/* ---------- Book page (dark) ---------- */
.book-body {
  background: #05141F;
  color: #fff;
  min-height: 100vh;
}

.book-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(5, 20, 31, 0.85);
  backdrop-filter: saturate(1.1) blur(10px);
  -webkit-backdrop-filter: saturate(1.1) blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.book-header__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; gap: 16px;
}
.brand__sub {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 13px;
  color: rgba(255,255,255,.55);
  margin-left: 4px;
  letter-spacing: .01em;
}
.book-header__actions { display: flex; align-items: center; gap: 12px; }
.book-header__switch {
  color: rgba(255,255,255,.75);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.15);
  transition: color .2s, border-color .2s, background .2s;
}
.book-header__switch:hover { color: #fff; border-color: rgba(255,255,255,.4); background: rgba(255,255,255,.05); }
.book-header__contact {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border-radius: 999px;
  background: var(--gold);
  color: var(--navy);
  transition: transform .15s ease, background .2s ease;
  flex-shrink: 0;
}
.book-header__contact:hover { background: #fff; transform: translateY(-1px); }

/* ---------- Intro ---------- */
.book-main { padding: clamp(40px, 6vw, 72px) 0 96px; }
.book-intro { text-align: left; margin: 0 0 clamp(32px, 4vw, 48px); max-width: 640px; }
.eyebrow--light { color: var(--gold); }
.book-intro h1 {
  font-family: var(--serif); font-weight: 600;
  font-size: clamp(36px, 5vw, 56px);
  line-height: 1.05; letter-spacing: -.02em;
  margin: 0 0 14px; color: #fff;
}
.book-intro__lede {
  color: rgba(255,255,255,.7);
  font-size: 17px; margin: 0; max-width: 56ch;
}
.book-intro__switch {
  margin: 20px 0 0; font-size: 14.5px;
  color: rgba(255,255,255,.55);
}
.book-intro__switch a { color: var(--gold); font-weight: 600; border-bottom: 1px solid rgba(245,179,1,.3); }
.book-intro__switch a:hover { color: #fff; border-color: #fff; }

/* ---------- Cards ---------- */
.appliances {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.appliance-card {
  background: #0A2634;
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 18px;
  padding: 24px;
  display: flex; flex-direction: column;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.appliance-card:hover {
  transform: translateY(-4px);
  border-color: rgba(245, 179, 1, .5);
  box-shadow: 0 20px 40px rgba(0,0,0,.4);
}
.appliance-card__media {
  background: #0A2E45;
  border-radius: 12px;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  margin-bottom: 24px;
  display: grid; place-items: center;
}
.appliance-card__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.appliance-card:hover .appliance-card__media img { transform: scale(1.04); }

.appliance-card h2 {
  font-family: var(--sans);
  font-weight: 800;
  font-size: 24px;
  letter-spacing: -.015em;
  margin: 0 0 8px;
  color: #fff;
}
.appliance-card__price {
  margin: 0 0 20px;
  display: flex; align-items: baseline; gap: 8px;
}
.price {
  font-family: var(--sans);
  font-weight: 800;
  font-size: 40px;
  letter-spacing: -.02em;
  color: var(--gold);
  line-height: 1;
}
.price__label {
  color: rgba(255,255,255,.55);
  font-size: 14px;
  font-weight: 500;
}
.appliance-card__cta {
  margin-top: auto;
  color: var(--gold);
  font-weight: 600;
  font-size: 15.5px;
  display: inline-flex; align-items: center; gap: 6px;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,.06);
  transition: gap .2s ease, color .2s ease;
}
.appliance-card__cta:hover { gap: 12px; color: #fff; }

/* ---------- Foot ---------- */
.book-foot {
  margin: 48px 0 0;
  text-align: center;
  color: rgba(255,255,255,.55);
  font-size: 15px;
}
.book-foot a { color: var(--gold); border-bottom: 1px solid rgba(245, 179, 1, .4); }
.book-foot a:hover { color: #fff; border-color: #fff; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .appliances { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .appliances { grid-template-columns: 1fr; }
  .price { font-size: 36px; }
  .brand__sub { display: none; }
  .book-header__switch { display: none; }
}