body {
      margin: 0;
      font-family: sans-serif;
      overflow-x: hidden;
    }

    section {
      padding: 4rem 2rem;
      box-sizing: border-box;
    }

    h2 {
      margin-bottom: 1rem;
    }

    table {
      width: 100%;
      border-collapse: collapse;
      background: #fff;
      color: #222;
    }

    td {
      padding: 0.5rem;
      border-bottom: 1px solid #ddd;
    }

    .callouts {
      display: flex;
      justify-content: center;
      gap: 3rem;
      margin-top: 2rem;
      flex-wrap: wrap;
    }

    .callouts div {
      text-align: center;
    }

    .components {
      display: flex;
      flex-wrap: wrap;
      gap: 2rem;
      justify-content: center;
    }

    .components.vertical {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 3rem;
    }

    .component {
      max-width: 600px;
      width: 100%;
    }

    .component {
      flex: 1 1 30%;
      text-align: center;
    }

    .component img {
      width: 100%;
      max-height: 200px;
      object-fit: contain;
    }

    .cta {
      background: #222;
      color: #fff;
      text-align: center;
    }

    .cta button {
      padding: 1rem 2rem;
      font-size: 1.2rem;
      margin-top: 1rem;
      cursor: pointer;
    }

    .hero {
      height: 100vh;
      background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)),
        url('https://placehold.co/1200x800/333/fff?text=System+Design') no-repeat center/cover;
      display: flex;
      justify-content: center;
      align-items: center;
      color: #fff;
      font-size: 2.5rem;
      font-weight: bold;
      text-shadow: 0 0 10px #000;
    }

    .ground {
      background: #b8d37d;
      bottom: 0;
      height: 20%;
      left: 0;
      position: absolute;
      right: 0;
    }

    canvas {
      background-image: linear-gradient(0deg, #383e97, #120079);
      display: block;
      position: absolute;
      top: 0;
      height: 80%;
      width: 100%;
    }

    .odometer-digit {
      position: relative;
      height: 2rem;
      overflow: hidden;
      width: 1ch;
      display: inline-block;
      font-family: monospace;
    }

    .odometer-digit-inner {
      position: absolute;
      top: 0;
      left: 0;
      transition: transform 0.3s ease-out;
    }

    .odometer-digit-inner>div {
      height: 2rem;
      line-height: 2rem;
      text-align: center;
    }

    .checklist li {
        opacity: 0;
        transform: translateX(-20px);
        margin: 1rem 0;
        font-size: 1rem;
        display: flex;
        align-items: flex-start;
      }
      
      .checklist li::before {
        content: '✔️';
        margin-right: 0.5rem;
        font-size: 1.2rem;
        line-height: 1.4;
        flex-shrink: 0;
        color: #22c55e;
      }
      
      .checklist li[data-status="pending"]::before {
        content: '❓';
        color: #f97316;
      }
      
      .item-content {
        display: flex;
        flex-direction: column;
      }
      
      .item-content strong {
        font-size: 1.1rem;
        margin-bottom: 0.25rem;
      }
      
      .item-content .desc {
        font-size: 0.9rem;
        color: #444;
        line-height: 1.4;
      }
      
    .bar-chart-container {
        max-width: 800px;
        margin: 2rem auto;
        text-align: center;
      }
      
      .bar-chart-grid {
        display: flex;
        align-items: flex-end;
        height: 200px;
        gap: 1rem;
        margin-bottom: 1rem;
      }
      
      .bar-chart-y-axis {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        height: 100%;
        font-size: 0.8rem;
        text-align: right;
        padding-right: 0.5rem;
        color: #444;
      }
      
      .bar-chart {
        display: flex;
        align-items: flex-end;
        gap: 2rem;
        height: 100%;
      }
      
      .bar-group {
        display: flex;
        flex-direction: column;
        align-items: center;
        width: 40px;
        gap: 0.25rem;
      }
      
      .bar-wrapper {
        display: flex;
        gap: 4px;
        align-items: flex-end;
        height: 100%;
      }
      
      .bar-before,
      .bar-after {
        width: 14px;
        height: 0;
        border-radius: 4px 4px 0 0;
        transition: height 0.4s ease;
      }
      
      .bar-before {
        background-color: #ef4444;
      }
      
      .bar-after {
        background-color: #22c55e;
      }
      
      .month-label {
        font-size: 0.85rem;
        text-align: center;
        margin-top: 0.3rem;
      }
      
      .percentage-label {
        font-size: 0.8rem;
        color: #0f766e;
        font-weight: 600;
        margin-bottom: 0.25rem;
        opacity: 0;
        transform: translateY(10px);
        transition: all 0.3s ease;
      }
      
      .bar-chart-legend {
        margin-top: 1rem;
        display: flex;
        justify-content: center;
        gap: 2rem;
      }
      
      .legend {
        display: inline-block;
        width: 1rem;
        height: 1rem;
        border-radius: 2px;
        margin-right: 0.25rem;
        vertical-align: middle;
      }
      
      .legend.before {
        background-color: #ef4444;
      }
      
      .legend.after {
        background-color: #22c55e;
      }
      .components.vertical {
        display: flex;
        flex-direction: column;
        gap: 3rem;
        max-width: 800px;
        margin: 2rem auto;
      }
      
      .component {
        display: flex;
        flex-direction: column;
        align-items: center;
        text-align: center;
      }
      
      .component-photo {
        width: 100%;
        max-width: 600px;
        border-radius: 6px;
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
      }
      
      .component-info {
        margin-top: 1rem;
      }
      
      .component-info h4 {
        margin-bottom: 0.5rem;
        font-size: 1.4rem;
      }
      
      .features {
        list-style-type: disc;
        padding-left: 1.2rem;
        text-align: left;
        margin: 0.5rem auto 1rem auto;
        max-width: 400px;
        color: #444;
        font-size: 0.95rem;
      }
      
      .datasheet {
        text-decoration: underline;
        font-size: 0.9rem;
        color: #0f766e;
      }