* {
    box-sizing: border-box;
  }

  body {
    margin: 0;
    padding: 0;
    font-family: "Roboto", "Open Sans", "Helvetica Neue", sans-serif;
    background-image: url('https://mcusercontent.com/dacbe68074cece4d07a7a37ed/images/e3d5998a-bc82-7559-97e0-b1dff529ccd8.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
  }
  .logo-container {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
  }

  .logo-container img {
    max-width: 160px;
    height: auto;
    display: block;
  }
  .logo-holder{
    margin-top: -10px;
    border-bottom: 1px dashed #aaa;
    padding-bottom: 15px;
    margin-bottom: 25px;
  }
  .logo-holder img{
    max-height: 30px;
  }
  .overlay {
    background-color: rgba(255, 255, 255, 0.85);
    padding: 40px;
    max-width: 800px;
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
    animation: fadeInUp 1s ease-out;
  }

  h2 {
    text-align: center;
    color: #222;
    font-size: 26px;
    margin-bottom: 24px;
  }

  h2,
  h3 {
    color: #222;
  }

  table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    text-align: left;
    border: 1px solid #ccc;
    border-radius: 12px;
    overflow: hidden;
  }

  th,
  td {
    border-bottom: 1px solid #ccc;
    padding: 10px 12px;
    background-color: #FFF;
  }

  th {
    color: #FFF;
    font-weight: bold;
    background: #cf211b;
    background: -webkit-linear-gradient(rgba(207, 33, 27, 1) 0%, rgba(189, 28, 23, 1) 100%);
    background: -o-linear-gradient(rgba(207, 33, 27, 1) 0%, rgba(189, 28, 23, 1) 100%);
    background: linear-gradient(rgba(207, 33, 27, 1) 0%, rgba(189, 28, 23, 1) 100%);
  }
  th p{color:#FFF;margin: 5px 0;}

  /* Bo góc riêng cho 4 ô đầu/cuối */
  thead th:first-child {
    border-top-left-radius: 12px;
  }

  thead th:last-child {
    border-top-right-radius: 12px;
  }

  tbody tr:last-child td:first-child {
    border-bottom-left-radius: 12px;
  }

  tbody tr:last-child td:last-child {
    border-bottom-right-radius: 12px;
  }

  td:nth-child(3) {}

  p, li {
    font-size: 17px;
    color: #333;
    line-height: 1.4;
  }

  .highlight {
    color: #d32f2f;
    font-weight: 500;
  }

  iframe{
    border-radius: 4px;
    box-shadow: 0px 5px 30px rgb(0 0 0 / 10%), 0px 1px 4px rgb(0 0 0 / 5%);
  }

  .button-container {
    text-align: center;
    margin-top: 30px;
  }

  .button {
    background-color: #d32f2f;
    color: white;
    font-size: 18px;
    padding: 14px 28px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    text-transform: uppercase;
    font-weight: bold;
    transition: all 0.3s ease;
  }

  .button:hover {
    background-color: #b71c1c;
    transform: scale(1.05);
  }

  @keyframes fadeInUp {
    0% {
      opacity: 0;
      transform: translateY(40px);
    }
    100% {
      opacity: 1;
      transform: translateY(0);
    }
  }

  @media (max-width: 600px) {
    .overlay {
      padding: 24px;
    }

    h2 {
      font-size: 22px;
    }

    p {
      font-size: 16px;
    }

    .button {
      font-size: 16px;
      padding: 12px 24px;
    }
  }