/* Bookcase */
.bookcase h2 {
  font-family: "Gotham Black";
  text-transform: uppercase;
  font-size: calc(1.2625rem + 0.15vw);
}
@media (min-width: 1200px) {
  .bookcase h2 {
    font-size: 1.375rem;
  }
}
.bookcase .scrolling-wrapper {
  overflow-x: auto;
  white-space: nowrap;
  position: relative;
  scrollbar-width: thin;
}
.bookcase .book {
  display: inline-block;
  height: 18rem;
  margin-left: 1rem;
  margin-right: 1rem;
  margin-bottom: 0.5rem;
  vertical-align: bottom;
}
.bookcase .book .book-cover {
  height: 100%;
  width: auto;
  border-radius: 0.25rem;
}

/* Voyage section */
.voyage h2,
.voyage .h2 {
  font-family: "Montserrat SemiBold";
  text-transform: uppercase;
  font-size: 1.25rem;
}
.voyage .overlay .h2 {
  font-size: calc(0.7rem + 0.5vw);
}
.voyage .modal-dialog h2 {
  font-size: 0.9rem;
}

/* Flip card */
.flip-card {
  -webkit-transition: 0.5s;
  transition: 0.5s;
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d;
  position: relative;
}
.flip-card.flipped {
  -webkit-transform: rotateY(180deg);
  transform: rotateY(180deg);
}
.flip-card .front,
.flip-card .back {
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}
.flip-card .front .overlay,
.flip-card .back .overlay {
  position: absolute;
  top: calc(50% + 0.5rem);
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  width: 90%;
}
.flip-card .back {
  position: absolute;
  top: 0;
  -webkit-transform: rotateY(180deg);
  transform: rotateY(180deg);
}