html, body {
      height: 100%;
      margin: 0;
      display: flex;
      flex-direction: column;
    }
    
    body {
      font-family: Arial, sans-serif;
      text-align: center;
      margin: 70px 20px 0px 20px;
      line-height: 25px;
      background-color: #041f33;
      color: #e7eff5;
      padding-bottom: 100px;
    }
    
    main {
      flex: 1;
      margin-bottom: 50px;
    }
   
    .social-links {
      display: flex;
      justify-content: center;
      margin: 20px 0;  
    }
    
    .social-links a {
      margin: 0 10px;  
    }
    
    .social-logo {
      width: 30px;  
      height: 30px;
    } 
    
    h4 {
      color: #b8c6d0;
    }
    
    hr {
      display: block;
      border: none;        
      height: 1px;         
      background-color: #ffffff;  
      width: 50%;         
      margin: 10px auto 10px auto;
      border-radius: 2px;
      flex:0 0 auto;
    }
    
    p {
      text-align: left;
      line-height: 2;
      margin: 0 auto;
      max-width: 700px;
    } 
    
    ul {
      list-style-type: disc;
      line-height: 2;
      text-align: left;
      max-width: 700px;
      margin: 0 auto;
    }
    
    .navbar ul{
      display: inline-block;
      list-style-type: none;
      margin: 0;
      padding: 0;
      overflow: hidden;
      background-color: #001327;
      font-size: 14px;
    }
    
    
    li {
      float: left;
    }
    
    li a {
      color: white;
      display: block;
      text-align: center;
      padding: 14px 16px;
      text-decoration: none;
      transition: background-color 0.5s ease-in-out;
    }
    
    li a:hover {
      background-color: #012954;
    }
    
    a:link {
      color: white;
    }
    
    details {
      margin: 10px auto;
      max-width: 700px;
      width: 100%;
      display: block;
      clear: both; 
    }
    
    details summary {
      list-style: none;
      background-color: #001327;
      color: white;
      padding: 14px 16px;
      cursor: pointer;
      margin: 10px auto;
      max-width: 700px;
      border-radius: 4px;
      transition: background-color 0.5s ease-in-out;
      display: block;
    }
    
    details summary::-webkit-details-marker {
      display: none;
    }
    details summary::marker {
      display: none;
    }
    
    details summary:hover {
      background-color: #012954;
    }
    
    details[open] ul {
      display: block;
    }
    
    details ul {
      list-style-type: disc;
      list-style-position: inside; 
      padding: 5px 20px 10px 20px; 
      margin: 0 auto 15px auto;
      background-color: #041f33;
      max-width: 700px;
      width: 100%;
      box-sizing: border-box;
    }
   
    
    details ul li:last-child {
      padding-bottom: 20px; 
    }

    .footer {
      margin: auto;
      text-align: center;
      padding: 20px 0;
      color: #e7eff5;
    }
    
    .container {
      max-width: 500px;
      margin: 0 auto 50px;
      text-align: left;
    }
    
    .container h1 {
      text-align: center;
      margin-bottom: 20px;
    }
    
    .form-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    
    .form-row .col {
      flex: 1 1 100%;
    }
    
    input[type="text"],
    input[type="email"],
    textarea {
      width: 100%;
      padding: 12px;
      margin-bottom: 15px;
      border-radius: 4px;
      border: none;
      background-color: #012954;
      color: #e7eff5;
      font-size: 14px;
    }
    
    textarea {
      height: 200px; 
      resize: vertical;
    }
    
    button[type="submit"] {
      display: block;
      width: 100%;
      padding: 12px;
      background-color: #001327;
      color: #e7eff5;
      border: none;
      border-radius: 4px;
      font-size: 16px;
      cursor: pointer;
      transition: background-color 0.3s ease;
    }
    
    button[type="submit"]:hover {
      background-color: #012954;
    }
    
    #form-message {
      text-align: center;
      color: #00ff88;
      font-weight: bold;
      margin-top: 15px;
    }
    
    @media(min-width: 600px) {
      .form-row .col {
        flex: 1; 
      }
    }