/* ===================================================================
   CORS & DESIGN — Hoja de estilos principal
   =================================================================== */
:root{
  --hueso:#F5F5F3;
  --cemento:#D7D8D6;
  --titanio:#B7B3A6;
  --azul:#2F4550;
  --azul-oscuro:#22343C;
  --arena:#CBBEAA;
  --tinta:#1C2226;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:'Montserrat',Arial,sans-serif;
  background:var(--hueso);
  color:var(--tinta);
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;height:auto;}
ul{list-style:none;}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;
  font-weight:600;color:var(--azul);margin-bottom:14px;
}
.eyebrow::before{content:'';width:22px;height:1px;background:var(--azul);display:inline-block;}
.eyebrow.center{justify-content:center;}
.eyebrow.on-dark{color:var(--arena);}
.eyebrow.on-dark::before{background:var(--arena);}

.btn{
  display:inline-block;padding:15px 30px;
  font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .2s ease;
}
.btn-primary{background:var(--azul);color:#fff;}
.btn-primary:hover{background:var(--azul-oscuro);}
.btn-outline{background:transparent;color:var(--tinta);border-color:var(--tinta);}
.btn-outline:hover{background:var(--tinta);color:#fff;}
.btn-light{background:var(--arena);color:var(--tinta);}
.btn-light:hover{background:#bcae96;}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.5);}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);}

section{padding:96px 6vw;}
.container{max-width:1280px;margin:0 auto;}

/* ---------- header ---------- */
header{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 6vw;
  background:rgba(245,245,243,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--cemento);
}
.logo{display:flex;align-items:center;gap:12px;}
.logo-img{height:34px;width:auto;}
.footer-about .logo-img{height:52px;}
nav ul{display:flex;gap:34px;}
nav a{
  font-size:.76rem;letter-spacing:.06em;text-transform:uppercase;font-weight:600;
  color:var(--tinta);position:relative;padding-bottom:4px;
}
nav a.active{color:var(--azul);border-bottom:2px solid var(--arena);}
.header-right{display:flex;align-items:center;gap:22px;}
.nav-toggle{display:none;background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--tinta);}

@media(max-width:900px){
  nav{
    display:none;position:absolute;top:100%;left:0;right:0;
    background:var(--hueso);border-bottom:1px solid var(--cemento);
    padding:10px 6vw 24px;
  }
  nav.open{display:block;}
  nav ul{flex-direction:column;gap:18px;}
  .nav-toggle{display:block;}
}

/* ---------- placeholder image treatment (kept for reference) ---------- */
.photo{position:relative;overflow:hidden;background:var(--cemento);}
.photo img{width:100%;height:100%;object-fit:cover;}

/* ---------- page hero (subpages) ---------- */
.page-hero{
  padding:70px 6vw 50px;
  border-bottom:1px solid var(--cemento);
}
.page-hero .eyebrow{margin-bottom:16px;}
.page-hero h1{font-size:clamp(1.9rem,3.2vw,2.6rem);font-weight:700;max-width:760px;margin-bottom:14px;}
.page-hero p{max-width:560px;color:#5a6166;font-size:1rem;}

/* ---------- hero (home) ---------- */
.hero{display:grid;grid-template-columns:1fr 1fr;min-height:620px;}
.hero-copy{padding:80px 6vw;display:flex;flex-direction:column;justify-content:center;background:var(--hueso);}
.hero-copy h1{font-size:clamp(2.1rem,3.6vw,3.2rem);line-height:1.08;font-weight:700;letter-spacing:-.01em;margin-bottom:22px;}
.hero-copy h1 em{font-style:normal;color:var(--azul);display:block;}
.hero-copy p{max-width:440px;color:#4b5257;font-size:1rem;margin-bottom:34px;}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap;}
.hero-photo{min-height:420px;}

@media(max-width:900px){
  .hero{grid-template-columns:1fr;}
  .hero-photo{min-height:320px;order:-1;}
  .hero-copy{padding:56px 6vw;}
}

/* ---------- diferenciadores ---------- */
.diff-strip{display:grid;grid-template-columns:repeat(5,1fr);background:#fff;border-top:1px solid var(--cemento);border-bottom:1px solid var(--cemento);}
.diff{padding:44px 26px;border-right:1px solid var(--cemento);}
.diff:last-child{border-right:none;}
.diff-icon{width:30px;height:30px;margin-bottom:18px;color:var(--azul);}
.diff h3{font-size:.82rem;letter-spacing:.03em;text-transform:uppercase;font-weight:700;margin-bottom:8px;}
.diff p{font-size:.82rem;color:#6b7278;}
@media(max-width:900px){
  .diff-strip{grid-template-columns:repeat(2,1fr);}
  .diff:nth-child(2n){border-right:none;}
}

/* ---------- sobre nosotros dark split ---------- */
.nosotros-split{background:var(--azul);color:#fff;display:grid;grid-template-columns:1fr 1fr 1fr;}
.nosotros-copy{padding:80px 5vw;display:flex;flex-direction:column;justify-content:center;}
.nosotros-copy h2{font-size:clamp(1.7rem,2.6vw,2.3rem);line-height:1.15;font-weight:700;margin-bottom:20px;}
.nosotros-copy h2 em{font-style:normal;color:var(--arena);}
.nosotros-copy p{color:#c7ced1;font-size:.94rem;margin-bottom:16px;max-width:400px;}
.nosotros-photo{min-height:380px;}
@media(max-width:900px){
  .nosotros-split{grid-template-columns:1fr;}
  .nosotros-photo{min-height:260px;}
}

/* ---------- section head (centered) ---------- */
.sec-head{text-align:center;max-width:640px;margin:0 auto 56px;}
.sec-head h2{font-size:clamp(1.6rem,2.6vw,2.2rem);font-weight:700;margin-bottom:14px;}
.sec-head p{color:#5a6166;font-size:.95rem;}

/* ---------- categorías / cards grid ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:2px;background:var(--cemento);}
.cat-card{background:#fff;display:flex;flex-direction:column;}
.cat-card .photo{height:220px;}
.cat-body{padding:26px 24px 30px;flex:1;display:flex;flex-direction:column;}
.cat-body h3{font-size:.94rem;font-weight:700;margin-bottom:10px;letter-spacing:.01em;}
.cat-body p{font-size:.82rem;color:#6b7278;flex:1;margin-bottom:16px;}
.cat-link{font-size:.74rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--azul);}
.cat-link::after{content:' →';}
@media(max-width:900px){.cat-grid{grid-template-columns:repeat(2,1fr);}}

/* ---------- cifras ---------- */
.cifras{display:grid;grid-template-columns:1.1fr 1fr 1fr 1fr 1fr;}
.cifras .claim{background:var(--azul);color:#fff;padding:48px 40px;display:flex;flex-direction:column;justify-content:center;}
.cifras .claim h3{font-size:1.15rem;font-weight:700;line-height:1.35;}
.cifra{background:var(--arena);padding:48px 24px;border-left:1px solid rgba(28,34,38,.08);display:flex;flex-direction:column;justify-content:center;}
.cifra .num{font-size:2.1rem;font-weight:800;color:var(--azul-oscuro);line-height:1;margin-bottom:10px;}
.cifra .lbl{font-size:.72rem;letter-spacing:.05em;text-transform:uppercase;font-weight:600;color:#4b463b;}
@media(max-width:960px){.cifras{grid-template-columns:1fr 1fr;}}

/* ---------- proceso ---------- */
.proceso-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:34px;}
.paso{border-top:2px solid var(--azul);padding-top:20px;}
.paso .n{font-size:.75rem;font-weight:700;color:var(--titanio);letter-spacing:.1em;margin-bottom:14px;}
.paso h3{font-size:1rem;font-weight:700;margin-bottom:10px;}
.paso p{font-size:.85rem;color:#6b7278;}
@media(max-width:900px){.proceso-grid{grid-template-columns:1fr 1fr;row-gap:40px;}}

/* ---------- cta final ---------- */
.cta-final{background:var(--tinta);color:#fff;text-align:center;padding:100px 6vw;}
.cta-final h2{font-size:clamp(1.8rem,3vw,2.6rem);font-weight:700;margin-bottom:16px;}
.cta-final p{color:#b7bdc0;margin-bottom:34px;}

/* ---------- footer ---------- */
footer{background:#fff;border-top:1px solid var(--cemento);padding:70px 6vw 30px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;margin-bottom:50px;}
.footer-grid h4{font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;font-weight:700;margin-bottom:18px;color:var(--azul);}
.footer-grid li{margin-bottom:10px;font-size:.85rem;color:#5a6166;}
.footer-about p{font-size:.85rem;color:#5a6166;max-width:280px;margin-top:14px;}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:24px;border-top:1px solid var(--cemento);font-size:.74rem;color:#8a9096;flex-wrap:wrap;gap:12px;}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;}}

/* ---------- generic content blocks (Nosotros / Servicios / Industrias / Proyectos / Contacto) ---------- */
.split-row{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;}
.split-row.reverse .photo{order:2;}
.split-row .photo{min-height:340px;}
.split-row h2{font-size:clamp(1.5rem,2.4vw,2rem);font-weight:700;margin-bottom:16px;}
.split-row p{color:#5a6166;font-size:.95rem;margin-bottom:14px;}
.split-row + .split-row{margin-top:90px;}
@media(max-width:900px){
  .split-row{grid-template-columns:1fr;gap:30px;}
  .split-row.reverse .photo{order:0;}
}

.values-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-top:80px;}
.value{border-top:2px solid var(--azul);padding-top:18px;}
.value h3{font-size:.95rem;font-weight:700;margin-bottom:8px;}
.value p{font-size:.82rem;color:#6b7278;}
@media(max-width:900px){.values-grid{grid-template-columns:1fr 1fr;row-gap:34px;}}

/* servicios page: alternating big rows */
.service-row{display:grid;grid-template-columns:1fr 1fr;gap:0;background:#fff;border:1px solid var(--cemento);margin-bottom:2px;}
.service-row .photo{min-height:340px;}
.service-copy{padding:50px;display:flex;flex-direction:column;justify-content:center;}
.service-copy .tag{font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;font-weight:700;color:var(--titanio);margin-bottom:12px;}
.service-copy h3{font-size:1.4rem;font-weight:700;margin-bottom:14px;}
.service-copy p{color:#5a6166;font-size:.95rem;margin-bottom:20px;}
@media(max-width:900px){
  .service-row{grid-template-columns:1fr;}
  .service-row.reverse .photo{order:0;}
}

/* proyectos gallery */
.proyectos-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;background:var(--cemento);}
.proyecto-card{background:#fff;position:relative;}
.proyecto-card .photo{height:320px;}
.proyecto-info{padding:22px 24px 26px;}
.proyecto-tag{font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;font-weight:700;color:var(--azul);margin-bottom:8px;display:block;}
.proyecto-info h3{font-size:1rem;font-weight:700;}
@media(max-width:900px){.proyectos-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:560px){.proyectos-grid{grid-template-columns:1fr;}}

/* industrias grid */
.industrias-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;background:var(--cemento);}
.industria-card{background:#fff;}
.industria-card .photo{height:220px;}
.industria-body{padding:24px 24px 30px;}
.industria-body h3{font-size:1rem;font-weight:700;margin-bottom:10px;}
.industria-body p{font-size:.85rem;color:#6b7278;}
@media(max-width:900px){.industrias-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:560px){.industrias-grid{grid-template-columns:1fr;}}

/* contacto page */
.contacto-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:60px;}
.form-group{margin-bottom:20px;}
.form-group label{display:block;font-size:.78rem;font-weight:600;letter-spacing:.03em;margin-bottom:8px;color:var(--tinta);}
.form-group input,.form-group select,.form-group textarea{
  width:100%;padding:13px 14px;border:1px solid var(--cemento);background:#fff;
  font-family:'Montserrat',Arial,sans-serif;font-size:.9rem;color:var(--tinta);
}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{
  outline:none;border-color:var(--azul);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.contacto-info{background:var(--azul);color:#fff;padding:44px;height:fit-content;}
.contacto-info h3{font-size:1.1rem;font-weight:700;margin-bottom:22px;}
.contacto-info ul li{font-size:.9rem;color:#d7dde0;margin-bottom:16px;padding-left:0;}
.contacto-info ul li b{display:block;color:#fff;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;margin-bottom:4px;}
@media(max-width:900px){.contacto-grid{grid-template-columns:1fr;}.form-row{grid-template-columns:1fr;}}

/* form status message */
#form-status{margin-top:16px;font-size:.85rem;display:none;}
#form-status.show{display:block;}
#form-status.ok{color:#2e6b3e;}
#form-status.err{color:#a3342f;}