:root{
  --bg:#f7f7f3;
  --paper:#fbfbf8;
  --ink:#16191d;
  --muted:#666c73;
  --line:#d9dcd8;
  --blue:#1487c9;
  --blue-dark:#0c5f91;
  --max:1220px;
  --radius:0px;
  --roboto:"Roboto",sans-serif;
  --sans:Arial,Helvetica,sans-serif;
}

*{
  box-sizing:border-box;
}

html{
  scroll-behavior:smooth;
}

body{
  margin:0;
  color:var(--ink);
  background:
    linear-gradient(rgba(22,25,29,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(22,25,29,.045) 1px, transparent 1px),
    var(--bg);
  background-size:48px 48px;
  font-family:var(--sans);
  line-height:1.45;
}

img{
  max-width:100%;
  display:block;
}

a{
  color:inherit;
  text-decoration:none;
}

button,
input,
select,
textarea{
  font:inherit;
}

.container{
  width:min(calc(100% - 40px),var(--max));
  margin:auto;
}

.section{
  padding:92px 0;
  border-top:1px solid var(--line);
}

.section-tight{
  padding:56px 0;
  border-top:1px solid var(--line);
}

.eyebrow{
  font:700 12px/1 var(--roboto);
  text-transform:uppercase;
  letter-spacing:.08em;
  color:var(--blue);
  margin-bottom:18px;
}

h1,
h2,
h3,
p{
  margin-top:0;
}

h1{
  font-size:clamp(52px,8vw,112px);
  line-height:.92;
  letter-spacing:-.055em;
  font-weight:500;
  max-width:1050px;
  margin-bottom:30px;
}

h2{
  font-size:clamp(34px,5vw,66px);
  line-height:1;
  letter-spacing:-.045em;
  font-weight:500;
  margin-bottom:18px;
}

h3{
  font-size:25px;
  line-height:1.08;
  letter-spacing:-.025em;
  font-weight:500;
}

.lead{
  font-size:clamp(18px,2vw,23px);
  color:#343940;
  max-width:760px;
}

.small{
  font:400 13px/1.55 var(--roboto);
  color:var(--muted);
}

.muted{
  color:var(--muted);
}

/* =========================
   HEADER
========================= */

.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(247,247,243,.94);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}

.header-row{
  min-height:78px;
  display:flex;
  align-items:center;
  gap:34px;
}

.logo img{
  width:150px;
  max-height:46px;
  object-fit:contain;
}

.nav{
  margin-left:auto;
  display:flex;
  gap:28px;
  align-items:center;
  font:600 13px/1 var(--roboto);
}

.nav a{
  padding:10px 0;
}

.nav a:hover,
.nav a.active{
  color:var(--blue);
}

.header-cta,
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:46px;
  padding:0 20px;
  border:1px solid var(--ink);
  background:var(--ink);
  color:white;
  font:700 12px/1 var(--roboto);
  text-transform:uppercase;
  letter-spacing:.04em;
  transition:.2s ease;
}

.btn:hover,
.header-cta:hover{
  background:var(--blue);
  border-color:var(--blue);
}

.btn.secondary{
  background:transparent;
  color:var(--ink);
}

.btn.secondary:hover{
  background:var(--ink);
  color:white;
}

.btn.blue{
  background:var(--blue);
  border-color:var(--blue);
}

.cta-row{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}

/* =========================
   HERO
========================= */

.hero{
  position:relative;
  padding:120px 0 100px;
  isolation:isolate;
}

/*
  Fondo desktop.
  El pseudo-elemento queda limitado al hero gracias
  a position:relative en .hero.
*/
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  background-image:url('assets/imagenes/hero.png');
  background-size:cover;
  background-position:center center;
  background-repeat:no-repeat;
  opacity:.55;
  z-index:-1;
}

.hero .lead{
  color:#000;
}

.hero .small{
  color:#000;
  font-weight:500;
}

.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.45fr) minmax(280px,.55fr);
  gap:48px;
  align-items:end;
}

.hero-side{
  border-left:1px solid var(--line);
  padding-left:30px;
  padding-bottom:12px;
}

.hero-side p{
  max-width:370px;
}

/* =========================
   CLIENTES / LOGOS
========================= */

.client-strip{
  padding:25px 0;
}

.client-title{
  text-align:center;
  font:700 12px/1 var(--roboto);
  margin-bottom:24px;
}

.logo-grid{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  gap:24px;
  align-items:center;
}

.logo-grid img{
  width:100%;
  height:42px;
  object-fit:contain;
  filter:grayscale(1);
  opacity:.78;
}

.logo-carousel{
  width:90vw;
  margin:0 auto;
  overflow:hidden;
  position:relative;
}

.logo-track{
  display:flex;
  width:max-content;
  align-items:center;
  gap:40px;
  animation:scroll-carousel 20s linear infinite;
}

.logo-track img{
  height:84px;
  object-fit:contain;
}

@keyframes scroll-carousel{
  0%{
    transform:translateX(0);
  }

  100%{
    transform:translateX(calc(-50% - 20px));
  }
}

/* =========================
   GRIDS / CARDS
========================= */

.grid-3{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}

.grid-4{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  border:1px solid var(--line);
}

.card{
  border:1px solid var(--line);
  background:rgba(255,255,255,.34);
  min-height:100%;
}

.card-body{
  padding:24px;
}

.card-media{
  aspect-ratio:4/3;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}

.card-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:.4s ease;
}

.card:hover .card-media img{
  transform:scale(1.025);
}

.card-index{
  font:700 12px/1 var(--roboto);
  color:var(--blue);
  margin-bottom:42px;
}

.card p{
  color:var(--muted);
}

.card-link{
  font:700 12px/1 var(--roboto);
  color:var(--blue);
}

/* =========================
   MÉTRICAS
========================= */

.metric{
  padding:30px;
  border-right:1px solid var(--line);
  min-height:170px;
}

.metric:last-child{
  border-right:0;
}

.metric strong{
  display:block;
  font-size:30px;
  font-weight:500;
  letter-spacing:-.04em;
  margin-bottom:28px;
}

.metric span{
  font:400 12px/1.45 var(--roboto);
  color:var(--muted);
}

/* =========================
   PROBLEMAS
========================= */

.problem-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--line);
  border-left:1px solid var(--line);
}

.problem{
  min-height:160px;
  padding:24px;
  border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
}

.problem b{
  display:block;
  color:var(--blue);
  font:700 12px/1 var(--roboto);
  margin-bottom:36px;
}

.problem span{
  font-size:22px;
  letter-spacing:-.02em;
}

/* =========================
   SPLIT
========================= */

.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0;
  border:1px solid var(--line);
}

.split-media{
  min-height:540px;
}

.split-media img{
  width:100%;
  height:100%;
  object-fit:cover;
}

.split-copy{
  padding:52px;
  display:flex;
  flex-direction:column;
  justify-content:center;
}

.inline-list{
  list-style:none;
  padding:0;
  margin:30px 0 0;
  display:grid;
  grid-template-columns:1fr 1fr;
  border-top:1px solid var(--line);
}

.inline-list li{
  font:400 13px/1.35 var(--roboto);
  padding:14px 0;
  border-bottom:1px solid var(--line);
}

/* =========================
   PROYECTOS
========================= */

.project-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}

.project .card-media{
  aspect-ratio:16/11;
}

/* =========================
   QUOTE
========================= */

.quote-block{
  padding:62px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.4);
}

.quote-block h2{
  max-width:860px;
}

.quote-block .lead{
  margin-bottom:32px;
}

/* =========================
   FAQ
========================= */

.faq{
  border-top:1px solid var(--line);
}

.faq-item{
  border-bottom:1px solid var(--line);
}

.faq-q{
  width:100%;
  border:0;
  background:transparent;
  padding:22px 0;
  display:flex;
  justify-content:space-between;
  text-align:left;
  cursor:pointer;
  color:var(--ink);
  font-size:17px;
}

.faq-a{
  display:none;
  padding:0 0 22px;
  max-width:850px;
  color:var(--muted);
}

.faq-item.open .faq-a{
  display:block;
}

/* =========================
   PAGE HERO
========================= */

.page-hero{
  padding:82px 0 70px;
}

.page-hero h1{
  font-size:clamp(48px,7vw,90px);
}

.breadcrumb{
  font:400 12px/1 var(--roboto);
  color:var(--muted);
  margin-bottom:34px;
}

/* =========================
   SERVICIOS
========================= */

.service-block{
  display:grid;
  grid-template-columns:.72fr 1.28fr;
  border-top:1px solid var(--line);
  padding:70px 0;
  gap:60px;
}

.service-label{
  position:sticky;
  top:110px;
  align-self:start;
}

.service-content .lead{
  margin-bottom:28px;
}

.service-content img{
  width:100%;
  aspect-ratio:16/8;
  object-fit:cover;
  margin:28px 0;
  border:1px solid var(--line);
}

.service-columns{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:36px;
}

.service-columns ul{
  margin:0;
  padding-left:18px;
  color:var(--muted);
}

.service-columns li{
  margin:8px 0;
}

/* =========================
   TIMELINE
========================= */

.timeline{
  border-left:1px solid var(--blue);
  margin-left:18px;
}

.timeline-row{
  position:relative;
  padding:0 0 44px 42px;
}

.timeline-row:before{
  content:"";
  position:absolute;
  left:-5px;
  top:5px;
  width:9px;
  height:9px;
  background:var(--blue);
}

.timeline-row b{
  font:700 12px/1 var(--roboto);
  color:var(--blue);
}

.timeline-row h3{
  margin:8px 0 8px;
}

/* =========================
   CONTACTO
========================= */

.contact-grid{
  display:grid;
  grid-template-columns:.8fr 1.2fr;
  gap:60px;
}

.contact-info{
  border-top:1px solid var(--line);
}

.contact-line{
  padding:20px 0;
  border-bottom:1px solid var(--line);
}

.contact-line small{
  display:block;
  font:700 11px/1 var(--roboto);
  color:var(--blue);
  margin-bottom:8px;
}

.form-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
}

.field{
  display:flex;
  flex-direction:column;
  gap:8px;
}

.field.full{
  grid-column:1/-1;
}

.field label{
  font:700 11px/1 var(--roboto);
  text-transform:uppercase;
}

.field input,
.field select,
.field textarea{
  width:100%;
  border:1px solid var(--line);
  background:rgba(255,255,255,.55);
  padding:15px;
  color:var(--ink);
  outline:none;
}

.field textarea{
  min-height:150px;
  resize:vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus{
  border-color:var(--blue);
}

/* =========================
   FOOTER
========================= */

footer{
  border-top:1px solid var(--line);
  padding:58px 0 28px;
}

.footer-grid{
  display:grid;
  grid-template-columns:1.4fr .7fr .7fr;
  gap:60px;
}

.footer-logo img{
  width:170px;
  margin-bottom:20px;
}

.footer-links{
  display:flex;
  flex-direction:column;
  gap:10px;
  font:400 12px/1.4 var(--roboto);
}

.footer-bottom{
  margin-top:42px;
  padding-top:20px;
  border-top:1px solid var(--line);
  font:400 11px/1 var(--roboto);
  color:var(--muted);
}

.mobile-toggle{
  display:none;
  margin-left:auto;
  background:transparent;
  border:1px solid var(--line);
  padding:10px;
}

/* =========================
   TABLET / MÓVIL
========================= */

@media(max-width:900px){

  .nav{
    display:none;
    position:absolute;
    left:0;
    right:0;
    top:78px;
    background:var(--paper);
    padding:20px;
    flex-direction:column;
    align-items:flex-start;
    border-bottom:1px solid var(--line);
  }

  .nav.open{
    display:flex;
  }

  .header-cta{
    display:none;
  }

  .mobile-toggle{
    display:block;
  }

  /*
    Cambia automáticamente el fondo del hero
    por la versión vertical/responsiva.
  */
  .hero::before{
    background-image:url('assets/imagenes/hero-movil.png');
    background-position:center center;
  }

  .hero-grid,
  .split,
  .service-block,
  .contact-grid{
    grid-template-columns:1fr;
  }

  .hero-side{
    border-left:0;
    border-top:1px solid var(--line);
    padding:28px 0 0;
  }

  .grid-3,
  .project-grid{
    grid-template-columns:1fr;
  }

  .grid-4{
    grid-template-columns:1fr 1fr;
  }

  .metric:nth-child(2){
    border-right:0;
  }

  .metric:nth-child(-n+2){
    border-bottom:1px solid var(--line);
  }

  .logo-grid{
    grid-template-columns:repeat(3,1fr);
  }

  .problem-grid{
    grid-template-columns:1fr 1fr;
  }

  .service-label{
    position:static;
  }

  .footer-grid{
    grid-template-columns:1fr;
  }
}

/* =========================
   MÓVIL PEQUEÑO
========================= */

@media(max-width:580px){

  .container{
    width:min(calc(100% - 28px),var(--max));
  }

  .section{
    padding:68px 0;
  }

  .hero{
    padding:55px 0 40px;
  }

  .hero::before{
    background-image:url('assets/imagenes/hero-movil.png');
    background-size:cover;
    background-position:center center;
    background-repeat:no-repeat;
  }

  h1{
    font-size:52px;
  }

  .logo-grid{
    grid-template-columns:repeat(2,1fr);
  }

  .grid-4,
  .problem-grid,
  .service-columns,
  .form-grid{
    grid-template-columns:1fr;
  }

  .metric{
    border-right:0;
    border-bottom:1px solid var(--line);
  }

  .split-copy,
  .quote-block{
    padding:30px;
  }
}
/* WhatsApp flotante */
.wa-float{
  position:fixed;
  right:max(20px,env(safe-area-inset-right));
  bottom:max(20px,env(safe-area-inset-bottom));
  z-index:900;
  display:flex;
  flex-direction:row-reverse;
  align-items:center;
  gap:12px;
}

.wa-float__btn{
  position:relative;
  flex:0 0 auto;
  width:60px;
  height:60px;
  display:grid;
  place-items:center;
  border-radius:50%;
  background:#25d366;
  color:#fff;
  box-shadow:0 8px 24px rgba(22,25,29,.28);
  transition:transform .2s ease,background .2s ease;
}

.wa-float__btn svg{
  position:relative;
  z-index:1;
  width:32px;
  height:32px;
  fill:currentColor;
}

.wa-float__btn::before{
  content:"";
  position:absolute;
  inset:0;
  border-radius:50%;
  background:#25d366;
  animation:wa-pulse 2.6s ease-out infinite;
}

.wa-float:hover .wa-float__btn{
  background:#1eb256;
  transform:scale(1.06);
}

.wa-float:focus-visible{
  outline:none;
}

.wa-float:focus-visible .wa-float__btn{
  outline:2px solid var(--ink);
  outline-offset:4px;
}

.wa-float__label{
  background:var(--ink);
  color:#fff;
  font:500 13px/1 var(--roboto);
  letter-spacing:-.01em;
  padding:12px 14px;
  white-space:nowrap;
  box-shadow:0 6px 18px rgba(22,25,29,.18);
  opacity:0;
  transform:translateX(8px);
  pointer-events:none;
  transition:opacity .22s ease,transform .22s ease;
}

.wa-float:hover .wa-float__label,
.wa-float:focus-visible .wa-float__label{
  opacity:1;
  transform:none;
}

@keyframes wa-pulse{
  0%{transform:scale(1);opacity:.55}
  70%{transform:scale(1.7);opacity:0}
  100%{transform:scale(1.7);opacity:0}
}

@media(max-width:900px),(hover:none){
  .wa-float__label{
    display:none;
  }
}

@media(max-width:580px){
  .wa-float{
    right:max(16px,env(safe-area-inset-right));
    bottom:max(16px,env(safe-area-inset-bottom));
  }

  .wa-float__btn{
    width:54px;
    height:54px;
  }

  .wa-float__btn svg{
    width:29px;
    height:29px;
  }
}

@media(prefers-reduced-motion:reduce){
  .wa-float__btn,
  .wa-float__label{
    transition:none;
  }

  .wa-float__btn::before{
    animation:none;
    opacity:0;
  }

  .wa-float:hover .wa-float__btn{
    transform:none;
  }
}

@media print{
  .wa-float{
    display:none;
  }
}