/* ==========================================================================
   Buku (/buku) — measured from ziebrb.com/buku at 1440px.
   Hero slideshow is the shared .zb-photo-hero.
   ========================================================================== */

/* ---------- Blue band: cover flush left, copy + QR on the right -------- */
.bk-band {
  display: grid;
  grid-template-columns: minmax(0, 674fr) minmax(0, 766fr);
  align-items: center;
  background: var(--zb-band);
}

/* 819x1024 artwork shown at 674x843 on the original: exact 4:5, no crop */
.bk-band__cover {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.bk-band__copy {
  padding: 40px 72px 40px 40px;
  color: var(--color-white);
}

.bk-band__quote {
  font-family: var(--font-montserrat);
  font-weight: 600;
  font-size: 21px;
  line-height: 1;
  letter-spacing: 0;
  text-transform: uppercase;
}

.bk-band__text {
  margin-top: 20px;
  font-family: var(--font-roboto);
  font-weight: 500;
  font-size: 15px;
  line-height: 1;
  text-transform: uppercase;
}

.bk-band__qr {
  display: block;
  width: 275px;
  margin: 20px auto 20px;
  border-radius: 6px;
  transition: transform var(--duration-normal) var(--ease-out-expo);
}

.bk-band__qr:hover {
  transform: scale(1.03);
}

.bk-band__copy .zb-btn {
  display: flex;
  width: fit-content;
  margin-inline: auto;
}

/* ---------- Book pages: white section with the yellow pill ------------- */
.bk-pages {
  padding-block: 72px;
  background: var(--color-white) url("../images/deco-pill-yellow.webp") no-repeat 100% 54% / 49% auto;
}

.bk-pages__list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 270px));
  justify-content: center;
  gap: 20px;
  width: min(1140px, 100% - 48px);
  margin-inline: auto;
}

.bk-pages__list img {
  width: 100%;
  box-shadow: 0 10px 26px -16px rgba(0, 0, 0, 0.45);
}

/* ---------- Tablet & phone --------------------------------------------- */
@media (max-width: 1024px) {
  .bk-band__copy {
    padding: 32px;
  }

  .bk-band__qr {
    width: 220px;
  }
}

@media (max-width: 767px) {
  .bk-band {
    grid-template-columns: minmax(0, 1fr);
  }

  /* the 4:5 cover was ~470px tall edge to edge; shown as a book on the band */
  .bk-band__cover {
    width: min(260px, 100% - 48px);
    margin: 40px auto 0;
    border-radius: 10px;
    box-shadow: 0 18px 36px -18px rgba(0, 0, 0, 0.55);
  }

  .bk-band__copy {
    padding: 28px 24px var(--m-section);
  }

  .bk-band__quote {
    font-size: var(--m-card-title);
    line-height: 1.2;
  }

  .bk-band__text {
    margin-top: 16px;
    font-size: var(--m-lede);
    font-weight: 500;
    line-height: 1.5;
  }

  .bk-band__qr {
    width: 200px;
    margin-block: 24px;
  }

  /* the original stacks four phone-height pages (~2,400px of scrolling);
     a swipeable row shows the same pages in one screen */
  .bk-pages {
    padding-block: var(--m-section);
    background-position: 100% 50%;
    background-size: 70% auto;
  }

  .bk-pages__list {
    --swipe-item: 72%;
  }
}