.jcm-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:10px 14px;
  border-radius:8px;
  border:1px solid rgba(0,0,0,.15);
  background:#fff;
  cursor:pointer;
  font-size:14px;
}
.jcm-btn:hover{ background:rgba(0,0,0,.03); }
.jcm-link{ background:none; border:none; padding:0; color:#1d4ed8; cursor:pointer; text-decoration:underline; font-size:13px; }

.jcm-modal-open{ overflow:hidden; }
.jcm-modal{ position:fixed; inset:0; z-index:9999; }
.jcm-modal__backdrop{ position:absolute; inset:0; background:rgba(0,0,0,.45); }
.jcm-modal__panel{
  position:absolute;
  left:50%; top:50%;
  transform:translate(-50%,-50%);
  width:min(720px, 94vw);
  height:min(640px, 90vh);
  background:#fff;
  border-radius:14px;
  box-shadow:0 12px 40px rgba(0,0,0,.25);
  display:flex;
  flex-direction:column;
  overflow:hidden;
}
.jcm-modal__header{
  padding:12px 14px;
  border-bottom:1px solid rgba(0,0,0,.08);
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.jcm-modal__title{ font-weight:600; }
.jcm-modal__close{ background:none; border:none; font-size:20px; cursor:pointer; }
.jcm-modal__messages{
  flex:1;
  padding:14px;
  overflow:auto;
  background:rgba(0,0,0,.02);
}
.jcm-modal__composer{
  padding:12px;
  border-top:1px solid rgba(0,0,0,.08);
  display:flex;
  gap:10px;
}
.jcm-modal__composer textarea{
  flex:1;
  resize:none;
  padding:10px;
  border-radius:10px;
  border:1px solid rgba(0,0,0,.15);
}
.jcm-modal__actions{
  padding:10px 12px;
  border-top:1px solid rgba(0,0,0,.08);
  display:flex;
  gap:14px;
}

.jcm-msg{ margin-bottom:10px; max-width:85%; }
.jcm-msg--me{ margin-left:auto; text-align:right; }
.jcm-msg__bubble{
  display:inline-block;
  padding:10px 12px;
  border-radius:14px;
  background:#fff;
  border:1px solid rgba(0,0,0,.10);
  white-space:pre-wrap;
  word-break:break-word;
}
.jcm-msg--me .jcm-msg__bubble{
  background:rgba(29,78,216,.10);
  border-color:rgba(29,78,216,.15);
}
.jcm-msg__meta{ font-size:11px; opacity:.65; margin-top:4px; }

.jcm-inbox{
  display:grid;
  grid-template-columns: 280px 1fr;
  gap:12px;
  border:1px solid rgba(0,0,0,.10);
  border-radius:14px;
  overflow:hidden;
  min-height:520px;
}
.jcm-inbox__sidebar{
  border-right:1px solid rgba(0,0,0,.08);
  background:#fff;
  display:flex;
  flex-direction:column;
}
.jcm-inbox__title{
  padding:12px 14px;
  font-weight:700;
  border-bottom:1px solid rgba(0,0,0,.08);
}
.jcm-inbox__threads{ overflow:auto; }
.jcm-thread-item{
  padding:12px 14px;
  border-bottom:1px solid rgba(0,0,0,.06);
  cursor:pointer;
}
.jcm-thread-item:hover{ background:rgba(0,0,0,.03); }
.jcm-thread-item__title{ font-weight:600; }
.jcm-thread-item__meta{ font-size:12px; opacity:.65; margin-top:4px; }

.jcm-inbox__main{ display:flex; flex-direction:column; background:#fff; }
.jcm-thread__header{
  padding:12px 14px;
  border-bottom:1px solid rgba(0,0,0,.08);
  font-weight:600;
}
.jcm-thread__messages{
  flex:1;
  padding:14px;
  overflow:auto;
  background:rgba(0,0,0,.02);
}
.jcm-thread__composer{
  padding:12px;
  border-top:1px solid rgba(0,0,0,.08);
  display:flex;
  gap:10px;
}
.jcm-thread__composer textarea{
  flex:1;
  resize:none;
  padding:10px;
  border-radius:10px;
  border:1px solid rgba(0,0,0,.15);
}
.jcm-thread__actions{
  padding:10px 12px;
  border-top:1px solid rgba(0,0,0,.08);
  display:flex;
  gap:14px;
}

@media (max-width: 860px){
  .jcm-inbox{ grid-template-columns: 1fr; }
  .jcm-inbox__sidebar{ border-right:none; border-bottom:1px solid rgba(0,0,0,.08); }
}