/* Catalogue flipbook viewer — uses the shared tokens from colors_and_type.css. */

.catalogue {
  background: var(--bege);
  padding-top: var(--s-9);
  padding-bottom: var(--s-8);
}

/* ---------- Head: title + download ---------- */
.catalogue__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--s-6);
  flex-wrap: wrap;
  margin-bottom: var(--s-7);
}
.catalogue__title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2rem, 4vw, 3.25rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--preto);
}
.catalogue__lede {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  color: var(--fg-muted);
  margin: var(--s-3) 0 0 0;
}
.catalogue__download {
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

/* ---------- Stage + book ---------- */
.catalogue__stage {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  box-sizing: border-box;
  padding: var(--s-2) var(--gutter) var(--s-6);
  min-height: 40vh;
  display: grid;
  place-items: center;
}
.catalogue__book {
  margin: 0 auto;
  max-width: 100%;
  touch-action: pan-y;
}
/* react-pageflip sizes each page element inline; we only style the surface. */
.catalogue__page {
  background: var(--branco);
  overflow: hidden;
}
.catalogue__page-img,
.catalogue__page-ph {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  -webkit-user-select: none;
  user-select: none;
}
.catalogue__page-ph {
  background:
    linear-gradient(100deg, var(--bege-dark) 20%, #e7dfcc 40%, var(--bege-dark) 60%);
  background-size: 200% 100%;
  animation: catShimmer 1.4s linear infinite;
}
/* soft page edges + a low book shadow */
.catalogue__page[data-density="hard"] { box-shadow: inset 0 0 0 1px var(--bege-dark); }
.catalogue__stage.is-ready .catalogue__book { filter: drop-shadow(var(--shadow-image)); }

/* ---------- Loading skeleton ---------- */
.catalogue__skeleton {
  display: flex;
  gap: 2px;
  width: min(100%, 900px);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.catalogue__skeleton-page {
  flex: 1;
  background:
    linear-gradient(100deg, var(--bege-dark) 20%, #e7dfcc 40%, var(--bege-dark) 60%);
  background-size: 200% 100%;
  animation: catShimmer 1.4s linear infinite;
}
@keyframes catShimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ---------- Controls ---------- */
.catalogue__controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-5);
  margin-top: var(--s-2);
}
.catalogue__nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--bege-dark);
  background: var(--branco);
  color: var(--verde);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition), opacity var(--transition);
}
.catalogue__nav:hover { background: var(--verde); border-color: var(--verde); color: var(--bege); }
.catalogue__nav:disabled { opacity: 0.4; cursor: default; }
.catalogue__nav:disabled:hover { background: var(--branco); border-color: var(--bege-dark); color: var(--verde); }
.catalogue__counter {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: var(--ls-label);
  color: var(--fg-muted);
  min-width: 9ch;
  text-align: center;
}

/* ---------- Thumbnail strip ---------- */
.catalogue__thumbs {
  display: flex;
  gap: var(--s-2);
  margin-top: var(--s-6);
  padding-bottom: var(--s-3);
  overflow-x: auto;
  scrollbar-width: thin;
  scroll-snap-type: x proximity;
}
.catalogue__thumb {
  position: relative;
  flex: 0 0 auto;
  width: 46px;
  padding: 0;
  border: 1px solid var(--bege-dark);
  border-radius: var(--radius-xs);
  background: var(--branco);
  cursor: pointer;
  overflow: hidden;
  scroll-snap-align: center;
  transition: border-color var(--transition), transform var(--transition);
  aspect-ratio: 283 / 400;
}
.catalogue__thumb img { display: block; width: 100%; height: 100%; object-fit: cover; }
.catalogue__thumb:hover { border-color: var(--verde-light); }
.catalogue__thumb.is-active { border-color: var(--verde); box-shadow: 0 0 0 2px var(--verde); }
.catalogue__thumb-n {
  position: absolute;
  inset: auto 0 0 0;
  font-family: var(--font-body);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-align: center;
  color: var(--bege);
  background: rgba(26, 26, 24, 0.55);
  padding: 1px 0;
}

/* ---------- No-manifest fallback ---------- */
.catalogue__fallback {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s-4);
  padding: var(--s-8) 0;
}
.catalogue__fallback p { max-width: 42ch; color: var(--fg-muted); }

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .catalogue { padding-top: var(--s-8); }
  .catalogue__head { flex-direction: column; align-items: flex-start; gap: var(--s-4); }
  .catalogue__download { width: 100%; justify-content: center; }
  .catalogue__controls { gap: var(--s-4); }
  .catalogue__thumbs { gap: 6px; }
  .catalogue__thumb { width: 40px; }
}

/* Respect reduced motion: no shimmer sweep, no transforms */
@media (prefers-reduced-motion: reduce) {
  .catalogue__page-ph,
  .catalogue__skeleton-page { animation: none; }
  .catalogue__thumb { transition: none; }
}

/* No-JS: the React app never mounts, so show the fallback block that lives in
   the page's <noscript>. Nothing to style here beyond the shared .btn. */