.flex-container {
    display: flex;
    height: calc(100vh - 56px);
    padding-top: 56px;
    background-color: #f0f2f5;
  }
  
  .supporting-text-card {
    width: 25%;
    background-color: #ffffff;
    padding: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    margin: 20px 10px 20px 20px;
  }
  
  .model-selector {
    margin-bottom: 20px;
  }
  
  .model-selector label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
  }
  
  .model-selector select {
    width: 100%;
    padding: 8px;
    border-radius: 4px;
    border: 1px solid #ccc;
  }

  .paper-summary {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #e0e0e0;
  }
  
  .paper-summary h3 {
    font-size: 1.2em;
    margin-bottom: 10px;
  }
  
  .paper-summary p {
    font-size: 0.9em;
    line-height: 1.5;
    margin-bottom: 10px;
  }
  
  .paper-summary a {
    color: #4a76a8;
    text-decoration: none;
    font-weight: bold;
  }
  
  .paper-summary a:hover {
    text-decoration: underline;
  }
  
  
  .chat-container {
    width: 75%;
    display: flex;
    flex-direction: column;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    margin: 20px 20px 20px 10px;
  }
  
  .card {
    display: flex;
    flex-direction: column;
    height: 100%;
  }
  
  .card-header {
    background-color: #4a76a8;
    color: white;
    padding: 15px;
    font-size: 1.2em;
    font-weight: bold;
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
  }
  
  .card-body {
    flex-grow: 1;
    overflow-y: auto;
    padding: 20px;
  }
  
  .messages-list {
    padding: 0;
    margin: 0;
    list-style-type: none;
  }
  
  .message {
    margin-bottom: 15px;
  }
  
  .message-content {
    padding: 10px;
    border-radius: 8px;
    max-width: 70%;
  }
  
  .sent .message-content {
    background-color: #dcf8c6;
    margin-left: auto;
  }
  
  .received .message-content {
    background-color: #f1f0f0;
  }
  
  .message-form {
    display: flex;
    padding: 15px;
    background-color: #f0f2f5;
    border-bottom-left-radius: 8px;
    border-bottom-right-radius: 8px;
  }
  
  .message-input {
    flex-grow: 1;
    border: none;
    background-color: white;
    border-radius: 20px;
    padding: 10px 15px;
    font-size: 0.95em;
    resize: none;
  }
  
  .btn-send {
    background-color: #4a76a8;
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    margin-left: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .btn-send i {
    font-size: 1.2em;
  }