polish: Priority 2 improvements - smooth scroll, badges, back to top

🎯 Smooth Scroll Behavior:
- Added smooth scroll CSS for seamless navigation
- Scroll indicator now links to #tools section
- Added hover states for scroll indicator
- Accessibility: respects prefers-reduced-motion

🏷️ Tool Badges:
- Added feature badges to each tool card
- Vert: Privacy, Open Source, Free
- Paint: Browser-Based, Free
- Pastel: Open Source, WCAG, Free
- Subtle glassmorphic badge design

⬆️ Back to Top Button:
- Animated button appears after scrolling 300px
- Smooth scroll to top on click
- Hover tooltip with "Back to top" label
- Scale animations on hover/tap
- Progress bar at top showing scroll position
- Gradient progress indicator

♿ Accessibility:
- Added prefers-reduced-motion support
- Proper ARIA labels
- Keyboard accessible
- Smooth animations respect user preferences

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

app/globals.css

@@ -42,6 +42,10 @@
   }
 }
 
+html {
+  scroll-behavior: smooth;
+}
+
 body {
   color: var(--color-foreground);
   background: var(--color-background);
@@ -50,6 +54,20 @@ body {
   -moz-osx-font-smoothing: grayscale;
 }
 
+@media (prefers-reduced-motion: reduce) {
+  html {
+    scroll-behavior: auto;
+  }
+
+  *,
+  *::before,
+  *::after {
+    animation-duration: 0.01ms !important;
+    animation-iteration-count: 1 !important;
+    transition-duration: 0.01ms !important;
+  }
+}
+
 @utility text-balance {
   text-wrap: balance;
 }

app/page.tsx

@@ -3,11 +3,13 @@ import Hero from '@/components/Hero';
 import Stats from '@/components/Stats';
 import ToolsGrid from '@/components/ToolsGrid';
 import Footer from '@/components/Footer';
+import BackToTop from '@/components/BackToTop';
 
 export default function Home() {
   return (
     <main className="relative min-h-screen">
       <AnimatedBackground />
+      <BackToTop />
       <Hero />
       <Stats />
       <ToolsGrid />

components/BackToTop.tsx

@@ -0,0 +1,77 @@
+'use client';
+
+import { motion, useScroll, useSpring } from 'framer-motion';
+import { useState, useEffect } from 'react';
+
+export default function BackToTop() {
+  const [isVisible, setIsVisible] = useState(false);
+  const { scrollYProgress } = useScroll();
+  const scaleX = useSpring(scrollYProgress, {
+    stiffness: 100,
+    damping: 30,
+    restDelta: 0.001,
+  });
+
+  useEffect(() => {
+    const toggleVisibility = () => {
+      if (window.pageYOffset > 300) {
+        setIsVisible(true);
+      } else {
+        setIsVisible(false);
+      }
+    };
+
+    window.addEventListener('scroll', toggleVisibility);
+    return () => window.removeEventListener('scroll', toggleVisibility);
+  }, []);
+
+  const scrollToTop = () => {
+    window.scrollTo({
+      top: 0,
+      behavior: 'smooth',
+    });
+  };
+
+  return (
+    <>
+      {/* Progress bar */}
+      <motion.div
+        className="fixed top-0 left-0 right-0 h-1 bg-gradient-to-r from-purple-500 to-cyan-500 transform origin-left z-50"
+        style={{ scaleX }}
+      />
+
+      {/* Back to top button */}
+      {isVisible && (
+        <motion.button
+          onClick={scrollToTop}
+          className="fixed bottom-8 right-8 p-4 rounded-full glass hover:bg-white/10 text-purple-400 hover:text-purple-300 transition-colors shadow-lg z-40 group"
+          initial={{ opacity: 0, y: 20 }}
+          animate={{ opacity: 1, y: 0 }}
+          exit={{ opacity: 0, y: 20 }}
+          whileHover={{ scale: 1.1 }}
+          whileTap={{ scale: 0.9 }}
+          aria-label="Back to top"
+        >
+          <svg
+            className="w-6 h-6"
+            fill="none"
+            stroke="currentColor"
+            viewBox="0 0 24 24"
+          >
+            <path
+              strokeLinecap="round"
+              strokeLinejoin="round"
+              strokeWidth={2}
+              d="M5 10l7-7m0 0l7 7m-7-7v18"
+            />
+          </svg>
+
+          {/* Tooltip */}
+          <span className="absolute bottom-full right-0 mb-2 px-3 py-1 text-xs text-white bg-gray-900 rounded-lg opacity-0 group-hover:opacity-100 transition-opacity whitespace-nowrap">
+            Back to top
+          </span>
+        </motion.button>
+      )}
+    </>
+  );
+}

components/Hero.tsx

@@ -49,21 +49,22 @@ export default function Hero() {
         </motion.p>
 
         {/* Scroll indicator */}
-        <motion.div
+        <motion.a
-          className="flex flex-col items-center gap-2"
+          href="#tools"
+          className="flex flex-col items-center gap-2 cursor-pointer group"
           initial={{ opacity: 0 }}
           animate={{ opacity: 1 }}
           transition={{ duration: 0.8, delay: 1 }}
         >
-          <span className="text-sm text-gray-500">Explore Tools</span>
+          <span className="text-sm text-gray-500 group-hover:text-gray-400 transition-colors">Explore Tools</span>
           <motion.div
-            className="w-6 h-10 border-2 border-gray-600 rounded-full p-1"
+            className="w-6 h-10 border-2 border-gray-600 group-hover:border-purple-400 rounded-full p-1 transition-colors"
             animate={{ y: [0, 10, 0] }}
             transition={{ duration: 1.5, repeat: Infinity }}
           >
             <div className="w-1 h-2 bg-gradient-to-b from-purple-400 to-cyan-400 rounded-full mx-auto" />
           </motion.div>
-        </motion.div>
+        </motion.a>
       </div>
     </section>
   );

components/ToolCard.tsx

@@ -10,9 +10,10 @@ interface ToolCardProps {
   url: string;
   gradient: string;
   index: number;
+  badges?: string[];
 }
 
-export default function ToolCard({ title, description, icon, url, gradient, index }: ToolCardProps) {
+export default function ToolCard({ title, description, icon, url, gradient, index, badges }: ToolCardProps) {
   return (
     <motion.a
       href={url}
@@ -52,6 +53,20 @@ export default function ToolCard({ title, description, icon, url, gradient, inde
           {title}
         </h3>
 
+        {/* Badges */}
+        {badges && badges.length > 0 && (
+          <div className="flex flex-wrap gap-2 mb-3">
+            {badges.map((badge) => (
+              <span
+                key={badge}
+                className="text-xs px-2 py-1 rounded-full bg-white/5 border border-white/10 text-gray-400"
+              >
+                {badge}
+              </span>
+            ))}
+          </div>
+        )}
+
         {/* Description */}
         <p className="text-gray-400 group-hover:text-gray-300 transition-colors duration-300">
           {description}

components/ToolsGrid.tsx

@@ -9,6 +9,7 @@ const tools = [
     description: 'Privacy-focused file converter that processes images, audio, and documents locally on your device. No file size limits, completely open source.',
     url: 'https://vert.kit.pivoine.art',
     gradient: 'gradient-green-teal',
+    badges: ['Privacy', 'Open Source', 'Free'],
     icon: (
       <svg className="w-12 h-12 text-white" fill="none" stroke="currentColor" viewBox="0 0 24 24">
         <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M4 16l4.586-4.586a2 2 0 012.828 0L16 16m-2-2l1.586-1.586a2 2 0 012.828 0L20 14m-6-6h.01M6 20h12a2 2 0 002-2V6a2 2 0 00-2-2H6a2 2 0 00-2 2v12a2 2 0 002 2z" />
@@ -20,6 +21,7 @@ const tools = [
     description: 'An advanced image editor running in your browser. Edit photos, create graphics, and more.',
     url: 'https://paint.kit.pivoine.art',
     gradient: 'gradient-orange-pink',
+    badges: ['Browser-Based', 'Free'],
     icon: (
       <svg className="w-12 h-12 text-white" fill="none" stroke="currentColor" viewBox="0 0 24 24">
         <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M7 21a4 4 0 01-4-4V5a2 2 0 012-2h4a2 2 0 012 2v12a4 4 0 01-4 4zm0 0h12a2 2 0 002-2v-4a2 2 0 00-2-2h-2.343M11 7.343l1.657-1.657a2 2 0 012.828 0l2.829 2.829a2 2 0 010 2.828l-8.486 8.485M7 17h.01" />
@@ -31,6 +33,7 @@ const tools = [
     description: 'Modern color manipulation toolkit with palette generation, accessibility testing, and format conversion. Supports hex, RGB, HSL, Lab, and more.',
     url: 'https://pastel.kit.pivoine.art',
     gradient: 'gradient-indigo-purple',
+    badges: ['Open Source', 'WCAG', 'Free'],
     icon: (
       <svg className="w-12 h-12 text-white" fill="none" stroke="currentColor" viewBox="0 0 24 24">
         <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M7 21a4 4 0 01-4-4V5a2 2 0 012-2h4a2 2 0 012 2v12a4 4 0 01-4 4zm0 0h12a2 2 0 002-2v-4a2 2 0 00-2-2h-2.343M11 7.343l1.657-1.657a2 2 0 012.828 0l2.829 2.829a2 2 0 010 2.828l-8.486 8.485M7 17h.01" />
@@ -44,7 +47,7 @@ const tools = [
 
 export default function ToolsGrid() {
   return (
-    <section className="relative py-20 px-4">
+    <section id="tools" className="relative py-20 px-4">
       <div className="max-w-6xl mx-auto">
         {/* Section heading */}
         <motion.div
@@ -72,6 +75,7 @@ export default function ToolsGrid() {
               icon={tool.icon}
               url={tool.url}
               gradient={tool.gradient}
+              badges={tool.badges}
               index={index}
             />
           ))}