card"
+      className={cn(
+        "bg-card text-card-foreground flex flex-col gap-6 rounded-xl border py-6 shadow-sm",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function CardHeader({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="card-header"
+      className={cn(
+        "@container/card-header grid auto-rows-min grid-rows-[auto_auto] items-start gap-1.5 px-6 has-data-[slot=card-action]:grid-cols-[1fr_auto] [.border-b]:pb-6",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function CardTitle({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="card-title"
+      className={cn("leading-none font-semibold", className)}
+      {...props}
+    />
+  )
+}
+
+function CardDescription({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="card-description"
+      className={cn("text-muted-foreground text-sm", 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-6", className)}
+      {...props}
+    />
+  )
+}
+
+function CardFooter({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="card-footer"
+      className={cn("flex items-center px-6 [.border-t]:pt-6", className)}
+      {...props}
+    />
+  )
+}
+
+export {
+  Card,
+  CardHeader,
+  CardFooter,
+  CardTitle,
+  CardAction,
+  CardDescription,
+  CardContent,
+}

src/components/ui/color-picker.tsx

@@ -0,0 +1,71 @@
+"use client";
+
+import * as React from "react";
+import { HexColorPicker, HexColorInput } from "react-colorful";
+import {
+  Popover,
+  PopoverContent,
+  PopoverTrigger,
+} from "@/components/ui/popover";
+import { Button } from "@/components/ui/button";
+import { cn } from "@/lib/utils";
+import { Label } from "@/components/ui/label";
+import { Input } from "@/components/ui/input";
+
+interface ColorPickerProps {
+  value: string;
+  onChange: (value: string) => void;
+  label?: string;
+  className?: string;
+}
+
+export function ColorPicker({
+  value,
+  onChange,
+  label,
+  className,
+}: ColorPickerProps) {
+  return (
+    <div className={cn("grid gap-2", className)}>
+      {label && <Label>{label}</Label>}
+      <Popover>
+        <PopoverTrigger asChild>
+          <Button
+            variant="outline"
+            className={cn("w-full justify-start text-left font-normal", {
+              "h-8": !label,
+            })}
+          >
+            <div className="flex items-center gap-2">
+              <div
+                className="h-4 w-4 rounded ring-1 ring-inset ring-gray-200/20"
+                style={{ backgroundColor: value }}
+              />
+              <HexColorInput
+                color={value}
+                onChange={onChange}
+                className="w-full bg-transparent outline-none"
+              />
+            </div>
+          </Button>
+        </PopoverTrigger>
+        <PopoverContent className="w-64">
+          <div className="grid gap-4">
+            <HexColorPicker color={value} onChange={onChange} />
+            <div className="flex items-center gap-2">
+              <div
+                className="h-8 w-8 rounded ring-1 ring-inset ring-gray-200/20"
+                style={{ backgroundColor: value }}
+              />
+              <Input
+                value={value}
+                onChange={(e) => onChange(e.target.value)}
+                className="flex-1"
+              />
+            </div>
+          </div>
+        </PopoverContent>
+      </Popover>
+    </div>
+  );
+}

src/components/ui/dropdown-menu.tsx

@@ -0,0 +1,257 @@
+"use client"
+
+import * as React from "react"
+import * as DropdownMenuPrimitive from "@radix-ui/react-dropdown-menu"
+import { CheckIcon, ChevronRightIcon, CircleIcon } from "lucide-react"
+
+import { cn } from "@/lib/utils"
+
+function DropdownMenu({
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Root>) {
+  return <DropdownMenuPrimitive.Root data-slot="dropdown-menu" {...props} />
+}
+
+function DropdownMenuPortal({
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Portal>) {
+  return (
+    <DropdownMenuPrimitive.Portal data-slot="dropdown-menu-portal" {...props} />
+  )
+}
+
+function DropdownMenuTrigger({
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Trigger>) {
+  return (
+    <DropdownMenuPrimitive.Trigger
+      data-slot="dropdown-menu-trigger"
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuContent({
+  className,
+  sideOffset = 4,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Content>) {
+  return (
+    <DropdownMenuPrimitive.Portal>
+      <DropdownMenuPrimitive.Content
+        data-slot="dropdown-menu-content"
+        sideOffset={sideOffset}
+        className={cn(
+          "bg-popover text-popover-foreground data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 z-50 max-h-(--radix-dropdown-menu-content-available-height) min-w-[8rem] origin-(--radix-dropdown-menu-content-transform-origin) overflow-x-hidden overflow-y-auto rounded-md border p-1 shadow-md",
+          className
+        )}
+        {...props}
+      />
+    </DropdownMenuPrimitive.Portal>
+  )
+}
+
+function DropdownMenuGroup({
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Group>) {
+  return (
+    <DropdownMenuPrimitive.Group data-slot="dropdown-menu-group" {...props} />
+  )
+}
+
+function DropdownMenuItem({
+  className,
+  inset,
+  variant = "default",
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Item> & {
+  inset?: boolean
+  variant?: "default" | "destructive"
+}) {
+  return (
+    <DropdownMenuPrimitive.Item
+      data-slot="dropdown-menu-item"
+      data-inset={inset}
+      data-variant={variant}
+      className={cn(
+        "focus:bg-accent focus:text-accent-foreground data-[variant=destructive]:text-destructive data-[variant=destructive]:focus:bg-destructive/10 dark:data-[variant=destructive]:focus:bg-destructive/20 data-[variant=destructive]:focus:text-destructive data-[variant=destructive]:*:[svg]:!text-destructive [&_svg:not([class*='text-'])]:text-muted-foreground relative flex cursor-default items-center gap-2 rounded-sm px-2 py-1.5 text-sm outline-hidden select-none data-[disabled]:pointer-events-none data-[disabled]:opacity-50 data-[inset]:pl-8 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuCheckboxItem({
+  className,
+  children,
+  checked,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.CheckboxItem>) {
+  return (
+    <DropdownMenuPrimitive.CheckboxItem
+      data-slot="dropdown-menu-checkbox-item"
+      className={cn(
+        "focus:bg-accent focus:text-accent-foreground relative flex cursor-default items-center gap-2 rounded-sm py-1.5 pr-2 pl-8 text-sm outline-hidden select-none 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 left-2 flex size-3.5 items-center justify-center">
+        <DropdownMenuPrimitive.ItemIndicator>
+          <CheckIcon className="size-4" />
+        </DropdownMenuPrimitive.ItemIndicator>
+      </span>
+      {children}
+    </DropdownMenuPrimitive.CheckboxItem>
+  )
+}
+
+function DropdownMenuRadioGroup({
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.RadioGroup>) {
+  return (
+    <DropdownMenuPrimitive.RadioGroup
+      data-slot="dropdown-menu-radio-group"
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuRadioItem({
+  className,
+  children,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.RadioItem>) {
+  return (
+    <DropdownMenuPrimitive.RadioItem
+      data-slot="dropdown-menu-radio-item"
+      className={cn(
+        "focus:bg-accent focus:text-accent-foreground relative flex cursor-default items-center gap-2 rounded-sm py-1.5 pr-2 pl-8 text-sm outline-hidden select-none 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 left-2 flex size-3.5 items-center justify-center">
+        <DropdownMenuPrimitive.ItemIndicator>
+          <CircleIcon className="size-2 fill-current" />
+        </DropdownMenuPrimitive.ItemIndicator>
+      </span>
+      {children}
+    </DropdownMenuPrimitive.RadioItem>
+  )
+}
+
+function DropdownMenuLabel({
+  className,
+  inset,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Label> & {
+  inset?: boolean
+}) {
+  return (
+    <DropdownMenuPrimitive.Label
+      data-slot="dropdown-menu-label"
+      data-inset={inset}
+      className={cn(
+        "px-2 py-1.5 text-sm font-medium data-[inset]:pl-8",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuSeparator({
+  className,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Separator>) {
+  return (
+    <DropdownMenuPrimitive.Separator
+      data-slot="dropdown-menu-separator"
+      className={cn("bg-border -mx-1 my-1 h-px", className)}
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuShortcut({
+  className,
+  ...props
+}: React.ComponentProps<"span">) {
+  return (
+    <span
+      data-slot="dropdown-menu-shortcut"
+      className={cn(
+        "text-muted-foreground ml-auto text-xs tracking-widest",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuSub({
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Sub>) {
+  return <DropdownMenuPrimitive.Sub data-slot="dropdown-menu-sub" {...props} />
+}
+
+function DropdownMenuSubTrigger({
+  className,
+  inset,
+  children,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.SubTrigger> & {
+  inset?: boolean
+}) {
+  return (
+    <DropdownMenuPrimitive.SubTrigger
+      data-slot="dropdown-menu-sub-trigger"
+      data-inset={inset}
+      className={cn(
+        "focus:bg-accent focus:text-accent-foreground data-[state=open]:bg-accent data-[state=open]:text-accent-foreground flex cursor-default items-center rounded-sm px-2 py-1.5 text-sm outline-hidden select-none data-[inset]:pl-8",
+        className
+      )}
+      {...props}
+    >
+      {children}
+      <ChevronRightIcon className="ml-auto size-4" />
+    </DropdownMenuPrimitive.SubTrigger>
+  )
+}
+
+function DropdownMenuSubContent({
+  className,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.SubContent>) {
+  return (
+    <DropdownMenuPrimitive.SubContent
+      data-slot="dropdown-menu-sub-content"
+      className={cn(
+        "bg-popover text-popover-foreground data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 z-50 min-w-[8rem] origin-(--radix-dropdown-menu-content-transform-origin) overflow-hidden rounded-md border p-1 shadow-lg",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export {
+  DropdownMenu,
+  DropdownMenuPortal,
+  DropdownMenuTrigger,
+  DropdownMenuContent,
+  DropdownMenuGroup,
+  DropdownMenuLabel,
+  DropdownMenuItem,
+  DropdownMenuCheckboxItem,
+  DropdownMenuRadioGroup,
+  DropdownMenuRadioItem,
+  DropdownMenuSeparator,
+  DropdownMenuShortcut,
+  DropdownMenuSub,
+  DropdownMenuSubTrigger,
+  DropdownMenuSubContent,
+}

src/components/ui/input.tsx

@@ -0,0 +1,21 @@
+import * as React from "react"
+
+import { cn } from "@/lib/utils"
+
+function Input({ className, type, ...props }: React.ComponentProps<"input">) {
+  return (
+    <input
+      type={type}
+      data-slot="input"
+      className={cn(
+        "file:text-foreground placeholder:text-muted-foreground selection:bg-primary selection:text-primary-foreground dark:bg-input/30 border-input flex h-9 w-full min-w-0 rounded-md border bg-transparent px-3 py-1 text-base shadow-xs transition-[color,box-shadow] outline-none file:inline-flex file:h-7 file:border-0 file:bg-transparent file:text-sm file:font-medium disabled:pointer-events-none disabled:cursor-not-allowed disabled:opacity-50 md:text-sm",
+        "focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-[3px]",
+        "aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export { Input }

src/components/ui/label.tsx

@@ -0,0 +1,24 @@
+"use client"
+
+import * as React from "react"
+import * as LabelPrimitive from "@radix-ui/react-label"
+
+import { cn } from "@/lib/utils"
+
+function Label({
+  className,
+  ...props
+}: React.ComponentProps<typeof LabelPrimitive.Root>) {
+  return (
+    <LabelPrimitive.Root
+      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 }

src/components/ui/popover.tsx

@@ -0,0 +1,48 @@
+"use client"
+
+import * as React from "react"
+import * as PopoverPrimitive from "@radix-ui/react-popover"
+
+import { cn } from "@/lib/utils"
+
+function Popover({
+  ...props
+}: React.ComponentProps<typeof PopoverPrimitive.Root>) {
+  return <PopoverPrimitive.Root data-slot="popover" {...props} />
+}
+
+function PopoverTrigger({
+  ...props
+}: React.ComponentProps<typeof PopoverPrimitive.Trigger>) {
+  return <PopoverPrimitive.Trigger data-slot="popover-trigger" {...props} />
+}
+
+function PopoverContent({
+  className,
+  align = "center",
+  sideOffset = 4,
+  ...props
+}: React.ComponentProps<typeof PopoverPrimitive.Content>) {
+  return (
+    <PopoverPrimitive.Portal>
+      <PopoverPrimitive.Content
+        data-slot="popover-content"
+        align={align}
+        sideOffset={sideOffset}
+        className={cn(
+          "bg-popover text-popover-foreground data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 z-50 w-72 origin-(--radix-popover-content-transform-origin) rounded-md border p-4 shadow-md outline-hidden",
+          className
+        )}
+        {...props}
+      />
+    </PopoverPrimitive.Portal>
+  )
+}
+
+function PopoverAnchor({
+  ...props
+}: React.ComponentProps<typeof PopoverPrimitive.Anchor>) {
+  return <PopoverPrimitive.Anchor data-slot="popover-anchor" {...props} />
+}
+
+export { Popover, PopoverTrigger, PopoverContent, PopoverAnchor }

src/components/ui/select.tsx

@@ -0,0 +1,185 @@
+"use client"
+
+import * as React from "react"
+import * as SelectPrimitive from "@radix-ui/react-select"
+import { CheckIcon, ChevronDownIcon, ChevronUpIcon } from "lucide-react"
+
+import { cn } from "@/lib/utils"
+
+function Select({
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.Root>) {
+  return <SelectPrimitive.Root data-slot="select" {...props} />
+}
+
+function SelectGroup({
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.Group>) {
+  return <SelectPrimitive.Group data-slot="select-group" {...props} />
+}
+
+function SelectValue({
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.Value>) {
+  return <SelectPrimitive.Value data-slot="select-value" {...props} />
+}
+
+function SelectTrigger({
+  className,
+  size = "default",
+  children,
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.Trigger> & {
+  size?: "sm" | "default"
+}) {
+  return (
+    <SelectPrimitive.Trigger
+      data-slot="select-trigger"
+      data-size={size}
+      className={cn(
+        "border-input data-[placeholder]:text-muted-foreground [&_svg:not([class*='text-'])]:text-muted-foreground focus-visible:border-ring focus-visible:ring-ring/50 aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive dark:bg-input/30 dark:hover:bg-input/50 flex w-fit items-center justify-between gap-2 rounded-md border bg-transparent px-3 py-2 text-sm whitespace-nowrap shadow-xs transition-[color,box-shadow] outline-none focus-visible:ring-[3px] disabled:cursor-not-allowed disabled:opacity-50 data-[size=default]:h-9 data-[size=sm]:h-8 *:data-[slot=select-value]:line-clamp-1 *:data-[slot=select-value]:flex *:data-[slot=select-value]:items-center *:data-[slot=select-value]:gap-2 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    >
+      {children}
+      <SelectPrimitive.Icon asChild>
+        <ChevronDownIcon className="size-4 opacity-50" />
+      </SelectPrimitive.Icon>
+    </SelectPrimitive.Trigger>
+  )
+}
+
+function SelectContent({
+  className,
+  children,
+  position = "popper",
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.Content>) {
+  return (
+    <SelectPrimitive.Portal>
+      <SelectPrimitive.Content
+        data-slot="select-content"
+        className={cn(
+          "bg-popover text-popover-foreground data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 relative z-50 max-h-(--radix-select-content-available-height) min-w-[8rem] origin-(--radix-select-content-transform-origin) overflow-x-hidden overflow-y-auto rounded-md border shadow-md",
+          position === "popper" &&
+            "data-[side=bottom]:translate-y-1 data-[side=left]:-translate-x-1 data-[side=right]:translate-x-1 data-[side=top]:-translate-y-1",
+          className
+        )}
+        position={position}
+        {...props}
+      >
+        <SelectScrollUpButton />
+        <SelectPrimitive.Viewport
+          className={cn(
+            "p-1",
+            position === "popper" &&
+              "h-[var(--radix-select-trigger-height)] w-full min-w-[var(--radix-select-trigger-width)] scroll-my-1"
+          )}
+        >
+          {children}
+        </SelectPrimitive.Viewport>
+        <SelectScrollDownButton />
+      </SelectPrimitive.Content>
+    </SelectPrimitive.Portal>
+  )
+}
+
+function SelectLabel({
+  className,
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.Label>) {
+  return (
+    <SelectPrimitive.Label
+      data-slot="select-label"
+      className={cn("text-muted-foreground px-2 py-1.5 text-xs", className)}
+      {...props}
+    />
+  )
+}
+
+function SelectItem({
+  className,
+  children,
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.Item>) {
+  return (
+    <SelectPrimitive.Item
+      data-slot="select-item"
+      className={cn(
+        "focus:bg-accent focus:text-accent-foreground [&_svg:not([class*='text-'])]:text-muted-foreground relative flex w-full cursor-default items-center gap-2 rounded-sm py-1.5 pr-8 pl-2 text-sm outline-hidden select-none 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}
+    >
+      <span className="absolute right-2 flex size-3.5 items-center justify-center">
+        <SelectPrimitive.ItemIndicator>
+          <CheckIcon className="size-4" />
+        </SelectPrimitive.ItemIndicator>
+      </span>
+      <SelectPrimitive.ItemText>{children}</SelectPrimitive.ItemText>
+    </SelectPrimitive.Item>
+  )
+}
+
+function SelectSeparator({
+  className,
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.Separator>) {
+  return (
+    <SelectPrimitive.Separator
+      data-slot="select-separator"
+      className={cn("bg-border pointer-events-none -mx-1 my-1 h-px", className)}
+      {...props}
+    />
+  )
+}
+
+function SelectScrollUpButton({
+  className,
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.ScrollUpButton>) {
+  return (
+    <SelectPrimitive.ScrollUpButton
+      data-slot="select-scroll-up-button"
+      className={cn(
+        "flex cursor-default items-center justify-center py-1",
+        className
+      )}
+      {...props}
+    >
+      <ChevronUpIcon className="size-4" />
+    </SelectPrimitive.ScrollUpButton>
+  )
+}
+
+function SelectScrollDownButton({
+  className,
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.ScrollDownButton>) {
+  return (
+    <SelectPrimitive.ScrollDownButton
+      data-slot="select-scroll-down-button"
+      className={cn(
+        "flex cursor-default items-center justify-center py-1",
+        className
+      )}
+      {...props}
+    >
+      <ChevronDownIcon className="size-4" />
+    </SelectPrimitive.ScrollDownButton>
+  )
+}
+
+export {
+  Select,
+  SelectContent,
+  SelectGroup,
+  SelectItem,
+  SelectLabel,
+  SelectScrollDownButton,
+  SelectScrollUpButton,
+  SelectSeparator,
+  SelectTrigger,
+  SelectValue,
+}

src/components/ui/separator.tsx

@@ -0,0 +1,28 @@
+"use client"
+
+import * as React from "react"
+import * as SeparatorPrimitive from "@radix-ui/react-separator"
+
+import { cn } from "@/lib/utils"
+
+function Separator({
+  className,
+  orientation = "horizontal",
+  decorative = true,
+  ...props
+}: React.ComponentProps<typeof SeparatorPrimitive.Root>) {
+  return (
+    <SeparatorPrimitive.Root
+      data-slot="separator"
+      decorative={decorative}
+      orientation={orientation}
+      className={cn(
+        "bg-border shrink-0 data-[orientation=horizontal]:h-px data-[orientation=horizontal]:w-full data-[orientation=vertical]:h-full data-[orientation=vertical]:w-px",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export { Separator }

src/components/ui/switch.tsx

@@ -0,0 +1,31 @@
+"use client"
+
+import * as React from "react"
+import * as SwitchPrimitive from "@radix-ui/react-switch"
+
+import { cn } from "@/lib/utils"
+
+function Switch({
+  className,
+  ...props
+}: React.ComponentProps<typeof SwitchPrimitive.Root>) {
+  return (
+    <SwitchPrimitive.Root
+      data-slot="switch"
+      className={cn(
+        "peer data-[state=checked]:bg-primary data-[state=unchecked]:bg-input focus-visible:border-ring focus-visible:ring-ring/50 dark:data-[state=unchecked]:bg-input/80 inline-flex h-[1.15rem] w-8 shrink-0 items-center rounded-full border border-transparent shadow-xs transition-all outline-none focus-visible:ring-[3px] disabled:cursor-not-allowed disabled:opacity-50",
+        className
+      )}
+      {...props}
+    >
+      <SwitchPrimitive.Thumb
+        data-slot="switch-thumb"
+        className={cn(
+          "bg-background dark:data-[state=unchecked]:bg-foreground dark:data-[state=checked]:bg-primary-foreground pointer-events-none block size-4 rounded-full ring-0 transition-transform data-[state=checked]:translate-x-[calc(100%-2px)] data-[state=unchecked]:translate-x-0"
+        )}
+      />
+    </SwitchPrimitive.Root>
+  )
+}
+
+export { Switch }

src/components/ui/tabs.tsx

@@ -0,0 +1,66 @@
+"use client"
+
+import * as React from "react"
+import * as TabsPrimitive from "@radix-ui/react-tabs"
+
+import { cn } from "@/lib/utils"
+
+function Tabs({
+  className,
+  ...props
+}: React.ComponentProps<typeof TabsPrimitive.Root>) {
+  return (
+    <TabsPrimitive.Root
+      data-slot="tabs"
+      className={cn("flex flex-col gap-2", className)}
+      {...props}
+    />
+  )
+}
+
+function TabsList({
+  className,
+  ...props
+}: React.ComponentProps<typeof TabsPrimitive.List>) {
+  return (
+    <TabsPrimitive.List
+      data-slot="tabs-list"
+      className={cn(
+        "bg-muted text-muted-foreground inline-flex h-9 w-fit items-center justify-center rounded-lg p-[3px]",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function TabsTrigger({
+  className,
+  ...props
+}: React.ComponentProps<typeof TabsPrimitive.Trigger>) {
+  return (
+    <TabsPrimitive.Trigger
+      data-slot="tabs-trigger"
+      className={cn(
+        "data-[state=active]:bg-background dark:data-[state=active]:text-foreground focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:outline-ring dark:data-[state=active]:border-input dark:data-[state=active]:bg-input/30 text-foreground dark:text-muted-foreground inline-flex h-[calc(100%-1px)] flex-1 items-center justify-center gap-1.5 rounded-md border border-transparent px-2 py-1 text-sm font-medium whitespace-nowrap transition-[color,box-shadow] focus-visible:ring-[3px] focus-visible:outline-1 disabled:pointer-events-none disabled:opacity-50 data-[state=active]:shadow-sm [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function TabsContent({
+  className,
+  ...props
+}: React.ComponentProps<typeof TabsPrimitive.Content>) {
+  return (
+    <TabsPrimitive.Content
+      data-slot="tabs-content"
+      className={cn("flex-1 outline-none", className)}
+      {...props}
+    />
+  )
+}
+
+export { Tabs, TabsList, TabsTrigger, TabsContent }

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(
+        "border-input placeholder:text-muted-foreground focus-visible:border-ring focus-visible:ring-ring/50 aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive dark:bg-input/30 flex field-sizing-content min-h-16 w-full rounded-md border bg-transparent px-3 py-2 text-base shadow-xs transition-[color,box-shadow] outline-none focus-visible:ring-[3px] disabled:cursor-not-allowed disabled:opacity-50 md:text-sm",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export { Textarea }

src/lib/tools.ts

@@ -0,0 +1,23 @@
+export interface Tool {
+  title: string;
+  description: string;
+  href: string;
+}
+
+export const tools: Tool[] = [
+  {
+    title: "Rail Transit Guide",
+    description: "轨道交通导视生成器",
+    href: "/rt-guide",
+  },
+  {
+    title: "URL Encoder/Decoder",
+    description: "Encode or decode URLs and strings.",
+    href: "/url-encoder",
+  },
+  {
+    title: "Base64 Encoder/Decoder",
+    description: "Encode or decode strings to and from Base64.",
+    href: "/base64-encoder",
+  },
+];

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))
+}