body, html {
  margin: 0;
  height: 100%;
  font-family: sans-serif;
  background-color: #f4f4f4; /* вернули светлый фон */
  color: #333;
}

#layout {
  display: flex;
  height: 100vh;
}

#sidebar {
  width: 250px;
  padding: 20px;
  background: #ffffff; /* светлая боковая панель */
  border-right: 1px solid #ccc;
  box-sizing: border-box;
}

#sidebar h3, label {
  color: #333;
}

#sidebar input[type="file"] {
  background: #fff;
  color: #000;
  border: 1px solid #ccc;
  padding: 6px;
  margin-top: 4px;
  width: 100%;
}

#content {
  display: flex;
  flex: 1;
  align-items: center;
  justify-content: space-around;
  overflow: auto;
  padding: 50px 20px;
  box-sizing: border-box;
  gap: 20px;
  background-color: #f4f4f4;
}

#canvas {
  position: relative;
  background: #2a2a2a; /* серый фон области дампа */
  border: 1px solid #444;
  flex-shrink: 0;
}

#screenshot-container {
  flex-shrink: 0;
}

#screenshot {
  max-height: calc(100vh - 100px);
  border: 1px solid #ccc;
}

.rect {
  position: absolute;
  border: 1px dashed #ff9800;
  background: transparent;
  color: #ff9800;
  font-size: 11px;
  font-weight: bold;
}