body {
    background-color: #fff;
    color: #000;
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
  }

  .chat-container {
    border: 2px solid #000;
    width: 400px;
    height: 600px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 10px;
    box-sizing: border-box;
  }

  .chat-window {
    flex: 1;
    overflow-y: auto;
    border: 1px solid #000;
    padding: 10px;
    margin-bottom: 10px;
  }

  .input-area {
    display: flex;
  }

  .input-area input {
    flex: 1;
    padding: 10px;
    border: 1px solid #000;
    background-color: #fff;
    color: #000;
  }

  .input-area button {
    padding: 10px;
    border: 1px solid #000;
    background-color: #fff;
    color: #000;
    cursor: pointer;
  }

  .input-area button:hover {
    background-color: #ebebeb;
  }