body {
  font-family: system-ui, sans-serif;
  max-width: 720px;
  margin: 2rem auto;
  padding: 0 1rem;
}

.drop-zone {
  border: 2px dashed #999;
  border-radius: 8px;
  padding: 2rem;
  text-align: center;
}

.hidden {
  display: none;
}

progress {
  width: 100%;
  height: 1.5rem;
}

#chunk-log {
  max-height: 240px;
  overflow-y: auto;
  font-family: monospace;
  font-size: 0.85rem;
}