.internal-demo {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 30px;
  border-radius: 12px;
  margin: 20px 0;
  box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.internal-demo h4 {
  margin-top: 0;
  font-size: 24px;
  text-align: center;
}

.card-container {
  display: flex;
  gap: 20px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.demo-card {
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  padding: 20px;
  border-radius: 8px;
  flex: 1;
  min-width: 200px;
  border: 1px solid rgba(255,255,255,0.2);
}

.demo-card h5 {
  margin: 0 0 10px 0;
  color: #ffd700;
}

.demo-button {
  background: #ff6b6b;
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: 25px;
  cursor: pointer;
  font-weight: bold;
  transition: all 0.3s ease;
  margin-top: 15px;
}

.demo-button:hover {
  background: #ff5252;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(255,107,107,0.4);
}

.highlight-text {
  background: rgba(255,215,0,0.3);
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: bold;
}