styles.css

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

      body {
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
          sans-serif;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        min-height: 100vh;
        padding: 40px 20px;
        color: #333;
      }

      .container {
        max-width: 900px;
        margin: 0 auto;
      }

      h1 {
        color: white;
        text-align: center;
        font-size: 2.5rem;
        font-weight: 600;
        margin-bottom: 40px;
        text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
      }

      .video-section {
        background: white;
        border-radius: 20px;
        padding: 30px;
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
        margin-bottom: 30px;
      }

      .status {
        background: #e3f2fd;
        color: #1976d2;
        padding: 12px 20px;
        border-radius: 8px;
        text-align: center;
        margin-bottom: 20px;
        font-weight: 500;
        transition: background-color 0.3s ease;
      }

      .status.error {
        background: #ffebee;
        color: #c62828;
      }

      .status.success {
        background: #e8f5e8;
        color: #2e7d32;
      }

      .video-container {
        position: relative;
        width: 100%;
        margin: 0 auto 20px auto;
        background: #000000;
        border-radius: 12px;
        overflow: hidden;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        height: auto;
      }

      .video-container .cld-video-player,
      .video-container video {
        width: 100% !important;
        height: 100% !important;
        display: block;
        object-fit: contain;
      }

      .controls {
        text-align: center;
        padding: 20px 0;
      }

      .controls label {
        font-weight: 500;
        color: #555;
        margin-right: 10px;
        vertical-align: middle;
      }

      .controls select {
        padding: 10px 15px;
        border: 2px solid #e0e0e0;
        border-radius: 8px;
        background: white;
        font-size: 1rem;
        cursor: pointer;
        transition: border-color 0.3s ease, box-shadow 0.3s ease;
        vertical-align: middle;
      }

      .controls select:focus {
        outline: none;
        border-color: #667eea;
        box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.3);
      }

      .product-info {
        background: #f8f9fa;
        border-radius: 12px;
        padding: 20px;
        margin-top: 20px;
      }

      .product-info h3 {
        color: #333;
        margin-bottom: 15px;
        font-size: 1.2rem;
      }

      .product-list {
        list-style: none;
        padding: 0;
      }

      .product-item {
        background: white;
        border-radius: 8px;
        padding: 15px;
        margin-bottom: 10px;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        display: flex;
        justify-content: space-between;
        align-items: center;
      }

      .product-details h4 {
        color: #333;
        margin-bottom: 5px;
      }

      .product-price {
        font-weight: bold;
        color: #2e7d32;
      }

      .product-price .compare-price {
        text-decoration: line-through;
        color: #999;
        margin-right: 10px;
      }

      .product-status {
        font-size: 0.9rem;
        padding: 4px 8px;
        border-radius: 4px;
      }

      .product-status.in-stock {
        background: #e8f5e8;
        color: #2e7d32;
      }

      .product-status.out-of-stock {
        background: #ffebee;
        color: #c62828;
      }

      .info-section {
        background: white;
        border-radius: 15px;
        padding: 25px;
        box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
      }

      .info-section h2 {
        color: #333;
        margin-bottom: 15px;
        font-size: 1.5rem;
        border-bottom: 1px solid #eee;
        padding-bottom: 10px;
      }

      .info-section p {
        color: #666;
        line-height: 1.6;
        margin-bottom: 10px;
      }

      .feature-list {
        list-style: none;
        margin-top: 15px;
        padding-left: 0;
      }

      .feature-list li {
        color: #555;
        padding: 10px 0;
        border-bottom: 1px solid #f0f0f0;
        display: flex;
        align-items: center;
      }

      .feature-list li:last-child {
        border-bottom: none;
      }

      .feature-list li::before {
        content: "✓";
        color: #4caf50;
        font-weight: bold;
        font-size: 1.1em;
        margin-right: 12px;
      }

      @media (max-width: 768px) {
        body {
          padding: 20px 15px;
        }

        h1 {
          font-size: 2rem;
        }

        .video-section {
          padding: 20px;
        }

        .controls {
          display: flex;
          flex-direction: column;
          align-items: center;
        }

        .controls label {
          margin-bottom: 8px;
          margin-right: 0;
        }

        .controls select {
          width: 100%;
          max-width: 300px;
        }

        .product-item {
          flex-direction: column;
          align-items: flex-start;
        }

        .product-details {
          margin-bottom: 10px;
        }
      }

      @media (min-width: 769px) {
        .video-container.landscape {
          max-width: 700px;
        }
      }
    </style>