/* Shared by Hugo articles, ABAP pages and merged Codex daily posts. */
main.reader-layout {
  box-sizing: border-box;
  width: 100%;
  max-width: 1160px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 270px;
  align-items: start;
  gap: 44px;
  margin-inline: auto;
}
#reader-content { min-width: 0; }
.reader-pagination { display: flex; gap: 16px; margin: 24px 0; }
.reader-pagination a { flex: 1; min-width: 0; padding: 14px 16px; border: 1px solid var(--border, #dedede); border-radius: 8px; color: inherit; text-decoration: none; overflow-wrap: anywhere; }
.reader-pagination a[rel="next"] { text-align: right; margin-left: auto; }
.reader-pagination span { display: block; font-size: 13px; opacity: .75; margin-bottom: 6px; }
.reader-pagination strong { font-size: 15px; font-weight: 600; }
.reader-pagination a:hover { background: var(--code-bg, #f1f3f5); }
.reader-pagination a:focus-visible { outline: 2px solid #4677b7; outline-offset: 3px; }
@media (max-width: 600px) { .reader-pagination { flex-direction: column; } .reader-pagination a[rel="next"] { margin-left: 0; } }
#column-sidebar {
  position: sticky;
  top: 24px;
  margin-top: 24px;
  padding: 16px;
  border: 1px solid var(--border, #dedede);
  border-radius: 10px;
  background: var(--entry, #fff);
  color: var(--primary, #222);
  font: 14px/1.65 system-ui, sans-serif;
}
#column-sidebar details { margin: 0; }
#column-sidebar summary { cursor: pointer; font-weight: 650; }
#column-sidebar .column-index { display: inline-block; margin: 10px 0; text-decoration: underline; }
#column-sidebar nav { max-height: calc(100dvh - 180px); overflow-y: auto; overscroll-behavior: contain; scrollbar-width: thin; }
#column-sidebar ul { list-style: none; padding: 0; margin: 0; }
#column-sidebar li { margin: 3px 0; }
#column-sidebar li a { display: block; padding: 8px 10px; border-radius: 6px; color: inherit; text-decoration: none; overflow-wrap: anywhere; }
#column-sidebar li a:hover { background: var(--code-bg, #f1f3f5); }
#column-sidebar a[aria-current="page"] { background: var(--code-bg, #eef1f5); font-weight: 650; border-inline-start: 3px solid currentColor; }
#column-sidebar a:focus-visible, #column-sidebar summary:focus-visible { outline: 2px solid #4677b7; outline-offset: 3px; }
@media (prefers-color-scheme: dark) {
  #column-sidebar { background: var(--entry, #27282b); color: var(--primary, #ddd); border-color: var(--border, #444); }
  #column-sidebar li a:hover, #column-sidebar a[aria-current="page"] { background: var(--code-bg, #33353a); }
}
@media (max-width: 1050px) {
  main.reader-layout { display: block; }
  #column-sidebar { position: static; margin-top: 32px; }
  #column-sidebar nav { max-height: 340px; }
}