08Help button that opens a chat launcher

<main class="stage">
  <section class="ch is-demo" id="ch" aria-label="A help button that opens a chat launcher">
    <div class="ch__panel" id="ch-panel" role="dialog" aria-label="Help chat" aria-modal="false">
      <header class="ch__head">
        <span class="ch__name">How can we help?</span>
      </header>
      <div class="ch__log" id="ch-log" aria-live="polite">
        <p class="ch__bubble ch__bubble--bot">Write what you wonder. A person answers on weekday days.</p>
        <p class="ch__bubble ch__loop-me" aria-hidden="true">When does it ship?</p>
        <p class="ch__bubble ch__loop-dots" aria-hidden="true">...</p>
        <p class="ch__bubble ch__loop-reply" aria-hidden="true">It leaves first thing tomorrow morning.</p>
      </div>
      <form class="ch__form" id="ch-form">
        <input class="ch__input" id="ch-input" type="text" placeholder="Type a message" aria-label="Message input" />
        <button class="ch__send" type="submit" aria-label="Send the message">
          <span aria-hidden="true"><svg viewBox="0 0 256 256" width="1em" height="1em" fill="currentColor"><path d="M227.91,134.86,59.93,231a8,8,0,0,1-11.44-9.67L80,128,48.49,34.72a8,8,0,0,1,11.44-9.67l168,95.85A8,8,0,0,1,227.91,134.86Z" opacity=".2"/><path d="M231.87,114l-168-95.89A16,16,0,0,0,40.92,37.34L71.55,128,40.92,218.67A16,16,0,0,0,56,240a16.15,16.15,0,0,0,7.93-2.1l167.92-96.05a16,16,0,0,0,.05-27.89ZM56,224a.56.56,0,0,0,0-.12L85.74,136H144a8,8,0,0,0,0-16H85.74L56.06,32.16A.46.46,0,0,0,56,32l168,95.83Z"/></svg></span>
        </button>
      </form>
    </div>
    <button class="ch__fab" type="button" id="ch-fab" aria-expanded="false" aria-controls="ch-panel" aria-label="Open the help chat">
      <span aria-hidden="true"><svg viewBox="0 0 256 256" width="1em" height="1em" fill="currentColor"><path d="M224,128A96,96,0,0,1,79.93,211.11h0L42.54,223.58a8,8,0,0,1-10.12-10.12l12.47-37.39h0A96,96,0,1,1,224,128Z" opacity=".2"/><path d="M128,24A104,104,0,0,0,36.18,176.88L24.83,210.93a16,16,0,0,0,20.24,20.24l34.05-11.35A104,104,0,1,0,128,24Zm0,192a87.87,87.87,0,0,1-44.06-11.81,8,8,0,0,0-4-1.08,7.85,7.85,0,0,0-2.53.42L40,216,52.47,178.6a8,8,0,0,0-.66-6.54A88,88,0,1,1,128,216Zm12-88a12,12,0,1,1-12-12A12,12,0,0,1,140,128Zm-44,0a12,12,0,1,1-12-12A12,12,0,0,1,96,128Zm88,0a12,12,0,1,1-12-12A12,12,0,0,1,184,128Z"/></svg></span>
    </button>
  </section>
</main>

@use "../../../../site/static/demo-tokens" as *;

// 도움말 FAB 과 채팅 창 — 판은 translateY 로 열리고 대화는 실제로 쌓인다
$duration: $dur-base;
$easing: $ease-spring;
$color: $stage-orange;

@include stage($stage-paper);

.ch {
  position: relative;
  display: grid;
  justify-items: end;
  align-content: end;
  gap: $sp-2;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
}

// 판: 절대배치 대신 자리를 확보해 320px 넘침을 막는다 (보임만 변한다)
.ch__panel {
  box-sizing: border-box;
  width: min(236px, 92vw);
  height: 148px;
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: $sp-2;
  border: 1px solid rgba(23, 20, 26, .14);
  border-radius: $r-card;
  background: $subject-cream;
  color: $subject-ink;
  box-shadow: $shadow-press;
  transform: translateY(16px) scale(.96);
  opacity: 0;
  pointer-events: none;
  transition: transform $duration $easing, opacity $dur-instant linear;
}

.ch__head {
  display: flex;
  align-items: center;
  margin-bottom: $sp-1;
}
.ch__name { font-size: 11px; font-weight: 700; line-height: 1.3; }

.ch__log {
  display: grid;
  align-content: start;
  gap: $sp-1;
  overflow: hidden;
}
.ch__bubble {
  margin: 0;
  padding: $sp-1 $sp-2;
  border-radius: $r-control;
  font-size: 11px;
  line-height: 1.45;
}
.ch__bubble--bot {
  justify-self: start;
  background: rgba(23, 20, 26, .07);
}
.ch__bubble--me {
  justify-self: end;
  background: $stage-orange;
  color: $subject-cream;
}

.ch__form {
  display: flex;
  gap: $sp-1;
  margin-top: $sp-1;
}
.ch__input {
  flex: 1 1 auto;
  min-width: 0;
  box-sizing: border-box;
  height: 32px;
  margin: 0;
  padding: 0 $sp-2;
  border: 1px solid rgba(23, 20, 26, .22);
  border-radius: $r-pill;
  background: transparent;
  color: $subject-ink;
  font-family: inherit;
  font-size: 11px;
  line-height: 1.3;
}
.ch__input::placeholder { color: rgba(23, 20, 26, .45); }
.ch__input:focus-visible { outline: 2px solid $color; outline-offset: 1px; }
.ch__send {
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: $stage-orange;
  color: $subject-cream;
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
}
.ch__send:focus-visible { outline: 2px solid $subject-ink; outline-offset: 2px; }

.ch__fab {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: $subject-ink;
  color: $stage-orange;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  box-shadow: $shadow-raised;
  transition: transform $dur-instant $ease-pop;
}
.ch__fab:focus-visible { outline: 3px solid $subject-cream; outline-offset: 3px; }
.ch__fab:active { transform: scale(.92); }

// 정적 경로 — 열리면 판이 제자리에 살아난다
.ch.is-open .ch__panel {
  transform: translateY(0) scale(1);
  opacity: 1;
  pointer-events: auto;
}

// ── 격자 미리보기 전용 2초 루프: 열림 → 보낸 말 → 답 (닫힘은 재현하지 않는다) ──
@keyframes ch-loop-panel {
  0%, 9% { transform: translateY(16px) scale(.96); opacity: 0; }
  10% { opacity: 1; }
  28%, 100% { transform: translateY(0) scale(1); opacity: 1; }
}
@keyframes ch-loop-me {
  0%, 42% { transform: translateY(10px); opacity: 0; }
  43% { opacity: 1; }
  56%, 100% { transform: translateY(0); opacity: 1; }
}
@keyframes ch-loop-dots {
  0%, 47% { transform: translateY(10px); opacity: 0; }
  48% { opacity: 1; }
  60%, 68% { transform: translateY(0); opacity: 1; }
  69%, 100% { transform: translateY(0); opacity: 0; }
}
@keyframes ch-loop-reply {
  0%, 68% { transform: translateY(10px); opacity: 0; }
  69% { opacity: 1; }
  80%, 100% { transform: translateY(0); opacity: 1; }
}
.ch__loop-me,
.ch__loop-dots,
.ch__loop-reply {
  justify-self: end;
  display: none;
}
.ch__loop-me {
  background: $stage-orange;
  color: $subject-cream;
}
.ch__loop-dots,
.ch__loop-reply {
  justify-self: start;
  background: rgba(23, 20, 26, .07);
}
.ch.is-demo {
  .ch__panel {
    animation-name: ch-loop-panel;
    animation-duration: $dur-loop;
    animation-timing-function: $easing;
    animation-iteration-count: infinite;
  }
  .ch__loop-me {
    display: block;
    animation-name: ch-loop-me;
    animation-duration: $dur-loop;
    animation-timing-function: $easing;
    animation-iteration-count: infinite;
    animation-fill-mode: backwards;
  }
  .ch__loop-dots {
    display: block;
    animation-name: ch-loop-dots;
    animation-duration: $dur-loop;
    animation-timing-function: $easing;
    animation-iteration-count: infinite;
    animation-fill-mode: backwards;
  }
  .ch__loop-reply {
    display: block;
    animation-name: ch-loop-reply;
    animation-duration: $dur-loop;
    animation-timing-function: $easing;
    animation-iteration-count: infinite;
    animation-fill-mode: backwards;
  }
}

@media (max-width: 340px) {
  .ch__panel { height: 112px; padding: $sp-1; }
  .ch__bubble { font-size: 10px; }
  .ch__input, .ch__send { height: 28px; }
  .ch__send { width: 28px; font-size: 14px; }
  .ch__fab { width: 40px; height: 40px; font-size: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  .ch.is-demo .ch__panel,
  .ch.is-demo .ch__loop-me,
  .ch.is-demo .ch__loop-dots,
  .ch.is-demo .ch__loop-reply { animation: none !important; transform: none !important; }
  // 열리고 답까지 온 결과만 남긴다 — 채팅이 꽉 찬 모습으로 멈춘다
  .ch.is-demo .ch__panel { opacity: 1 !important; pointer-events: auto !important; }
  .ch.is-demo .ch__loop-me,
  .ch.is-demo .ch__loop-reply { opacity: 1 !important; display: block !important; }
  .ch.is-demo .ch__loop-dots { opacity: 0 !important; display: none !important; }
}

html, body {
  margin: 0;
  overflow: hidden;
}

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #ffffff;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.ch {
  position: relative;
  display: grid;
  justify-items: end;
  align-content: end;
  gap: 8px;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
}

.ch__panel {
  box-sizing: border-box;
  width: min(236px, 92vw);
  height: 148px;
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: 8px;
  border: 1px solid rgba(23, 20, 26, 0.14);
  border-radius: 16px;
  background: #fff7e6;
  color: #17141a;
  box-shadow: 0 6px 12px rgba(23, 20, 26, 0.32);
  transform: translateY(16px) scale(0.96);
  opacity: 0;
  pointer-events: none;
  transition: transform 300ms cubic-bezier(0.2, 0.8, 0.2, 1), opacity 140ms linear;
}

.ch__head {
  display: flex;
  align-items: center;
  margin-bottom: 4px;
}

.ch__name {
  font-size: 11px;
  font-weight: 700;
  line-height: 1.3;
}

.ch__log {
  display: grid;
  align-content: start;
  gap: 4px;
  overflow: hidden;
}

.ch__bubble {
  margin: 0;
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 11px;
  line-height: 1.45;
}

.ch__bubble--bot {
  justify-self: start;
  background: rgba(23, 20, 26, 0.07);
}

.ch__bubble--me {
  justify-self: end;
  background: #ff4d1f;
  color: #fff7e6;
}

.ch__form {
  display: flex;
  gap: 4px;
  margin-top: 4px;
}

.ch__input {
  flex: 1 1 auto;
  min-width: 0;
  box-sizing: border-box;
  height: 32px;
  margin: 0;
  padding: 0 8px;
  border: 1px solid rgba(23, 20, 26, 0.22);
  border-radius: 999px;
  background: transparent;
  color: #17141a;
  font-family: inherit;
  font-size: 11px;
  line-height: 1.3;
}

.ch__input::placeholder {
  color: rgba(23, 20, 26, 0.45);
}

.ch__input:focus-visible {
  outline: 2px solid #ff4d1f;
  outline-offset: 1px;
}

.ch__send {
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: #ff4d1f;
  color: #fff7e6;
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
}

.ch__send:focus-visible {
  outline: 2px solid #17141a;
  outline-offset: 2px;
}

.ch__fab {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: #17141a;
  color: #ff4d1f;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
  transition: transform 140ms cubic-bezier(0.2, 1.4, 0.4, 1);
}

.ch__fab:focus-visible {
  outline: 3px solid #fff7e6;
  outline-offset: 3px;
}

.ch__fab:active {
  transform: scale(0.92);
}

.ch.is-open .ch__panel {
  transform: translateY(0) scale(1);
  opacity: 1;
  pointer-events: auto;
}

@keyframes ch-loop-panel {
  0%, 9% {
    transform: translateY(16px) scale(0.96);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  28%, 100% {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
}
@keyframes ch-loop-me {
  0%, 42% {
    transform: translateY(10px);
    opacity: 0;
  }
  43% {
    opacity: 1;
  }
  56%, 100% {
    transform: translateY(0);
    opacity: 1;
  }
}
@keyframes ch-loop-dots {
  0%, 47% {
    transform: translateY(10px);
    opacity: 0;
  }
  48% {
    opacity: 1;
  }
  60%, 68% {
    transform: translateY(0);
    opacity: 1;
  }
  69%, 100% {
    transform: translateY(0);
    opacity: 0;
  }
}
@keyframes ch-loop-reply {
  0%, 68% {
    transform: translateY(10px);
    opacity: 0;
  }
  69% {
    opacity: 1;
  }
  80%, 100% {
    transform: translateY(0);
    opacity: 1;
  }
}
.ch__loop-me,
.ch__loop-dots,
.ch__loop-reply {
  justify-self: end;
  display: none;
}

.ch__loop-me {
  background: #ff4d1f;
  color: #fff7e6;
}

.ch__loop-dots,
.ch__loop-reply {
  justify-self: start;
  background: rgba(23, 20, 26, 0.07);
}

.ch.is-demo .ch__panel {
  animation-name: ch-loop-panel;
  animation-duration: 2s;
  animation-timing-function: cubic-bezier(0.2, 0.8, 0.2, 1);
  animation-iteration-count: infinite;
}
.ch.is-demo .ch__loop-me {
  display: block;
  animation-name: ch-loop-me;
  animation-duration: 2s;
  animation-timing-function: cubic-bezier(0.2, 0.8, 0.2, 1);
  animation-iteration-count: infinite;
  animation-fill-mode: backwards;
}
.ch.is-demo .ch__loop-dots {
  display: block;
  animation-name: ch-loop-dots;
  animation-duration: 2s;
  animation-timing-function: cubic-bezier(0.2, 0.8, 0.2, 1);
  animation-iteration-count: infinite;
  animation-fill-mode: backwards;
}
.ch.is-demo .ch__loop-reply {
  display: block;
  animation-name: ch-loop-reply;
  animation-duration: 2s;
  animation-timing-function: cubic-bezier(0.2, 0.8, 0.2, 1);
  animation-iteration-count: infinite;
  animation-fill-mode: backwards;
}

@media (max-width: 340px) {
  .ch__panel {
    height: 112px;
    padding: 4px;
  }
  .ch__bubble {
    font-size: 10px;
  }
  .ch__input, .ch__send {
    height: 28px;
  }
  .ch__send {
    width: 28px;
    font-size: 14px;
  }
  .ch__fab {
    width: 40px;
    height: 40px;
    font-size: 20px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .ch.is-demo .ch__panel,
  .ch.is-demo .ch__loop-me,
  .ch.is-demo .ch__loop-dots,
  .ch.is-demo .ch__loop-reply {
    animation: none !important;
    transform: none !important;
  }
  .ch.is-demo .ch__panel {
    opacity: 1 !important;
    pointer-events: auto !important;
  }
  .ch.is-demo .ch__loop-me,
  .ch.is-demo .ch__loop-reply {
    opacity: 1 !important;
    display: block !important;
  }
  .ch.is-demo .ch__loop-dots {
    opacity: 0 !important;
    display: none !important;
  }
}

// 도움말 FAB: 채팅 창이 열리고 보낸 말은 진짜로 쌓인다
var ch = document.getElementById('ch');
var chFab = document.getElementById('ch-fab');
var chForm = document.getElementById('ch-form');
var chInput = document.getElementById('ch-input');
var chLog = document.getElementById('ch-log');
function chAdd(text, who) {
  var p = document.createElement('p');
  p.className = 'ch__bubble ch__bubble--' + who;
  p.textContent = text;
  chLog.appendChild(p);
  return p;
}
chFab.addEventListener('click', function () {
  ch.classList.remove('is-demo');
  ch.classList.toggle('is-open');
  var open = ch.classList.contains('is-open');
  chFab.setAttribute('aria-expanded', open ? 'true' : 'false');
  chFab.setAttribute('aria-label', open ? 'Close the help chat' : 'Open the help chat');
  if (open) window.setTimeout(function () { chInput.focus({ preventScroll: true }); }, 240);
});
chForm.addEventListener('submit', function (e) {
  e.preventDefault();
  var text = chInput.value.trim();
  if (!text) return;
  ch.classList.remove('is-demo');
  chAdd(text, 'me');
  chInput.value = '';
  var dots = chAdd('...', 'bot');
  window.setTimeout(function () {
    dots.textContent = 'Got it. One moment, please.';
  }, 900);
});

import { useEffect, useRef, useState } from "react";
import type { CSSProperties, ChangeEvent } from "react";
import styles from "./ChatHelpFab.module.scss";

export type ChatHelpFabProps = {
  panelLabel?: string;
  headName?: string;
  greeting?: string;
  placeholder?: string;
  inputLabel?: string;
  sendLabel?: string;
  openLabel?: string;
  closeLabel?: string;
  groupLabel?: string;
  /** 격자 루프에서만 보이는 보기용 대화 */
  loopAsk?: string;
  loopDots?: string;
  loopReply?: string;
  /** 사람이 보낸 말에 붙는 자동 응답 */
  replyText?: string;
  replyDelay?: number;
  panelId?: string;
  /** 격자 미리보기용 2초 자동 루프. 사람이 손대면 꺼진다 */
  demo?: boolean;
  duration?: number;
  easing?: string;
  color?: string;
};

type Vars = CSSProperties & { "--duration"?: string; "--easing"?: string; "--color"?: string };

// ambient 에 FormEvent 가 없다 — 쓰는 것만 로컬로 선언한다
type SubmitEvt = { preventDefault(): void };

type Line = { id: number; text: string; me: boolean };

function Send() {
  return (
    <svg viewBox="0 0 256 256" width="1em" height="1em" fill="currentColor">
      <path d="M227.91,134.86,59.93,231a8,8,0,0,1-11.44-9.67L80,128,48.49,34.72a8,8,0,0,1,11.44-9.67l168,95.85A8,8,0,0,1,227.91,134.86Z" opacity=".2" />
      <path d="M231.87,114l-168-95.89A16,16,0,0,0,40.92,37.34L71.55,128,40.92,218.67A16,16,0,0,0,56,240a16.15,16.15,0,0,0,7.93-2.1l167.92-96.05a16,16,0,0,0,.05-27.89ZM56,224a.56.56,0,0,0,0-.12L85.74,136H144a8,8,0,0,0,0-16H85.74L56.06,32.16A.46.46,0,0,0,56,32l168,95.83Z" />
    </svg>
  );
}

function Chat() {
  return (
    <svg viewBox="0 0 256 256" width="1em" height="1em" fill="currentColor">
      <path d="M224,128A96,96,0,0,1,79.93,211.11h0L42.54,223.58a8,8,0,0,1-10.12-10.12l12.47-37.39h0A96,96,0,1,1,224,128Z" opacity=".2" />
      <path d="M128,24A104,104,0,0,0,36.18,176.88L24.83,210.93a16,16,0,0,0,20.24,20.24l34.05-11.35A104,104,0,1,0,128,24Zm0,192a87.87,87.87,0,0,1-44.06-11.81,8,8,0,0,0-4-1.08,7.85,7.85,0,0,0-2.53.42L40,216,52.47,178.6a8,8,0,0,0-.66-6.54A88,88,0,1,1,128,216Zm12-88a12,12,0,1,1-12-12A12,12,0,0,1,140,128Zm-44,0a12,12,0,1,1-12-12A12,12,0,0,1,96,128Zm88,0a12,12,0,1,1-12-12A12,12,0,0,1,184,128Z" />
    </svg>
  );
}

export default function ChatHelpFab({
  panelLabel = "Help chat",
  headName = "How can we help?",
  greeting = "Tell us what you need. A human answers on weekday afternoons.",
  placeholder = "Write a message",
  inputLabel = "Message",
  sendLabel = "Send message",
  openLabel = "Open help chat",
  closeLabel = "Close help chat",
  groupLabel = "Help button that opens a chat panel",
  loopAsk = "When does it ship?",
  loopDots = "...",
  loopReply = "It leaves first thing tomorrow morning.",
  replyText = "Got it. Hang on a moment.",
  replyDelay = 900,
  panelId = "ch-panel",
  demo = true,
  duration = 300,
  easing = "cubic-bezier(.2,.8,.2,1)",
  color = "#ff4d1f",
}: ChatHelpFabProps) {
  const [open, setOpen] = useState(false);
  const [live, setLive] = useState(demo);
  const [draft, setDraft] = useState("");
  const [lines, setLines] = useState<Line[]>([]);
  const inputRef = useRef<HTMLInputElement>(null);
  const focusT = useRef<number>(null);
  const replyT = useRef<number>(null);
  const seq = useRef<number>(0);

  useEffect(() => () => {
    if (focusT.current !== null) window.clearTimeout(focusT.current);
    if (replyT.current !== null) window.clearTimeout(replyT.current);
  }, []);

  function toggle() {
    setLive(false);
    const next = !open;
    setOpen(next);
    if (focusT.current !== null) window.clearTimeout(focusT.current);
    if (!next) return;
    // 판이 다 올라온 뒤에 커서를 넣는다
    focusT.current = window.setTimeout(() => {
      const el = inputRef.current;
      if (el) el.focus({ preventScroll: true });
    }, duration);
  }

  // 보낸 말은 진짜로 쌓인다 — 먼저 "..." 이 붙고 잠시 뒤 그 말풍선이 답으로 바뀐다
  function send(e: SubmitEvt) {
    e.preventDefault();
    const text = draft.trim();
    if (!text) return;
    setLive(false);
    const mineId = (seq.current === null ? 0 : seq.current) + 1;
    const botId = mineId + 1;
    seq.current = botId;
    setLines((prev) => prev.concat([
      { id: mineId, text: text, me: true },
      { id: botId, text: loopDots, me: false },
    ]));
    setDraft("");
    if (replyT.current !== null) window.clearTimeout(replyT.current);
    replyT.current = window.setTimeout(() => {
      setLines((prev) => prev.map((l) => (l.id === botId ? { id: l.id, text: replyText, me: false } : l)));
    }, replyDelay);
  }

  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };
  const cls = [styles.ch, live ? styles.isDemo : "", open ? styles.isOpen : ""].filter(Boolean).join(" ");

  return (
    <section className={cls} style={vars} aria-label={groupLabel}>
      <div className={styles.panel} id={panelId} role="dialog" aria-label={panelLabel} aria-modal="false">
        <header className={styles.head}>
          <span className={styles.name}>{headName}</span>
        </header>
        <div className={styles.log} aria-live="polite">
          <p className={[styles.bubble, styles.bubbleBot].join(" ")}>{greeting}</p>
          <p className={[styles.bubble, styles.loopMe].join(" ")} aria-hidden="true">{loopAsk}</p>
          <p className={[styles.bubble, styles.loopDots].join(" ")} aria-hidden="true">{loopDots}</p>
          <p className={[styles.bubble, styles.loopReply].join(" ")} aria-hidden="true">{loopReply}</p>
          {lines.map((l) => (
            <p key={l.id} className={[styles.bubble, l.me ? styles.bubbleMe : styles.bubbleBot].join(" ")}>{l.text}</p>
          ))}
        </div>
        <form className={styles.form} onSubmit={send}>
          <input
            className={styles.input}
            ref={inputRef}
            type="text"
            value={draft}
            placeholder={placeholder}
            aria-label={inputLabel}
            onChange={(e: ChangeEvent<HTMLInputElement>) => setDraft(e.target.value)}
          />
          <button className={styles.send} type="submit" aria-label={sendLabel}>
            <span aria-hidden="true"><Send /></span>
          </button>
        </form>
      </div>
      <button
        className={styles.fab}
        type="button"
        aria-expanded={open}
        aria-controls={panelId}
        aria-label={open ? closeLabel : openLabel}
        onClick={toggle}
      >
        <span aria-hidden="true"><Chat /></span>
      </button>
    </section>
  );
}