/* Palafito — Biblioteca  v3 */
:root{--pal-ink:#0d2535;--pal-blue:#1e4d6b;--pal-gold:#c8902a;--pal-gold-l:#e8a040;--pal-muted:#5a7080;--pal-bg:#f6f8fa;--pal-border:#dde3e8;--pal-r:5px;--pal-shadow:0 3px 12px rgba(13,37,53,.18);--pal-shadow-h:0 10px 28px rgba(13,37,53,.28);--pal-trans:.22s ease}
.pal-libros,.pal-menu{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--pal-ink)}
.pal-libros__titulo{font-size:1.35rem;font-weight:700;color:var(--pal-ink);border-bottom:3px solid var(--pal-gold-l);padding-bottom:.35rem;margin-bottom:1.4rem}

/* Toolbar */
.pal-libros__toolbar{display:flex;flex-wrap:wrap;gap:.6rem;align-items:center;margin-bottom:1.4rem}
.pal-search-wrap{position:relative;flex:1;min-width:160px}
.pal-search-icon{position:absolute;left:.65rem;top:50%;transform:translateY(-50%);width:15px;height:15px;color:var(--pal-muted);pointer-events:none}
.pal-libros__search{width:100%;padding:.48rem .7rem .48rem 2rem;border:1px solid var(--pal-border);border-radius:var(--pal-r);font-size:.84rem;background:#fff;color:var(--pal-ink);box-sizing:border-box;outline-color:var(--pal-gold-l)}
.pal-filtros-wrap{display:flex;gap:.4rem;flex-wrap:wrap;align-items:center}
.pal-filtro{padding:.44rem .65rem;border:1px solid var(--pal-border);border-radius:var(--pal-r);font-size:.81rem;background:#fff;color:var(--pal-ink);cursor:pointer}
.pal-filtro-reset{padding:.38rem .6rem;border:1px solid var(--pal-border);border-radius:var(--pal-r);background:#fff;color:var(--pal-muted);font-size:.78rem;cursor:pointer;line-height:1}
.pal-filtro-reset:hover{background:#fee;color:#c00}

/* Grid */
.pal-libros__grid{display:grid;gap:1.2rem .9rem}
.pal-cols-2{grid-template-columns:repeat(2,1fr)}
.pal-cols-3{grid-template-columns:repeat(3,1fr)}
.pal-cols-4{grid-template-columns:repeat(4,1fr)}
.pal-cols-5{grid-template-columns:repeat(5,1fr)}
@media(max-width:1050px){.pal-cols-5{grid-template-columns:repeat(4,1fr)}}
@media(max-width:820px){.pal-cols-4,.pal-cols-5{grid-template-columns:repeat(3,1fr)}}
@media(max-width:580px){.pal-cols-3,.pal-cols-4,.pal-cols-5{grid-template-columns:repeat(2,1fr)}}
.pal-empty,.pal-sin-resultados{color:var(--pal-muted);font-size:.88rem;padding:2rem 0;grid-column:1/-1;text-align:center}

/* Tarjeta */
.pal-libro{display:flex;flex-direction:column;animation:palEntrada .3s ease both}
@keyframes palEntrada{from{opacity:0;transform:translateY(7px)}to{opacity:1;transform:translateY(0)}}

/* Portada */
.pal-libro__cover-wrap{
    display:block;position:relative;overflow:hidden;
    border-radius:var(--pal-r);
    box-shadow:var(--pal-shadow);
    aspect-ratio:2/3;
    transform-style:preserve-3d;
    perspective:700px;
    transition:transform var(--pal-trans),box-shadow var(--pal-trans)
}
.pal-libro__cover-wrap:hover{
    transform:translateY(-7px) rotateY(-5deg) scale(1.04);
    box-shadow:var(--pal-shadow-h)
}
.pal-libro__cover{
    width:100%;height:100%;object-fit:cover;display:block;
    background:#c8d4dc;
    transition:filter var(--pal-trans)
}
.pal-libro__cover-wrap:hover .pal-libro__cover{filter:brightness(1.06) saturate(1.05)}

/* Shimmer al hover */
.pal-libro__shimmer{
    position:absolute;inset:0;pointer-events:none;
    background:linear-gradient(115deg,transparent 30%,rgba(232,160,64,.4) 50%,transparent 70%);
    opacity:0;transform:translateX(-100%)
}
.pal-libro__cover-wrap:hover .pal-libro__shimmer{
    animation:palShimmer .55s ease forwards
}
@keyframes palShimmer{
    0%{opacity:0;transform:translateX(-100%)}
    20%{opacity:1}
    100%{opacity:0;transform:translateX(110%)}
}

/* Info */
.pal-libro__info{padding:.5rem 0 0;display:flex;flex-direction:column;flex:1;gap:.12rem}
.pal-libro__autor{font-size:.66rem;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--pal-gold);margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pal-libro__titulo{font-size:.85rem;font-weight:600;line-height:1.28;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pal-libro__titulo a{color:var(--pal-ink);text-decoration:none}
.pal-libro__titulo a:hover{color:var(--pal-blue)}
.pal-libro__badges{margin:.1rem 0;display:flex;flex-wrap:wrap;gap:.22rem}
.pal-badge{font-size:.61rem;font-weight:600;padding:1px 5px;border-radius:8px;white-space:nowrap;line-height:1.5}
.pal-badge--gen{background:rgba(200,144,42,.12);color:#7a5208;border:1px solid rgba(200,144,42,.3)}
.pal-badge--nal{background:rgba(30,77,107,.10);color:var(--pal-blue);border:1px solid rgba(30,77,107,.25)}
.pal-libro__sinopsis{font-size:.74rem;line-height:1.42;color:var(--pal-muted);margin:.08rem 0 0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.pal-libro__btn{display:inline-block;margin-top:.4rem;padding:.28rem .72rem;font-size:.73rem;font-weight:600;letter-spacing:.03em;background:var(--pal-ink);color:#fff;border-radius:var(--pal-r);text-decoration:none;align-self:flex-start;transition:background var(--pal-trans),transform .1s}
.pal-libro__btn:hover{background:var(--pal-blue);color:#fff;transform:translateY(-1px)}
.pal-libro[hidden]{display:none!important}

/* ── MENÚ [palafito_menu] ─────────────────────────────────── */
.pal-menu{border:1px solid var(--pal-border);border-radius:8px;overflow:hidden;background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.07)}
.pal-menu__tabs{display:flex;list-style:none;margin:0;padding:0;background:var(--pal-ink);border-bottom:3px solid var(--pal-gold)}
.pal-tab{padding:.7rem 1.3rem;border:none;background:transparent;color:rgba(255,255,255,.6);font-size:.88rem;font-weight:600;font-family:inherit;cursor:pointer;display:flex;align-items:center;gap:.4rem;transition:background .15s,color .15s;border-bottom:3px solid transparent;margin-bottom:-3px}
.pal-tab:hover{color:#fff;background:rgba(255,255,255,.08)}
.pal-tab--activa{color:#fff;border-bottom-color:var(--pal-gold-l);background:rgba(255,255,255,.1)}
.pal-tab__count{font-size:.7rem;background:rgba(255,255,255,.18);padding:1px 6px;border-radius:10px;font-weight:400}
.pal-menu__panel{padding:.9rem 1.1rem 1.1rem}
.pal-menu__panel-search-wrap{margin-bottom:.7rem}
.pal-menu__panel-search{width:100%;max-width:300px;padding:.42rem .7rem;border:1px solid var(--pal-border);border-radius:var(--pal-r);font-size:.84rem;box-sizing:border-box;outline-color:var(--pal-gold-l)}
.pal-menu__alfa{display:flex;flex-wrap:wrap;gap:.18rem;margin-bottom:.8rem;padding-bottom:.65rem;border-bottom:1px solid var(--pal-border)}
.pal-menu__alfa-link{display:inline-block;width:1.6rem;height:1.6rem;line-height:1.6rem;text-align:center;font-size:.76rem;font-weight:700;color:var(--pal-blue);border-radius:3px;text-decoration:none;transition:background .13s}
.pal-menu__alfa-link:hover{background:var(--pal-bg)}
.pal-menu__lista{columns:3;column-gap:1.2rem}
@media(max-width:680px){.pal-menu__lista{columns:2}}
@media(max-width:400px){.pal-menu__lista{columns:1}}
.pal-menu__grupo{break-inside:avoid;margin-bottom:.7rem}
.pal-menu__letra{display:block;font-size:.67rem;font-weight:800;color:var(--pal-gold);text-transform:uppercase;letter-spacing:.08em;margin-bottom:.18rem}
.pal-menu__items{list-style:none;margin:0;padding:0}
.pal-menu__link{display:flex;justify-content:space-between;align-items:center;gap:.35rem;padding:.26rem .28rem;font-size:.8rem;color:var(--pal-ink);text-decoration:none;border-radius:3px;transition:background .12s,color .12s}
.pal-menu__link:hover{background:var(--pal-bg);color:var(--pal-blue)}
.pal-menu__item-count{font-size:.66rem;color:var(--pal-muted);flex-shrink:0}
.pal-menu__item[hidden]{display:none!important}