:root{
  --blue:#0868a8;
  --blue-dark:#073b60;
  --blue-soft:#0f7db8;
  --text:#18354e;
  --muted:#5d7183;
  --line:#dfe7ed;
  --light:#f7f9fb;
  --max:1280px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:Inter,Arial,Helvetica,sans-serif;
  color:var(--text);
  background:#fff;
  line-height:1.5;
}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
.container{width:min(var(--max),92%);margin:auto}

/* HEADER */
.header{
  height:78px;
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid #e7edf1;
}
.nav{
  height:100%;
  display:flex;
  align-items:center;
  gap:26px;
}
.logo{
  width:150px;
  height:auto;
  object-fit:contain;
  flex:none;
}
.nav-links{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:27px;
  margin-left:auto;
  height:100%;
  color:#344b60;
  font-size:14px;
}
.nav-links a{
  height:100%;
  display:flex;
  align-items:center;
  position:relative;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  right:100%;
  bottom:12px;
  height:2px;
  background:var(--blue);
  transition:.2s;
}
.nav-links a:hover::after,
.nav-links a.active::after{right:0}
.contact-btn{
  margin-left:2px;
  padding:12px 23px;
  border-radius:28px;
  background:var(--blue);
  color:white!important;
  font-weight:700;
}
.contact-btn::after{display:none!important}
.menu-btn{display:none}

/* HERO */
.hero{
  position:relative;
  height:590px;
  overflow:hidden;
}
.hero-image{
  position:absolute;
  inset:0;
  background-image:url("../img/hero-grupoait.jpg");
  background-size:cover;
  background-position:center center;
}
.hero-overlay{
  position:absolute;
  inset:0;
  background:
    linear-gradient(90deg,
      rgba(255,255,255,1) 0%,
      rgba(255,255,255,.98) 29%,
      rgba(255,255,255,.78) 43%,
      rgba(255,255,255,.20) 62%,
      rgba(255,255,255,0) 78%);
}
.hero-content{
  position:relative;
  z-index:2;
  height:100%;
  display:flex;
  align-items:center;
}
.hero-copy{width:67%;padding-bottom:18px}
.eyebrow{
  color:var(--blue);
  text-transform:uppercase;
  letter-spacing:.34em;
  font-size:12px;
  font-weight:800;
  margin-bottom:20px;
}
.hero h1{
  color:#073453;
  font-size:clamp(48px,5.1vw,76px);
  line-height:.99;
  letter-spacing:-3.2px;
  font-weight:650;
  max-width:800px;
}
.hero h1 span{
  display:block;
  color:#607181;
}
.hero-description{
  margin-top:22px;
  max-width:620px;
  color:#53697c;
  font-size:18px;
}
.buttons{
  display:flex;
  gap:12px;
  margin-top:25px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:13px 25px;
  border-radius:28px;
  border:1px solid var(--blue);
  font-size:14px;
  font-weight:700;
}
.btn-primary{background:var(--blue);color:#fff}
.btn-outline{background:#fff;color:var(--blue)}
.hero-keywords{
  display:flex;
  align-items:center;
  margin-top:31px;
  padding-top:15px;
  border-top:2px solid var(--blue);
  max-width:590px;
}
.hero-keywords span{
  color:#5a6e80;
  font-size:13px;
  padding:0 17px;
  border-right:1px solid #bdc8d1;
}
.hero-keywords span:first-child{padding-left:0}
.hero-keywords span:last-child{border:0}

/* White right-side statement */
.hero-message{
  position:absolute;
  right:7%;
  top:42px;
  z-index:3;
  color:#fff;
  max-width:260px;
  border-left:2px solid rgba(255,255,255,.95);
  padding-left:19px;
  font-size:19px;
  line-height:1.42;
  text-shadow:0 2px 12px rgba(0,0,0,.24);
}

/* AREAS */
.section{padding:76px 0}
.section-light{background:#f8fafc}
.section-header{text-align:center;max-width:850px;margin:0 auto 37px}
.section-header .eyebrow{margin-bottom:10px}
.section-header h2{
  color:#0b3f66;
  font-size:36px;
  line-height:1.15;
  font-weight:520;
  letter-spacing:-1.3px;
}
.section-header p{color:var(--muted);font-size:15px;margin-top:12px}
.areas{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
}
.area{
  background:white;
  border:1px solid var(--line);
  border-radius:7px;
  overflow:hidden;
  box-shadow:0 7px 23px rgba(8,54,85,.07);
}
.area-image{
  width:100%;
  height:126px;
  object-fit:cover;
}
.area-body{
  position:relative;
  padding:24px 20px 20px;
  min-height:154px;
}
.area-icon{
  width:48px;height:48px;border-radius:50%;
  position:absolute;top:-25px;left:16px;
  background:var(--blue);
  color:#fff;
  border:4px solid #fff;
  display:grid;place-items:center;
  font-size:21px;
}
.area h3{
  padding-top:13px;
  font-size:16px;
  line-height:1.2;
  color:#0b3f66;
}
.area p{
  margin-top:8px;
  color:#53697c;
  font-size:13px;
  line-height:1.38;
}
.area-link{
  display:inline-block;
  margin-top:13px;
  color:#006bb2;
  font-size:13px;
  font-weight:700;
}

/* VALUE STRIP */
.values{
  padding:28px 0;
  background:#fff;
}
.value-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
}
.value{
  padding:5px 27px;
  border-right:1px solid var(--line);
}
.value:last-child{border:0}
.value strong{display:block;color:#0b3f66;font-size:15px}
.value span{font-size:13px;color:#71818f}

/* MOUNTAIN BAND */
.mountain{
  min-height:205px;
  color:#fff;
  background:
    linear-gradient(90deg,rgba(5,42,70,.80),rgba(5,42,70,.34)),
    url("../img/hero-grupoait.jpg") center 66%/cover no-repeat;
}
.mountain-inner{
  min-height:205px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
}
.quote{
  font-size:20px;
  line-height:1.3;
  font-weight:550;
}
.quote small{
  display:block;
  margin-top:15px;
  font-size:10px;
  letter-spacing:.28em;
  opacity:.82;
}
.stats{display:flex;gap:31px}
.stat{
  min-width:120px;
  padding-left:21px;
  border-left:1px solid rgba(255,255,255,.55);
  text-align:center;
}
.stat strong{display:block;font-size:28px;font-weight:520}
.stat span{font-size:11px;opacity:.88}

/* ACADEMIC */
.academic{padding:72px 0}
.academic .section-header{margin-bottom:0}

/* CTA */
.cta{
  padding:35px 0 40px;
  text-align:center;
  border-top:1px solid #edf1f4;
}
.cta .eyebrow{margin-bottom:7px}
.cta h2{
  color:#0b3f66;
  font-size:30px;
  font-weight:520;
}
.cta p{color:var(--muted);font-size:13px;margin:6px auto 18px}
.cta .btn{padding:11px 25px}

/* FOOTER */
.footer{
  background:#063452;
  color:#fff;
}
.footer-main{
  min-height:92px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:30px;
}
.footer-logo{width:122px}
.footer-center{
  display:flex;
  align-items:center;
  gap:17px;
  flex-wrap:wrap;
  font-size:12px;
}
.footer-center a:hover{color:#bfe7fa}
.footer-contact{font-size:12px;display:flex;align-items:center;gap:10px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.16);
  padding:13px 0;
  display:flex;
  justify-content:space-between;
  gap:20px;
  color:#a9bfce;
  font-size:10px;
}

/* INNER PAGES */
.page-hero{
  padding:92px 0 66px;
  background:linear-gradient(135deg,#f7fafc,#edf5f9);
}
.page-hero h1{
  color:#0a3c61;
  font-size:clamp(42px,5vw,68px);
  line-height:1.04;
  letter-spacing:-2px;
  font-weight:600;
  max-width:900px;
}
.page-hero p{max-width:740px;color:var(--muted);font-size:17px;margin-top:17px}
.content-section{padding:75px 0}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:45px}
.info-card{padding:28px;border:1px solid var(--line);border-radius:14px;background:#fff}
.info-card h3{color:#0b3f66;margin-bottom:8px}
.info-card p{color:var(--muted);font-size:14px}
.list{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.list-item{padding:25px;border:1px solid var(--line);border-radius:13px}
.list-item h3{color:#0b3f66;font-size:17px}.list-item p{color:var(--muted);font-size:13px;margin-top:6px}

/* RESPONSIVE */
@media(max-width:1050px){
  .nav-links{gap:16px;font-size:12px}
  .logo{width:125px}
  .areas{grid-template-columns:repeat(2,1fr)}
  .hero-copy{width:74%}
  .hero-message{right:4%;max-width:220px}
  .mountain-inner{flex-direction:column;align-items:flex-start;padding:38px 0}
  .mountain,.mountain-inner{min-height:300px}
}
@media(max-width:760px){
  .header{height:68px}
  .nav{position:relative}
  .logo{width:112px}
  .menu-btn{
    display:block;margin-left:auto;border:0;background:none;
    color:var(--blue-dark);font-size:24px;cursor:pointer
  }
  .nav-links{
    display:none;
    position:absolute;left:0;right:0;top:68px;
    background:#fff;height:auto;padding:8px 5%;
    flex-direction:column;align-items:flex-start;gap:0;
    border-bottom:1px solid var(--line);
  }
  .nav-links.open{display:flex}
  .nav-links a{height:auto;padding:11px 0;width:100%}
  .nav-links a::after{bottom:5px}
  .contact-btn{margin:6px 0;padding:10px 17px}
  .hero{height:720px}
  .hero-image{inset:45% 0 0}
  .hero-overlay{background:linear-gradient(180deg,rgba(255,255,255,1) 0%,rgba(255,255,255,.95) 45%,rgba(255,255,255,.08) 76%)}
  .hero-content{align-items:flex-start;padding-top:65px}
  .hero-copy{width:100%}
  .hero h1{font-size:44px;letter-spacing:-2px}
  .hero-description{font-size:16px}
  .hero-message{display:none}
  .hero-keywords{border-top:0;flex-wrap:wrap;gap:7px;margin-top:25px}
  .hero-keywords span{padding-right:10px}
  .areas,.list,.two-col{grid-template-columns:1fr}
  .value-grid{grid-template-columns:1fr 1fr}
  .value{border-right:0;border-bottom:1px solid var(--line);padding:13px 10px}
  .value:nth-last-child(-n+2){border-bottom:0}
  .stats{width:100%;flex-wrap:wrap;gap:15px}
  .stat{flex:1 1 30%;min-width:90px}
  .footer-main,.footer-bottom{flex-direction:column;align-items:flex-start}
  .footer-main{padding:27px 0}
}


/* FORMULARIO DE CONTACTO */
.contact-layout{
  display:grid;
  grid-template-columns:.82fr 1.18fr;
  gap:55px;
  align-items:start;
}
.contact-intro{
  padding-top:10px;
}
.contact-intro h2{
  color:var(--blue-dark);
  font-size:38px;
  line-height:1.12;
  letter-spacing:-1.2px;
  font-weight:560;
  max-width:470px;
}
.contact-intro>p{
  color:var(--muted);
  font-size:15px;
  max-width:500px;
  margin-top:18px;
}
.contact-detail{
  display:flex;
  flex-direction:column;
  gap:2px;
  margin-top:25px;
  padding-left:17px;
  border-left:2px solid var(--blue);
}
.contact-detail strong{
  color:var(--blue-dark);
  font-size:13px;
}
.contact-detail span,
.contact-detail a{
  color:var(--muted);
  font-size:13px;
}
.contact-detail a{
  color:var(--blue);
  font-weight:650;
}
.contact-form-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  padding:32px;
  box-shadow:0 12px 35px rgba(8,54,85,.08);
}
.form-title{
  margin-bottom:25px;
}
.form-title h3{
  color:var(--blue-dark);
  font-size:25px;
  font-weight:560;
}
.form-title p{
  color:var(--muted);
  font-size:12px;
  margin-top:4px;
}
.form-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:17px;
}
.form-group{
  margin-bottom:18px;
}
.form-group label{
  display:block;
  color:var(--blue-dark);
  font-size:13px;
  font-weight:700;
  margin-bottom:7px;
}
.form-group input,
.form-group textarea{
  width:100%;
  border:1px solid #cfdbe3;
  border-radius:8px;
  padding:12px 13px;
  font:inherit;
  font-size:14px;
  color:var(--text);
  background:#fff;
  outline:none;
  transition:border-color .2s,box-shadow .2s;
}
.form-group textarea{
  resize:vertical;
  min-height:150px;
}
.form-group input::placeholder,
.form-group textarea::placeholder{
  color:#9aa8b3;
}
.form-group input:focus,
.form-group textarea:focus{
  border-color:var(--blue);
  box-shadow:0 0 0 3px rgba(8,104,168,.10);
}
.form-submit{
  border:0;
  cursor:pointer;
  min-width:190px;
}
.form-note{
  color:#7a8995;
  font-size:11px;
  line-height:1.45;
  margin-top:13px;
  max-width:530px;
}

@media(max-width:850px){
  .contact-layout{
    grid-template-columns:1fr;
    gap:35px;
  }
}
@media(max-width:600px){
  .contact-form-card{padding:23px 18px}
  .form-row{grid-template-columns:1fr;gap:0}
  .contact-intro h2{font-size:31px}
}