/* Shared progressive reader workspace.
   Source HTML remains a complete readable document until enhancement succeeds. */
.reader-workspace-nav {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(0, 1fr);
  gap: .5rem;
  margin: 1rem 0;
}

.reader-workspace-nav a {
  border: 1px solid var(--border);
  border-radius: .65rem;
  padding: .8rem 1rem;
  text-align: center;
  text-decoration: none;
}

.reader-workspace-nav a[aria-selected="true"],
.reader-workspace-nav a:first-child:not([aria-selected]) {
  background: var(--accent-soft);
  border-color: var(--accent);
}

@media (max-width: 640px) {
  .reader-workspace-nav {
    grid-auto-flow: row;
    grid-template-columns: 1fr;
  }
}