Bootstrap 5 Warning Popup Modal

<section class="wdw-stage wdw-warn-stage">
  <div class="container" style="max-width: 62rem;">
    <div class="wdw-card-sm wdw-warn-shell p-4" aria-hidden="true">
      <div class="d-flex gap-2 mb-4"><span class="wdw-warn-dot"></span><span class="wdw-warn-dot"></span><span class="wdw-warn-dot"></span></div>
      <div class="row g-3">
        <div class="col-4"><div class="wdw-warn-bar" style="height:6rem"></div></div>
        <div class="col-4"><div class="wdw-warn-bar" style="height:6rem"></div></div>
        <div class="col-4"><div class="wdw-warn-bar" style="height:6rem"></div></div>
        <div class="col-12"><div class="wdw-warn-bar" style="height:7rem"></div></div>
      </div>
    </div>
    <div class="text-center mt-4">
      <button type="button" class="btn btn-primary rounded-pill px-4" data-bs-toggle="modal" data-bs-target="#warningModal">Open warning modal</button>
    </div>
  </div>

  <div class="modal fade wdw-warning" id="warningModal" tabindex="-1" aria-labelledby="warningTitle" aria-describedby="warningDesc" aria-hidden="true" data-wdw-autoshow>
    <div class="modal-dialog modal-dialog-centered">
      <div class="modal-content border-0 text-center p-3 p-sm-4">
        <button type="button" class="btn-close position-absolute top-0 end-0 m-3" data-bs-dismiss="modal" aria-label="Close"></button>
        <div class="modal-body pt-4">
          <span class="wdw-warning-icon mx-auto mb-4" aria-hidden="true">
            <svg width="38" height="38" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.9" stroke-linecap="round" stroke-linejoin="round"><path d="M10.3 3.9 1.8 18a2 2 0 0 0 1.7 3h17a2 2 0 0 0 1.7-3L13.7 3.9a2 2 0 0 0-3.4 0z"/><path d="M12 9v4M12 17h.01"/></svg>
          </span>
          <h3 class="wdw-heading h3 mb-2" id="warningTitle">Something went wrong</h3>
          <p class="wdw-muted mb-3" id="warningDesc">An unexpected error has occurred. Please try again in a moment, and contact support if it keeps happening.</p>
          <div class="wdw-warn-ref d-inline-flex align-items-center gap-2 mb-3">
            <span class="badge text-bg-warning rounded-pill">503</span>
            <code id="warnRef">ref 7f3a-91c2</code>
            <button type="button" class="btn btn-sm btn-outline-secondary rounded-pill" id="warnCopy" aria-label="Copy error reference">Copy</button>
          </div>
          <div class="text-start">
            <button type="button" class="btn btn-link btn-sm p-0 link-secondary text-decoration-none" data-bs-toggle="collapse" data-bs-target="#warnDetails" aria-expanded="false" aria-controls="warnDetails">View details</button>
            <div class="collapse" id="warnDetails">
              <p class="small wdw-muted mt-2 mb-0">The service did not respond in time. Your work is saved and nothing was lost.</p>
            </div>
          </div>
          <div class="d-grid gap-2 mt-4">
            <button type="button" class="btn btn-primary rounded-pill" data-bs-dismiss="modal">Try again</button>
            <a href="#" class="btn btn-link link-secondary text-decoration-none">Contact support</a>
          </div>
        </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 */
.wdw-warn-shell { filter: blur(2px); opacity: .85; }
.wdw-warn-dot { width: .7rem; height: .7rem; border-radius: 50%; background: var(--bs-border-color); }
.wdw-warn-bar { border-radius: .75rem; background: var(--bs-tertiary-bg); border: 1px solid var(--bs-border-color-translucent); }
.wdw-warning .modal-dialog { max-width: 30rem; }
.wdw-warning .modal-content { border-radius: 1.5rem; box-shadow: 0 30px 80px -20px rgba(15, 17, 23, .45); }
.wdw-warning-icon {
  width: 5rem; height: 5rem; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--bs-warning-text-emphasis);
  background: var(--bs-warning-bg-subtle);
  border: 1px solid var(--bs-warning-border-subtle);
  box-shadow: 0 0 0 .5rem rgba(var(--bs-warning-rgb), .1);
}
.wdw-warn-ref { padding: .25rem .35rem .25rem .5rem; border: 1px solid var(--bs-border-color); border-radius: 999px; background: var(--bs-tertiary-bg); }
.wdw-warn-ref code { color: var(--bs-body-color); font-size: .85rem; }
.wdw-warn-ref .btn { min-height: 32px; }

(function initWarningModal() {
  var el = document.getElementById('warningModal');
  if (!el || !window.bootstrap) return;
  var copy = document.getElementById('warnCopy');
  if (copy) copy.addEventListener('click', function () {
    var text = document.getElementById('warnRef').textContent;
    if (navigator.clipboard) navigator.clipboard.writeText(text).catch(function () {});
    copy.textContent = 'Copied';
    setTimeout(function () { copy.textContent = 'Copy'; }, 1500);
  });
  // Preview only: remove the data-wdw-autoshow attribute to open the dialog from the button alone.
  if (el.hasAttribute('data-wdw-autoshow')) bootstrap.Modal.getOrCreateInstance(el).show();
})();