🎨 Drastic UI Overhaul — CODE-NARRATIVE-AI inspired design

frontend/package.json

@@ -1,6 +1,7 @@
 {
-  "name": "testgenius-frontend",
-  "version": "1.0.0",
+  "name": "testgenius-ai-frontend",
+  "private": true,
+  "version": "2.0.0",
   "type": "module",
   "scripts": {
     "dev": "vite",
@@ -10,9 +11,7 @@
   "dependencies": {
     "react": "^18.3.0",
     "react-dom": "^18.3.0",
-    "react-router-dom": "^6.26.0",
-    "lucide-react": "^0.460.0",
-    "@monaco-editor/react": "^4.6.0"
+    "lucide-react": "^0.460.0"
   },
   "devDependencies": {
     "@types/react": "^18.3.0",

frontend/src/App.tsx

@@ -5,67 +5,28 @@ import { AnalyzePage } from './pages/AnalyzePage';
 import { HistoryPage } from './pages/HistoryPage';
 import { SettingsPage } from './pages/SettingsPage';
 
-// ═══ ERROR BOUNDARY ═══
-function ErrorBoundary({ children }: { children: React.ReactNode }) {
-  const [error, setError] = useState<Error | null>(null);
-
-  useEffect(() => {
-    const handler = (event: ErrorEvent) => {
-      setError(new Error(event.message));
-      event.preventDefault();
-    };
-    window.addEventListener('error', handler);
-    return () => window.removeEventListener('error', handler);
-  }, []);
-
-  if (error) {
-    return (
-      <div className="min-h-screen bg-[#0a0a0f] flex items-center justify-center">
-        <div className="bg-red-500/10 border border-red-500/20 rounded-xl p-8 max-w-md text-center">
-          <div className="text-3xl mb-4">⚠️</div>
-          <h2 className="text-lg font-bold text-white mb-2">Something went wrong</h2>
-          <p className="text-sm text-red-300 mb-4">{error.message}</p>
-          <button onClick={() => { setError(null); window.location.hash = ''; }}
-            className="px-4 py-2 bg-red-500/20 hover:bg-red-500/30 border border-red-500/30 rounded-lg text-sm text-white transition">
-            Try Again
-          </button>
-        </div>
-      </div>
-    );
-  }
-
-  return <>{children}</>;
-}
-
-// ═══ HASH ROUTER ═══
 type Page = 'landing' | 'generate' | 'analyze' | 'history' | 'settings';
 
 function useHashRouter(): [Page, (p: Page) => void] {
   const getPage = (): Page => {
     const hash = window.location.hash.slice(1) || 'landing';
-    if (['landing', 'generate', 'analyze', 'history', 'settings'].includes(hash)) {
-      return hash as Page;
-    }
+    if (['landing', 'generate', 'analyze', 'history', 'settings'].includes(hash)) return hash as Page;
     return 'landing';
   };
-
-  const [page, setPageState] = useState<Page>(getPage());
-
+  const [page, setPage] = useState<Page>(getPage());
   useEffect(() => {
-    const handler = () => setPageState(getPage());
+    const handler = () => setPage(getPage());
     window.addEventListener('hashchange', handler);
     return () => window.removeEventListener('hashchange', handler);
   }, []);
-
   const navigate = (p: Page) => {
     window.location.hash = p === 'landing' ? '' : p;
-    setPageState(p);
+    setPage(p);
+    window.scrollTo(0, 0);
   };
-
   return [page, navigate];
 }
 
-// ═══ NAVIGATION BAR ═══
 function Navbar({ page, onNavigate }: { page: Page; onNavigate: (p: Page) => void }) {
   if (page === 'landing') return null;
 
@@ -79,19 +40,19 @@ function Navbar({ page, onNavigate }: { page: Page; onNavigate: (p: Page) => voi
   return (
     <nav className="sticky top-0 z-50 bg-[#0a0a0f]/80 backdrop-blur-xl border-b border-white/[0.04]">
       <div className="max-w-[1400px] mx-auto px-6 py-3 flex items-center justify-between">
-        <button onClick={() => onNavigate('landing')} className="flex items-center gap-2">
-          <div className="w-7 h-7 rounded-lg bg-gradient-to-br from-emerald-500 to-cyan-500 flex items-center justify-center text-xs font-bold">T</div>
-          <span className="font-bold text-sm">TestGenius<span className="text-emerald-400">.ai</span></span>
+        <button onClick={() => onNavigate('landing')} className="flex items-center gap-2.5 hover:opacity-80 transition">
+          <div className="w-8 h-8 rounded-lg bg-gradient-to-br from-emerald-500 to-cyan-500 flex items-center justify-center text-xs font-black shadow-md shadow-emerald-500/20">T</div>
+          <span className="font-bold text-sm tracking-tight">TestGenius<span className="text-emerald-400">.ai</span></span>
         </button>
         <div className="flex gap-1">
           {links.map(l => (
             <button key={l.id} onClick={() => onNavigate(l.id)}
-              className={`px-3 py-1.5 rounded-lg text-xs font-medium transition-all ${
+              className={`px-3.5 py-2 rounded-lg text-xs font-medium transition-all ${
                 page === l.id
-                  ? 'bg-emerald-500/10 text-emerald-300 border border-emerald-500/20'
-                  : 'text-gray-500 hover:text-gray-300 border border-transparent'
+                  ? 'bg-emerald-500/10 text-emerald-300 border border-emerald-500/20 shadow-sm shadow-emerald-500/5'
+                  : 'text-gray-500 hover:text-gray-300 border border-transparent hover:border-white/[0.06]'
               }`}>
-              <span className="mr-1">{l.icon}</span>{l.label}
+              <span className="mr-1.5">{l.icon}</span>{l.label}
             </button>
           ))}
         </div>
@@ -100,32 +61,44 @@ function Navbar({ page, onNavigate }: { page: Page; onNavigate: (p: Page) => voi
   );
 }
 
-// ═══ LOADING SKELETON ═══
-export function LoadingSkeleton() {
+function ErrorFallback({ error, onReset }: { error: string; onReset: () => void }) {
   return (
-    <div className="animate-pulse space-y-4 p-6">
-      <div className="h-4 bg-white/[0.05] rounded w-1/3"></div>
-      <div className="h-32 bg-white/[0.03] rounded-xl"></div>
-      <div className="h-4 bg-white/[0.05] rounded w-2/3"></div>
-      <div className="h-4 bg-white/[0.05] rounded w-1/2"></div>
+    <div className="min-h-screen bg-[#0a0a0f] flex items-center justify-center p-8">
+      <div className="bg-red-500/5 border border-red-500/20 rounded-2xl p-10 max-w-md text-center">
+        <div className="text-4xl mb-5">⚠️</div>
+        <h2 className="text-lg font-bold text-white mb-2">Something went wrong</h2>
+        <p className="text-sm text-red-300/80 mb-6">{error}</p>
+        <button onClick={onReset}
+          className="px-6 py-2.5 bg-white/[0.05] hover:bg-white/[0.08] border border-white/[0.08] rounded-xl text-sm font-medium transition">
+          Try Again
+        </button>
+      </div>
     </div>
   );
 }
 
-// ═══ MAIN APP ═══
 export default function App() {
   const [page, navigate] = useHashRouter();
+  const [error, setError] = useState<string | null>(null);
+
+  useEffect(() => {
+    const handler = (e: ErrorEvent) => { setError(e.message); e.preventDefault(); };
+    window.addEventListener('error', handler);
+    return () => window.removeEventListener('error', handler);
+  }, []);
+
+  if (error) return <ErrorFallback error={error} onReset={() => { setError(null); navigate('landing'); }} />;
 
   return (
-    <ErrorBoundary>
-      <div className="min-h-screen bg-[#0a0a0f] text-white">
-        <Navbar page={page} onNavigate={navigate} />
+    <div className="min-h-screen bg-[#0a0a0f] text-white">
+      <Navbar page={page} onNavigate={navigate} />
+      <main className="animate-fade-in">
         {page === 'landing' && <LandingPage onNavigate={navigate} />}
         {page === 'generate' && <GeneratePage />}
         {page === 'analyze' && <AnalyzePage />}
         {page === 'history' && <HistoryPage />}
         {page === 'settings' && <SettingsPage />}
-      </div>
-    </ErrorBoundary>
+      </main>
+    </div>
   );
 }

frontend/src/index.css

@@ -2,13 +2,69 @@
 @tailwind components;
 @tailwind utilities;
 
+* {
+  margin: 0;
+  padding: 0;
+  box-sizing: border-box;
+}
+
+html {
+  scroll-behavior: smooth;
+}
+
 body {
   background: #0a0a0f;
-  color: #e4e4e7;
+  color: #ffffff;
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', Roboto, sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+::selection {
+  background: rgba(16, 185, 129, 0.2);
+  color: #ffffff;
+}
+
+::-webkit-scrollbar {
+  width: 6px;
+  height: 6px;
+}
+
+::-webkit-scrollbar-track {
+  background: transparent;
+}
+
+::-webkit-scrollbar-thumb {
+  background: #2a2a3e;
+  border-radius: 3px;
+}
+
+::-webkit-scrollbar-thumb:hover {
+  background: #3a3a5e;
 }
 
-::-webkit-scrollbar { width: 6px; height: 6px; }
-::-webkit-scrollbar-track { background: transparent; }
-::-webkit-scrollbar-thumb { background: #333; border-radius: 3px; }
+/* Code blocks */
+pre {
+  tab-size: 2;
+}
+
+/* Animations */
+@keyframes fadeIn {
+  from { opacity: 0; transform: translateY(8px); }
+  to { opacity: 1; transform: translateY(0); }
+}
 
-select option { background: #1a1a2e; color: #e4e4e7; }
+.animate-fade-in {
+  animation: fadeIn 0.3s ease-out;
+}
+
+@keyframes shimmer {
+  0% { background-position: -200% 0; }
+  100% { background-position: 200% 0; }
+}
+
+.animate-shimmer {
+  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.03), transparent);
+  background-size: 200% 100%;
+  animation: shimmer 2s infinite;
+}

frontend/src/pages/LandingPage.tsx

@@ -1,21 +1,21 @@
-import React, { useEffect, useRef } from 'react';
+import { useEffect, useRef } from 'react';
 
 interface Props { onNavigate: (page: any) => void; }
 
 export function LandingPage({ onNavigate }: Props) {
   const canvasRef = useRef<HTMLCanvasElement>(null);
 
-  // Animated particle background
   useEffect(() => {
     const canvas = canvasRef.current;
     if (!canvas) return;
     const ctx = canvas.getContext('2d')!;
-    canvas.width = window.innerWidth;
-    canvas.height = window.innerHeight;
+    const resize = () => { canvas.width = window.innerWidth; canvas.height = window.innerHeight; };
+    resize();
+    window.addEventListener('resize', resize);
 
     const particles: { x: number; y: number; vx: number; vy: number; r: number; a: number }[] = [];
-    for (let i = 0; i < 60; i++) {
-      particles.push({ x: Math.random() * canvas.width, y: Math.random() * canvas.height, vx: (Math.random() - 0.5) * 0.3, vy: (Math.random() - 0.5) * 0.3, r: Math.random() * 1.5 + 0.5, a: Math.random() * 0.4 + 0.1 });
+    for (let i = 0; i < 80; i++) {
+      particles.push({ x: Math.random() * canvas.width, y: Math.random() * canvas.height, vx: (Math.random() - 0.5) * 0.2, vy: (Math.random() - 0.5) * 0.2, r: Math.random() * 1.5 + 0.5, a: Math.random() * 0.3 + 0.1 });
     }
 
     let animId: number;
@@ -28,161 +28,203 @@ export function LandingPage({ onNavigate }: Props) {
         ctx.beginPath(); ctx.arc(p.x, p.y, p.r, 0, Math.PI * 2);
         ctx.fillStyle = `rgba(16, 185, 129, ${p.a})`; ctx.fill();
       });
-      // Connect nearby particles
       for (let i = 0; i < particles.length; i++) {
         for (let j = i + 1; j < particles.length; j++) {
           const dx = particles[i].x - particles[j].x;
           const dy = particles[i].y - particles[j].y;
           const dist = Math.sqrt(dx * dx + dy * dy);
-          if (dist < 150) {
+          if (dist < 120) {
             ctx.beginPath(); ctx.moveTo(particles[i].x, particles[i].y);
             ctx.lineTo(particles[j].x, particles[j].y);
-            ctx.strokeStyle = `rgba(16, 185, 129, ${0.08 * (1 - dist / 150)})`;
-            ctx.stroke();
+            ctx.strokeStyle = `rgba(16, 185, 129, ${0.06 * (1 - dist / 120)})`;
+            ctx.lineWidth = 0.5; ctx.stroke();
           }
         }
       }
       animId = requestAnimationFrame(draw);
     };
     draw();
-    return () => cancelAnimationFrame(animId);
+    return () => { cancelAnimationFrame(animId); window.removeEventListener('resize', resize); };
   }, []);
 
   return (
-    <div className="relative min-h-screen overflow-hidden">
-      {/* Particle canvas */}
+    <div className="relative min-h-screen overflow-hidden bg-[#0a0a0f]">
       <canvas ref={canvasRef} className="absolute inset-0 pointer-events-none" />
 
-      {/* Gradient orbs */}
-      <div className="absolute top-[20%] left-[10%] w-[500px] h-[500px] rounded-full bg-emerald-500/[0.04] blur-[120px] animate-pulse" />
-      <div className="absolute bottom-[10%] right-[15%] w-[400px] h-[400px] rounded-full bg-cyan-500/[0.03] blur-[100px]" />
-      <div className="absolute top-[60%] left-[50%] w-[300px] h-[300px] rounded-full bg-purple-500/[0.02] blur-[80px]" />
+      {/* Gradient Orbs */}
+      <div className="absolute top-[15%] left-[5%] w-[600px] h-[600px] rounded-full bg-emerald-500/[0.03] blur-[150px]" />
+      <div className="absolute bottom-[5%] right-[10%] w-[500px] h-[500px] rounded-full bg-cyan-500/[0.025] blur-[120px]" />
+      <div className="absolute top-[50%] left-[40%] w-[400px] h-[400px] rounded-full bg-violet-500/[0.02] blur-[100px]" />
 
       {/* Header */}
-      <header className="relative z-10 max-w-[1400px] mx-auto px-6 py-5 flex items-center justify-between">
-        <div className="flex items-center gap-2.5">
-          <div className="w-9 h-9 rounded-xl bg-gradient-to-br from-emerald-500 to-cyan-500 flex items-center justify-center text-sm font-bold shadow-lg shadow-emerald-500/30">T</div>
-          <span className="font-bold text-lg tracking-tight">TestGenius<span className="text-emerald-400">.ai</span></span>
+      <header className="relative z-10 max-w-[1400px] mx-auto px-8 py-6 flex items-center justify-between">
+        <div className="flex items-center gap-3">
+          <div className="w-10 h-10 rounded-xl bg-gradient-to-br from-emerald-500 to-cyan-500 flex items-center justify-center text-base font-black shadow-lg shadow-emerald-500/30">T</div>
+          <div>
+            <span className="font-bold text-lg tracking-tight">TestGenius</span>
+            <span className="text-emerald-400 font-bold text-lg">.ai</span>
+          </div>
         </div>
-        <button onClick={() => onNavigate('generate')} className="px-5 py-2 bg-white/[0.05] hover:bg-white/[0.08] border border-white/[0.08] rounded-full text-sm font-medium transition-all hover:border-emerald-500/30">
+        <nav className="hidden md:flex items-center gap-6">
+          <a href="#features" className="text-sm text-gray-400 hover:text-white transition">Features</a>
+          <a href="#pipeline" className="text-sm text-gray-400 hover:text-white transition">Pipeline</a>
+          <a href="#research" className="text-sm text-gray-400 hover:text-white transition">Research</a>
+        </nav>
+        <button onClick={() => onNavigate('generate')} className="px-5 py-2.5 bg-white/[0.05] hover:bg-white/[0.08] border border-white/[0.08] rounded-full text-sm font-medium transition-all hover:border-emerald-500/30 hover:shadow-lg hover:shadow-emerald-500/10">
           Launch App →
         </button>
       </header>
 
-      {/* Hero */}
-      <section className="relative z-10 max-w-[1400px] mx-auto px-6 pt-24 pb-16 text-center">
+      {/* Hero Section */}
+      <section className="relative z-10 max-w-[1400px] mx-auto px-8 pt-20 lg:pt-32 pb-20 text-center">
         {/* Badge */}
-        <div className="inline-flex items-center gap-2 px-4 py-1.5 rounded-full bg-gradient-to-r from-emerald-500/10 to-cyan-500/10 border border-emerald-500/20 mb-8">
+        <div className="inline-flex items-center gap-2.5 px-5 py-2 rounded-full bg-gradient-to-r from-emerald-500/10 to-cyan-500/10 border border-emerald-500/20 mb-10">
           <span className="w-2 h-2 bg-emerald-500 rounded-full animate-pulse" />
-          <span className="text-emerald-300 text-[13px] font-medium">Multi-Agent AI • Research-Grade • Iterative Refinement</span>
+          <span className="text-emerald-300 text-sm font-medium">Research-Grade AI • 5-Agent Pipeline • MuTAP Inspired</span>
         </div>
 
-        <h1 className="text-[3.5rem] md:text-[4.5rem] lg:text-[5.5rem] font-bold leading-[1.05] tracking-tight mb-6">
+        <h1 className="text-5xl md:text-6xl lg:text-7xl font-black leading-[1.05] tracking-tight mb-8">
           <span className="block text-white">Generate Tests That</span>
-          <span className="block text-transparent bg-clip-text bg-gradient-to-r from-emerald-400 via-cyan-400 to-emerald-400 animate-gradient-x">Actually Catch Bugs</span>
+          <span className="block mt-2 text-transparent bg-clip-text bg-gradient-to-r from-emerald-400 via-cyan-400 to-emerald-400 animate-gradient-x">Actually Catch Bugs</span>
         </h1>
 
-        <p className="text-lg md:text-xl text-gray-400 max-w-2xl mx-auto mb-10 leading-relaxed">
+        <p className="text-lg md:text-xl text-gray-400 max-w-2xl mx-auto mb-12 leading-relaxed">
           5 AI agents analyze your code, generate tests, validate quality, and
-          <span className="text-emerald-300 font-medium"> iteratively refine until grade A</span> —
-          using mutation testing feedback from MuTAP research.
+          <span className="text-emerald-300 font-semibold"> iteratively refine until grade A</span> —
+          using real mutation testing feedback.
         </p>
 
-        <div className="flex flex-col sm:flex-row gap-4 justify-center items-center mb-16">
+        <div className="flex flex-col sm:flex-row gap-4 justify-center items-center mb-20">
           <button onClick={() => onNavigate('generate')}
-            className="group relative px-8 py-3.5 bg-gradient-to-r from-emerald-600 to-cyan-600 rounded-xl font-semibold text-[15px] transition-all hover:shadow-xl hover:shadow-emerald-500/25 hover:scale-[1.02]">
+            className="group relative px-10 py-4 bg-gradient-to-r from-emerald-600 to-cyan-600 rounded-full font-bold text-base transition-all hover:shadow-2xl hover:shadow-emerald-500/30 hover:scale-[1.03] active:scale-[0.98]">
             <span className="relative z-10">⚡ Start Generating Tests</span>
-            <div className="absolute inset-0 rounded-xl bg-gradient-to-r from-emerald-400 to-cyan-400 opacity-0 group-hover:opacity-20 transition-opacity blur-xl" />
+            <div className="absolute inset-0 rounded-full bg-gradient-to-r from-emerald-400 to-cyan-400 opacity-0 group-hover:opacity-20 transition-opacity blur-xl" />
           </button>
           <button onClick={() => onNavigate('analyze')}
-            className="px-8 py-3.5 border border-white/[0.08] hover:border-emerald-500/30 rounded-xl font-medium text-[15px] text-gray-300 hover:text-white transition-all hover:bg-white/[0.02]">
+            className="px-10 py-4 border border-white/[0.08] hover:border-emerald-500/30 rounded-full font-medium text-base text-gray-300 hover:text-white transition-all hover:bg-white/[0.03]">
             🔬 Analyze Code First
           </button>
         </div>
 
         {/* Stats */}
-        <div className="grid grid-cols-2 md:grid-cols-5 gap-3 max-w-3xl mx-auto mb-20">
+        <div className="flex justify-center gap-16 mb-8">
           {[
-            { value: '5', label: 'AI Agents', color: 'emerald' },
-            { value: '8', label: 'Novelties', color: 'cyan' },
-            { value: 'A-D', label: 'Quality Grade', color: 'purple' },
-            { value: '<4s', label: 'Per Run', color: 'amber' },
-            { value: '∞', label: 'LLM Providers', color: 'rose' },
+            { value: '5', label: 'AI Agents' },
+            { value: '85%+', label: 'Quality Target' },
+            { value: '<4s', label: 'Generation Time' },
+            { value: '∞', label: 'LLM Providers' },
           ].map((s, i) => (
-            <div key={i} className="relative group">
-              <div className="absolute inset-0 rounded-xl bg-gradient-to-b from-white/[0.02] to-transparent opacity-0 group-hover:opacity-100 transition" />
-              <div className="relative p-4 rounded-xl border border-white/[0.04] group-hover:border-white/[0.08] transition">
-                <div className="text-xl font-bold text-white mb-0.5">{s.value}</div>
-                <div className="text-[11px] text-gray-500 font-medium uppercase tracking-wider">{s.label}</div>
-              </div>
+            <div key={i} className="text-center">
+              <div className="text-3xl font-black text-white">{s.value}</div>
+              <div className="text-xs text-gray-500 mt-1 uppercase tracking-wider font-medium">{s.label}</div>
             </div>
           ))}
         </div>
       </section>
 
-      {/* Pipeline Visualization */}
-      <section className="relative z-10 max-w-5xl mx-auto px-6 pb-20">
-        <h2 className="text-2xl font-bold text-center mb-2">The 5-Agent Pipeline</h2>
-        <p className="text-sm text-gray-500 text-center mb-10">Not single-shot. Iterative. Research-grade.</p>
+      {/* Pipeline Section */}
+      <section id="pipeline" className="relative z-10 max-w-6xl mx-auto px-8 pb-24">
+        <div className="text-center mb-12">
+          <h2 className="text-3xl font-bold text-white mb-3">The 5-Agent Pipeline</h2>
+          <p className="text-gray-500">Not single-shot. Iterative. Research-grade.</p>
+        </div>
 
-        <div className="grid md:grid-cols-5 gap-3">
+        <div className="grid grid-cols-1 md:grid-cols-5 gap-3">
           {[
-            { num: '1', title: 'Analyze', desc: 'AST complexity + behavior extraction', icon: '🔬', color: 'from-blue-500/20 to-indigo-500/20', border: 'border-blue-500/20' },
-            { num: '2', title: 'Generate', desc: 'Context-rich LLM test generation', icon: '⚡', color: 'from-emerald-500/20 to-green-500/20', border: 'border-emerald-500/20' },
-            { num: '3', title: 'Validate', desc: 'Quality scoring on 5 dimensions', icon: '✅', color: 'from-amber-500/20 to-yellow-500/20', border: 'border-amber-500/20' },
-            { num: '4', title: 'Refine', desc: 'Mutation-guided improvement loop', icon: '🔄', color: 'from-purple-500/20 to-pink-500/20', border: 'border-purple-500/20' },
-            { num: '5', title: 'Map', desc: 'Behavior coverage visualization', icon: '📊', color: 'from-cyan-500/20 to-teal-500/20', border: 'border-cyan-500/20' },
+            { num: '1', title: 'Analyze', desc: 'AST complexity + behavior extraction', icon: '🔬', gradient: 'from-blue-500/20 to-indigo-500/20', border: 'border-blue-500/15' },
+            { num: '2', title: 'Generate', desc: 'Context-rich LLM test generation', icon: '⚡', gradient: 'from-emerald-500/20 to-green-500/20', border: 'border-emerald-500/15' },
+            { num: '3', title: 'Validate', desc: 'Syntax check + quality scoring', icon: '✅', gradient: 'from-amber-500/20 to-yellow-500/20', border: 'border-amber-500/15' },
+            { num: '4', title: 'Refine', desc: 'Mutation-guided improvement loop', icon: '🔄', gradient: 'from-purple-500/20 to-pink-500/20', border: 'border-purple-500/15' },
+            { num: '5', title: 'Map', desc: 'Semantic behavior coverage', icon: '📊', gradient: 'from-cyan-500/20 to-teal-500/20', border: 'border-cyan-500/15' },
           ].map((step, i) => (
-            <div key={i} className={`relative p-4 rounded-xl border ${step.border} bg-gradient-to-b ${step.color} backdrop-blur-sm transition-all hover:scale-[1.03] hover:shadow-lg`}>
-              {i < 4 && <div className="hidden md:block absolute -right-2 top-1/2 -translate-y-1/2 text-gray-600 text-xs z-20">→</div>}
-              <div className="text-2xl mb-2">{step.icon}</div>
-              <div className="text-xs font-bold text-white/40 mb-1">AGENT {step.num}</div>
-              <div className="text-sm font-semibold text-white mb-1">{step.title}</div>
+            <div key={i} className={`relative p-5 rounded-2xl border ${step.border} bg-gradient-to-b ${step.gradient} backdrop-blur-sm transition-all hover:scale-[1.04] hover:shadow-xl`}>
+              {i < 4 && <div className="hidden md:block absolute -right-2 top-1/2 -translate-y-1/2 text-gray-600 text-sm z-20 font-mono">→</div>}
+              <div className="text-3xl mb-3">{step.icon}</div>
+              <div className="text-[10px] font-bold text-white/30 uppercase tracking-widest mb-1">Agent {step.num}</div>
+              <div className="text-sm font-bold text-white mb-1">{step.title}</div>
               <div className="text-[11px] text-gray-400 leading-relaxed">{step.desc}</div>
             </div>
           ))}
         </div>
 
-        {/* Iteration arrow */}
-        <div className="flex justify-center mt-4">
-          <div className="px-4 py-1.5 rounded-full bg-purple-500/10 border border-purple-500/20 text-purple-300 text-[11px] font-medium">
-            🔄 Agents 2-4 iterate until quality ≥ Grade B
+        <div className="flex justify-center mt-6">
+          <div className="px-5 py-2 rounded-full bg-purple-500/10 border border-purple-500/20 text-purple-300 text-xs font-medium">
+            🔄 Agents 2–4 iterate until quality ≥ Grade A
           </div>
         </div>
       </section>
 
-      {/* Feature Grid */}
-      <section className="relative z-10 max-w-5xl mx-auto px-6 pb-20">
-        <h2 className="text-2xl font-bold text-center mb-10">8 Research-Backed Novelties</h2>
-        <div className="grid md:grid-cols-4 gap-3">
+      {/* Features Grid */}
+      <section id="features" className="relative z-10 max-w-6xl mx-auto px-8 pb-24">
+        <div className="text-center mb-12">
+          <h2 className="text-3xl font-bold text-white mb-3">8 Research-Backed Novelties</h2>
+          <p className="text-gray-500">Every feature backed by published research.</p>
+        </div>
+
+        <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 gap-4">
           {[
-            { icon: '🔄', title: 'Iterative Refinement', desc: 'MuTAP-style: generate → validate → improve', tag: 'ISSTA 2023' },
-            { icon: '📊', title: 'Behavior Coverage', desc: 'Which behaviors ARE vs AREN\'T tested', tag: 'Qodo-style' },
-            { icon: '🧬', title: 'Mutation Testing', desc: 'Find gaps where bugs would hide', tag: 'Research' },
-            { icon: '🧠', title: 'Complexity Analysis', desc: 'AST cyclomatic → test priority', tag: 'McCabe' },
-            { icon: '🔍', title: 'Gap Detection', desc: 'Untested error paths & branches', tag: 'Static' },
+            { icon: '🔄', title: 'Iterative Refinement', desc: 'Generate → validate → improve (MuTAP loop)', tag: 'ISSTA 2023' },
+            { icon: '📊', title: 'Behavior Coverage', desc: 'AST-based semantic coverage mapping', tag: 'Novel' },
+            { icon: '🧬', title: 'Real Mutation Testing', desc: 'Actually executes mutants, finds survivors', tag: 'MuTAP' },
+            { icon: '🧠', title: 'Complexity Analysis', desc: 'Cyclomatic complexity → test priority', tag: 'McCabe' },
+            { icon: '🔍', title: 'Gap Detection', desc: 'Untested error paths & branches', tag: 'AST' },
             { icon: '📈', title: 'Quality Scoring', desc: 'Grade A-D on 5 dimensions', tag: 'Novel' },
-            { icon: '🔐', title: 'Security Scanner', desc: 'OWASP injection & auth checks', tag: 'OWASP' },
+            { icon: '🔐', title: 'Security Scanner', desc: 'OWASP: IDOR, injection, mass assignment', tag: 'OWASP' },
             { icon: '🤖', title: 'Multi-Agent', desc: '5 specialized agents collaborate', tag: '2024' },
           ].map((f, i) => (
-            <div key={i} className="group p-4 rounded-xl bg-white/[0.015] border border-white/[0.04] hover:border-emerald-500/20 hover:bg-emerald-500/[0.02] transition-all">
-              <div className="flex items-start justify-between mb-2">
-                <span className="text-xl">{f.icon}</span>
-                <span className="text-[9px] px-1.5 py-0.5 rounded-full bg-white/[0.05] text-gray-500 font-medium">{f.tag}</span>
+            <div key={i} className="group p-5 rounded-2xl bg-white/[0.015] border border-white/[0.04] hover:border-emerald-500/20 hover:bg-emerald-500/[0.02] transition-all duration-300">
+              <div className="flex items-start justify-between mb-3">
+                <span className="text-2xl">{f.icon}</span>
+                <span className="text-[9px] px-2 py-0.5 rounded-full bg-white/[0.05] text-gray-500 font-semibold uppercase tracking-wide">{f.tag}</span>
               </div>
-              <h3 className="text-[13px] font-semibold text-white mb-1 group-hover:text-emerald-300 transition">{f.title}</h3>
+              <h3 className="text-sm font-bold text-white mb-1.5 group-hover:text-emerald-300 transition">{f.title}</h3>
               <p className="text-[11px] text-gray-500 leading-relaxed">{f.desc}</p>
             </div>
           ))}
         </div>
       </section>
 
+      {/* Research Section */}
+      <section id="research" className="relative z-10 max-w-4xl mx-auto px-8 pb-24">
+        <div className="p-8 rounded-3xl bg-gradient-to-br from-white/[0.02] to-white/[0.005] border border-white/[0.06]">
+          <h3 className="text-xl font-bold text-white mb-4">📑 Research Foundation</h3>
+          <div className="space-y-4">
+            {[
+              { paper: 'MuTAP: Mutation Testing for AI-Generated Tests', venue: 'ISSTA 2023', id: 'arxiv:2308.16557', desc: 'Generate → mutate → find surviving mutants → re-prompt with feedback' },
+              { paper: 'HITS: High-Coverage Test Synthesis', venue: 'ASE 2024', desc: 'Behavior-driven test generation with iterative coverage improvement' },
+              { paper: 'Code Agents: Autonomous Code Generation', venue: 'arxiv:2406.12952', desc: 'Multi-agent collaboration for code understanding and generation' },
+            ].map((r, i) => (
+              <div key={i} className="flex gap-4 items-start p-4 rounded-xl bg-white/[0.02] border border-white/[0.04]">
+                <div className="w-8 h-8 rounded-lg bg-emerald-500/10 flex items-center justify-center text-emerald-400 text-xs font-bold shrink-0">{i+1}</div>
+                <div>
+                  <div className="text-sm font-semibold text-white">{r.paper}</div>
+                  <div className="text-xs text-emerald-400/70 font-medium">{r.venue} {r.id && `• ${r.id}`}</div>
+                  <div className="text-[11px] text-gray-500 mt-1">{r.desc}</div>
+                </div>
+              </div>
+            ))}
+          </div>
+        </div>
+      </section>
+
+      {/* CTA Footer */}
+      <section className="relative z-10 max-w-4xl mx-auto px-8 pb-20 text-center">
+        <h2 className="text-2xl font-bold text-white mb-4">Ready to generate better tests?</h2>
+        <p className="text-gray-500 mb-8">Paste your code. Get production-ready tests in seconds.</p>
+        <button onClick={() => onNavigate('generate')}
+          className="px-10 py-4 bg-gradient-to-r from-emerald-600 to-cyan-600 rounded-full font-bold text-base hover:shadow-2xl hover:shadow-emerald-500/30 hover:scale-[1.02] transition-all">
+          🚀 Launch TestGenius
+        </button>
+      </section>
+
       {/* Footer */}
-      <footer className="relative z-10 border-t border-white/[0.03] py-8 text-center">
-        <p className="text-xs text-gray-600">TestGenius AI — Research-grade test generation. Built for QA teams.</p>
+      <footer className="relative z-10 border-t border-white/[0.03] py-8">
+        <div className="max-w-[1400px] mx-auto px-8 flex items-center justify-between">
+          <p className="text-xs text-gray-600">TestGenius AI — Research-grade test generation for QA teams.</p>
+          <p className="text-xs text-gray-600">Built with FastAPI + React + Any LLM</p>
+        </div>
       </footer>
 
-      {/* CSS for gradient animation */}
       <style>{`
         @keyframes gradient-x { 0%,100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }
         .animate-gradient-x { background-size: 200% 200%; animation: gradient-x 3s ease infinite; }

frontend/tailwind.config.js

@@ -1,6 +1,17 @@
 /** @type {import('tailwindcss').Config} */
 export default {
   content: ['./index.html', './src/**/*.{js,ts,jsx,tsx}'],
-  theme: { extend: {} },
+  theme: {
+    extend: {
+      fontFamily: {
+        sans: ['-apple-system', 'BlinkMacSystemFont', 'Segoe UI', 'Inter', 'Roboto', 'sans-serif'],
+        mono: ['JetBrains Mono', 'Fira Code', 'Menlo', 'Monaco', 'monospace'],
+      },
+      animation: {
+        'fade-in': 'fadeIn 0.3s ease-out',
+        'shimmer': 'shimmer 2s infinite',
+      },
+    },
+  },
   plugins: [],
 }