html, body {
      height: 100%;
      margin: 0;
      padding: 0;
      font-family: 'Inter', sans-serif;
      background-color: #f7f7f7;
      color: #333;
      font-size: 18px;
      overflow: hidden;
    }

    header {
      background-color: #fff;
      border-bottom: 1px solid #ddd;
      padding: 10px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .container {
      padding: 10px 20px;
      max-width: 1000px;
      margin: 0 auto;
      height: calc(100% - 110px);
      display: flex;
      flex-direction: column;
      gap: 10px;
      box-sizing: border-box;
    }

    .search-area {
      display: flex;
      gap: 10px;
    }

    .search-area input {
      flex: 1;
      padding: 10px;
      font-size: 16px;
      border: 1px solid #ccc;
      border-radius: 8px;
    }

    .search-area button {
      padding: 10px 16px;
      font-size: 16px;
      background-color: #0070f3;
      color: white;
      border: none;
      border-radius: 8px;
      cursor: pointer;
    }

    table {
      width: 100%;
      border-collapse: collapse;
      background-color: white;
      border-radius: 8px;
      overflow: hidden;
      flex: 1;
    }

    thead {
      background-color: #fafafa;
    }

    th, td {
      padding: 10px;
      border-bottom: 1px solid #eee;
      text-align: left;
      font-size: 16px;
    }

    tbody {
      display: block;
      max-height: 200px;
      overflow-y: auto;
    }

    thead, tbody tr {
      display: table;
      width: 100%;
      table-layout: fixed;
    }

    .cart-actions,
    .payment-options,
    .finalize {
      flex-shrink: 0;
    }

    .cart-actions {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .cart-actions button {
      padding: 8px 12px;
      background-color: #e53935;
      color: white;
      border: none;
      border-radius: 6px;
      font-size: 14px;
      cursor: pointer;
    }

    .payment-options select,
    .payment-options input {
      padding: 8px;
      font-size: 16px;
      width: 100%;
      border-radius: 8px;
      border: 1px solid #ccc;
      margin-top: 5px;
    }

    .finalize {
      text-align: center;
    }

    .finalize button {
      padding: 12px 24px;
      font-size: 18px;
      background-color: #28a745;
      color: white;
      border: none;
      border-radius: 10px;
      cursor: pointer;
    }

    .footer-buttons {
      display: flex;
      justify-content: center;
      gap: 10px;
      margin-top: 10px;
    }

    .footer-buttons button {
      padding: 10px 16px;
      font-size: 14px;
      background-color: #555;
      color: white;
      border: none;
      border-radius: 6px;
      cursor: pointer;
    }

    .fullscreen-toggle {
      position: absolute;
      top: 10px;
      right: 10px;
      font-size: 12px;
      background-color: #444;
      color: #fff;
      padding: 6px 10px;
      border: none;
      border-radius: 6px;
      cursor: pointer;
      z-index: 999;
    }