.kbcb-window{height:300px;overflow:auto;background:#fafafa;padding:10px;display:flex;flex-direction:column;gap:8px;font-family:system-ui;}
.kbcb-form{display:flex;gap:6px;padding:8px;background:#fff;border-top:1px solid #eee;}
.kbcb-form input{flex:1;padding:8px;border:1px solid #ccc;border-radius:6px;}
.kbcb-form button{padding:8px 14px;background:#0a7cff;color:#fff;border:0;border-radius:6px;cursor:pointer;}
.kb-msg{display:flex;}
.kb-user{justify-content:flex-end;}
.kb-bubble{max-width:80%;padding:8px 12px;border-radius:14px;font-size:14px;}
.kb-user .kb-bubble{background:#0a7cff;color:#fff;}
.kb-bot .kb-bubble{background:#fff;border:1px solid #ddd;color:#111;}
.kb-typing{font-style:italic;color:#666;}