frontend mvp

frontend/pages/index.js

@@ -41,16 +41,16 @@ export default function Home() {
 
   return (
     <div className="min-h-screen bg-gradient-to-br from-slate-900 via-purple-900 to-slate-900 text-white">
-      {/* Header */}
+      <div className="flex flex-col mx-auto min-h-[30vh] items-center justify-center">
-      <div className="container mx-auto px-6 py-8">
         <div className="text-center mb-12">
-          <h1 className="text-5xl font-bold bg-gradient-to-r from-blue-400 via-purple-400 to-pink-400 bg-clip-text text-transparent mb-4">
+          <h1 className="text-7xl font-bold gradient-text mb-4">
             🎤 Voice Assistant
           </h1>
         </div>
+      </div>
 
         {/* Main Interface */}
-        <div className="flex flex-col lg:flex-row items-center justify-center gap-12 max-w-6xl mx-auto">
+        <div className="flex flex-col lg:flex-row items-center justify-center min-h-[50vh] gap-12 max-w-6xl mx-auto my-auto">
 
           {/* Recording Section */}
           <div className="flex flex-col items-center space-y-6">
@@ -70,23 +70,21 @@ export default function Home() {
                 onTouchStart={handleStartRecording}
                 onTouchEnd={handleStopRecording}
                 disabled={isProcessing}
-                className={`record-button w-40 h-40 rounded-full border-none text-white text-lg font-semibold
+                className={`record-button w-60 h-60 rounded-full border-none text-white text-lg font-semibold cursor-pointer
                   ${recording
-                    ? 'bg-gradient-to-r from-red-500 to-red-600 recording-pulse shadow-red-500/50'
+                    ? 'record-button--recording'
                     : isProcessing
-                    ? 'bg-gradient-to-r from-yellow-500 to-orange-500 shadow-yellow-500/50'
+                    ? 'record-button--processing'
-                    : 'bg-gradient-to-r from-blue-500 to-purple-600 shadow-blue-500/50'
+                    : 'record-button--idle'
                   }
-                  ${isProcessing ? 'cursor-not-allowed opacity-75' : 'cursor-pointer hover:shadow-xl'}
-                  disabled:cursor-not-allowed disabled:opacity-75
                 `}
               >
                 <div className="flex flex-col items-center">
-                  <div className="text-3xl mb-2">
+                  <div className="text-4xl mb-2">
                     {recording ? '🎙️' : isProcessing ? '⏳' : '🎤'}
                   </div>
-                  <div className="text-sm">
+                  <div className="text-2xl">
-                    {recording ? 'Recording...' : isProcessing ? 'Processing...' : 'Hold / Click'}
+                    {recording ? 'Recording...' : isProcessing ? 'Processing...' : 'Hold to Record'}
                   </div>
                 </div>
               </button>
@@ -94,30 +92,30 @@ export default function Home() {
 
             {/* Status indicators */}
             <div className="flex space-x-4">
-              <div className={`flex items-center space-x-2 px-4 py-2 rounded-full transition-all duration-300 ${
+              <div className={`status-indicator ${
-                recording ? 'bg-red-500/20 text-red-300' : 'bg-gray-700/50 text-gray-400'
+                recording ? 'status-indicator--recording' : ''
               }`}>
-                <div className={`w-2 h-2 rounded-full ${recording ? 'bg-red-400 animate-pulse' : 'bg-gray-500'}`}></div>
+                <div className={`pulse-dot ${recording ? 'pulse-dot--error' : 'pulse-dot--inactive'}`}></div>
-                <span className="text-sm font-medium">Recording</span>
+                <span className="text-xl font-medium">Recording</span>
               </div>
 
-              <div className={`flex items-center space-x-2 px-4 py-2 rounded-full transition-all duration-300 ${
+              <div className={`status-indicator ${
-                isProcessing ? 'bg-yellow-500/20 text-yellow-300' : 'bg-gray-700/50 text-gray-400'
+                isProcessing ? 'status-indicator--processing' : ''
               }`}>
-                <div className={`w-2 h-2 rounded-full ${isProcessing ? 'bg-yellow-400 animate-pulse' : 'bg-gray-500'}`}></div>
+                <div className={`pulse-dot ${isProcessing ? 'pulse-dot--warning' : 'pulse-dot--inactive'}`}></div>
-                <span className="text-sm font-medium">Processing</span>
+                <span className="text-xl font-medium">Processing</span>
               </div>
             </div>
           </div>
 
           {/* Audio Playback Section */}
-          <div className="bg-white/10 backdrop-blur-lg rounded-2xl p-8 shadow-2xl border border-white/20 min-w-[400px]">
+          <div className="glass-panel p-8 min-w-2/3">
             <div className="text-center mb-6">
               <h3 className="text-2xl font-semibold text-white mb-2">🔊 Audio Response</h3>
-              <p className="text-gray-300">Your AI assistant's response will play here</p>
+              <p className="text-theme-muted">Your AI assistant's response will play here</p>
             </div>
 
-            <div className="audio-visualizer bg-gradient-to-r from-blue-500/10 to-purple-500/10 rounded-xl p-6">
+            <div className="audio-visualizer p-6">
               <audio
                 ref={audioRef}
                 controls
@@ -128,13 +126,13 @@ export default function Home() {
               />
 
               {playing && (
-                <div className="flex items-center justify-center space-x-3 text-green-400">
+                <div className="flex items-center justify-center space-x-3 text-theme-success">
                   <div className="flex space-x-1">
-                    <div className="w-1 h-6 bg-green-400 rounded animate-bounce"></div>
+                    <div className="w-1 h-6 bg-theme-success rounded animate-bounce"></div>
-                    <div className="w-1 h-8 bg-green-400 rounded animate-bounce" style={{animationDelay: '0.1s'}}></div>
+                    <div className="w-1 h-8 bg-theme-success rounded animate-bounce" style={{animationDelay: '0.1s'}}></div>
-                    <div className="w-1 h-6 bg-green-400 rounded animate-bounce" style={{animationDelay: '0.2s'}}></div>
+                    <div className="w-1 h-6 bg-theme-success rounded animate-bounce" style={{animationDelay: '0.2s'}}></div>
-                    <div className="w-1 h-10 bg-green-400 rounded animate-bounce" style={{animationDelay: '0.3s'}}></div>
+                    <div className="w-1 h-10 bg-theme-success rounded animate-bounce" style={{animationDelay: '0.3s'}}></div>
-                    <div className="w-1 h-6 bg-green-400 rounded animate-bounce" style={{animationDelay: '0.4s'}}></div>
+                    <div className="w-1 h-6 bg-theme-success rounded animate-bounce" style={{animationDelay: '0.4s'}}></div>
                   </div>
                   <span className="font-medium">Playing response...</span>
                 </div>
@@ -142,28 +140,6 @@ export default function Home() {
             </div>
           </div>
         </div>
-
-        {/* Instructions */}
-        <div className="mt-16 text-center">
-          <div className="bg-white/5 backdrop-blur-sm rounded-xl p-6 max-w-3xl mx-auto border border-white/10">
-            <h4 className="text-lg font-semibold text-white mb-4">💡 How to Use</h4>
-            <div className="grid md:grid-cols-3 gap-4 text-sm text-gray-300">
-              <div className="flex flex-col items-center space-y-2">
-                <div className="w-12 h-12 bg-blue-500/20 rounded-full flex items-center justify-center text-2xl">1️⃣</div>
-                <p><strong>Press & Hold</strong><br/>Hold the button down while speaking</p>
-              </div>
-              <div className="flex flex-col items-center space-y-2">
-                <div className="w-12 h-12 bg-purple-500/20 rounded-full flex items-center justify-center text-2xl">2️⃣</div>
-                <p><strong>Or Click Toggle</strong><br/>Click once to start, click again to stop</p>
-              </div>
-              <div className="flex flex-col items-center space-y-2">
-                <div className="w-12 h-12 bg-pink-500/20 rounded-full flex items-center justify-center text-2xl">3️⃣</div>
-                <p><strong>Listen</strong><br/>Your AI assistant will respond with audio</p>
-              </div>
-            </div>
-          </div>
-        </div>
-      </div>
       </div>
   )
 }

frontend/styles/globals.css

@@ -1,39 +1,246 @@
 @import "tailwindcss";
 
+:root {
+  /* Primary Theme Colors */
+  --color-primary: #3b82f6;        /* Blue-500 */
+  --color-primary-dark: #2563eb;   /* Blue-600 */
+  --color-primary-light: #60a5fa;  /* Blue-400 */
+
+  --color-secondary: #8b5cf6;      /* Purple-500 */
+  --color-secondary-dark: #7c3aed; /* Purple-600 */
+  --color-secondary-light: #a78bfa; /* Purple-400 */
+
+  --color-accent: #ec4899;         /* Pink-500 */
+  --color-accent-light: #f472b6;   /* Pink-400 */
+
+  /* Status Colors */
+  --color-success: #10b981;        /* Emerald-500 */
+  --color-success-light: #34d399;  /* Emerald-400 */
+  --color-warning: #f59e0b;        /* Yellow-500 */
+  --color-warning-light: #fbbf24;  /* Yellow-400 */
+  --color-error: #ef4444;          /* Red-500 */
+  --color-error-light: #f87171;    /* Red-400 */
+
+  /* Background Colors */
+  --color-bg-primary: #0f172a;     /* Slate-900 */
+  --color-bg-secondary: #1e293b;   /* Slate-800 */
+  --color-bg-tertiary: #334155;    /* Slate-700 */
+  --color-bg-overlay: rgba(255, 255, 255, 0.1);
+  --color-bg-overlay-dark: rgba(0, 0, 0, 0.2);
+
+  /* Text Colors */
+  --color-text-primary: #ffffff;
+  --color-text-secondary: #cbd5e1;  /* Slate-300 */
+  --color-text-muted: #94a3b8;      /* Slate-400 */
+  --color-text-inverse: #1e293b;    /* Slate-800 */
+
+  /* Border Colors */
+  --color-border-light: rgba(255, 255, 255, 0.2);
+  --color-border-medium: rgba(255, 255, 255, 0.3);
+  --color-border-dark: rgba(255, 255, 255, 0.1);
+
+  /* Gradient Definitions */
+  --gradient-primary: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
+  --gradient-secondary: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
+  --gradient-background: linear-gradient(135deg, var(--color-bg-primary) 0%, var(--color-secondary-dark) 50%, var(--color-bg-primary) 100%);
+  --gradient-text: linear-gradient(135deg, var(--color-primary-light), var(--color-secondary-light), var(--color-accent-light));
+
+  /* Shadow Definitions */
+  --shadow-primary: 0 25px 50px -12px rgba(59, 130, 246, 0.25);
+  --shadow-secondary: 0 25px 50px -12px rgba(139, 92, 246, 0.25);
+  --shadow-error: 0 25px 50px -12px rgba(239, 68, 68, 0.25);
+  --shadow-success: 0 25px 50px -12px rgba(16, 185, 129, 0.25);
+  --shadow-warning: 0 25px 50px -12px rgba(245, 158, 11, 0.25);
+}
 
 @layer base {
   body {
-    @apply bg-gradient-to-br from-slate-900 via-purple-900 to-slate-900;
+    background: var(--gradient-background);
     @apply min-h-screen;
+    color: var(--color-text-primary);
   }
 }
 
 @layer components {
+  /* Recording Button Styles */
   .record-button {
-    @apply relative overflow-hidden;
+    position: relative;
-    @apply transition-all duration-300 ease-in-out;
+    overflow: hidden;
-    @apply transform hover:scale-105 active:scale-95;
+    transition: all 0.3s ease-in-out;
-    @apply shadow-2xl;
+    transform-origin: center;
+    box-shadow: var(--shadow-primary);
+  }
+
+  .record-button:hover {
+    transform: scale(1.05);
+  }
+
+  .record-button:active {
+    transform: scale(0.95);
   }
 
   .record-button::before {
     content: '';
-    @apply absolute inset-0 bg-gradient-to-r from-transparent via-white to-transparent;
+    position: absolute;
-    @apply opacity-0 translate-x-[-100%];
+    top: 0;
-    @apply transition-all duration-700;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
+    opacity: 0;
+    transform: translateX(-100%);
+    transition: all 0.7s ease;
   }
 
   .record-button:hover::before {
-    @apply opacity-20 translate-x-[100%];
+    opacity: 1;
+    transform: translateX(100%);
   }
 
+  /* Recording Button States */
+  .record-button--idle {
+    background: var(--gradient-primary);
+    box-shadow: var(--shadow-primary);
+  }
+
+  .record-button--recording {
+    background: linear-gradient(135deg, var(--color-error), var(--color-error-light));
+    box-shadow: var(--shadow-error);
+    animation: recording-pulse 1.5s ease-in-out infinite;
+  }
+
+  .record-button--processing {
+    background: linear-gradient(135deg, var(--color-warning), var(--color-warning-light));
+    box-shadow: var(--shadow-warning);
+    opacity: 0.8;
+    cursor: not-allowed;
+  }
+
+  /* Audio Visualizer Styles */
   .audio-visualizer {
-    @apply relative overflow-hidden rounded-xl;
+    position: relative;
+    overflow: hidden;
+    border-radius: 0.75rem;
+    background: var(--color-bg-overlay);
+    backdrop-filter: blur(10px);
+    border: 1px solid var(--color-border-light);
   }
 
   .audio-visualizer::after {
     content: '';
-    @apply absolute inset-0 bg-gradient-to-r from-blue-500/20 to-purple-500/20;
+    position: absolute;
-    @apply animate-pulse;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background: linear-gradient(90deg,
+      rgba(59, 130, 246, 0.1),
+      rgba(139, 92, 246, 0.1)
+    );
+    animation: pulse 2s ease-in-out infinite;
+  }
+
+  /* Status Indicators */
+  .status-indicator {
+    display: flex;
+    align-items: center;
+    gap: 0.5rem;
+    padding: 0.5rem 1rem;
+    border-radius: 9999px;
+    transition: all 0.3s ease;
+    border: 1px solid var(--color-border-dark);
+  }
+
+  .status-indicator--active {
+    background: var(--color-bg-overlay);
+    border-color: var(--color-border-medium);
+  }
+
+  .status-indicator--recording {
+    background: rgba(239, 68, 68, 0.1);
+    color: var(--color-error-light);
+    border-color: var(--color-error);
+  }
+
+  .status-indicator--processing {
+    background: rgba(245, 158, 11, 0.1);
+    color: var(--color-warning-light);
+    border-color: var(--color-warning);
+  }
+
+  /* Utility Classes */
+  .glass-panel {
+    background: var(--color-bg-overlay);
+    backdrop-filter: blur(16px);
+    border: 1px solid var(--color-border-light);
+    border-radius: 1rem;
+  }
+
+  .gradient-text {
+    background: var(--gradient-text);
+    background-clip: text;
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+  }
+
+  .pulse-dot {
+    width: 0.5rem;
+    height: 0.5rem;
+    border-radius: 50%;
+    animation: pulse 2s ease-in-out infinite;
+  }
+
+  .pulse-dot--error {
+    background-color: var(--color-error-light);
+  }
+
+  .pulse-dot--warning {
+    background-color: var(--color-warning-light);
+  }
+
+  .pulse-dot--inactive {
+    background-color: var(--color-text-muted);
+  }
+
+  /* Animations */
+  @keyframes recording-pulse {
+    0%, 100% {
+      box-shadow: var(--shadow-error);
+    }
+    50% {
+      box-shadow: var(--shadow-error), 0 0 0 10px rgba(239, 68, 68, 0.1);
     }
   }
+
+  @keyframes pulse {
+    0%, 100% {
+      opacity: 0.5;
+    }
+    50% {
+      opacity: 1;
+    }
+  }
+
+  /* Theme Color Utility Classes */
+  .bg-theme-primary { background-color: var(--color-primary); }
+  .bg-theme-secondary { background-color: var(--color-secondary); }
+  .bg-theme-accent { background-color: var(--color-accent); }
+  .bg-theme-success { background-color: var(--color-success); }
+  .bg-theme-warning { background-color: var(--color-warning); }
+  .bg-theme-error { background-color: var(--color-error); }
+
+  .text-theme-primary { color: var(--color-primary); }
+  .text-theme-secondary { color: var(--color-secondary); }
+  .text-theme-accent { color: var(--color-accent); }
+  .text-theme-success { color: var(--color-success); }
+  .text-theme-warning { color: var(--color-warning); }
+  .text-theme-error { color: var(--color-error); }
+  .text-theme-muted { color: var(--color-text-muted); }
+
+  .border-theme-light { border-color: var(--color-border-light); }
+  .border-theme-medium { border-color: var(--color-border-medium); }
+  .border-theme-primary { border-color: var(--color-primary); }
+  .border-theme-error { border-color: var(--color-error); }
+  .border-theme-warning { border-color: var(--color-warning); }
+  .border-theme-success { border-color: var(--color-success); }
+}