.kingdom-book {
  background:
    radial-gradient(circle at 76% 40%, rgba(214,173,82,.16), transparent 32%),
    #071d17;
  color: #fff;
}

.breakthrough-cover { padding: 0; background: #fff; overflow: hidden; }
.breakthrough-cover img { width: 100%; aspect-ratio: 1 / 1; object-fit: contain; object-position: center; }

.kingdom-book .section-kicker { color: var(--gold); }
.kingdom-book .book-copy h2 { margin-bottom: .45rem; }
.kingdom-book .book-copy h3 {
  margin-bottom: 1.5rem;
  color: var(--gold);
  font: 600 clamp(1.15rem,2vw,1.55rem)/1.3 var(--serif);
}
.kingdom-book .book-copy p:not(.section-kicker) { color: #cfddd7; }
.kingdom-cover { position: relative; max-width: 680px; margin: 0 auto; }
.kingdom-cover::after {
  content: "";
  position: absolute;
  left: 12%; right: 6%; bottom: 2%; height: 9%;
  background: rgba(0,0,0,.55);
  filter: blur(24px);
  border-radius: 50%;
  z-index: 0;
}
.kingdom-cover img { position: relative; z-index: 1; width: 100%; filter: drop-shadow(0 24px 38px rgba(0,0,0,.38)); }

@media (max-width: 850px) {
  .kingdom-book .book-copy { order: 2; }
  .kingdom-cover { order: 1; max-width: 580px; }
}