body {
  font-family: Arial, sans-serif;
  background-color: #f9f9f9;
  color: #333;
  margin: 0;
  padding: 0;
}

header {
  background-color: #5c67f2;
  color: #fff;
  padding: 40px 20px;
  text-align: center;
}

header h1 {
  margin-bottom: 10px;
}

.btn {
  display: inline-block;
  background-color: #ffcc00;
  color: #000;
  padding: 12px 24px;
  margin-top: 20px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: bold;
}

section {
  max-width: 800px;
  margin: 30px auto;
  padding: 0 20px;
}

h2 {
  color: #5c67f2;
}

ul, ol {
  margin-left: 20px;
}

footer {
  text-align: center;
  padding: 20px;
  background-color: #eee;
}