*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    :root {
      --fondo:     #FAF7F2;
      --principal: #1B3A4B;
      --acento:    #E8963A;
      --tag:       #C4614A;
      --texto:     #161616;
      --borde:     #E2DDD6;
      --sombra:    0 2px 12px rgba(27,58,75,.08);
    }

    html { font-size: 16px; scroll-behavior: smooth; }
    body { background: var(--fondo); color: var(--texto); font-family: 'DM Sans', sans-serif; line-height: 1.7; }
    h1, h2, h3, h4 { font-family: 'Fraunces', serif; color: var(--principal); line-height: 1.25; }
    a { color: inherit; text-decoration: none; }
    img { max-width: 100%; height: auto; display: block; }

    .contenedor { max-width: 860px; margin: 0 auto; padding: 0 20px; }
    .contenedor-ancho { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

    /* NAV */
    header { background: var(--fondo); border-bottom: 1px solid var(--borde); position: sticky; top: 0; z-index: 100; }
    .nav-inner { display: flex; align-items: center; justify-content: space-between; max-width: 1100px; margin: 0 auto; padding: 0 20px; height: 60px; }
    .nav-logo { font-family: 'Fraunces', serif; font-size: 1.3rem; font-weight: 700; color: var(--principal); }
    .nav-links { display: flex; gap: 28px; list-style: none; }
    .nav-links a { font-size: .85rem; font-weight: 500; color: var(--principal); opacity: .8; transition: opacity .2s; }
    .nav-links a:hover { opacity: 1; }
    .nav-dropdown { position: relative; }
    .nav-dropdown-menu { display: none; position: absolute; top: 100%; left: 0; background: #fff; border: 1px solid var(--borde); border-radius: 8px; padding: 8px 0; min-width: 200px; box-shadow: var(--sombra); }
    .nav-dropdown:hover .nav-dropdown-menu { display: block; }
    .nav-dropdown-menu a { display: block; padding: 8px 16px; font-size: .85rem; }
    .nav-dropdown-menu a:hover { background: var(--fondo); }
    .nav-hamburger { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
    .nav-hamburger span { display: block; width: 22px; height: 2px; background: var(--principal); margin: 5px 0; border-radius: 2px; }
    .nav-mobile { display: none; background: #fff; border-top: 1px solid var(--borde); padding: 16px 20px; }
    .nav-mobile.abierto { display: block; }
    .nav-mobile a { display: block; padding: 10px 0; font-size: .95rem; color: var(--principal); border-bottom: 1px solid var(--borde); }
    .nav-mobile a:last-child { border-bottom: none; }
    @media (max-width: 768px) { .nav-links { display: none; } .nav-hamburger { display: block; } }

    /* BREADCRUMB */
    .breadcrumb { font-size: .8rem; color: var(--principal); opacity: .6; padding: 14px 0 0; }
    .breadcrumb a { opacity: .7; }
    .breadcrumb a:hover { opacity: 1; }
    .breadcrumb span { margin: 0 6px; }

    /* ETIQUETAS */
    .etiquetas { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0 20px; }
    .etiqueta { font-size: .72rem; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--tag); background: rgba(196,97,74,.08); border-radius: 4px; padding: 3px 9px; }

    /* LIBRO FICHA */
    .libro-ficha { display: grid; grid-template-columns: 160px 1fr; gap: 24px; background: #fff; border: 1px solid var(--borde); border-radius: 12px; padding: 24px; margin: 28px 0; }
    .libro-ficha img { border-radius: 6px; box-shadow: var(--sombra); }
    .libro-ficha-datos h3 { font-size: 1.1rem; margin-bottom: 8px; }
    .libro-ficha-datos .meta { font-size: .82rem; opacity: .65; margin-bottom: 14px; }
    .libro-ficha-datos .precio { font-size: 1.2rem; font-weight: 700; color: var(--acento); margin-bottom: 14px; }
    .btn-comprar { display: inline-block; background: var(--acento); color: #fff; padding: 11px 22px; border-radius: 8px; font-weight: 600; font-size: .88rem; }
    .btn-comprar:hover { filter: brightness(1.1); }
    @media (max-width: 520px) { .libro-ficha { grid-template-columns: 1fr; } .libro-ficha img { max-width: 140px; } }

    /* ARTÍCULO */
    .articulo-cuerpo h2 { font-size: 1.4rem; margin: 36px 0 14px; padding-top: 8px; }
    .articulo-cuerpo h3 { font-size: 1.1rem; margin: 24px 0 10px; }
    .articulo-cuerpo p { margin-bottom: 16px; font-size: .95rem; }
    .articulo-cuerpo ul, .articulo-cuerpo ol { margin: 12px 0 16px 20px; font-size: .95rem; }
    .articulo-cuerpo li { margin-bottom: 6px; }

    /* RESUMEN EJECUTIVO */
    .resumen-box { background: var(--principal); color: #fff; border-radius: 12px; padding: 24px 28px; margin: 28px 0; }
    .resumen-box .label { font-size: .72rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--acento); margin-bottom: 10px; }
    .resumen-box p { font-size: .95rem; opacity: .9; margin: 0; }

    /* PARA QUIÉN */
    .para-quien { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 28px 0; }
    .pq-bloque { background: #fff; border: 1px solid var(--borde); border-radius: 10px; padding: 20px; }
    .pq-bloque h4 { font-size: .9rem; margin-bottom: 12px; padding-bottom: 10px; border-bottom: 1px solid var(--borde); }
    .pq-bloque ul { list-style: none; padding: 0; }
    .pq-bloque li { font-size: .87rem; padding: 5px 0; padding-left: 22px; position: relative; }
    .pq-bloque li::before { position: absolute; left: 0; font-weight: 700; }
    .pq-si li::before { content: "✓"; color: var(--acento); }
    .pq-no li::before { content: "✗"; color: var(--tag); }
    @media (max-width: 560px) { .para-quien { grid-template-columns: 1fr; } }

    /* ANÁLISIS */
    .analisis-seccion { background: #fff; border: 1px solid var(--borde); border-radius: 12px; padding: 28px; margin-bottom: 20px; }
    .analisis-seccion h3 { font-size: 1.1rem; margin-bottom: 14px; }
    @media (max-width: 560px) { .analisis-seccion { padding: 20px 16px; } }

    /* LO MEJOR / PEOR */
    .mejor-peor { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 28px 0; }
    .mp-bloque { border-radius: 10px; padding: 20px; }
    .mp-mejor { background: rgba(232,150,58,.08); border: 1px solid rgba(232,150,58,.3); }
    .mp-peor { background: rgba(196,97,74,.06); border: 1px solid rgba(196,97,74,.2); }
    .mp-bloque h4 { font-size: .9rem; margin-bottom: 12px; }
    .mp-mejor h4 { color: var(--acento); }
    .mp-peor h4 { color: var(--tag); }
    .mp-bloque ul { list-style: none; padding: 0; }
    .mp-bloque li { font-size: .87rem; padding: 4px 0; padding-left: 20px; position: relative; }
    .mp-mejor li::before { content: "+"; position: absolute; left: 0; font-weight: 700; color: var(--acento); }
    .mp-peor li::before { content: "−"; position: absolute; left: 0; font-weight: 700; color: var(--tag); }
    @media (max-width: 560px) { .mejor-peor { grid-template-columns: 1fr; } }

    /* VEREDICTO */
    .veredicto-final { background: var(--principal); color: #fff; border-radius: 16px; padding: 36px; margin: 40px 0; }
    .veredicto-final h2 { color: #fff; font-size: 1.4rem; margin-bottom: 16px; }
    .veredicto-final h2 em { color: var(--acento); font-style: italic; }
    .veredicto-final p { opacity: .88; font-size: .95rem; margin-bottom: 24px; }
    .botones-compra { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 4px; }
    .btn-amazon { display: inline-flex; align-items: center; gap: 8px; background: var(--acento); color: #fff; padding: 13px 24px; border-radius: 8px; font-weight: 600; font-size: .9rem; transition: filter .2s; }
    .btn-amazon:hover { filter: brightness(1.1); }
    .aviso-afiliado { font-size: .72rem; opacity: .5; margin-top: 14px; }
    .aviso-afiliado a { text-decoration: underline; }
    @media (max-width: 600px) { .veredicto-final { padding: 24px 16px; } }

    /* FAQ */
    .faq { margin: 40px 0; }
    .faq h2 { font-size: 1.4rem; margin-bottom: 24px; }
    .faq-item { border-bottom: 1px solid var(--borde); padding: 18px 0; }
    .faq-pregunta { font-family: 'Fraunces', serif; font-size: 1rem; font-weight: 600; color: var(--principal); margin-bottom: 8px; }
    .faq-respuesta { font-size: .9rem; opacity: .85; }

    /* NEWSLETTER */
    .newsletter-cta { background: #fff; border: 1px solid var(--borde); border-radius: 16px; padding: 36px; text-align: center; margin: 48px 0; }
    .newsletter-cta h2 { font-size: 1.4rem; margin-bottom: 8px; }
    .newsletter-cta h2 em { font-style: italic; color: var(--acento); }
    .newsletter-cta p { opacity: .7; margin-bottom: 20px; font-size: .9rem; }
    .newsletter-form { display: flex; gap: 10px; max-width: 420px; margin: 0 auto 14px; }
    .newsletter-form input { flex: 1; padding: 12px 14px; border-radius: 8px; border: 1px solid var(--borde); font-family: 'DM Sans', sans-serif; font-size: .9rem; background: var(--fondo); color: var(--texto); }
    .newsletter-form button { background: var(--acento); color: #fff; border: none; border-radius: 8px; padding: 12px 20px; font-weight: 600; font-size: .9rem; cursor: pointer; font-family: 'DM Sans', sans-serif; }
    .newsletter-legal { font-size: .72rem; opacity: .5; }
    .newsletter-legal a { text-decoration: underline; }
    @media (max-width: 480px) { .newsletter-form { flex-direction: column; } }

    /* FOOTER */
    footer { background: var(--principal); color: rgba(255,255,255,.75); padding: 48px 0 24px; }
    .footer-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 32px; max-width: 1100px; margin: 0 auto; padding: 0 20px 36px; border-bottom: 1px solid rgba(255,255,255,.1); }
    .footer-col h4 { color: #fff; font-family: 'DM Sans', sans-serif; font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 14px; }
    .footer-col ul { list-style: none; }
    .footer-col li { margin-bottom: 8px; }
    .footer-col a { font-size: .85rem; opacity: .7; transition: opacity .2s; }
    .footer-col a:hover { opacity: 1; }
    .footer-bottom { max-width: 1100px; margin: 0 auto; padding: 20px 20px 0; font-size: .78rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; opacity: .5; }
    .footer-bottom a { text-decoration: underline; }
    @media (max-width: 640px) { .footer-grid { grid-template-columns: 1fr; gap: 24px; } }