*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --azul:#1F4E79;
  --azul-desc:#3B82C4;
  --niebla:#EBF3FB;
  --tierra:#A0714F;
  --gris:#6B7280;
  --negro:#1A1A1A;
  --blanco:#FFFFFF;
  --fondo:#FDFAF7;
  --borde:rgba(0,0,0,0.08);
  --serif:'Playfair Display',Georgia,serif;
  --sans:'Jost',Arial,sans-serif;
}
html{font-size:16px;scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--fondo);color:var(--negro);line-height:1.7;font-weight:300}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* NAV */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(253,250,247,0.96);backdrop-filter:blur(8px);border-bottom:.5px solid var(--borde);padding:0 48px;display:flex;align-items:center;justify-content:space-between;height:52px}
.nav-logo{display:flex;align-items:center}
.nav-logo-img{height:46px;width:auto;display:block}
.nav-links{display:flex;align-items:center;gap:28px;list-style:none}
.nav-links a{font-size:10px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--gris);transition:color .2s}
.nav-links a:hover{color:var(--azul)}
.nav-links a.active{color:var(--azul)}
.nav-cta{color:var(--azul) !important;border:.5px solid var(--azul);padding:5px 14px;border-radius:3px;transition:all .2s !important}
.nav-cta:hover{background:var(--azul);color:var(--blanco) !important}
.nav-burger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:4px}
.nav-burger span{display:block;width:20px;height:1px;background:var(--negro)}

/* PROGRESS */
.progress-bar{position:fixed;top:52px;left:0;z-index:99;height:2px;background:var(--azul-desc);width:0%;transition:width .1s linear;opacity:.8}

/* PAGE HEADER — negro, sin vesica */
.page-header{background:var(--negro);padding:120px 96px 72px;position:relative;overflow:hidden}
.page-header::before{content:'';position:absolute;left:48px;top:72px;bottom:40px;width:1.5px;background:rgba(255,255,255,.08)}
.page-header-label{font-size:9px;font-weight:500;color:rgba(255,255,255,.25);letter-spacing:.22em;text-transform:uppercase;margin-bottom:20px}
.page-header-title{font-family:var(--serif);font-size:clamp(36px,4vw,54px);font-weight:400;color:var(--blanco);line-height:1.08;max-width:700px;margin-bottom:16px}
.page-header-title em{font-style:italic;color:rgba(255,255,255,.45)}
.page-header-sep{display:flex;align-items:center;width:80px;margin-bottom:20px}
.page-header-sep-line{flex:1;height:.5px;background:rgba(255,255,255,.15)}
.page-header-sep-dot{width:4px;height:4px;border-radius:50%;background:var(--tierra);margin:0 8px;flex-shrink:0}
.page-header-sub{font-size:14px;font-weight:300;color:rgba(255,255,255,.3);max-width:520px;line-height:1.85}

/* LAYOUT */
.main{max-width:1100px;margin:0 auto;padding:80px 48px}
.main--narrow{max-width:1100px;margin:0 auto;padding:80px 48px}
.section{margin-bottom:72px}
.sep{display:flex;align-items:center;margin:48px 0}
.sep-line{flex:1;height:.5px;background:var(--borde);transform:scaleX(0);transform-origin:left;transition:transform .8s ease}
.sep.visible .sep-line{transform:scaleX(1)}
.sep-dot{width:5px;height:5px;border-radius:50%;background:var(--azul);margin:0 10px;flex-shrink:0;opacity:0;transition:opacity .3s ease .7s}
.sep.visible .sep-dot{opacity:1}
.slabel{font-size:9px;font-weight:500;color:var(--gris);letter-spacing:.14em;text-transform:uppercase;margin-bottom:16px;padding-bottom:8px;border-bottom:.5px solid var(--borde)}
p{font-size:14px;font-weight:300;color:var(--gris);line-height:1.85;max-width:none;margin-bottom:16px}
p strong{color:var(--negro);font-weight:500}
.chapter-label{font-size:9px;font-weight:500;color:var(--azul-desc);letter-spacing:.2em;text-transform:uppercase;margin-bottom:8px;padding-bottom:8px;border-bottom:.5px solid var(--borde)}
.chapter-title{font-family:var(--serif);font-size:clamp(28px,3vw,38px);font-weight:400;color:var(--negro);line-height:1.1;margin-bottom:12px}
.chapter-title em{font-style:italic}

/* PULLQUOTE */
.pullquote{border-left:2px solid var(--azul);padding:4px 0 4px 20px;margin:28px 0}
.pullquote-text{font-family:var(--serif);font-size:22px;font-style:italic;font-weight:400;color:var(--azul);line-height:1.5;margin:0;max-width:600px}
.pullquote-source{font-size:11px;font-weight:400;color:var(--gris);letter-spacing:.06em;margin-top:8px}

/* NÚCLEO QS — Propósito, PdV, Posicionamiento, Negación */
.nucleo-qs-grid{display:grid;grid-template-columns:1fr 1fr;gap:2px;background:#3a3a3a;border:.5px solid #3a3a3a;border-radius:10px;overflow:hidden;margin-top:28px}
.nucleo-qs-item{background:var(--negro);padding:28px 30px;border-left:5px solid transparent;transition:background .25s}
.nucleo-qs-item:hover{background:#1e1e1e}
.nucleo-qs-proposito{border-left-color:#1F4E79}
.nucleo-qs-pdv{border-left-color:#3B82C4}
.nucleo-qs-pos{border-left-color:#A0714F}
.nucleo-qs-neg{border-left-color:#D07070}
.nucleo-qs-label{font-size:9px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:rgba(255,255,255,.3);margin-bottom:10px}
.nucleo-qs-text{font-family:var(--serif);font-size:17px;font-weight:400;color:rgba(255,255,255,.75);line-height:1.55}
.nucleo-qs-text strong{font-weight:400;color:var(--blanco)}
.mv-grid{display:grid;grid-template-columns:1fr 1fr;gap:2px;background:#3a3a3a;border:.5px solid #3a3a3a;border-radius:10px;overflow:hidden;margin-top:24px}
.mv-card{background:var(--negro);padding:24px 28px;border-top:4px solid transparent;transition:background .25s}
.mv-card:hover{background:#1e1e1e}
.mv-card:nth-child(1){border-top-color:#3B82C4}
.mv-card:nth-child(2){border-top-color:#A0714F}
.mv-card-label{font-size:9px;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:rgba(255,255,255,.3);margin-bottom:8px}
.mv-card-text{font-family:var(--serif);font-size:18px;font-weight:400;color:rgba(255,255,255,.8);line-height:1.4}
.mv-card-text em{font-style:italic;color:rgba(255,255,255,.45)}

/* PRINCIPIOS — con línea izquierda de color */
.principios{display:flex;flex-direction:column}
.principio{padding:18px 0 18px 16px;border-bottom:.5px solid var(--borde);border-left:4px solid transparent;display:grid;grid-template-columns:220px 1fr;gap:2rem;transition:background .25s;border-radius:0 4px 4px 0}
.principio:first-child{border-top:.5px solid var(--borde)}
.principio:hover{background:rgba(31,78,121,.04)}
.principio:nth-child(1){border-left-color:#1F4E79}
.principio:nth-child(2){border-left-color:#3B82C4}
.principio:nth-child(3){border-left-color:#A0714F}
.principio:nth-child(4){border-left-color:#4E7B62}
.principio:nth-child(5){border-left-color:#7B6B9E}
.principio-name{font-size:13px;font-weight:500;color:var(--negro)}
.principio-desc{font-size:13px;font-weight:300;color:var(--gris);line-height:1.7;max-width:none;margin:0}

/* NEGACIÓN */
.negacion{background:var(--negro);border-radius:10px;padding:32px 36px;position:relative;overflow:hidden}
.negacion::before{content:'';position:absolute;left:20px;top:24px;bottom:24px;width:1.5px;background:rgba(255,255,255,.08)}
.negacion-label{font-size:9px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:rgba(255,255,255,.25);margin-bottom:12px}
.negacion-text{font-family:var(--serif);font-size:20px;font-weight:400;font-style:italic;color:rgba(255,255,255,.75);line-height:1.55;max-width:640px}

/* FUNDADOR */
.fundador{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:start;margin-top:8px}
.fundador-foto{border-radius:10px;aspect-ratio:3/4;overflow:hidden;position:relative;background:var(--niebla);border:.5px solid rgba(31,78,121,.15)}
.fundador-foto img.foto-real{width:100%;height:100%;object-fit:cover;object-position:center top;position:absolute;inset:0}
.fundador-foto-placeholder{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2rem;text-align:center}
.fundador-foto-label{font-size:9px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--azul-desc);margin-bottom:8px}
.fundador-foto-sub{font-size:12px;font-weight:300;color:var(--azul);line-height:1.65;max-width:180px;margin:0}
.fundador-nombre{font-family:var(--serif);font-size:26px;font-weight:400;color:var(--negro);margin-bottom:4px}
.fundador-rol{font-size:10px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--gris);margin-bottom:24px}

/* BLOQUE DE IMPACTO — negro con líneas de color */
.impacto{background:var(--negro);padding:64px 96px;position:relative;overflow:hidden}
.impacto::before{content:'';position:absolute;left:48px;top:48px;bottom:48px;width:1.5px;background:rgba(255,255,255,.06)}
.impacto-label{font-size:9px;font-weight:500;color:rgba(255,255,255,.25);letter-spacing:.22em;text-transform:uppercase;margin-bottom:16px}
.impacto-title{font-family:var(--serif);font-size:clamp(28px,3vw,38px);font-weight:400;font-style:italic;color:var(--blanco);margin-bottom:40px;line-height:1.2}
.impacto-list{list-style:none;display:flex;flex-direction:column;max-width:640px}
.impacto-item{display:flex;align-items:baseline;gap:16px;padding:13px 0 13px 14px;border-bottom:.5px solid rgba(255,255,255,.07);border-left:4px solid transparent;transition:background .2s;border-radius:0 4px 4px 0}
.impacto-item:first-child{border-top:.5px solid rgba(255,255,255,.07)}
.impacto-item:hover{background:rgba(255,255,255,.03)}
.impacto-item:nth-child(1){border-left-color:#3B82C4}
.impacto-item:nth-child(2){border-left-color:#5BA8F5}
.impacto-item:nth-child(3){border-left-color:#C49A5A}
.impacto-item:nth-child(4){border-left-color:#6AAF8A}
.impacto-item:nth-child(5){border-left-color:#9B8FC4}
.impacto-item:nth-child(6){border-left-color:#C49A5A}
.impacto-item:nth-child(7){border-left-color:#5BA8F5}
.impacto-item:nth-child(8){border-left-color:#D07070}
.impacto-item:nth-child(9){border-left-color:#6AAF8A}
.impacto-item:nth-child(10){border-left-color:#3B82C4}
.impacto-item:nth-child(11){border-left-color:#9B8FC4}
.impacto-verb{font-family:var(--serif);font-size:20px;font-style:italic;font-weight:400;color:var(--blanco);min-width:140px;flex-shrink:0}
.impacto-noun{font-size:14px;font-weight:300;color:rgba(255,255,255,.4)}
.impacto-close{margin-top:32px;font-size:13px;font-weight:300;color:rgba(255,255,255,.25);line-height:1.7;max-width:520px}

/* ICONOS EN SECCIONES OSCURAS — derecha, grande */
.dark-icon{
  position:absolute;
  right:48px;top:50%;
  transform:translateY(-50%);
  width:220px;height:220px;
  pointer-events:none;
  z-index:10;
  animation:iconFloat 7s ease-in-out infinite;
}
.dark-icon img{width:100%;height:100%;object-fit:contain}

/* Icono en el borde entre secciones */
.border-icon-wrap{
  position:relative;
  height:0;
  z-index:10;
  display:flex;justify-content:center;
}
.border-icon{
  position:absolute;
  top:-80px;
  width:160px;height:160px;
  pointer-events:none;
  animation:iconFloat 7s ease-in-out infinite;
  animation-delay:-3s;
}
.border-icon img{width:100%;height:100%;object-fit:contain}
@keyframes iconFloat{0%,100%{transform:translateY(-50%) rotate(0deg)}33%{transform:translateY(calc(-50% - 10px)) rotate(1.5deg)}66%{transform:translateY(calc(-50% - 5px)) rotate(-1deg)}}
.chapter-label,.chapter-title,.pullquote,.principios,p{position:relative;z-index:1}

/* FADE ANIMATIONS */
.fade-up{opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s ease}
.fade-up.visible{opacity:1;transform:translateY(0)}

/* FOOTER */
.footer{background:var(--negro);padding:48px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:24px}
.footer-logo{display:flex;flex-direction:column;gap:6px}
.footer-logo-img{height:56px;width:auto;opacity:.9}
.footer-logo span{font-family:var(--sans);font-size:8px;letter-spacing:.18em;text-transform:uppercase;color:rgba(255,255,255,.25)}
.footer-links{display:flex;gap:24px;list-style:none;flex-wrap:wrap}
.footer-links a{font-size:10px;font-weight:400;letter-spacing:.08em;text-transform:uppercase;color:rgba(255,255,255,.32);transition:color .2s}
.footer-links a:hover{color:rgba(255,255,255,.75)}
.footer-meta{font-size:9px;font-weight:300;color:rgba(255,255,255,.18);letter-spacing:.06em}

/* BTN */
.btn{display:inline-flex;align-items:center;gap:6px;padding:10px 22px;border-radius:3px;font-family:var(--sans);font-size:10px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;cursor:pointer;border:none;transition:all .2s}
.btn-azul{background:var(--azul);color:var(--blanco)}
.btn-azul:hover{background:#163a5e;transform:translateY(-1px)}
.btn-ghost-dark{background:transparent;color:var(--azul);border:.5px solid var(--azul);transition:all .2s}
.btn-ghost-dark:hover{background:var(--azul);color:var(--blanco);transform:translateY(-1px)}

/* RESPONSIVE */
@media(max-width:900px){
  .nav{padding:0 24px}
  .page-header{padding:100px 48px 56px}
  .page-header::before{left:24px}
  .main,.main--narrow{padding:56px 32px}
  .principio{grid-template-columns:1fr;gap:.5rem}
  .fundador{grid-template-columns:1fr}
  .fundador-foto{max-height:400px;aspect-ratio:unset}
  .impacto{padding:48px 48px}
  .impacto::before{left:24px}
  .mv-grid{grid-template-columns:1fr}
  .nucleo-qs-grid{grid-template-columns:1fr}
}
@media(max-width:640px){
  .nav{padding:0 20px}
  .nav-links{display:none}
  .nav-links.open{display:flex;flex-direction:column;position:absolute;top:52px;left:0;right:0;background:rgba(253,250,247,.98);border-bottom:.5px solid var(--borde);padding:20px 24px;gap:16px}
  .nav-burger{display:flex}
  .main,.main--narrow{padding:48px 20px}
  .impacto{padding:64px 24px 48px;overflow:visible}
  .footer{padding:32px 24px;flex-direction:column;align-items:flex-start}
  .negacion{padding:24px 20px}
  .page-header{padding:88px 24px 185px;padding-left:52px}

  /* Icono de arriba — debajo del texto, centrado */
  .page-header .dark-icon{
    width:90px;height:90px;
    right:auto;
    left:0;right:0;
    margin:auto;
    top:auto;
    bottom:56px;
    transform:none;
  }

  /* Icono de abajo — borde superior del impacto, centrado */
  .impacto .dark-icon{
    width:90px;height:90px;
    left:0;right:0;
    margin:auto;
    top:-45px;
    transform:none;
  }
}