:root{
  --ivory:#f4f6f8;
  --warm-white:#ffffff;
  --charcoal:#0b1722;
  --charcoal-soft:#172635;
  --burgundy:#24445c;
  --burgundy-dark:#0a1a28;
  --gold:#b99452;
  --gold-dark:#7f632f;
  --gold-light:#d8bf86;
  --warm-gray:#5b6670;
  --olive:#344957;
  --line:#d6dce1;
  --line-dark:#334756;
  --success:#315b47;
  --danger:#8a3038;
  --serif:"Iowan Old Style","Palatino Linotype","Book Antiqua",Palatino,Baskerville,Georgia,serif;
  --sans:Inter,Manrope,"Source Sans 3",ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --shadow-sm:0 12px 30px rgba(8,23,34,.09);
  --shadow-lg:0 28px 70px rgba(4,16,25,.24);
  --radius:6px;
  font-family:var(--sans);
  color:var(--charcoal);
  background:var(--ivory);
  font-synthesis:none;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{margin:0;min-width:320px;background:var(--ivory);line-height:1.65;text-rendering:optimizeLegibility}
::selection{background:var(--gold);color:var(--charcoal)}
img{max-width:100%;height:auto}
a{color:inherit;text-underline-offset:.2em}
button,input,select,textarea{font:inherit}
button,a{-webkit-tap-highlight-color:transparent}
h1,h2,h3{font-family:var(--serif);font-weight:500;line-height:1.04;letter-spacing:-.025em;text-wrap:balance}
h1,h2,h3,p{margin-top:0}
h2{font-size:clamp(2.15rem,5vw,4.25rem)}
h3{font-size:clamp(1.35rem,2.3vw,1.85rem)}
p{max-width:68ch}
section{padding:clamp(4.5rem,8vw,8rem) 0}
.wrap{width:min(1240px,calc(100% - 2.5rem));margin-inline:auto}
.narrow{max-width:760px}
.center{text-align:center}
.subtle,.lede{color:var(--warm-gray)}
.lede{font-size:clamp(1.08rem,2vw,1.3rem)}
.skip{position:fixed;left:1rem;top:-5rem;z-index:200;background:var(--warm-white);border:2px solid var(--burgundy);padding:.8rem 1rem;text-decoration:none;font-weight:800}
.skip:focus{top:1rem}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

.site-header{position:sticky;top:0;z-index:60;color:var(--warm-white);background:rgba(5,13,20,.97);border-bottom:1px solid rgba(185,148,82,.38);box-shadow:0 8px 30px rgba(0,0,0,.15);backdrop-filter:blur(16px)}
.nav{min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:1.5rem}
.brand{display:inline-flex;align-items:center;gap:.8rem;text-decoration:none}
.brand-mark{width:48px;height:48px;display:grid;place-items:center;flex:none;border:1px solid var(--gold);background:#0d1b27;color:var(--gold-light);box-shadow:inset 0 0 0 1px rgba(216,191,134,.12);font-family:var(--serif);font-size:1.1rem;letter-spacing:.04em}
.brand-copy{display:grid;line-height:1.1}
.brand-copy strong{font-family:var(--serif);font-size:1.15rem;font-weight:600;letter-spacing:-.01em}
.brand-copy small{margin-top:.25rem;color:var(--gold-light);font-size:.66rem;font-weight:750;text-transform:uppercase;letter-spacing:.16em}
.nav-links{display:flex;align-items:center;gap:clamp(.7rem,1.4vw,1.35rem)}
.nav-links>a:not(.btn){font-size:.88rem;font-weight:700;text-decoration:none}
.nav-links>a:not(.btn):hover{text-decoration:underline;text-decoration-color:var(--gold);text-decoration-thickness:2px}
.menu-btn{display:none;align-items:center;gap:.65rem;border:1px solid var(--gold);background:transparent;color:var(--warm-white);min-height:46px;padding:.55rem .8rem;font-weight:800}

.btn{min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;border:1px solid transparent;border-radius:2px;padding:.82rem 1.2rem;text-decoration:none;font-size:.9rem;font-weight:800;line-height:1.2;cursor:pointer;transition:transform .18s ease,background .18s ease,color .18s ease,box-shadow .18s ease}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--gold);color:var(--charcoal);box-shadow:0 10px 24px rgba(200,164,92,.2)}
.btn-primary:hover{background:var(--gold-light)}
.btn-secondary{background:transparent;border-color:var(--charcoal);color:var(--charcoal)}
.btn-secondary:hover{background:var(--charcoal);color:var(--warm-white)}
.btn-dark{background:var(--charcoal);color:var(--warm-white)}
.btn-gold{background:var(--gold);color:var(--charcoal)}
.btn-gold:hover{background:var(--gold-light)}
.btn-outline-light{border-color:rgba(252,250,245,.55);color:var(--warm-white)}
.btn-outline-light:hover{background:var(--warm-white);color:var(--charcoal)}
.actions{display:flex;flex-wrap:wrap;gap:.8rem;margin:1.8rem 0}

.eyebrow{margin-bottom:1rem;color:var(--burgundy);font-size:.72rem;font-weight:850;text-transform:uppercase;letter-spacing:.18em}
.editorial-hero{position:relative;padding:clamp(2.6rem,5vw,4.75rem) 0 0;background:radial-gradient(circle at 12% 30%,rgba(36,68,92,.34),transparent 30rem),radial-gradient(circle at 82% 42%,rgba(185,148,82,.12),transparent 25rem),linear-gradient(112deg,#050d14 0%,#102231 48%,#050d14 100%);color:var(--warm-white);overflow:hidden;isolation:isolate}
.editorial-hero:before{content:"";position:absolute;inset:0;z-index:-1;opacity:.5;background:linear-gradient(90deg,transparent 0 72%,rgba(200,164,92,.08) 72.2%,transparent 72.7%,rgba(200,164,92,.035) 77%,transparent 78%,rgba(200,164,92,.08) 84%,transparent 84.45%),linear-gradient(180deg,transparent 0 73%,rgba(255,255,255,.025) 73.2%,transparent 73.6%)}
.editorial-hero .eyebrow{color:var(--gold)}
.editorial-hero .hero-lede{color:var(--warm-white)}
.editorial-hero .hero-support{color:#cbc4b7}
.editorial-hero .btn-secondary{border-color:rgba(252,248,239,.72);color:var(--warm-white)}
.editorial-hero .btn-secondary:hover{background:var(--warm-white);color:var(--charcoal)}
.hero-masthead{text-align:center}
.hero-manifesto{max-width:none;margin:0 0 1rem;color:var(--gold-light);font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.42em}
.hero-manifesto i{padding-inline:.5em;font-style:normal;color:var(--gold)}
.masthead-rule{display:block;width:min(440px,72vw);height:1px;margin:0 auto 1.2rem;background:linear-gradient(90deg,transparent,var(--gold) 25%,var(--gold) 47%,transparent 47% 53%,var(--gold) 53%,var(--gold) 75%,transparent);position:relative}
.masthead-rule:after{content:"◆";position:absolute;left:50%;top:50%;transform:translate(-50%,-52%);padding:.2rem .55rem;background:#0d1b27;color:var(--gold);font-size:.72rem}
.hero-masthead h1{margin:0;font-size:clamp(3.55rem,7.5vw,6.65rem);line-height:.78;text-transform:uppercase;letter-spacing:.025em;text-wrap:initial}
.hero-masthead h1 span{display:block}
.hero-masthead h1 span:first-child{color:var(--gold-light);text-shadow:0 2px 22px rgba(200,164,92,.12)}
.hero-masthead h1 span:last-child{margin-top:.18em;color:var(--warm-white)}
.hero-tagline{max-width:none;margin:1.45rem 0 0;color:var(--gold);font-size:.78rem;font-weight:800;text-transform:uppercase;letter-spacing:.2em}
.premium-hero-grid{display:grid;grid-template-columns:minmax(310px,.78fr) minmax(500px,1.22fr);align-items:center;gap:clamp(2rem,6vw,6rem);margin-top:clamp(2.2rem,5vw,4rem)}
.hero-copy h2{max-width:12ch;margin:.3rem 0 1.1rem;font-size:clamp(2.25rem,4.1vw,4rem)}
.hero-copy .actions{margin:1.7rem 0 1.1rem}
.hero-lede{font-family:var(--serif);font-size:clamp(1.25rem,2.3vw,1.65rem);line-height:1.35}
.hero-support{color:var(--warm-gray)}
.hero-proof{display:flex;align-items:center;gap:.55rem;margin:0;color:#bdb6aa;font-size:.72rem;letter-spacing:.025em}
.hero-proof span{color:var(--gold)}
.publication-stage{position:relative;min-height:500px;isolation:isolate}
.publication-stage:before{content:"";position:absolute;left:2%;right:-10%;top:8%;bottom:4%;background:radial-gradient(circle at 72% 5%,rgba(185,148,82,.12),transparent 12rem),repeating-linear-gradient(168deg,transparent 0 34px,rgba(255,255,255,.022) 35px 36px),linear-gradient(145deg,#050d14,#122b3d 58%,#07111a);border:1px solid rgba(185,148,82,.34);box-shadow:0 34px 90px rgba(0,0,0,.42);z-index:-2}
.publication-stage:after{content:"";position:absolute;left:-2%;right:-12%;bottom:1%;height:18%;z-index:-3;background:linear-gradient(145deg,#142532,#050d14);border-top:1px solid rgba(185,148,82,.2);transform:skewX(-8deg)}
.stage-ring{position:absolute;width:330px;height:330px;border:1px solid rgba(200,164,92,.5);border-radius:50%;right:-5%;top:-2%;z-index:-1}
.publication{position:absolute;margin:0;filter:drop-shadow(0 24px 28px rgba(0,0,0,.22));transition:transform .24s ease}
.publication img{display:block;width:100%;aspect-ratio:2/3;object-fit:cover}
.publication-free{width:34%;left:4%;top:25%;transform:rotate(-7deg)}
.publication-main{width:43%;left:31%;top:3%;z-index:3;transform:rotate(1deg)}
.publication-advanced{width:34%;right:1%;top:25%;transform:rotate(7deg)}
.publication-stage:hover .publication-free{transform:rotate(-8deg) translateX(-4px)}
.publication-stage:hover .publication-main{transform:rotate(0) translateY(-5px)}
.publication-stage:hover .publication-advanced{transform:rotate(8deg) translateX(4px)}
.premium-seal{position:absolute;right:-1%;top:2%;z-index:5;width:116px;height:116px;display:grid;align-content:center;justify-items:center;border:2px solid #e6c678;border-radius:50%;background:radial-gradient(circle at 35% 30%,#f4d98f,#b9862f 68%,#6e4815);color:#151109;box-shadow:0 12px 30px rgba(0,0,0,.34),inset 0 0 0 4px #9e6f25,inset 0 0 0 6px #e9cb7c;text-transform:uppercase;transform:rotate(4deg)}
.premium-seal small{font-size:.53rem;font-weight:800;letter-spacing:.08em}
.premium-seal strong{font-family:var(--serif);font-size:1.05rem;letter-spacing:.08em}
.benefit-ribbon{display:grid;grid-template-columns:repeat(4,1fr);margin-top:clamp(2rem,5vw,4rem);border-block:1px solid rgba(200,164,92,.42);background:rgba(10,5,3,.72)}
.benefit-ribbon article{display:flex;align-items:center;gap:.9rem;padding:1.15rem}
.benefit-ribbon article+article{border-left:1px solid rgba(200,164,92,.3)}
.benefit-ribbon article>span{width:44px;height:44px;display:grid;place-items:center;flex:none;border:1px solid var(--gold);border-radius:50%;color:var(--gold-light);font-family:var(--serif);font-size:1.35rem}
.benefit-ribbon article div{display:grid;gap:.18rem}
.benefit-ribbon strong{color:var(--warm-white);font-size:.72rem;text-transform:uppercase;letter-spacing:.08em}
.benefit-ribbon small{color:#bdb5a8;font-size:.67rem;line-height:1.35}
.trust-strip{margin-top:3rem;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust-strip span{padding:1rem;text-align:center;color:var(--warm-gray);font-size:.78rem;font-weight:750;text-transform:uppercase;letter-spacing:.08em}
.trust-strip span+span{border-left:1px solid var(--line)}
.editorial-hero .trust-strip{border-color:rgba(200,164,92,.32)}
.editorial-hero .trust-strip span{color:#d2cabd}
.editorial-hero .trust-strip span+span{border-color:rgba(200,164,92,.25)}

.section-head{max-width:820px;margin-bottom:3rem}
.section-head h2{margin:.25rem 0 1rem}
.section-head>p:last-child{color:var(--warm-gray);font-size:1.08rem}
.split-head{max-width:none;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(280px,.65fr);align-items:end;gap:3rem}
.route-section{background:var(--warm-white)}
.product-route{display:grid;grid-template-columns:repeat(3,1fr);gap:1.3rem;margin:0;padding:0;list-style:none}
.route-section .product-route:has(> :nth-child(4)){grid-template-columns:repeat(2,1fr)}
.product-card{position:relative;display:flex;flex-direction:column;border:1px solid var(--line);background:var(--ivory);min-width:0}
.product-featured{background:linear-gradient(155deg,#081722,#17364d);color:var(--warm-white);border-color:rgba(185,148,82,.55);box-shadow:var(--shadow-lg);transform:translateY(-1rem)}
.route-number{position:absolute;right:1rem;top:1rem;z-index:2;font-family:var(--serif);font-size:2.4rem;color:rgba(252,250,245,.78);text-shadow:0 1px 12px rgba(0,0,0,.3)}
.card-cover{height:285px;overflow:hidden;background:#e8edf1}
.card-cover img{display:block;width:100%;height:100%;object-fit:cover;object-position:center top;transition:transform .35s ease}
.product-card:hover .card-cover img{transform:scale(1.02)}
.product-content{display:flex;flex:1;flex-direction:column;padding:1.55rem}
.product-content h3{margin:.35rem 0 1rem}
.product-content h2{margin:.35rem 0 1rem;font-size:clamp(1.55rem,2.6vw,2.05rem)}
.product-content>p:not(.price,.badge,.kicker){color:var(--warm-gray)}
.product-featured .product-content>p:not(.price,.badge,.kicker),.product-featured .ticks li{color:#cfc7bb}
.product-content .btn{margin-top:auto}
.kicker{margin-bottom:.25rem;color:var(--burgundy);font-size:.7rem;font-weight:850;text-transform:uppercase;letter-spacing:.15em}
.product-featured .kicker{color:var(--gold)}
.badge{align-self:flex-start;margin:0 0 .7rem;padding:.28rem .6rem;border:1px solid var(--gold-dark);color:var(--gold-dark);font-size:.67rem;font-weight:850;text-transform:uppercase;letter-spacing:.13em}
.product-featured .badge{border-color:var(--gold);color:var(--gold)}
.price{margin:1rem 0 1.2rem;color:var(--burgundy);font-family:var(--serif);font-size:1.65rem;font-weight:600}
.product-featured .price{color:var(--gold-light)}
.currency-note{margin:1.5rem auto 0;color:var(--warm-gray);font-size:.78rem;text-align:center}
.ticks,.crosses,.plain-list{padding:0;list-style:none}
.ticks li,.crosses li,.plain-list li{position:relative;margin:.58rem 0;padding-left:1.45rem}
.ticks li:before{content:"";position:absolute;left:0;top:.64em;width:8px;height:8px;border-radius:50%;background:var(--gold)}
.crosses li:before{content:"×";position:absolute;left:0;color:var(--danger);font-weight:900}

.featured-guide{background:radial-gradient(circle at 18% 30%,rgba(185,148,82,.11),transparent 26rem),linear-gradient(145deg,#050d14,#0a1a28 58%,#102433);color:var(--warm-white)}
.featured-grid{display:grid;grid-template-columns:minmax(320px,.82fr) minmax(0,1fr);align-items:center;gap:clamp(3rem,8vw,8rem)}
.featured-visual{position:relative;min-height:620px;display:grid;place-items:center}
.featured-visual:before{content:"";position:absolute;inset:7% 1% 1% 7%;border:1px solid rgba(195,161,106,.32)}
.featured-visual img{position:relative;z-index:2;width:min(70%,390px);box-shadow:var(--shadow-lg);transform:rotate(-2deg)}
.gold-frame{position:absolute;width:260px;height:260px;border:1px solid var(--gold);border-radius:50%;left:-3%;top:0}
.featured-copy .eyebrow{color:var(--gold)}
.featured-copy h2{max-width:12ch;margin:.35rem 0 1.3rem}
.featured-copy .lede{color:#d3ccc0}
.feature-facts{display:grid;grid-template-columns:repeat(3,1fr);margin:2rem 0;border-block:1px solid var(--line-dark)}
.feature-facts div{padding:1rem 0}
.feature-facts div+div{padding-left:1rem;border-left:1px solid var(--line-dark)}
.feature-facts dt{color:#9f988e;font-size:.68rem;text-transform:uppercase;letter-spacing:.14em}
.feature-facts dd{margin:.2rem 0 0;font-family:var(--serif);font-size:1.2rem}
.ticks-light li{color:#d3ccc0}

.buffett-section{background:var(--warm-white)}
.buffett-lead{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(320px,.85fr);align-items:stretch;border:1px solid var(--line);background:var(--charcoal)}
.buffett-portrait{margin:0;background:#020406}
.buffett-portrait img{display:block;width:100%;height:100%;min-height:430px;object-fit:cover}
.buffett-portrait figcaption{padding:.8rem 1rem;background:var(--charcoal);color:#c3ccd3;font-size:.72rem;line-height:1.5}
.buffett-portrait figcaption a{color:var(--gold-light)}
.buffett-intro{display:flex;flex-direction:column;justify-content:center;padding:clamp(2rem,5vw,4rem);color:var(--warm-white);border-left:1px solid rgba(185,148,82,.42)}
.buffett-intro .eyebrow{color:var(--gold)}
.buffett-intro h3{margin:.2rem 0 1.4rem;font-size:clamp(2rem,3.5vw,3.25rem)}
.buffett-intro>p:not(.eyebrow){color:#d7dee3}
.buffett-disclaimer{margin-top:1.5rem;padding-top:1.2rem;border-top:1px solid rgba(185,148,82,.42);font-size:.84rem}
.buffett-quotes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;margin-top:1rem}
.buffett-quotes blockquote{margin:0;padding:clamp(1.5rem,3vw,2.4rem);border:1px solid var(--line);border-left:4px solid var(--gold);background:#f4f6f8}
.buffett-quotes blockquote>span{display:block;margin-bottom:.9rem;color:var(--gold-dark);font-size:.68rem;font-weight:850;text-transform:uppercase;letter-spacing:.15em}
.buffett-quotes blockquote>p{margin:0;color:var(--charcoal);font-family:var(--serif);font-size:clamp(1.3rem,2vw,1.7rem);font-style:italic;line-height:1.35}
.buffett-quotes footer{margin-top:1.2rem;color:var(--warm-gray);font-size:.76rem;line-height:1.5}
.buffett-quotes footer a{font-weight:750}
.buffett-source-note{margin:1rem 0 0;color:var(--warm-gray);font-size:.76rem}
.buffett-action{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;margin-top:2rem;padding:1.3rem 1.5rem;border-top:1px solid var(--charcoal);border-bottom:1px solid var(--charcoal)}
.buffett-action p{margin:0}
.buffett-action .btn{flex:none}

.preview-section{background:#eef1f4}
.preview-shelf{display:grid;grid-template-columns:repeat(3,1fr);align-items:end;gap:clamp(1rem,4vw,4rem);padding:clamp(2rem,5vw,5rem);background:var(--warm-white);border:1px solid var(--line)}
.preview-shelf article{margin:0}
.preview-shelf img{display:block;width:100%;max-height:490px;object-fit:contain;filter:drop-shadow(0 18px 16px rgba(23,23,21,.16))}
.preview-shelf .preview-featured{transform:translateY(-1rem)}
.preview-shelf p{display:grid;gap:.2rem;margin:1.2rem 0 0;text-align:center}
.preview-shelf span{color:var(--warm-gray);font-size:.78rem}
.sample-note{margin:1.2rem 0 0;padding:1rem 1.2rem;border-left:3px solid var(--gold);background:rgba(252,250,245,.7);color:var(--warm-gray);font-size:.88rem}

/* Muestra EPUB: patrón de lector digital inspirado en tiendas de eBooks */
.ebook-sample-section{background:linear-gradient(180deg,#eef2f5,#f8f6f0)}
.ebook-sample-intro{max-width:760px;margin-bottom:2rem}
.ebook-reader{max-width:940px;margin-inline:auto;padding:clamp(.7rem,2vw,1.2rem);border-radius:28px;background:linear-gradient(145deg,#07131e,#183247);box-shadow:0 30px 80px rgba(4,14,22,.28)}
.ebook-reader-bar{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:48px;padding:.35rem .6rem .9rem;color:#d9e0e5;font-size:.72rem;letter-spacing:.06em}
.ebook-reader-bar strong{color:var(--gold-light);font-family:var(--sans);font-size:.72rem;text-transform:uppercase;letter-spacing:.12em}
.ebook-reader-screen{min-height:650px;padding:clamp(1.5rem,4vw,3.8rem);overflow:hidden;border-radius:8px;background:#fffdf8;color:#232321;box-shadow:inset 0 0 0 1px rgba(56,53,47,.14)}
.ebook-reader-page[hidden]{display:none}
.ebook-reader-page{max-width:660px;margin:auto;animation:reader-page-in .22s ease}
.ebook-reader-page .reader-chapter{margin:0 0 .8rem;color:var(--gold-dark);font-size:.68rem;font-weight:850;text-transform:uppercase;letter-spacing:.14em}
.ebook-reader-page h3{margin:.2rem 0 1rem;font-family:var(--serif);font-size:clamp(1.8rem,4vw,2.75rem);line-height:1.06}
.ebook-reader-page h4{margin:1.35rem 0 .5rem;font-size:1.05rem}
.ebook-reader-page p,.ebook-reader-page li{font-family:Georgia,serif;font-size:clamp(.95rem,1.7vw,1.08rem);line-height:1.72}
.ebook-reader-page ul,.ebook-reader-page ol{padding-left:1.25rem}
.ebook-reader-page li+li{margin-top:.35rem}
.ebook-reader-figure{display:grid;grid-template-columns:minmax(0,1fr);place-items:center;margin:1.2rem auto 0}
.ebook-reader-figure img{display:block;width:min(100%,410px);height:auto;mix-blend-mode:multiply}
.ebook-reader-figure figcaption{max-width:500px;margin-top:.6rem;color:#66717a;font-size:.7rem;line-height:1.4;text-align:center}
.ebook-reader-controls{display:grid;grid-template-columns:48px 1fr 48px;align-items:center;gap:.8rem;padding:.9rem .25rem .1rem;color:#fff}
.ebook-reader-controls>button{width:44px;height:44px;border:1px solid rgba(255,255,255,.32);border-radius:50%;background:transparent;color:#fff;font-size:1.3rem;cursor:pointer}
.ebook-reader-controls>button:hover{border-color:var(--gold);color:var(--gold-light)}
.ebook-reader-progress{display:flex;align-items:center;justify-content:center;gap:.65rem}
.ebook-reader-progress button{width:9px;height:9px;padding:0;border:0;border-radius:50%;background:#6f818e;cursor:pointer}
.ebook-reader-progress button[aria-current="page"]{background:var(--gold);box-shadow:0 0 0 4px rgba(185,148,82,.18)}
.ebook-reader-progress span{min-width:90px;color:#d7dee3;font-size:.72rem;text-align:center}
.ebook-sample-note{max-width:940px;margin:1rem auto 0;color:#65727b;font-size:.8rem;text-align:center}
@keyframes reader-page-in{from{opacity:.35;transform:translateX(8px)}to{opacity:1;transform:none}}

.nav-cart{display:inline-flex;align-items:center;justify-content:center;gap:.35rem;min-height:42px;padding:.55rem .85rem;border:1px solid var(--gold);background:transparent;color:inherit;font:inherit;font-size:.78rem;font-weight:850;cursor:pointer}
.nav-cart [data-cart-count]{display:inline-grid;place-items:center;min-width:22px;height:22px;border-radius:50%;background:var(--gold);color:#07131e;font-size:.7rem}
.cart-backdrop{border:0;cursor:pointer}
.cart-items{flex:1;overflow:auto;padding:1.25rem}
.cart-item{display:grid;grid-template-columns:1fr auto;gap:.4rem 1rem;padding:1rem 0;border-bottom:1px solid var(--line)}
.cart-item strong{font-family:var(--serif);font-size:1.1rem}
.cart-item span{font-weight:800}
.cart-item button{grid-column:1/-1;justify-self:start;padding:0;border:0;background:transparent;color:var(--burgundy);font-weight:800;cursor:pointer}
.cart-empty{color:var(--warm-gray)}
.cart-panel>footer{display:grid;gap:1rem;padding:1.25rem;border-top:1px solid var(--line)}
.cart-panel>footer>div{display:flex;align-items:center;justify-content:space-between;gap:1rem}
.cart-panel>footer small{color:var(--warm-gray);text-align:center}
.sample-gallery{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(1.25rem,3vw,2rem);margin-top:1.5rem}
.sample-gallery figure{margin:0;padding:1rem;background:var(--warm-white);border:1px solid var(--line);box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease}
.sample-gallery figure:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.sample-gallery img{width:100%;height:auto;aspect-ratio:210/297;object-fit:cover;object-position:top;border:1px solid var(--line)}
.sample-gallery img[role="button"]{cursor:zoom-in}
.sample-gallery img[role="button"]:focus-visible{outline:4px solid var(--gold);outline-offset:4px}
.sample-gallery figcaption{margin-top:.8rem;color:var(--charcoal);font-size:.95rem;line-height:1.45;text-align:center}
.sample-lightbox{width:min(96vw,1180px);max-width:96vw;max-height:96vh;margin:auto;padding:0;overflow:auto;border:1px solid var(--gold);background:#07131e;color:#fff;box-shadow:0 28px 90px rgba(0,0,0,.55)}
.sample-lightbox::backdrop{background:rgba(2,8,13,.88);backdrop-filter:blur(5px)}
.sample-lightbox header{position:sticky;top:0;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.8rem 1rem;background:rgba(7,19,30,.96);border-bottom:1px solid rgba(255,255,255,.2)}
.sample-lightbox header strong{font-size:1rem}
.sample-lightbox-close{min-width:48px;min-height:48px;border:1px solid var(--gold);background:transparent;color:#fff;font-size:1.6rem;line-height:1;cursor:pointer}
.sample-lightbox img{display:block;width:min(1117px,92vw);max-width:none;height:auto;margin:0 auto;background:#fff}
.sample-lightbox p{margin:0;padding:1rem;color:#fff;font-size:1rem;text-align:center}
body.sample-lightbox-open{overflow:hidden}
.verification-status{margin:1rem 0;padding:1rem 1.2rem;border:2px solid #9c2f2f;background:#fff3f1;color:#671f1f}

.method-section{background:var(--ivory)}
.method-grid{display:grid;grid-template-columns:repeat(3,1fr);border-block:1px solid var(--charcoal)}
.method-grid article{padding:2rem clamp(1rem,3vw,3rem)}
.method-grid article+article{border-left:1px solid var(--line)}
.method-grid span{font-family:var(--serif);font-size:2rem;color:var(--gold-dark)}
.method-grid h3{margin:1.5rem 0 .65rem}
.method-grid p{color:var(--warm-gray)}
.about-section{background:radial-gradient(circle at 82% 22%,rgba(185,148,82,.12),transparent 24rem),linear-gradient(135deg,#0b1722,#24445c);color:var(--warm-white)}
.about-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(2rem,7vw,7rem)}
.about-section .eyebrow{color:var(--gold-light)}
.about-section .lede{color:#eee6de}
.founder-grid,.founder-profile-grid{display:grid;grid-template-columns:minmax(300px,.82fr) minmax(0,1.18fr);align-items:center;gap:clamp(2rem,7vw,7rem)}
.founder-card{position:relative;overflow:hidden;padding:clamp(1.7rem,4vw,3rem);border:1px solid rgba(219,185,111,.38);background:linear-gradient(145deg,rgba(255,255,255,.08),rgba(255,255,255,.025));box-shadow:0 24px 70px rgba(0,0,0,.2)}
.founder-card:after{position:absolute;right:-4rem;bottom:-5rem;width:13rem;height:13rem;border:1px solid rgba(219,185,111,.18);border-radius:50%;content:""}
.founder-seal{display:grid;width:92px;height:92px;margin-bottom:1.5rem;place-items:center;border:1px solid var(--gold-light);border-radius:50%;background:radial-gradient(circle at 34% 30%,#f3dc9d,#9f712d 72%);box-shadow:0 0 0 7px rgba(200,164,92,.11)}
.founder-seal span{color:#14202a;font-family:var(--serif);font-size:1.65rem;font-weight:800;letter-spacing:.08em}
.founder-card h2{margin:.2rem 0 .55rem}
.founder-role{margin:0 0 1.7rem;color:#d9d2c8;font-weight:700}
.founder-facts{display:grid;grid-template-columns:repeat(3,1fr);margin:0;border-top:1px solid rgba(219,185,111,.3)}
.founder-facts div{padding:1rem .75rem 0}
.founder-facts div:first-child{padding-left:0}
.founder-facts dt{color:var(--gold-light);font-size:.66rem;font-weight:850;letter-spacing:.1em;text-transform:uppercase}
.founder-facts dd{margin:.35rem 0 0;color:var(--warm-white);font-size:.86rem;font-weight:750}
.founder-copy h2,.founder-story h2{margin:.2rem 0 1.2rem}
.founder-copy>p:not(.eyebrow),.founder-story>p:not(.eyebrow){color:#e4ded5}
.founder-copy strong{color:var(--warm-white)}
.profile-training{margin:1.35rem 0;padding:1.1rem 1.25rem;border:1px solid rgba(219,185,111,.34);background:rgba(255,255,255,.055)}
.profile-training p{margin:0 0 .7rem;color:var(--warm-white);font-weight:800}
.profile-training ul{margin:0;padding-left:1.2rem;color:#e4ded5}
.profile-training li{margin:.38rem 0;line-height:1.45}
.risk-statement{margin:1.7rem 0;padding:1.2rem 1.35rem;border-left:3px solid var(--gold-light);background:rgba(255,255,255,.07);color:var(--warm-white);font-family:var(--serif);font-size:1.15rem;line-height:1.55}
.founder-profile-section{background:linear-gradient(180deg,#eef1f4,var(--warm-white))}
.founder-card-light{border-color:var(--line);background:linear-gradient(145deg,#0b1722,#24445c);color:var(--warm-white)}
.founder-story>p:not(.eyebrow){color:var(--warm-gray)}
.founder-story strong{color:var(--charcoal)}
.risk-statement-dark{border-color:var(--gold-dark);background:#edf1f4;color:var(--charcoal)}
.newsletter-section{position:relative;overflow:hidden;background:radial-gradient(circle at 10% 15%,rgba(185,148,82,.18),transparent 22rem),radial-gradient(circle at 88% 82%,rgba(36,68,92,.55),transparent 26rem),linear-gradient(145deg,#050d14,#0a1a28);color:var(--warm-white)}
.newsletter-section:before,.newsletter-section:after{position:absolute;border:1px solid rgba(216,191,134,.14);border-radius:50%;content:"";pointer-events:none}
.newsletter-section:before{top:-13rem;right:-10rem;width:30rem;height:30rem}
.newsletter-section:after{bottom:-18rem;left:28%;width:34rem;height:34rem}
.newsletter-shell{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,.9fr) minmax(380px,.72fr);align-items:center;gap:clamp(2.5rem,8vw,7rem)}
.newsletter-copy .eyebrow{color:var(--gold-light)}
.newsletter-copy h2{max-width:11ch;margin:.3rem 0 1.3rem}
.newsletter-copy .lede{color:#d9e0e5}
.newsletter-benefits{display:grid;gap:.85rem;margin:2rem 0 0;padding:0;list-style:none}
.newsletter-benefits li{display:flex;align-items:center;gap:.9rem;color:#d9e0e5}
.newsletter-benefits span{display:grid;flex:0 0 2.4rem;width:2.4rem;height:2.4rem;place-items:center;border:1px solid rgba(216,191,134,.55);border-radius:50%;color:var(--gold-light);font-size:.68rem;font-weight:850;letter-spacing:.08em}
.newsletter-panel{padding:clamp(1rem,2vw,1.4rem);border:1px solid rgba(216,191,134,.3);background:rgba(255,255,255,.05);box-shadow:var(--shadow-lg);backdrop-filter:blur(10px)}
.newsletter-form{position:relative;padding:clamp(1.4rem,4vw,2.2rem);background:var(--warm-white);color:var(--charcoal)}
.newsletter-form label:not(.checkbox){margin-top:0;color:var(--charcoal);font-size:.86rem}
.newsletter-form label span{color:var(--warm-gray);font-weight:550}
.newsletter-form>div+div{margin-top:1rem}
.newsletter-form input:not([type="checkbox"]){min-height:52px;border-color:#8b969f;background:#f9fafb}
.newsletter-form input:not([type="checkbox"]):focus{border-color:var(--gold-dark);box-shadow:0 0 0 3px rgba(185,148,82,.18);outline:none}
.newsletter-consent{margin:1.25rem 0 .8rem;color:#3f4b55;font-size:.9rem;line-height:1.5}
.newsletter-consent input{flex:0 0 auto;width:1.15rem;height:1.15rem;margin-top:.2rem;accent-color:var(--burgundy)}
.newsletter-consent a,.newsletter-legal a{color:var(--burgundy);font-weight:800}
.newsletter-legal{margin:0 0 1.2rem;color:var(--warm-gray);font-size:.78rem;line-height:1.5}
.newsletter-submit{width:100%;justify-content:center;min-height:52px}
.newsletter-status{margin:.9rem 0 0}
.form-status[data-state="success"]{color:var(--success)}
.form-status[data-state="error"]{color:var(--danger)}
.form-status[data-state="loading"]{color:var(--burgundy)}
.newsletter-honeypot{position:absolute!important;left:-10000px!important;width:1px!important;height:1px!important;overflow:hidden!important}
.text-link{display:inline-flex;align-items:center;gap:.5rem;color:inherit;font-weight:800;text-decoration:none;border-bottom:1px solid currentColor}
.text-link:hover{color:var(--burgundy)}
.about-section .text-link{color:var(--gold-light)}

.resources-section{background:var(--warm-white)}
.resource-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem}
.resource-card{background:var(--ivory);border:1px solid var(--line)}
.resource-card>div:last-child{padding:1.4rem}
.resource-visual{height:190px;display:flex;align-items:flex-end;padding:1.2rem;overflow:hidden}
.resource-visual span{font-family:var(--serif);font-size:5.5rem;line-height:.75;color:rgba(252,250,245,.82)}
.resource-burgundy{background:var(--burgundy)}
.resource-charcoal{background:var(--charcoal)}
.resource-olive{background:var(--olive)}
.resource-meta{display:flex;justify-content:space-between;gap:1rem;color:var(--warm-gray);font-size:.7rem;text-transform:uppercase;letter-spacing:.08em}
.resource-card h3{min-height:2.2em;margin:.75rem 0}
.resource-card p:not(.resource-meta){color:var(--warm-gray)}
.section-action{margin-top:2rem;text-align:center}

.faq-section{background:var(--ivory)}
.faq-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:clamp(2rem,7vw,7rem)}
.faq-intro{position:sticky;top:110px;align-self:start}
.faq details{border-top:1px solid var(--line);padding:1.2rem 0}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{display:flex;justify-content:space-between;gap:1rem;cursor:pointer;font-family:var(--serif);font-size:1.2rem;font-weight:600;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";color:var(--burgundy);font-family:var(--sans)}
.faq details[open] summary:after{content:"–"}
.faq details p{margin:.8rem 2rem 0 0;color:var(--warm-gray)}
.final-cta{background:radial-gradient(circle at 50% 10%,rgba(185,148,82,.14),transparent 24rem),linear-gradient(145deg,#050d14,#0a1a28);color:var(--warm-white);text-align:center}
.final-cta-inner{display:grid;justify-items:center}
.final-cta .eyebrow{color:var(--gold)}
.final-cta h2{margin:.2rem 0 1rem}
.final-cta p{color:#d0c9bd}

.site-footer{background:#050d14;color:#c2cbd2;padding:4.5rem 0 2rem;border-top:1px solid rgba(185,148,82,.32)}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:clamp(1.5rem,4vw,4rem)}
.site-footer .brand{color:var(--warm-white)}
.site-footer .brand-copy small{color:var(--gold-light)}
.footer-brand p{margin-top:1.2rem}
.footer-top>div:not(.footer-brand){display:flex;flex-direction:column;gap:.55rem}
.footer-top strong{margin-bottom:.4rem;color:var(--gold-light);font-size:.72rem;text-transform:uppercase;letter-spacing:.14em}
.footer-top a{font-size:.87rem;text-decoration:none}
.footer-top a:hover{text-decoration:underline}
.footer-button{align-self:flex-start;border:0;background:none;color:#c5beb3;padding:0;text-decoration:underline;cursor:pointer}
.footer-bottom{display:flex;justify-content:space-between;gap:2rem;margin-top:3rem;padding-top:1.5rem;border-top:1px solid #2c2b29;font-size:.73rem}
.footer-bottom p:first-child{max-width:80ch}

.page-hero,.product-hero{padding:clamp(4rem,8vw,7rem) 0;background:radial-gradient(circle at 82% 18%,rgba(185,148,82,.14),transparent 24rem),linear-gradient(135deg,#08141e,#17364d 62%,#050d14);color:var(--warm-white)}
.page-hero h1,.product-hero h1{max-width:17ch;margin:.3rem 0 1rem;font-size:clamp(2.8rem,6vw,5.3rem)}
.page-hero p,.product-hero p{color:#d2cbc0}
.page-hero .eyebrow,.product-hero .eyebrow{color:var(--gold)}
.product-hero .price{color:var(--gold-light)}
.page-hero .btn-secondary,.product-hero .btn-secondary{border-color:rgba(252,248,239,.72);color:var(--warm-white)}
.page-hero .btn-secondary:hover,.product-hero .btn-secondary:hover{background:var(--warm-white);color:var(--charcoal)}
.micro{color:var(--warm-gray);font-size:.78rem}
.product-hero .micro{color:#aaa297}
.breadcrumbs{padding:1rem 0;color:var(--warm-gray);font-size:.82rem}
.breadcrumbs ol{display:flex;gap:.45rem;flex-wrap:wrap;margin:0;padding:0;list-style:none}
.breadcrumbs li+li:before{content:"/";margin-right:.45rem;color:#aaa297}
.card{background:var(--warm-white);border:1px solid var(--line);padding:1.5rem;box-shadow:var(--shadow-sm)}
.grid-2,.grid-3{display:grid;gap:1.25rem}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.product-hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(280px,.65fr);align-items:center;gap:clamp(2.5rem,7vw,6rem)}
.product-cover{display:block;width:min(100%,430px);margin:auto;box-shadow:var(--shadow-lg)}
.sales-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(280px,.75fr);gap:2rem;align-items:start}
.buy-panel{position:sticky;top:105px}
.fact-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.7rem;margin:1.4rem 0}
.fact{padding:.9rem 1rem;background:var(--ivory);border:1px solid var(--line)}
.fact strong{display:block;color:var(--warm-gray);font-size:.68rem;text-transform:uppercase;letter-spacing:.1em}
.prose{max-width:780px}
.prose h2{margin-top:2.6rem}
.notice,.inline-cta{margin:1.5rem 0;padding:1rem 1.2rem;border-left:3px solid var(--gold);background:var(--warm-white)}
.section-soft{background:#eef1f4}
.section-dark,.principles{background:linear-gradient(145deg,#050d14,#0a1a28);color:var(--warm-white)}
.section-dark p,.principles p{color:#d2cbc0}
.comparison{width:100%;border-collapse:collapse;background:var(--warm-white);border:1px solid var(--line)}
.comparison th,.comparison td{text-align:left;padding:1rem;border-bottom:1px solid var(--line);vertical-align:top}
.comparison th{background:var(--charcoal);color:var(--warm-white)}
.toc{padding:1rem 1.2rem;background:#eef2f5;border-left:3px solid var(--gold)}
.post-meta{color:var(--warm-gray)}
.legal-meta{display:grid;gap:.75rem;padding:1rem 1.2rem;background:var(--warm-white);border:1px solid var(--line)}
.legal-meta dt{font-weight:850}.legal-meta dd{margin:0;color:var(--warm-gray)}
label{display:block;margin:.7rem 0 .3rem;font-weight:750}
input,select,textarea{width:100%;padding:.85rem;border:1px solid #aaa296;border-radius:0;background:var(--warm-white);color:var(--charcoal)}
.checkbox{display:flex;align-items:flex-start;gap:.6rem;color:var(--warm-gray);font-size:.83rem;font-weight:500}
.checkbox input{width:auto;margin-top:.3rem}
.form-status{min-height:1.4rem;font-size:.9rem;font-weight:700}
.form-error{color:var(--danger)}
.result{padding:1.5rem;background:var(--warm-white);border:1px solid var(--line)}
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.metric{padding:1rem;background:#eef2f5}
.metric strong{display:block;font-family:var(--serif);font-size:1.5rem}
.chart{width:100%;height:280px;margin-top:1.5rem}
.cookie-banner{position:fixed;left:1rem;right:1rem;bottom:1rem;z-index:100;width:min(880px,calc(100% - 2rem));margin:auto;padding:1.2rem;background:var(--warm-white);border:1px solid var(--charcoal);box-shadow:var(--shadow-lg)}
.cookie-banner[hidden]{display:none}
.cookie-banner p{margin:.35rem 0 1rem;color:var(--warm-gray)}
.cookie-actions{display:flex;align-items:center;flex-wrap:wrap;gap:.7rem}
.cookie-actions .btn{min-width:8.5rem;background:var(--warm-white);border-color:var(--charcoal);color:var(--charcoal)}
.cookie-actions .btn:hover{background:var(--charcoal);color:var(--warm-white)}
.cookie-settings{position:fixed;left:50%;top:50%;z-index:110;width:min(560px,calc(100% - 2rem));padding:1.4rem;transform:translate(-50%,-50%);background:var(--warm-white);border:2px solid var(--charcoal);box-shadow:var(--shadow-lg)}
.cookie-settings[hidden]{display:none}
.cookie-settings p{color:var(--warm-gray)}
.cookie-settings .checkbox{margin:1rem 0}
.cookie-preferences-floating{position:fixed;right:1rem;bottom:1rem;z-index:90;padding:.55rem .75rem;border:1px solid var(--charcoal);border-radius:999px;background:var(--warm-white);color:var(--charcoal);font:inherit;font-size:.76rem;cursor:pointer;box-shadow:var(--shadow)}
.cookie-banner:not([hidden])~.cookie-preferences-floating,.cookie-settings:not([hidden])~.cookie-preferences-floating{display:none}
.mobile-cta{display:none}

/* Presentación visual en azul noche, blanco y oro mate. */
img[src*="/assets/covers/"]:not([src*="-gold-burgundy.png"]){filter:grayscale(1) sepia(.28) saturate(1.05) contrast(1.08) brightness(.94) drop-shadow(0 16px 18px rgba(20,7,3,.16))}
img[src*="-gold-burgundy.png"]{filter:drop-shadow(0 16px 18px rgba(20,7,3,.2))}
.editorial-hero img[src*="-gold-burgundy.png"]{filter:drop-shadow(0 18px 22px rgba(20,7,3,.3))}

:focus-visible{outline:3px solid var(--gold);outline-offset:4px}
button:disabled{cursor:not-allowed;opacity:.65}

@media(max-width:1040px){
  .nav-links{gap:.75rem}.nav-links>a:not(.btn){font-size:.8rem}.nav-links .btn{padding:.7rem .85rem}
  .premium-hero-grid{grid-template-columns:minmax(280px,.8fr) minmax(420px,1.2fr)}
  .publication-stage{min-height:450px}
  .benefit-ribbon article{padding:1rem .75rem}.benefit-ribbon article>span{width:38px;height:38px}
  .product-route{grid-template-columns:1fr 1fr}.product-card:last-child{grid-column:1/-1;display:grid;grid-template-columns:.8fr 1.2fr}.product-card:last-child .card-cover{height:100%}
  .footer-top{grid-template-columns:1.4fr 1fr 1fr}
  .footer-top>div:last-child{grid-column:2}
}

@media(max-width:980px){
  html{scroll-padding-top:74px}
  .wrap{width:min(100% - 1.5rem,1240px)}
  .nav{min-height:72px}.brand-mark{width:42px;height:42px}.brand-copy small{display:none}
  .menu-btn{display:flex}
  .nav-links{display:none;position:absolute;left:0;right:0;top:72px;max-height:calc(100vh - 72px);overflow:auto;padding:1rem;background:#160b08;border-bottom:1px solid rgba(200,164,92,.35);box-shadow:var(--shadow-sm);flex-direction:column;align-items:stretch}
  .nav-links.open{display:flex}.nav-links>a{min-height:46px;display:flex;align-items:center;padding:.45rem .2rem}.nav-links .btn{justify-content:center;padding:.8rem 1rem}
  .premium-hero-grid,.featured-grid,.about-grid,.founder-grid,.founder-profile-grid,.newsletter-shell,.faq-layout,.product-hero-grid,.sales-grid,.split-head{grid-template-columns:1fr}
  .buffett-lead{grid-template-columns:1fr}
  .buffett-intro{border-left:0;border-top:1px solid rgba(185,148,82,.42)}
  .buffett-quotes{grid-template-columns:1fr}
  .hero-copy{text-align:center}.hero-copy h2,.hero-lede,.hero-proof{margin-inline:auto}.hero-copy .actions{justify-content:center}
  .publication-stage{min-height:520px;max-width:560px;width:100%;margin:auto}
  .benefit-ribbon{grid-template-columns:1fr 1fr}.benefit-ribbon article:nth-child(3){border-left:0;border-top:1px solid rgba(200,164,92,.3)}.benefit-ribbon article:nth-child(4){border-top:1px solid rgba(200,164,92,.3)}
  .trust-strip{grid-template-columns:1fr 1fr}.trust-strip span:nth-child(3){border-left:0;border-top:1px solid var(--line)}.trust-strip span:nth-child(4){border-top:1px solid var(--line)}
  .product-route{grid-template-columns:1fr;gap:1rem}.product-featured{transform:none}.product-card:last-child{grid-column:auto;display:flex}.product-card:last-child .card-cover{height:285px}
  .featured-visual{min-height:500px;order:2}.featured-copy{order:1}
  .preview-shelf{gap:1rem;padding:1.2rem}.preview-shelf .preview-featured{transform:none}
  .method-grid{grid-template-columns:1fr}.method-grid article+article{border-left:0;border-top:1px solid var(--line)}
  .founder-facts{grid-template-columns:1fr}.founder-facts div,.founder-facts div:first-child{padding:.8rem 0;border-bottom:1px solid rgba(219,185,111,.2)}
  .newsletter-copy h2{max-width:14ch}.newsletter-panel{width:min(100%,650px);margin-inline:auto}
  .resource-grid,.grid-3{grid-template-columns:1fr}.resource-card{display:grid;grid-template-columns:.45fr 1fr}.resource-visual{height:100%}
  .faq-intro{position:static}
  .footer-top{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.footer-top>div:last-child{grid-column:auto}.footer-bottom{display:block}
  .buy-panel{position:static}.fact-list{grid-template-columns:1fr}
}

@media(max-width:560px){
  section{padding:4rem 0}.actions{display:grid}.actions .btn{width:100%}
  .editorial-hero{padding-top:2.2rem}.hero-manifesto{font-size:.58rem;letter-spacing:.22em}.hero-manifesto i{padding-inline:.2em}.hero-masthead h1{font-size:3.55rem}.hero-tagline{font-size:.61rem;line-height:1.5;letter-spacing:.13em}
  .hero-copy h2{font-size:2.45rem}.hero-lede{font-size:1.15rem}.hero-proof{font-size:.66rem;line-height:1.45}
  .publication-stage{min-height:390px}.publication-stage:before{left:2%;right:-8%}.stage-ring{width:240px;height:240px}.publication-free{width:35%;left:1%;top:26%}.publication-main{width:45%;left:28%}.publication-advanced{width:35%;right:0;top:27%}.premium-seal{width:88px;height:88px;right:-1%}.premium-seal strong{font-size:.82rem}.premium-seal small{font-size:.43rem}
  .benefit-ribbon{margin-inline:-.75rem;width:calc(100% + 1.5rem)}.benefit-ribbon article{gap:.6rem;padding:.85rem .6rem}.benefit-ribbon article>span{width:34px;height:34px;font-size:1rem}.benefit-ribbon strong{font-size:.62rem}.benefit-ribbon small{font-size:.58rem}
  .trust-strip{margin-inline:-.75rem;width:calc(100% + 1.5rem)}.trust-strip span{font-size:.64rem;padding:.8rem .45rem}
  .card-cover{height:260px}.product-content{padding:1.2rem}
  .featured-visual{min-height:420px}.featured-visual img{width:74%}.feature-facts{grid-template-columns:1fr}.feature-facts div+div{padding-left:0;border-left:0;border-top:1px solid var(--line-dark)}
  .buffett-portrait img{min-height:0}.buffett-quotes blockquote>p{font-size:1.25rem}.buffett-action{align-items:stretch;flex-direction:column}.buffett-action .btn{width:100%}
  .preview-shelf{grid-template-columns:1fr 1fr}.preview-shelf article:last-child{grid-column:1/-1}.preview-shelf article:last-child img{max-height:390px}
  .resource-card{grid-template-columns:1fr}.resource-visual{height:150px}.resource-card h3{min-height:0}
  .footer-top{grid-template-columns:1fr}.footer-brand{grid-column:auto}.footer-top>div:last-child{grid-column:auto}
  .grid-2,.metrics{grid-template-columns:1fr}
  .sample-gallery{grid-template-columns:1fr}
  .comparison{display:block;overflow-x:auto}
  .cookie-actions{display:grid}.cookie-actions .btn{width:100%}
}

/* Optimización exclusiva para teléfonos. La presentación de escritorio no cambia. */
@media(max-width:760px){
  body.has-mobile-cta.mobile-cta-visible{padding-bottom:calc(74px + env(safe-area-inset-bottom))}
  section{padding:3.75rem 0}
  .wrap{width:min(100% - 1.25rem,1240px)}

  .nav{gap:.75rem}
  .brand{gap:.6rem}
  .menu-btn{min-height:46px;flex:none;touch-action:manipulation}
  .nav-links{padding:.7rem 1rem calc(1rem + env(safe-area-inset-bottom))}
  .nav-links>a{min-height:48px}

  .editorial-hero{padding-top:1.65rem}
  .hero-manifesto{white-space:nowrap;font-size:clamp(.48rem,1.8vw,.58rem);letter-spacing:.16em}
  .masthead-rule{margin-bottom:.9rem}
  .hero-masthead h1{font-size:clamp(3rem,15.2vw,3.55rem);line-height:.8}
  .hero-tagline{max-width:34ch;margin:1rem auto 0;font-size:.58rem;line-height:1.5;letter-spacing:.11em;text-wrap:balance}
  .premium-hero-grid{margin-top:1.7rem;gap:1.25rem}
  .hero-copy h2{font-size:clamp(2.15rem,10.8vw,2.55rem)}
  .hero-lede{font-size:1.08rem;line-height:1.45}
  .hero-copy .actions{gap:.65rem;margin:1.25rem 0 .9rem}
  .hero-copy .actions .btn{min-height:52px}
  .hero-proof{max-width:33ch;justify-content:center;font-size:.64rem;line-height:1.45}

  .publication-stage{min-height:330px}
  .publication-stage:before{inset:7% -7% 3% 1%}
  .stage-ring{width:220px;height:220px}
  .publication-free{width:33%;left:1%;top:25%}
  .publication-main{width:43%;left:29%;top:2%}
  .publication-advanced{width:33%;right:1%;top:25%}
  .premium-seal{width:78px;height:78px;right:0;top:1%}
  .premium-seal strong{font-size:.76rem}
  .premium-seal small{font-size:.4rem}

  .benefit-ribbon{margin-top:1rem}
  .benefit-ribbon article{min-height:76px}
  .benefit-ribbon article>span{width:32px;height:32px}

  .section-head{margin-bottom:2rem}
  .section-head>p:last-child{font-size:1rem}
  .product-route{gap:.85rem}
  .product-card{scroll-margin-top:84px}
  .card-cover{height:230px;padding:.75rem;background:linear-gradient(145deg,#07131d,#153247)}
  .card-cover img{width:auto;max-width:82%;height:100%;margin-inline:auto;object-fit:contain;object-position:center}
  .product-content{padding:1.15rem}
  .product-content h3{margin:.3rem 0 .65rem}
  .product-content>p:not(.price,.badge,.kicker){font-size:.95rem}
  .ticks li{margin:.42rem 0}
  .product-content .btn{width:100%;min-height:52px}
  .price{margin:.75rem 0 1rem}

  .featured-visual{min-height:330px}
  .featured-visual img{width:min(60%,250px)}
  .gold-frame{width:180px;height:180px}
  .feature-facts{margin:1.4rem 0}

  .buffett-intro,.buffett-quotes blockquote{padding:1.35rem}
  .buffett-action{margin-top:1.25rem;padding:1rem 0}
  .preview-shelf{padding:.85rem}
  .sample-note{font-size:.82rem}

  .founder-card,.newsletter-form{padding:1.2rem}
  .founder-seal{width:78px;height:78px}
  .founder-facts div,.founder-facts div:first-child{padding:.65rem 0}
  .profile-training{padding:.9rem}
  .newsletter-benefits{margin-top:1.35rem}
  .newsletter-benefits li{align-items:flex-start}
  .newsletter-panel{padding:.65rem}
  .newsletter-form input:not([type="checkbox"]){min-height:54px;font-size:1rem}
  .newsletter-consent{font-size:.84rem}

  .faq details summary{min-height:56px;padding:.9rem 0}
  .final-cta .actions{width:100%}
  .final-cta .btn{min-height:52px}
  .text-link{min-height:44px;display:inline-flex;align-items:center}
  .site-footer a,.site-footer .footer-button{min-height:44px;display:flex;align-items:center}

  .cookie-banner,.cookie-settings{left:.6rem;right:.6rem;max-width:none}
  .has-mobile-cta.mobile-cta-visible .cookie-preferences-floating{
    right:.6rem;
    bottom:calc(80px + env(safe-area-inset-bottom));
    width:auto;
    min-height:40px;
    padding:.45rem .65rem;
    font-size:0;
  }
  .has-mobile-cta.mobile-cta-visible .cookie-preferences-floating:before{content:"Cookies";font-size:.7rem}
  .has-mobile-cta.mobile-cta-visible .site-footer{padding-bottom:calc(2rem + env(safe-area-inset-bottom))}

  .mobile-cta{
    min-height:68px;
    padding:8px max(8px,env(safe-area-inset-right)) calc(8px + env(safe-area-inset-bottom)) max(8px,env(safe-area-inset-left));
    display:grid;
    grid-template-columns:1fr 44px;
    gap:6px;
    position:fixed;
    inset:auto 0 0;
    z-index:85;
    border-top:1px solid rgba(216,191,134,.55);
    background:rgba(5,13,20,.97);
    color:var(--warm-white);
    box-shadow:0 -10px 28px rgba(0,0,0,.3);
    backdrop-filter:blur(12px);
    opacity:0;
    visibility:hidden;
    transform:translateY(110%);
    transition:opacity .2s ease,visibility .2s ease,transform .2s ease;
  }
  .mobile-cta[hidden]{display:none}
  .mobile-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
  .mobile-cta>a{
    min-height:52px;
    padding:.55rem .8rem;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:.8rem;
    background:var(--gold);
    color:var(--charcoal);
    text-decoration:none;
    touch-action:manipulation;
  }
  .mobile-cta>a>span:first-child{display:grid;line-height:1.2}
  .mobile-cta small{font-size:.58rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase}
  .mobile-cta strong{font-size:.9rem}
  .mobile-cta>a>span:last-child{font-size:1.2rem}
  .mobile-cta>button{
    width:44px;
    min-height:44px;
    align-self:center;
    border:1px solid rgba(216,191,134,.45);
    background:transparent;
    color:var(--warm-white);
    font-size:1.25rem;
    cursor:pointer;
    touch-action:manipulation;
  }
}

@media(max-width:380px){
  .nav{gap:.45rem}
  .brand{gap:.5rem}
  .brand-mark{width:38px;height:38px;font-size:1rem}
  .brand-copy strong{font-size:1rem}
  .menu-btn{min-height:44px;padding:.45rem .6rem;font-size:.9rem}
  .hero-manifesto{letter-spacing:.12em}
  .benefit-ribbon{grid-template-columns:1fr}
  .benefit-ribbon article+article{border-left:0;border-top:1px solid rgba(200,164,92,.3)}
  .trust-strip{grid-template-columns:1fr}
  .trust-strip span+span{border-left:0;border-top:1px solid var(--line)}
  .preview-shelf{grid-template-columns:1fr}
  .preview-shelf article:last-child{grid-column:auto}
  .footer-top{grid-template-columns:1fr}
}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}

@media print{
  .site-header,.site-footer,.cookie-banner,.cookie-settings,.cookie-preferences-floating,.menu-btn,.btn{display:none!important}
  body{background:#fff;color:#000}
  section{padding:1rem 0}
  .card{box-shadow:none}
}

/* Recorrido de venta claro · agosto 2026 */
.offer-bar{background:var(--gold);color:#07131e;font-size:.8rem;font-weight:750;letter-spacing:.01em}
.offer-bar .wrap{min-height:42px;display:flex;align-items:center;justify-content:center;gap:1.5rem;text-align:center}
.offer-bar a{font-weight:900}
.cart-button{min-height:42px;padding:.55rem .85rem;border:1px solid var(--gold);background:transparent;color:var(--warm-white);font-weight:800;cursor:pointer}
.cart-button span{display:inline-grid;place-items:center;min-width:22px;height:22px;margin-left:.3rem;border-radius:50%;background:var(--gold);color:var(--charcoal);font-size:.72rem}

.sales-home section{padding:clamp(3.8rem,7vw,6.5rem) 0}
.sales-home .sales-hero{padding:clamp(3.2rem,6vw,5.5rem) 0;background:radial-gradient(circle at 78% 22%,rgba(185,148,82,.14),transparent 25rem),linear-gradient(125deg,#050d14,#102637 62%,#07121b);color:var(--warm-white);overflow:hidden}
.sales-home .sales-hero .eyebrow{color:var(--gold-light)}
.hero-product-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(320px,.65fr);align-items:center;gap:clamp(2.5rem,7vw,7rem)}
.sales-home .hero-copy h1{max-width:11ch;margin:.15rem 0 1.2rem;font-size:clamp(3.25rem,7.8vw,6.8rem);line-height:.82;letter-spacing:-.045em}
.sales-home .hero-copy h1 em{color:var(--gold-light);font-style:normal}
.sales-home .hero-lede{max-width:690px;color:#f1f3f4;font-family:var(--serif);font-size:clamp(1.2rem,2.1vw,1.55rem)}
.hero-points{max-width:680px;margin:1.6rem 0;padding:0;list-style:none}
.hero-points li{position:relative;margin:.7rem 0;padding-left:1.5rem;color:#d7dde1}
.hero-points li:before{content:"◆";position:absolute;left:0;top:.08rem;color:var(--gold);font-size:.72rem}
.price-lockup{display:flex;align-items:baseline;flex-wrap:wrap;gap:.45rem .8rem;margin:1.6rem 0 .6rem}
.price-lockup strong{color:var(--gold-light);font-family:var(--serif);font-size:clamp(2.5rem,5vw,4.2rem);line-height:1}
.price-lockup small{width:100%;color:#c7d0d6;font-size:.75rem;font-weight:800;text-transform:uppercase;letter-spacing:.1em}
.price-old{color:#adb8bf;font-size:1rem;text-decoration:line-through}
.sales-home .sales-hero .btn-secondary{border-color:#d2d9de;color:var(--warm-white)}
.sales-home .sales-hero .btn-secondary:hover{background:var(--warm-white);color:var(--charcoal)}
.sales-home .hero-proof{color:#bbc5cb;font-size:.78rem}
.hero-book{position:relative;margin:0;padding:clamp(1rem,2vw,1.6rem);background:rgba(255,255,255,.035);border:1px solid rgba(185,148,82,.45);box-shadow:0 36px 80px rgba(0,0,0,.35);transform:rotate(1.2deg)}
.hero-book:before{content:"";position:absolute;inset:12px;border:1px solid rgba(185,148,82,.2);pointer-events:none}
.hero-book img{display:block;width:100%;max-height:660px;object-fit:contain;filter:drop-shadow(0 22px 24px rgba(0,0,0,.22))}
.hero-book figcaption{text-align:center;margin-top:.8rem;color:var(--gold-light);font-size:.72rem;text-transform:uppercase;letter-spacing:.14em}
.hero-pack{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));align-items:stretch;gap:clamp(.7rem,2vw,1.25rem);margin:0;padding:clamp(1rem,2vw,1.6rem);background:rgba(255,255,255,.035);border:1px solid rgba(185,148,82,.45);box-shadow:0 36px 80px rgba(0,0,0,.35)}
.hero-pack figure{min-width:0;margin:0;padding:.65rem;background:rgba(4,13,20,.65);border:1px solid rgba(185,148,82,.24)}
.hero-pack img{display:block;width:100%;aspect-ratio:1055/1491;object-fit:contain;filter:drop-shadow(0 18px 20px rgba(0,0,0,.24))}
.hero-pack figcaption{display:grid;gap:.2rem;padding:.75rem .2rem .15rem;text-align:center}
.hero-pack figcaption strong{color:var(--gold-light);font-family:var(--serif);font-size:1rem}
.hero-pack figcaption span{color:#bfc9cf;font-size:.62rem;line-height:1.35;text-transform:uppercase;letter-spacing:.08em}

.sales-home .trust-strip{width:auto;margin:0;padding:0;background:#fff;border:0;border-bottom:1px solid var(--line)}
.sales-home .trust-strip .wrap{display:grid;grid-template-columns:repeat(4,1fr)}
.sales-home .trust-strip span{padding:1.05rem;text-align:center;color:#43515c;font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.07em}
.sales-home .trust-strip span+span{border-left:1px solid var(--line)}
.home-catalog{background:linear-gradient(180deg,#f7f4ed,#fff)}
.home-catalog-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1.1rem}
.home-catalog .product-card{background:#fff;box-shadow:var(--shadow-sm)}
.home-catalog .card-cover{height:auto;aspect-ratio:1055/1491;background:#071827}
.home-catalog .card-cover img{object-fit:cover}
.home-catalog .product-content h3{font-size:clamp(1.4rem,2vw,1.85rem)}
.home-catalog .product-content>p:not(.price,.kicker){min-height:5.2em}
.home-product-actions{display:grid;gap:.8rem;margin-top:auto}
.home-product-actions .btn{width:100%;margin-top:0;text-align:center}
.home-product-actions .text-link{justify-self:start;font-size:.86rem}
.catalog-note{margin:1.5rem 0 0;color:var(--warm-gray);text-align:center}
.catalog-note a{color:var(--burgundy);font-weight:800}
.concise-section{max-width:1120px}
.sales-home .section-head{margin-bottom:2.5rem}
.value-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.value-grid article{padding:clamp(1.4rem,3vw,2.4rem);background:var(--warm-white)}
.value-grid article>span{color:var(--gold-dark);font-size:.72rem;font-weight:900;letter-spacing:.16em}
.value-grid h3{margin:.55rem 0 .7rem}
.value-grid p{margin:0;color:var(--warm-gray)}
.value-grid .value-featured{background:var(--charcoal);color:var(--warm-white)}
.value-grid .value-featured>span,.value-grid .value-featured p{color:var(--gold-light)}
.sales-samples{grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(.8rem,1.8vw,1.3rem);max-width:1040px;margin:1.5rem auto 0}
.sales-samples figure{margin:0;padding:.55rem;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.sales-samples img{display:block;width:100%;aspect-ratio:210/297;object-fit:cover;object-position:top}
.sales-samples figcaption{padding:.7rem .25rem .2rem;color:var(--charcoal);font-size:.82rem;line-height:1.4;text-align:center}
.audience-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.2rem}
.audience-grid article{padding:clamp(1.5rem,4vw,3rem);background:var(--warm-white);border:1px solid var(--line)}
.audience-grid article:last-child{border-top:4px solid var(--danger)}
.audience-grid article:first-child{border-top:4px solid var(--gold)}
.audience-grid h2{font-size:clamp(2rem,4vw,3.2rem)}
.bundle-section{background:#fff}
.bundle-card{display:grid;grid-template-columns:1fr auto;align-items:center;gap:2rem;padding:clamp(1.6rem,4vw,3.2rem);background:linear-gradient(120deg,#07131e,#153247);color:var(--warm-white);border:1px solid var(--gold);box-shadow:var(--shadow-lg)}
.bundle-card .eyebrow{color:var(--gold-light)}
.bundle-card h2{font-size:clamp(2rem,4vw,3.4rem)}
.bundle-card p{color:#d5dde2}
.bundle-saving{margin-bottom:0}
.bundle-saving strong{color:var(--gold-light)}

.cart-drawer{position:fixed;inset:0;z-index:120}
.cart-drawer[hidden]{display:none}
.cart-backdrop{position:absolute;inset:0;background:rgba(2,8,13,.68);backdrop-filter:blur(3px)}
.cart-panel{position:absolute;right:0;top:0;bottom:0;width:min(450px,100%);display:flex;flex-direction:column;background:var(--warm-white);box-shadow:-24px 0 70px rgba(0,0,0,.3)}
.cart-panel>header{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem;padding:1.5rem;border-bottom:1px solid var(--line)}
.cart-panel h2{margin:0;font-size:2rem}
.cart-panel>header .eyebrow{margin-bottom:.35rem}
.cart-panel>header button{width:44px;height:44px;border:1px solid var(--line);background:transparent;color:var(--charcoal);font-size:1.5rem;cursor:pointer}
.cart-panel>[data-cart-items]{flex:1;overflow:auto;padding:1.3rem}
.cart-empty{color:var(--warm-gray)}
.cart-item{display:grid;grid-template-columns:1fr auto;gap:.5rem 1rem;padding:1rem 0;border-bottom:1px solid var(--line)}
.cart-item strong{font-family:var(--serif);font-size:1.1rem}
.cart-item span{font-weight:800}
.cart-item button{grid-column:1/-1;justify-self:start;padding:0;border:0;background:transparent;color:var(--danger);font-size:.8rem;text-decoration:underline;cursor:pointer}
.cart-panel>footer{padding:1.4rem;border-top:1px solid var(--line);background:var(--ivory)}
.cart-total{display:flex;align-items:center;justify-content:space-between;margin-bottom:.25rem}
.cart-total strong{font-family:var(--serif);font-size:2rem}
.cart-panel>footer p,.cart-panel>footer small{color:var(--warm-gray);font-size:.75rem}
.cart-panel>footer .btn{width:100%;margin:.8rem 0}
.cart-panel>footer .btn[aria-disabled="true"]{opacity:.5;pointer-events:none}
body.cart-open{overflow:hidden}

@media(max-width:920px){
  .hero-product-grid{grid-template-columns:1fr .72fr;gap:2rem}
  .sales-home .hero-copy h1{font-size:clamp(3rem,8vw,5rem)}
  .sales-samples{grid-template-columns:repeat(2,minmax(0,1fr));max-width:680px}
  .sales-home .trust-strip .wrap{grid-template-columns:repeat(2,1fr)}
  .sales-home .trust-strip span:nth-child(3){border-left:0;border-top:1px solid var(--line)}
  .sales-home .trust-strip span:nth-child(4){border-top:1px solid var(--line)}
  .home-catalog-grid{grid-template-columns:repeat(2,1fr)}
}

@media(max-width:720px){
  .offer-bar .wrap{min-height:48px;justify-content:space-between;gap:.6rem;font-size:.72rem;text-align:left}
  .offer-bar a{white-space:nowrap}
  .hero-product-grid{grid-template-columns:1fr}
  .sales-home .sales-hero{padding-top:2.5rem}
  .sales-home .hero-copy{display:flex;flex-direction:column;text-align:left}
  .sales-home .hero-copy .eyebrow{order:1}
  .sales-home .hero-copy h1{order:2}
  .sales-home .hero-copy .hero-lede{order:3;margin-inline:0}
  .sales-home .hero-copy .price-lockup{order:4;margin:1.15rem 0 .5rem}
  .sales-home .hero-copy .actions{order:5}
  .sales-home .hero-copy .hero-proof{order:6;margin-inline:0}
  .sales-home .hero-copy .hero-points{order:7;margin:1.35rem 0 0}
  .sales-home .hero-copy h1{font-size:clamp(3.15rem,16vw,5rem)}
  [data-product-page] .hero-copy h1{font-size:clamp(2.6rem,12.6vw,3.45rem);letter-spacing:-.035em}
  .sales-home .hero-copy .actions{display:grid}
  .hero-book{width:min(78vw,360px);margin-inline:auto}
  .hero-pack{width:min(100%,520px);margin-inline:auto;padding:.75rem}
  .hero-pack figure{padding:.45rem}
  .hero-pack figcaption span{font-size:.56rem}
  .value-grid,.audience-grid{grid-template-columns:1fr}
  .home-catalog-grid{grid-template-columns:1fr}
  .home-catalog .product-content>p:not(.price,.kicker){min-height:0}
  .bundle-card{grid-template-columns:1fr}
  .bundle-card .btn{width:100%}
  .sales-home .mobile-cta>button[data-cart-add],.sales-home .mobile-cta>button[data-cart-bundle]{width:auto;min-height:52px;padding:.55rem .8rem;display:flex;align-items:center;justify-content:space-between;gap:.8rem;background:var(--gold);border:0;color:var(--charcoal);font-size:inherit}
  .sales-home .mobile-cta>button[data-cart-add]>span:first-child,.sales-home .mobile-cta>button[data-cart-bundle]>span:first-child{display:grid;text-align:left;line-height:1.2}
  .sales-home .mobile-cta>button[data-cart-add]>span:last-child,.sales-home .mobile-cta>button[data-cart-bundle]>span:last-child{font-size:1.2rem}
  .sales-home .mobile-cta>button[data-close-mobile-cta]{width:44px;background:transparent;color:var(--warm-white)}
}

@media(max-width:480px){
  .sales-home .trust-strip .wrap{grid-template-columns:1fr}
  .sales-samples{grid-template-columns:repeat(2,minmax(0,1fr));gap:.65rem}
  .sales-samples figure{padding:.35rem}
  .sales-samples figcaption{padding:.55rem .15rem .15rem;font-size:.72rem}
  .sales-home .trust-strip span+span,.sales-home .trust-strip span:nth-child(3){border-left:0;border-top:1px solid var(--line)}
  .hero-pack figcaption strong{font-size:.86rem}
}

/* Credibilidad editorial: autor y artículo conservados en la portada comercial */
.editorial-credibility{background:#f7f3ea}
.editorial-credibility-grid{display:grid;gap:clamp(1.5rem,4vw,3rem)}
.author-proof{display:grid;grid-template-columns:minmax(0,.7fr) minmax(0,1.3fr);gap:1rem clamp(2rem,6vw,6rem);align-items:start;padding:clamp(2rem,5vw,4rem);border:1px solid #d6d0c4;background:#fff}
.author-proof .eyebrow,.author-proof h2,.author-proof .text-link{grid-column:1}
.author-proof>p{grid-column:2;margin:.2rem 0;color:var(--warm-gray);line-height:1.75}
.author-proof h2{max-width:12ch;margin:.25rem 0 1rem}
.author-proof .text-link{align-self:end;margin-top:.5rem;color:var(--burgundy)}
.buffett-editorial{display:grid;grid-template-columns:minmax(280px,.9fr) minmax(0,1.1fr);align-items:stretch;overflow:hidden;background:#071827;color:#fff;box-shadow:var(--shadow-lg)}
.buffett-editorial figure{margin:0;background:#030b11}
.buffett-editorial img{display:block;width:100%;height:100%;min-height:330px;object-fit:cover;filter:saturate(.72) contrast(1.05)}
.buffett-editorial figcaption{padding:.65rem 1rem;color:#aeb9c1;font-size:.7rem}
.buffett-editorial>div{display:flex;flex-direction:column;justify-content:center;padding:clamp(2rem,5vw,4.5rem)}
.buffett-editorial blockquote{max-width:17ch;margin:.5rem 0 1.25rem;color:var(--gold-light);font-family:var(--serif);font-size:clamp(1.8rem,4vw,3.5rem);line-height:1.08}
.buffett-editorial p:not(.eyebrow){color:#d7e0e5;line-height:1.75}
.buffett-editorial small{display:block;margin-top:1rem;color:#93a3ae;line-height:1.55}
@media(max-width:820px){.author-proof,.buffett-editorial{grid-template-columns:1fr}.author-proof .eyebrow,.author-proof h2,.author-proof .text-link,.author-proof>p{grid-column:1}.buffett-editorial img{min-height:260px}.newsletter-shell{grid-template-columns:1fr}}

/* Biblioteca EPUB premium */
.ebook-grid{grid-template-columns:repeat(2,minmax(0,1fr));max-width:1080px;margin-inline:auto}
.ebook-grid .product-card{overflow:hidden;border-color:rgba(185,148,82,.35);box-shadow:0 22px 55px rgba(7,24,39,.1)}
.ebook-grid .card-cover{padding:1rem;background:linear-gradient(145deg,#06131e,#102d40)}
.ebook-grid .card-cover img{object-fit:contain;filter:drop-shadow(0 18px 22px rgba(0,0,0,.28))}
.ebook-grid .product-content{padding:clamp(1.35rem,3vw,2rem)}
.ebook-grid .ticks{margin:.9rem 0 1.1rem}
.pack-premium{padding:clamp(1.25rem,4vw,3.5rem);border:1px solid rgba(185,148,82,.34);background:#fff;box-shadow:0 30px 75px rgba(7,24,39,.11)}
.pack-premium .hero-book{background:#071827}
.pack-premium .hero-book img{aspect-ratio:1;object-fit:contain}
.product-route:has(> :nth-child(2)):not(:has(> :nth-child(3))){grid-template-columns:repeat(2,minmax(0,1fr));max-width:980px;margin-inline:auto}
@media(max-width:720px){.ebook-grid,.product-route:has(> :nth-child(2)):not(:has(> :nth-child(3))){grid-template-columns:1fr}.pack-premium{padding:1rem}.ebook-grid .card-cover{padding:.75rem}}

@media(max-width:720px){
  .ebook-reader{padding:.45rem;border-radius:18px}
  .ebook-reader-bar{padding:.4rem .5rem .7rem;font-size:.62rem}
  .ebook-reader-bar strong{max-width:48vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .ebook-reader-screen{min-height:610px;padding:1.35rem 1.15rem}
  .ebook-reader-page p,.ebook-reader-page li{font-size:.93rem;line-height:1.58}
  .ebook-reader-page h3{font-size:1.85rem}
  .ebook-reader-figure img{width:min(100%,330px)}
  .ebook-reader-controls{grid-template-columns:44px 1fr 44px;gap:.3rem}
  .ebook-reader-progress{gap:.48rem}
  .ebook-reader-progress span{min-width:74px;font-size:.66rem}
  .nav-cart{min-height:46px}
}
@media(prefers-reduced-motion:reduce){.ebook-reader-page{animation:none}}