@charset "UTF-8";
:root{--navy:#101f30;--deep:#0c1927;--gold:#dbb976;--ivory:#f7f4ec;--ink:#202f3c;--muted:#b9c3cc;--line:rgba(219,185,118,.25)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--ivory);color:var(--ink);font:16px/1.7 Arial,Helvetica,sans-serif}a{color:inherit}button,a,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,summary:focus-visible{outline:3px solid #b88630;outline-offset:6px}h1,h2,h3,p,figure{margin:0}h1,h2,h3{font-family:Georgia,'Times New Roman',serif;font-weight:400}h2{font-size:clamp(2.2rem,4.2vw,3.8rem);line-height:1.12;letter-spacing:-.035em}h2 em{font-weight:400;color:#92713d}h3{font-size:1.6rem;line-height:1.25}p+p{margin-top:1rem}.wrap{width:min(1160px,calc(100% - 64px));margin:auto}.dark{color:var(--ivory);background:var(--navy)}.dark h2 em{color:var(--gold)}.section{padding:100px 0}.eyebrow{font:700 .68rem/1.6 Arial,sans-serif;letter-spacing:.2em;margin-bottom:23px}.skip{position:fixed;top:-100px;left:20px;background:var(--ivory);padding:12px;z-index:20}.skip:focus{top:10px}.header{background:var(--navy);color:var(--ivory);border-bottom:1px solid var(--line)}.header-row{height:94px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:700;font-size:.9rem;letter-spacing:.12em;line-height:1.4}.brand small{display:block;font-size:.53rem;letter-spacing:.24em;font-weight:400}.brand-mark{width:42px;height:43px;display:grid;place-items:center;border:1px solid var(--gold);color:var(--gold);font:22px Georgia,serif;letter-spacing:-3px;padding-right:3px}nav{display:flex;align-items:center;gap:32px;font-size:.8rem}nav a{text-decoration:none}nav a:hover{text-decoration:underline;text-underline-offset:6px}.nav-buy{border:1px solid var(--line);padding:11px 18px}.nav-buy span{margin-left:22px;color:var(--gold)}.hero{overflow:hidden;background:radial-gradient(ellipse at 85% 45%,#273a46 0,transparent 50%),var(--navy)}.hero-grid{display:grid;grid-template-columns:1.15fr 1fr;align-items:center;gap:70px;padding-top:75px;padding-bottom:70px}.hero .eyebrow{color:var(--gold);display:flex;align-items:center;gap:12px}.eyebrow>span{height:1px;width:25px;background:var(--gold)}h1{font-size:clamp(3.3rem,5.5vw,5.4rem);line-height:1.04;letter-spacing:-.04em}h1 em{font-style:normal;color:var(--gold)}.hero-lead{font:1.35rem/1.6 Georgia,serif;margin-top:28px}.muted{color:var(--muted);font-size:.92rem;max-width:400px;margin-top:18px}.button{display:inline-flex;justify-content:space-between;align-items:center;gap:32px;min-height:56px;background:var(--gold);color:#152334;text-decoration:none;font-size:.83rem;font-weight:700;padding:16px 24px;border:1px solid var(--gold);transition:background .18s,transform .18s}.button:hover{background:#ecd09b;transform:translateY(-2px)}.hero .button{margin-top:30px}.button span{font-size:1.3rem;font-weight:400}.price-inline{margin-top:15px;font-size:.72rem;display:flex;align-items:center;gap:13px;flex-wrap:wrap}.price-inline strong{color:var(--gold);font-size:.85rem}.price-inline span{color:var(--muted)}.book-scene{position:relative;display:flex;align-items:center;flex-direction:column;perspective:1200px;padding:20px}.orbit{position:absolute;border:1px solid var(--line);border-radius:50%;width:440px;height:440px;top:45px;left:50%;transform:translateX(-50%)}.orbit:after{content:'';position:absolute;inset:22px;border:1px solid rgba(219,185,118,.1);border-radius:50%}.book{width:310px;height:445px;transform:rotateY(-14deg) rotateZ(3deg);position:relative;box-shadow:25px 35px 45px #06111c88;border-radius:2px 5px 5px 2px;background:#102738}.book:before{content:'';position:absolute;right:-15px;top:7px;width:16px;height:432px;background:repeating-linear-gradient(90deg,#c8c2b5 0 1px,#efe9dc 1px 3px);transform:skewY(-12deg);border-radius:0 4px 4px 0}.book-cover{position:absolute;inset:0;overflow:hidden;display:flex;flex-direction:column;align-items:center;text-align:center;border:1px solid #ad905455;background:linear-gradient(90deg,#071929,transparent 7%),#142b3d}.book-cover:after{content:'';position:absolute;inset:10px;border:1px solid #d9b87955;pointer-events:none}.cover-publisher{font-size:8px;letter-spacing:3px;margin-top:28px;color:var(--gold)}.cover-title{font:34px/1.06 Georgia,serif;margin-top:29px;letter-spacing:-1px;z-index:1}.cover-title em{color:var(--gold);font-style:normal}.cover-art{position:absolute;width:100%;height:280px;bottom:35px;left:0}.cover-author{position:absolute;bottom:27px;left:0;right:0;font-size:7px;letter-spacing:2px;z-index:1;background:linear-gradient(transparent,#142b3d);padding-top:24px}.cover-author strong{font-size:11px;font-weight:400}.book-scene figcaption{font-size:.61rem;letter-spacing:.04em;color:#b9c3cc;margin-top:40px;text-align:center}.hero-foot{border-top:1px solid var(--line);padding-top:23px;padding-bottom:23px;display:flex;justify-content:space-between;font-size:.6rem;letter-spacing:.2em;color:var(--gold)}.split{display:grid;grid-template-columns:1fr 1fr;gap:100px}.body-copy{font-size:.97rem;color:#52606a}.pull{font:italic 1.5rem/1.45 Georgia,serif;color:var(--ink);padding-top:13px}.benefits{padding-top:30px}.benefit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:45px;margin-top:48px}.benefit-grid article{border-top:1px solid #d7d2c5;padding-top:26px}.number{font-size:.75rem;color:#876a37;letter-spacing:.1em}.benefit-grid h3{margin:22px 0 14px}.benefit-grid p{font-size:.9rem;color:#52606a}.section-head{display:flex;align-items:end;justify-content:space-between;gap:60px;margin-bottom:45px}.editorial-note{max-width:310px;font-size:.74rem;color:var(--muted);border-left:1px solid var(--gold);padding-left:18px}.chapter-grid{display:grid;grid-template-columns:1fr 1fr;column-gap:65px}.chapter-grid article{display:flex;gap:25px;padding:28px 0;border-top:1px solid var(--line)}.chapter-grid article>span{font:italic 1.6rem Georgia,serif;color:var(--gold);padding-top:2px}.chapter-grid h3{font-size:1.4rem}.chapter-grid p{color:var(--muted);font-size:.86rem;margin-top:10px}.audience-list p{border-bottom:1px solid #d7d2c5;padding:0 0 22px;display:flex;gap:25px;font-size:.95rem}.audience-list p+p{margin-top:22px}.audience-list span{color:#96723b;font-size:1.3rem}.author{padding-top:20px}.author-grid{background:#ece9df;display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;padding:60px}.author-monogram{background:var(--navy);color:var(--gold);min-height:280px;display:flex;align-items:center;justify-content:center;flex-direction:column;position:relative}.author-monogram:after{content:'';position:absolute;inset:18px;border:1px solid var(--line)}.author-monogram>span{font:italic 100px Georgia,serif;letter-spacing:-10px;padding-right:12px}.author-monogram small{font-size:.5rem;letter-spacing:.17em;margin-top:25px}.author .credential{color:#806432;font-size:.82rem;margin:15px 0 24px}.author p:not(.eyebrow):not(.credential){font-size:.9rem;max-width:450px}.signature{font:italic 1.1rem Georgia,serif;margin-top:30px;color:#806432}.offer{background:radial-gradient(ellipse at 10% 10%,#293c46,transparent 60%),var(--deep)}.offer-grid{display:grid;grid-template-columns:1.3fr 1fr;align-items:center;gap:100px}.offer-grid>div>p:not(.eyebrow){margin-top:25px;color:var(--muted);font-size:.92rem}.offer-card{padding:40px;border:1px solid var(--line);background:#ffffff03}.offer-card .eyebrow{color:var(--gold)}.offer-card .price{font:4.5rem/1.1 Georgia,serif;color:var(--ivory);margin-top:20px}.price span{font:14px Arial,sans-serif}.offer-card .tax{font-size:.85rem;margin-top:4px}.offer-card .button{width:100%;margin-top:28px}.purchase-note{font-size:.7rem!important;line-height:1.6;color:var(--muted)}.faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:90px}details{border-bottom:1px solid #d7d2c5;padding:22px 0}details:first-child{padding-top:0}summary{cursor:pointer;font-size:.93rem;font-weight:600;padding-right:15px}details p{font-size:.88rem;color:#52606a;margin-top:18px;max-width:550px}footer{padding:40px 0;background:#ece9df}.footer-row{display:flex;justify-content:space-between;align-items:center;gap:30px}.footer-row p,.footer-row>small{font-size:.7rem;color:#52606a}.footer-row .brand{font-size:.72rem}.footer-row .brand-mark{color:#806432;border-color:#806432}.mobile-buy{display:none}
@media(min-width:1400px){.hero-grid{padding-top:95px;padding-bottom:90px}}
@media(max-width:900px){.wrap{width:calc(100% - 48px)}.hero-grid{gap:20px}.book{width:260px;height:390px}.book:before{height:377px}.cover-title{font-size:30px}.cover-art{height:250px}.orbit{width:340px;height:340px}.hero-copy .eyebrow{font-size:.6rem}.split{gap:40px}.section{padding:75px 0}.benefits{padding-top:0}.author{padding-top:0}.author-grid{gap:35px;padding:36px}.offer-grid{gap:40px}.faq-grid{gap:40px}.section-head{gap:30px}.hero-foot{letter-spacing:.12em}.benefit-grid{gap:25px}.footer-row>small{display:none}}
@media(max-width:640px){html{scroll-padding-top:20px}.wrap{width:calc(100% - 40px)}.header-row{height:78px}.brand{font-size:.73rem}.brand-mark{height:35px;width:35px;font-size:19px}.brand small{font-size:.46rem}nav{gap:0}nav>a:not(.nav-buy){display:none}.nav-buy{font-size:.69rem;padding:9px 12px}.nav-buy span{margin-left:8px}.hero-grid{grid-template-columns:1fr;padding-top:43px;padding-bottom:28px;gap:30px}.hero-copy{text-align:center}.hero .eyebrow{justify-content:center;font-size:.57rem;letter-spacing:.15em}h1{font-size:clamp(2.65rem,12vw,4.3rem)}.hero-lead{font-size:1.2rem;margin-top:23px}.muted{margin:16px auto 0;font-size:.87rem}.hero .button{margin-top:25px;width:100%;max-width:360px;gap:12px}.price-inline{justify-content:center;gap:7px;font-size:.65rem}.book-scene{padding:8px 20px 0}.book{width:240px;height:346px;transform:rotateY(-12deg) rotateZ(3deg)}.book:before{height:333px;right:-11px;width:12px}.cover-publisher{margin-top:24px;font-size:6px}.cover-title{margin-top:20px;font-size:27px}.cover-art{height:215px;bottom:28px}.cover-author{bottom:20px;font-size:6px}.cover-author strong{font-size:8px}.orbit{width:290px;height:290px;top:28px}.book-scene figcaption{margin-top:27px;font-size:.57rem}.hero-foot{justify-content:center;gap:12px;padding-top:20px;padding-bottom:20px;font-size:.48rem;letter-spacing:.08em;flex-wrap:wrap}.hero-foot span:last-child{display:none}.section{padding:60px 0}h2{font-size:2.4rem}.eyebrow{font-size:.6rem;margin-bottom:18px}.split,.benefit-grid,.chapter-grid,.author-grid,.offer-grid,.faq-grid{grid-template-columns:1fr;gap:28px}.body-copy{font-size:.9rem}.pull{font-size:1.35rem}.benefits{padding-top:0}.benefit-grid{margin-top:30px;gap:30px}.benefit-grid article{padding-top:20px}.benefit-grid h3{margin:12px 0}.section-head{display:block;margin-bottom:32px}.editorial-note{margin-top:25px;max-width:none}.chapter-grid{gap:0}.chapter-grid article{padding:24px 0;gap:20px}.chapter-grid h3{font-size:1.35rem}.chapter-grid article:last-child{border-bottom:1px solid var(--line)}.audience-list{margin-top:8px}.author{padding-top:0}.author-grid{padding:25px}.author-monogram{min-height:230px}.author-grid h2{font-size:2.2rem}.offer-grid{gap:32px}.offer-card{padding:28px}.faq-grid{gap:35px}details:first-child{padding-top:20px;border-top:1px solid #d7d2c5}.footer-row{flex-direction:column;align-items:flex-start;gap:20px}footer{padding:30px 0 115px}.mobile-buy{display:flex;position:fixed;z-index:10;bottom:0;left:0;right:0;background:var(--deep);color:var(--ivory);border-top:1px solid var(--line);padding:12px 20px calc(12px + env(safe-area-inset-bottom));align-items:center;justify-content:space-between;gap:15px;box-shadow:0 -8px 30px #0002}.mobile-buy strong{font-size:.87rem;display:block}.mobile-buy small{font-size:.65rem;color:var(--muted);display:block}.mobile-buy .button{min-height:44px;padding:8px 22px;font-size:.8rem;gap:25px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button{transition:none}.button:hover{transform:none}}

.chapter-grid .references{font-size:.66rem;letter-spacing:.025em;color:var(--gold);margin-top:14px}

/* Mockups proporcionados por el titular: sin recortes ni deformación. */
.hero-mockup{min-width:0;margin:0}.hero-mockup img{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:5px;box-shadow:0 22px 65px #06111c66}.hero-mockup figcaption,.device-mockup figcaption{font-size:.67rem;line-height:1.6;color:var(--muted);margin-top:14px;text-align:center}.device-mockup{max-width:1000px;margin:0 auto 65px}.device-mockup img{display:block;width:100%;height:auto;border-radius:5px;border:1px solid var(--line)}
@media(max-width:640px){.hero-mockup{width:100%;max-width:450px;margin:0 auto}.hero-mockup figcaption,.device-mockup figcaption{font-size:.6rem}.device-mockup{margin-bottom:36px}}