body {
  font-family: Arial, sans-serif;
  background-color: #f4f4f4;
  padding-top: 20px;
}

#app-container {
  width: 90%;
  max-width: 600px;
  margin: 0 auto;
  background: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

#status-output {
  border: 1px solid #ccc;
  padding: 15px;
  margin-top: 15px;
  background-color: #e0f7fa;
}

#control-panel button,
#control-panel a {
  padding: 10px 15px;
  margin: 5px;
  cursor: pointer;
  border: none;
  border-radius: 4px;
  text-decoration: none;
  display: inline-block; /* Ensure anchor tag acts like a button */
}

/* --- Task 2 Requirement: The Hiding Class --- */
/* This class must be defined to enable the toggle functionality later. */
.hidden {
  /* Sets the element to be completely invisible and not take up space. */
  display: none;
}