/* Integral Mayor - hoja de estilos principal */
@font-face{
  font-family:"Montserrat";
  src:url("/fonts/montserrat-latin.woff2") format("woff2");
  font-weight:400 700;
  font-style:normal;
  font-display:swap;
}

:root{
  --verde:#1B3C35;
  --salvia:#6F8F7B;
  --claro:#DCE5DE;
  --terracota:#D98B5B;
  --arena:#F5F3EE;
  --tinte:#EEF2EE;
  --texto:#3E4D48;
  --borde:#E1E7E2;
  --radio:14px;
  --header-h:80px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 12px)}
body{
  margin:0;
  font-family:"Montserrat",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  font-size:1rem;
  line-height:1.6;
  color:var(--texto);
  background:var(--arena);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,p{margin:0}
a{color:inherit}
.container{width:min(1200px,100% - 48px);margin-inline:auto}
.icon{width:1.15em;height:1.15em;flex:none}

.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;
}
.skip-link{
  position:absolute;left:12px;top:-60px;z-index:100;
  background:var(--verde);color:#fff;padding:10px 16px;border-radius:8px;text-decoration:none;font-weight:600;
}
.skip-link:focus{top:12px}
:focus-visible{outline:3px solid var(--terracota);outline-offset:3px;border-radius:6px}

.eyebrow{
  font-size:.78rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--verde);
}

/* Botones */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:16px 26px;border-radius:999px;border:1.5px solid var(--verde);
  font:600 .95rem/1 "Montserrat",sans-serif;text-decoration:none;
  transition:background-color .2s,color .2s,transform .2s;
}
.btn--primary{background:var(--verde);color:#fff}
.btn--primary:hover{background:#244b42}
.btn--ghost{background:transparent;color:var(--verde)}
.btn--ghost:hover{background:var(--verde);color:#fff}
.btn--sm{padding:11px 18px;font-size:.8rem}
.btn .icon{transition:transform .2s}
.btn:hover .icon{transform:translateX(3px)}

/* Header */
.site-header{
  position:sticky;top:0;z-index:50;height:var(--header-h);
  background:var(--arena);border-bottom:1px solid transparent;
  transition:border-color .2s,box-shadow .2s;
}
.site-header.is-scrolled{border-color:var(--borde);box-shadow:0 4px 18px rgba(27,60,53,.06)}
.header__inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
.header__logo{display:block;flex:none}
.header__logo img{width:132px;height:52px}
.site-nav{display:flex;align-items:center;gap:36px;margin-left:auto}
.site-nav ul{display:flex;gap:34px}
.site-nav ul a{
  position:relative;display:inline-block;padding:8px 0;
  font-size:.86rem;font-weight:600;color:var(--verde);text-decoration:none;
}
.site-nav ul a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--verde);
  transform:scaleX(0);transform-origin:left;transition:transform .2s;
}
.site-nav ul a:hover::after,.site-nav ul a[aria-current="page"]::after{transform:scaleX(1)}
.nav-toggle{
  display:none;width:44px;height:44px;border:0;background:transparent;color:var(--verde);
  align-items:center;justify-content:center;border-radius:10px;cursor:pointer;
}
.nav-toggle .icon{width:26px;height:26px}
.nav-toggle .icon--close{display:none}
.nav-toggle[aria-expanded="true"] .icon--open{display:none}
.nav-toggle[aria-expanded="true"] .icon--close{display:block}

/* Hero */
.hero{
  position:relative;display:flex;align-items:center;
  min-height:clamp(480px,40vw,600px);overflow:hidden;background:var(--arena);
}
.hero__img{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;object-position:62% 46%;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(90deg,rgba(245,243,238,.94) 0%,rgba(245,243,238,.8) 34%,rgba(245,243,238,0) 62%);
}
.hero__body{position:relative;z-index:2;padding-block:64px}
.hero__body > *{max-width:560px}
.hero__body > h1{max-width:9.6em}
.hero h1{
  margin:16px 0 22px;
  font-size:clamp(2.1rem,4.2vw,3.4rem);line-height:1.08;letter-spacing:-.015em;
  font-weight:700;color:var(--verde);
}
.hero__lead{font-size:1rem;line-height:1.65;color:var(--texto);margin-bottom:30px}

/* Pilares */
.pillars{background:var(--tinte);border-block:1px solid var(--borde)}
.pillars__list{display:grid;grid-template-columns:repeat(6,1fr);padding-block:34px}
.pillars__list li{
  display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px;
  padding:4px 18px;border-left:1px solid #D3DCD5;
}
.pillars__list li:first-child{border-left:0}
.pillars__icon{
  display:grid;place-items:center;width:54px;height:54px;border-radius:50%;
  background:var(--claro);color:var(--verde);margin-bottom:8px;
}
.pillars__icon .icon{width:26px;height:26px}
.pillars h3{font-size:.92rem;font-weight:700;color:var(--verde)}
.pillars p{font-size:.8rem;line-height:1.5;color:#5A6862}

/* Proyectos */
.projects{padding-block:68px 56px}
.projects h2{
  margin:8px 0 12px;font-size:clamp(1.7rem,3vw,2.1rem);line-height:1.15;
  font-weight:700;color:var(--verde);letter-spacing:-.01em;
}
.projects__intro{max-width:560px;font-size:.95rem;color:var(--texto)}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:36px}
.card{
  position:relative;display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--borde);border-radius:var(--radio);overflow:hidden;
  transition:transform .2s,box-shadow .2s,border-color .2s;
}
.card:hover,.card:focus-within{transform:translateY(-3px);box-shadow:0 14px 30px rgba(27,60,53,.1);border-color:#CBD6CE}
.card__img{width:100%;height:auto;padding:12px 12px 0;aspect-ratio:640/363;object-fit:cover}
.card__body{display:flex;flex-direction:column;gap:10px;flex:1;padding:18px 20px 20px}
.card__logo{display:flex;align-items:center;height:44px;margin:0}
.card__logo img{width:auto;max-width:100%}
.logo--sam{height:32px}
.logo--gm{height:44px}
.logo--ef{height:24px}
.logo--aam{height:34px}
.card__body p{font-size:.88rem;line-height:1.5;color:var(--texto);flex:1}
.card__link{
  display:inline-flex;align-items:center;gap:8px;margin-top:6px;
  font-size:.86rem;font-weight:700;color:var(--verde);text-decoration:none;
}
.card__link::after{content:"";position:absolute;inset:0}
.card__link .icon{transition:transform .2s}
.card:hover .card__link .icon{transform:translateX(4px)}
.card:hover .card__link{text-decoration:underline;text-underline-offset:4px}

/* Propósito */
.purpose{padding-bottom:72px}
.purpose__box{
  position:relative;overflow:hidden;display:grid;
  grid-template-columns:auto 1fr auto;align-items:center;gap:32px;
  padding:30px 44px;background:#E6EDE7;border:1px solid var(--borde);border-radius:var(--radio);
}
.purpose__box::before,.purpose__box::after{
  content:"";position:absolute;pointer-events:none;border-radius:0 100% 0 100%;
}
.purpose__box::before{right:-14px;bottom:-26px;width:92px;height:92px;background:var(--salvia);transform:rotate(8deg);opacity:.9}
.purpose__box::after{right:62px;bottom:-34px;width:78px;height:78px;background:#B9CCBF;transform:rotate(-12deg);opacity:.85}
.purpose__logo{width:150px;height:auto;padding-right:32px;border-right:1px solid #C3D0C6;box-sizing:content-box}
.purpose__text{
  font-size:1rem;font-weight:500;line-height:1.45;color:var(--texto);
}
.purpose__text strong{display:block;font-size:1.3rem;font-weight:700;color:var(--verde);margin-top:2px}
.purpose .btn{position:relative;z-index:1;margin-right:96px;background:#fff;white-space:nowrap}
.purpose .btn:hover{background:var(--verde)}

/* Footer */
.site-footer{background:var(--verde);color:#CFDBD3;padding-top:52px}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;padding-bottom:40px}
.footer__brand img{width:132px;height:52px}
.footer__tagline{
  margin-top:16px;max-width:240px;font-size:.7rem;font-weight:600;letter-spacing:.14em;
  text-transform:uppercase;line-height:1.7;color:#9FB5A9;
}
.footer__col h2{font-size:.82rem;font-weight:700;color:#fff;margin-bottom:14px}
.footer__col li+li{margin-top:9px}
.footer__col a{font-size:.8rem;color:#CFDBD3;text-decoration:none}
.footer__col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer__bottom{
  display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;
  padding-block:20px;border-top:1px solid rgba(255,255,255,.14);font-size:.72rem;color:#9FB5A9;
}
.footer__bottom ul{display:flex;gap:22px;flex-wrap:wrap}
.footer__bottom a{color:#C5D3CA;text-decoration:none}
.footer__bottom a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}

/* Responsive */
@media (max-width:1100px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .pillars__list{grid-template-columns:repeat(3,1fr);row-gap:26px}
  .pillars__list li:nth-child(4){border-left:0}
  .purpose__box{grid-template-columns:minmax(0,1fr);gap:18px;padding:30px 28px 96px}
  .purpose__logo{padding:0 0 18px;border-right:0;border-bottom:1px solid #C3D0C6;width:150px}
  .purpose .btn{margin-right:0;justify-self:start;white-space:normal;max-width:100%;line-height:1.3}
}

@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:absolute;left:0;right:0;top:var(--header-h);
    flex-direction:column;align-items:stretch;gap:18px;
    padding:20px 24px 26px;background:var(--arena);
    border-bottom:1px solid var(--borde);box-shadow:0 14px 24px rgba(27,60,53,.08);
    display:none;
  }
  .site-nav.is-open{display:flex}
  .site-nav ul{flex-direction:column;gap:2px}
  .site-nav ul a{display:block;padding:12px 0;font-size:1rem}
  .site-nav .btn{justify-content:center}
}

@media (max-width:820px){
  .hero{flex-direction:column;align-items:stretch;min-height:0}
  .hero::after{display:none}
  .hero__body{padding-block:40px 30px}
  .hero__body > *{max-width:none}
  .hero__img{
    position:static;order:2;width:100%;height:auto;aspect-ratio:4/3;
    object-position:60% 40%;
  }
  .footer__grid{grid-template-columns:1fr 1fr}
  .footer__brand{grid-column:1 / -1}
}

@media (max-width:600px){
  .container{width:min(1200px,100% - 40px)}
  .cards{grid-template-columns:1fr}
  .pillars__list{grid-template-columns:repeat(2,1fr)}
  .pillars__list li{border-left:0;padding-inline:8px}
  .projects{padding-block:52px 44px}
  .footer__bottom{flex-direction:column;align-items:flex-start}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none !important}
}