Bootstrap 5 Accordion with Expand/Collapse All

<section class="faq-section wdw-stage"><div class="container"><div class="faq-wrap mx-auto"><div class="row g-4 g-lg-5 align-items-start">
<div class="col-lg-5"><span class="badge rounded-pill bg-primary-subtle text-primary-emphasis mb-3">FAQ</span><h1 class="h2 fw-bold text-body-emphasis mb-2">Frequently asked questions</h1><p class="text-body-secondary mb-4">Quick answers to the things people ask most.</p>
<button type="button" class="btn btn-outline-primary rounded-pill px-4 faq-toggle" id="faqToggleAll" aria-pressed="false">Expand all</button>
<div class="card wdw-card border-0 mt-4 d-none d-lg-block"><div class="card-body p-4"><span class="faq-help mb-3" aria-hidden="true"><svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round"><path d="M21 12a8 8 0 0 1-11.6 7.1L4 20l1-4.6A8 8 0 1 1 21 12z"/></svg></span><h2 class="h6 fw-bold mb-1">Still have questions?</h2><p class="small text-body-secondary mb-3">Our team replies within one business day.</p><a href="#" class="btn btn-primary btn-sm rounded-pill px-3">Contact support</a></div></div></div>
<div class="col-lg-7"><div class="accordion faq-acc" id="faqAccordion">
<div class="accordion-item wdw-card-sm border-0 mb-3 overflow-hidden"><h3 class="accordion-header"><button class="accordion-button fw-semibold shadow-none gap-3" type="button" data-bs-toggle="collapse" data-bs-target="#faq0" aria-expanded="true" aria-controls="faq0"><span class="faq-num" aria-hidden="true">01</span><span class="flex-grow-1">How does the free trial work?</span></button></h3><div id="faq0" class="accordion-collapse collapse show"><div class="accordion-body text-body-secondary pt-0">You get full access for 14 days with no card required. If you decide not to continue, your workspace simply switches to read-only.</div></div></div>
<div class="accordion-item wdw-card-sm border-0 mb-3 overflow-hidden"><h3 class="accordion-header"><button class="accordion-button collapsed fw-semibold shadow-none gap-3" type="button" data-bs-toggle="collapse" data-bs-target="#faq1" aria-expanded="false" aria-controls="faq1"><span class="faq-num" aria-hidden="true">02</span><span class="flex-grow-1">Can I change plans later?</span></button></h3><div id="faq1" class="accordion-collapse collapse"><div class="accordion-body text-body-secondary pt-0">Yes. Upgrade or downgrade at any time from billing settings. Changes are prorated to the day.</div></div></div>
<div class="accordion-item wdw-card-sm border-0 mb-3 overflow-hidden"><h3 class="accordion-header"><button class="accordion-button collapsed fw-semibold shadow-none gap-3" type="button" data-bs-toggle="collapse" data-bs-target="#faq2" aria-expanded="false" aria-controls="faq2"><span class="faq-num" aria-hidden="true">03</span><span class="flex-grow-1">Do you offer discounts for nonprofits?</span></button></h3><div id="faq2" class="accordion-collapse collapse"><div class="accordion-body text-body-secondary pt-0">Registered nonprofits and open-source maintainers get 50% off. Email us with a link to your organisation.</div></div></div>
<div class="accordion-item wdw-card-sm border-0 mb-3 overflow-hidden"><h3 class="accordion-header"><button class="accordion-button collapsed fw-semibold shadow-none gap-3" type="button" data-bs-toggle="collapse" data-bs-target="#faq3" aria-expanded="false" aria-controls="faq3"><span class="faq-num" aria-hidden="true">04</span><span class="flex-grow-1">Where is my data stored?</span></button></h3><div id="faq3" class="accordion-collapse collapse"><div class="accordion-body text-body-secondary pt-0">Data is hosted in the EU by default, encrypted at rest and in transit, with daily backups kept for 30 days.</div></div></div>
<div class="accordion-item wdw-card-sm border-0 mb-3 overflow-hidden"><h3 class="accordion-header"><button class="accordion-button collapsed fw-semibold shadow-none gap-3" type="button" data-bs-toggle="collapse" data-bs-target="#faq4" aria-expanded="false" aria-controls="faq4"><span class="faq-num" aria-hidden="true">05</span><span class="flex-grow-1">How do I cancel?</span></button></h3><div id="faq4" class="accordion-collapse collapse"><div class="accordion-body text-body-secondary pt-0">Open Settings, then Billing, and choose Cancel plan. Your account stays active until the end of the billing period.</div></div></div>
</div>
<p class="d-lg-none text-center text-body-secondary small mt-4 mb-0">Still have questions? <a href="#" class="fw-medium text-decoration-none">Contact support</a></p></div>
</div></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 */
.faq-wrap { max-width: 1040px; }
.faq-toggle { min-height: 44px; }
.faq-acc .accordion-item { background: var(--bs-body-bg); border-left: 4px solid transparent !important; transition: border-color .2s; }
.faq-acc .accordion-item:has(.accordion-button:not(.collapsed)) { border-left-color: var(--bs-primary) !important; }
.faq-acc .accordion-button { background: transparent; color: var(--bs-emphasis-color); padding: 1.1rem 1.25rem; min-height: 44px; }
.faq-acc .accordion-button:not(.collapsed) { background: transparent; color: var(--bs-primary-text-emphasis); }
.faq-acc .accordion-button::after { background-image: none; width: 1.75rem; height: 1.75rem; flex: none; border-radius: 50%; background-color: var(--bs-secondary-bg); transform: none; content: "+"; display: grid; place-items: center; font-size: 1.25rem; font-weight: 500; line-height: 1; color: var(--bs-emphasis-color); transition: transform .25s; }
.faq-acc .accordion-button:not(.collapsed)::after { content: "+"; transform: rotate(135deg); background-color: var(--bs-primary); color: #fff; }
.faq-acc .accordion-button:focus-visible { outline: 2px solid var(--bs-primary); outline-offset: -2px; }
.faq-acc .accordion-collapse { background: var(--bs-body-bg); }
.faq-acc .accordion-body { padding: 0 1.25rem 1.5rem 4.25rem; }
.faq-num { font-size: .8125rem; font-weight: 700; color: var(--bs-primary); width: 1.75rem; flex: none; }
.faq-help { width: 2.5rem; height: 2.5rem; border-radius: .8rem; display: grid; place-items: center; background: var(--bs-primary-bg-subtle); color: var(--bs-primary-text-emphasis); }
@media (max-width: 575.98px) { .faq-acc .accordion-body { padding-left: 1.25rem; } .faq-num { width: 1.4rem; } .faq-acc .accordion-button { gap: .6rem !important; padding-inline: 1rem; } }
@media (prefers-reduced-motion: reduce) { .faq-acc .accordion-button::after, .faq-acc .accordion-item { transition: none; } }

(function () {
  function initFaqToggleAll() {
    var btn = document.getElementById('faqToggleAll');
    var panels = document.querySelectorAll('#faqAccordion .accordion-collapse');
    if (!btn || !panels.length) return;
    function allOpen() { return Array.prototype.every.call(panels, function (p) { return p.classList.contains('show'); }); }
    function sync() {
      var open = allOpen();
      btn.textContent = open ? 'Collapse all' : 'Expand all';
      btn.setAttribute('aria-pressed', open ? 'true' : 'false');
    }
    btn.addEventListener('click', function () {
      var open = allOpen();
      panels.forEach(function (p) {
        var inst = bootstrap.Collapse.getOrCreateInstance(p, { toggle: false });
        open ? inst.hide() : inst.show();
      });
    });
    panels.forEach(function (p) {
      p.addEventListener('shown.bs.collapse', sync);
      p.addEventListener('hidden.bs.collapse', sync);
    });
    sync();
  }
  initFaqToggleAll();
})();