body {
  font-family: system-ui, sans-serif;
  max-width: 72rem;
  margin: 2rem auto;
  padding: 0 1.5rem;
  line-height: 1.6;
  color: #1a1a1a;
}

h2 {
  margin-top: 2rem;
  border-top: 1px solid #ddd;
  padding-top: 1.5rem;
}

.pwc-page-layout {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

.pwc-page-main {
  flex: 1;
  min-width: 0;
  overflow: hidden;
}

.pwc-page-sidebar {
  width: 14rem;
  flex-shrink: 0;
  position: sticky;
  top: 2rem;
  border-left: 1px solid #ddd;
  padding-left: 1.5rem;
}

.pwc-page-sidebar h3 {
  margin-top: 0;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #666;
}

.pwc-page-sidebar ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.pwc-page-sidebar li {
  margin-bottom: 0.4rem;
}

.pwc-page-sidebar a {
  color: #0969da;
  text-decoration: none;
  font-size: 0.9rem;
}

.pwc-page-sidebar a:hover {
  text-decoration: underline;
}

@media (prefers-color-scheme: dark) {
  body {
    background: #0d1117;
    color: #e6edf3;
  }

  h2 {
    border-top-color: #30363d;
  }

  .pwc-page-sidebar {
    border-left-color: #30363d;
  }

  .pwc-page-sidebar h3 {
    color: #9198a1;
  }

  .pwc-page-sidebar a {
    color: #4493f8;
  }
}

@media (max-width: 40rem) {
  .pwc-page-layout {
    flex-direction: column;
  }

  .pwc-page-sidebar {
    width: auto;
    position: static;
    border-left: none;
    border-top: 1px solid #ddd;
    padding-left: 0;
    padding-top: 1rem;
  }
}

@media (max-width: 40rem) and (prefers-color-scheme: dark) {
  .pwc-page-sidebar {
    border-top-color: #30363d;
  }
}