**Prompt: Fake Analytics Dashboard App (Full-Stack)**

Build a complete full-stack web application that displays a **fake analytics dashboard** with **moving, auto-updating stats**. The data does **not need to be real** — it should be **randomized or oscillate within credible ranges** so the dashboard feels alive.

### Requirements

#### Frontend
- Modern UI (React, Next.js, or your default framework).
- Cards showing live metrics like:
- Active Users
- Conversion Rate
- API Latency
- Revenue Today
- Small charts that auto-update (line chart, bar chart, sparkline).
- Smooth transitions (animate value changes).

#### Backend
- Simple API endpoints that return pseudo-realistic data.
- Values should update every few seconds by:
- incrementing/decrementing within a valid range, or
- generating new random but believable values.
- Optional: WebSocket endpoint for real-time updates.

#### Behavior
- Metrics refresh every 2–5 seconds.
- Random noise added so values fluctuate credibly (e.g., ±5%).
- Charts update continuously with new points.
- No real database required — in-memory or mock functions are fine.

### Bonus
- Dark/light mode.
- Responsive layout.
- Header with a fake company name: **“NovaPulse Analytics”**.

**Goal:** produce a polished, working live dashboard that “looks real” even though all data is synthetic.

README.md

@@ -1,10 +1,13 @@
 ---
-title: Pulsefaker Analytics Dash
-emoji: 👀
-colorFrom: indigo
-colorTo: green
+title: PulseFaker Analytics Dash ✨
+colorFrom: green
+colorTo: blue
+emoji: 🐳
 sdk: static
 pinned: false
+tags:
+  - deepsite-v3
 ---
 
-Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference
+# Welcome to your new DeepSite project!
+This project was created with [DeepSite](https://huggingface.co/deepsite).

components/metrics-card.js

@@ -0,0 +1,63 @@
+class MetricsCard extends HTMLElement {
+    static get observedAttributes() {
+        return ['title', 'icon', 'value', 'change', 'color'];
+    }
+
+    constructor() {
+        super();
+        this.attachShadow({ mode: 'open' });
+    }
+
+    connectedCallback() {
+        this.render();
+    }
+
+    attributeChangedCallback(name, oldValue, newValue) {
+        if (oldValue !== newValue) {
+            this.render();
+        }
+    }
+
+    render() {
+        const title = this.getAttribute('title') || '';
+        const icon = this.getAttribute('icon') || 'activity';
+        const value = this.getAttribute('value') || '0';
+        const change = parseFloat(this.getAttribute('change') || '0');
+        const color = this.getAttribute('color') || 'primary';
+
+        const changeClass = change > 0 ? 'change-positive' : change < 0 ? 'change-negative' : 'change-neutral';
+        const changeIcon = change > 0 ? 'trending-up' : change < 0 ? 'trending-down' : 'minus';
+        const changeText = change > 0 ? `+${change}` : change;
+
+        this.shadowRoot.innerHTML = `
+            <style>
+                .card {
+                    transition: all 0.3s ease;
+                }
+                .card:hover {
+                    transform: translateY(-2px);
+                    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
+                }
+            </style>
+            <div class="card bg-white dark:bg-gray-800 rounded-xl shadow p-6 hover:shadow-md transition-all duration-300">
+                <div class="flex justify-between items-start">
+                    <div>
+                        <p class="text-gray-500 dark:text-gray-400 text-sm font-medium">${title}</p>
+                        <h3 class="text-2xl font-bold mt-1">${value}</h3>
+                    </div>
+                    <div class="w-10 h-10 rounded-lg flex items-center justify-center bg-${color}-100 dark:bg-${color}-900/30">
+                        <i data-feather="${icon}" class="text-${color}-600 dark:text-${color}-400"></i>
+                    </div>
+                </div>
+                <div class="mt-4 flex items-center ${changeClass}">
+                    <i data-feather="${changeIcon}" class="w-4 h-4 mr-1"></i>
+                    <span class="text-sm font-medium">${changeText}%</span>
+                    <span class="text-xs ml-1 opacity-70">vs last update</span>
+                </div>
+            </div>
+        `;
+        feather.replace();
+    }
+}
+
+customElements.define('metrics-card', MetricsCard);

components/navbar.js

@@ -0,0 +1,42 @@
+class CustomNavbar extends HTMLElement {
+    connectedCallback() {
+        this.attachShadow({ mode: 'open' });
+        this.shadowRoot.innerHTML = `
+            <style>
+                .theme-toggle:hover {
+                    transform: rotate(30deg);
+                }
+                .theme-toggle:active {
+                    transform: rotate(60deg);
+                }
+            </style>
+            <nav class="bg-white dark:bg-gray-800 shadow-sm">
+                <div class="container mx-auto px-4 py-4 flex justify-between items-center">
+                    <div class="flex items-center space-x-2">
+                        <div class="w-8 h-8 rounded-full bg-gradient-to-tr from-primary to-secondary flex items-center justify-center">
+                            <i data-feather="activity" class="text-white w-4 h-4"></i>
+                        </div>
+                        <h1 class="text-xl font-bold">PulseFaker Analytics</h1>
+                    </div>
+                    <div class="flex items-center space-x-4">
+                        <button class="theme-toggle p-2 rounded-full hover:bg-gray-100 dark:hover:bg-gray-700 transition-transform duration-300">
+                            <i data-feather="moon" class="hidden dark:block"></i>
+                            <i data-feather="sun" class="dark:hidden"></i>
+                        </button>
+                        <div class="w-8 h-8 rounded-full bg-gray-200 dark:bg-gray-600 flex items-center justify-center">
+                            <i data-feather="user" class="text-gray-600 dark:text-gray-300"></i>
+                        </div>
+                    </div>
+                </div>
+            </nav>
+        `;
+
+        this.shadowRoot.querySelector('.theme-toggle').addEventListener('click', () => {
+            document.documentElement.classList.toggle('dark');
+            localStorage.setItem('darkMode', document.documentElement.classList.contains('dark'));
+            feather.replace();
+        });
+    }
+}
+
+customElements.define('custom-navbar', CustomNavbar);

index.html

@@ -1,19 +1,64 @@
-<!doctype html>
-<html>
-	<head>
-		<meta charset="utf-8" />
-		<meta name="viewport" content="width=device-width" />
-		<title>My static Space</title>
-		<link rel="stylesheet" href="style.css" />
-	</head>
-	<body>
-		<div class="card">
-			<h1>Welcome to your static Space!</h1>
-			<p>You can modify this app directly by editing <i>index.html</i> in the Files and versions tab.</p>
-			<p>
-				Also don't forget to check the
-				<a href="https://huggingface.co/docs/hub/spaces" target="_blank">Spaces documentation</a>.
-			</p>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html>
+<html lang="en" class="h-full">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>PulseFaker Analytics</title>
+    <link rel="stylesheet" href="style.css">
+    <script src="https://cdn.tailwindcss.com"></script>
+    <script src="https://cdn.jsdelivr.net/npm/feather-icons/dist/feather.min.js"></script>
+    <script src="https://unpkg.com/feather-icons"></script>
+    <script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
+    <script>
+        tailwind.config = {
+            theme: {
+                extend: {
+                    colors: {
+                        primary: '#6366f1',
+                        secondary: '#8b5cf6',
+                    }
+                }
+            }
+        }
+    </script>
+</head>
+<body class="bg-gray-50 dark:bg-gray-900 text-gray-900 dark:text-gray-100 h-full transition-colors duration-300">
+    <custom-navbar></custom-navbar>
+    
+    <main class="container mx-auto px-4 py-8">
+        <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6 mb-8">
+            <metrics-card title="Active Users" icon="users" value="0" change="0" color="primary"></metrics-card>
+            <metrics-card title="Conversion Rate" icon="trending-up" value="0" change="0" color="secondary"></metrics-card>
+            <metrics-card title="API Latency" icon="clock" value="0" change="0" color="primary"></metrics-card>
+            <metrics-card title="Revenue Today" icon="dollar-sign" value="0" change="0" color="secondary"></metrics-card>
+        </div>
+
+        <div class="grid grid-cols-1 lg:grid-cols-2 gap-6">
+            <div class="bg-white dark:bg-gray-800 rounded-xl shadow p-6">
+                <h3 class="text-lg font-semibold mb-4">User Growth</h3>
+                <canvas id="userChart" height="300"></canvas>
+            </div>
+            <div class="bg-white dark:bg-gray-800 rounded-xl shadow p-6">
+                <h3 class="text-lg font-semibold mb-4">Revenue Sources</h3>
+                <canvas id="revenueChart" height="300"></canvas>
+            </div>
+            <div class="bg-white dark:bg-gray-800 rounded-xl shadow p-6">
+                <h3 class="text-lg font-semibold mb-4">Performance Metrics</h3>
+                <canvas id="performanceChart" height="300"></canvas>
+            </div>
+            <div class="bg-white dark:bg-gray-800 rounded-xl shadow p-6">
+                <h3 class="text-lg font-semibold mb-4">Activity Timeline</h3>
+                <canvas id="activityChart" height="300"></canvas>
+            </div>
+        </div>
+    </main>
+
+    <script src="components/navbar.js"></script>
+    <script src="components/metrics-card.js"></script>
+    <script src="script.js"></script>
+    <script>
+        feather.replace();
+    </script>
+<script src="https://huggingface.co/deepsite/deepsite-badge.js"></script>
+</body>
+</html>

script.js

@@ -0,0 +1,193 @@
+// Initialize charts
+let userChart, revenueChart, performanceChart, activityChart;
+
+document.addEventListener('DOMContentLoaded', () => {
+    setupCharts();
+    startDataUpdates();
+});
+
+function setupCharts() {
+    const chartOptions = {
+        responsive: true,
+        maintainAspectRatio: false,
+        plugins: {
+            legend: {
+                position: 'top',
+                labels: {
+                    color: window.matchMedia('(prefers-color-scheme: dark)').matches ? '#fff' : '#000'
+                }
+            }
+        },
+        scales: {
+            y: {
+                beginAtZero: true,
+                grid: {
+                    color: window.matchMedia('(prefers-color-scheme: dark)').matches ? 'rgba(255, 255, 255, 0.1)' : 'rgba(0, 0, 0, 0.1)'
+                },
+                ticks: {
+                    color: window.matchMedia('(prefers-color-scheme: dark)').matches ? '#fff' : '#000'
+                }
+            },
+            x: {
+                grid: {
+                    color: window.matchMedia('(prefers-color-scheme: dark)').matches ? 'rgba(255, 255, 255, 0.1)' : 'rgba(0, 0, 0, 0.1)'
+                },
+                ticks: {
+                    color: window.matchMedia('(prefers-color-scheme: dark)').matches ? '#fff' : '#000'
+                }
+            }
+        }
+    };
+
+    // User Growth Chart
+    const userCtx = document.getElementById('userChart').getContext('2d');
+    userChart = new Chart(userCtx, {
+        type: 'line',
+        data: {
+            labels: Array.from({length: 12}, (_, i) => `${i+1}AM`),
+            datasets: [{
+                label: 'Active Users',
+                data: Array(12).fill(0).map(() => Math.floor(Math.random() * 5000)),
+                borderColor: '#6366f1',
+                backgroundColor: 'rgba(99, 102, 241, 0.1)',
+                tension: 0.4,
+                fill: true
+            }]
+        },
+        options: chartOptions
+    });
+
+    // Revenue Chart
+    const revenueCtx = document.getElementById('revenueChart').getContext('2d');
+    revenueChart = new Chart(revenueCtx, {
+        type: 'doughnut',
+        data: {
+            labels: ['Subscriptions', 'Ads', 'Merchandise', 'Services'],
+            datasets: [{
+                data: [35, 25, 20, 20].map(v => v + Math.floor(Math.random() * 10 - 5)),
+                backgroundColor: [
+                    '#6366f1',
+                    '#8b5cf6',
+                    '#ec4899',
+                    '#f43f5e'
+                ],
+                borderWidth: 0
+            }]
+        },
+        options: {
+            ...chartOptions,
+            cutout: '70%'
+        }
+    });
+
+    // Performance Chart
+    const performanceCtx = document.getElementById('performanceChart').getContext('2d');
+    performanceChart = new Chart(performanceCtx, {
+        type: 'bar',
+        data: {
+            labels: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'],
+            datasets: [
+                {
+                    label: 'Page Load (ms)',
+                    data: Array(7).fill(0).map(() => 100 + Math.floor(Math.random() * 300)),
+                    backgroundColor: '#6366f1'
+                },
+                {
+                    label: 'API Response (ms)',
+                    data: Array(7).fill(0).map(() => 50 + Math.floor(Math.random() * 150)),
+                    backgroundColor: '#8b5cf6'
+                }
+            ]
+        },
+        options: chartOptions
+    });
+
+    // Activity Chart
+    const activityCtx = document.getElementById('activityChart').getContext('2d');
+    activityChart = new Chart(activityCtx, {
+        type: 'line',
+        data: {
+            labels: Array.from({length: 24}, (_, i) => i),
+            datasets: [
+                {
+                    label: 'API Calls',
+                    data: Array(24).fill(0).map((_, i) => {
+                        const base = 500;
+                        const hourFactor = Math.sin((i / 24) * Math.PI * 2) * 200;
+                        const noise = Math.random() * 100 - 50;
+                        return Math.max(0, base + hourFactor + noise);
+                    }),
+                    borderColor: '#6366f1',
+                    backgroundColor: 'rgba(99, 102, 241, 0.1)',
+                    tension: 0.3,
+                    fill: true
+                }
+            ]
+        },
+        options: chartOptions
+    });
+}
+
+function startDataUpdates() {
+    // Update metric cards every 3 seconds
+    setInterval(() => {
+        const cards = document.querySelectorAll('metrics-card');
+        
+        // Active Users
+        const users = 5000 + Math.floor(Math.random() * 1000 - 500);
+        const userChange = Math.floor(Math.random() * 10 - 5);
+        cards[0].setAttribute('value', users.toLocaleString());
+        cards[0].setAttribute('change', userChange);
+        
+        // Conversion Rate
+        const conversion = (2 + Math.random()).toFixed(2);
+        const conversionChange = (Math.random() * 0.5 - 0.25).toFixed(2);
+        cards[1].setAttribute('value', conversion + '%');
+        cards[1].setAttribute('change', conversionChange);
+        
+        // API Latency
+        const latency = Math.floor(50 + Math.random() * 50);
+        const latencyChange = Math.floor(Math.random() * 10 - 5);
+        cards[2].setAttribute('value', latency + 'ms');
+        cards[2].setAttribute('change', latencyChange);
+        
+        // Revenue Today
+        const revenue = Math.floor(10000 + Math.random() * 5000);
+        const revenueChange = Math.floor(Math.random() * 10 - 5);
+        cards[3].setAttribute('value', '$' + revenue.toLocaleString());
+        cards[3].setAttribute('change', revenueChange);
+        
+        // Update charts with new data points
+        updateCharts();
+    }, 3000);
+}
+
+function updateCharts() {
+    // User Chart - add new point and remove oldest
+    const userData = userChart.data.datasets[0].data;
+    userData.shift();
+    userData.push(Math.floor(Math.random() * 5000));
+    userChart.update();
+    
+    // Revenue Chart - update values with slight variations
+    revenueChart.data.datasets[0].data = [35, 25, 20, 20].map(v => v + Math.floor(Math.random() * 10 - 5));
+    revenueChart.update();
+    
+    // Performance Chart - update with new random values
+    performanceChart.data.datasets[0].data = Array(7).fill(0).map(() => 100 + Math.floor(Math.random() * 300));
+    performanceChart.data.datasets[1].data = Array(7).fill(0).map(() => 50 + Math.floor(Math.random() * 150));
+    performanceChart.update();
+    
+    // Activity Chart - shift data and add new point
+    const activityData = activityChart.data.datasets[0].data;
+    activityData.shift();
+    const lastValue = activityData[activityData.length - 1];
+    activityData.push(Math.max(0, lastValue + (Math.random() * 100 - 50)));
+    activityChart.update();
+}
+
+// Handle dark mode changes
+window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', e => {
+    document.documentElement.classList.toggle('dark', e.matches);
+    setupCharts();
+});

style.css

@@ -1,28 +1,32 @@
-body {
-	padding: 2rem;
-	font-family: -apple-system, BlinkMacSystemFont, "Arial", sans-serif;
+@keyframes pulse {
+    0%, 100% { opacity: 1; }
+    50% { opacity: 0.5; }
 }
 
-h1 {
-	font-size: 16px;
-	margin-top: 0;
+.loading {
+    animation: pulse 1.5s cubic-bezier(0.4, 0, 0.6, 1) infinite;
 }
 
-p {
-	color: rgb(107, 114, 128);
-	font-size: 15px;
-	margin-bottom: 10px;
-	margin-top: 5px;
+.change-positive {
+    color: #10b981;
 }
 
-.card {
-	max-width: 620px;
-	margin: 0 auto;
-	padding: 16px;
-	border: 1px solid lightgray;
-	border-radius: 16px;
+.change-negative {
+    color: #ef4444;
 }
 
-.card p:last-child {
-	margin-bottom: 0;
+.change-neutral {
+    color: #64748b;
 }
+
+.dark .change-positive {
+    color: #34d399;
+}
+
+.dark .change-negative {
+    color: #f87171;
+}
+
+.dark .change-neutral {
+    color: #94a3b8;
+}