body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, sans-serif;
  margin: 0;
  padding: 20px;
  padding-bottom: 100px; /* Adjusted padding for chat container */
  color: #333;
  line-height: 1.4; /* Reduced line height for more compact text */
}