/* ==========================================================================
   InfraMar Ingeniería — inframar.cl
   Sistema de diseño · tema mixto (base clara + hero/CTA/footer navy)
   ========================================================================== */

/* --------------------------------------------------------------- 1. Tokens */
:root{
  /* color */
  --accent:#3083B9;              /* azul InfraMar (muestreado del logo) */
  --accent-dark:#256A99;
  --accent-light:#6FB4E0;        /* acento sobre fondos oscuros */
  --ink:#172C47;                 /* navy corporativo */
  --ink-deep:#0E1D30;            /* footer / bloques de énfasis */
  --base:#FFFFFF;
  --surface:#F2F5F9;
  --surface-2:#E7EEF5;
  --line:#E2E9F1;
  --line-strong:#CBD8E4;
  --line-dark:rgba(255,255,255,.13);
  --muted:#56687C;
  --muted-dark:rgba(255,255,255,.7);

  /* medidas */
  --container:1240px;
  --gap:24px;
  --radius:12px;
  --radius-sm:8px;
  --radius-lg:18px;

  /* sombras */
  --shadow-sm:0 1px 2px rgba(14,29,48,.05);
  --shadow:0 18px 48px -22px rgba(14,29,48,.38);
  --shadow-lg:0 40px 90px -40px rgba(14,29,48,.55);

  /* tipografía */
  --font-title:"Geist","Geist Fallback",sans-serif;
  --font-body:"IBM Plex Sans","IBM Plex Sans Fallback",sans-serif;

  --ease:cubic-bezier(.22,.61,.36,1);
  --header-h:79px;
}

/* ----------------------------------------------------------- 2. Reset base */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:1rem;
  line-height:1.68;
  color:var(--muted);
  background:var(--base);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}

h1,h2,h3,h4,h5,h6{
  font-family:var(--font-title);
  color:var(--ink);
  margin:0;
  font-weight:700;
}
h1{
  font-size:clamp(2.45rem,5.4vw,4.4rem);
  line-height:1.03;letter-spacing:-.035em;text-wrap:balance;
}
h2{
  font-size:clamp(1.85rem,3.4vw,2.9rem);
  line-height:1.09;letter-spacing:-.03em;text-wrap:balance;
}
h3{font-size:clamp(1.12rem,1.5vw,1.3rem);line-height:1.22;letter-spacing:-.018em}
h4{font-size:1.02rem;line-height:1.3;letter-spacing:-.012em}
p{margin:0 0 1.05em}
p:last-child{margin-bottom:0}

/* énfasis de acento dentro de los títulos */
h1 em,h2 em,h3 em{font-style:normal;color:var(--accent)}
.hero h1 em{color:#fff}
.page-hero h1 em,.page-hero h2 em,
.cta h1 em,.cta h2 em,
.section--dark h1 em,.section--dark h2 em{color:var(--accent-light)}

::selection{background:var(--accent);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

.skip-link{
  position:absolute;left:16px;top:-70px;z-index:200;
  padding:11px 18px;border-radius:0 0 8px 8px;
  background:var(--accent);color:#fff;
  font-family:var(--font-title);font-weight:600;font-size:.9rem;
  transition:top .25s var(--ease);
}
.skip-link:focus{top:0}

/* ⛔ Texto claro sobre fondo oscuro o imagen — los TÍTULOS también.
   El reset de arriba (selector de elemento) gana a la herencia del contenedor. */
.hero h1,.hero h2,.hero h3,.hero h4,
.page-hero h1,.page-hero h2,.page-hero h3,.page-hero h4,
.cta h1,.cta h2,.cta h3,.cta h4,
.section--dark h1,.section--dark h2,.section--dark h3,.section--dark h4,
.card h3,.card h4,
.note-card h3,
.site-footer h1,.site-footer h2,.site-footer h3,.site-footer h4{color:#fff}

/* ------------------------------------------------------------ 3. Layout */
.container{
  width:100%;
  max-width:var(--container);
  margin-inline:auto;
  padding-inline:28px;
}
.section{padding-block:clamp(72px,8vw,124px)}
section[id]{scroll-margin-top:96px}
.section--tight{padding-block:clamp(54px,6vw,84px)}
.section--surface{background:var(--surface)}
.section--dark{background:var(--ink);color:var(--muted-dark)}
.section--dark p{color:var(--muted-dark)}

.cta{position:relative;isolation:isolate}

.section-head{max-width:760px;margin-bottom:clamp(38px,4.4vw,60px)}
.section-head--center{margin-inline:auto;text-align:center}
.section-head p{margin-top:18px;font-size:1.06rem}

.lede{font-size:1.1rem;line-height:1.72}

/* eyebrow — solo texto, sin píldora, sin punto, sin raya */
.eyebrow{
  display:block;
  margin:0 0 7px;
  font-family:var(--font-title);
  font-size:.735rem;
  font-weight:600;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--accent);
}
.section--dark .eyebrow,
.page-hero .eyebrow,
.cta .eyebrow{color:var(--accent-light)}
.hero .eyebrow{color:#fff}
.eyebrow + h1{margin-top:15px}
.eyebrow + h2,.eyebrow + h3{margin-top:14px}

/* --------------------------------------------------------------- 4. Botones */
.btn{
  position:relative;
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;
  font-family:var(--font-title);
  font-size:.92rem;font-weight:600;letter-spacing:-.005em;
  border-radius:10px;
  border:1px solid transparent;
  transition:background .28s var(--ease),color .28s var(--ease),
             border-color .28s var(--ease),transform .28s var(--ease),
             box-shadow .28s var(--ease);
  white-space:nowrap;
}
.btn--primary{
  background:var(--accent);color:#fff;border-color:var(--accent);
  box-shadow:0 10px 26px -12px rgba(48,131,185,.9);
}
.btn--primary:hover{
  background:var(--accent-dark);border-color:var(--accent-dark);color:#fff;
  transform:translateY(-2px);box-shadow:0 16px 34px -14px rgba(37,106,153,.85);
}
.btn--ghost{background:transparent;border-color:var(--line-strong);color:var(--ink)}
.btn--ghost:hover{border-color:var(--ink);background:var(--ink);color:#fff;transform:translateY(-2px)}
/* fantasma sobre fondo oscuro / imagen */
.hero .btn--ghost,
.page-hero .btn--ghost,
.cta .btn--ghost,
.section--dark .btn--ghost{border-color:rgba(255,255,255,.34);color:#fff}
.hero .btn--ghost:hover,
.page-hero .btn--ghost:hover,
.cta .btn--ghost:hover,
.section--dark .btn--ghost:hover{border-color:#fff;background:#fff;color:var(--ink)}
.btn-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:34px}
.btn-row--center{justify-content:center}

/* enlace con flecha */
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-title);font-weight:600;font-size:.9rem;
  color:var(--accent);
}
.link-arrow svg{transition:transform .3s var(--ease)}
.link-arrow:hover svg{transform:translateX(4px)}

/* --------------------------------------------------------------- 5. Header */
.site-header{
  position:fixed;inset:0 0 auto;z-index:80;
  padding-block:14px;
  background:#fff;
  box-shadow:inset 0 -1px 0 var(--line);
  transition:padding .35s var(--ease),box-shadow .35s var(--ease);
}
.site-header.is-scrolled{
  padding-block:10px;
  box-shadow:inset 0 -1px 0 var(--line),0 10px 28px -16px rgba(14,29,48,.28);
}
.header-inner{
  display:grid;grid-template-columns:1fr auto 1fr;
  align-items:center;gap:22px;
}

.brand{display:flex;align-items:center;flex:none;justify-self:start}
.brand img{width:auto;height:51px;transition:height .35s var(--ease)}
.is-scrolled .brand img{height:44px}

.nav{display:flex;align-items:center;justify-self:center;gap:2px}
.nav a{
  position:relative;
  padding:9px 14px;
  font-family:var(--font-title);font-size:.9rem;font-weight:500;letter-spacing:-.008em;
  color:var(--muted);border-radius:8px;white-space:nowrap;
  transition:color .25s var(--ease);
}
.nav a:hover{color:var(--ink)}
.nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:1.5px;
  background:var(--accent);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .3s var(--ease);
}
.nav a:hover::after,.nav a[aria-current="page"]::after{transform:scaleX(1)}
.nav a[aria-current="page"]{color:var(--ink);font-weight:600}
/* el CTA del menú móvil no se muestra en escritorio (evita el botón duplicado) */
.nav > .btn{display:none}
.nav a.btn--primary{color:#fff}

.header-cta{flex:none;justify-self:end;padding:11px 22px;font-size:.88rem}
.nav-toggle{position:relative;z-index:81;display:none;flex:none;padding:8px;color:var(--ink);border-radius:8px}
.nav-toggle .icon-close{display:none}
.nav-toggle[aria-expanded="true"]{color:#fff}
.nav-toggle[aria-expanded="true"] .icon-menu{display:none}
.nav-toggle[aria-expanded="true"] .icon-close{display:block}
.nav-backdrop{
  position:fixed;inset:0;z-index:78;
  background:rgba(14,29,48,.6);
  opacity:0;visibility:hidden;transition:opacity .35s var(--ease),visibility .35s;
  backdrop-filter:blur(2px);
}
.nav-backdrop.is-open{opacity:1;visibility:visible}

/* ----------------------------------------------------------------- 6. Hero */
.hero{
  position:relative;
  display:flex;align-items:center;
  /* pantalla completa; el bloque de texto queda centrado con el mismo aire
     arriba (bajo la cabecera fija) y abajo */
  min-height:100vh;
  min-height:100svh;
  padding-block:var(--header-h) 0;
  background:var(--ink-deep);
  color:#fff;
  isolation:isolate;
}
.hero__media{position:absolute;inset:0;z-index:-2;overflow:hidden}
.hero__media img{width:100%;height:100%;object-fit:cover;animation:heroZoom 12s var(--ease) both}
@keyframes heroZoom{from{transform:scale(1.09)}to{transform:scale(1)}}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    linear-gradient(180deg,rgba(14,29,48,.7) 0%,rgba(14,29,48,.34) 34%,rgba(14,29,48,.94) 100%),
    linear-gradient(90deg,rgba(14,29,48,.86) 0%,rgba(14,29,48,.12) 68%);
}
.hero__inner{max-width:940px}
.hero__lede{
  margin-top:26px;max-width:560px;
  font-size:clamp(1.04rem,1.4vw,1.2rem);
  color:#fff;
}

/* franja de claves bajo el hero: banda clara, icono a la izquierda */
.hero-facts{background:var(--surface);color:var(--muted)}
.hero-facts__grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:clamp(30px,3.6vw,56px);
  padding-block:clamp(46px,4.6vw,64px);
}
.hero-fact{display:flex;gap:18px;align-items:flex-start}
.hero-fact__icon{
  flex:none;display:flex;align-items:center;justify-content:center;
  width:46px;height:46px;margin:2px 0 0;
  border-radius:13px;
  background:#fff;box-shadow:0 2px 6px rgba(14,29,48,.07);
  color:var(--accent);
  transition:background .35s var(--ease),color .35s var(--ease),transform .35s var(--ease);
}
.hero-fact__icon svg{width:24px;height:24px}
.hero-fact:hover .hero-fact__icon{background:var(--accent);color:#fff;transform:translateY(-2px)}
.hero-fact__body{min-width:0}
.hero-fact h3{font-size:1.06rem;margin-bottom:8px;color:var(--ink)}
.hero-fact p{font-size:.93rem;line-height:1.62;color:var(--muted)}

/* ------------------------------------------------------- 7. Page hero */
.page-hero{
  position:relative;
  /* misma altura en las cuatro pestañas, tenga el titular una o dos líneas */
  min-height:522px;
  padding-block:200px 92px;
  background:var(--ink-deep);
  color:rgba(255,255,255,.84);
  isolation:isolate;
}
.page-hero__media{position:absolute;inset:0;z-index:-2;overflow:hidden}
.page-hero__media img{width:100%;height:100%;object-fit:cover}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    linear-gradient(180deg,rgba(14,29,48,.74) 0%,rgba(14,29,48,.42) 48%,rgba(14,29,48,.9) 100%),
    linear-gradient(90deg,rgba(14,29,48,.78) 0%,rgba(14,29,48,.16) 74%);
}
.page-hero__inner{max-width:840px}
/* el titular de las páginas interiores va algo menor que el de la portada */
.page-hero h1{font-size:clamp(2.1rem,4.4vw,3.6rem)}
.page-hero p{margin-top:20px;max-width:620px;font-size:1.06rem;color:rgba(255,255,255,.84)}
/* --------------------------------------------------------------- 8. Grids */
.grid{display:grid;gap:var(--gap)}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}

/* --------------------------- tarjeta de obra: foto a sangre + título encima */
.card{
  position:relative;
  display:flex;flex-direction:column;justify-content:flex-end;
  aspect-ratio:4/3.2;
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--ink);
  isolation:isolate;
}
.card__media{position:absolute;inset:0;z-index:-2;overflow:hidden}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .9s var(--ease)}
.card::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(14,29,48,.06) 0%,rgba(14,29,48,.42) 44%,rgba(14,29,48,.93) 100%);
  transition:opacity .5s var(--ease);
}
.card:hover .card__media img{transform:scale(1.06)}
.card:hover::before{opacity:.94}
.card__body{padding:26px 26px 28px;color:rgba(255,255,255,.82)}
.card__body h3{
  display:flex;align-items:flex-end;
  min-height:calc(2 * 1.22em);margin-bottom:9px;
}
.card__body p{font-size:.925rem;line-height:1.55;color:rgba(255,255,255,.78);min-height:calc(2 * 1.55em)}
/* la flecha se convierte en un botón circular en la esquina superior */
.card__body .link-arrow{
  position:absolute;top:20px;right:20px;
  width:40px;height:40px;padding:0;font-size:0;
  align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.3);
  background:rgba(14,29,48,.55);
  color:#fff;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  transition:background .3s var(--ease),border-color .3s var(--ease);
}
.card:hover .link-arrow{background:var(--accent);border-color:var(--accent);color:#fff}
.card .link-arrow svg{width:17px;height:17px}

/* tarjeta simple (sin foto) */
.tile{
  padding:32px 30px 34px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s var(--ease);
}
.tile:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:transparent}
.tile h3{margin-bottom:10px}
.tile p{font-size:.93rem;line-height:1.6}
.tile__icon{
  display:flex;align-items:center;justify-content:center;
  width:28px;height:28px;margin-bottom:24px;
  color:var(--accent);
}
.tile__icon svg{width:28px;height:28px}
.section--dark .tile{
  background:rgba(255,255,255,.04);border-color:var(--line-dark);
}
.section--dark .tile:hover{background:rgba(255,255,255,.075);border-color:rgba(111,180,224,.4);box-shadow:none}
.section--dark .tile__icon{color:var(--accent-light)}

/* --------------------------- 9. Línea de tiempo (ciclo de vida del proyecto) */
.steps{
  display:grid;grid-template-columns:repeat(5,1fr);
  gap:0;
  border-top:1px solid var(--line-dark);
}
.step{
  position:relative;
  padding:38px 26px 8px 0;
  transition:background .4s var(--ease);
}
.step + .step{padding-left:26px;border-left:1px solid var(--line-dark)}
/* nodo sobre la línea */
.step::before{
  content:"";position:absolute;top:-4.5px;left:0;
  width:8px;height:8px;border-radius:50%;
  background:var(--accent-light);
  box-shadow:0 0 0 4px var(--ink);
  transition:transform .35s var(--ease);
}
.step + .step::before{left:26px}
.step:hover::before{transform:scale(1.5)}
.step__num{
  display:block;margin-bottom:14px;
  font-family:var(--font-title);font-size:2rem;font-weight:700;letter-spacing:-.04em;
  line-height:1;
  color:transparent;
  -webkit-text-stroke:1px rgba(111,180,224,.55);
  transition:color .4s var(--ease);
}
.step:hover .step__num{color:rgba(111,180,224,.16)}
.step h3{font-size:1.06rem;margin-bottom:16px;color:#fff}
.step ul li{
  position:relative;padding-left:16px;margin-bottom:8px;
  font-size:.88rem;line-height:1.5;color:var(--muted-dark);
}
.step ul li::before{
  content:"";position:absolute;left:0;top:.66em;
  width:5px;height:1.5px;border-radius:2px;background:var(--accent-light);
}
.step ul li:last-child{margin-bottom:0}

/* ------------------------------------------- 10. Bloque media + contenido */
.split{
  display:grid;grid-template-columns:1fr 1fr;
  gap:clamp(34px,5.5vw,80px);align-items:stretch;
}
.split + .split{margin-top:clamp(64px,7vw,104px)}
.split__media{
  position:relative;align-self:stretch;min-height:340px;max-height:500px;
  border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow);
}
.split__media img{width:100%;height:100%;object-fit:cover}
.split--rev .split__media{order:2}
.split__body h2,.split__body h3{margin-bottom:0}
.split__body > h3{
  padding-top:20px;border-top:1px solid var(--line-strong);
  font-size:clamp(1.3rem,2vw,1.62rem);
}
.split__body > p{margin-top:18px}

.check-list{margin-top:26px;display:grid;gap:12px}
.check-list li{
  position:relative;padding-left:30px;
  font-size:.97rem;line-height:1.55;color:var(--muted);
}
.check-list li strong{color:var(--ink);font-weight:600}
.check-list li::before{
  content:"";position:absolute;left:0;top:.3em;
  width:16px;height:16px;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%233083B9' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/16px no-repeat;
}
.section--dark .check-list li,
.note-card .check-list li{color:var(--muted-dark)}
.section--dark .check-list li strong{color:#fff}
.section--dark .check-list li::before,
.note-card .check-list li::before{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236FB4E0' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
}

/* --------------------------------------------------------------- 13. CTA */
.cta{
  position:relative;
  padding-block:clamp(84px,9vw,132px);
  background:var(--ink-deep);color:rgba(255,255,255,.84);
  isolation:isolate;text-align:center;
}
.cta__media{position:absolute;inset:0;z-index:-2;overflow:hidden}
.cta__media img{width:100%;height:100%;object-fit:cover}
.cta::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(14,29,48,.88),rgba(14,29,48,.76));
}
.cta__inner{max-width:800px;margin-inline:auto}
.cta p{margin-top:18px;font-size:1.06rem;color:rgba(255,255,255,.84)}
.cta .btn-row{justify-content:center}

/* ---------------------------------------------------------- 14. Contacto */
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(36px,5vw,72px);align-items:start}

.contact-intro{margin-top:16px}
.contact-list{display:grid;gap:24px;margin-top:32px}
.contact-item{display:flex;gap:16px;align-items:flex-start}
.contact-item__icon{flex:none;display:flex;width:22px;height:22px;margin-top:2px;color:var(--accent)}
.contact-item__icon svg{width:22px;height:22px}
.contact-item__label{
  display:block;margin-bottom:2px;
  font-family:var(--font-title);font-size:.74rem;font-weight:600;
  letter-spacing:.16em;text-transform:uppercase;color:var(--accent);
}
.contact-item a,.contact-item p{font-size:1.02rem;color:var(--ink);transition:color .25s var(--ease)}
.contact-item a:hover{color:var(--accent)}

.note-card{
  margin-top:40px;
  padding:30px 30px 32px;
  background:var(--ink);border-radius:var(--radius);
  color:var(--muted-dark);
}
.note-card h3{font-size:1.04rem;margin-bottom:9px}
.note-card p{font-size:.93rem}
.note-card .check-list{margin-top:18px;gap:10px}
.note-card .check-list li{font-size:.92rem;padding-left:27px}
.note-card .check-list li::before{width:15px;height:15px;background-size:15px}

/* formulario */
.form-card{
  padding:clamp(28px,3.4vw,44px);
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{display:flex;flex-direction:column;gap:8px}
.field--full{grid-column:1/-1}
.field label{
  font-family:var(--font-title);font-size:.78rem;font-weight:600;
  letter-spacing:.1em;text-transform:uppercase;color:var(--muted);
}
.field input,.field textarea{
  width:100%;padding:13px 15px;
  font-family:var(--font-body);font-size:.97rem;color:var(--ink);
  background:var(--surface);
  border:1px solid transparent;border-bottom:1px solid var(--line-strong);
  border-radius:var(--radius-sm);
  transition:border-color .25s var(--ease),background .25s var(--ease),box-shadow .25s var(--ease);
}
.field textarea{min-height:140px;resize:vertical}
.field input:focus,.field textarea:focus{
  outline:none;background:#fff;border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(48,131,185,.13);
}
.form-title{margin-bottom:22px}
.form-card .btn{margin-top:26px}

.form-alert{
  display:none;
  margin-bottom:24px;padding:15px 18px;
  border-radius:var(--radius-sm);
  font-size:.95rem;line-height:1.5;
}
.form-alert.is-ok{display:block;background:#E8F6EE;border:1px solid #B7E0C7;color:#1B6B3D}
.form-alert.is-err{display:block;background:#FDEDED;border:1px solid #F2C4C4;color:#9B2C2C}

/* ---------------------------------------------------------- 15. Footer */
.site-footer{
  background:var(--ink-deep);
  color:var(--muted-dark);
  /* 74 arriba · 30 abajo: el cierre pesa menos que la apertura */
  padding-block:clamp(52px,6vw,74px) 30px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.25fr;
  gap:clamp(28px,4vw,48px);
}
.footer-brand img{height:88px;width:auto;margin-bottom:22px}
.footer-brand p{font-size:.93rem;line-height:1.64;max-width:330px}
.footer-col h4{
  margin-bottom:20px;
  font-size:.74rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;
  color:rgba(255,255,255,.5);
}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:.93rem;color:var(--muted-dark);transition:color .25s var(--ease)}
.footer-col a:hover{color:var(--accent-light)}

.footer-contact li{margin-bottom:15px}
.footer-contact a,.footer-contact span{
  display:inline-flex;align-items:center;gap:11px;
  font-size:.93rem;color:var(--muted-dark);
  transition:color .25s var(--ease);
}
.footer-contact a:hover{color:var(--accent-light)}
.footer-contact svg{flex:none;color:var(--accent-light)}

.footer-credit{
  margin-top:40px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  text-align:center;
  font-size:.8rem;
  color:rgba(255,255,255,.6);
}
.footer-credit a{color:var(--accent);text-decoration:none;transition:color .25s var(--ease)}
.footer-credit a:hover{color:color-mix(in srgb,var(--accent) 75%,#fff)}

/* --------------------------------------------------------- 16. Animación */
.js .reveal{
  opacity:0;transform:translateY(22px);
  transition:opacity .8s var(--ease),transform .8s var(--ease);
}
.js .reveal.is-visible{opacity:1;transform:none}
/* salvavidas: si el JS marcó .js pero el observer no corrió, revela igual */
.js .reveal{animation:reveal-failsafe 0s linear 3s forwards}
@keyframes reveal-failsafe{to{opacity:1;transform:none}}
.js .reveal[data-delay="1"]{transition-delay:.08s}
.js .reveal[data-delay="2"]{transition-delay:.16s}
.js .reveal[data-delay="3"]{transition-delay:.24s}
.js .reveal[data-delay="4"]{transition-delay:.32s}

/* Transiciones de página (cross-fade nativo, suave y rápido) */
@view-transition{navigation:auto}
::view-transition-old(root),
::view-transition-new(root){
  animation-duration:.15s;
  animation-timing-function:cubic-bezier(.4,0,.2,1);
}

/* ------------------------------------------------------- 17. Responsive */
@media (max-width:1160px){
  :root{--header-h:79px}
  .header-inner{display:flex}
  .brand{margin-right:auto}
  .header-cta{display:none}
  .nav-toggle{display:flex}
  .nav{
    position:fixed;top:0;right:0;bottom:0;z-index:79;
    width:min(330px,86vw);
    flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:2px;padding:100px 26px 32px;
    background:var(--ink-deep);
    transform:translateX(102%);
    transition:transform .4s var(--ease);
    overflow-y:auto;
  }
  .nav.is-open{transform:none}
  .nav a{color:rgba(255,255,255,.86);padding:14px 14px;font-size:1.02rem;border-radius:8px}
  .nav a:hover,.nav a[aria-current="page"]{color:#fff;background:rgba(255,255,255,.06)}
  .nav a::after{left:14px;right:auto;width:16px;bottom:9px;background:var(--accent-light)}
  .nav .btn{display:inline-flex;margin-top:20px;justify-content:center}

  .steps{grid-template-columns:repeat(2,1fr)}
  .step,.step + .step{padding:34px 22px 26px;border-left:0}
  .step + .step::before{left:0}
  .step::before{display:none}
  .step{border-left:1px solid var(--line-dark)!important;padding-left:22px}
  .grid--4{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;row-gap:38px}
  .hero-facts__grid{grid-template-columns:1fr;gap:30px}
}

@media (max-width:880px){
  .grid--2,.grid--3,.grid--4{grid-template-columns:repeat(2,1fr)}
  .split,.contact-grid{grid-template-columns:1fr}
  .split--rev .split__media{order:0}
  .split__media{min-height:0}
  .split__media img{height:auto;aspect-ratio:16/10}

  .page-hero{min-height:0;padding-block:156px 66px}
}

@media (max-width:560px){
  :root{--gap:18px}
  .container{padding-inline:22px}
  .grid--2,.grid--3,.grid--4,.steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;row-gap:34px}
  .brand img,.is-scrolled .brand img{height:44px}
  :root{--header-h:72px}
  .page-hero{padding-block:130px 56px}
  .card{aspect-ratio:4/3.4}
  .card__body{padding:22px 22px 24px}
  .form-grid{grid-template-columns:1fr}
  .btn{padding:13px 22px;font-size:.9rem}
  .btn-row .btn{flex:1 1 auto}
  .footer-brand p{max-width:none}
  .value{padding:26px 24px;gap:16px}
}

/* ------------------------------------------------- 18. Reduced motion */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  .js .reveal{opacity:1;transform:none}
  .hero__media img{animation:none}
  ::view-transition-old(root),
  ::view-transition-new(root){animation:none}
}

/* ---------- Logos de colaboradores y clientes ---------- */
.logo-row{
  display:flex; flex-wrap:wrap; justify-content:center;
  gap:24px; margin-top:28px;
}
.logo-card{
  background:var(--base);
  border:1px solid var(--line);
  border-radius:14px;
  padding:10px 18px;
  display:flex; align-items:center; justify-content:center;
  max-width:280px; flex:0 1 240px;
}
.logo-card img{ width:100%; height:auto; display:block; }