@media (min-width: 768px) {
  body {
    position: relative;
    margin: 0;
    min-width: 300px;
    font-family: Arial, sans-serif;
  }

  .header-content {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    min-width: 300px;
    padding: 10px 0 10px 0;
    background-color: #004d73;
    display: flex;
    flex-direction: row;
    align-items: center;
    border-bottom: 5px solid #0fdbf9;
    z-index: 999;
  }

  .header-logo {
    display: block;
    margin: 0 0 0 20px;
    border-radius: 10px;
    position: relative;
    z-index: 1;
    width: 180px;
    height: 180px;
  }

  .header-image {
    position: absolute;
    top: 0;
    right: 10px;
    width: 50%;
    max-width: 1000px;
    z-index: 2;
    border-top-right-radius: 15px;
    border-bottom-left-radius: 15px;
  }

  .over-ons-image {
    position: absolute;
    bottom: 0;
    right: 15%;
    width: 30%;
    max-width: 450px;
    border-radius: 10px;
    z-index: 1;
  }

  .main {
    position: relative;
    padding: 5px 20px 10px;
    background-color: #cce7f5;
    margin: 210px 10px 10px;
    border-radius: 15px;
  }

  .main-content {
    width: 45%;
    min-width: 300px;
    margin-left: 0;
    padding: 0 20px;
  }

  .main h2 {
    color: #333;
  }

  .contact-form {
    margin-top: 20px;
  }

  .form-group {
    margin-bottom: 20px;
  }

  .form-group label {
    display: block;
    margin-bottom: 5px;
    color: #333;
    font-weight: bold;
  }

  .form-group input {
    max-width: 400px;
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 1rem;
    font-family: Arial, sans-serif;
    box-sizing: border-box;
  }

  .form-group textarea {
    max-width: 800px;
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 1rem;
    font-family: Arial, sans-serif;
    box-sizing: border-box;
  }

  .form-group input:focus,
  .form-group textarea:focus {
    outline: none;
    border-color: #0fdbf9;
  }

  .submit-btn {
    background-color: #004d73;
    color: #fff;
    padding: 12px 30px;
    border: none;
    border-radius: 6px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: background-color 0.3s;
  }

  .submit-btn:hover {
    background-color: #0fdbf9;
    color: #004d73;
  }

  footer {
    background-color: #004d73;
    color: #fff;
    text-align: center;
    padding: 10px 0;
    font-size: 1rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    line-height: 1.7;
    border-top: 5px solid #0fdbf9;
    z-index: 999;
  }

  footer br {
    display: block;
    margin: 8px 0;
  }
}