body {
  font-family: sans-serif;
  max-width: 700px;
  margin: 40px auto;
  line-height: 1.6;
}

h1 {
  border-bottom: 2px solid #333;
  padding-bottom: 5px;
}

.agreement-box {
  border: 1px solid #ccc;
  padding: 15px;
  margin: 20px 0;
  background: #f9f9f9;
}

button {
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
}