/* Bounded additions for the six method pages; the original foundation skin stays shared. */
.series-directory { margin: 0 0 28px; border-top: 1px solid var(--line); }
.series-directory summary { color: var(--gold); font-size: 14px; }
.series-directory .series-nav { margin: 0 0 14px; border-top: 0; }
.classification-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; padding: 20px 24px; }
.classification-grid span { display: block; font-size: 12px; color: var(--muted); }
.classification-grid output { display: block; font-size: 20px; overflow-wrap: anywhere; }
.instrument .equation { margin: 16px 24px; }
.phase-line { padding: 16px 24px; border-top: 1px solid var(--line); }
.phase-line p { font-size: 12px; color: var(--muted); margin: 0 0 8px; }
.phase-track { display: grid; grid-template-columns: auto 1fr auto 1fr; align-items: center; gap: 10px; font-size: 14px; }
.phase-track span { border-bottom: 1px solid var(--line); text-align: center; padding: 6px 0; }
.phase-track [data-active="true"] { color: var(--gold); border-color: var(--gold); }
.method-page .readout { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.method-page .readout output { overflow-wrap: anywhere; }
.method-page .controls { min-width: 0; }
.method-page .controls select { width: 100%; }
.method-page .equation .line { display: block; }
.method-page .table-wrap { max-width: 100%; }
@media (max-width: 820px) {
  .series-directory .series-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .classification-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); padding: 16px; }
  .classification-grid output { font-size: 18px; }
  .instrument .equation { margin: 16px; font-size: 22px; }
  .phase-line { padding: 16px; }
  .phase-track { gap: 6px; font-size: 12px; }
}
@media print { .series-directory { display: none; } }