div#chat {
  position: fixed;
  right: 20px;
  bottom: 0;
  width: 350px;
  transition: height 0.4s ease-out;
  /* FIXME: height transition isn't work for non-px values */
}

#chat-header {
  display: block;
  box-sizing: border-box;
  border-radius: 7px 7px 0 0;
  padding: 20px;
  width: 100%;
  color: white;
  background-color: #2666e6;
  box-shadow: 0 0 20px 4px rgba(0, 0, 160, 0.32);
  transition: padding 0.1s ease-out;
  cursor: pointer;
  z-index: 2;
}

div#chat:not(.opened) > header:hover {
  padding-bottom: 25px;
}

div#chat > header > svg {
  width: 15px;
  height: 15px;
  vertical-align: middle;
  margin-right: 10px;
}

div#opened-chat {
  display: none;
  padding: 10px;
}

div#chat.opened {
  height: 400px;
  background-color: #f5f5f5;
  box-shadow: 0 0 20px 4px rgba(0, 0, 0, 0.2);
  border-radius: 6px 6px 0 0;
}

div#chat.opened > div#opened-chat {
  display: block;
}

div#request-received {
  display: none;
  background-color: #dddddd;
  color: #000000;
  font-size: 0.9em;
  padding: 45px;
  border-radius: 10px;
  box-shadow: 0 0 20px 2px rgba(0, 0, 0, 0.1);
}

div#opened-chat input {
  display: block;
  box-sizing: border-box;
  padding: 12px;
  border: 1px solid rgba(0, 0, 0, 0.15);
  border-radius: 5px;
}

div#chat-start {
  width: 100%;
  text-align: center;
  color: #bbbbbb;
  margin-top: 50px;
}

input#message {
  position: fixed;
  bottom: 10px;
  right: 30px;
  display: block;
  width: 330px;
  box-sizing: border-box;
  padding: 10px;
}

#message-send {
  position: fixed;
  right: 40px;
  bottom: 20px;
  width: 20px;
  height: 20px;
  cursor: pointer;
}

div#user-form {
  display: none;
  box-sizing: border-box;
  height: 310px;
  overflow-y: overlay;
}

div#user-form > input {
  width: 100%;
  margin: 20px 0;
}

div#user-form > button {
  background-color: #17b92a;
  border-radius: 999px;
  width: 100%;
  padding: 10px 0;
  border: 0;
  color: #ffffff;
  cursor: pointer;
  margin-top: 35px;
  cursor: no-drop;
}