#ai-chatbot{
 position:fixed;bottom:20px;right:20px;width:300px;
 background:#fff;border-radius:12px;
 box-shadow:0 10px 25px rgba(0,0,0,.25);
 font-family:Arial;z-index:9999;
}
.ai-header{
 background:#0b5cff;color:#fff;padding:12px;
 border-radius:12px 12px 0 0;font-weight:bold;
}
.ai-body{height:220px;overflow:auto;padding:10px;font-size:13px}
.ai-body .bot{background:#f1f1f1;margin:6px;padding:8px;border-radius:8px}
.ai-body .user{background:#0b5cff;color:#fff;margin:6px;padding:8px;border-radius:8px;text-align:right}
#ai-input{width:100%;padding:10px;border:none;border-top:1px solid #ddd}