.invisalign-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
  margin-top: 30px;
}

.invisalign-card {
  background: #ffffff;
  padding: 24px;
  border-radius: 16px;
  box-shadow: 0 10px 28px rgba(0,0,0,0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.invisalign-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 14px 38px rgba(0,0,0,0.12);
}

.invisalign-card h3 {
  color: #1b5e20;
  margin-bottom: 12px;
  font-size: 1.25rem;
}

.invisalign-card ul,
.invisalign-card ol {
  padding-left: 18px;
}

.invisalign-card li {
  margin-bottom: 8px;
}

.intro-card {
  max-width: 820px;
  margin: 0 auto 30px;
  text-align: center;
}