body {
  font-size: 1rem;
  line-height: 1.5;
  margin: 3rem auto;
  padding: 0 1.25rem;
  color: #fff;
  background: #222;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 3rem;
}

main {
  min-width: 0;
}

.title-page {
  text-align: center;
  margin-bottom: 4rem;
  grid-column: 1 / -1;
}

.title-page h1 {
  font-size: 2.2rem;
  margin-bottom: 1rem;
  font-weight: normal;
}

.title-page .subtitle {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  font-weight: normal;
}

.title-page .meta {
  font-size: 0.95rem;
  color: #fff;
}

aside.toc {
  position: sticky;
  top: 2rem;
  align-self: start;
  font-size: 0.95rem;
  border-right: 1px solid #eee;
  padding-right: 1.5rem;
}

.toc h2 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  color: #fff;
  font-weight: normal;
}

.toc h3 {
  font-size: 0.9rem;
  margin: 1.5rem 0 0.5rem 0;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.toc ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.toc li {
  display: flex;
  align-items: baseline;
  margin-bottom: 0.5rem;
}

.toc a {
  text-decoration: none;
  color: #fff;
}

.toc .page {
  font-variant-numeric: tabular-nums;
  margin-left: auto;
  padding-left: 0.5rem;
}

.toc .dots {
  flex: 1;
  border-bottom: 1px dotted #ccc;
  margin: 0 0.5rem;
  height: 1px;
}

h2 {
  font-size: 1.5rem;
  margin-top: 3rem;
  margin-bottom: 1rem;
  font-weight: normal;
}

p {
  margin-bottom: 1.25rem;
}

@media (max-width: 900px) {
  body {
    grid-template-columns: 1fr;
  }
  
  aside.toc {
    position: static;
    margin-top: 3rem;
    border-right: none;
    padding-right: 0;
    border-top: 1px solid #eee;
    padding-top: 1.5rem;
  }
}

@media print {
  body {
    display: block;
    max-width: none;
    margin: 2cm;
  }
  
  aside.toc {
    display: none;
  }
}