.itcb-front{
  border:1px solid #e5e5e5;
  border-radius:10px;
  overflow:hidden;
  max-width:520px;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}
.itcb-front__header{
  background:#111827;
  color:#fff;
  padding:10px 12px;
  font-weight:700;
}

.itcb-chat{ background:#fff; }
.itcb-chat__messages{
  padding:12px;
  height:280px;
  overflow:auto;
  display:flex;
  flex-direction:column;
  gap:8px;
  border-bottom:1px solid #e5e5e5;
}
.itcb-msg{
  padding:10px 12px;
  border-radius:12px;
  max-width:85%;
  font-size:14px;
  line-height:1.25;
  white-space:pre-wrap;
}
.itcb-msg--bot{
  background:#f3f4f6;
  align-self:flex-start;
}
.itcb-msg--user{
  background:#111827;
  color:#fff;
  align-self:flex-end;
}

.itcb-chat__form{
  display:flex;
  gap:8px;
  padding:10px;
}
.itcb-chat__input{
  flex:1;
  padding:10px;
  border:1px solid #d1d5db;
  border-radius:8px;
}
.itcb-chat__btn{
  padding:10px 12px;
  border:1px solid #111827;
  background:#111827;
  color:#fff;
  border-radius:8px;
  cursor:pointer;
}
.itcb-chat__status{
  padding:0 10px 10px 10px;
  font-size:12px;
  color:#6b7280;
}