blockquote.note {
  border-left: 4px solid #007bff;
  background-color: #eef6ff;
  padding: 1em;
  font-style: italic;
}

blockquote.warning {
  border-left: 4px solid #ffc107;
  background-color: #fff8e1;
  padding: 1em;
}

blockquote.danger {
  border-left: 4px solid #dc3545;
  background-color: #f8d7da;
  padding: 1em;
}

.about .about-img {
  border-radius: 0 !important;
}

#side-nav {
  position: fixed;
  top: 30%;
  left: 1rem;
  background: var(--background-color, rgba(255, 255, 255, 0.95));
  padding: 0.5rem;
  border-radius: 0.5rem;
  z-index: 999;
  transition: opacity 0.3s ease;
  font-family: inherit;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

#side-nav.hidden {
  opacity: 0;
  pointer-events: none;
}

#side-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

#side-nav li {
  margin-bottom: 0.5rem;
}

#side-nav a {
  text-decoration: none;
  color: var(--text-color, #000);
  font-weight: 500;
  transition: color 0.2s ease, border-left 0.2s ease;
  padding-left: 0.25rem;
  display: block;
}

#side-nav a:hover {
  color: var(--primary-color, #007bff);
  border-left: 3px solid var(--primary-color, #007bff);
}

#side-nav {
  position: fixed;
  top: 30%;
  left: 1rem;
  background: var(--background-color, rgba(255, 255, 255, 0.95));
  padding: 0.5rem;
  border-radius: 0.5rem;
  z-index: 999;
  transition: opacity 0.3s ease;
  font-family: inherit;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

#side-nav.hidden {
  opacity: 0;
  pointer-events: none;
}

#side-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

#side-nav li {
  margin-bottom: 0.5rem;
}

#side-nav a {
  text-decoration: none;
  color: var(--text-color, #000);
  font-weight: 500;
  transition: color 0.2s ease, border-left 0.2s ease;
  padding-left: 0.25rem;
  display: block;
}

#side-nav a:hover {
  color: var(--primary-color, #007bff);
  border-left: 3px solid var(--primary-color, #007bff);
}