/* Version-two refinements; the original post keeps its existing styling. */
:root {
  --on-policy: #377eb8;
  --on-policy-soft: #edf5fc;
}

.policy-card.on-policy {
  border-top-color: var(--on-policy);
  background: var(--on-policy-soft);
}

.only-variable::before,
.only-variable::after {
  background: linear-gradient(90deg, var(--orange), var(--on-policy));
}

.spectrum-scale::before {
  background: linear-gradient(90deg, var(--orange), #b8bec6 50%, var(--on-policy));
}

.spectrum-scale div:first-child span {
  color: #985b10;
}

.spectrum-scale div:last-child span {
  color: #28699d;
}

.generalisation-result {
  border-color: #c9deef;
  border-left-color: var(--on-policy);
  background: linear-gradient(135deg, #ffffff, var(--on-policy-soft));
}

.generalisation-result .result-kicker {
  color: #28699d;
}

.tldr,
.central-question {
  background: var(--blue-soft);
}

.central-question {
  border-color: #cadce7;
  border-left-color: var(--blue);
}

.central-question span {
  color: var(--blue);
}

.central-question p {
  color: #27384a;
}

.equation-grid {
  margin-top: 1.1rem;
}

.equation-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.equation-heading {
  flex-wrap: wrap;
  gap: 0.3rem 0.75rem;
  padding-top: 0.65rem;
}

.equation-heading .equation-direction {
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 400;
}

.equation {
  display: grid;
  align-items: center;
  min-height: 0;
  padding: 0.35rem 0.65rem;
  font-size: 1.12rem;
}

.equation mjx-container[jax="SVG"][display="true"] {
  margin: 0.3em auto !important;
}

.equation-note {
  flex: 1;
  min-height: 0;
  padding: 0.65rem 1rem 0.8rem;
}

.equation-note p {
  margin-top: 0.35rem;
}

.equation-detail {
  max-width: 850px;
  margin: 0 auto 1.15rem;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

.equation-conclusion {
  max-width: none;
  text-align: left;
}

.citation-bibtex {
  margin: 1.25rem 0 0;
  padding: 1.2rem 1.35rem;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: #344258;
  background: var(--soft);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.82rem;
  line-height: 1.7;
  tab-size: 2;
}

.citation-bibtex:focus-visible {
  outline: 2px solid var(--on-policy);
  outline-offset: 4px;
}

@media (max-width: 1100px) {
  .equation-grid {
    grid-template-columns: 1fr;
    max-width: 720px;
  }
}

@media (max-width: 480px) {
  .equation {
    padding-right: 0.45rem;
    padding-left: 0.45rem;
    font-size: 0.95rem;
  }

  .citation-bibtex {
    padding: 1rem;
    font-size: 0.75rem;
  }
}

@media (max-width: 360px) {
  .equation {
    font-size: 0.85rem;
  }
}