body {
  background: #f5f7fb;
}
#root {
  padding-top: 20px;
}
.card {
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}
.builder-grid {
  background: #f8f9fa;
  border: 1px dashed #ccc;
  min-height: 400px;
  padding: 10px;
}
.grid-stack-item-content {
  background: #fff;
  border-radius: 4px;
  border: 1px solid #ddd;
  padding: 8px;
}
.ai-box textarea {
  font-size: 0.9rem;
}