/* ──────── Options module ──────── */

.options-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}
.options-nav {
  background: var(--bfc-surface);
  border: 1px solid var(--bfc-line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.options-nav button {
  text-align: left;
  padding: 9px 12px;
  border: none;
  border-radius: 8px;
  background: none;
  font: inherit;
  font-size: 14px;
  color: var(--bfc-navy);
  cursor: pointer;
  width: 100%;
}
.options-nav button:hover { background: var(--bfc-soft); }
.options-nav button:focus-visible { outline: none; box-shadow: 0 0 0 3px rgba(35, 177, 165, 0.25); }
.options-nav button.active {
  background: rgba(63, 83, 216, 0.06);
  color: var(--bfc-indigo-dark);
  box-shadow: inset 3px 0 0 var(--bfc-indigo);
  font-weight: 700;
}
.options-nav button.dim { opacity: 0.45; cursor: default; }
.options-nav button .reason {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: var(--bfc-muted);
}
tr.options-undoc td { color: var(--bfc-muted); }

/* MODS programs — the sibling section below the option groups. */
.options-nav-sep { height: 1px; background: var(--bfc-line); margin: 6px 6px; }
.options-nav button.mods-entry { font-weight: 600; }
.chip {
  display: inline-block;
  margin-left: 10px;
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--bfc-soft);
  color: var(--bfc-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  vertical-align: middle;
}
table.data thead th.sortable { cursor: pointer; }
table.data thead th.sortable:hover { color: var(--bfc-navy); }
.inv-filter-row { flex-wrap: wrap; padding-top: 10px; border-top: 1px solid var(--bfc-soft-2); }
.date-range-group { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--bfc-muted); }
.date-cell { display: inline-flex; align-items: center; gap: 7px; }
/* MODS rows are read-only (no detail drill), so don't imply clickability. */
table.mods-table tbody tr { cursor: default; }