.preview-card {
  padding: 10px 12px;
}

.preview-outer {
  max-height: calc(100vh - 140px);
  overflow: auto;
  padding: 4px;
}

#canvas {
  display: block;
  background: #000;
  border-radius: 16px;
  border: 1px solid #1f2937;
  margin: 0 auto;
  max-width: 100%;
  height: auto;
}

@media (max-width: 1024px) {
  .preview-outer {
    max-height: 500px;
  }
}

@media (max-width: 640px) {
  .preview-card {
    padding: 8px;
  }

  .preview-outer {
    max-height: 400px;
    padding: 2px;
  }

  #canvas {
    border-radius: 12px;
  }
}