.karisuma-modal {
  display: none;
  position: fixed;
  z-index: 99998;
  left: 0; top: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.5);
}
.karisuma-modal-content {
  background: #fff;
  margin: 10% auto;
  padding: 20px;
  border-radius: 12px;
  width: 400px; max-width: 90%;
  box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}
.karisuma-close {
  float: right; font-size: 26px; cursor: pointer;
}
#karisumaChatWindow {
  height: 200px; overflow-y: auto;
  border: 1px solid #ccc; padding: 10px;
  margin-bottom: 10px;
}
.user-msg { text-align: right; color:#0073aa; margin:5px; }
.bot-msg  { text-align: left;  color:#333;    margin:5px; }
.error-msg{ text-align:center; color:red;     margin:5px; }
#karisumaUserInput { width: 75%; padding:5px; }
#karisumaSendBtn { padding:6px 10px; }