/* Responsive headers */
h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; border-bottom: 1px solid #eee; padding-bottom: 0.5rem; }
h3 { font-size: 1.5rem; }

/* Professional code blocks */
pre.downlit, pre.usage {
  border-left: 4px solid #002147;
  background-color: #f8f9fa;
  border-radius: 0 4px 4px 0;
}

/* Custom link hover */
a:hover {
  color: #002147;
  text-decoration: underline;
}

/* Sidebar tweaks */
.sidebar h2 {
  font-size: 1.2rem;
  border-bottom: none;
}