.demo-hero {
  margin-top: calc(-1 * var(--header-offset));
  padding: calc(var(--header-offset) + 6rem) 0 8rem;
  background: radial-gradient(circle at 15% 0%, rgba(0, 131, 255, 0.15), transparent 50%), var(--color-bg);
  text-align: center;
}

.demo-hero h1 {
  font-size: clamp(3rem, 6vw, 4.5rem);
  margin: 1.25rem auto 1.5rem;
  letter-spacing: -0.02em;
  font-weight: 700;
  max-width: 900px;
}

.demo-hero p {
  max-width: 700px;
  color: var(--color-muted);
  margin: 0 auto 2.5rem;
  font-size: 1.25rem;
  line-height: 1.6;
}

.demo-section {
  padding: clamp(4rem, 8vw, 7rem) 0;
}

.demo-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: start;
}

.demo-form,
.demo-card,
.demo-cta {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: 0 16px 40px rgba(0, 12, 42, 0.05);
  padding: 3rem;
}

.demo-card {
  margin-bottom: 2rem;
  padding: 2.5rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.demo-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 48px rgba(0, 12, 42, 0.08);
}

.demo-cta {
  background: var(--gradient-soft);
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.demo-cta h2 {
  font-size: 2.2rem;
  margin-top: 0;
  margin-bottom: 1rem;
}

.demo-cta p {
  font-size: 1.15rem;
  color: var(--color-muted);
  margin-bottom: 2rem;
}

.demo-form h2,
.demo-card h2 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-top: 0;
  margin-bottom: 2rem;
  letter-spacing: -0.01em;
}

.demo-form label {
  display: block;
  font-weight: 600;
  margin: 1rem 0 0.5rem;
  color: var(--color-text);
}

.demo-form input,
.demo-form select,
.demo-form textarea {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 0.85rem 1rem;
  font: inherit;
  transition: border-color 0.2s, box-shadow 0.2s, background-color 0.2s;
  background: var(--color-slate-50);
}

.demo-form input:focus,
.demo-form select:focus,
.demo-form textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-soft);
  background: #fff;
}

.demo-form button {
  width: 100%;
  margin-top: 1.5rem;
  padding: 1rem 2rem;
  font-size: 1.1rem;
}

.demo-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 1.5rem 0 0.5rem;
}

.demo-card p {
  color: var(--color-muted);
  line-height: 1.6;
  margin: 0;
}

.demo-card ul {
  padding-left: 1.2rem;
  color: var(--color-muted);
  line-height: 1.7;
}

.demo-card ul li {
  margin-bottom: 0.75rem;
}

@media (max-width: 920px) {
  .demo-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}