/* E-Catalogue magazine viewer */

body.bth-apple-catalogue {
  background: #fff;
  color: #1d1d1f;
}

body.bth-apple-catalogue .bth-apple-main.bth-catalogue-main,
body.bth-apple-catalogue .bth-catalogue-main {
  width: 100%;
  max-width: 100%;
  padding-bottom: 88px;
}

body.bth-apple-catalogue .bth-apple-footer {
  margin-top: 0;
}

.bth-catalogue-intro {
  max-width: 720px;
  margin: 0 auto;
  padding: clamp(32px, 5vw, 56px) clamp(20px, 4vw, 40px) 12px;
  text-align: center;
}

.bth-catalogue-eyebrow {
  margin: 0 0 10px;
  color: #b91c1c;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.bth-catalogue-title {
  margin: 0;
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.12;
  letter-spacing: -0.03em;
  font-weight: 600;
}

.bth-catalogue-lead {
  margin: 12px 0 0;
  color: #6e6e73;
  font-size: 16px;
  line-height: 1.5;
}

.bth-catalogue-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: min(76vh, 920px);
  padding: 8px clamp(16px, 3vw, 32px) 28px;
  box-sizing: border-box;
}

.bth-catalogue-loader {
  width: min(360px, 90vw);
  text-align: center;
}

.bth-catalogue-loader__ring {
  width: 44px;
  height: 44px;
  margin: 0 auto 16px;
  border: 3px solid rgba(185, 28, 28, 0.15);
  border-top-color: #b91c1c;
  border-radius: 50%;
  animation: bth-catalogue-spin 0.9s linear infinite;
}

@keyframes bth-catalogue-spin {
  to {
    transform: rotate(360deg);
  }
}

.bth-catalogue-loader__text {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 600;
}

.bth-catalogue-loader__sub {
  margin: 0 0 14px;
  font-size: 13px;
  color: #6e6e73;
}

.bth-catalogue-loader__bar {
  height: 4px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.08);
  overflow: hidden;
}

.bth-catalogue-loader__bar span {
  display: block;
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, #b91c1c, #dc2626);
  transition: width 0.25s ease;
}

.bth-catalogue-error {
  text-align: center;
  padding: 32px 20px;
  max-width: 420px;
}

.bth-catalogue-error p {
  color: #6e6e73;
  margin: 0 0 16px;
}

.bth-catalogue-book-wrap {
  width: 100%;
  max-width: calc(var(--catalogue-spread-w, 1280px) + 32px);
  margin: 0 auto;
  padding: 0 clamp(8px, 1.5vw, 16px);
  box-sizing: border-box;
  display: flex;
  justify-content: center;
}

.bth-catalogue-book {
  width: var(--catalogue-spread-w, auto) !important;
  max-width: 100%;
  margin: 0 auto;
}

.bth-catalogue-book .catalogue-page {
  background: #fff;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.05);
  box-sizing: border-box;
}

.bth-catalogue-book .catalogue-page img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center center;
  background: #fff;
  user-select: none;
  -webkit-user-drag: none;
  backface-visibility: hidden;
  transform: translateZ(0);
}

.bth-catalogue-toolbar {
  position: fixed;
  left: 50%;
  bottom: calc(20px + env(safe-area-inset-bottom, 0px));
  z-index: 100010;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(251, 251, 253, 0.82);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
  transform: translateX(-50%);
}

.bth-catalogue-tool {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: #1d1d1f;
  cursor: pointer;
  transition: background 0.2s ease;
}

.bth-catalogue-tool:hover {
  background: rgba(0, 0, 0, 0.06);
}

.bth-catalogue-tool:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.bth-catalogue-page-indicator {
  min-width: 72px;
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  color: #6e6e73;
  letter-spacing: -0.01em;
}

.bth-catalogue-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.bth-catalogue-btn--primary {
  background: #b91c1c;
  color: #fff;
}

.bth-catalogue-btn--primary:hover {
  background: #991b1b;
  color: #fff;
}

.bth-catalogue-btn--ghost {
  margin-left: 4px;
  border: 1px solid rgba(0, 0, 0, 0.12);
  color: #1d1d1f;
  background: #fff;
}

.bth-catalogue-btn--ghost:hover {
  border-color: rgba(0, 0, 0, 0.22);
}

@media (max-width: 768px) {
  .bth-catalogue-intro {
    padding-top: clamp(28px, 5vw, 48px);
  }

  .bth-catalogue-lead {
    font-size: 15px;
  }

  .bth-catalogue-stage {
    min-height: min(70vh, 820px);
    padding-bottom: 24px;
  }

  .bth-catalogue-toolbar {
    width: min(100% - 24px, 360px);
    justify-content: center;
    flex-wrap: wrap;
    border-radius: 20px;
    padding: 12px;
  }

  .bth-catalogue-btn--ghost {
    width: 100%;
    margin-left: 0;
    margin-top: 4px;
  }
}