/* Estils de les pàgines individuals de llibre — Biblioteca Nina Sisena */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'Nunito', sans-serif;
  background: linear-gradient(135deg, #d4a574 0%, #c9956a 50%, #b8875a 100%);
  color: #1f1f1f;
  min-height: 100vh;
  line-height: 1.65;
}
h1, h2, h3 { font-family: 'Atma', sans-serif; font-weight: 600; line-height: 1.25; }
a { color: #8b4513; }

/* Capçalera (igual que el blog i el web) */
.site-header {
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 3px solid rgba(139, 69, 19, 0.2);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  position: sticky; top: 0; z-index: 200;
}
.site-header-bar {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  max-width: 1200px; margin: 0 auto; padding: 0.9rem 1.2rem; flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 0.6rem; text-decoration: none; white-space: nowrap; }
.brand img { height: 40px; width: 40px; object-fit: contain; }
.brand-title { font-family: 'Atma', sans-serif; font-weight: 700; font-size: 22px; color: #8b4513; }

.site-search { position: relative; display: flex; align-items: center; flex: 1 1 240px; max-width: 440px; min-width: 180px; }
.site-search-icon { position: absolute; right: 0.4rem; font-size: 17px; background: none; border: none; padding: 0.3rem 0.45rem; cursor: pointer; opacity: 0.75; line-height: 1; border-radius: 7px; }
.site-search-icon:hover { opacity: 1; background: #f0e4d8; }
.site-search input {
  width: 100%; padding: 0.6rem 2.6rem 0.6rem 0.9rem;
  border: 2px solid rgba(139,69,19,0.25); border-radius: 8px;
  font-family: 'Nunito', sans-serif; font-size: 15px; color: #5a3410;
  background: #fff; outline: none; transition: border-color 0.2s;
}
.site-search input::placeholder { color: #b0966f; }
.site-search input:focus { border-color: #8b4513; }

.dropdown { position: relative; }
.dropdown summary {
  list-style: none; cursor: pointer;
  background: #8b4513; color: #fff; border: none;
  width: 42px; height: 42px; border-radius: 8px; padding: 0;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Atma', sans-serif; font-size: 24px; line-height: 1;
}
.dropdown summary::-webkit-details-marker { display: none; }
.dropdown summary:hover { background: #6b3410; }
.dropdown[open] > .dropdown-menu { display: block; }
.dropdown-menu {
  display: none; position: absolute; right: 0; top: calc(100% + 0.5rem);
  background: #fff; border-radius: 10px; box-shadow: 0 8px 24px rgba(0,0,0,0.18);
  min-width: 210px; overflow: hidden; border: 1px solid rgba(139,69,19,0.15); z-index: 210;
}
.dropdown-menu a {
  display: block; padding: 0.85rem 1.1rem; text-decoration: none;
  font-family: 'Atma', sans-serif; font-weight: 600; font-size: 15px; color: #8b4513; transition: background .2s;
}
.dropdown-menu a:hover { background: #f5f1ed; }

/* Contenidor */
.wrap { max-width: 900px; margin: 2rem auto; padding: 0 1.2rem 3.5rem; }
.breadcrumb { font-size: 13.5px; color: #6b4a2e; margin-bottom: 1rem; }
.breadcrumb a { color: #6b4a2e; text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }

/* Targeta del llibre */
.book-page {
  background: #fffdfb; border-radius: 18px; padding: 2.4rem 2rem;
  box-shadow: 0 10px 30px rgba(0,0,0,0.12);
}
@media (max-width: 600px) { .book-page { padding: 1.6rem 1.2rem; } }

/* Capçalera del llibre: portada + dades */
.book-hero { display: flex; gap: 2rem; align-items: flex-start; }
@media (max-width: 640px) { .book-hero { flex-direction: column; align-items: center; text-align: center; } }

.book-cover {
  flex: 0 0 260px; width: 260px; max-width: 100%;
  border-radius: 14px; overflow: hidden;
  box-shadow: 0 8px 22px rgba(139,69,19,0.28);
  display: block; background: #f5f1ed; position: relative;
}
.book-cover img { width: 100%; display: block; aspect-ratio: 1/1; object-fit: cover; }
.book-cover .cover-hint {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: rgba(122,61,15,0.82); color: #fff; text-align: center;
  font-family: 'Atma', sans-serif; font-weight: 600; font-size: 13px;
  padding: 0.5rem; opacity: 0; transition: opacity .2s;
}
.book-cover:hover .cover-hint { opacity: 1; }

.book-meta { flex: 1 1 280px; min-width: 0; }
.book-meta h1 { font-size: 1.9rem; color: #7a3d0f; margin-bottom: 0.5rem; }
.book-byline { font-size: 1.05rem; color: #a4632c; font-weight: 600; margin-bottom: 1rem; }
.book-byline a { color: #a4632c; text-decoration: none; }
.book-byline a:hover { text-decoration: underline; }

.age-badges { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.1rem; justify-content: inherit; }
.age-badge {
  background: #f0e4d8; color: #7a3d0f; font-family: 'Atma', sans-serif; font-weight: 600;
  font-size: 13px; padding: 0.35rem 0.8rem; border-radius: 20px;
}

.book-facts { list-style: none; margin: 0 0 1.4rem; font-size: 0.98rem; color: #4a3a2c; }
.book-facts li { margin-bottom: 0.3rem; }
.book-facts .k { font-weight: 700; color: #7a3d0f; }
.book-facts a { color: #8b4513; text-decoration: none; }
.book-facts a:hover { text-decoration: underline; }

.book-actions { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 0.4rem; }
.btn {
  display: inline-block; text-decoration: none; text-align: center;
  font-family: 'Atma', sans-serif; font-weight: 600; font-size: 1rem;
  padding: 0.75rem 1.4rem; border-radius: 10px; transition: background .15s, transform .15s;
}
.btn-primary { background: #8b4513; color: #fff; }
.btn-primary:hover { background: #6b3410; transform: translateY(-2px); }
.btn-amazon { background: #ff9900; color: #3a2600; }
.btn-amazon:hover { background: #e88a00; transform: translateY(-2px); }
.btn-fav { background: #f6e7e0; color: #8b4513; border: 2px solid #e3cabe; cursor: pointer; font-family: 'Atma', sans-serif; }
.btn-fav:hover { background: #efd7cc; transform: translateY(-2px); }
.btn-fav.favorited { background: #e9b7ab; color: #7a2f1a; border-color: #d98a8a; }

/* Descripció rica (reutilitza els recuadres de les fitxes) */
.book-desc { margin-top: 2.2rem; }
.book-desc h2 { font-size: 1.4rem; color: #7a3d0f; margin: 0 0 1rem; }
.book-desc p { margin: 0 0 1rem; font-size: 1.03rem; color: #3f342b; }
.book-desc strong { color: #8b4513; font-weight: 700; }
.book-desc .info-box {
  background: #f3e7db; border-left: 5px solid #d4a574;
  padding: 1rem 1.2rem; border-radius: 0 8px 8px 0; margin: 1.4rem 0;
}
.book-desc .info-box-label { font-family: 'Atma', sans-serif; font-weight: 600; color: #a05a1f; display: block; margin-bottom: 0.3rem; }
.book-desc .info-box.box-green { background: #eef3e7; border-left-color: #a9c47f; }
.book-desc .info-box.box-green .info-box-label { color: #5c7a2f; }

/* Temes */
.book-themes { margin-top: 1.8rem; }
.book-themes h2 { font-size: 1.15rem; color: #7a3d0f; margin-bottom: 0.7rem; }
.theme-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.theme-tag {
  background: #f7f0e8; color: #6b4a2e; font-size: 13px; font-weight: 600;
  padding: 0.3rem 0.75rem; border-radius: 16px;
}

/* Llibres relacionats */
.related { margin-top: 2.6rem; border-top: 2px solid #f0e4d8; padding-top: 1.6rem; }
.related h2 { font-size: 1.3rem; color: #7a3d0f; margin-bottom: 1rem; }
.books-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 1.2rem;
}
.book-card {
  display: block; background: #fff; border-radius: 12px; overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15); border: 2px solid transparent;
  text-decoration: none; transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.book-card:hover { transform: translateY(-8px); box-shadow: 0 12px 24px rgba(139,69,19,0.25); border-color: #d4a574; }
.book-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; display: block; background: #f5f1ed; }
.book-card-info { padding: 0.9rem; text-align: center; }
.book-card-title {
  font-family: 'Atma', sans-serif; font-size: 13px; font-weight: 700; color: #8b4513;
  margin-bottom: 0.35rem; line-height: 1.3;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.book-card-author { font-size: 11px; color: #b8875a; font-weight: 500; }

/* Galeria d'imatges del llibre */
.book-gallery { margin-top: 2.2rem; }
.book-gallery h2 { font-size: 1.3rem; color: #7a3d0f; margin-bottom: 1rem; }
.gallery-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 0.9rem;
}
.gallery-thumb {
  border: none; padding: 0; margin: 0; background: #f5f1ed; cursor: zoom-in;
  border-radius: 10px; overflow: hidden; box-shadow: 0 3px 10px rgba(0,0,0,0.15);
  transition: transform .2s ease, box-shadow .2s ease; display: block;
}
.gallery-thumb:hover { transform: translateY(-4px); box-shadow: 0 8px 18px rgba(139,69,19,0.28); }
.gallery-thumb img { width: 100%; aspect-ratio: 1/1; object-fit: cover; display: block; }

.book-cover { cursor: zoom-in; }

/* Visor a pantalla completa (lightbox) */
.lightbox {
  display: none; position: fixed; inset: 0; z-index: 1000;
  background: rgba(40, 22, 8, 0.94); align-items: center; justify-content: center;
  flex-direction: column; padding: 1.5rem; touch-action: pan-y;
}
.lightbox.open { display: flex; }
.lightbox img {
  max-width: 92vw; max-height: 80vh; object-fit: contain;
  border-radius: 8px; box-shadow: 0 10px 40px rgba(0,0,0,0.5);
}
.lightbox-counter { color: #fff; font-family: 'Atma', sans-serif; margin-top: 1rem; font-size: 15px; }
.lb-btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: rgba(255,255,255,0.16); color: #fff; border: none;
  width: 54px; height: 54px; border-radius: 50%; font-size: 26px; cursor: pointer;
  display: flex; align-items: center; justify-content: center; transition: background .15s;
}
.lb-btn:hover { background: rgba(255,255,255,0.32); }
.lb-prev { left: 2vw; }
.lb-next { right: 2vw; }
.lb-close {
  position: absolute; top: 1.2rem; right: 1.4rem; background: rgba(255,255,255,0.16);
  color: #fff; border: none; width: 46px; height: 46px; border-radius: 50%;
  font-size: 24px; cursor: pointer; transition: background .15s;
}
.lb-close:hover { background: rgba(255,255,255,0.32); }
@media (max-width: 600px) {
  .lb-btn { width: 44px; height: 44px; font-size: 22px; }
}

/* Botons tornar (enrere / a la biblioteca) — grans i fàcils amb el polze */
.back-to-library {
  display: flex; justify-content: center; flex-wrap: wrap; gap: 0.7rem;
  margin: 2.4rem auto 0.5rem; max-width: 560px;
}
.back-to-library a {
  flex: 1 1 auto; min-width: 150px; text-align: center;
  display: inline-block; background: #8b4513; color: #fff; text-decoration: none;
  font-family: 'Atma', sans-serif; font-weight: 600; font-size: 1.05rem;
  padding: 0.9rem 1.6rem; border-radius: 12px; transition: background .15s;
}
.back-to-library a:hover { background: #6b3410; }
.back-to-library .back-arrow {
  background: #e8d4c4; color: #8b4513;
}
.back-to-library .back-arrow:hover { background: #8b4513; color: #fff; }

/* Peu */
.foot { text-align: center; color: rgba(255,255,255,0.85); font-size: 13px; margin-top: 2rem; }
.foot a { color: #fff; }
.foot-ig-line { text-align: center; margin-top: 0.55rem; }
.foot-ig { display: inline-flex; align-items: center; gap: 0.4rem; color: rgba(255,255,255,0.8); text-decoration: none; font-size: 13px; font-weight: 600; transition: color .15s; }
.foot-ig:hover { color: #fff; }
.foot-ig svg { display: block; }