.principles-page {
  --max-width: 1100px;
}

.principles-page .page-shell {
  display: grid;
  gap: 1.5rem;
  padding: 0.75rem 0 3rem;
}

.principles-page .hero-card,
.principles-page .intro-card,
.principles-page .closing-card {
  display: grid;
  gap: 1rem;
  padding: 1.5rem;
  border: 1px solid rgba(213, 220, 229, 0.92);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow);
}

.principles-page .hero-card h1 {
  max-width: 13ch;
  font-size: clamp(2.05rem, 4.35vw, 3.45rem);
  line-height: 1.02;
  color: var(--emphasis);
}

.principles-page .hero-card p,
.principles-page .principle-card p,
.principles-page .closing-card p,
.principles-page .intro-card p {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.75;
}

.principles-page .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.principles-page .eyebrow {
  min-height: 2.1rem;
  padding: 0.35rem 0.8rem;
  background: rgba(47, 49, 146, 0.1);
  color: var(--brand-dark);
}

.principles-page .intro-card p {
  max-width: 68ch;
}

.principles-page .principles-grid {
  display: grid;
  gap: 1rem;
  padding: 1rem;
  background: transparent;
  border: none;
  border-radius: 0;
  box-shadow: none;
}

.principles-page .principle-card {
  display: grid;
  gap: 0.55rem;
  padding: 1rem;
  border: 1px solid rgba(213, 220, 229, 0.92);
  border-radius: 20px;
  background: var(--surface);
}

.principles-page .principle-number {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand-dark);
}

@media (min-width: 760px) {
  .principles-page .principles-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .principles-page .page-shell {
    gap: 2rem;
  }

  .principles-page .hero-card,
  .principles-page .intro-card,
  .principles-page .closing-card {
    padding: 2rem;
  }

  .principles-page .principles-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    padding: 1.25rem;
  }
}