/* =============================================================================
   21. Bookshelf & book card
   ============================================================================= */

.bookshelf {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem 1.5rem;
  margin-bottom: 3rem;
}

@media (max-width: 900px) {
  .bookshelf { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 600px) {
  .bookshelf { grid-template-columns: repeat(2, 1fr); }
}

.book-card {
  display: flex;
  flex-direction: column;
  perspective: 800px;
}

.book-card__cover-link {
  display: flex;
  text-decoration: none;
  position: relative;
  transform-style: preserve-3d;
}

.book-card__cover {
  position: relative;
  flex: 1;
  border-radius: 2px 6px 6px 2px;
  overflow: hidden;
  box-shadow: -4px 4px 8px rgba(0,0,0,.25), 0 0 0 1px rgba(0,0,0,.08);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
  transform: rotateY(-8deg);
  transform-origin: left center;
  background: var(--ssc-off-white);
  aspect-ratio: 3 / 4;
}

.book-card__cover-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.book-card__spine {
  width: 10px;
  background: linear-gradient(to right, rgba(0,0,0,.3), rgba(0,0,0,.05));
  border-radius: 2px 0 0 2px;
  order: -1;
  align-self: stretch;
  flex-shrink: 0;
  transition: width 0.35s ease;
}

.book-card__cover-link:hover .book-card__cover,
.book-card__cover-link:focus-visible .book-card__cover {
  transform: rotateY(-18deg) translateX(4px);
  box-shadow: -8px 8px 20px rgba(0,0,0,.3), 0 0 0 1px rgba(0,0,0,.1);
}

.book-card__cover-link:hover .book-card__spine,
.book-card__cover-link:focus-visible .book-card__spine {
  width: 16px;
}

.book-card__hover-overlay {
  position: absolute;
  inset: 0;
  background: rgba(26,71,49,.85);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s;
}

.book-card__cover-link:hover .book-card__hover-overlay,
.book-card__cover-link:focus-visible .book-card__hover-overlay {
  opacity: 1;
}

.book-card__hover-label {
  color: var(--ssc-gold);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  text-align: center;
  padding: 0.5rem;
}

.book-card__cover-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--ssc-green) 0%, var(--ssc-green-mid) 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem;
}

.book-card__cover-icon { font-size: 2rem; }

.book-card__cover-title {
  font-size: 0.75rem;
  color: rgba(255,255,255,.85);
  text-align: center;
  line-height: 1.3;
}

.book-card__info {
  margin-top: 0.6rem;
  padding-left: 10px;
}

.book-card__year {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--ssc-gold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.15rem;
}

.book-card__title {
  font-size: 0.875rem;
  line-height: 1.3;
  margin: 0;
}

.book-card__title a {
  color: var(--ssc-green);
  text-decoration: none;
}

.book-card__title a:hover { color: var(--ssc-gold); }

.document-no-pdf { text-align: center; padding: 3rem 1rem; }

.document-no-pdf__cover {
  max-width: 300px;
  margin: 0 auto 1.5rem;
  border-radius: var(--ssc-radius);
  box-shadow: var(--ssc-shadow-lg);
}


/* =============================================================================
   22. DearFlip wrapper
   ============================================================================= */

/* Match the DearFlip dark background so the gap blends in */
body.single-document .page-content {
  padding-top: 2rem;
  padding-bottom: 0;
  background: #777777;
}

/*
 * Full-bleed wrapper: breaks out of any parent max-width so DearFlip
 * uses the full viewport width.
 */
.dearflip-wrap {
  width: 100vw;
  position: relative;
  left: 50%;
  right: 50%;
  margin-left: -50vw;
  margin-right: -50vw;
  background: #777777;
}

/* Make DearFlip's own container fill the wrapper */
.dearflip-wrap .dflip-book-container,
.dearflip-wrap .df-container,
.dearflip-wrap > div {
  width: 100% !important;
  max-width: 100% !important;
}