#bk-chatbot-toggle{position:fixed;bottom:20px;right:20px;width:60px;height:60px;background:#111;color:#fff;border-radius:50%;text-align:center;line-height:60px;font-size:28px;cursor:pointer;z-index:9999;box-shadow:0 0 15px rgba(0,0,0,.3);}
#bk-chatbot-box{position:fixed;bottom:90px;right:20px;width:350px;background:#fff;border-radius:12px;display:none;overflow:hidden;font-family:Arial;z-index:9999;box-shadow:0 0 20px rgba(0,0,0,.25);}
.bk-chat-header{background:#111;color:#fff;padding:15px;font-weight:bold;}
#bk-chat-messages{height:300px;overflow-y:auto;padding:10px;background:#f5f5f5;}
.bot,.user{padding:10px;margin:8px 0;border-radius:10px;max-width:85%;}
.bot{background:#e4e4e4;}
.user{background:#111;color:#fff;margin-left:auto;}
.bk-quick-btns{padding:10px;display:flex;flex-wrap:wrap;gap:5px;}
.bk-quick-btns button{font-size:11px;padding:6px 8px;border:none;background:#d9d9d9;cursor:pointer;border-radius:6px;}
.bk-input-area{display:flex;border-top:1px solid #ddd;}
.bk-input-area input{flex:1;padding:10px;border:none;outline:none;}
.bk-input-area button{background:#111;color:#fff;border:none;padding:10px 15px;}