/* =========================================================
   DBC · Galerie de Réalisations — v2
   Architecture : conteneur en flow-root (hauteur toujours
   correcte), carrousel à translation (transform) avec
   slides à hauteur garantie par aspect-ratio.
   ========================================================= */

.dbc-gal {
    --dbc-gal-blue: #0d4899;
    --dbc-gal-orange: #f49826;
    --dbc-gal-aspect: 4 / 3;
    --dbc-gal-cols: 3;
    --dbc-gal-cols-tablet: 2;
    --dbc-gal-cols-mobile: 1;
    --dbc-gal-gap: 14px;
    --dbc-gal-radius: 16px;

    /* flow-root => le conteneur englobe TOUJOURS toute la hauteur
       de son contenu (carrousel inclus). Plus jamais d'effondrement. */
    display: flow-root;
    width: 100%;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}
.dbc-gal *, .dbc-gal *::before, .dbc-gal *::after { box-sizing: border-box; }

.dbc-gal__empty {
    padding: 40px;
    text-align: center;
    color: #64748b;
    background: #f8fafc;
    border: 2px dashed #cbd5e1;
    border-radius: 16px;
}

/* ============ ITEM (vignette commune) ============ */
.dbc-gal__item {
    position: relative;
    margin: 0;
    padding: 0;
    border-radius: var(--dbc-gal-radius);
    overflow: hidden;
    background: #e8eef6;
    box-shadow: 0 14px 30px -18px rgba(13, 72, 153, 0.45);
}
.dbc-gal__media {
    position: relative;
    width: 100%;
    aspect-ratio: var(--dbc-gal-aspect);
    overflow: hidden;
}
.dbc-gal__media img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}
.dbc-gal__item:hover .dbc-gal__media img { transform: scale(1.06); }

/* Loupe */
.dbc-gal__zoom {
    position: absolute;
    top: 12px; right: 12px;
    width: 40px; height: 40px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(255,255,255,0.92);
    color: var(--dbc-gal-blue);
    border-radius: 50%;
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.25s ease, transform 0.25s ease;
    pointer-events: none;
    z-index: 3;
}
.dbc-gal__item:hover .dbc-gal__zoom { opacity: 1; transform: scale(1); }

/* ============ CAPTION ============ */
.dbc-gal__caption {
    display: flex;
    flex-direction: column;
    gap: 5px;
    z-index: 2;
}
.dbc-gal__badge {
    align-self: flex-start;
    background: var(--dbc-gal-orange);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 4px 10px;
    border-radius: 20px;
}
.dbc-gal__title { font-size: 16px; font-weight: 800; color: #fff; line-height: 1.25; }
.dbc-gal__ville { font-size: 13px; color: rgba(255,255,255,0.9); font-weight: 600; }
.dbc-gal__desc  { font-size: 12.5px; color: rgba(255,255,255,0.82); line-height: 1.4; }

/* Overlay AU SURVOL */
.dbc-gal--overlay-hover .dbc-gal__caption {
    position: absolute;
    inset: 0;
    justify-content: flex-end;
    padding: 18px;
    background: linear-gradient(to top, rgba(7,18,33,0.88) 0%, rgba(7,18,33,0.4) 55%, transparent 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}
.dbc-gal--overlay-hover .dbc-gal__item:hover .dbc-gal__caption { opacity: 1; }

/* Dégradé PERMANENT */
.dbc-gal--overlay-gradient .dbc-gal__caption {
    position: absolute;
    inset: 0;
    justify-content: flex-end;
    padding: 18px;
    background: linear-gradient(to top, rgba(7,18,33,0.9) 0%, rgba(7,18,33,0.45) 50%, transparent 100%);
}

/* TOUJOURS visible (sous la photo) */
.dbc-gal--overlay-always .dbc-gal__item {
    background: #fff;
    box-shadow: 0 14px 34px -20px rgba(13,72,153,0.5);
}
.dbc-gal--overlay-always .dbc-gal__media { border-radius: var(--dbc-gal-radius) var(--dbc-gal-radius) 0 0; }
.dbc-gal--overlay-always .dbc-gal__caption {
    position: relative;
    padding: 14px 16px 16px;
    background: #fff;
}
.dbc-gal--overlay-always .dbc-gal__title { color: #0a1929; }
.dbc-gal--overlay-always .dbc-gal__ville { color: var(--dbc-gal-blue); }
.dbc-gal--overlay-always .dbc-gal__desc  { color: #64748b; }

/* ============ GRILLE ============ */
.dbc-gal__grid {
    display: grid;
    grid-template-columns: repeat(var(--dbc-gal-cols), 1fr);
    gap: var(--dbc-gal-gap);
}

/* ============ MASONRY ============ */
.dbc-gal--masonry .dbc-gal__grid {
    display: block;
    column-count: var(--dbc-gal-cols);
    column-gap: var(--dbc-gal-gap);
}
.dbc-gal--masonry .dbc-gal__item {
    break-inside: avoid;
    margin-bottom: var(--dbc-gal-gap);
    display: inline-block;
    width: 100%;
}
.dbc-gal--masonry .dbc-gal__media {
    aspect-ratio: auto;       /* hauteur naturelle de l'image */
}
.dbc-gal--masonry .dbc-gal__media img {
    position: static;
    height: auto;
}

/* =========================================================
   CARROUSEL — mécanique à translation (transform)
   - viewport : overflow hidden, largeur 100%
   - track : flex, se déplace via translateX(-N%)
   - slide : largeur = (100% - gaps) / nbVisible
   - hauteur garantie par aspect-ratio du media
   ========================================================= */
.dbc-gal__carousel { width: 100%; }

.dbc-gal__viewport {
    width: 100%;
    overflow: hidden;
    /* Hauteur de secours si le JS n'a pas encore fixé la hauteur :
       une rangée de slides au format choisi. Le JS l'ajuste ensuite
       précisément (syncHeight). */
    min-height: 10px;
}
.dbc-gal__track {
    display: flex;
    gap: var(--dbc-gal-gap);
    transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
    will-change: transform;
}
.dbc-gal__carousel .dbc-gal__item {
    flex: 0 0 calc((100% - (var(--dbc-gal-cols) - 1) * var(--dbc-gal-gap)) / var(--dbc-gal-cols));
    min-width: 0;
}
/* Pas de zoom de l'image au survol en carrousel (évite la confusion) */
.dbc-gal__carousel .dbc-gal__item:hover .dbc-gal__media img { transform: none; }

/* Navigation */
.dbc-gal__nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin-top: 18px;
}
.dbc-gal__arrow {
    width: 46px; height: 46px;
    flex-shrink: 0;
    border: 0;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--dbc-gal-blue), #2f7cc0);
    color: #fff;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
    box-shadow: 0 10px 24px -10px rgba(13,72,153,0.6);
}
.dbc-gal__arrow:hover { transform: translateY(-2px); }
.dbc-gal__arrow:active { transform: scale(0.94); }
.dbc-gal__arrow:disabled { opacity: 0.35; cursor: default; transform: none; }

.dbc-gal__dots {
    display: flex;
    align-items: center;
    gap: 8px;
}
.dbc-gal__dot {
    width: 9px; height: 9px;
    border: 0;
    padding: 0;
    border-radius: 50%;
    background: #cbd5e1;
    cursor: pointer;
    transition: background 0.25s ease, transform 0.25s ease;
}
.dbc-gal__dot.is-active {
    background: var(--dbc-gal-orange);
    transform: scale(1.35);
}

/* ============ FILTRES ============ */
.dbc-gal__filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 24px;
}
.dbc-gal__filter {
    border: 1.5px solid #e2e8f0;
    background: #fff;
    color: #475569;
    font-size: 14px;
    font-weight: 600;
    padding: 9px 20px;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.2s ease;
}
.dbc-gal__filter:hover { border-color: var(--dbc-gal-blue); color: var(--dbc-gal-blue); }
.dbc-gal__filter.is-active {
    background: linear-gradient(135deg, var(--dbc-gal-blue), #2f7cc0);
    border-color: transparent;
    color: #fff;
}
.dbc-gal__item.is-hidden { display: none; }

/* ============ LIGHTBOX ============ */
.dbc-gal-lightbox {
    position: fixed;
    inset: 0;
    z-index: 999999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}
.dbc-gal-lightbox.is-open { opacity: 1; visibility: visible; }
.dbc-gal-lightbox__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(5, 12, 24, 0.92);
}
.dbc-gal-lightbox__figure {
    position: relative;
    z-index: 1;
    margin: 0;
    max-width: 90vw;
    max-height: 86vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.dbc-gal-lightbox__img {
    max-width: 90vw;
    max-height: 78vh;
    border-radius: 12px;
    box-shadow: 0 30px 80px rgba(0,0,0,0.6);
    object-fit: contain;
}
.dbc-gal-lightbox__caption {
    margin-top: 14px;
    color: #fff;
    text-align: center;
    font-size: 15px;
    line-height: 1.4;
    max-width: 600px;
}
.dbc-gal-lightbox__caption strong { color: var(--dbc-gal-orange, #f49826); }
.dbc-gal-lightbox__close {
    position: absolute;
    top: 20px; right: 24px;
    z-index: 2;
    width: 48px; height: 48px;
    border: 0;
    background: rgba(255,255,255,0.12);
    color: #fff;
    border-radius: 50%;
    font-size: 32px;
    line-height: 1;
    cursor: pointer;
    transition: background 0.2s ease;
}
.dbc-gal-lightbox__close:hover { background: rgba(255,255,255,0.25); }
.dbc-gal-lightbox__nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    width: 54px; height: 54px;
    border: 0;
    background: rgba(255,255,255,0.12);
    color: #fff;
    border-radius: 50%;
    font-size: 34px;
    line-height: 1;
    cursor: pointer;
    transition: background 0.2s ease;
}
.dbc-gal-lightbox__nav:hover { background: rgba(255,255,255,0.25); }
.dbc-gal-lightbox__nav--prev { left: 20px; }
.dbc-gal-lightbox__nav--next { right: 20px; }

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
    .dbc-gal__grid { grid-template-columns: repeat(var(--dbc-gal-cols-tablet), 1fr); }
    .dbc-gal--masonry .dbc-gal__grid { column-count: var(--dbc-gal-cols-tablet); }
    .dbc-gal__carousel .dbc-gal__item {
        flex-basis: calc((100% - (var(--dbc-gal-cols-tablet) - 1) * var(--dbc-gal-gap)) / var(--dbc-gal-cols-tablet));
    }
    .dbc-gal { --dbc-gal-cols: var(--dbc-gal-cols-tablet); }
}
@media (max-width: 600px) {
    .dbc-gal__grid { grid-template-columns: repeat(var(--dbc-gal-cols-mobile), 1fr); }
    .dbc-gal--masonry .dbc-gal__grid { column-count: var(--dbc-gal-cols-mobile); }
    .dbc-gal__carousel .dbc-gal__item {
        flex-basis: calc((100% - (var(--dbc-gal-cols-mobile) - 1) * var(--dbc-gal-gap)) / var(--dbc-gal-cols-mobile));
    }
    .dbc-gal { --dbc-gal-cols: var(--dbc-gal-cols-mobile); }
    .dbc-gal__title { font-size: 15px; }
    .dbc-gal-lightbox { padding: 16px; }
    .dbc-gal-lightbox__nav { width: 44px; height: 44px; font-size: 28px; }
    .dbc-gal-lightbox__nav--prev { left: 8px; }
    .dbc-gal-lightbox__nav--next { right: 8px; }
    .dbc-gal-lightbox__close { top: 12px; right: 14px; }
}

@media (prefers-reduced-motion: reduce) {
    .dbc-gal__track, .dbc-gal__media img, .dbc-gal__caption, .dbc-gal__zoom { transition: none !important; }
}