.subsection-title.demo-subtitle {
    margin-top: 4rem;
    margin-bottom: -1rem;
}
.subsection-title.demo-subtitle:first-of-type {
    margin-top: 0;
}
.demo-grid {
  margin-top: 3rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}
.demo-card {
  position: relative;
  border-radius: 12px;
  padding: 2.5rem 2rem;
  text-align: center;
  text-decoration: none;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  background-size: cover;
  background-position: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 280px;
}
.demo-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.5);
}
.demo-card-icon {
  font-size: 3rem;
  color: var(--highlight, #8a2be2);
  margin-bottom: 1.5rem;
}
.demo-card h3 {
  font-family: "Poppins", sans-serif;
  color: #ffffff;
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  text-shadow: 0 2px 5px rgba(0, 0, 0, 0.7);
}
.demo-card p {
  font-size: 1rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.85);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.7);
}