Bootstrap 5 Simple Contact Form

<section class="wdw-stage">
  <div class="container" style="max-width: 600px">
    <div class="wdw-card overflow-hidden">
      <header class="wdw-aurora contact-head d-flex align-items-center gap-3 p-4 px-md-5">
        <span class="contact-icon"><svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.9" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><rect x="3" y="5" width="18" height="14" rx="3"/><path d="m4 8 8 6 8-6"/></svg></span>
        <div>
          <h1 class="wdw-heading h3 mb-1">Contact us</h1>
          <p class="mb-0 small contact-sub">Questions, ideas or feedback? Drop us a line.</p>
        </div>
      </header>
      <form id="simple-contact" class="p-4 p-md-5" novalidate>
        <div class="row g-3">
          <fieldset class="col-12 m-0">
            <legend class="form-label fw-semibold small float-none">What is this about?</legend>
            <div class="d-flex flex-wrap gap-2">
              <input type="radio" class="btn-check" name="sc-topic" id="sc-t1" value="general" checked>
              <label class="btn btn-outline-primary rounded-pill" for="sc-t1">General</label>
              <input type="radio" class="btn-check" name="sc-topic" id="sc-t2" value="support">
              <label class="btn btn-outline-primary rounded-pill" for="sc-t2">Support</label>
              <input type="radio" class="btn-check" name="sc-topic" id="sc-t3" value="sales">
              <label class="btn btn-outline-primary rounded-pill" for="sc-t3">Sales</label>
              <input type="radio" class="btn-check" name="sc-topic" id="sc-t4" value="feedback">
              <label class="btn btn-outline-primary rounded-pill" for="sc-t4">Feedback</label>
            </div>
          </fieldset>
          <div class="col-sm-6">
            <label for="sc-name" class="form-label fw-semibold small">Name <span class="text-danger" aria-hidden="true">*</span></label>
            <input type="text" class="form-control" id="sc-name" placeholder="Jane Cooper" autocomplete="name" required>
            <div class="invalid-feedback">Please enter your name.</div>
          </div>
          <div class="col-sm-6">
            <label for="sc-email" class="form-label fw-semibold small">Email <span class="text-danger" aria-hidden="true">*</span></label>
            <input type="email" class="form-control" id="sc-email" placeholder="[email protected]" autocomplete="email" required>
            <div class="invalid-feedback">Please enter a valid email.</div>
          </div>
          <div class="col-12">
            <div class="d-flex justify-content-between align-items-baseline">
              <label for="sc-msg" class="form-label fw-semibold small">Message <span class="text-danger" aria-hidden="true">*</span></label>
              <span class="small wdw-muted" id="sc-count" aria-hidden="true">0 / 500</span>
            </div>
            <textarea class="form-control contact-msg" id="sc-msg" rows="5" maxlength="500" placeholder="Tell us more" required></textarea>
            <div class="invalid-feedback">Please write a message.</div>
          </div>
          <div class="col-12">
            <button type="submit" class="btn btn-primary rounded-pill w-100">Send message</button>
            <p class="small wdw-muted text-center mt-3 mb-0"><svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true" class="me-1 align-text-bottom"><circle cx="12" cy="12" r="9"/><path d="M12 7v5l3 2"/></svg>We reply within one business day. Fields marked * are required.</p>
            <p class="text-success text-center fw-semibold small mt-2 mb-0" id="sc-status" role="status" aria-live="polite"></p>
          </div>
        </div>
      </form>
    </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 */
.contact-head .wdw-heading { color: #fff; }
.contact-sub { color: rgba(255,255,255,.8); }
.contact-icon { width: 3rem; height: 3rem; flex: none; display: inline-flex; align-items: center; justify-content: center; border-radius: .875rem; background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.22); }
.contact-msg { height: auto; min-height: 9rem; resize: vertical; }
.contact-head ~ form .form-control::placeholder { color: var(--bs-secondary-color); opacity: .75; }
.btn-check:focus-visible + .btn { box-shadow: 0 0 0 .25rem var(--bs-focus-ring-color); }
[data-bs-theme="dark"] .btn-check:checked + .btn-outline-primary { color: #0f1117; }

(function () {
  function initSimpleContact() {
    var form = document.getElementById('simple-contact');
    if (!form) return;
    var status = document.getElementById('sc-status');
    var msg = document.getElementById('sc-msg');
    var count = document.getElementById('sc-count');
    function updateCount() { if (count && msg) count.textContent = msg.value.length + ' / ' + msg.maxLength; }
    if (msg) msg.addEventListener('input', function () { updateCount(); if (status) status.textContent = ''; });
    form.addEventListener('submit', function (e) {
      e.preventDefault();
      form.classList.add('was-validated');
      if (!form.checkValidity()) { if (status) status.textContent = ''; return; }
      form.reset();
      form.classList.remove('was-validated');
      updateCount();
      if (status) status.textContent = 'Message sent. Thank you!';
    });
  }
  initSimpleContact();
})();