body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    margin: 0;
    padding: 0;
}

.container {
    width: 80%;
    height: 100%;
    margin: 0 auto;
    padding: 20px;
    background-color: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
}

button {
    display: inline-block;
    background-color: #3cbe3c;
    color: white;
    padding: 8px 14px;
    font-size: 12px;
    border: none;
    cursor: pointer;
    margin-right: 5px;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #149214;
}

button:disabled {
    background-color: #6c757d;
    cursor: not-allowed;
}

  
  .chat-container {
    margin-top: 10px;
    display: flex;
    flex-direction: column;
    height: 65vh;
    margin-bottom: 16px;
    border: 1px solid #ccc;
    border-radius: 8px;
  }
  
  .chat-history {
    flex-grow: 1;
    overflow-y: auto;
    padding: 16px;
  }


  .chat-sender {
    clear: both;
    font-size: 120%;
  }
  
  .chat-sender div:nth-of-type(1) {
    background-color: #dcf5f0;
    float: left;
    margin: 5px 5px 5px 5px;
    padding: 2px 2px 2px 2px;
    border-radius: 7px;
    /* text-indent: -12px; */
  }
  
  .chat-receiver {
    clear: both;
    font-size: 120%;
  }
  
  .chat-receiver div:nth-of-type(1) {
    float: right;
    background-color: #cff3ab;
    margin: 5px 5px 5px 5px;
    padding: 2px 2px 2px 2px;
    border-radius: 7px;
  }
  
  /* Hint CSS */
  .hint {
    font-style: italic;
    color: #888;
    font-size: 16px;
    margin-top: 10px;
  }
  .hint-platform {
    font-style: italic;
    color: #888;
    font-size: 13px;
    margin-top: 10px;
  }

  *, *:before, *:after {
    -moz-box-sizing: border-box;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
  }
  
  html {
    font-family: Helvetica, Arial, sans-serif;
    font-size: 100%;
    background: #333;
  }
  
  #page-wrapper {
    width: 70vw;
    background: #FFFFFF;
    padding: 1em;
    margin: 1em auto;
    border-top: 5px solid #69c773;
    box-shadow: 0 2px 10px rgba(0,0,0,0.8);
  }
  
  #msg {
    font-size: 0.9em;
    line-height: 1.4em;
  }
  
  #msg.not-supported strong {
    color: #CC0000;
  }
  
#toggleButton {
    display: inline-block;
    /* background-color: hsl(211, 76%, 62%); */
    color: #FFFFFF;
    /* padding: 2px 2px;
    font-size: 16px; */
    border: none;
    cursor: pointer;
    /* margin: 10px; */
    transition: background-color 0.3s;
  }
  
  .hidden {
    display: none;
  }