/*
  Free Energy Principle page-specific styles.
  Load after assets/styles.css.
*/

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 800;
  color: var(--accent-2);
  margin: 0 0 12px;
  font-size: 0.82rem;
}

.subtitle {
  max-width: 850px;
  font-size: 1.18rem;
  color: var(--muted);
  margin-bottom: 0;
}

.text-block {
  max-width: 980px;
}

.equation {
  display: inline-block;
  margin: 8px 0 18px;
  font-size: 1.08rem;
  background: #fbfcfb;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px 18px;
}

.fep-demo canvas,
#fepCanvas {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  background: linear-gradient(180deg, #ffffff, #f5f7f5);
  border: 1px solid var(--line);
  border-radius: 18px;
}

.fep-readout {
  grid-template-columns: 180px 180px minmax(0, 1fr);
}

.mini-explainer {
  display: grid;
  grid-template-columns: repeat(4, minmax(160px, 1fr));
  gap: 14px;
  margin-top: 20px;
}

.mini-explainer > div {
  background: #fbfcfb;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px;
}

.mini-explainer h3 {
  margin: 0 0 8px;
  color: var(--accent);
}

.mini-explainer p {
  margin: 0;
  color: var(--muted);
}

.fep-two-paths {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 18px;
}

.path-card {
  background: #fbfcfb;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 22px;
}

.path-card h3 {
  color: var(--accent);
}

.path-equation {
  display: inline-block;
  background: var(--soft);
  border-radius: 999px;
  padding: 8px 12px;
  font-weight: 850;
  color: var(--accent);
}

.lab-link {
  background: linear-gradient(135deg, rgba(39, 76, 94, 0.08), rgba(107, 143, 113, 0.12));
}

@media (max-width: 900px) {
  .fep-readout,
  .mini-explainer,
  .fep-two-paths {
    grid-template-columns: 1fr;
  }
}