@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@500;600;700&family=Inter:wght@400;500;600&display=swap');

:root{
  --azul: #1B3A5C;
  --azul-osc: #12283F;
  --gris-concreto: #4A4F54;
  --gris-claro: #E6E2DA;
  --crema: #F6F4EF;
  --naranja: #D9A404;
  --blanco: #FFFFFF;
  --linea: #C9C3B6;
}

*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:'Inter', sans-serif;
  color: var(--azul-osc);
  background: var(--crema);
  line-height:1.55;
}
h1,h2,h3,h4,.display{
  font-family:'Barlow Condensed', sans-serif;
  font-weight:700;
  letter-spacing:0.01em;
  line-height:1.05;
}
a{color:inherit; text-decoration:none;}
img{display:block; max-width:100%;}
.wrap{max-width:1180px; margin:0 auto; padding:0 28px;}

/* ---------- HEADER ---------- */
header{
  position:sticky; top:0; z-index:50;
  background: var(--azul);
  border-bottom:3px solid var(--naranja);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 28px; max-width:1180px; margin:0 auto;
}
.brand{display:flex; align-items:center; gap:12px;}
.brand img{height:38px; width:auto;}
.brand span{
  font-family:'Barlow Condensed', sans-serif;
  font-weight:700; font-size:1.35rem; color:var(--blanco);
}
.navlinks{display:flex; gap:34px;}
.navlinks a{
  color:#CBD6E2; font-size:0.92rem; font-weight:500;
  padding:6px 2px; border-bottom:2px solid transparent;
  transition:color .15s, border-color .15s;
}
.navlinks a:hover{color:var(--blanco); border-color:var(--naranja);}
.nav-cta{
  background:var(--naranja); color:var(--blanco); font-weight:600; font-size:0.88rem;
  padding:10px 20px; white-space:nowrap;
}
.nav-cta:hover{background:#B58A00;}
.nav-social{display:flex; gap:10px;}
.nav-social a{
  display:flex; align-items:center; justify-content:center;
  width:30px; height:30px; color:#CBD6E2; transition: color .15s;
}
.nav-social a:hover{color:var(--naranja);}
.nav-social svg{width:16px; height:16px; fill:currentColor;}
.menu-btn{display:none; background:none; border:none; color:var(--blanco); font-size:1.6rem; cursor:pointer;}

/* ---------- HERO ---------- */
.hero{
  position:relative; color:var(--blanco); overflow:hidden;
  min-height:88vh; display:flex; align-items:flex-end;
}
.hero::before{
  content:""; position:absolute; inset:0;
  background: url('../img/hero-obra.jpg') center/cover no-repeat;
  animation: hero-zoom 18s ease-out forwards;
  z-index:0;
}
.hero::after{
  content:""; position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(18,40,63,.35) 0%, rgba(18,40,63,.55) 55%, rgba(18,40,63,.92) 100%);
  z-index:1;
}
@keyframes hero-zoom{
  from{ transform: scale(1); }
  to{ transform: scale(1.12); }
}
@media (prefers-reduced-motion: reduce){
  .hero::before{ animation:none; }
}
.hero-inner{ padding: 60px 0 68px; width:100%; position:relative; z-index:2; }
.hero-eyebrow{
  display:flex; align-items:center; gap:10px;
  font-size:0.85rem; color:var(--naranja); font-weight:600; margin-bottom:18px;
}
.hero-eyebrow::before{content:""; width:26px; height:2px; background:var(--naranja); display:inline-block;}
.hero h1{
  font-size:clamp(2.4rem, 5.2vw, 4rem);
  max-width:22ch;
  margin-bottom:22px;
}
.hero p{
  max-width:46ch; font-size:1.08rem; color:#E6ECF2; margin-bottom:30px;
}
.hero-actions{display:flex; gap:16px; flex-wrap:wrap;}
.btn{
  display:inline-block; padding:14px 26px; font-weight:600; font-size:0.95rem;
  border:2px solid transparent; transition: all .15s;
}
.btn-primary{background:var(--naranja); color:var(--blanco);}
.btn-primary:hover{background:#B58A00;}
.btn-outline{border-color:rgba(255,255,255,.6); color:var(--blanco);}
.btn-outline:hover{border-color:var(--blanco); background:rgba(255,255,255,.08);}

/* ---------- STAT / VALUE STRIP ---------- */
.value-strip{
  background:var(--azul-osc); color:var(--blanco);
  border-top:1px solid rgba(255,255,255,.1);
}
.value-strip .wrap{
  display:grid; grid-template-columns: 1.3fr 1fr 1fr 1fr;
  gap:0;
}
.value-cell{ padding:30px 26px; border-left:1px solid rgba(255,255,255,.12); }
.value-cell:first-child{border-left:none;}
.value-cell h3{ font-size:1.05rem; color:var(--naranja); margin-bottom:6px; font-family:'Inter'; font-weight:600; letter-spacing:0; }
.value-cell p{font-size:0.88rem; color:#C6D0DA;}

/* ---------- SECTION HEADERS ---------- */
section{padding:96px 0;}
.section-head{
  display:flex; justify-content:space-between; align-items:flex-end;
  gap:40px; margin-bottom:52px; border-bottom:1px solid var(--linea); padding-bottom:26px;
}
.section-head h2{ font-size:clamp(2rem, 4vw, 2.9rem); max-width:16ch; color:var(--azul-osc);}
.section-head .lead{max-width:34ch; font-size:0.98rem; color:var(--gris-concreto);}

/* ---------- NOVIDESA / PRODUCTS ---------- */
.novidesa{background:var(--blanco);}
.nov-grid{
  display:grid; grid-template-columns: 1.1fr 1fr; gap:56px; align-items:center;
}
.nov-copy p{color:var(--gris-concreto); margin-bottom:18px; font-size:1.02rem;}
.nov-copy p:first-child{
  font-size:1.18rem; color:var(--azul-osc); font-weight:500;
}
.applications{
  list-style:none; margin-top:26px; border-top:1px solid var(--linea);
}
.applications li{
  padding:16px 0; border-bottom:1px solid var(--linea);
  display:flex; align-items:baseline; gap:16px; font-size:1rem; color:var(--azul-osc);
}
.applications li .n{
  font-family:'Barlow Condensed'; font-weight:700; color:var(--naranja); font-size:1.1rem; width:28px; flex:none;
}
.nov-visual{
  background:var(--azul); position:relative; padding:18px;
}
.nov-visual img{width:100%; height:auto; display:block;}
.nov-visual .tag{
  position:absolute; bottom:-16px; left:18px; background:var(--naranja); color:var(--blanco);
  padding:10px 18px; font-family:'Barlow Condensed'; font-weight:600; font-size:1rem;
}

/* ---------- BENEFITS ---------- */
.benefits{background:var(--gris-claro);}
.benefit-row{
  display:grid; grid-template-columns:repeat(4, 1fr);
  border-top:1px solid var(--linea); border-left:1px solid var(--linea);
}
.benefit{
  background:var(--crema); padding:34px 26px; border-right:1px solid var(--linea); border-bottom:1px solid var(--linea);
}
.benefit .num{font-family:'Barlow Condensed'; font-size:0.85rem; color:var(--naranja); font-weight:600; margin-bottom:14px; display:block;}
.benefit h3{font-size:1.2rem; margin-bottom:10px; color:var(--azul-osc); font-family:'Inter'; font-weight:600;}
.benefit p{font-size:0.9rem; color:var(--gris-concreto);}

/* ---------- INTEGRALES / SERVICES ---------- */
.integrales{background:var(--azul); color:var(--blanco);}
.integrales .section-head h2, .integrales .section-head .lead{color:var(--blanco);}
.integrales .section-head{border-color:rgba(255,255,255,.2);}
.int-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:2px; background:rgba(255,255,255,.15);}
.int-card{background:var(--azul-osc); padding:36px 30px;}
.int-card .num{font-family:'Barlow Condensed'; font-size:1.6rem; color:var(--naranja); display:block; margin-bottom:14px;}
.int-card h3{font-size:1.3rem; margin-bottom:12px; font-family:'Inter'; font-weight:600;}
.int-card p{font-size:0.92rem; color:#C6D0DA;}
.int-grid-6{grid-template-columns:repeat(3,1fr);}
.int-grid-6 .int-card{padding:30px 26px;}
.int-grid-6 .int-card h3{font-size:1.1rem; margin-bottom:0;}

/* ---------- LINEA NOVIDESA (Makros / Ikos / Holmak) ---------- */
.linea-novidesa{background:var(--crema);}
.linea-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:0; border-top:1px solid var(--linea); border-left:1px solid var(--linea);}
.linea-card{background:var(--blanco); padding:34px 30px; border-right:1px solid var(--linea); border-bottom:1px solid var(--linea);}
.linea-tag{
  display:inline-block; font-size:0.72rem; font-weight:700; letter-spacing:.04em;
  color:var(--naranja); border:1px solid var(--naranja); padding:4px 10px; margin-bottom:18px;
}
.linea-card h3{
  font-size:1.7rem; color:var(--azul-osc); margin-bottom:16px; display:flex; flex-direction:column; gap:2px;
}
.linea-card h3 span{font-family:'Inter'; font-weight:500; font-size:0.85rem; color:var(--gris-concreto); letter-spacing:0;}
.linea-card p{font-size:0.9rem; color:var(--gris-concreto); margin-bottom:14px;}

/* ---------- SERVICIOS DE INGENIERIA ---------- */
.ing-servicios{background:var(--gris-claro);}
.ing-grid{display:grid; grid-template-columns:1fr 0.85fr; gap:56px; align-items:center;}
.ing-visual img{width:100%; border:8px solid var(--blanco);}

/* ---------- COST EFFICIENCY BANNER ---------- */
.costo{
  background:var(--crema); border-top:3px solid var(--naranja); border-bottom:3px solid var(--naranja);
  padding:80px 0;
}
.costo .wrap{display:grid; grid-template-columns: 0.9fr 1.4fr; gap:50px; align-items:center;}
.costo h2{font-size:clamp(1.9rem,3.6vw,2.6rem); color:var(--azul-osc);}
.costo p{font-size:1.08rem; color:var(--gris-concreto);}

/* ---------- PROJECTS ---------- */
.proyectos{background:var(--blanco);}
.filters{display:flex; gap:10px; margin-bottom:40px;}
.filter-btn{
  padding:9px 20px; font-size:0.86rem; font-weight:600; border:1px solid var(--linea); color:var(--gris-concreto);
  background:var(--crema); cursor:pointer; transition:.15s;
}
.filter-btn.active, .filter-btn:hover{background:var(--azul); color:var(--blanco); border-color:var(--azul);}
.proj-grid{
  display:grid; grid-template-columns:repeat(3, 1fr); gap:2px; background:var(--linea);
}
.proj-card{position:relative; background:var(--azul-osc); overflow:hidden; aspect-ratio:4/3;}
.proj-card img{width:100%; height:100%; object-fit:cover; opacity:0.88; transition:transform .35s ease, opacity .35s ease;}
.proj-card:hover img{transform:scale(1.06); opacity:1;}
.proj-card .overlay{
  position:absolute; inset:0; display:flex; align-items:flex-end;
  background:linear-gradient(0deg, rgba(18,40,63,.92) 0%, rgba(18,40,63,0.05) 60%);
  padding:22px;
}
.proj-card .overlay span{
  color:var(--blanco); font-family:'Barlow Condensed'; font-weight:600; font-size:1.15rem; line-height:1.15;
}
.proj-card .cat{
  position:absolute; top:16px; left:16px; background:var(--naranja); color:var(--blanco);
  font-size:0.72rem; font-weight:700; letter-spacing:.04em; padding:5px 10px;
}
.load-more{display:flex; justify-content:center; margin-top:44px;}

/* ---------- CTA ---------- */
.cta-final{
  background:var(--azul-osc); color:var(--blanco); text-align:left; padding:90px 0 0;
}
.cta-final h2{font-size:clamp(1.9rem,4vw,2.7rem);}

.contact-strip{
  display:grid; grid-template-columns:repeat(4,1fr); gap:0;
  margin-top:46px; border-top:1px solid rgba(255,255,255,.15); border-bottom:1px solid rgba(255,255,255,.15);
}
.contact-cell{padding:22px 24px 22px 0; border-right:1px solid rgba(255,255,255,.15);}
.contact-cell:last-child{border-right:none;}
.contact-cell h4{color:var(--naranja); font-size:0.78rem; letter-spacing:.04em; margin-bottom:8px; font-family:'Inter'; font-weight:600; text-transform:uppercase;}
.contact-line{font-size:0.98rem; color:#E6ECF2; margin-bottom:0;}
.contact-line a:hover{color:var(--naranja);}

.contact-form-wrap{max-width:640px; margin:56px 0 80px;}
.form-title{font-size:1.4rem; margin-bottom:20px;}
.contact-form{display:flex; flex-direction:column; gap:16px;}
.form-row{display:grid; grid-template-columns:1fr 1fr; gap:16px;}
.form-field{display:flex; flex-direction:column; gap:6px;}
.form-field label{font-size:0.82rem; color:#B9C6D6; font-weight:500;}
.form-field input, .form-field textarea{
  background:#18324a; border:1px solid rgba(255,255,255,.18); color:#fff;
  padding:12px 14px; font-family:'Inter', sans-serif; font-size:0.96rem; resize:vertical;
}
.form-field input:focus, .form-field textarea:focus{outline:2px solid var(--naranja); outline-offset:1px;}
.contact-form .btn{align-self:flex-start; border:none; cursor:pointer;}

.contact-map-full{width:100%; height:420px; border-top:1px solid rgba(255,255,255,.15);}
.contact-map-full iframe{width:100%; height:100%; display:block; filter:grayscale(0.15) contrast(1.05);}

@media (max-width:780px){
  .contact-strip{grid-template-columns:1fr 1fr;}
  .contact-cell:nth-child(2){border-right:none;}
  .contact-cell{border-bottom:1px solid rgba(255,255,255,.15);}
  .form-row{grid-template-columns:1fr;}
}

/* ---------- FOOTER ---------- */
footer{background:var(--azul-osc); color:#9FB0C0; border-top:1px solid rgba(255,255,255,.1);}
.footer-grid{
  display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px;
  padding:64px 0 40px;
}
.footer-brand .brand span{color:var(--blanco);}
.footer-brand p{margin-top:16px; font-size:0.9rem; max-width:32ch;}
footer h4{color:var(--blanco); font-size:0.92rem; margin-bottom:16px; font-family:'Inter'; font-weight:600;}
footer ul{list-style:none;}
footer li{margin-bottom:10px; font-size:0.9rem;}
footer a:hover{color:var(--blanco);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1); padding:22px 0; font-size:0.82rem;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;
}
.footer-bottom a{color:var(--naranja);}

.social-links{display:flex; gap:12px; margin-top:22px;}
.social-links a{
  display:flex; align-items:center; justify-content:center;
  width:38px; height:38px; border:1px solid rgba(255,255,255,.25);
  color:#C6D0DA; transition: all .15s;
}
.social-links a:hover{background:var(--naranja); border-color:var(--naranja); color:var(--azul-osc);}
.social-links svg{width:17px; height:17px; fill:currentColor;}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 900px){
  .navlinks{display:none;}
  .nav-social{display:none;}
  .menu-btn{display:block;}
  .value-strip .wrap{grid-template-columns:1fr 1fr;}
  .value-cell:nth-child(3){border-left:none;}
  .nov-grid{grid-template-columns:1fr;}
  .benefit-row{grid-template-columns:1fr 1fr;}
  .int-grid{grid-template-columns:1fr;}
  .costo .wrap{grid-template-columns:1fr;}
  .proj-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .contact-map-full{height:320px;}
}
@media (max-width: 560px){
  .proj-grid{grid-template-columns:1fr;}
  .benefit-row{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .hero{min-height:78vh;}
}