body {
  font-family: system-ui, sans-serif;
  margin: 0;
  padding: 0;
}

header.site-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1.5rem;
  border-bottom: 1px solid #ddd;
}

.nav-auth {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-auth-error {
  color: #b00020;
}

.nav-auth-warning {
  color: #b06000;
  font-size: 0.9em;
}

.nav-auth-info {
  color: #1a6b1a;
  font-size: 0.9em;
}

main {
  max-width: 800px;
  margin: 0 auto;
  padding: 1.5rem;
}

/* Ordering (Parsons) question */
.ordering-list {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0;
  border: 1px solid #ccc;
  border-radius: 4px;
  user-select: none;
}

.ordering-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0.75rem;
  border-bottom: 1px solid #e0e0e0;
  cursor: grab;
  background: #fff;
}

.ordering-item:last-child {
  border-bottom: none;
}

.ordering-item.dragging {
  opacity: 0.4;
  background: #f5f5f5;
}

.drag-handle {
  color: #aaa;
  font-size: 1.1em;
  cursor: grab;
}

.ordering-item code {
  font-family: monospace;
  font-size: 0.9em;
}

.quiz-unit {
  margin-left: 0.25rem;
  color: #555;
}

fieldset {
  margin-bottom: 1rem;
}