webui/src/sketch-app-shell.css

html,
body {
  height: 100%;
  overflow-y: auto;
}

body {
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    sans-serif;
  margin: 0;
  padding: 0;
  color: #333;
  line-height: 1.4;
  overflow-x: hidden; /* Prevent horizontal scrolling */
  display: flex;
  flex-direction: column;
}