refactor: refactor color tool to match calculate blueprint

Rewrites all color components to use the glass panel design language,
fixed-height two-panel layout, and tab-based navigation.

- ColorManipulation: lg:grid-cols-5 split — left 2/5 shows ColorPicker
  + ColorInfo always; right 3/5 has Info/Adjust/Harmony/Gradient tabs;
  mobile 'Pick | Explore' switcher
- ColorPicker: removes shadcn Input/Label, native input with dynamic
  contrast color matching the picked hue
- ColorInfo: removes shadcn Button, native copy buttons on hover,
  metadata chips with bg-primary/5 background
- ManipulationPanel: keeps Slider, replaces Button with glass action
  buttons, tighter spacing and muted labels
- ExportMenu: keeps Select, replaces Buttons with glass action buttons,
  code preview in dark terminal box (#06060e)
- ColorSwatch: rectangular full-width design for palette grids,
  hover reveals copy icon, hex label at bottom
- PaletteGrid: denser grid (4→5 cols), smaller swatch height

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

components/color/ColorInfo.tsx

@@ -1,7 +1,6 @@
 'use client';
 
 import { ColorInfo as ColorInfoType } from '@/lib/color/api/types';
-import { Button } from '@/components/ui/button';
 import { Copy } from 'lucide-react';
 import { toast } from 'sonner';
 import { cn } from '@/lib/utils/cn';
@@ -12,79 +11,70 @@ interface ColorInfoProps {
 }
 
 export function ColorInfo({ info, className }: ColorInfoProps) {
-  const copyToClipboard = (value: string, label: string) => {
+  const copy = (value: string, label: string) => {
     navigator.clipboard.writeText(value);
-    toast.success(`Copied ${label} to clipboard`);
+    toast.success(`Copied ${label}`);
   };
 
-  const formatRgb = (rgb: { r: number; g: number; b: number; a?: number }) => {
+  const formatRgb = (rgb: { r: number; g: number; b: number; a?: number }) =>
-    if (rgb.a !== undefined && rgb.a < 1) {
+    rgb.a !== undefined && rgb.a < 1
-      return `rgba(${rgb.r}, ${rgb.g}, ${rgb.b}, ${rgb.a})`;
+      ? `rgba(${rgb.r}, ${rgb.g}, ${rgb.b}, ${rgb.a})`
-    }
+      : `rgb(${rgb.r}, ${rgb.g}, ${rgb.b})`;
-    return `rgb(${rgb.r}, ${rgb.g}, ${rgb.b})`;
-  };
 
-  const formatHsl = (hsl: { h: number; s: number; l: number; a?: number }) => {
+  const formatHsl = (hsl: { h: number; s: number; l: number; a?: number }) =>
-    if (hsl.a !== undefined && hsl.a < 1) {
+    hsl.a !== undefined && hsl.a < 1
-      return `hsla(${Math.round(hsl.h)}°, ${Math.round(hsl.s * 100)}%, ${Math.round(hsl.l * 100)}%, ${hsl.a})`;
+      ? `hsla(${Math.round(hsl.h)}°, ${Math.round(hsl.s * 100)}%, ${Math.round(hsl.l * 100)}%, ${hsl.a})`
-    }
+      : `hsl(${Math.round(hsl.h)}°, ${Math.round(hsl.s * 100)}%, ${Math.round(hsl.l * 100)}%)`;
-    return `hsl(${Math.round(hsl.h)}°, ${Math.round(hsl.s * 100)}%, ${Math.round(hsl.l * 100)}%)`;
-  };
-
-  const formatLab = (lab: { l: number; a: number; b: number }) => {
-    return `lab(${lab.l.toFixed(1)} ${lab.a.toFixed(1)} ${lab.b.toFixed(1)})`;
-  };
-
-  const formatOkLab = (oklab: { l: number; a: number; b: number }) => {
-    return `oklab(${(oklab.l * 100).toFixed(1)}% ${oklab.a.toFixed(3)} ${oklab.b.toFixed(3)})`;
-  };
 
   const formats = [
-    { label: 'Hex', value: info.hex },
+    { label: 'HEX', value: info.hex },
     { label: 'RGB', value: formatRgb(info.rgb) },
     { label: 'HSL', value: formatHsl(info.hsl) },
-    { label: 'Lab', value: formatLab(info.lab) },
+    { label: 'Lab', value: `lab(${info.lab.l.toFixed(1)} ${info.lab.a.toFixed(1)} ${info.lab.b.toFixed(1)})` },
-    { label: 'OkLab', value: formatOkLab(info.oklab) },
+    { label: 'OkLab', value: `oklab(${(info.oklab.l * 100).toFixed(1)}% ${info.oklab.a.toFixed(3)} ${info.oklab.b.toFixed(3)})` },
   ];
 
   return (
     <div className={cn('space-y-3', className)}>
-      <div className="grid grid-cols-1 gap-1.5">
+      {/* Format rows */}
-        {formats.map((format) => (
+      <div className="space-y-1">
+        {formats.map((fmt) => (
           <div
-            key={format.label}
+            key={fmt.label}
-            className="flex items-center justify-between px-3 py-2 bg-muted/50 rounded-md group"
+            className="group flex items-center justify-between px-2.5 py-1.5 rounded-lg border border-transparent hover:border-border/30 hover:bg-primary/5 transition-all"
           >
             <div className="flex items-baseline gap-2 min-w-0 flex-1">
-              <span className="text-[10px] uppercase tracking-wider text-muted-foreground w-10 shrink-0">{format.label}</span>
+              <span className="text-[10px] font-semibold text-muted-foreground/50 uppercase tracking-widest w-9 shrink-0">
-              <span className="font-mono text-xs truncate">{format.value}</span>
+                {fmt.label}
+              </span>
+              <span className="font-mono text-xs text-foreground/80 truncate">{fmt.value}</span>
             </div>
-            <Button
+            <button
-              size="icon-xs"
+              onClick={() => copy(fmt.value, fmt.label)}
-              variant="ghost"
+              aria-label={`Copy ${fmt.label}`}
-              onClick={() => copyToClipboard(format.value, format.label)}
+              className="shrink-0 ml-2 p-1 rounded text-muted-foreground/30 hover:text-primary opacity-0 group-hover:opacity-100 transition-all"
-              aria-label={`Copy ${format.label} value`}
-              className="opacity-0 group-hover:opacity-100 transition-opacity"
             >
-              <Copy className="h-3 w-3" />
+              <Copy className="w-3 h-3" />
-            </Button>
+            </button>
           </div>
         ))}
       </div>
 
-      <div className="grid grid-cols-3 gap-3 pt-2 border-t text-xs">
+      {/* Metadata row */}
-        <div>
+      <div className="grid grid-cols-3 gap-2 pt-2 border-t border-border/25">
-          <div className="text-muted-foreground mb-0.5">Brightness</div>
+        {[
-          <div className="font-medium">{(info.brightness * 100).toFixed(1)}%</div>
+          { label: 'Brightness', value: `${(info.brightness * 100).toFixed(1)}%` },
-        </div>
+          { label: 'Luminance', value: `${(info.luminance * 100).toFixed(1)}%` },
-        <div>
+          {
-          <div className="text-muted-foreground mb-0.5">Luminance</div>
+            label: info.name && typeof info.name === 'string' ? 'Name' : 'Type',
-          <div className="font-medium">{(info.luminance * 100).toFixed(1)}%</div>
+            value: info.name && typeof info.name === 'string' ? info.name : (info.is_light ? 'Light' : 'Dark'),
-        </div>
+          },
-        <div>
+        ].map((m) => (
-          <div className="text-muted-foreground mb-0.5">{info.name && typeof info.name === 'string' ? 'Name' : 'Type'}</div>
+          <div key={m.label} className="px-2.5 py-2 rounded-lg bg-primary/5 border border-border/20">
-          <div className="font-medium">{info.name && typeof info.name === 'string' ? info.name : (info.is_light ? 'Light' : 'Dark')}</div>
+            <div className="text-[10px] text-muted-foreground/40 font-mono mb-0.5">{m.label}</div>
+            <div className="text-xs font-mono font-medium text-foreground/75 truncate">{m.value}</div>
           </div>
+        ))}
       </div>
     </div>
   );

components/color/ColorManipulation.tsx

@@ -7,27 +7,32 @@ 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 { Loader2, Share2, Plus, X, Palette, 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 { cn } from '@/lib/utils';
 
-type HarmonyType =
+type HarmonyType = 'monochromatic' | 'analogous' | 'complementary' | 'triadic' | 'tetradic';
-  | 'monochromatic'
+type RightTab = 'info' | 'adjust' | 'harmony' | 'gradient';
-  | 'analogous'
+type MobileTab = 'pick' | 'explore';
-  | 'complementary'
+
-  | 'triadic'
+const HARMONY_OPTS: { value: HarmonyType; label: string; desc: string }[] = [
-  | 'tetradic';
+  { value: 'monochromatic', label: 'Mono', desc: 'Single hue, varied lightness' },
+  { value: 'analogous', label: 'Analogous', desc: 'Adjacent colors ±30°' },
+  { value: 'complementary', label: 'Complement', desc: 'Opposite on wheel 180°' },
+  { value: 'triadic', label: 'Triadic', desc: 'Three equal 120° steps' },
+  { value: 'tetradic', label: 'Tetradic', desc: 'Four equal 90° steps' },
+];
+
+const RIGHT_TABS: { value: RightTab; label: string }[] = [
+  { value: 'info', label: 'Info' },
+  { value: 'adjust', label: 'Adjust' },
+  { value: 'harmony', label: 'Harmony' },
+  { value: 'gradient', label: 'Gradient' },
+];
+
+const actionBtn =
+  'flex items-center gap-1 px-2.5 py-1 text-xs glass rounded-md border border-border/30 text-muted-foreground hover:text-primary hover:border-primary/30 hover:bg-primary/10 transition-all disabled:opacity-40 disabled:cursor-not-allowed';
 
 function ColorManipulationContent() {
   const searchParams = useSearchParams();
@@ -37,24 +42,23 @@ function ColorManipulationContent() {
     return urlColor ? `#${urlColor.replace('#', '')}` : '#ff0099';
   });
 
-  // Harmony state
+  const [rightTab, setRightTab] = useState<RightTab>('info');
+  const [mobileTab, setMobileTab] = useState<MobileTab>('pick');
+
+  // Harmony
   const [harmonyType, setHarmonyType] = useState<HarmonyType>('complementary');
   const [palette, setPalette] = useState<string[]>([]);
   const paletteMutation = useGeneratePalette();
 
-  // Gradient state
+  // Gradient
   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({
+  const { data, isLoading } = useColorInfo({ colors: [color] });
-    colors: [color],
-  });
-
   const colorInfo = data?.colors[0];
 
-  // Update URL when color changes
   useEffect(() => {
     const hex = color.replace('#', '');
     if (hex.length === 6 || hex.length === 3) {
@@ -64,301 +68,289 @@ function ColorManipulationContent() {
 
   // Sync first gradient stop with active color
   useEffect(() => {
-    const newStops = [...stops];
+    setStops((prev) => [color, ...prev.slice(1)]);
-    newStops[0] = color;
-    setStops(newStops);
   }, [color]);
 
   const handleShare = () => {
-    const url = `${window.location.origin}/color?color=${color.replace('#', '')}`;
+    navigator.clipboard.writeText(`${window.location.origin}/color?color=${color.replace('#', '')}`);
-    navigator.clipboard.writeText(url);
+    toast.success('Link copied!');
-    toast.success('Link copied to clipboard!');
   };
 
   const generateHarmony = async () => {
     try {
-      const result = await paletteMutation.mutateAsync({
+      const result = await paletteMutation.mutateAsync({ base: color, scheme: harmonyType });
-        base: color,
+      setPalette([result.palette.primary, ...result.palette.secondary]);
-        scheme: harmonyType,
+      toast.success(`Generated ${harmonyType} palette`);
-      });
+    } catch { toast.error('Failed to generate palette'); }
-
-      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({
+      const result = await gradientMutation.mutateAsync({ stops, count: gradientCount });
-        stops,
-        count: gradientCount,
-      });
       setGradientResult(result.gradient);
       toast.success(`Generated ${result.gradient.length} colors`);
-    } catch (error) {
+    } catch { toast.error('Failed to generate gradient'); }
-      toast.error('Failed to generate gradient');
-    }
   };
 
-  const addStop = () => {
+  const updateStop = (i: number, v: string) => {
-    setStops([...stops, '#000000']);
+    const next = [...stops];
-  };
+    next[i] = v;
-
+    setStops(next);
-  const removeStop = (index: number) => {
+    if (i === 0) setColor(v);
-    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">
+    <div className="flex flex-col gap-4">
-      {/* Row 1: Workspace */}
+
-      <div className="grid grid-cols-1 lg:grid-cols-3 gap-6 items-stretch">
+      {/* ── Mobile tab switcher ────────────────────────────────── */}
-        {/* Main Workspace: Color Picker and Information */}
+      <div className="flex lg:hidden glass rounded-xl p-1 gap-1">
-        <div className="lg:col-span-2">
+        {(['pick', 'explore'] as MobileTab[]).map((t) => (
-          <Card className="h-full">
+          <button
-            <CardHeader className="flex flex-row items-center justify-between space-y-0">
+            key={t}
-              <CardTitle>Color Picker</CardTitle>
+            onClick={() => setMobileTab(t)}
-              <Button onClick={handleShare} variant="outline" size="xs">
+            className={cn(
-                <Share2 className="h-3 w-3 mr-1" />
+              'flex-1 py-2.5 rounded-lg text-sm font-medium capitalize transition-all',
-                Share
+              mobileTab === t
-              </Button>
+                ? 'bg-primary text-primary-foreground shadow-sm'
-            </CardHeader>
+                : 'text-muted-foreground hover:text-foreground'
-            <CardContent>
+            )}
-              <div className="flex flex-col md:flex-row gap-8">
+          >
-                <div className="flex-shrink-0 mx-auto md:mx-0">
+            {t === 'pick' ? 'Pick' : 'Explore'}
+          </button>
+        ))}
+      </div>
+
+      {/* ── Main layout ────────────────────────────────────────── */}
+      <div
+        className="grid grid-cols-1 lg:grid-cols-5 gap-4"
+        style={{ height: 'calc(100svh - 220px)', minHeight: '620px' }}
+      >
+
+        {/* Left panel: Picker + ColorInfo */}
+        <div
+          className={cn(
+            'lg:col-span-2 flex flex-col gap-3 overflow-hidden',
+            mobileTab !== 'pick' && 'hidden lg:flex'
+          )}
+        >
+          {/* Color picker card */}
+          <div className="glass rounded-xl p-4 shrink-0">
+            <div className="flex items-center justify-between mb-3">
+              <span className="text-[10px] font-semibold text-muted-foreground uppercase tracking-widest">
+                Color
+              </span>
+              <button onClick={handleShare} className={actionBtn}>
+                <Share2 className="w-3 h-3" /> Share
+              </button>
+            </div>
             <ColorPicker color={color} onChange={setColor} />
           </div>
 
-                <div className="flex-1 min-w-0">
+          {/* Color info card */}
-                  {isLoading && (
+          <div className="glass rounded-xl p-4 flex flex-col flex-1 min-h-0 overflow-hidden">
-                    <div className="flex items-center justify-center py-12">
+            <span className="text-[10px] font-semibold text-muted-foreground uppercase tracking-widest block mb-3 shrink-0">
-                      <Loader2 className="h-6 w-6 animate-spin text-muted-foreground" />
+              Info
+            </span>
+            <div className="flex-1 min-h-0 overflow-y-auto scrollbar-thin scrollbar-thumb-primary/20 scrollbar-track-transparent">
+              {isLoading ? (
+                <div className="flex justify-center py-8">
+                  <Loader2 className="w-4 w-4 animate-spin text-muted-foreground/40" />
                 </div>
+              ) : colorInfo ? (
+                <ColorInfo info={colorInfo} />
+              ) : null}
+            </div>
+          </div>
+        </div>
+
+        {/* Right panel: tabbed tools */}
+        <div
+          className={cn(
+            'lg:col-span-3 flex flex-col overflow-hidden',
+            mobileTab !== 'explore' && 'hidden lg:flex'
           )}
-
-                  {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">
+          <div className="glass rounded-xl p-4 flex flex-col flex-1 min-h-0 overflow-hidden">
-                  <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">
+            {/* Tab switcher */}
-                {harmonyDescriptions[harmonyType]}
+            <div className="flex glass rounded-lg p-0.5 gap-0.5 mb-4 shrink-0">
+              {RIGHT_TABS.map(({ value, label }) => (
+                <button
+                  key={value}
+                  onClick={() => setRightTab(value)}
+                  className={cn(
+                    'flex-1 py-1.5 rounded-md text-xs font-medium transition-all',
+                    rightTab === value
+                      ? 'bg-primary text-primary-foreground shadow-sm'
+                      : 'text-muted-foreground hover:text-foreground'
+                  )}
+                >
+                  {label}
+                </button>
+              ))}
+            </div>
+
+            {/* Tab content */}
+            <div className="flex-1 min-h-0 overflow-y-auto scrollbar-thin scrollbar-thumb-primary/20 scrollbar-track-transparent pr-0.5">
+
+              {/* ── Info tab ─────────────────────────────── */}
+              {rightTab === 'info' && (
+                <div className="space-y-3">
+                  {/* Large color preview */}
+                  <div
+                    className="w-full rounded-xl border border-white/8 transition-colors duration-300"
+                    style={{ height: '140px', background: color }}
+                  />
+                  {isLoading ? (
+                    <div className="flex justify-center py-6">
+                      <Loader2 className="w-5 h-5 animate-spin text-muted-foreground/40" />
+                    </div>
+                  ) : colorInfo ? (
+                    <ColorInfo info={colorInfo} />
+                  ) : null}
+                </div>
+              )}
+
+              {/* ── Adjust tab ───────────────────────────── */}
+              {rightTab === 'adjust' && (
+                <ManipulationPanel color={color} onColorChange={setColor} />
+              )}
+
+              {/* ── Harmony tab ──────────────────────────── */}
+              {rightTab === 'harmony' && (
+                <div className="space-y-4">
+                  {/* Scheme selector */}
+                  <div className="space-y-2">
+                    <span className="text-[10px] font-semibold text-muted-foreground uppercase tracking-widest">
+                      Scheme
+                    </span>
+                    <div className="flex flex-wrap gap-1.5">
+                      {HARMONY_OPTS.map((opt) => (
+                        <button
+                          key={opt.value}
+                          onClick={() => setHarmonyType(opt.value)}
+                          className={cn(
+                            'px-2.5 py-1 rounded-lg border text-xs font-mono transition-all',
+                            harmonyType === opt.value
+                              ? 'bg-primary/10 border-primary/40 text-primary'
+                              : 'border-border/30 text-muted-foreground hover:border-primary/30 hover:text-foreground'
+                          )}
+                        >
+                          {opt.label}
+                        </button>
+                      ))}
+                    </div>
+                    <p className="text-[10px] text-muted-foreground/50 font-mono">
+                      {HARMONY_OPTS.find((o) => o.value === harmonyType)?.desc}
                     </p>
+                  </div>
 
-              <Button
+                  <button
                     onClick={generateHarmony}
                     disabled={paletteMutation.isPending}
-                className="w-full"
+                    className={cn(actionBtn, 'w-full justify-center py-2')}
                   >
-                {paletteMutation.isPending ? (
+                    {paletteMutation.isPending
-                  <>
+                      ? <><Loader2 className="w-3 h-3 animate-spin" /> Generating…</>
-                    <Loader2 className="h-3.5 w-3.5 mr-1.5 animate-spin" />
+                      : <><Palette className="w-3 h-3" /> Generate Palette</>
-                    Generating...
+                    }
-                  </>
+                  </button>
-                ) : (
-                  'Generate'
-                )}
-              </Button>
-            </CardContent>
-          </Card>
-        </div>
 
-        {/* Harmony Results */}
+                  {palette.length > 0 && (
-        <div className="lg:col-span-2">
+                    <div className="space-y-4">
-          <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">
+                      <div className="border-t border-border/25 pt-4">
                         <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 */}
+              {/* ── Gradient tab ─────────────────────────── */}
-      <div className="grid grid-cols-1 lg:grid-cols-3 gap-6 items-stretch">
+              {rightTab === 'gradient' && (
-        {/* Gradient Controls */}
+                <div className="space-y-4">
-        <div className="lg:col-span-1">
+                  {/* Color stops */}
-          <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>
+                    <span className="text-[10px] font-semibold text-muted-foreground uppercase tracking-widest">
-                {stops.map((stop, index) => (
+                      Stops
-                  <div key={index} className="flex items-center gap-2">
+                    </span>
-                    <Input
+                    {stops.map((stop, i) => (
+                      <div key={i} className="flex items-center gap-2">
+                        <input
                           type="color"
                           value={stop}
-                      onChange={(e) => updateStop(index, e.target.value)}
+                          onChange={(e) => updateStop(i, e.target.value)}
-                      className="w-9 h-9 p-1 shrink-0 cursor-pointer"
+                          className="w-8 h-8 rounded-lg cursor-pointer border border-border/40 bg-transparent shrink-0 p-0.5"
                         />
-                    <Input
+                        <input
                           type="text"
                           value={stop}
-                      onChange={(e) => updateStop(index, e.target.value)}
+                          onChange={(e) => updateStop(i, e.target.value)}
-                      className="font-mono text-xs flex-1"
+                          className="flex-1 bg-transparent border border-border/40 rounded-lg px-2.5 py-1.5 text-xs font-mono outline-none focus:border-primary/50 transition-colors"
                         />
-                    {index !== 0 && stops.length > 2 && (
+                        {i !== 0 && stops.length > 2 && (
-                      <Button
+                          <button
-                        variant="ghost"
+                            onClick={() => setStops(stops.filter((_, idx) => idx !== i))}
-                        size="icon-xs"
+                            className="shrink-0 text-muted-foreground/35 hover:text-destructive transition-colors"
-                        onClick={() => removeStop(index)}
                           >
-                        <X className="h-3.5 w-3.5" />
+                            <X className="w-3.5 h-3.5" />
-                      </Button>
+                          </button>
                         )}
                       </div>
                     ))}
-                <Button onClick={addStop} variant="outline" className="w-full">
+                    <button
-                  <Plus className="h-3.5 w-3.5 mr-1.5" />
+                      onClick={() => setStops([...stops, '#000000'])}
-                  Add Stop
+                      className="w-full py-1.5 rounded-lg border border-dashed border-border/30 text-xs text-muted-foreground/40 hover:text-foreground hover:border-primary/30 transition-all flex items-center justify-center gap-1"
-                </Button>
+                    >
+                      <Plus className="w-3 h-3" /> Add stop
+                    </button>
                   </div>
 
-              <div className="space-y-2">
+                  {/* Steps */}
-                <Label className="text-xs">Steps</Label>
+                  <div className="flex items-center gap-3">
-                <Input
+                    <span className="text-[10px] font-semibold text-muted-foreground uppercase tracking-widest shrink-0">
+                      Steps
+                    </span>
+                    <input
                       type="number"
                       min={2}
                       max={100}
                       value={gradientCount}
                       onChange={(e) => setGradientCount(parseInt(e.target.value))}
+                      className="w-20 bg-transparent border border-border/40 rounded-lg px-2.5 py-1.5 text-xs font-mono text-center outline-none focus:border-primary/50 transition-colors"
                     />
                   </div>
 
-              <Button
+                  <button
                     onClick={generateGradient}
                     disabled={gradientMutation.isPending}
-                className="w-full"
+                    className={cn(actionBtn, 'w-full justify-center py-2')}
                   >
-                {gradientMutation.isPending ? (
+                    {gradientMutation.isPending
-                  <>
+                      ? <><Loader2 className="w-3 h-3 animate-spin" /> Generating…</>
-                    <Loader2 className="h-3.5 w-3.5 mr-1.5 animate-spin" />
+                      : <><Layers className="w-3 h-3" /> Generate Gradient</>
-                    Generating...
+                    }
-                  </>
+                  </button>
-                ) : (
-                  'Generate'
-                )}
-              </Button>
-            </CardContent>
-          </Card>
-        </div>
 
-        {/* Gradient Results */}
+                  {gradientResult.length > 0 && (
-        <div className="lg:col-span-2">
+                    <div className="space-y-4">
-          <Card className="h-full">
+                      {/* Gradient preview bar */}
-            <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"
+                        className="h-12 w-full rounded-xl border border-white/8"
-                    style={{
+                        style={{ background: `linear-gradient(to right, ${gradientResult.join(', ')})` }}
-                      background: `linear-gradient(to right, ${gradientResult.join(', ')})`,
-                    }}
                       />
                       <PaletteGrid colors={gradientResult} onColorClick={setColor} />
-                  <div className="pt-3 border-t">
+                      <div className="border-t border-border/25 pt-4">
                         <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>
       </div>
     </div>
@@ -369,7 +361,7 @@ 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" />
+        <Loader2 className="h-8 w-8 animate-spin text-muted-foreground/40" />
       </div>
     }>
       <ColorManipulationContent />

components/color/ColorPicker.tsx

@@ -1,8 +1,6 @@
 'use client';
 
 import { HexColorPicker } from 'react-colorful';
-import { Input } from '@/components/ui/input';
-import { Label } from '@/components/ui/label';
 import { cn } from '@/lib/utils/cn';
 import { hexToRgb } from '@/lib/color/utils/color';
 
@@ -13,45 +11,23 @@ interface ColorPickerProps {
 }
 
 export function ColorPicker({ color, onChange, className }: ColorPickerProps) {
-  const handleInputChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+  const rgb = hexToRgb(color);
-    const value = e.target.value;
+  const brightness = rgb ? (rgb.r * 299 + rgb.g * 587 + rgb.b * 114) / 1000 : 0;
-    // Allow partial input while typing
+  const textColor = brightness > 128 ? '#000000' : '#ffffff';
-    onChange(value);
+  const borderColor = brightness > 128 ? 'rgba(0,0,0,0.12)' : 'rgba(255,255,255,0.2)';
-  };
-
-  // Determine text color based on background brightness
-  const getContrastColor = (hex: string) => {
-    const rgb = hexToRgb(hex);
-    if (!rgb) return 'inherit';
-    const brightness = (rgb.r * 299 + rgb.g * 587 + rgb.b * 114) / 1000;
-    return brightness > 128 ? '#000000' : '#ffffff';
-  };
-
-  const textColor = getContrastColor(color);
 
   return (
-    <div className={cn('flex flex-col items-center justify-center space-y-3', className)}>
+    <div className={cn('flex flex-col gap-3', className)}>
-      <div className="w-full max-w-[200px] space-y-3">
       <HexColorPicker color={color} onChange={onChange} className="!w-full" />
-        <div className="space-y-1.5">
+      <input
-          <Label htmlFor="color-input" className="text-xs">
-            Hex Value
-          </Label>
-          <Input
-            id="color-input"
         type="text"
         value={color}
-            onChange={handleInputChange}
+        onChange={(e) => onChange(e.target.value)}
         placeholder="#ff0099"
-            className="font-mono text-xs transition-colors duration-200"
+        className="w-full font-mono text-xs rounded-lg px-3 py-2 outline-none transition-colors duration-200 border"
-            style={{
+        style={{ backgroundColor: color, color: textColor, borderColor }}
-              backgroundColor: color,
+        spellCheck={false}
-              color: textColor,
-              borderColor: textColor === '#000000' ? 'rgba(0,0,0,0.1)' : 'rgba(255,255,255,0.2)'
-            }}
       />
     </div>
-      </div>
-    </div>
   );
 }

components/color/ColorSwatch.tsx

@@ -13,54 +13,43 @@ interface ColorSwatchProps {
   className?: string;
 }
 
-export function ColorSwatch({
+export function ColorSwatch({ color, size = 'md', showLabel = true, onClick, className }: ColorSwatchProps) {
-  color,
-  size = 'md',
-  showLabel = true,
-  onClick,
-  className,
-}: ColorSwatchProps) {
   const [copied, setCopied] = useState(false);
 
-  const sizeClasses = {
+  const handleClick = () => {
-    sm: 'h-12 w-12',
+    if (onClick) { onClick(); return; }
-    md: 'h-16 w-16',
-    lg: 'h-24 w-24',
-  };
-
-  const handleCopy = (e: React.MouseEvent) => {
-    e.stopPropagation();
     navigator.clipboard.writeText(color);
     setCopied(true);
     toast.success(`Copied ${color}`);
-    setTimeout(() => setCopied(false), 2000);
+    setTimeout(() => setCopied(false), 1500);
   };
 
   return (
-    <div className={cn('flex flex-col items-center gap-2', className)}>
     <button
+      onClick={handleClick}
+      title={color}
+      aria-label={`Color ${color}`}
       className={cn(
-          'relative rounded-lg ring-2 ring-border transition-all duration-200',
+        'group relative w-full rounded-lg overflow-hidden border border-white/8 transition-all',
-          'hover:scale-110 hover:ring-primary hover:shadow-lg',
+        'hover:scale-[1.04] hover:border-white/20 hover:shadow-lg hover:shadow-black/20',
-          'focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2',
+        size === 'sm' && 'h-10',
-          'group active:scale-95',
+        size === 'md' && 'h-14',
-          sizeClasses[size]
+        size === 'lg' && 'h-20',
+        className
       )}
       style={{ backgroundColor: color }}
-        onClick={onClick || handleCopy}
-        aria-label={`Color ${color}`}
     >
-        <div className="absolute inset-0 flex items-center justify-center opacity-0 group-hover:opacity-100 transition-all duration-200 bg-black/30 rounded-lg backdrop-blur-sm">
+      <div className="absolute inset-0 flex items-center justify-center opacity-0 group-hover:opacity-100 transition-opacity bg-black/25">
-          {copied ? (
+        {copied
-            <Check className="h-5 w-5 text-white animate-scale-in" />
+          ? <Check className="w-3.5 h-3.5 text-white drop-shadow" />
-          ) : (
+          : <Copy className="w-3.5 h-3.5 text-white drop-shadow" />
-            <Copy className="h-5 w-5 text-white" />
+        }
-          )}
       </div>
-      </button>
       {showLabel && (
-        <span className="text-xs font-mono text-muted-foreground">{color}</span>
+        <div className="absolute bottom-0 inset-x-0 px-1 py-0.5 text-[9px] font-mono text-white/70 bg-black/25 truncate text-center leading-tight">
-      )}
+          {color}
         </div>
+      )}
+    </button>
   );
 }

components/color/ExportMenu.tsx

@@ -1,6 +1,6 @@
 'use client';
 
-import { Button } from '@/components/ui/button';
+import { useState, useEffect } from 'react';
 import {
   Select,
   SelectContent,
@@ -8,7 +8,6 @@ import {
   SelectTrigger,
   SelectValue,
 } from '@/components/ui/select';
-import { useState, useEffect } from 'react';
 import { Download, Copy, Check, Loader2 } from 'lucide-react';
 import { toast } from 'sonner';
 import {
@@ -21,6 +20,7 @@ import {
   type ExportColor,
 } from '@/lib/color/utils/export';
 import { colorAPI } from '@/lib/color/api/client';
+import { cn } from '@/lib/utils/cn';
 
 interface ExportMenuProps {
   colors: string[];
@@ -30,6 +30,9 @@ interface ExportMenuProps {
 type ExportFormat = 'css' | 'scss' | 'tailwind' | 'json' | 'javascript';
 type ColorSpace = 'hex' | 'rgb' | 'hsl' | 'lab' | 'oklab' | 'lch' | 'oklch';
 
+const actionBtn =
+  'flex items-center gap-1.5 px-3 py-1.5 text-xs glass rounded-md border border-border/30 text-muted-foreground hover:text-primary hover:border-primary/30 hover:bg-primary/10 transition-all disabled:opacity-40 disabled:cursor-not-allowed';
+
 export function ExportMenu({ colors, className }: ExportMenuProps) {
   const [format, setFormat] = useState<ExportFormat>('css');
   const [colorSpace, setColorSpace] = useState<ColorSpace>('hex');
@@ -39,152 +42,105 @@ export function ExportMenu({ colors, className }: ExportMenuProps) {
 
   useEffect(() => {
     async function convertColors() {
-      if (colorSpace === 'hex') {
+      if (colorSpace === 'hex') { setConvertedColors(colors); return; }
-        setConvertedColors(colors);
-        return;
-      }
-
       setIsConverting(true);
       try {
-        const response = await colorAPI.convertFormat({
+        const response = await colorAPI.convertFormat({ colors, format: colorSpace });
-          colors,
-          format: colorSpace,
-        });
-
         if (response.success) {
-          setConvertedColors(response.data.conversions.map(c => c.output));
+          setConvertedColors(response.data.conversions.map((c) => c.output));
         }
-      } catch (error) {
+      } catch {
-        console.error('Failed to convert colors:', error);
+        toast.error('Failed to convert colors');
-        toast.error('Failed to convert colors to selected space');
       } finally {
         setIsConverting(false);
       }
     }
-
     convertColors();
   }, [colors, colorSpace]);
 
   const exportColors: ExportColor[] = convertedColors.map((value) => ({ value }));
 
-  const getExportContent = (): string => {
+  const getContent = (): string => {
     switch (format) {
-      case 'css':
+      case 'css': return exportAsCSS(exportColors);
-        return exportAsCSS(exportColors);
+      case 'scss': return exportAsSCSS(exportColors);
-      case 'scss':
+      case 'tailwind': return exportAsTailwind(exportColors);
-        return exportAsSCSS(exportColors);
+      case 'json': return exportAsJSON(exportColors);
-      case 'tailwind':
+      case 'javascript': return exportAsJavaScript(exportColors);
-        return exportAsTailwind(exportColors);
-      case 'json':
-        return exportAsJSON(exportColors);
-      case 'javascript':
-        return exportAsJavaScript(exportColors);
     }
   };
 
-  const getFileExtension = (): string => {
+  const getExt = () => ({ css: 'css', scss: 'scss', tailwind: 'js', json: 'json', javascript: 'js' }[format]);
-    switch (format) {
-      case 'css':
-        return 'css';
-      case 'scss':
-        return 'scss';
-      case 'tailwind':
-        return 'js';
-      case 'json':
-        return 'json';
-      case 'javascript':
-        return 'js';
-    }
-  };
 
   const handleCopy = () => {
-    const content = getExportContent();
+    navigator.clipboard.writeText(getContent());
-    navigator.clipboard.writeText(content);
     setCopied(true);
-    toast.success('Copied to clipboard!');
+    toast.success('Copied!');
     setTimeout(() => setCopied(false), 2000);
   };
 
   const handleDownload = () => {
-    const content = getExportContent();
+    downloadAsFile(getContent(), `palette.${getExt()}`, 'text/plain');
-    const extension = getFileExtension();
-    downloadAsFile(content, `palette.${extension}`, 'text/plain');
     toast.success('Downloaded!');
   };
 
-  if (colors.length === 0) {
+  if (colors.length === 0) return null;
-    return null;
-  }
 
   return (
-    <div className={className}>
+    <div className={cn('space-y-3', className)}>
-      <div className="space-y-3">
+      <span className="text-[10px] font-semibold text-muted-foreground uppercase tracking-widest">Export</span>
-        <div className="flex flex-col md:flex-row gap-3">
+
-          <Select
+      {/* Selectors */}
-            value={format}
+      <div className="flex gap-2">
-            onValueChange={(value) => setFormat(value as ExportFormat)}
+        <Select value={format} onValueChange={(v) => setFormat(v as ExportFormat)}>
-          >
+          <SelectTrigger className="flex-1 h-7 text-xs border-border/30 bg-transparent hover:border-primary/30 transition-colors">
-            <SelectTrigger className="w-full md:flex-1">
+            <SelectValue />
-              <SelectValue placeholder="Format" />
           </SelectTrigger>
           <SelectContent>
-              <SelectItem value="css">CSS Variables</SelectItem>
+            <SelectItem value="css">CSS Vars</SelectItem>
-              <SelectItem value="scss">SCSS Variables</SelectItem>
+            <SelectItem value="scss">SCSS</SelectItem>
-              <SelectItem value="tailwind">Tailwind Config</SelectItem>
+            <SelectItem value="tailwind">Tailwind</SelectItem>
             <SelectItem value="json">JSON</SelectItem>
-              <SelectItem value="javascript">JavaScript Array</SelectItem>
+            <SelectItem value="javascript">JS Array</SelectItem>
           </SelectContent>
         </Select>
-
+        <Select value={colorSpace} onValueChange={(v) => setColorSpace(v as ColorSpace)}>
-          <Select
+          <SelectTrigger className="flex-1 h-7 text-xs border-border/30 bg-transparent hover:border-primary/30 transition-colors">
-            value={colorSpace}
+            <SelectValue />
-            onValueChange={(value) => setColorSpace(value as ColorSpace)}
-          >
-            <SelectTrigger className="w-full md:flex-1">
-              <SelectValue placeholder="Space" />
           </SelectTrigger>
           <SelectContent>
-              <SelectItem value="hex">Hex</SelectItem>
+            {['hex', 'rgb', 'hsl', 'lab', 'oklab', 'lch', 'oklch'].map((s) => (
-              <SelectItem value="rgb">RGB</SelectItem>
+              <SelectItem key={s} value={s} className="font-mono text-xs">{s}</SelectItem>
-              <SelectItem value="hsl">HSL</SelectItem>
+            ))}
-              <SelectItem value="lab">Lab</SelectItem>
-              <SelectItem value="oklab">OkLab</SelectItem>
-              <SelectItem value="lch">LCH</SelectItem>
-              <SelectItem value="oklch">OkLCH</SelectItem>
           </SelectContent>
         </Select>
       </div>
 
-        <div className="p-3 bg-muted/50 rounded-lg relative min-h-[80px]">
+      {/* Code preview */}
-          {isConverting ? (
+      <div
-            <div className="absolute inset-0 flex items-center justify-center bg-muted/50 backdrop-blur-sm rounded-lg z-10">
+        className="relative rounded-xl overflow-hidden border border-white/5 min-h-[80px]"
-              <Loader2 className="h-5 w-5 animate-spin text-muted-foreground" />
+        style={{ background: '#06060e' }}
+      >
+        {isConverting && (
+          <div className="absolute inset-0 flex items-center justify-center z-10 bg-black/30">
+            <Loader2 className="h-4 w-4 animate-spin text-muted-foreground" />
           </div>
-          ) : null}
+        )}
-          <pre className="text-[11px] overflow-x-auto leading-relaxed">
+        <pre className="p-3 text-[10px] font-mono text-white/60 overflow-x-auto leading-relaxed">
-            <code>{getExportContent()}</code>
+          <code>{getContent()}</code>
         </pre>
       </div>
 
-        <div className="flex flex-col md:flex-row gap-3">
+      {/* Actions */}
-          <Button onClick={handleCopy} variant="outline" className="w-full md:flex-1" disabled={isConverting}>
+      <div className="flex gap-2">
-            {copied ? (
+        <button onClick={handleCopy} disabled={isConverting} className={cn(actionBtn, 'flex-1 justify-center')}>
-              <>
+          {copied ? <Check className="w-3 h-3" /> : <Copy className="w-3 h-3" />}
-                <Check className="h-3.5 w-3.5 mr-1.5" />
+          {copied ? 'Copied' : 'Copy'}
-                Copied
+        </button>
-              </>
+        <button onClick={handleDownload} disabled={isConverting} className={cn(actionBtn, 'flex-1 justify-center')}>
-            ) : (
+          <Download className="w-3 h-3" />
-              <>
-                <Copy className="h-3.5 w-3.5 mr-1.5" />
-                Copy
-              </>
-            )}
-          </Button>
-          <Button onClick={handleDownload} variant="default" className="w-full md:flex-1" disabled={isConverting}>
-            <Download className="h-3.5 w-3.5 mr-1.5" />
           Download
-          </Button>
+        </button>
-        </div>
       </div>
     </div>
   );

components/color/ManipulationPanel.tsx

@@ -2,34 +2,25 @@
 
 import { useState } from 'react';
 import { Slider } from '@/components/ui/slider';
-import { Button } from '@/components/ui/button';
 import {
   useLighten,
   useDarken,
   useSaturate,
   useDesaturate,
   useRotate,
-  useComplement
+  useComplement,
 } from '@/lib/color/api/queries';
 import { toast } from 'sonner';
 import { Sun, Moon, Droplets, Droplet, RotateCcw, ArrowLeftRight } from 'lucide-react';
+import { cn } from '@/lib/utils/cn';
 
 interface ManipulationPanelProps {
   color: string;
   onColorChange: (color: string) => void;
 }
 
-interface ManipulationRow {
+const actionBtn =
-  label: string;
+  'shrink-0 px-3 py-1 text-[10px] font-mono glass rounded-md border border-border/30 text-muted-foreground hover:text-primary hover:border-primary/30 hover:bg-primary/10 transition-all disabled:opacity-40 disabled:cursor-not-allowed';
-  icon: React.ReactNode;
-  value: number;
-  setValue: (v: number) => void;
-  format: (v: number) => string;
-  min: number;
-  max: number;
-  step: number;
-  onApply: () => Promise<void>;
-}
 
 export function ManipulationPanel({ color, onColorChange }: ManipulationPanelProps) {
   const [lightenAmount, setLightenAmount] = useState(0.2);
@@ -53,150 +44,104 @@ export function ManipulationPanel({ color, onColorChange }: ManipulationPanelPro
     rotateMutation.isPending ||
     complementMutation.isPending;
 
-  const handleMutation = async (
+  const applyMutation = async (
-    mutationFn: (params: any) => Promise<any>,
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    mutationFn: (p: any) => Promise<{ colors: { output: string }[] }>,
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
     params: any,
-    successMsg: string,
+    msg: string
-    errorMsg: string
   ) => {
     try {
       const result = await mutationFn(params);
       if (result.colors[0]) {
         onColorChange(result.colors[0].output);
-        toast.success(successMsg);
+        toast.success(msg);
       }
     } catch {
-      toast.error(errorMsg);
+      toast.error('Failed to apply');
     }
   };
 
-  const rows: ManipulationRow[] = [
+  const rows = [
     {
-      label: 'Lighten',
+      label: 'Lighten', icon: <Sun className="w-3 h-3" />,
-      icon: <Sun className="h-3.5 w-3.5" />,
+      value: lightenAmount, setValue: setLightenAmount,
-      value: lightenAmount,
+      display: `${(lightenAmount * 100).toFixed(0)}%`,
-      setValue: setLightenAmount,
-      format: (v) => `${(v * 100).toFixed(0)}%`,
       min: 0, max: 1, step: 0.05,
-      onApply: () => handleMutation(
+      onApply: () => applyMutation(lightenMutation.mutateAsync, { colors: [color], amount: lightenAmount }, `Lightened ${(lightenAmount * 100).toFixed(0)}%`),
-        lightenMutation.mutateAsync,
-        { colors: [color], amount: lightenAmount },
-        `Lightened by ${(lightenAmount * 100).toFixed(0)}%`,
-        'Failed to lighten color'
-      ),
     },
     {
-      label: 'Darken',
+      label: 'Darken', icon: <Moon className="w-3 h-3" />,
-      icon: <Moon className="h-3.5 w-3.5" />,
+      value: darkenAmount, setValue: setDarkenAmount,
-      value: darkenAmount,
+      display: `${(darkenAmount * 100).toFixed(0)}%`,
-      setValue: setDarkenAmount,
-      format: (v) => `${(v * 100).toFixed(0)}%`,
       min: 0, max: 1, step: 0.05,
-      onApply: () => handleMutation(
+      onApply: () => applyMutation(darkenMutation.mutateAsync, { colors: [color], amount: darkenAmount }, `Darkened ${(darkenAmount * 100).toFixed(0)}%`),
-        darkenMutation.mutateAsync,
-        { colors: [color], amount: darkenAmount },
-        `Darkened by ${(darkenAmount * 100).toFixed(0)}%`,
-        'Failed to darken color'
-      ),
     },
     {
-      label: 'Saturate',
+      label: 'Saturate', icon: <Droplets className="w-3 h-3" />,
-      icon: <Droplets className="h-3.5 w-3.5" />,
+      value: saturateAmount, setValue: setSaturateAmount,
-      value: saturateAmount,
+      display: `${(saturateAmount * 100).toFixed(0)}%`,
-      setValue: setSaturateAmount,
-      format: (v) => `${(v * 100).toFixed(0)}%`,
       min: 0, max: 1, step: 0.05,
-      onApply: () => handleMutation(
+      onApply: () => applyMutation(saturateMutation.mutateAsync, { colors: [color], amount: saturateAmount }, `Saturated ${(saturateAmount * 100).toFixed(0)}%`),
-        saturateMutation.mutateAsync,
-        { colors: [color], amount: saturateAmount },
-        `Saturated by ${(saturateAmount * 100).toFixed(0)}%`,
-        'Failed to saturate color'
-      ),
     },
     {
-      label: 'Desaturate',
+      label: 'Desaturate', icon: <Droplet className="w-3 h-3" />,
-      icon: <Droplet className="h-3.5 w-3.5" />,
+      value: desaturateAmount, setValue: setDesaturateAmount,
-      value: desaturateAmount,
+      display: `${(desaturateAmount * 100).toFixed(0)}%`,
-      setValue: setDesaturateAmount,
-      format: (v) => `${(v * 100).toFixed(0)}%`,
       min: 0, max: 1, step: 0.05,
-      onApply: () => handleMutation(
+      onApply: () => applyMutation(desaturateMutation.mutateAsync, { colors: [color], amount: desaturateAmount }, `Desaturated ${(desaturateAmount * 100).toFixed(0)}%`),
-        desaturateMutation.mutateAsync,
-        { colors: [color], amount: desaturateAmount },
-        `Desaturated by ${(desaturateAmount * 100).toFixed(0)}%`,
-        'Failed to desaturate color'
-      ),
     },
     {
-      label: 'Rotate',
+      label: 'Rotate Hue', icon: <RotateCcw className="w-3 h-3" />,
-      icon: <RotateCcw className="h-3.5 w-3.5" />,
+      value: rotateAmount, setValue: setRotateAmount,
-      value: rotateAmount,
+      display: `${rotateAmount}°`,
-      setValue: setRotateAmount,
-      format: (v) => `${v}°`,
       min: -180, max: 180, step: 5,
-      onApply: () => handleMutation(
+      onApply: () => applyMutation(rotateMutation.mutateAsync, { colors: [color], amount: rotateAmount }, `Rotated ${rotateAmount}°`),
-        rotateMutation.mutateAsync,
-        { colors: [color], amount: rotateAmount },
-        `Rotated hue by ${rotateAmount}°`,
-        'Failed to rotate hue'
-      ),
     },
   ];
 
-  const handleComplement = async () => {
-    try {
-      const result = await complementMutation.mutateAsync([color]);
-      if (result.colors[0]) {
-        onColorChange(result.colors[0].output);
-        toast.success('Generated complementary color');
-      }
-    } catch {
-      toast.error('Failed to generate complement');
-    }
-  };
-
   return (
     <div className="space-y-4">
       {rows.map((row) => (
-        <div key={row.label} className="space-y-2">
+        <div key={row.label} className="space-y-1.5">
           <div className="flex items-center justify-between">
-            <div className="flex items-center gap-1.5 text-xs font-medium">
+            <div className="flex items-center gap-1.5 text-[10px] font-semibold text-muted-foreground uppercase tracking-widest">
               {row.icon}
               <span>{row.label}</span>
             </div>
-            <span className="text-[10px] text-muted-foreground tabular-nums">{row.format(row.value)}</span>
+            <span className="text-[10px] text-muted-foreground/40 font-mono tabular-nums">{row.display}</span>
           </div>
           <div className="flex items-center gap-2">
             <Slider
-              min={row.min}
+              min={row.min} max={row.max} step={row.step}
-              max={row.max}
-              step={row.step}
               value={[row.value]}
               onValueChange={(vals) => row.setValue(vals[0])}
               className="flex-1"
             />
-            <Button
+            <button onClick={row.onApply} disabled={isLoading} className={actionBtn}>
-              onClick={row.onApply}
-              disabled={isLoading}
-              variant="outline"
-              className="shrink-0 w-16"
-            >
               Apply
-            </Button>
+            </button>
           </div>
         </div>
       ))}
 
-      <div className="pt-3 border-t">
+      <div className="pt-3 border-t border-border/25">
-        <Button
+        <button
-          onClick={handleComplement}
+          onClick={async () => {
+            try {
+              const result = await complementMutation.mutateAsync([color]);
+              if (result.colors[0]) {
+                onColorChange(result.colors[0].output);
+                toast.success('Complementary color applied');
+              }
+            } catch { toast.error('Failed'); }
+          }}
           disabled={isLoading}
-          variant="outline"
+          className={cn(actionBtn, 'w-full justify-center flex items-center gap-1.5 py-2')}
-          className="w-full"
         >
-          <ArrowLeftRight className="h-3.5 w-3.5 mr-1.5" />
+          <ArrowLeftRight className="w-3 h-3" />
           Complementary Color
-        </Button>
+        </button>
       </div>
     </div>
   );

components/color/PaletteGrid.tsx

@@ -19,16 +19,12 @@ export function PaletteGrid({ colors, onColorClick, className }: PaletteGridProp
   }
 
   return (
-    <div
+    <div className={cn('grid grid-cols-4 sm:grid-cols-5 gap-2', className)}>
-      className={cn(
-        'grid grid-cols-3 sm:grid-cols-4 md:grid-cols-5 lg:grid-cols-6 gap-4',
-        className
-      )}
-    >
       {colors.map((color, index) => (
         <ColorSwatch
           key={`${color}-${index}`}
           color={color}
+          size="sm"
           onClick={onColorClick ? () => onColorClick(color) : undefined}
         />
       ))}