* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  background-color: white;
  color: black;
  line-height: 1.6;
  padding: 20px;
}

a {
  color: blue;
  text-decoration: underline;
}

.container {
  max-width: 800px;
  margin: 0 auto;
}

button {
  padding: 10px 20px;
  font-size: 1rem;
  cursor: pointer;
}

footer {
  margin-top: 40px;
  text-align: center;
  font-size: 0.9rem;
  color: #666;
}