/* Page-specific pieces for the four refined ODE samples. The shared reading
   dock, glossary and section cues now live in ode-companion.css. */
.method-entry { margin: 0 0 36px; }
.method-entry h2 { font-size: 22px; margin-bottom: 16px; }
.method-entry > p { color: var(--muted); font-size: 15px; }
.method-checks { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.method-checks > div { border-top: 1px solid var(--line); padding-top: 12px; }
.method-checks h3 { margin: 0 0 8px; color: var(--gold); font-size: 15px; }
.method-checks p { font-size: 15px; margin: 0; }
.reading-sample .prediction { border-left: 2px solid var(--gold); padding: 8px 0 8px 14px; margin: 16px 0; color: var(--ink); }
.reading-sample .instrument-head .symbol-key { margin-top: 12px; color: var(--ink); }
.reading-sample .instrument-head .legend { margin-bottom: 12px; }
.reading-sample[data-linear-exact="factor"] .legend .tangent-text::before { height: 0; background: none; border-top: 2px dashed currentColor; }
.factor-identity { padding: 18px 24px; border-top: 1px solid var(--line); }
.factor-identity > p { margin: 0 0 12px; color: var(--muted); font-size: 13px; }
.identity-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.identity-pair > div { border-top: 1px solid var(--line); padding-top: 12px; }
.identity-pair small { display: block; font-size: 12px; color: var(--muted); }
.identity-pair .math { font-size: 24px; line-height: 2; }
.identity-term { border-bottom: 2px solid var(--gold); color: var(--gold); }
.factor-identity[data-matched="true"] .identity-term { border-color: var(--curve); color: var(--curve); }
.factor-identity .identity-gap { margin: 12px 0 0; color: var(--ink); font-size: 15px; }
.instrument-plots { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.instrument-plots > figure { min-width: 0; }
.instrument-plots > figure + figure { border-left: 1px solid var(--line); }
.instrument-plots h3 { margin: 18px 24px 8px; font-size: 16px; }
.frequency-readout { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; padding: 16px 24px; border-top: 1px solid var(--line); }
.frequency-readout span { display: block; color: var(--muted); font-size: 12px; }
.frequency-readout output { font-size: 15px; }
.frequency-legend { margin: 0; padding: 0 24px 16px; }
.reading-sample .hint { border-bottom-style: dashed; margin-bottom: 0; }
.hint summary { font-size: 14px; color: var(--gold); }
.hint-body { padding: 0 0 16px; font-size: 15px; color: var(--muted); }
.hint-body p { margin-bottom: 0; }
.reading-sample .practice > details:not(.hint) { margin-bottom: 32px; }
.reading-sample .equation .formula-line { display: block; }
.integral { position: relative; display: inline-block; padding-right: .8em; margin-right: .12em; line-height: 1.7; }
.integral sup, .integral sub { position: absolute; left: .7em; line-height: 1; font-size: .52em; }
.integral sup { top: 0; }
.integral sub { bottom: 0; }
.fraction { display: inline-flex; flex-direction: column; align-items: stretch; vertical-align: middle; line-height: 1.35; margin: .15em .12em; text-align: center; }
.fraction > span:first-child { border-bottom: 1px solid currentColor; padding: 0 .2em .12em; }
.fraction > span:last-child { padding: .12em .2em 0; }
.decomposition-sample .legend .tangent-text::before,
.decomposition-sample .legend .rule-text::before { height: 0; background: none; border-top: 2px dashed currentColor; }
.decomposition-sample .probe-controls { padding: 16px 24px; border-top: 1px solid var(--line); }
.decomposition-sample .component-values { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; padding: 18px 24px; border-top: 1px solid var(--line); }
.component-values > div { position: relative; min-width: 0; }
.component-values span { display: block; color: var(--muted); font-size: 12px; min-height: 2em; }
.component-values output { font-size: 22px; font-variant-numeric: tabular-nums; line-height: 1.7; }
.component-values > div + div::before { position: absolute; left: -18px; top: 1.65em; content: '+'; color: var(--muted); }
.component-values > div:last-child::before { content: '≈'; }
.component-first output { color: var(--tangent); }
.component-second output { color: var(--rule); }
.component-total output { color: var(--curve); }
.decomposition-sample .component-meta { margin: 0; padding: 0 24px 18px; color: var(--muted); font-size: 13px; }
.decomposition-sample .component-meta output { color: var(--ink); }
@media (max-width: 820px) {
  .method-checks, .identity-pair, .instrument-plots { grid-template-columns: 1fr; }
  .method-checks { gap: 14px; }
  .method-checks h3 { margin-bottom: 4px; }
  .identity-pair { gap: 12px; }
  .factor-identity { padding: 16px; }
  .instrument-plots > figure + figure { border-left: 0; border-top: 1px solid var(--line); }
  .instrument-plots h3 { margin-inline: 16px; }
  .frequency-readout { padding: 16px; }
  .reading-sample[data-second-order] .readout { grid-template-columns: 1fr; }
  .reading-sample[data-second-order] .readout > div { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
  .reading-sample[data-second-order] .readout output { font-size: 17px; }
  .reading-sample .frequency-readout { grid-template-columns: 1fr; }
  .frequency-legend { padding-inline: 16px; }
  .reading-sample .equation { font-size: 22px; }
  .reading-sample .equation .compact-formula { font-size: .87em; }
  .decomposition-sample .instrument > .js-only > .controls { position: static; }
  .decomposition-sample .probe-controls { padding: 12px 16px; }
  .decomposition-sample .component-values { padding: 16px; gap: 22px; }
  .decomposition-sample .component-values output { font-size: 18px; }
  .decomposition-sample .component-values span { min-height: 3.6em; }
  .decomposition-sample .component-values > div + div::before { top: 2.6em; left: -16px; }
  .decomposition-sample .component-meta { padding: 0 16px 16px; }
}
@media print {
  .method-checks { display: block; }
}