static/style.css

/* Set a modern font and background color */
body {
    font-family: 'Roboto', sans-serif;
    background-color: #f1f9ff;
  }
  
  /* Center the chat box */
  #chat-box {
    margin: 0 auto;
    max-width: 500px;
    padding: 20px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
  }
  
  /* Add a subtle animation */
  #chat-box {
    animation: fadein 1s;
  }

  #chat-area {
    overflow-y: auto;
    max-height: 600px; /* set a maximum height for the chat area */
    display: flex;
    flex-direction: column;
  }
  
  @keyframes fadein {
    from {
      opacity: 0;
    }
    to {
      opacity: 1;
    }
  }
  
  /* Style the chat messages */
  .message-container {
    display: flex;
    flex-direction: column;
  }
  
  .user-message {
    background-image: linear-gradient(to bottom right, #79b6f2, #6daff0);
    color: #ffffff;
    align-self: self-end;
    text-align: right;
    margin-bottom: 10px;
    margin-right: 5px;
    border-radius: 10px 10px 0 10px;
    padding: 10px 15px;
    max-width: fit-content;
    word-wrap: break-word;
    font-size: 16px;
    white-space: pre-wrap;
    float: right;
  }
  
  .bot-message {
    background-color: #f0f0f0;
    color: #000000;
    text-align: left;
    margin-bottom: 10px;
    border-radius: 10px 10px 10px 0;
    padding: 10px 15px;
    word-wrap: break-word;
    max-width: fit-content;
    font-size: 16px;
    white-space: pre-wrap;
    align-self: flex-start;
  }

  .bot-message a {
    color: #0d6efd;
    text-decoration: underline;
  }

  .bot-message a:hover {
    color: #0056b3;
    text-decoration: none;
  }

  .timestamp {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: #999;
    margin-right: 5px;
    text-align: right;
    float: right;
  }

  .bot-timestamp {
    justify-content: space-between;
    font-size: 12px;
    color: #999;
    margin-right: 5px;
  }

  .w-100 {
    padding-top: 10px;
  }
  
  /* Style the input area */
  #input-area {
    display: flex;
    align-items: center;
    margin-top: 20px;
  }
  
  #question-input {
    flex-grow: 1;
    border: none;
    padding: 12px 15px;
    border-radius: 25px;
    font-size: 16px;
    background-color: #fff;
    color: #000;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.3s ease-in-out;
  }
  
  #question-input:focus {
    outline: none;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  }
  
  #send-button {
    background-color: #79b6f2;
    color: #fff;
    border: none;
    padding: 12px 20px;
    border-radius: 25px;
    font-size: 16px;
    margin-left: 10px;
    cursor: pointer;
    transition: all 0.3s ease-in-out;
  }
  
  #send-button:hover {
    background-color: #558fcf;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  }
  
  /* Style the loading indicator */
  #loading-indicator {
    display: none;
    text-align: center;
  }
/* Define the spinner shape */
.spinner {
    width: 20px;
    height: 20px;
    margin-top: 10px;
    position: relative;
    perspective: 800px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .spinner::before {
    content: "";
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    box-shadow:
      inset 0 -3px 0 rgba(0,0,0,.1),
      inset 0 -3px 3px rgba(0,0,0,.2),
      inset 0 -3px 6px rgba(0,0,0,.2),
      0 0 6px 1px #007bff;
    transform: rotate(45deg);
    animation: spinner 1.5s cubic-bezier(.4,0,.2,1) infinite;
  }
  
  /* Define the spinner animation */
  @keyframes spinner {
    0% {
      transform: rotate(45deg) scale(1);
    }
    50% {
      transform: rotate(405deg) scale(.2);
      opacity: .7;
    }
    100% {
      transform: rotate(765deg) scale(1);
      opacity: 1;
    }
  }
  
  #typing-indicator {
    display: none;
    font-style: italic;
    margin-bottom: 10px;
  }