/* ============================================================
 *  ecriVOSGES — Bibliothèque visuelle des couvertures
 *  Feuille autonome : n'altère aucune autre page.
 * ============================================================ */

.biblio-visuelle {
  --bv-encre: #181817;
  --bv-charbon: #22211f;
  --bv-charbon-2: #302d29;
  --bv-papier: #f7f0df;
  --bv-bordeaux: #7a1512;
  --bv-or: #c4a15b;
  --bv-filet: #c8b896;
  padding-bottom: 34px;
}

.bv-retour {
  margin: 15px 0 4px;
  font-size: 0.9rem;
}

.bv-retour a,
.bv-bas a {
  color: var(--bv-bordeaux);
  font-weight: 600;
}

.bv-entete {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: end;
  margin: 4px 0 15px;
  padding: 21px 24px;
  color: #fff;
  background: linear-gradient(135deg, var(--bv-charbon), #171615);
  border-bottom: 4px solid var(--bv-or);
  box-shadow: 0 8px 22px rgba(0,0,0,0.16);
}

.bv-surtitre {
  margin: 0 0 4px;
  color: #d9bd7f;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.bv-entete h1 {
  margin: 0;
  padding: 0;
  color: #fff8e9;
  font-size: clamp(2.15rem, 4.5vw, 3.45rem);
  line-height: 1;
}

.bv-chapeau {
  margin: 8px 0 0;
  color: #d7cfc1;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 1.15rem;
  font-style: italic;
}

.bv-introduction {
  max-width: 820px;
  margin: 0 auto 15px;
  color: #5f554a;
  font-size: 0.94rem;
  line-height: 1.55;
  text-align: center;
}

.bv-avertissement {
  margin: 0 0 12px;
  padding: 10px 13px;
  color: #623c18;
  background: #fff2cf;
  border-left: 4px solid #bd7a24;
}

.bv-statistiques {
  display: flex;
  gap: 18px;
  margin: 0;
}

.bv-statistiques div {
  min-width: 68px;
  text-align: center;
}

.bv-statistiques dt {
  color: #fff;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1;
}

.bv-statistiques dd {
  margin: 4px 0 0;
  color: #bcb3a5;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.bv-outils {
  display: grid;
  grid-template-columns: minmax(180px, 1.35fr) repeat(3, minmax(125px, 0.8fr)) auto;
  gap: 12px;
  align-items: end;
  margin: 0 0 13px;
  padding: 15px;
  background: var(--bv-papier);
  border: 1px solid var(--bv-filet);
}

.bv-outils label,
.bv-vues > span {
  display: block;
  margin-bottom: 5px;
  color: #655a4d;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.bv-outils input,
.bv-outils select,
.bv-outils button {
  min-height: 42px;
  box-sizing: border-box;
  font-family: "Source Sans 3", Helvetica, Arial, sans-serif;
  font-size: 0.92rem;
}

.bv-outils input,
.bv-outils select {
  width: 100%;
  padding: 7px 10px;
  color: #222;
  background: #fff;
  border: 1px solid #b8a98d;
  border-radius: 2px;
}

.bv-vues > div {
  display: flex;
}

.bv-vue {
  padding: 7px 10px;
  color: var(--bv-bordeaux);
  background: #fff;
  border: 1px solid #b8a98d;
  cursor: pointer;
}

.bv-vue + .bv-vue {
  border-left: 0;
}

.bv-vue.actif {
  color: #fff;
  background: var(--bv-bordeaux);
  border-color: var(--bv-bordeaux);
}

.bv-actions {
  grid-column: 1 / -1;
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.bv-actions button {
  padding: 7px 14px;
  color: #fff;
  background: var(--bv-bordeaux);
  border: 1px solid var(--bv-bordeaux);
  border-radius: 2px;
  font-weight: 700;
  cursor: pointer;
}

.bv-actions .bv-effacer {
  color: var(--bv-bordeaux);
  background: transparent;
}

.bv-outils input:focus-visible,
.bv-outils select:focus-visible,
.bv-outils button:focus-visible,
.bv-livre a:focus-visible {
  outline: 3px solid #afd601;
  outline-offset: 3px;
}

.bv-resultats-barre {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 10px;
  padding: 0 2px;
}

.bv-resultats-barre p {
  margin: 0;
  color: #746a5f;
  font-size: 0.84rem;
}

.bv-resultats-barre strong {
  color: var(--bv-bordeaux);
  font-size: 1rem;
}

.bv-indication {
  font-style: italic;
}

.bv-galerie {
  position: relative;
}

/* Mode MUR : les groupes disparaissent visuellement et toutes les
   couvertures participent à une seule mosaïque. */
.bv-galerie[data-mode="mur"] {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(132px, 1fr));
  gap: 18px 14px;
  padding: 20px;
  background: linear-gradient(145deg, var(--bv-charbon), #161514);
  border: 1px solid #111;
  box-shadow: inset 0 0 28px rgba(0,0,0,0.32);
}

.bv-galerie[data-mode="mur"] .bv-epoque,
.bv-galerie[data-mode="mur"] .bv-grille {
  display: contents;
}

.bv-galerie[data-mode="mur"] .bv-epoque-titre {
  display: none;
}

/* Mode RAYONNAGES : les décennies redeviennent visibles. */
.bv-galerie[data-mode="rayons"] .bv-epoque {
  margin: 0 0 25px;
}

.bv-epoque[hidden] {
  display: none !important;
}

.bv-epoque-titre {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 11px;
  padding: 6px 14px;
  color: #f9efd7;
  background: var(--bv-charbon);
  border-radius: 0;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 1.45rem;
  letter-spacing: 0;
  text-transform: none;
}

.bv-epoque-titre span {
  display: inline-flex;
  min-width: 25px;
  height: 25px;
  align-items: center;
  justify-content: center;
  color: #2d251a;
  background: var(--bv-or);
  border-radius: 50%;
  font-family: "Source Sans 3", sans-serif;
  font-size: 0.72rem;
}

.bv-grille {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(132px, 1fr));
  gap: 18px 14px;
  padding: 17px 17px 21px;
  background:
    linear-gradient(to bottom, transparent calc(100% - 7px), #553d2b calc(100% - 7px), #2e2119 100%),
    #eee8db;
  border: 1px solid #c7b89a;
}

.bv-livre {
  position: relative;
  min-width: 0;
  padding: 0;
  background: #fff;
  box-shadow: 0 5px 12px rgba(0,0,0,0.25);
  transition: transform 0.17s ease, box-shadow 0.17s ease;
}

.bv-livre:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 18px rgba(0,0,0,0.32);
}

.bv-livre.bv-choisie {
  outline: 4px solid #afd601;
  outline-offset: 5px;
  transform: translateY(-5px);
}

.bv-livre[hidden] {
  display: none !important;
}

.bv-couverture {
  position: relative;
  aspect-ratio: 2 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #d8d0c2;
}

.bv-couverture > a {
  display: flex;
  width: 100%;
  height: 100%;
  align-items: center;
  justify-content: center;
}

.bv-couverture img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #ebe5da;
}

.bv-image-manquante {
  display: none;
  padding: 10px;
  color: #756b61;
  font-size: 0.75rem;
  text-align: center;
}

.bv-couverture.image-en-erreur .bv-image-manquante {
  display: block;
}

.bv-legende {
  min-height: 116px;
  box-sizing: border-box;
  padding: 10px 9px 11px;
  border-top: 1px solid #ddd3c1;
}

.bv-legende p {
  margin: 0;
}

.bv-titre {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.12;
}

.bv-titre a,
.bv-titre a:visited {
  color: #59120f;
}

.bv-auteur {
  margin-top: 6px !important;
  color: #393532;
  font-size: 0.78rem;
  line-height: 1.25;
}

.bv-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 7px !important;
}

.bv-meta span {
  padding: 2px 5px;
  color: #6b5f50;
  background: #f2ead9;
  font-size: 0.66rem;
}

.bv-provenance {
  margin-top: 7px !important;
  color: #7a1512;
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.045em;
  line-height: 1.2;
  text-transform: uppercase;
}

.bv-aucun,
.bv-vide {
  padding: 20px;
  color: #594f45;
  background: var(--bv-papier);
  border: 1px solid var(--bv-filet);
  text-align: center;
}

.bv-bas {
  margin: 24px 0 0;
  text-align: center;
}

@media (prefers-reduced-motion: reduce) {
  .bv-livre { transition: none; }
}

@media (max-width: 768px) {
  .biblio-visuelle {
    padding-bottom: 20px;
  }

  .bv-entete {
    grid-template-columns: 1fr;
    gap: 17px;
    padding: 18px;
  }

  .bv-statistiques {
    justify-content: space-between;
    gap: 7px;
  }

  .bv-statistiques div {
    min-width: 0;
  }

  .bv-outils {
    grid-template-columns: 1fr;
  }

  .bv-actions {
    grid-column: auto;
    display: grid;
    grid-template-columns: 1fr;
  }

  .bv-actions button {
    width: 100%;
  }

  .bv-resultats-barre {
    display: block;
  }

  .bv-indication {
    margin-top: 4px !important;
  }

  .bv-galerie[data-mode="mur"],
  .bv-grille {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 13px 9px;
    padding: 10px;
  }

  .bv-legende {
    min-height: 112px;
    padding: 8px;
  }

  .bv-titre {
    font-size: 0.93rem;
  }
}

@media (min-width: 769px) and (max-width: 980px) {
  .bv-outils {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .bv-actions {
    grid-column: 1 / -1;
  }
}

@media print {
  .bv-retour,
  .bv-outils,
  .bv-indication,
  .bv-bas { display: none !important; }
  .bv-entete { color: #000; background: #fff; border: 0; box-shadow: none; }
  .bv-entete h1, .bv-surtitre { color: #000; }
  .bv-galerie[data-mode="mur"] { grid-template-columns: repeat(5, 1fr); padding: 0; background: #fff; border: 0; box-shadow: none; }
  .bv-livre { break-inside: avoid; box-shadow: none; border: 1px solid #bbb; }
}