/* =====================================================================
   Bibliothèque numérique ISAGE/KAHUZI-BIEGA
   Palette : vert #166534 / vert foncé #0e2a17 / or #d4a017
   ===================================================================== */
:root {
    --biblio-green: #166534;
    --biblio-green-dark: #0e2a17;
    --biblio-gold: #d4a017;
    --biblio-ink: #1f2a24;
    --biblio-muted: #6b7a71;
    --biblio-line: #e4eae6;
    --biblio-bg-soft: #f4f8f5;
}

/* ---- Hero premium -------------------------------------------------- */
.biblio-hero {
    position: relative;
    padding: clamp(2rem, 4vw, 3rem) 0 clamp(4.5rem, 8vw, 7rem);
    background:
        radial-gradient(1200px 400px at 80% -10%, rgba(212, 160, 23, .16), transparent 60%),
        linear-gradient(135deg, var(--biblio-green-dark) 0%, var(--biblio-green) 100%);
    color: #fff;
    overflow: hidden;
}
/* Motif quadrillé subtil */
.biblio-hero__grid-motif {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
    background-size: 46px 46px;
    -webkit-mask-image: radial-gradient(120% 80% at 50% 0%, #000 40%, transparent 100%);
    mask-image: radial-gradient(120% 80% at 50% 0%, #000 40%, transparent 100%);
    pointer-events: none;
}
.biblio-hero::after {
    content: "";
    position: absolute;
    right: -7rem;
    bottom: -9rem;
    width: 30rem;
    height: 30rem;
    border-radius: 50%;
    border: 1px solid rgba(212, 160, 23, .25);
    box-shadow: 0 0 0 44px rgba(212, 160, 23, .035);
    pointer-events: none;
}
.biblio-hero .container { position: relative; z-index: 1; }

/* Fil d'Ariane */
.biblio-breadcrumb {
    display: flex;
    align-items: center;
    gap: .55rem;
    margin-bottom: 1.6rem;
    font-size: .82rem;
    color: rgba(255, 255, 255, .6);
}
.biblio-breadcrumb a { color: rgba(255, 255, 255, .82); text-decoration: none; transition: color .2s; }
.biblio-breadcrumb a:hover { color: var(--biblio-gold); }
.biblio-breadcrumb i { font-size: .6rem; color: rgba(255, 255, 255, .4); }

/* Grille du hero : contenu + statistiques */
.biblio-hero__grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: clamp(2rem, 5vw, 4rem);
    align-items: center;
}
.biblio-hero__content { max-width: 640px; }
.biblio-hero__overline {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .42rem .95rem;
    margin-bottom: 1.1rem;
    border: 1px solid rgba(212, 160, 23, .5);
    border-radius: 2rem;
    color: var(--biblio-gold);
    font-size: .76rem;
    font-weight: 700;
    letter-spacing: .09em;
    text-transform: uppercase;
}
.biblio-hero__title {
    margin: 0 0 1rem;
    font-family: "Playfair Display", Georgia, serif;
    font-size: clamp(2.3rem, 5vw, 3.6rem);
    font-weight: 700;
    line-height: 1.04;
    letter-spacing: -.01em;
    color: #fff !important;
}
.biblio-hero__lead {
    margin: 0 0 1.8rem;
    max-width: 560px;
    color: rgba(255, 255, 255, .85);
    font-size: 1.05rem;
    line-height: 1.7;
}
/* Barre de recherche intégrée */
.biblio-hero__searchbar {
    display: flex;
    align-items: center;
    gap: .5rem;
    max-width: 560px;
    padding: .45rem .45rem .45rem 1.1rem;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 20px 45px rgba(0, 0, 0, .22);
}
.biblio-hero__searchbar > i { color: var(--biblio-green); font-size: 1rem; }
.biblio-hero__searchbar input {
    flex: 1;
    min-width: 0;
    border: none;
    outline: none;
    background: transparent;
    font-size: 1rem;
    color: var(--biblio-ink);
    padding: .55rem .2rem;
}
.biblio-hero__searchbar input::placeholder { color: #9aa8a0; }
.biblio-hero__searchbar button {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .7rem 1.4rem;
    border: none;
    border-radius: 10px;
    background: var(--biblio-green);
    color: #fff;
    font-size: .92rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color .2s ease;
    white-space: nowrap;
}
.biblio-hero__searchbar button:hover { background: var(--biblio-green-dark); }
.biblio-hero__searchbar button i { font-size: .8rem; }

/* Statistiques (cartes verre) */
.biblio-hero__aside { display: flex; gap: 1rem; }
.biblio-stat {
    min-width: 118px;
    padding: 1.3rem 1.1rem;
    text-align: center;
    background: rgba(255, 255, 255, .07);
    border: 1px solid rgba(255, 255, 255, .14);
    border-radius: 14px;
    backdrop-filter: blur(6px);
}
.biblio-stat i { color: var(--biblio-gold); font-size: 1.1rem; margin-bottom: .5rem; }
.biblio-stat strong {
    display: block;
    font-family: "Playfair Display", Georgia, serif;
    font-size: 2rem;
    line-height: 1;
    color: #fff;
}
.biblio-stat span {
    display: block;
    margin-top: .3rem;
    font-size: .78rem;
    letter-spacing: .03em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, .72);
}

/* ---- Container ----------------------------------------------------- */
.biblio-container { padding-top: 2.5rem; padding-bottom: 4rem; }

/* ---- Filtre avancé ------------------------------------------------- */
.biblio-filters {
    margin-top: -4.5rem;
    margin-bottom: 1.5rem;
    padding: 1.5rem;
    background: #fff;
    border: 1px solid var(--biblio-line);
    border-radius: 16px;
    box-shadow: 0 22px 50px rgba(14, 42, 23, .1);
    position: relative;
    z-index: 3;
}
.biblio-filters__search {
    position: relative;
    margin-bottom: 1rem;
}
.biblio-filters__search i {
    position: absolute;
    top: 50%;
    left: 1.1rem;
    transform: translateY(-50%);
    color: var(--biblio-green);
}
.biblio-filters__search input {
    width: 100%;
    padding: .9rem 1rem .9rem 2.8rem;
    border: 1px solid var(--biblio-line);
    border-radius: 12px;
    background: var(--biblio-bg-soft);
    font-size: 1rem;
    color: var(--biblio-ink);
    transition: border-color .2s, box-shadow .2s;
}
.biblio-filters__search input:focus {
    outline: none;
    border-color: var(--biblio-green);
    box-shadow: 0 0 0 3px rgba(22, 101, 52, .12);
    background: #fff;
}
.biblio-filters__row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 1rem;
}
.biblio-field label {
    display: block;
    margin-bottom: .35rem;
    font-size: .78rem;
    font-weight: 700;
    letter-spacing: .03em;
    text-transform: uppercase;
    color: var(--biblio-muted);
}
.biblio-field label i { color: var(--biblio-gold); margin-right: .3rem; }
.biblio-field select {
    width: 100%;
    padding: .7rem .8rem;
    border: 1px solid var(--biblio-line);
    border-radius: 10px;
    background: #fff;
    font-size: .92rem;
    color: var(--biblio-ink);
    cursor: pointer;
}
.biblio-field select:focus { outline: none; border-color: var(--biblio-green); box-shadow: 0 0 0 3px rgba(22, 101, 52, .1); }
.biblio-filters__actions { display: flex; flex-wrap: wrap; gap: .6rem; }

/* ---- Boutons ------------------------------------------------------- */
.biblio-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    padding: .7rem 1.3rem;
    border: 1px solid transparent;
    border-radius: 10px;
    font-size: .9rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all .2s ease;
    white-space: nowrap;
}
.biblio-btn--sm { padding: .55rem .9rem; font-size: .82rem; }
.biblio-btn--primary { background: var(--biblio-green); color: #fff; }
.biblio-btn--primary:hover { background: var(--biblio-green-dark); color: #fff; }
.biblio-btn--outline { background: #fff; border-color: var(--biblio-green); color: var(--biblio-green); }
.biblio-btn--outline:hover { background: var(--biblio-green); color: #fff; }
.biblio-btn--ghost { background: var(--biblio-bg-soft); color: var(--biblio-ink); border-color: var(--biblio-line); }
.biblio-btn--ghost:hover { background: #eef4f0; color: var(--biblio-green-dark); }

/* ---- Barre de résultats ------------------------------------------- */
.biblio-resultbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    color: var(--biblio-muted);
    font-size: .92rem;
    font-weight: 600;
}

/* ---- Grille de documents ------------------------------------------ */
.biblio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.6rem;
}
.biblio-card {
    display: flex;
    flex-direction: column;
    background: #fff;
    border: 1px solid var(--biblio-line);
    border-radius: 14px;
    overflow: hidden;
    transition: transform .25s ease, box-shadow .25s ease;
}
.biblio-card:hover { transform: translateY(-5px); box-shadow: 0 20px 40px rgba(14, 42, 23, .12); }
.biblio-card__cover {
    position: relative;
    aspect-ratio: 16 / 10;
    background: var(--biblio-bg-soft);
    overflow: hidden;
}
.biblio-card__cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.biblio-card:hover .biblio-card__cover img { transform: scale(1.05); }
.biblio-card__badge {
    position: absolute;
    top: .8rem;
    left: .8rem;
    padding: .35rem .7rem;
    border-radius: 6px;
    background: rgba(14, 42, 23, .85);
    color: var(--biblio-gold);
    font-size: .68rem;
    font-weight: 700;
    letter-spacing: .04em;
    text-transform: uppercase;
    backdrop-filter: blur(4px);
}
.biblio-card__body { flex: 1; padding: 1.2rem 1.3rem .5rem; }
.biblio-card__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: .6rem;
    color: var(--biblio-muted);
    font-size: .8rem;
    font-weight: 600;
}
.biblio-card__meta i { color: var(--biblio-gold); margin-right: .25rem; }
.biblio-card__title {
    margin: 0 0 .5rem;
    font-family: "Playfair Display", Georgia, serif;
    font-size: 1.2rem;
    font-weight: 700;
    line-height: 1.3;
    color: var(--biblio-green-dark);
}
.biblio-card__title a { color: inherit; text-decoration: none; }
.biblio-card__title a:hover { color: var(--biblio-green); }
.biblio-card__cover { display: block; }
.biblio-card__cta { width: 100%; }
.biblio-card__author {
    margin: 0 0 .6rem;
    font-size: .85rem;
    font-weight: 600;
    color: var(--biblio-green);
}
.biblio-card__author i { margin-right: .3rem; }
.biblio-card__excerpt {
    margin: 0;
    font-size: .9rem;
    line-height: 1.6;
    color: var(--biblio-muted);
}
.biblio-card__footer {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    padding: 1rem 1.3rem 1.3rem;
    border-top: 1px solid var(--biblio-line);
    margin-top: .8rem;
}

/* ---- État vide ----------------------------------------------------- */
.biblio-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem 1rem;
    color: var(--biblio-muted);
}
.biblio-empty i { font-size: 3rem; color: var(--biblio-line); margin-bottom: 1rem; }
.biblio-empty h3 { color: var(--biblio-ink); font-size: 1.3rem; margin-bottom: .5rem; }

/* ---- Pagination ---------------------------------------------------- */
.biblio-pagination {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: .4rem;
    margin-top: 3rem;
}
.biblio-page {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 42px;
    height: 42px;
    padding: 0 .6rem;
    border: 1px solid var(--biblio-line);
    border-radius: 10px;
    background: #fff;
    color: var(--biblio-ink);
    font-weight: 600;
    text-decoration: none;
    transition: all .2s;
}
.biblio-page:hover { border-color: var(--biblio-green); color: var(--biblio-green); }
.biblio-page.is-active { background: var(--biblio-green); border-color: var(--biblio-green); color: #fff; }
.biblio-page--dots { border: none; background: transparent; pointer-events: none; }

/* ---- Modal résumé -------------------------------------------------- */
.biblio-modal { border: none; border-radius: 16px; overflow: hidden; }
.biblio-modal .modal-header { background: var(--biblio-green-dark); color: #fff; border: none; }
.biblio-modal .modal-title { font-family: "Playfair Display", Georgia, serif; }
.biblio-modal .btn-close { filter: invert(1) grayscale(1) brightness(1.6); }
.biblio-modal__body { padding: 1.8rem; font-size: 1rem; line-height: 1.75; color: var(--biblio-ink); }
.biblio-modal__body img { max-width: 100%; height: auto; border-radius: 8px; }
.biblio-modal__body h1, .biblio-modal__body h2, .biblio-modal__body h3 { color: var(--biblio-green-dark); }

/* ---- Responsive ---------------------------------------------------- */
@media (max-width: 991.98px) {
    .biblio-grid { grid-template-columns: repeat(2, 1fr); }
    .biblio-filters__row { grid-template-columns: repeat(2, 1fr); }
    .biblio-hero__grid { grid-template-columns: 1fr; }
    .biblio-hero__aside { justify-content: flex-start; }
}
@media (max-width: 575.98px) {
    .biblio-grid { grid-template-columns: 1fr; }
    .biblio-filters__row { grid-template-columns: 1fr; }
    .biblio-filters { margin-top: -3rem; padding: 1.2rem; }
    .biblio-card__footer .biblio-btn { flex: 1 1 auto; }
    .biblio-hero__searchbar { flex-wrap: wrap; padding: .6rem; }
    .biblio-hero__searchbar input { flex: 1 1 100%; padding: .5rem .6rem; }
    .biblio-hero__searchbar button { flex: 1 1 100%; justify-content: center; }
    .biblio-hero__aside { width: 100%; }
    .biblio-stat { flex: 1 1 auto; min-width: 0; }
}