#kmar-btn{position:fixed;bottom:20px;right:20px;width:60px;height:60px;background:url('../img/asesor-kmar.png') center/cover;border-radius:50%;cursor:pointer;z-index:9999;box-shadow:0 4px 10px rgba(0,0,0,0.3);}
#kmar-win{position:fixed;bottom:90px;right:20px;width:320px;height:450px;background:#fff;border-radius:12px;box-shadow:0 5px 20px rgba(0,0,0,0.2);display:none;flex-direction:column;z-index:9999;font-family:sans-serif;overflow:hidden;}
.kmar-head{background:#007bff;color:#fff;padding:10px 15px;font-weight:bold;display:flex;justify-content:space-between;align-items:center;}
.kmar-close{cursor:pointer;font-size:18px;}
#kmar-body{flex:1;overflow-y:auto;padding:15px;display:flex;flex-direction:column;gap:10px;}
.kmar-cat{width:100%;padding:8px;margin:4px 0;border:1px solid #ddd;background:#f9f9f9;border-radius:6px;cursor:pointer;text-align:left;}
.kmar-cat:hover{background:#007bff;color:#fff;}
.kmar-msg{padding:10px;border-radius:12px;max-width:85%;font-size:14px;line-height:1.4;word-wrap:break-word;}
.kmar-msg.bot{background:#f1f1f1;align-self:flex-start;border-bottom-left-radius:2px;}
.kmar-msg.user{background:#007bff;color:#fff;align-self:flex-end;border-bottom-right-radius:2px;}
.kmar-foot{padding:10px;border-top:1px solid #eee;display:flex;gap:5px;}
.kmar-foot input{flex:1;padding:8px;border-radius:20px;border:1px solid #ccc;outline:none;}
.kmar-foot button{padding:8px 15px;background:#007bff;color:#fff;border:none;border-radius:20px;cursor:pointer;}
@media(max-width:768px){#kmar-win{width:90%;right:5%;bottom:80px;height:60vh;}}