refactor: extract ColorManipulation component and pass icon/summary to AppPage

- Rename ColorPage → ColorManipulation (no AppPage wrapper inside)
- Move AppPage + title/description/icon to color/page.tsx, consistent with other tools
- AppPage now accepts icon prop directly; removes internal usePathname lookup and 'use client'
- All tool pages pass tool.summary as description and tool.icon as icon

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/(app)/ascii/page.tsx

@@ -11,7 +11,8 @@ export default function ASCIIPage() {
   return (
     <AppPage
       title={tool.title}
-      description={tool.description}
+      description={tool.summary}
+      icon={tool.icon}
     >
       <ASCIIConverter />
     </AppPage>

app/(app)/color/page.tsx

@@ -1,11 +1,20 @@
 import type { Metadata } from 'next';
+import { ColorManipulation } from '@/components/color/ColorManipulation';
+import { AppPage } from '@/components/layout/AppPage';
 import { getToolByHref } from '@/lib/tools';
-import { ColorPage } from '@/components/color/ColorPage';
 
 const tool = getToolByHref('/color')!;
 
 export const metadata: Metadata = { title: tool.title };
 
-export default function Page() {
+export default function ColorPage() {
-  return <ColorPage />;
+  return (
+    <AppPage
+      title={tool.title}
+      description={tool.summary}
+      icon={tool.icon}
+    >
+      <ColorManipulation />
+    </AppPage>
+  );
 }

app/(app)/favicon/page.tsx

@@ -11,7 +11,8 @@ export default function FaviconPage() {
   return (
     <AppPage
       title={tool.title}
-      description={tool.description}
+      description={tool.summary}
+      icon={tool.icon}
     >
       <FaviconGenerator />
     </AppPage>

app/(app)/media/page.tsx

@@ -11,7 +11,8 @@ export default function MediaPage() {
   return (
     <AppPage
       title={tool.title}
-      description={tool.description}
+      description={tool.summary}
+      icon={tool.icon}
     >
       <FileConverter />
     </AppPage>

app/(app)/qrcode/page.tsx

@@ -11,7 +11,8 @@ export default function QRCodePage() {
   return (
     <AppPage
       title={tool.title}
-      description={tool.description}
+      description={tool.summary}
+      icon={tool.icon}
     >
       <QRCodeGenerator />
     </AppPage>

app/(app)/units/page.tsx

@@ -11,7 +11,8 @@ export default function UnitsPage() {
   return (
     <AppPage
       title={tool.title}
-      description={tool.description}
+      description={tool.summary}
+      icon={tool.icon}
     >
       <MainConverter />
     </AppPage>

components/color/ColorManipulation.tsx

@@ -0,0 +1,378 @@
+'use client';
+
+import { useState, useEffect, Suspense } from 'react';
+import { useSearchParams, useRouter } from 'next/navigation';
+import { ColorPicker } from '@/components/color/ColorPicker';
+import { ColorInfo } from '@/components/color/ColorInfo';
+import { ManipulationPanel } from '@/components/color/ManipulationPanel';
+import { PaletteGrid } from '@/components/color/PaletteGrid';
+import { ExportMenu } from '@/components/color/ExportMenu';
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
+import { useColorInfo, useGeneratePalette, useGenerateGradient } from '@/lib/color/api/queries';
+import { Loader2, Share2, Palette, Plus, X, Layers } from 'lucide-react';
+import { Button } from '@/components/ui/button';
+import { Input } from '@/components/ui/input';
+import { Label } from '@/components/ui/label';
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from '@/components/ui/select';
+import { toast } from 'sonner';
+
+type HarmonyType =
+  | 'monochromatic'
+  | 'analogous'
+  | 'complementary'
+  | 'triadic'
+  | 'tetradic';
+
+function ColorManipulationContent() {
+  const searchParams = useSearchParams();
+  const router = useRouter();
+  const [color, setColor] = useState(() => {
+    const urlColor = searchParams.get('color');
+    return urlColor ? `#${urlColor.replace('#', '')}` : '#ff0099';
+  });
+
+  // Harmony state
+  const [harmonyType, setHarmonyType] = useState<HarmonyType>('complementary');
+  const [palette, setPalette] = useState<string[]>([]);
+  const paletteMutation = useGeneratePalette();
+
+  // Gradient state
+  const [stops, setStops] = useState<string[]>(['#ff0099', '#0099ff']);
+  const [gradientCount, setGradientCount] = useState(10);
+  const [gradientResult, setGradientResult] = useState<string[]>([]);
+  const gradientMutation = useGenerateGradient();
+
+  const { data, isLoading, isError, error } = useColorInfo({
+    colors: [color],
+  });
+
+  const colorInfo = data?.colors[0];
+
+  // Update URL when color changes
+  useEffect(() => {
+    const hex = color.replace('#', '');
+    if (hex.length === 6 || hex.length === 3) {
+      router.push(`/color?color=${hex}`, { scroll: false });
+    }
+  }, [color, router]);
+
+  // Sync first gradient stop with active color
+  useEffect(() => {
+    const newStops = [...stops];
+    newStops[0] = color;
+    setStops(newStops);
+  }, [color]);
+
+  const handleShare = () => {
+    const url = `${window.location.origin}/color?color=${color.replace('#', '')}`;
+    navigator.clipboard.writeText(url);
+    toast.success('Link copied to clipboard!');
+  };
+
+  const generateHarmony = async () => {
+    try {
+      const result = await paletteMutation.mutateAsync({
+        base: color,
+        scheme: harmonyType,
+      });
+
+      const colors = [result.palette.primary, ...result.palette.secondary];
+      setPalette(colors);
+      toast.success(`Generated ${harmonyType} harmony palette`);
+    } catch (error) {
+      toast.error('Failed to generate harmony palette');
+      console.error(error);
+    }
+  };
+
+  const generateGradient = async () => {
+    try {
+      const result = await gradientMutation.mutateAsync({
+        stops,
+        count: gradientCount,
+      });
+      setGradientResult(result.gradient);
+      toast.success(`Generated ${result.gradient.length} colors`);
+    } catch (error) {
+      toast.error('Failed to generate gradient');
+    }
+  };
+
+  const addStop = () => {
+    setStops([...stops, '#000000']);
+  };
+
+  const removeStop = (index: number) => {
+    if (index === 0) return;
+    if (stops.length > 2) {
+      setStops(stops.filter((_, i) => i !== index));
+    }
+  };
+
+  const updateStop = (index: number, colorValue: string) => {
+    const newStops = [...stops];
+    newStops[index] = colorValue;
+    setStops(newStops);
+    if (index === 0) setColor(colorValue);
+  };
+
+  const harmonyDescriptions: Record<HarmonyType, string> = {
+    monochromatic: 'Single color with variations',
+    analogous: 'Colors adjacent on the color wheel (±30°)',
+    complementary: 'Colors opposite on the color wheel (180°)',
+    triadic: 'Three colors evenly spaced on the color wheel (120°)',
+    tetradic: 'Four colors evenly spaced on the color wheel (90°)',
+  };
+
+  return (
+    <div className="space-y-6">
+      {/* Row 1: Workspace */}
+      <div className="grid grid-cols-1 lg:grid-cols-3 gap-6 items-stretch">
+        {/* Main Workspace: Color Picker and Information */}
+        <div className="lg:col-span-2">
+          <Card className="h-full">
+            <CardHeader className="flex flex-row items-center justify-between space-y-0">
+              <CardTitle>Color Picker</CardTitle>
+              <Button onClick={handleShare} variant="outline" size="xs">
+                <Share2 className="h-3 w-3 mr-1" />
+                Share
+              </Button>
+            </CardHeader>
+            <CardContent>
+              <div className="flex flex-col md:flex-row gap-8">
+                <div className="flex-shrink-0 mx-auto md:mx-0">
+                  <ColorPicker color={color} onChange={setColor} />
+                </div>
+
+                <div className="flex-1 min-w-0">
+                  {isLoading && (
+                    <div className="flex items-center justify-center py-12">
+                      <Loader2 className="h-6 w-6 animate-spin text-muted-foreground" />
+                    </div>
+                  )}
+
+                  {isError && (
+                    <div className="p-3 bg-destructive/10 text-destructive rounded-lg text-sm">
+                      <p className="font-medium">Error loading color information</p>
+                      <p className="mt-1">{error?.message || 'Unknown error'}</p>
+                    </div>
+                  )}
+
+                  {colorInfo && <ColorInfo info={colorInfo} />}
+                </div>
+              </div>
+            </CardContent>
+          </Card>
+        </div>
+
+        {/* Sidebar: Color Manipulation */}
+        <div className="lg:col-span-1">
+          <Card className="h-full">
+            <CardHeader>
+              <CardTitle>Adjustments</CardTitle>
+            </CardHeader>
+            <CardContent>
+              <ManipulationPanel color={color} onColorChange={setColor} />
+            </CardContent>
+          </Card>
+        </div>
+      </div>
+
+      {/* Row 2: Harmony Generator */}
+      <div className="grid grid-cols-1 lg:grid-cols-3 gap-6 items-stretch">
+        {/* Harmony Controls */}
+        <div className="lg:col-span-1">
+          <Card className="h-full">
+            <CardHeader>
+              <CardTitle>Harmony</CardTitle>
+            </CardHeader>
+            <CardContent className="space-y-4">
+              <Select
+                value={harmonyType}
+                onValueChange={(value) => setHarmonyType(value as HarmonyType)}
+              >
+                <SelectTrigger className="w-full">
+                  <SelectValue placeholder="Select harmony" />
+                </SelectTrigger>
+                <SelectContent>
+                  <SelectItem value="monochromatic">Monochromatic</SelectItem>
+                  <SelectItem value="analogous">Analogous</SelectItem>
+                  <SelectItem value="complementary">Complementary</SelectItem>
+                  <SelectItem value="triadic">Triadic</SelectItem>
+                  <SelectItem value="tetradic">Tetradic (Square)</SelectItem>
+                </SelectContent>
+              </Select>
+
+              <p className="text-xs text-muted-foreground">
+                {harmonyDescriptions[harmonyType]}
+              </p>
+
+              <Button
+                onClick={generateHarmony}
+                disabled={paletteMutation.isPending}
+                className="w-full"
+              >
+                {paletteMutation.isPending ? (
+                  <>
+                    <Loader2 className="h-3.5 w-3.5 mr-1.5 animate-spin" />
+                    Generating...
+                  </>
+                ) : (
+                  'Generate'
+                )}
+              </Button>
+            </CardContent>
+          </Card>
+        </div>
+
+        {/* Harmony Results */}
+        <div className="lg:col-span-2">
+          <Card className="h-full">
+            <CardHeader>
+              <CardTitle>
+                Palette {palette.length > 0 && <span className="text-muted-foreground font-normal text-sm ml-1">({palette.length})</span>}
+              </CardTitle>
+            </CardHeader>
+            <CardContent>
+              {palette.length > 0 ? (
+                <div className="space-y-5">
+                  <PaletteGrid colors={palette} onColorClick={setColor} />
+                  <div className="pt-3 border-t">
+                    <ExportMenu colors={palette} />
+                  </div>
+                </div>
+              ) : (
+                <div className="py-8 text-center text-muted-foreground text-xs">
+                  <Palette className="h-8 w-8 mx-auto mb-2 opacity-20" />
+                  <p>Generate a harmony palette from the current color</p>
+                </div>
+              )}
+            </CardContent>
+          </Card>
+        </div>
+      </div>
+
+      {/* Row 3: Gradient Generator */}
+      <div className="grid grid-cols-1 lg:grid-cols-3 gap-6 items-stretch">
+        {/* Gradient Controls */}
+        <div className="lg:col-span-1">
+          <Card className="h-full">
+            <CardHeader>
+              <CardTitle>Gradient</CardTitle>
+            </CardHeader>
+            <CardContent className="space-y-4">
+              <div className="space-y-2">
+                <Label className="text-xs">Color Stops</Label>
+                {stops.map((stop, index) => (
+                  <div key={index} className="flex items-center gap-2">
+                    <Input
+                      type="color"
+                      value={stop}
+                      onChange={(e) => updateStop(index, e.target.value)}
+                      className="w-9 h-9 p-1 shrink-0 cursor-pointer"
+                    />
+                    <Input
+                      type="text"
+                      value={stop}
+                      onChange={(e) => updateStop(index, e.target.value)}
+                      className="font-mono text-xs flex-1"
+                    />
+                    {index !== 0 && stops.length > 2 && (
+                      <Button
+                        variant="ghost"
+                        size="icon-xs"
+                        onClick={() => removeStop(index)}
+                      >
+                        <X className="h-3.5 w-3.5" />
+                      </Button>
+                    )}
+                  </div>
+                ))}
+                <Button onClick={addStop} variant="outline" className="w-full">
+                  <Plus className="h-3.5 w-3.5 mr-1.5" />
+                  Add Stop
+                </Button>
+              </div>
+
+              <div className="space-y-2">
+                <Label className="text-xs">Steps</Label>
+                <Input
+                  type="number"
+                  min={2}
+                  max={100}
+                  value={gradientCount}
+                  onChange={(e) => setGradientCount(parseInt(e.target.value))}
+                />
+              </div>
+
+              <Button
+                onClick={generateGradient}
+                disabled={gradientMutation.isPending}
+                className="w-full"
+              >
+                {gradientMutation.isPending ? (
+                  <>
+                    <Loader2 className="h-3.5 w-3.5 mr-1.5 animate-spin" />
+                    Generating...
+                  </>
+                ) : (
+                  'Generate'
+                )}
+              </Button>
+            </CardContent>
+          </Card>
+        </div>
+
+        {/* Gradient Results */}
+        <div className="lg:col-span-2">
+          <Card className="h-full">
+            <CardHeader>
+              <CardTitle>
+                Gradient {gradientResult.length > 0 && <span className="text-muted-foreground font-normal text-sm ml-1">({gradientResult.length})</span>}
+              </CardTitle>
+            </CardHeader>
+            <CardContent>
+              {gradientResult.length > 0 ? (
+                <div className="space-y-5">
+                  <div
+                    className="h-16 w-full rounded-lg border"
+                    style={{
+                      background: `linear-gradient(to right, ${gradientResult.join(', ')})`,
+                    }}
+                  />
+                  <PaletteGrid colors={gradientResult} onColorClick={setColor} />
+                  <div className="pt-3 border-t">
+                    <ExportMenu colors={gradientResult} />
+                  </div>
+                </div>
+              ) : (
+                <div className="py-8 text-center text-muted-foreground text-xs">
+                  <Layers className="h-8 w-8 mx-auto mb-2 opacity-20" />
+                  <p>Add color stops and generate a smooth gradient</p>
+                </div>
+              )}
+            </CardContent>
+          </Card>
+        </div>
+      </div>
+    </div>
+  );
+}
+
+export function ColorManipulation() {
+  return (
+    <Suspense fallback={
+      <div className="flex items-center justify-center py-12">
+        <Loader2 className="h-8 w-8 animate-spin text-muted-foreground" />
+      </div>
+    }>
+      <ColorManipulationContent />
+    </Suspense>
+  );
+}

components/color/ColorPage.tsx

@@ -1,391 +0,0 @@
-'use client';
-
-import { useState, useEffect, Suspense } from 'react';
-import { useSearchParams, useRouter } from 'next/navigation';
-import { ColorPicker } from '@/components/color/ColorPicker';
-import { ColorInfo } from '@/components/color/ColorInfo';
-import { ManipulationPanel } from '@/components/color/ManipulationPanel';
-import { PaletteGrid } from '@/components/color/PaletteGrid';
-import { ExportMenu } from '@/components/color/ExportMenu';
-import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
-import { AppPage } from '@/components/layout/AppPage';
-import { useColorInfo, useGeneratePalette, useGenerateGradient } from '@/lib/color/api/queries';
-import { Loader2, Share2, Palette, Plus, X, Layers } from 'lucide-react';
-import { Button } from '@/components/ui/button';
-import { Input } from '@/components/ui/input';
-import { Label } from '@/components/ui/label';
-import {
-  Select,
-  SelectContent,
-  SelectItem,
-  SelectTrigger,
-  SelectValue,
-} from '@/components/ui/select';
-import { toast } from 'sonner';
-import { getToolByHref } from '@/lib/tools';
-
-const tool = getToolByHref('/color')!;
-
-type HarmonyType =
-  | 'monochromatic'
-  | 'analogous'
-  | 'complementary'
-  | 'triadic'
-  | 'tetradic';
-
-function PlaygroundContent() {
-  const searchParams = useSearchParams();
-  const router = useRouter();
-  const [color, setColor] = useState(() => {
-    // Initialize from URL if available
-    const urlColor = searchParams.get('color');
-    return urlColor ? `#${urlColor.replace('#', '')}` : '#ff0099';
-  });
-
-  // Harmony state
-  const [harmonyType, setHarmonyType] = useState<HarmonyType>('complementary');
-  const [palette, setPalette] = useState<string[]>([]);
-  const paletteMutation = useGeneratePalette();
-
-  // Gradient state
-  const [stops, setStops] = useState<string[]>(['#ff0099', '#0099ff']);
-  const [gradientCount, setGradientCount] = useState(10);
-  const [gradientResult, setGradientResult] = useState<string[]>([]);
-  const gradientMutation = useGenerateGradient();
-
-  const { data, isLoading, isError, error } = useColorInfo({
-    colors: [color],
-  });
-
-  const colorInfo = data?.colors[0];
-
-  // Update URL when color changes
-  useEffect(() => {
-    const hex = color.replace('#', '');
-    if (hex.length === 6 || hex.length === 3) {
-      router.push(`/color?color=${hex}`, { scroll: false });
-    }
-  }, [color, router]);
-
-  // Sync first gradient stop with active color
-  useEffect(() => {
-    const newStops = [...stops];
-    newStops[0] = color;
-    setStops(newStops);
-  }, [color]);
-
-  // Share color via URL
-  const handleShare = () => {
-    const url = `${window.location.origin}/color?color=${color.replace('#', '')}`;
-    navigator.clipboard.writeText(url);
-    toast.success('Link copied to clipboard!');
-  };
-
-  const generateHarmony = async () => {
-    try {
-      const result = await paletteMutation.mutateAsync({
-        base: color,
-        scheme: harmonyType,
-      });
-
-      const colors = [result.palette.primary, ...result.palette.secondary];
-      setPalette(colors);
-      toast.success(`Generated ${harmonyType} harmony palette`);
-    } catch (error) {
-      toast.error('Failed to generate harmony palette');
-      console.error(error);
-    }
-  };
-
-  const generateGradient = async () => {
-    try {
-      const result = await gradientMutation.mutateAsync({
-        stops,
-        count: gradientCount,
-      });
-      setGradientResult(result.gradient);
-      toast.success(`Generated ${result.gradient.length} colors`);
-    } catch (error) {
-      toast.error('Failed to generate gradient');
-    }
-  };
-
-  const addStop = () => {
-    setStops([...stops, '#000000']);
-  };
-
-  const removeStop = (index: number) => {
-    if (index === 0) return; // Prevent deleting the first stop (synchronized with picker)
-    if (stops.length > 2) {
-      setStops(stops.filter((_, i) => i !== index));
-    }
-  };
-
-  const updateStop = (index: number, colorValue: string) => {
-    const newStops = [...stops];
-    newStops[index] = colorValue;
-    setStops(newStops);
-    if (index === 0) setColor(colorValue);
-  };
-
-  const harmonyDescriptions: Record<HarmonyType, string> = {
-    monochromatic: 'Single color with variations',
-    analogous: 'Colors adjacent on the color wheel (±30°)',
-    complementary: 'Colors opposite on the color wheel (180°)',
-    triadic: 'Three colors evenly spaced on the color wheel (120°)',
-    tetradic: 'Four colors evenly spaced on the color wheel (90°)',
-  };
-
-  return (
-    <AppPage
-      title={tool.title}
-      description={tool.description}
-    >
-      <div className="space-y-6">
-        {/* Row 1: Workspace */}
-        <div className="grid grid-cols-1 lg:grid-cols-3 gap-6 items-stretch">
-          {/* Main Workspace: Color Picker and Information */}
-          <div className="lg:col-span-2">
-            <Card className="h-full">
-              <CardHeader className="flex flex-row items-center justify-between space-y-0">
-                <CardTitle>Color Picker</CardTitle>
-                <Button onClick={handleShare} variant="outline" size="xs">
-                  <Share2 className="h-3 w-3 mr-1" />
-                  Share
-                </Button>
-              </CardHeader>
-              <CardContent>
-                <div className="flex flex-col md:flex-row gap-8">
-                  <div className="flex-shrink-0 mx-auto md:mx-0">
-                    <ColorPicker color={color} onChange={setColor} />
-                  </div>
-
-                  <div className="flex-1 min-w-0">
-                    {isLoading && (
-                      <div className="flex items-center justify-center py-12">
-                        <Loader2 className="h-6 w-6 animate-spin text-muted-foreground" />
-                      </div>
-                    )}
-
-                    {isError && (
-                      <div className="p-3 bg-destructive/10 text-destructive rounded-lg text-sm">
-                        <p className="font-medium">Error loading color information</p>
-                        <p className="mt-1">{error?.message || 'Unknown error'}</p>
-                      </div>
-                    )}
-
-                    {colorInfo && <ColorInfo info={colorInfo} />}
-                  </div>
-                </div>
-              </CardContent>
-            </Card>
-          </div>
-
-          {/* Sidebar: Color Manipulation */}
-          <div className="lg:col-span-1">
-            <Card className="h-full">
-              <CardHeader>
-                <CardTitle>Adjustments</CardTitle>
-              </CardHeader>
-              <CardContent>
-                <ManipulationPanel color={color} onColorChange={setColor} />
-              </CardContent>
-            </Card>
-          </div>
-        </div>
-
-        {/* Row 2: Harmony Generator */}
-        <div className="grid grid-cols-1 lg:grid-cols-3 gap-6 items-stretch">
-          {/* Harmony Controls */}
-          <div className="lg:col-span-1">
-            <Card className="h-full">
-              <CardHeader>
-                <CardTitle>Harmony</CardTitle>
-              </CardHeader>
-              <CardContent className="space-y-4">
-                <Select
-                  value={harmonyType}
-                  onValueChange={(value) => setHarmonyType(value as HarmonyType)}
-                >
-                  <SelectTrigger className="w-full">
-                    <SelectValue placeholder="Select harmony" />
-                  </SelectTrigger>
-                  <SelectContent>
-                    <SelectItem value="monochromatic">Monochromatic</SelectItem>
-                    <SelectItem value="analogous">Analogous</SelectItem>
-                    <SelectItem value="complementary">Complementary</SelectItem>
-                    <SelectItem value="triadic">Triadic</SelectItem>
-                    <SelectItem value="tetradic">Tetradic (Square)</SelectItem>
-                  </SelectContent>
-                </Select>
-
-                <p className="text-xs text-muted-foreground">
-                  {harmonyDescriptions[harmonyType]}
-                </p>
-
-                <Button
-                  onClick={generateHarmony}
-                  disabled={paletteMutation.isPending}
-                  className="w-full"
-                >
-                  {paletteMutation.isPending ? (
-                    <>
-                      <Loader2 className="h-3.5 w-3.5 mr-1.5 animate-spin" />
-                      Generating...
-                    </>
-                  ) : (
-                    'Generate'
-                  )}
-                </Button>
-              </CardContent>
-            </Card>
-          </div>
-
-          {/* Harmony Results */}
-          <div className="lg:col-span-2">
-            <Card className="h-full">
-              <CardHeader>
-                <CardTitle>
-                  Palette {palette.length > 0 && <span className="text-muted-foreground font-normal text-sm ml-1">({palette.length})</span>}
-                </CardTitle>
-              </CardHeader>
-              <CardContent>
-                {palette.length > 0 ? (
-                  <div className="space-y-5">
-                    <PaletteGrid colors={palette} onColorClick={setColor} />
-                    <div className="pt-3 border-t">
-                      <ExportMenu colors={palette} />
-                    </div>
-                  </div>
-                ) : (
-                  <div className="py-8 text-center text-muted-foreground text-xs">
-                    <Palette className="h-8 w-8 mx-auto mb-2 opacity-20" />
-                    <p>Generate a harmony palette from the current color</p>
-                  </div>
-                )}
-              </CardContent>
-            </Card>
-          </div>
-        </div>
-
-        {/* Row 3: Gradient Generator */}
-        <div className="grid grid-cols-1 lg:grid-cols-3 gap-6 items-stretch">
-          {/* Gradient Controls */}
-          <div className="lg:col-span-1">
-            <Card className="h-full">
-              <CardHeader>
-                <CardTitle>Gradient</CardTitle>
-              </CardHeader>
-              <CardContent className="space-y-4">
-                <div className="space-y-2">
-                  <Label className="text-xs">Color Stops</Label>
-                  {stops.map((stop, index) => (
-                    <div key={index} className="flex items-center gap-2">
-                      <Input
-                        type="color"
-                        value={stop}
-                        onChange={(e) => updateStop(index, e.target.value)}
-                        className="w-9 h-9 p-1 shrink-0 cursor-pointer"
-                      />
-                      <Input
-                        type="text"
-                        value={stop}
-                        onChange={(e) => updateStop(index, e.target.value)}
-                        className="font-mono text-xs flex-1"
-                      />
-                      {index !== 0 && stops.length > 2 && (
-                        <Button
-                          variant="ghost"
-                          size="icon-xs"
-                          onClick={() => removeStop(index)}
-                        >
-                          <X className="h-3.5 w-3.5" />
-                        </Button>
-                      )}
-                    </div>
-                  ))}
-                  <Button onClick={addStop} variant="outline" className="w-full">
-                    <Plus className="h-3.5 w-3.5 mr-1.5" />
-                    Add Stop
-                  </Button>
-                </div>
-
-                <div className="space-y-2">
-                  <Label className="text-xs">Steps</Label>
-                  <Input
-                    type="number"
-                    min={2}
-                    max={100}
-                    value={gradientCount}
-                    onChange={(e) => setGradientCount(parseInt(e.target.value))}
-                  />
-                </div>
-
-                <Button
-                  onClick={generateGradient}
-                  disabled={gradientMutation.isPending}
-                  className="w-full"
-                >
-                  {gradientMutation.isPending ? (
-                    <>
-                      <Loader2 className="h-3.5 w-3.5 mr-1.5 animate-spin" />
-                      Generating...
-                    </>
-                  ) : (
-                    'Generate'
-                  )}
-                </Button>
-              </CardContent>
-            </Card>
-          </div>
-
-          {/* Gradient Results */}
-          <div className="lg:col-span-2">
-            <Card className="h-full">
-              <CardHeader>
-                <CardTitle>
-                  Gradient {gradientResult.length > 0 && <span className="text-muted-foreground font-normal text-sm ml-1">({gradientResult.length})</span>}
-                </CardTitle>
-              </CardHeader>
-              <CardContent>
-                {gradientResult.length > 0 ? (
-                  <div className="space-y-5">
-                    <div
-                      className="h-16 w-full rounded-lg border"
-                      style={{
-                        background: `linear-gradient(to right, ${gradientResult.join(', ')})`,
-                      }}
-                    />
-                    <PaletteGrid colors={gradientResult} onColorClick={setColor} />
-                    <div className="pt-3 border-t">
-                      <ExportMenu colors={gradientResult} />
-                    </div>
-                  </div>
-                ) : (
-                  <div className="py-8 text-center text-muted-foreground text-xs">
-                    <Layers className="h-8 w-8 mx-auto mb-2 opacity-20" />
-                    <p>Add color stops and generate a smooth gradient</p>
-                  </div>
-                )}
-              </CardContent>
-            </Card>
-          </div>
-        </div>
-      </div>
-    </AppPage>
-  );
-}
-
-export function ColorPage() {
-  return (
-    <Suspense fallback={
-      <div className="min-h-screen py-12">
-        <div className="max-w-7xl mx-auto px-8 flex items-center justify-center">
-          <Loader2 className="h-8 w-8 animate-spin text-muted-foreground" />
-        </div>
-      </div>
-    }>
-      <PlaygroundContent />
-    </Suspense>
-  );
-}

components/layout/AppPage.tsx

@@ -1,23 +1,15 @@
-'use client';
-
 import * as React from 'react';
-import { usePathname } from 'next/navigation';
 import { cn } from '@/lib/utils';
-import { getToolByHref } from '@/lib/tools';
 
 interface AppPageProps {
   title: string;
   description?: string;
+  icon?: React.ElementType;
   children: React.ReactNode;
   className?: string;
 }
 
-export function AppPage({ title, description, children, className }: AppPageProps) {
+export function AppPage({ title, description, icon: Icon, children, className }: AppPageProps) {
-  const pathname = usePathname();
-  const firstSegment = pathname.split('/').filter(Boolean)[0];
-  const tool = getToolByHref(`/${firstSegment ?? ''}`);
-  const Icon = tool?.icon;
-
   return (
     <div className={cn("min-h-screen py-8", className)}>
       <div className="max-w-7xl mx-auto px-8 space-y-6 animate-fade-in">

lib/tools.tsx

@@ -25,7 +25,7 @@ export const tools: Tool[] = [
     title: 'Color Manipulation',
     navTitle: 'Color Manipulation',
     href: '/color',
-    description: 'Interactive color manipulation and analysis tool',
+    description: 'Interactive color manipulation and analysis tool.',
     summary:
       'Modern color manipulation toolkit with palette generation, accessibility testing, and format conversion. Supports hex, RGB, HSL, Lab, and more.',
     icon: ColorIcon,
@@ -36,7 +36,7 @@ export const tools: Tool[] = [
     title: 'Units Converter',
     navTitle: 'Units Converter',
     href: '/units',
-    description: 'Smart unit converter with 187 units across 23 categories',
+    description: 'Smart unit converter with 187 units across 23 categories.',
     summary:
       'Smart unit converter with 187 units across 23 categories. Real-time bidirectional conversion with fuzzy search.',
     icon: UnitsIcon,
@@ -47,7 +47,7 @@ export const tools: Tool[] = [
     title: 'ASCII Art Generator',
     navTitle: 'ASCII Art',
     href: '/ascii',
-    description: 'ASCII Art Text Generator with 373 Fonts',
+    description: 'ASCII Art Text Generator with 373 Fonts.',
     summary:
       'ASCII art text generator with 373 fonts. Create stunning text banners, terminal art, and retro designs with live preview and multiple export formats.',
     icon: ASCIIIcon,
@@ -58,7 +58,7 @@ export const tools: Tool[] = [
     title: 'Media Converter',
     navTitle: 'Media Converter',
     href: '/media',
-    description: 'Professional browser-based media conversion for video, audio, and images',
+    description: 'Browser-based media conversion for video, audio, and images.',
     summary:
       'Modern browser-based file converter powered by WebAssembly. Convert videos, images, and audio locally without server uploads. Privacy-first with no file size limits.',
     icon: MediaIcon,
@@ -69,7 +69,7 @@ export const tools: Tool[] = [
     title: 'Favicon Generator',
     navTitle: 'Favicon Generator',
     href: '/favicon',
-    description: 'Create a complete set of icons for your website including PWA manifest and HTML code.',
+    description: 'Create a complete set of icons for your website.',
     summary:
       'Generate a complete set of favicons for your website. Includes PWA manifest and HTML embed code. All processing happens locally in your browser.',
     icon: FaviconIcon,
@@ -80,7 +80,7 @@ export const tools: Tool[] = [
     title: 'QR Code Generator',
     navTitle: 'QR Code Generator',
     href: '/qrcode',
-    description: 'Generate QR codes with custom colors, error correction, and multi-format export.',
+    description: 'Generate QR codes with custom colors and error correction.',
     summary:
       'Generate QR codes with live preview, customizable colors, error correction levels, and export as PNG or SVG. All processing happens locally in your browser.',
     icon: QRCodeIcon,