/* The message box: starts one line tall, wraps, and grows with what's typed
   (chat_form_controller.js stops the growing at 40% of the screen, then it
   scrolls). The writer can drag its corner taller, up to 70% of the screen, so
   the Send button and a little of the conversation always stay in view. */
.chat-composer {
  min-height: 2.5rem;
  max-height: 70dvh;
  resize: vertical;
  overflow-y: auto;
  line-height: 1.5;
  font-size: 1rem;
}