Bootstrap 5 Pop-Up Chat Box with Message Bubbles

<section class="wdw-stage pc-stage">
  <div class="container" style="max-width:460px">
      <div class="pc-wrap d-flex flex-column align-items-end gap-3">
        <div class="pc-box wdw-card overflow-hidden mx-auto" id="pc-box" role="region" aria-label="Chat with Maya">
          <div class="d-flex align-items-center gap-3 p-3 border-bottom">
            <div class="position-relative"><img src="https://i.pravatar.cc/80?img=47" class="rounded-circle" width="44" height="44" alt="Maya, support agent"><span class="pc-online" aria-hidden="true"></span></div>
            <div class="flex-grow-1"><div class="fw-bold lh-sm">Maya Collins</div><div class="small text-success-emphasis">Online now</div></div>
            <div class="dropdown">
              <button class="btn btn-sm pc-icon px-2" type="button" data-bs-toggle="dropdown" aria-expanded="false" aria-label="Chat options"><svg width="18" height="18" viewBox="0 0 24 24" fill="currentColor"><circle cx="5" cy="12" r="1.8"/><circle cx="12" cy="12" r="1.8"/><circle cx="19" cy="12" r="1.8"/></svg></button>
              <ul class="dropdown-menu dropdown-menu-end"><li><button class="dropdown-item" type="button" id="pc-clear">Clear conversation</button></li><li><a class="dropdown-item" href="#">Email transcript</a></li></ul>
            </div>
            <button type="button" class="btn btn-sm pc-icon px-2" id="pc-close" aria-label="Close chat"><svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round"><path d="M6 6l12 12M18 6L6 18"/></svg></button>
          </div>
          <div class="pc-log p-3 d-flex flex-column gap-3" id="pc-log" role="log" aria-live="polite" aria-label="Conversation" tabindex="0">
            <div class="text-center small wdw-muted">Today</div>
            <div class="pc-msg"><div class="pc-bubble">Hi there! How can I help you today?</div><span class="pc-time">10:02</span></div>
            <div class="pc-msg pc-me"><div class="pc-bubble">I need to change the shipping address on my order.</div><span class="pc-time">10:03</span></div>
            <div class="pc-msg"><div class="pc-bubble">Of course. Could you share your order number?</div><span class="pc-time">10:03</span></div>
            <div class="pc-typing" aria-hidden="true"><span></span><span></span><span></span></div>
          </div>
          <div class="pc-chips d-flex flex-wrap gap-2 px-3 pb-3 bg-body-tertiary" role="group" aria-label="Quick replies">
            <button type="button" class="btn btn-sm btn-outline-primary rounded-pill" data-reply="My order number is #48213.">Order #48213</button>
            <button type="button" class="btn btn-sm btn-outline-primary rounded-pill" data-reply="I don't have it with me.">I don't have it</button>
            <button type="button" class="btn btn-sm btn-outline-primary rounded-pill" data-reply="Can I talk to a person?">Talk to a person</button>
          </div>
          <form class="d-flex gap-2 p-3 border-top" id="pc-form" autocomplete="off">
            <label class="visually-hidden" for="pc-input">Message</label>
            <input type="text" class="form-control rounded-pill" id="pc-input" placeholder="Write a message…">
            <button type="submit" class="btn btn-primary rounded-circle p-0 pc-send" aria-label="Send"><svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M22 2L11 13M22 2l-7 20-4-9-9-4z"/></svg></button>
          </form>
        </div>
        <button type="button" class="btn btn-primary rounded-circle p-0 pc-fab" id="pc-open" aria-controls="pc-box" aria-expanded="true" aria-label="Close chat">
          <svg class="pc-ic-chat" width="26" height="26" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M21 12a8 8 0 01-11.6 7.1L4 20l1-4.6A8 8 0 1121 12z"/></svg>
          <svg class="pc-ic-x" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" aria-hidden="true"><path d="M6 6l12 12M18 6L6 18"/></svg>
        </button>
      </div>
  </div>
</section>

/* Web Designer Wall library style — shared base for every Bootstrap 5 snippet.
   Indigo accent, Plus Jakarta Sans, soft cards, pill buttons. Works in light and dark. */
@import url("https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap");

:root,
[data-bs-theme="light"] {
  --wdw-font: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --bs-body-font-family: var(--wdw-font);
  --bs-primary: #4f46e5;
  --bs-primary-rgb: 79, 70, 229;
  --bs-primary-text-emphasis: #3730a3;
  --bs-primary-bg-subtle: #eef2ff;
  --bs-primary-border-subtle: #c7d2fe;
  --bs-link-color: #4f46e5;
  --bs-link-color-rgb: 79, 70, 229;
  --bs-link-hover-color: #4338ca;
  --bs-link-hover-color-rgb: 67, 56, 202;
  --bs-focus-ring-color: rgba(79, 70, 229, 0.25);
  --bs-border-radius: 0.75rem;
  --bs-border-radius-lg: 1rem;
  --bs-border-radius-xl: 1.25rem;
  --wdw-radius-card: 1.25rem;
  --wdw-shadow: 0 1px 2px rgba(16, 24, 40, 0.05), 0 16px 40px -16px rgba(16, 24, 40, 0.22);
  --wdw-shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.06), 0 4px 12px -4px rgba(16, 24, 40, 0.12);
  --wdw-stage: #f5f6fb;
}

[data-bs-theme="dark"] {
  --bs-primary: #818cf8;
  --bs-primary-rgb: 129, 140, 248;
  --bs-primary-text-emphasis: #c7d2fe;
  --bs-primary-bg-subtle: rgba(129, 140, 248, 0.14);
  --bs-primary-border-subtle: rgba(129, 140, 248, 0.35);
  --bs-link-color: #a5b4fc;
  --bs-link-color-rgb: 165, 180, 252;
  --bs-link-hover-color: #c7d2fe;
  --bs-link-hover-color-rgb: 199, 210, 254;
  --bs-focus-ring-color: rgba(129, 140, 248, 0.35);
  --wdw-shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 16px 40px -16px rgba(0, 0, 0, 0.7);
  --wdw-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4), 0 4px 12px -4px rgba(0, 0, 0, 0.5);
  --wdw-stage: #0f1117;
}

body { font-family: var(--wdw-font); -webkit-font-smoothing: antialiased; }

/* Bootstrap compiles its blue into these components; point them at the accent. */
.btn-primary {
  --bs-btn-bg: var(--bs-primary); --bs-btn-border-color: var(--bs-primary);
  --bs-btn-hover-bg: #4338ca; --bs-btn-hover-border-color: #4338ca;
  --bs-btn-active-bg: #3730a3; --bs-btn-active-border-color: #3730a3;
  --bs-btn-disabled-bg: var(--bs-primary); --bs-btn-disabled-border-color: var(--bs-primary);
  --bs-btn-focus-shadow-rgb: var(--bs-primary-rgb);
}
[data-bs-theme="dark"] .btn-primary { --bs-btn-color: #0f1117; --bs-btn-hover-bg: #a5b4fc; --bs-btn-hover-border-color: #a5b4fc; --bs-btn-hover-color: #0f1117; --bs-btn-active-color: #0f1117; }
.btn-outline-primary {
  --bs-btn-color: var(--bs-primary); --bs-btn-border-color: var(--bs-primary);
  --bs-btn-hover-bg: var(--bs-primary); --bs-btn-hover-border-color: var(--bs-primary);
  --bs-btn-active-bg: var(--bs-primary); --bs-btn-active-border-color: var(--bs-primary);
  --bs-btn-focus-shadow-rgb: var(--bs-primary-rgb);
}
.btn { --bs-btn-font-weight: 600; min-height: 44px; display: inline-flex; align-items: center; justify-content: center; gap: .5rem; }
.btn-sm { min-height: 36px; }
.form-control, .form-select { min-height: 44px; border-radius: .75rem; }
.form-control:focus, .form-select:focus, .form-check-input:focus { border-color: rgba(var(--bs-primary-rgb), .6); box-shadow: 0 0 0 .25rem var(--bs-focus-ring-color); }
.form-check-input:checked { background-color: var(--bs-primary); border-color: var(--bs-primary); }
.nav-pills { --bs-nav-pills-link-active-bg: var(--bs-primary); }
.nav { --bs-nav-link-color: var(--bs-secondary-color); --bs-nav-link-hover-color: var(--bs-emphasis-color); }
.pagination { --bs-pagination-active-bg: var(--bs-primary); --bs-pagination-active-border-color: var(--bs-primary); --bs-pagination-color: var(--bs-body-color); --bs-pagination-focus-box-shadow: 0 0 0 .25rem var(--bs-focus-ring-color); }
.progress, .progress-stacked { --bs-progress-bar-bg: var(--bs-primary); }
.list-group { --bs-list-group-active-bg: var(--bs-primary); --bs-list-group-active-border-color: var(--bs-primary); }
.dropdown-menu { --bs-dropdown-link-active-bg: var(--bs-primary); border-radius: .875rem; box-shadow: var(--wdw-shadow-sm); }
.accordion { --bs-accordion-active-bg: var(--bs-primary-bg-subtle); --bs-accordion-active-color: var(--bs-primary-text-emphasis); --bs-accordion-btn-focus-box-shadow: 0 0 0 .25rem var(--bs-focus-ring-color); }
.badge { font-weight: 600; }

/* Library building blocks — use these instead of re-inventing them per snippet. */
.wdw-stage { min-height: 100vh; display: flex; align-items: center; background: var(--wdw-stage); padding-block: 3rem; }
.wdw-card { background: var(--bs-body-bg); border: 1px solid var(--bs-border-color-translucent); border-radius: var(--wdw-radius-card); box-shadow: var(--wdw-shadow); }
.wdw-card-sm { background: var(--bs-body-bg); border: 1px solid var(--bs-border-color-translucent); border-radius: 1rem; box-shadow: var(--wdw-shadow-sm); }
.wdw-aurora { position: relative; color: #fff; background: radial-gradient(60% 55% at 100% 0, #818cf8 0, transparent 70%), radial-gradient(65% 60% at 0 100%, #ec4899 0, transparent 65%), #1e1b4b; }
.wdw-eyebrow { display: inline-block; font-size: .75rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--bs-primary); }
.wdw-heading { font-weight: 800; letter-spacing: -.02em; color: var(--bs-emphasis-color); }
.wdw-muted { color: var(--bs-secondary-color); }
.wdw-icon { width: 2.75rem; height: 2.75rem; flex: none; display: inline-flex; align-items: center; justify-content: center; border-radius: .875rem; background: var(--bs-primary-bg-subtle); color: var(--bs-primary); }

/* Component */
.pc-box{width:100%;max-width:400px}
.pc-wrap{width:100%}
.pc-wrap>.pc-fab{margin-top:0}
.pc-fab{width:60px;height:60px;box-shadow:0 8px 24px -6px rgba(var(--bs-primary-rgb),.6)}
.pc-fab[aria-expanded=false] .pc-ic-x,.pc-fab[aria-expanded=true] .pc-ic-chat{display:none}
.pc-typing{display:inline-flex;gap:4px;align-self:flex-start;padding:.7rem .9rem;border-radius:1.1rem;background:var(--bs-secondary-bg)}
.pc-typing span{width:6px;height:6px;border-radius:50%;background:var(--bs-secondary-color);animation:pc-bounce 1.2s infinite}
.pc-typing span:nth-child(2){animation-delay:.15s}.pc-typing span:nth-child(3){animation-delay:.3s}
@keyframes pc-bounce{0%,60%,100%{transform:translateY(0);opacity:.5}30%{transform:translateY(-4px);opacity:1}}
@media (prefers-reduced-motion:reduce){.pc-typing span{animation:none}}
.pc-log{height:340px;overflow-y:auto;background:var(--bs-tertiary-bg)}
.pc-online{position:absolute;right:0;bottom:0;width:12px;height:12px;border-radius:50%;background:var(--bs-success);border:2px solid var(--bs-body-bg)}
.pc-msg{display:flex;flex-direction:column;align-items:flex-start;max-width:82%}
.pc-me{align-self:flex-end;align-items:flex-end}
.pc-bubble{padding:.6rem .9rem;border-radius:1.1rem;background:var(--bs-secondary-bg);font-size:.92rem}
.pc-me .pc-bubble{background:var(--bs-primary);border-color:var(--bs-primary);color:#fff;border-radius:1.1rem}
[data-bs-theme="dark"] .pc-me .pc-bubble{color:#0f1117}
.pc-time{font-size:.75rem;color:var(--bs-secondary-color);margin-top:.2rem;padding:0 .25rem}
.pc-send{width:44px;height:44px;flex:none}
.pc-stage .btn:focus-visible{outline:2px solid var(--bs-primary);outline-offset:2px}
.pc-box[hidden]{display:none!important}
.pc-icon{--bs-btn-color:var(--bs-body-color);--bs-btn-bg:var(--bs-tertiary-bg);--bs-btn-border-color:transparent;--bs-btn-hover-bg:var(--bs-secondary-bg);--bs-btn-hover-color:var(--bs-emphasis-color);--bs-btn-hover-border-color:transparent;--bs-btn-active-bg:var(--bs-secondary-bg);--bs-btn-active-color:var(--bs-emphasis-color);--bs-btn-active-border-color:transparent;min-width:36px}
.pc-typing[hidden]{display:none}

(function () {
  function initChatPopup() {
    var box = document.getElementById('pc-box');
    var openBtn = document.getElementById('pc-open');
    if (!box || !openBtn) return;
    var log = document.getElementById('pc-log');
    var form = document.getElementById('pc-form');
    var input = document.getElementById('pc-input');

    function setOpen(open, focus) {
      box.hidden = !open;
      openBtn.setAttribute('aria-expanded', String(open));
      openBtn.setAttribute('aria-label', open ? 'Close chat' : 'Open chat');
      if (open && focus) input.focus();
    }
    function time() {
      var d = new Date();
      return d.getHours() + ':' + String(d.getMinutes()).padStart(2, '0');
    }
    function add(text, mine) {
      var wrap = document.createElement('div');
      wrap.className = 'pc-msg' + (mine ? ' pc-me' : '');
      var b = document.createElement('div');
      b.className = 'pc-bubble';
      b.textContent = text;
      var t = document.createElement('span');
      t.className = 'pc-time';
      t.textContent = time();
      wrap.append(b, t);
      log.appendChild(wrap);
      log.scrollTop = log.scrollHeight;
    }

    openBtn.addEventListener('click', function () { setOpen(box.hidden, true); });
    document.getElementById('pc-close').addEventListener('click', function () { setOpen(false); openBtn.focus(); });
    document.getElementById('pc-clear').addEventListener('click', function () {
      log.querySelectorAll('.pc-msg,.pc-typing').forEach(function (m) { m.remove(); });
    });
    var typing = box.querySelector('.pc-typing');
    function reply(v) {
      add(v, true);
      if (typing) { log.appendChild(typing); typing.hidden = false; log.scrollTop = log.scrollHeight; }
      setTimeout(function () {
        if (typing) typing.hidden = true;
        add('Thanks! Let me look into that for you.', false);
      }, 1200);
    }
    box.querySelectorAll('[data-reply]').forEach(function (b) {
      b.addEventListener('click', function () { reply(b.getAttribute('data-reply')); });
    });
    form.addEventListener('submit', function (e) {
      e.preventDefault();
      var v = input.value.trim();
      if (!v) return;
      input.value = '';
      reply(v);
    });
    log.scrollTop = log.scrollHeight;
  }
  initChatPopup();
})();