/* Tellus Team — sistema visual
   Concepto: "estratos". Tellus es la tierra; el negocio se presenta como capas
   que se apoyan unas en otras: operar, organizar, formar, contar. */

:root{
  --basalt:#13302B;
  --basalt-2:#1E4640;
  --moss:#3F6B5F;
  --sage:#8FAA9C;
  --ochre:#A9802F;
  --ochre-soft:#E9DDC2;
  --chalk:#F6F7F4;
  --paper:#FFFFFF;
  --ink:#0F1C19;
  --slate:#55625D;
  --line:#D9DED9;
  --serif:"Newsreader",Georgia,"Times New Roman",serif;
  --sans:"Instrument Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --wrap:1180px;
  --gutter:clamp(16px,4vw,40px);
  --r-sm:4px; --r-md:10px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;background:var(--chalk);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.6;text-rendering:optimizeLegibility;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit}
p{margin:0 0 1em}
:focus-visible{outline:2px solid var(--ochre);outline-offset:3px;border-radius:2px}
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 14px;z-index:100}
.skip:focus{left:12px;top:12px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter)}

h1,h2,h3,h4{font-family:var(--serif);font-weight:400;line-height:1.12;margin:0 0 .5em;letter-spacing:-.01em;color:var(--ink)}
h1{font-size:clamp(38px,6vw,78px);letter-spacing:-.025em;line-height:1.03}
h2{font-size:clamp(30px,3.8vw,48px)}
h3{font-size:clamp(22px,2.2vw,28px)}
h4{font-family:var(--sans);font-size:17px;font-weight:600;letter-spacing:0}
.lead{font-size:clamp(19px,1.7vw,22px);line-height:1.5;color:var(--slate);max-width:62ch}
.prose{max-width:68ch}
.prose p,.prose li{font-size:18px;line-height:1.7}
.prose h2{margin-top:1.6em;font-size:clamp(28px,3vw,38px)}
.prose h3{margin-top:1.4em}
.prose ul,.prose ol{padding-left:22px}
.prose li{margin-bottom:.5em}
.kicker{font-family:var(--serif);font-style:italic;font-size:19px;color:var(--moss);margin:0 0 14px}
.muted{color:var(--slate)}

/* Cabecera */
.site-header{position:sticky;top:0;z-index:50;background:rgba(246,247,244,.94);backdrop-filter:saturate(1.2) blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand-mark{width:30px;height:30px;flex:none}
.brand-name{font-family:var(--serif);font-size:23px;letter-spacing:-.01em}
.nav ul{list-style:none;display:flex;gap:24px;margin:0;padding:0;align-items:center}
.nav a{text-decoration:none;font-size:15px;color:var(--ink);padding:6px 0;border-bottom:1px solid transparent}
.nav a:hover,.nav a[aria-current="page"]{border-bottom-color:var(--ochre)}
.nav a.btn{border-bottom:0;padding:10px 16px;color:#fff}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:var(--r-sm);padding:8px 12px;font:inherit;font-size:15px;color:var(--ink);cursor:pointer}
@media (max-width:1060px){
  .nav-toggle{display:block}
  .nav{position:absolute;left:0;right:0;top:72px;background:var(--chalk);border-bottom:1px solid var(--line);display:none}
  .nav.open{display:block}
  .nav ul{flex-direction:column;align-items:flex-start;gap:4px;padding:16px var(--gutter) 24px}
  .nav a{display:block;font-size:18px;padding:10px 0}
  .nav a.btn{margin-top:8px}
}

/* Botones */
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--sans);font-size:16px;font-weight:600;text-decoration:none;padding:14px 22px;border-radius:var(--r-sm);border:1px solid var(--basalt);background:var(--basalt);color:#fff;cursor:pointer;transition:background .2s}
.btn:hover{background:var(--basalt-2)}
.btn.ghost{background:transparent;color:var(--basalt)}
.btn.ghost:hover{background:rgba(19,48,43,.06)}
.btn.light{background:#fff;color:var(--basalt);border-color:#fff}
.btn.light:hover{background:var(--ochre-soft)}
.btn.outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn.outline-light:hover{background:rgba(255,255,255,.08)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.btn svg{width:18px;height:18px;flex:none}

/* Hero con estratos */
.hero{padding:clamp(56px,8vw,112px) 0 clamp(56px,8vw,96px);border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(32px,5vw,72px);align-items:end}
.hero .lead{margin-top:24px}
.hero-sign{margin-top:32px;font-size:15px;color:var(--slate);max-width:56ch}
.hero-sign a{color:var(--ink)}
.strata{display:flex;flex-direction:column;border-radius:var(--r-md);overflow:hidden;box-shadow:0 30px 60px -30px rgba(19,48,43,.45)}
.stratum{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;text-decoration:none;color:#fff;padding:18px 22px;transition:padding .25s ease}
.stratum:hover{padding-left:30px}
.stratum b{font-family:var(--serif);font-weight:400;font-size:clamp(21px,2vw,26px);line-height:1.15}
.stratum small{font-size:13.5px;opacity:.85;max-width:26ch;text-align:right;line-height:1.35}
.stratum.s1{background:var(--basalt);min-height:150px}
.stratum.s2{background:var(--basalt-2);min-height:124px}
.stratum.s3{background:var(--moss);min-height:104px}
.stratum.s4{background:var(--ochre-soft);color:var(--ink);min-height:84px}
.strata-cap{font-size:13.5px;color:var(--slate);margin-top:12px}
@media (max-width:900px){.hero-grid{grid-template-columns:1fr}}
@media (max-width:480px){.stratum{flex-direction:column;align-items:flex-start}.stratum small{text-align:left}}

/* Secciones */
.section{padding:clamp(64px,9vw,120px) 0}
.section.tight{padding:clamp(48px,6vw,80px) 0}
.section.alt{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section.dark{background:var(--basalt);color:#E8EEEB}
.section.dark h2,.section.dark h3{color:#fff}
.section.dark .lead,.section.dark .muted{color:#BFD0C9}
.section.dark .kicker{color:var(--sage)}
.section-head{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(24px,5vw,72px);align-items:end;margin-bottom:clamp(36px,5vw,64px)}
.section-head h2,.section-head p{margin:0}
@media (max-width:860px){.section-head{grid-template-columns:1fr}}

/* Líneas de negocio */
.lines{border-top:1px solid var(--line)}
.line-row{display:grid;grid-template-columns:220px 1fr 1fr;gap:clamp(20px,4vw,56px);padding:36px 0;border-bottom:1px solid var(--line)}
.line-row .layer{font-family:var(--serif);font-style:italic;color:var(--moss);font-size:18px}
.line-row h3{margin:0 0 8px}
.line-row p{margin:0;color:var(--slate)}
.line-row ul{margin:0;padding-left:18px;color:var(--slate)}
.more{display:inline-block;margin-top:14px;font-weight:600;color:var(--basalt);text-decoration:underline;text-decoration-color:var(--ochre);text-underline-offset:4px}
.section.dark .more{color:#fff}
@media (max-width:860px){.line-row{grid-template-columns:1fr;gap:10px}}

.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(24px,4vw,56px)}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(20px,3vw,40px)}
@media (max-width:860px){.grid-2,.grid-3{grid-template-columns:1fr}}
.item h3{font-size:24px}
.item p{color:var(--slate)}
.item ul{color:var(--slate);padding-left:18px;margin:0}
.section.dark .item p,.section.dark .item ul{color:#BFD0C9}
.rule-top{border-top:1px solid var(--line);padding-top:22px}
.section.dark .rule-top{border-top-color:rgba(255,255,255,.18)}

/* Lista de capacidades */
.cap-list{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}
.cap-list>li{display:grid;grid-template-columns:1fr 1.4fr;gap:clamp(16px,4vw,48px);padding:32px 0;border-bottom:1px solid var(--line)}
.cap-list h3{margin:0;font-size:26px}
.cap-list h3 span{display:block;font-family:var(--sans);font-size:15px;color:var(--moss);margin-top:8px;letter-spacing:0}
.cap-list p{margin:0;color:var(--slate)}
.cap-list ul{margin:12px 0 0;padding-left:18px;color:var(--slate)}
@media (max-width:760px){.cap-list>li{grid-template-columns:1fr}}

/* Casos */
.case{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);padding:clamp(24px,3vw,36px)}
.case .fig{font-family:var(--serif);font-size:clamp(34px,4vw,50px);line-height:1;color:var(--basalt);margin-bottom:10px}
.case .tag{font-size:14px;color:var(--moss);margin-bottom:14px;display:block}
.case h3{font-size:23px}
.case p{color:var(--slate);margin-bottom:0}
.case .backers{font-size:14px;margin-top:14px;color:var(--slate)}

.investors{display:flex;flex-wrap:wrap;gap:10px 34px;font-family:var(--serif);font-size:clamp(20px,2vw,26px);color:var(--basalt);margin:0;padding:0;list-style:none}
.section.dark .investors{color:#fff}
.investors li{white-space:nowrap}
.fine{font-size:14px;color:var(--slate);margin-top:18px;max-width:80ch}
.section.dark .fine{color:#A9BDB5}

/* Fases (secuencia real) */
.steps{counter-reset:step;list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(20px,3vw,36px)}
.steps>li{counter-increment:step;border-top:2px solid var(--basalt);padding-top:20px}
.steps>li::before{content:"Fase " counter(step);display:block;font-size:14px;color:var(--moss);margin-bottom:6px}
.steps h3{font-size:24px}
.steps ul{padding-left:18px;color:var(--slate);margin:0}
.section.dark .steps>li{border-top-color:var(--ochre)}
.section.dark .steps>li::before{color:var(--sage)}
.section.dark .steps ul{color:#BFD0C9}
@media (max-width:860px){.steps{grid-template-columns:1fr}}

/* Perfil */
.profile{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(28px,5vw,72px);align-items:start}
.portrait{position:relative;aspect-ratio:4/5;border-radius:var(--r-md);overflow:hidden;background:linear-gradient(180deg,var(--basalt-2),var(--basalt))}
.portrait img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:1}
.portrait .mono{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;padding:28px;color:#fff;font-family:var(--serif);font-size:clamp(28px,3vw,40px);line-height:1.05}
.portrait .mono small{font-family:var(--sans);font-size:14px;color:#BFD0C9;margin-top:10px;line-height:1.4}
.facts{list-style:none;padding:0;margin:24px 0 0;border-top:1px solid var(--line)}
.facts li{padding:14px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:170px 1fr;gap:16px;font-size:16px}
.facts li span:first-child{color:var(--slate)}
@media (max-width:860px){.profile{grid-template-columns:1fr}.portrait{max-width:420px}}
@media (max-width:520px){.facts li{grid-template-columns:1fr;gap:2px}}

blockquote.pull{margin:0;font-family:var(--serif);font-size:clamp(24px,2.8vw,34px);line-height:1.3;color:var(--ink);max-width:32ch}
blockquote.pull footer{font-family:var(--sans);font-size:15px;color:var(--slate);margin-top:16px}
.section.dark blockquote.pull{color:#fff}
.section.dark blockquote.pull footer{color:#BFD0C9}

/* Timeline de trayectoria */
.timeline{list-style:none;margin:0;padding:0;border-left:2px solid var(--line)}
.timeline li{position:relative;padding:0 0 28px 28px}
.timeline li::before{content:"";position:absolute;left:-7px;top:8px;width:12px;height:12px;border-radius:50%;background:var(--chalk);border:2px solid var(--basalt)}
.timeline h3{font-size:23px;margin-bottom:4px}
.timeline .role{color:var(--moss);font-size:15px;margin-bottom:8px;display:block}
.timeline p{color:var(--slate);margin:0}

/* Academia */
.programs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
@media (max-width:960px){.programs{grid-template-columns:1fr}}
.program{border:1px solid var(--line);border-radius:var(--r-md);background:var(--paper);padding:28px;display:flex;flex-direction:column}
.program .when{font-size:14px;color:var(--moss)}
.program h3{margin-top:8px}
.program p{color:var(--slate)}
.program ul{padding-left:18px;color:var(--slate);margin:0 0 4px}
.program.featured{background:var(--basalt);border-color:var(--basalt);color:#E8EEEB}
.program.featured h3{color:#fff}
.program.featured .when{color:var(--sage)}
.program.featured ul,.program.featured p{color:#C9D8D2}
.areas{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 clamp(24px,4vw,56px)}
.areas li{padding:18px 0;border-top:1px solid var(--line);display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.3fr);gap:16px}
.areas b{font-weight:600}
.areas span{color:var(--slate);font-size:16px}
@media (max-width:760px){.areas{grid-template-columns:1fr}.areas li{grid-template-columns:1fr;gap:2px}}

/* Revista */
.masthead{font-family:var(--serif);font-size:clamp(52px,9vw,124px);line-height:.92;letter-spacing:-.035em;margin:0}
.editorial{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 clamp(24px,4vw,56px)}
.editorial li{padding:26px 0;border-top:1px solid var(--line)}
.editorial h3{font-size:24px;margin-bottom:6px}
.editorial p{color:var(--slate);margin:0}
@media (max-width:760px){.editorial{grid-template-columns:1fr}}
.articles{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}
.articles li{padding:24px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:200px 1fr;gap:20px}
.articles .topic{color:var(--moss);font-size:15px}
.articles h3{font-size:24px;margin:0 0 6px}
.articles h3 a{text-decoration:none}
.articles h3 a:hover{text-decoration:underline;text-decoration-color:var(--ochre);text-underline-offset:4px}
.articles p{margin:0;color:var(--slate);font-size:16px}
@media (max-width:620px){.articles li{grid-template-columns:1fr;gap:4px}}
.byline{display:flex;flex-wrap:wrap;gap:6px 18px;font-size:15px;color:var(--slate);margin-top:24px}
.byline a{color:var(--ink)}
.toc{border-left:2px solid var(--ochre);padding:4px 0 4px 18px;margin:32px 0;font-size:16px}
.toc ol{margin:8px 0 0;padding-left:18px}
.toc a{color:var(--slate)}
.callout{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);padding:24px 28px;margin:32px 0}
.callout p:last-child{margin:0}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:clamp(32px,5vw,80px)}
.article-aside{position:sticky;top:100px;align-self:start;font-size:15px;color:var(--slate)}
.article-aside h4{margin-bottom:8px;color:var(--ink)}
@media (max-width:960px){.article-layout{grid-template-columns:1fr}.article-aside{position:static}}

/* FAQ */
.faq{border-top:1px solid var(--line);max-width:880px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:22px 44px 22px 0;font-family:var(--serif);font-size:22px;line-height:1.3;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:18px;font-family:var(--sans);font-size:26px;color:var(--moss);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{color:var(--slate);padding-bottom:20px;margin:0;max-width:70ch}

/* Formulario */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(28px,5vw,72px)}
@media (max-width:860px){.contact-grid{grid-template-columns:1fr}}
form.contact{display:grid;grid-template-columns:1fr 1fr;gap:18px}
form.contact .full{grid-column:1/-1}
@media (max-width:560px){form.contact{grid-template-columns:1fr}}
label{display:block;font-size:14px;font-weight:600;margin-bottom:6px}
input,select,textarea{width:100%;font:inherit;font-size:16px;color:var(--ink);background:var(--paper);border:1px solid #C5CCC7;border-radius:var(--r-sm);padding:12px 14px}
textarea{min-height:160px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:2px solid var(--ochre);outline-offset:0;border-color:transparent}
.check{display:flex;gap:10px;align-items:flex-start;font-weight:400;font-size:14px;color:var(--slate)}
.check input{width:auto;margin-top:4px}
.hp{position:absolute;left:-9999px}
.form-status{font-size:15px;margin:0;min-height:1.4em}
.form-status.err{color:#9B2C2C}
.form-status.ok{color:var(--moss)}
.channels{list-style:none;padding:0;margin:28px 0 0;border-top:1px solid var(--line)}
.channels li{padding:18px 0;border-bottom:1px solid var(--line)}
.channels b{display:block;font-weight:600}
.channels span{color:var(--slate);font-size:16px}

/* Cabecera de página */
.page-head{padding:clamp(40px,6vw,88px) 0 clamp(40px,5vw,64px);border-bottom:1px solid var(--line)}
.page-head h1{max-width:18ch}
.page-head.wide h1{max-width:22ch}
.crumbs{font-size:14px;color:var(--slate);margin-bottom:28px}
.crumbs a{color:var(--slate)}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:0}
.crumbs li+li::before{content:"/";margin-right:8px;color:#A8B1AD}

/* CTA */
.cta-band{background:var(--basalt);color:#fff;border-radius:var(--r-md);padding:clamp(32px,5vw,64px);display:grid;grid-template-columns:1.3fr .7fr;gap:32px;align-items:end}
.cta-band h2{color:#fff;margin:0}
.cta-band p{color:#BFD0C9;margin:12px 0 0;max-width:56ch}
.cta-band .btn-row{justify-content:flex-end;margin:0}
@media (max-width:860px){.cta-band{grid-template-columns:1fr}.cta-band .btn-row{justify-content:flex-start}}

/* Pie */
.site-footer{padding:64px 0 40px;font-size:15px;color:var(--slate)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;border-top:1px solid var(--line);padding-top:40px}
.foot-grid h4{font-size:15px;margin-bottom:12px;color:var(--ink)}
.foot-grid ul{list-style:none;padding:0;margin:0}
.foot-grid li{margin:6px 0}
.foot-grid a{text-decoration:none}
.foot-grid a:hover{text-decoration:underline}
.foot-legal{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:40px;font-size:13.5px}
.foot-legal a{margin-left:16px}
@media (max-width:860px){.foot-grid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.foot-grid{grid-template-columns:1fr}.foot-legal a{margin:0 16px 0 0}}

/* Única entrada orquestada: los estratos del hero */
@media (prefers-reduced-motion:no-preference){
  .hero .stratum{opacity:0;transform:translateX(24px);animation:rise .7s cubic-bezier(.2,.7,.2,1) forwards}
  .hero .s1{animation-delay:.05s}.hero .s2{animation-delay:.15s}.hero .s3{animation-delay:.25s}.hero .s4{animation-delay:.35s}
}
@keyframes rise{to{opacity:1;transform:none}}