/* Book page (gaussian-splatting-book/). Hand-written, not part of the Mobirise export. */
.book-page main { padding: 3rem 0 4rem; }
.book-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
  gap: 2.5rem;
  align-items: center;
}
.book-cover img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 6px;
  box-shadow: 0 24px 60px rgba(18, 22, 31, 0.32);
}
.book-hero-copy .case-study-title { margin-top: 1rem; margin-bottom: 0.5rem; }
.book-subtitle { font-size: 1.2rem; font-weight: 600; color: #1d2430; margin: 0; }
.book-actions { display: flex; flex-wrap: wrap; gap: 0.85rem; margin-top: 1.5rem; }
.book-page .book-btn { border-radius: 999px; padding: 0.9rem 1.4rem; font-weight: 700; background: #c1272d; border-color: #c1272d; color: #fff; }
.book-page .book-btn:hover, .book-page .book-btn:focus { background: #9e1f24; border-color: #9e1f24; color: #fff; }
.book-small-links { margin: 1rem 0 0; color: #5d6776; }
.book-small-links a, .book-launch a { color: #c1272d; font-weight: 600; }
.book-launch { margin: 0.5rem 0 0; font-size: 0.95rem; }
.book-section { margin-top: 2.5rem; }
.book-section h2 { font-size: 1.7rem; margin: 0 0 1rem; }
.book-stats { margin: 0; }
.book-topics {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}
.book-topics article {
  background: #fff;
  border: 1px solid rgba(29, 36, 48, 0.08);
  border-radius: 18px;
  padding: 1.2rem 1.3rem;
}
.book-topics h3 { font-size: 1.05rem; margin: 0 0 0.4rem; }
.book-topics p, .book-two-col p, .book-list li { color: #4d5868; line-height: 1.7; margin: 0; }
.book-two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.book-two-col p + p { margin-top: 0.8rem; }
.book-list { padding-left: 1.2rem; margin: 0.8rem 0 0; }
.book-list li + li { margin-top: 0.5rem; }
.book-extras {
  background: #fff;
  border: 1px solid rgba(29, 36, 48, 0.08);
  border-radius: 24px;
  padding: 1.8rem;
}
.book-page a { overflow-wrap: anywhere; }
@media (max-width: 767px) {
  .book-page main { padding-top: 1.5rem; }
  .book-hero-grid, .book-two-col { grid-template-columns: 1fr; gap: 1.5rem; }
  .book-cover { max-width: 220px; margin: 0 auto; }
  .book-actions a { width: 100%; text-align: center; }
  .book-extras { padding: 1.3rem; }
}