#mlChatBtn {
  position: fixed;
  right: 25px;
  bottom: 150px;
  width: 60px;
  height: 60px;
  background: #0f4c81;
  color: #ffffff;
  border-radius: 50%;
  z-index: 999999;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  cursor: pointer;
  box-shadow: 0 10px 25px rgba(0,0,0,0.22);
}

#mlChatBox {
  position: fixed;
  right: 25px;
  bottom: 220px;
  width: 350px;
  height: 460px;
  background: #ffffff;
  border-radius: 16px;
  overflow: hidden;
  z-index: 999999;
  display: none;
  box-shadow: 0 20px 50px rgba(0,0,0,0.18);
}

.ml-chat-header {
  background: #16324f;
  color: #ffffff;
  padding: 18px;
  font-weight: 700;
}

.ml-chat-body {
  height: 325px;
  overflow-y: auto;
  padding: 20px;
}

.ml-bot-msg {
  background: #eef6fb;
  color: #16324f;
  padding: 14px;
  border-radius: 10px;
  margin-bottom: 12px;
  line-height: 1.6;
}

.ml-user-msg {
  background: #0f4c81;
  color: #ffffff;
  padding: 14px;
  border-radius: 10px;
  margin-bottom: 12px;
  margin-left: 35px;
  line-height: 1.6;
}

.ml-chat-input {
  display: flex;
  border-top: 1px solid #eeeeee;
}

.ml-chat-input input {
  flex: 1;
  border: 0;
  outline: 0;
  padding: 15px;
}

.ml-chat-input button {
  width: 90px;
  border: 0;
  background: #0f4c81;
  color: #ffffff;
  cursor: pointer;
  font-weight: 700;
}

@media (max-width: 576px) {
  #mlChatBox {
    right: 15px;
    bottom: 145px;
    width: calc(100% - 30px);
  }

  #mlChatBtn {
    right: 20px;
    bottom: 135px;
  }
}