body {
  background-color: white;
  color: black;
  font-family: Arial, sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 2rem;
}

main {
  max-width: 700px;
  margin: auto;
}

section {
  margin-bottom: 3rem;
}

h1, h2 {
  margin-bottom: 1rem;
}

.top-heading {
  display: block;
  background-color: black;
  color: white;
  padding: 1rem 1rem;
  margin: 0 0 2rem 0;
  font-weight: bold;
  font-size: clamp(2rem, 5vw, 3.5rem); /* Responsive font size */
  line-height: 1.2;
}

@media (prefers-color-scheme: dark) {
  .top-heading {
    background-color: white;
    color: black;
  }

  body {
    background-color: black;
    color: white;
  }
}