.demo-container {
  max-width: 100%;
  margin: 0 auto;
  padding: 15px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 8px;
  color: white;
}

.demo-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 15px;
  margin-top: 15px;
}

.demo-item {
  background: rgba(255, 255, 255, 0.2);
  padding: 20px;
  border-radius: 6px;
  text-align: center;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

@media screen and (min-width: 576px) {
  .demo-container {
    padding: 20px;
  }
  .demo-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

@media screen and (min-width: 768px) {
  .demo-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media screen and (min-width: 992px) {
  .demo-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}