body {
  max-width: 48em;
  margin: 2em auto;
  padding: 0 1.5em;
  font-family: "Times New Roman", Times, serif;
  font-size: 1rem;
  line-height: 1.6;
  color: #222;
}

h1 {
  font-size: 1.4em;
  text-align: center;
}

h2 {
  font-size: 1.2em;
  margin-top: 1.5em;
}

p {
  margin: 0.8em 0;
}

ol {
  padding-left: 1.5em;
}

ol ol {
  list-style-type: lower-alpha;
  padding-left: 2em;
}

ol ol ol {
  list-style-type: lower-roman;
  padding-left: 2em;
}

li {
  margin-bottom: 0.5em;
}

table {
  border-collapse: collapse;
  width: 100%;
  margin: 1em 0;
}

th, td {
  border: 1px solid #ccc;
  padding: 0.4em 0.8em;
  text-align: left;
  vertical-align: top;
}

th {
  background: #f5f5f5;
  font-weight: bold;
}