* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

       /* body {
            font-family: 'Arial', sans-serif;
            background-color: #F4F4F9;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
        }
*/
        #help-button {
            background-color: #4CAF50;
            color: white;
            padding: 15px 20px;
            border-radius: 50px;
            cursor: pointer;
            font-size: 16px;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
            position: fixed;
            bottom: 20px;
            right: 20px;
            z-index: 999;
            transition: transform 0.3s ease;
        }

        #help-button:hover {
            transform: scale(1.1);
        }

        #chatbot {
            width: 100%;
            max-width: 350px;
            height: 450px;
            background: #FFFFFF;
            border-radius: 10px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
            display: none;
            flex-direction: column;
            overflow: hidden;
            position: fixed;
            bottom: 80px;
            right: 20px;
            transition: all 0.3s ease;
        }

        #chatbot-header {
            background-color: #4CAF50;
            color: white;
            padding: 12px;
            text-align: center;
            font-weight: bold;
            border-radius: 10px 10px 0 0;
            position: relative;
            transition: background-color 0.3s ease;
        }

        #chatbot-header:hover {
            background-color: #45a049;
        }

        #chatbot-messages {
            flex: 1;
            padding: 10px;
            overflow-y: auto;
            background-color: #ECE5DD;
            border-bottom: 1px solid #E0E0E0;
            display: flex;
            flex-direction: column;
            opacity: 0;
            animation: fadeIn 1s forwards;
        }

        .message {
            margin-bottom: 12px;
            opacity: 0;
            animation: fadeIn 0.5s forwards;
            display: flex;
            align-items: center;
        }

        .message img {
            border-radius: 50%;
            width: 30px;
            height: 30px;
            margin-right: 10px;
        }

        .user-message {
            text-align: right;
            display: inline-block;
            background-color: #DCF8C6;
            color: #333;
            padding: 10px;
            border-radius: 15px 15px 0 15px;
            max-width: 70%;
            margin-bottom: 8px;
            margin-left: auto;
            position: relative;
        }

        .bot-message {
            text-align: left;
            display: inline-block;
            background-color: #FFFFFF;
            color: #333;
            padding: 10px;
            border-radius: 15px 15px 15px 0;
            max-width: 70%;
            margin-bottom: 8px;
            margin-right: auto;
            border: 1px solid #E0E0E0;
            position: relative;
        }

        .button-option {
            display: inline-block;
            background-color: #4CAF50;
            color: white;
            padding: 10px 15px;
            border-radius: 30px;
            text-align: center;
            margin: 5px 0;
            cursor: pointer;
            font-size: 14px;
            width: 100%;
            transition: background-color 0.3s ease, transform 0.2s ease;
        }

        .button-option:hover {
            background-color: #45a049;
            transform: scale(1.05);
        }

        .button-option:focus {
            outline: none;
            background-color: #388e3c;
        }

        #chatbot-input {
            padding: 10px;
            background-color: #f9f9f9;
            border-top: 1px solid #E0E0E0;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        #chatbot-input input {
            width: 80%;
            padding: 10px;
            border: 1px solid #E0E0E0;
            border-radius: 20px;
            font-size: 14px;
            margin-right: 10px;
            transition: border-color 0.3s ease;
        }

        #chatbot-input input:focus {
            border-color: #4CAF50;
            outline: none;
        }

        #chatbot-input button {
            background-color: #4CAF50;
            color: white;
            padding: 10px 15px;
            border: none;
            border-radius: 20px;
            cursor: pointer;
            transition: background-color 0.3s ease;
        }

        #chatbot-input button:hover {
            background-color: #45a049;
        }

        @keyframes fadeIn {
            to {
                opacity: 1;
            }
        }

        @media (max-width: 500px) {
            #chatbot {
                width: 90%;
                height: auto;
            }

            #help-button {
                padding: 12px 15px;
                font-size: 14px;
            }
        }

        .loading {
            display: flex;
            align-items: center;
        }

        .loading .dot {
            width: 10px;
            height: 10px;
            margin-right: 5px;
            border-radius: 50%;
            background-color: #4CAF50;
            animation: dot-blink 1s infinite;
        }

        .loading .dot:nth-child(1) {
            animation-delay: 0s;
        }

        .loading .dot:nth-child(2) {
            animation-delay: 0.2s;
        }

        .loading .dot:nth-child(3) {
            animation-delay: 0.4s;
        }

        @keyframes dot-blink {
            0%, 50%, 100% {
                opacity: 0;
            }
            25%, 75% {
                opacity: 1;
            }
        }