:root{--navy:#101d38;--navy2:#1b2a4a;--terra:#c86d51;--gold:#d4af37;--ivory:#f7f3ea;--paper:#fffdf8;--ink:#20242d;--muted:#687083;--line:rgba(16,29,56,.17);--shadow:0 24px 80px rgba(10,22,43,.14)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"DM Sans",sans-serif;line-height:1.65}body.dialog-open{overflow:hidden}a{color:inherit}button{font:inherit}.progress{position:fixed;top:0;left:0;width:100%;height:3px;z-index:1000;background:transparent}.progress span{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--terra),var(--gold))}
.topbar{position:fixed;top:0;left:0;width:100%;height:72px;display:flex;align-items:center;justify-content:space-between;padding:0 clamp(20px,4vw,68px);z-index:900;color:white;background:rgba(16,29,56,.86);border-bottom:1px solid rgba(255,255,255,.12);backdrop-filter:blur(14px)}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;font-weight:700;letter-spacing:.02em}.brand-mark{width:48px;height:48px;display:block;object-fit:contain;background:rgba(255,253,248,.96);border-radius:50%;padding:3px;box-shadow:0 7px 22px rgba(4,12,27,.28)}.menu-button{width:44px;height:44px;border:0;background:transparent;color:inherit;display:grid;align-content:center;gap:7px;cursor:pointer}.menu-button span{height:1px;background:currentColor;width:28px;display:block}.chapter-nav{position:fixed;inset:0 0 0 auto;width:min(430px,100%);background:rgba(16,29,56,.98);color:white;padding:100px 42px 40px;transform:translateX(105%);transition:.45s cubic-bezier(.2,.8,.2,1);overflow:auto}.chapter-nav.open{transform:none}.chapter-nav a{display:grid;grid-template-columns:38px 1fr;gap:12px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.15);text-decoration:none}.chapter-nav small{color:var(--gold)}
.hero{min-height:100svh;position:relative;overflow:hidden;background:var(--navy);color:white;display:grid;align-items:end;padding:clamp(100px,14vh,160px) clamp(24px,8vw,130px) clamp(50px,8vh,90px)}.hero-image{position:absolute;inset:0;background:url('assets/portada.png') center/cover no-repeat;filter:saturate(.78)}.hero:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,17,34,.93) 0%,rgba(8,17,34,.72) 45%,rgba(8,17,34,.08) 78%),linear-gradient(0deg,rgba(8,17,34,.65),transparent 55%)}.hero-glow{position:absolute;width:520px;height:520px;border:1px solid rgba(212,175,55,.4);border-radius:50%;right:-120px;top:8%;z-index:1}.hero-copy{position:relative;z-index:2;max-width:820px}.eyebrow,.section-kicker{font-size:.75rem;letter-spacing:.25em;font-weight:700;color:var(--gold);text-transform:uppercase}.hero h1{font-family:"Playfair Display",serif;font-size:clamp(3.3rem,8vw,7.6rem);line-height:.88;margin:.35em 0 .22em;letter-spacing:-.045em}.hero h1 em{font-weight:600}.hero h1 span{font:600 clamp(1.2rem,2vw,2rem)/1 "DM Sans",sans-serif;letter-spacing:0}.hero-subtitle{font:600 clamp(1.25rem,2.5vw,2rem)/1.35 "Playfair Display",serif;color:#efe5d3}.begin{display:inline-flex;gap:24px;margin-top:32px;padding:14px 0;border-bottom:1px solid var(--gold);text-decoration:none;font-weight:600}.hero-index{position:absolute;right:5vw;bottom:5vh;z-index:2;display:flex;gap:10px;font:600 1rem "DM Sans";color:rgba(255,255,255,.65)}.hero-index span:first-child:after{content:"/";margin-left:10px;color:var(--terra)}
.map-section{padding:clamp(80px,12vw,160px) clamp(22px,8vw,120px);background:var(--ivory)}.map-section h2{font:600 clamp(2.4rem,5vw,5.2rem)/1.02 "Playfair Display",serif;max-width:980px;margin:.2em 0 .8em;color:var(--navy)}.chapter-map{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.chapter-map a{min-height:190px;padding:24px;display:flex;flex-direction:column;justify-content:space-between;text-decoration:none;border-right:1px solid var(--line);border-bottom:1px solid var(--line);transition:.25s}.chapter-map a:hover{background:var(--navy);color:white;transform:translateY(-4px)}.chapter-map strong{font:600 1.28rem/1.25 "Playfair Display",serif}.chapter-map span{color:var(--terra);font-weight:700}
.chapter{position:relative;padding:clamp(78px,10vw,150px) clamp(22px,8vw,120px);border-top:1px solid var(--line);overflow:hidden}.chapter:nth-child(even){background:var(--ivory)}.chapter-head{display:grid;grid-template-columns:minmax(90px,170px) minmax(0,1fr);gap:clamp(20px,5vw,80px);align-items:start;margin-bottom:60px}.chapter-number{font:700 clamp(4.5rem,10vw,10rem)/.75 "Playfair Display",serif;color:transparent;-webkit-text-stroke:1px var(--terra);opacity:.75}.chapter h2{font:700 clamp(2.3rem,5vw,5rem)/1.05 "Playfair Display",serif;color:var(--navy);margin:0;max-width:1000px}.prose{max-width:1220px;columns:2;column-gap:clamp(36px,6vw,90px);column-rule:1px solid var(--line)}.prose p{font-size:clamp(1.02rem,1.2vw,1.18rem);margin:0 0 1.25em;break-inside:avoid}.prose .subhead{font:700 clamp(1.4rem,2.4vw,2.2rem)/1.15 "Playfair Display",serif;color:var(--terra);margin-top:.6em}.prose .question{font:600 clamp(1.2rem,2vw,1.75rem)/1.35 "Playfair Display",serif;color:var(--navy);padding:15px 0 15px 22px;border-left:3px solid var(--gold)}.prose .dash{padding-left:22px;position:relative}.prose .dash:before{content:"";position:absolute;left:0;top:.8em;width:9px;height:2px;background:var(--terra)}
.prose .featured,.disciplines-intro .featured{font:600 clamp(1.5rem,2.45vw,2.2rem)/1.35 "Playfair Display",serif;color:var(--navy);padding:16px 0 16px 24px;border-left:3px solid var(--gold);margin:1.15em 0 1.4em;break-inside:avoid-column}.feature .prose .featured,.disciplines-intro .featured{color:white}
.prose strong,.discipline-dialog strong,.disciplines-intro strong,.closing strong{font-weight:700;color:var(--navy)}mark.marker{color:inherit;background:linear-gradient(180deg,transparent 48%,rgba(212,175,55,.42) 48%,rgba(212,175,55,.42) 91%,transparent 91%);padding:0 .06em;margin:0 -.06em;-webkit-box-decoration-break:clone;box-decoration-break:clone}.feature mark.marker,.disciplines mark.marker{background:linear-gradient(180deg,transparent 48%,rgba(200,109,81,.72) 48%,rgba(200,109,81,.72) 91%,transparent 91%)}.feature .prose strong,.disciplines strong{color:white}
.feature{display:grid;grid-template-columns:1.08fr .92fr;min-height:75vh;padding:0;background:var(--navy)!important;color:white}.feature-media{min-height:560px;background:center/cover no-repeat}.feature-copy{padding:clamp(55px,8vw,110px);align-self:center}.feature .chapter-number{color:rgba(255,255,255,.08);-webkit-text-stroke:0;position:absolute;right:4vw;bottom:2vw}.feature h2{color:white}.feature .prose{columns:1}.feature .prose p{color:#e9edf4}.feature .prose .question{color:white}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);margin:50px 0}.step{background:var(--paper);padding:clamp(28px,4vw,55px);min-height:310px}.step span{display:block;color:var(--terra);font-weight:700;margin-bottom:45px}.step h3{font:700 1.7rem/1.2 "Playfair Display",serif;color:var(--navy)}
.disciplines{background:var(--navy);color:white;padding:clamp(80px,10vw,150px) clamp(22px,7vw,100px)}.disciplines .chapter-head h2{color:white}.disciplines-intro{max-width:900px;margin:-20px 0 55px;font-size:1.15rem;color:#d8deea}.discipline-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.18)}.discipline-card{border:0;text-align:left;color:white;background:var(--navy);padding:30px;min-height:240px;display:flex;flex-direction:column;justify-content:space-between;cursor:pointer;transition:.3s}.discipline-card:hover,.discipline-card:focus-visible{background:var(--terra);transform:translateY(-6px);outline:none}.discipline-card small{color:var(--gold);font-weight:700}.discipline-card h3{font:700 clamp(1.4rem,2.3vw,2.2rem)/1.05 "Playfair Display",serif;margin:20px 0}.discipline-card p{margin:0;color:#d9dfeb}.discipline-card:hover p{color:white}
.discipline-dialog{width:min(980px,94vw);max-height:92vh;border:0;padding:0;background:var(--paper);color:var(--ink);box-shadow:var(--shadow)}.discipline-dialog::backdrop{background:rgba(8,17,34,.84);backdrop-filter:blur(7px)}.dialog-close{position:sticky;float:right;top:16px;right:16px;z-index:5;border:1px solid var(--line);background:var(--paper);width:48px;height:48px;border-radius:50%;font-size:1.8rem;cursor:pointer}.discipline-dialog article{padding:clamp(45px,8vw,90px)}.discipline-dialog h2{font:700 clamp(2.5rem,6vw,5rem)/1 "Playfair Display",serif;color:var(--navy);margin:.15em 0}.discipline-dialog h3{font:600 1.8rem "Playfair Display",serif;color:var(--terra)}.discipline-dialog p{font-size:1.08rem}.discipline-dialog .question{font:600 1.25rem "Playfair Display",serif;border-left:3px solid var(--gold);padding-left:18px;color:var(--navy)}
.closing{background:var(--ivory);padding:clamp(80px,12vw,160px) clamp(22px,12vw,180px)}.closing h2{font:700 clamp(2.8rem,7vw,7rem)/.95 "Playfair Display",serif;color:var(--navy);margin:0 0 .5em}.closing p{font-size:clamp(1.1rem,2vw,1.45rem);max-width:900px}.closing .question{font:600 clamp(1.25rem,2.3vw,2rem)/1.25 "Playfair Display",serif;color:var(--navy);padding:12px 0;border-bottom:1px solid var(--line)}footer{display:flex;justify-content:space-between;padding:34px clamp(22px,8vw,120px);background:var(--navy);color:white;font-weight:600}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .75s ease,transform .75s ease}.reveal.visible{opacity:1;transform:none}
@media(max-width:900px){.chapter-map{grid-template-columns:repeat(2,1fr)}.chapter-head{grid-template-columns:1fr}.chapter-number{font-size:5rem}.prose{columns:1}.feature{grid-template-columns:1fr}.feature-media{min-height:48vh}.steps{grid-template-columns:1fr}.step{min-height:auto}.discipline-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.topbar{height:64px}.brand-mark{width:43px;height:43px}.hero{padding-top:100px}.chapter-map,.discipline-grid{grid-template-columns:1fr}.chapter-map a{min-height:140px}.chapter{padding-left:20px;padding-right:20px}.feature-copy{padding:50px 22px}.discipline-card{min-height:190px}footer{flex-direction:column;gap:8px}.hero h1{font-size:3.45rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{opacity:1;transform:none;transition:none}.chapter-map a,.discipline-card{transition:none}}