/* Centre Sahélien pour la Biodiversité - pages Galerie (partials/galerie/*), préfixe .csb-ga-
   Chargé après csb.css et csb-formation.css (typographie main.csb-fo, bandeau) par galerie-photos.php et galerie-videos.php. */

.csb-ga-section { padding: 64px 0 80px; background: #fff; }
.csb-ga-videos.csb-ga-section { background: #F8F7F0; }
body main.csb-fo .csb-ga-intro:not(#csb) { margin: 0 0 20px; color: #4C5A51; }

/* --- Filtres : défilement horizontal interne à la barre seulement --- */
.csb-ga-filtres { display: flex; gap: 8px; overflow-x: auto; padding: 4px 4px 10px; margin: 0 -4px 6px; scrollbar-width: thin; }
.csb-ga-filtres[hidden] { display: none; }
/* Sur grand écran, les filtres passent à la ligne : rien n'est coupé */
@media (min-width: 992px) { .csb-ga-filtres { flex-wrap: wrap; overflow-x: visible; } }
.csb-ga-filtre { flex: none; display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 0 16px; border-radius: 100px;
  border: 1.5px solid rgba(0, 69, 64, .28); background: #fff; color: #16231A; font-size: 15px; font-weight: 500; cursor: pointer; transition: background-color .2s, color .2s, border-color .2s; }
.csb-ga-filtre:hover { border-color: var(--theme-color-3); color: var(--theme-color-3); }
.csb-ga-filtre[aria-pressed="true"] { background: var(--theme-color-3); border-color: var(--theme-color-3); color: #fff; font-weight: 600; }
.csb-ga-filtre:focus-visible { outline: 3px solid var(--theme-color-3); outline-offset: 2px; }
.csb-ga-nb { font-size: 13px; font-weight: 600; font-variant-numeric: tabular-nums; padding: 1px 8px; border-radius: 100px; background: #F8F7F0; color: var(--theme-color-3); }
.csb-ga-filtre[aria-pressed="true"] .csb-ga-nb { background: var(--theme-color-2); color: var(--theme-color-3); }
body main.csb-fo .csb-ga-annonce:not(#csb) { margin: 0 0 22px; font-size: 15px; font-weight: 600; color: var(--theme-color-3); }

/* --- Grille des photos : 4 / 3 / 2 / 1 colonnes --- */
.csb-ga-grille { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px 18px; }
.csb-ga-item[hidden] { display: none; }
.csb-ga-photo { margin: 0; }
.csb-ga-photo a { display: block; overflow: hidden; border-radius: 6px; background: #F8F7F0; }
.csb-ga-photo img { display: block; width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; transition: transform .4s ease; }
.csb-ga-photo a:hover img { transform: scale(1.03); }
.csb-ga-photo a:focus-visible { outline: 3px solid var(--theme-color-3); outline-offset: 3px; }
.csb-ga-photo figcaption { margin-top: 8px; font-size: 14px; line-height: 1.45; color: #4C5A51; }
@media (max-width: 1199px) { .csb-ga-grille { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 991px) { .csb-ga-grille { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 575px) { .csb-ga-grille { grid-template-columns: 1fr; } }

body main.csb-fo .csb-ga-vide:not(#csb) { margin: 8px 0 0; color: #4C5A51; }
.csb-ga-plus-zone { display: flex; justify-content: center; margin-top: 36px; }
.csb-ga-plus { min-height: 44px; padding: 0 24px; border-radius: 100px; border: 1.5px solid var(--theme-color-3); background: #fff; color: var(--theme-color-3);
  font-size: 15px; font-weight: 600; cursor: pointer; transition: background-color .2s, color .2s; }
.csb-ga-plus:hover { background: var(--theme-color-3); color: #fff; }
.csb-ga-plus:focus-visible { outline: 3px solid var(--theme-color-3); outline-offset: 3px; }
.csb-ga-plus[hidden] { display: none; }

/* --- Grille des vidéos : cartes de l'accueil (csb.css), dans une liste --- */
.csb-ga-grille-videos { list-style: none; padding: 0; margin: 0; }
.csb-ga-grille-videos > li { display: flex; }
.csb-ga-grille-videos > li > .csb-video-card { flex: 1; }
.csb-ga-vide-bloc { max-width: 640px; }
@media (max-width: 1199px) { .csb-ga-grille-videos.csb-videos-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 767px) { .csb-ga-grille-videos.csb-videos-grid { grid-template-columns: 1fr; } }

/* --- Crédits --- */
.csb-ga-credits { padding: 0 0 56px; background: #fff; }
.csb-ga-credits p { display: flex; gap: 12px; align-items: flex-start; max-width: 760px; margin: 0; padding: 16px 20px; border-radius: 8px; background: #F8F7F0; }
body main.csb-fo .csb-ga-credits p:not(#csb) { font-size: 15px; color: #16231A; }
.csb-ga-credits i { margin-top: 4px; color: var(--theme-color-3); }
.csb-ga-credits a { font-weight: 600; color: var(--theme-color-3); text-decoration: underline; text-underline-offset: 3px; }

/* --- Suite : bandeau d'appel --- */
.csb-ga-suite { padding: 0 0 88px; background: #fff; }
.csb-ga-videos + .csb-ga-suite { padding-top: 64px; background: #fff; }
.csb-ga-suite-boite { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px 40px; padding: 40px 44px; border-radius: 10px; background: var(--theme-color-3); }
body main.csb-fo .csb-ga-suite h2:not(#csb) { color: #fff; margin: 0; }
body main.csb-fo .csb-ga-suite p:not(#csb) { margin: 10px 0 0; color: rgba(255, 255, 255, .9); max-width: 60ch; }
.csb-ga-suite-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 24px; }
.csb-ga-lien-clair { color: #fff; font-weight: 600; text-decoration: underline; text-underline-offset: 4px; }
.csb-ga-lien-clair:hover { color: var(--theme-color-2); }
.csb-ga-suite a:focus-visible { outline: 3px solid var(--theme-color-2); outline-offset: 3px; }
@media (max-width: 575px) { .csb-ga-suite-boite { padding: 28px 22px; } }

@media (prefers-reduced-motion: reduce) { .csb-ga-photo img, .csb-ga-filtre, .csb-ga-plus { transition: none; } .csb-ga-photo a:hover img { transform: none; } }

/* --- Albums (page Photos) : grille de dossiers, puis un album à la fois --- */
.csb-alb-grille { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 40px 28px; }
.csb-alb { display: flex; flex-direction: column; color: inherit; text-decoration: none; }
/* pile de tirages : deux feuilles décalées derrière la couverture */
.csb-alb-pile { display: block; margin-top: 10px; border-radius: 6px; box-shadow: 0 -5px 0 -1px #E4E9E4, 0 -10px 0 -2px #F0F3F0; transition: box-shadow .25s ease; }
.csb-alb-couv { display: block; overflow: hidden; border-radius: 6px; background: #F8F7F0; aspect-ratio: 4 / 3; }
.csb-alb-couv img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.csb-alb:hover .csb-alb-pile { box-shadow: 0 -7px 0 -1px #D5DDD6, 0 -14px 0 -2px #E4E9E4; }
.csb-alb:hover .csb-alb-couv img { transform: scale(1.03); }
.csb-alb:focus-visible { outline: 3px solid var(--theme-color-3); outline-offset: 6px; border-radius: 6px; }
.csb-alb-nom { margin-top: 14px; font-family: var(--csb-font-titre); font-size: 20px; line-height: 1.25; font-weight: 600; color: var(--theme-color-3); }
.csb-alb-nb { margin-top: 2px; font-size: 14px; color: #4C5A51; font-variant-numeric: tabular-nums; }
@media (max-width: 1199px) { .csb-alb-grille { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 767px) { .csb-alb-grille { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px 16px; } .csb-alb-nom { font-size: 17px; } }

/* Barre de l'album ouvert : retour + petits liens texte vers les autres albums */
.csb-ga-barre { display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px 28px; margin: 0 0 28px; padding-bottom: 14px; border-bottom: 1px solid rgba(0, 69, 64, .12); }
.csb-ga-barre[hidden] { display: none; }
.csb-ga-retour { display: inline-flex; align-items: center; gap: 8px; min-height: 32px; font-size: 15px; font-weight: 600; color: var(--theme-color-3); text-decoration: none; }
.csb-ga-retour:hover { text-decoration: underline; text-underline-offset: 4px; }
.csb-ga-mini { display: flex; flex-wrap: wrap; gap: 4px 18px; }
.csb-ga-mini a { font-size: 14px; color: #4C5A51; text-decoration: none; padding: 4px 0; border-bottom: 1.5px solid transparent; }
.csb-ga-mini a:hover { color: var(--theme-color-3); }
.csb-ga-mini a[aria-current="true"] { color: var(--theme-color-3); font-weight: 600; border-bottom-color: var(--theme-color-2); }
.csb-ga-retour:focus-visible, .csb-ga-mini a:focus-visible { outline: 3px solid var(--theme-color-3); outline-offset: 3px; }
@media (max-width: 991px) { .csb-ga-mini { flex-wrap: nowrap; overflow-x: auto; max-width: 100%; scrollbar-width: thin; } .csb-ga-mini a { flex: none; } }

.csb-ga-album { margin-top: 56px; scroll-margin-top: 110px; }
.csb-ga-album[hidden], .csb-ga-vue-albums[hidden] { display: none; }
.csb-ga-albums-js .csb-ga-album { margin-top: 0; }
.csb-ga-album-tete { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 16px; margin-bottom: 22px; }
body main.csb-fo .csb-ga-album-tete h3:not(#csb) { margin: 0; font-family: var(--csb-font-titre); font-weight: 600; font-size: clamp(24px, 21px + .9vw, 32px); line-height: 1.2; }
.csb-ga-album-tete h3:focus { outline: none; }
body main.csb-fo .csb-ga-album-nb:not(#csb) { margin: 0; font-size: 15px; color: #4C5A51; }
.csb-ga-albums-js .csb-ga-grille { gap: 20px 16px; }
@media (prefers-reduced-motion: reduce) { .csb-alb-pile, .csb-alb-couv img { transition: none; } .csb-alb:hover .csb-alb-couv img { transform: none; } }