body {
  font-family: system-ui, sans-serif;
  margin: 0;
  padding: 0;
}

.container, .viewer {
  max-width: 1200px;
  margin: auto;
  padding: 20px;
}

.top-nav {
  display: flex;
  justify-content: space-between;
  padding: 15px 20px;
  background: #f5f5f5;
}

.canvas-wrapper {
  position: relative;
  display: inline-block;
}

#overlayCanvas {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
}

.details {
  margin-top: 20px;
}

#uiImage {
  display: block;
  max-width: 100%;
}