Animated Horizontal Bar Chart

<script type="module" src="https://unpkg.com/ionicons@7.1.0/dist/ionicons/ionicons.esm.js"></script>
<script nomodule src="https://unpkg.com/ionicons@7.1.0/dist/ionicons/ionicons.js"></script>

<div class="container">
  <div class="chart-card">
    <div class="chart-header">
      <div class="chart-title">
        <ion-icon name="bar-chart-outline"></ion-icon>
        <h2>Sales Performance</h2>
      </div>
      <div class="chart-controls">
        <button class="btn" onclick="animateChart()">
          <ion-icon name="refresh-outline"></ion-icon>
          Animate
        </button>
        <button class="btn" onclick="randomizeData()">
          <ion-icon name="shuffle-outline"></ion-icon>
          Randomize
        </button>
      </div>
    </div>

    <p class="chart-subtitle">Q4 2024 Performance by Product Category</p>

    <div class="chart-content" id="chartContent">
      <!-- Bars will be inserted here -->
    </div>

    <div class="stats-grid">
      <div class="stat-card">
        <div class="stat-value" id="totalValue">0</div>
        <div class="stat-label">Total Sales</div>
      </div>
      <div class="stat-card">
        <div class="stat-value" id="avgValue">0</div>
        <div class="stat-label">Average</div>
      </div>
      <div class="stat-card">
        <div class="stat-value" id="maxValue">0</div>
        <div class="stat-label">Highest</div>
      </div>
    </div>

    <div class="legend">
      <div class="legend-color"></div>
      <span>Sales in thousands (K)</span>
    </div>
  </div>
</div>

 <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            padding: 2rem;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .container {
            width: 100%;
            max-width: 900px;
        }

        .chart-card {
            background: white;
            padding: 2.5rem;
            border-radius: 20px;
            box-shadow: 0 20px 60px rgba(58, 1, 92, 0.3);
        }

        .chart-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2rem;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .chart-title {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .chart-title ion-icon {
            font-size: 2rem;
            color: #3a015c;
        }

        .chart-title h2 {
            color: #3a015c;
            font-size: 1.75rem;
            font-weight: 600;
        }

        .chart-controls {
            display: flex;
            gap: 0.5rem;
        }

        .btn {
            background: #3a015c;
            color: white;
            border: none;
            padding: 0.625rem 1.25rem;
            border-radius: 8px;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn:hover {
            background: #5a0190;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(58, 1, 92, 0.3);
        }

        .btn ion-icon {
            font-size: 1.125rem;
        }

        .chart-subtitle {
            color: #6c757d;
            font-size: 0.925rem;
            margin-bottom: 2rem;
        }

        .chart-content {
            margin-top: 2rem;
        }

        .bar-item {
            margin-bottom: 2rem;
        }

        .bar-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.5rem;
        }

        .label-name {
            font-weight: 500;
            color: #2c3e50;
            font-size: 0.95rem;
        }

        .label-value {
            font-weight: 600;
            color: #3a015c;
            font-size: 0.95rem;
        }

        .bar-track {
            background: #f0f0f0;
            height: 32px;
            border-radius: 16px;
            overflow: hidden;
            position: relative;
        }

        .bar-fill {
            height: 100%;
            background: linear-gradient(90deg, #3a015c, #6a2c91);
            border-radius: 16px;
            width: 0;
            transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            justify-content: flex-end;
            padding-right: 1rem;
            color: white;
            font-size: 0.875rem;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(58, 1, 92, 0.3);
        }

        .bar-fill.animated {
            animation: pulse 2s ease-in-out;
        }

        @keyframes pulse {
            0%, 100% {
                box-shadow: 0 2px 8px rgba(58, 1, 92, 0.3);
            }
            50% {
                box-shadow: 0 4px 16px rgba(58, 1, 92, 0.5);
            }
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 1rem;
            margin-top: 2rem;
            padding-top: 2rem;
            border-top: 2px solid #f0f0f0;
        }

        .stat-card {
            text-align: center;
            padding: 1rem;
            background: #f8f9fa;
            border-radius: 12px;
        }

        .stat-value {
            font-size: 1.75rem;
            font-weight: 700;
            color: #3a015c;
            margin-bottom: 0.25rem;
        }

        .stat-label {
            font-size: 0.825rem;
            color: #6c757d;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .legend {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: #6c757d;
            font-size: 0.875rem;
            margin-top: 1.5rem;
        }

        .legend-color {
            width: 20px;
            height: 20px;
            background: linear-gradient(90deg, #3a015c, #6a2c91);
            border-radius: 4px;
        }
    </style>

  const chartData = [
    { name: 'Electronics', value: 85 },
    { name: 'Clothing', value: 72 },
    { name: 'Home & Garden', value: 64 },
    { name: 'Sports', value: 58 },
    { name: 'Books', value: 45 },
    { name: 'Toys', value: 38 }
  ];

  function renderChart(animate = true) {
    const chartContent = document.getElementById('chartContent');
    const maxValue = Math.max(...chartData.map(d => d.value));

    chartContent.innerHTML = '';

    chartData.forEach((item, index) => {
      const barItem = document.createElement('div');
      barItem.className = 'bar-item';

      const percentage = (item.value / maxValue) * 100;

      barItem.innerHTML = `
                        <div class="bar-label">
                            <span class="label-name">${item.name}</span>
                            <span class="label-value">${item.value}K</span>
  </div>
                        <div class="bar-track">
                            <div class="bar-fill ${animate ? 'animated' : ''}" style="width: 0%"></div>
  </div>
                    `;

      chartContent.appendChild(barItem);

      if (animate) {
        setTimeout(() => {
          const barFill = barItem.querySelector('.bar-fill');
          barFill.style.width = percentage + '%';
        }, index * 150);
      }
    });

    updateStats();
  }

  function updateStats() {
    const total = chartData.reduce((sum, item) => sum + item.value, 0);
    const avg = Math.round(total / chartData.length);
    const max = Math.max(...chartData.map(d => d.value));

    animateValue('totalValue', 0, total, 1500);
    animateValue('avgValue', 0, avg, 1500);
    animateValue('maxValue', 0, max, 1500);
  }

  function animateValue(id, start, end, duration) {
    const element = document.getElementById(id);
    const range = end - start;
    const increment = range / (duration / 16);
    let current = start;

    const timer = setInterval(() => {
      current += increment;
      if (current >= end) {
        current = end;
        clearInterval(timer);
      }
      element.textContent = Math.round(current) + 'K';
    }, 16);
  }

  function animateChart() {
    renderChart(true);
  }

  function randomizeData() {
    chartData.forEach(item => {
      item.value = Math.floor(Math.random() * 70) + 30;
    });
    chartData.sort((a, b) => b.value - a.value);
    renderChart(true);
  }

  // Initial render
  renderChart(true);