Bootstrap 5 Sticky Contact Form Widget

<section class="sc-section wdw-stage position-relative overflow-hidden">
  <div class="container py-4">
    <div class="row align-items-start g-5 w-100">
      <div class="col-lg-7">
        <span class="wdw-eyebrow mb-3">Acme Studio</span>
        <h1 class="display-5 wdw-heading mb-3">Websites that earn their keep.</h1>
        <p class="lead text-body-secondary mb-4">Strategy, design and development for ambitious small businesses. Questions? The chat in the corner is always one tap away.</p>
        <div class="d-flex gap-2 flex-wrap mb-5"><a href="#" class="btn btn-primary rounded-pill px-4">See our work</a><a href="#" class="btn btn-outline-secondary text-body rounded-pill px-4">Pricing</a></div>
        <div class="row g-3 text-body-secondary small">
          <div class="col-sm-4"><div class="fw-bold fs-3 text-body-emphasis">120+</div>Launches shipped</div>
          <div class="col-sm-4"><div class="fw-bold fs-3 text-body-emphasis">4.9/5</div>Client rating</div>
          <div class="col-sm-4"><div class="fw-bold fs-3 text-body-emphasis">2 weeks</div>Typical kickoff</div>
        </div>
      </div>
      <div class="col-lg-5 d-none d-lg-block">
        <div class="wdw-card-sm p-3 sc-showcase d-flex align-items-center gap-3" aria-hidden="true">
          <div class="wdw-aurora rounded-3 flex-shrink-0" style="width:72px;height:72px"></div>
          <div class="flex-grow-1"><div class="fw-semibold">Fieldly redesign</div><div class="small text-body-secondary">Launched in 6 weeks</div></div>
          <span class="badge rounded-pill bg-success-subtle text-success-emphasis">+38%</span>
        </div>
      </div>
    </div>
  </div>

  <div class="sc-widget" id="scWidget">
    <div class="sc-panel wdw-card overflow-hidden" id="scPanel" role="dialog" aria-labelledby="scTitle">
      <div class="wdw-aurora d-flex align-items-center gap-3 p-3">
        <img src="https://i.pravatar.cc/80?img=47" width="40" height="40" class="rounded-circle border border-2 border-white" alt="">
        <div class="flex-grow-1 lh-sm"><div class="fw-semibold" id="scTitle">Send us a message</div><div class="small" style="color:rgba(255,255,255,.8)">We usually reply in minutes</div></div>
        <button type="button" class="btn-close btn-close-white position-relative" id="scClose" aria-label="Close contact form"></button>
      </div>
      <form class="p-3 d-grid gap-2" id="scForm" novalidate>
        <div class="form-floating"><input type="text" class="form-control rounded-3" id="scName" placeholder="Name" required><label for="scName">Name</label></div>
        <div class="form-floating"><input type="email" class="form-control rounded-3" id="scEmail" placeholder="Email" required><label for="scEmail">Email</label></div>
        <div class="form-floating"><textarea class="form-control rounded-3" id="scMsg" placeholder="Message" style="height:90px" required></textarea><label for="scMsg">Message</label></div>
        <button type="submit" class="btn btn-primary rounded-pill">Send message</button>
        <div class="small text-success d-none text-center" id="scOk" role="status">Thanks! We'll be in touch soon.</div>
      </form>
    </div>
    <button type="button" class="sc-fab btn btn-primary rounded-circle shadow d-inline-flex align-items-center justify-content-center p-0" id="scToggle" aria-expanded="true" aria-controls="scPanel" aria-label="Open contact form">
      <svg width="24" height="24" 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 0 1-11.6 7.1L3 21l1.9-6.4A8 8 0 1 1 21 12z"/></svg>
    </button>
  </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 */
.sc-widget { position: fixed; right: 1rem; bottom: 1rem; z-index: 1040; display: flex; flex-direction: column; align-items: flex-end; gap: .75rem; }
.sc-panel { width: min(340px, calc(100vw - 2rem)); transform-origin: bottom right; transition: opacity .25s ease, transform .25s ease, visibility .25s; }
.sc-widget:not(.is-open) .sc-panel { opacity: 0; transform: translateY(12px) scale(.96); visibility: hidden; pointer-events: none; }
@media (prefers-reduced-motion: reduce) { .sc-panel { transition: none; } }
.sc-fab { width: 56px; height: 56px; }
.sc-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--bs-border-color); }

function initStickyContact() {
  var widget = document.getElementById('scWidget');
  var toggle = document.getElementById('scToggle');
  var close = document.getElementById('scClose');
  var form = document.getElementById('scForm');
  if (!widget || !toggle) return;
  function set(open) {
    widget.classList.toggle('is-open', open);
    toggle.setAttribute('aria-expanded', open);
    if (open) { var f = document.getElementById('scName'); if (f) f.focus({ preventScroll: true }); }
  }
  var startOpen = window.matchMedia('(min-width: 576px)').matches;
  widget.classList.toggle('is-open', startOpen);
  toggle.setAttribute('aria-expanded', startOpen);
  toggle.addEventListener('click', function () { var o = !widget.classList.contains('is-open'); set(o); if (!o) toggle.focus(); });
  close.addEventListener('click', function () { set(false); toggle.focus(); });
  document.addEventListener('keydown', function (e) {
    if (e.key === 'Escape' && widget.classList.contains('is-open')) { set(false); toggle.focus(); }
  });
  form.addEventListener('submit', function (e) {
    e.preventDefault();
    form.classList.add('was-validated');
    if (!form.checkValidity()) return;
    document.getElementById('scOk').classList.remove('d-none');
    form.reset(); form.classList.remove('was-validated');
  });
}
initStickyContact();