#lex-chat-bubble{position:fixed;bottom:20px;right:20px;z-index:1000;width:50px;height:50px;background-color:#31c48d;color:#fff;border-radius:50%;text-align:center;line-height:50px;font-size:1.5em;cursor:pointer;box-shadow:0 4px 8px #0003;transition:background-color .3s ease;-webkit-user-select:none;-moz-user-select:none;user-select:none}#lex-chat-bubble:hover{background-color:#046c4e}#lex-chat-bubble .bubble-text{display:none}#lex-chat-container{position:fixed;bottom:90px;right:20px;z-index:1000;border:1px solid #ddd;width:320px;max-width:90%;height:500px;box-shadow:0 4px 12px #00000026;display:flex;flex-direction:column;border-radius:8px;overflow:hidden;font-family:sans-serif;visibility:hidden;opacity:0;transform:translateY(50px);transition:opacity .3s ease,transform .3s ease,visibility .3s ease}#lex-chat-container.open{visibility:visible;opacity:1;transform:translateY(0)}#lex-chat-header{background-color:#f8f9fa;padding:10px 15px;border-bottom:1px solid #ddd;font-weight:700;display:flex;justify-content:space-between;align-items:center;flex-shrink:0}#lex-chat-close{font-size:1.2em;cursor:pointer;padding:0 5px;transition:color .2s ease}#lex-chat-close:hover{color:#dc3545}#lex-chatbox{flex-grow:1;overflow-y:auto;padding:15px 15px 70px;background-color:#eef2f7;display:flex;flex-direction:column}#lex-chatbox p{margin:5px 0;padding:8px 12px;border-radius:15px;max-width:80%;word-wrap:break-word}#lex-chatbox p.user-message{align-self:flex-end;background-color:#057a55;color:#fff}#lex-chatbox p.bot-message{align-self:flex-start;background-color:#fff;color:#333;border:1px solid #eee}#lex-input-area{display:flex;border-top:1px solid #ddd;background-color:#fff;padding:10px;flex-shrink:0}#lex-chat-input{flex-grow:1;padding:8px 10px;border:1px solid #ccc;border-radius:4px;outline:none;font-size:1rem;margin-right:10px}#lex-chat-input:focus{border-color:#007bff;box-shadow:0 0 0 .2rem #007bff40}#lex-chat-send{padding:8px 15px;background-color:#28a745;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:1rem;transition:background-color .2s ease;flex-shrink:0}#lex-chat-send:hover{background-color:#218838}#lex-chat-send:disabled{background-color:#ccc;cursor:not-allowed}@media (max-width: 500px){#lex-chat-container{right:10px;bottom:70px;width:calc(100% - 20px);height:60vh}#lex-chat-bubble{bottom:10px;right:10px;width:45px;height:45px;line-height:45px;font-size:1.3em}#lex-chat-bubble .bubble-text{display:inline-block;font-size:.5em;vertical-align:middle;margin-left:5px}#lex-chat-bubble{line-height:normal;display:flex;align-items:center;justify-content:center}}