a {
  color: #007acc;
}

.highlight {
  border-radius: 8px;
}

body {
  background-color: #f8fafc;
}

.main-content {
  max-width: 950px;
  margin: 0 auto;
  animation: fadeInUp 0.25s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- Sidebar nav links: always a single line --- */
.nav-list .nav-list-link {
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding: 0.25rem 0.75rem;
  border-radius: 0.35rem;
  transition:
    background-color 0.15s ease,
    color 0.15s ease,
    padding-left 0.15s ease,
    box-shadow 0.15s ease;
}

.nav-list .nav-list-link:hover {
  background-color: #e0f2fe;
  padding-left: 1rem;
  box-shadow: 0 0 0 1px #bfdbfe;
}

.nav-list .nav-list-item > .nav-list-link.active {
  background-color: #dbeafe;
  font-weight: 600;
  box-shadow: inset 3px 0 0 0 #2563eb;
}


.nav-list-expander svg {
  width: 0.9rem;
  height: 0.9rem;
  margin-right: 0.1rem;
  transform-origin: center;
  transition: transform 0.15s ease;
}

.nav-list-item.active > .nav-list-expander svg {
  transform: rotate(90deg);
}

.nav-list-item > .nav-list {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition:
    max-height 0.2s ease-out,
    opacity 0.2s ease-out;
}

.nav-list-item.active > .nav-list {
  max-height: 500px;
  opacity: 1;
}