body, html {
            height: 100%;
            margin: 0;
        }
      
        .sidebar {
            background-color: #2e7d32;
            color: white;
            padding: 1rem;
           height: auto;
        }
        .navbar {
            background-color: white;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
            padding: 1rem;
            text-align: center;
            position: sticky;
            top: 0;
            z-index: 10;
        }
        .chat-window {
            padding: 1rem;
            height: calc(100vh - 215px);
            overflow-y: auto;
            background-color: #f5f5f5;
        }
        .message-box {
            padding: 0.75rem;
            margin-bottom: 1rem;
            border-radius: 0.5rem;
            max-width: 75%;
            word-wrap: break-word;         
            overflow-wrap: break-word;     
            white-space: normal;  
        }
        .message-user {
            background-color: #c8e6c9;
            align-self: flex-end;
        }
        .message-bot {
            background-color: #eeeeee;                     
            align-self: flex-start;
        }
        .chat-form {
            padding: 1rem;
            background-color: #e0e0e0;
        }

        .chat-img{      
            max-width: 30%;

        }
         .intro { 
            flex: 1; 
            display: flex; 
            flex-direction: column; 
            align-items: center; 
            justify-content: center; 
        }
  .active-session {
    background-color: #4f9c53;    
       padding: 3px 10px;
}
hr{
    margin: 8px 0 !important;
}

@media (max-width: 576px) {
    .message-box {
        max-width: 85%;
        font-size: 0.95rem;
    }
}