.n9cat-section{background:#080807;color:#f4ead7;padding:88px 0;border-top:1px solid rgba(205,163,63,.22)}
.n9cat-wrap{width:min(1180px,92%);margin:0 auto}.n9cat-title{margin-bottom:34px}.n9cat-title h2{font-family:"Cormorant Garamond",serif;font-size:clamp(2.6rem,5vw,4rem);margin:0 0 8px}.n9cat-title p{color:#d2c2a7;font-size:1.12rem;margin:0;max-width:720px}.n9cat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.n9-book-card{display:grid;grid-template-columns:160px 1fr;gap:22px;background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.02));border:1px solid rgba(205,163,63,.28);padding:22px;box-shadow:0 18px 50px rgba(0,0,0,.25)}.n9-book-featured{grid-template-columns:260px 1fr;align-items:center;background:linear-gradient(90deg,rgba(205,163,63,.12),rgba(255,255,255,.025))}.n9-book-cover img{width:100%;height:auto;display:block;box-shadow:0 18px 50px rgba(0,0,0,.55)}.n9-book-cover-placeholder{aspect-ratio:2/3;border:1px solid rgba(205,163,63,.45);display:flex;align-items:center;justify-content:center;text-align:center;padding:16px;color:#d7b462;background:#111}.n9-book-eyebrow{font-family:Poppins,Inter,sans-serif;color:#d9ad43;text-transform:uppercase;letter-spacing:.2em;font-size:.78rem;font-weight:700;margin:0 0 10px}.n9-book-info h3{font-family:"Cormorant Garamond",serif;font-size:clamp(2rem,3vw,3.1rem);line-height:.95;margin:0 0 8px;color:#f6eddc}.n9-book-subtitle{font-family:"Cormorant Garamond",serif;font-size:1.45rem;color:#d9c8aa;margin:0 0 10px}.n9-book-author{font-size:1.05rem;color:#decfae;margin:0 0 12px}.n9-book-meta{display:flex;gap:10px;flex-wrap:wrap;color:#bfa56f;font-size:.93rem;margin:12px 0}.n9-book-meta span{border:1px solid rgba(205,163,63,.25);padding:5px 8px}.n9-format-badges{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}.n9-format-badges span{display:inline-flex;border:1px solid rgba(205,163,63,.38);color:#f3dfae;background:rgba(205,163,63,.08);font-size:.82rem;padding:5px 9px;border-radius:999px}.n9-book-actions,.n9-single-actions,.n9-buy-list{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.n9-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 17px;text-decoration:none!important;border:1px solid rgba(205,163,63,.85);font-family:Poppins,Inter,sans-serif;font-weight:700;font-size:.95rem;transition:.2s ease}.n9-btn:hover{transform:translateY(-1px);filter:brightness(1.08)}.n9-btn-gold,.n9-btn-buy{background:linear-gradient(180deg,#d8ae45,#b98624);color:#090909!important}.n9-btn-ghost{background:transparent;color:#f4ead7!important}.n9-muted{color:#c5b18d;line-height:1.55}.n9-side-label{margin:0 0 4px;color:#d9ad43;font-weight:700}.n9-format-block{margin-bottom:18px}.n9-buy-page-btn{width:100%;margin-top:14px}.n9-single-wrap{background:#080807;color:#f4ead7;min-height:70vh}.n9-single-hero{width:min(1180px,92%);margin:0 auto;display:grid;grid-template-columns:minmax(260px,430px) 1fr;gap:56px;align-items:center;padding:70px 0 56px}.n9-single-cover img{width:100%;box-shadow:0 25px 80px rgba(0,0,0,.65)}.n9-single-copy h1{font-family:"Cormorant Garamond",serif;font-size:clamp(3rem,7vw,6rem);line-height:.86;margin:0 0 12px}.n9-single-subtitle{font-family:"Cormorant Garamond",serif;color:#d9c8aa;font-size:2rem;margin:0 0 16px}.n9-single-grid{width:min(1180px,92%);margin:0 auto;display:grid;grid-template-columns:1fr 340px;gap:38px;padding:0 0 90px}.n9-single-main,.n9-side-box{background:rgba(255,255,255,.035);border:1px solid rgba(205,163,63,.22);padding:28px}.n9-single-main h2,.n9-side-box h3{font-family:"Cormorant Garamond",serif;font-size:2.2rem;line-height:1;margin:0 0 18px}.n9-single-content{color:#e6ddcb;font-size:1.12rem;line-height:1.75}.n9-dl{display:grid;grid-template-columns:110px 1fr;gap:8px 12px;margin:0}.n9-dl dt{color:#d9ad43;font-weight:700}.n9-dl dd{margin:0;color:#e8dcc5}.n9-buy-list{flex-direction:column}.n9-buy-list .n9-btn{width:100%}
.n9-buy-page .n9-buy-hero{width:min(1180px,92%);margin:0 auto;display:grid;grid-template-columns:220px 1fr;gap:34px;align-items:center;padding:70px 0 42px;border-bottom:1px solid rgba(205,163,63,.22)}.n9-buy-cover img{width:100%;box-shadow:0 20px 70px rgba(0,0,0,.65)}.n9-buy-copy h1{font-family:"Cormorant Garamond",serif;font-size:clamp(2.8rem,6vw,5.2rem);line-height:.9;margin:0 0 10px}.n9-buy-platforms{width:min(1180px,92%);margin:0 auto;padding:42px 0 90px}.n9-platform-section{margin-bottom:44px}.n9-platform-section h2{font-family:"Cormorant Garamond",serif;font-size:2.6rem;line-height:1;margin:0 0 24px}.n9-platform-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.n9-platform-card{display:grid;grid-template-columns:66px 1fr;grid-template-rows:auto auto;column-gap:16px;align-items:center;background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.025));border:1px solid rgba(205,163,63,.32);padding:18px;text-decoration:none!important;color:#f4ead7!important;min-height:110px;transition:.2s ease}.n9-platform-card:hover{transform:translateY(-2px);border-color:rgba(216,174,69,.72);background:rgba(205,163,63,.08)}.n9-platform-logo{grid-row:1/3;width:64px;height:64px;border-radius:999px;border:1px solid rgba(205,163,63,.55);display:flex;align-items:center;justify-content:center;background:linear-gradient(180deg,#d8ae45,#8f671b);color:#090909;font-weight:900;font-family:Inter,Poppins,sans-serif;font-size:.92rem;letter-spacing:.04em}.n9-platform-card strong{font-family:"Cormorant Garamond",serif;font-size:1.55rem;line-height:1.05}.n9-platform-card small{color:#cdbb98;font-size:.92rem;margin-top:4px}
@media(max-width:900px){.n9cat-grid,.n9-single-hero,.n9-single-grid,.n9-buy-page .n9-buy-hero{grid-template-columns:1fr}.n9-book-card,.n9-book-featured{grid-template-columns:120px 1fr}.n9-single-hero{padding-top:42px}.n9-single-cover{max-width:360px}.n9-single-grid{padding-bottom:60px}.n9-dl{grid-template-columns:1fr}.n9-platform-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.n9-buy-cover{max-width:260px}}
@media(max-width:640px){.n9cat-section{padding:58px 0}.n9-book-card,.n9-book-featured{grid-template-columns:1fr}.n9-book-cover{max-width:230px}.n9-btn{width:100%}.n9-book-info h3{font-size:2.25rem}.n9-single-copy h1{font-size:3.4rem}.n9-single-subtitle{font-size:1.5rem}.n9-single-main,.n9-side-box{padding:22px}.n9-platform-grid{grid-template-columns:1fr}.n9-platform-card{grid-template-columns:56px 1fr}.n9-platform-logo{width:54px;height:54px}.n9-buy-page .n9-buy-hero{padding-top:42px}}

/* v1.3.0: logos personalizados de librerías/plataformas */
.n9-platform-logo-img{
    border-radius:14px;
    background:#f5f1e8;
    padding:9px;
    overflow:hidden;
}
.n9-platform-logo-img img{
    width:100%;
    height:100%;
    object-fit:contain;
    display:block;
}
.n9-platform-logo-n9{
    padding:0;
    overflow:hidden;
    background:linear-gradient(180deg,#d8ae45,#8f671b);
}
.n9-platform-logo-n9 img{
    width:100%;
    height:100%;
    object-fit:cover;
    display:block;
}
.n9-platform-logo-text{
    text-transform:uppercase;
}

/* v1.4.0: iconos internos por defecto para librerías y plataformas */
.n9-platform-logo-default{
    border-radius:14px;
    background:#f7f1e7;
    padding:4px;
    overflow:hidden;
}
.n9-platform-logo-default img{
    width:100%;
    height:100%;
    object-fit:contain;
    display:block;
}
.n9-platform-logo-custom{
    border-radius:14px;
}

/* v1.5.0: logos de librerías visibles de verdad, no solo anagramas */
.n9-platform-card{grid-template-columns:128px 1fr!important;}
.n9-platform-logo-img,
.n9-platform-logo-default,
.n9-platform-logo-custom{
    width:112px!important;
    height:58px!important;
    border-radius:12px!important;
    background:#f7f1e7!important;
    padding:6px!important;
}
.n9-platform-logo-img img,
.n9-platform-logo-default img,
.n9-platform-logo-custom img{
    width:100%!important;
    height:100%!important;
    object-fit:contain!important;
}
.n9-platform-logo-n9,
.n9-platform-logo-text{
    width:64px!important;
    height:64px!important;
}
@media(max-width:640px){
    .n9-platform-card{grid-template-columns:112px 1fr!important;}
    .n9-platform-logo-img,
    .n9-platform-logo-default,
    .n9-platform-logo-custom{width:98px!important;height:52px!important;}
}