#mkai-chat-button{
position:fixed;
right:20px;
bottom:20px;
width:60px;
height:60px;
background:#0d6efd;
color:#fff;
border-radius:50%;
display:flex;
align-items:center;
justify-content:center;
font-size:28px;
cursor:pointer;
z-index:99999;
box-shadow:0 5px 15px rgba(0,0,0,.3);
}

#mkai-chat-window{
display:none;
position:fixed;
right:20px;
bottom:90px;
width:360px;
height:520px;
background:#fff;
border-radius:12px;
overflow:hidden;
box-shadow:0 10px 30px rgba(0,0,0,.25);
z-index:99999;
}

#mkai-chat-header{
background:#0d6efd;
color:#fff;
padding:15px;
font-weight:bold;
}

#mkai-chat-body{
height:390px;
overflow:auto;
padding:15px;
background:#f7f7f7;
}

#mkai-chat-footer{
display:flex;
padding:10px;
border-top:1px solid #ddd;
}

#mkai-message{
flex:1;
padding:10px;
}

#mkai-send{
width:60px;
}