/* =========================================================
   CPS S.A. — Construcciones, Proyectos y Servicios
   Sistema de diseño — hoja de estilos principal
   ========================================================= */

:root{
  /* Paleta corporativa — azules y grises del isologo CPS */
  --blue-900:#062350;
  --blue-800:#003a80;
  --blue-700:#0048a0;   /* azul del logotipo */
  --blue-600:#1a5cb5;
  --blue-500:#3b78c9;
  --blue-100:#e8f0fa;

  /* Texto sobre fondos azules oscuros */
  --on-dark:#e9f1fb;
  --on-dark-soft:#c3d6ea;

  --gray-900:#1b2230;
  --gray-700:#4b5563;
  --gray-500:#7c8a99;
  --gray-300:#cfd6dd;
  --gray-200:#e4e8ec;
  --gray-100:#f4f6f8;

  --amber-500:#f0a400;
  --amber-600:#d38f00;

  --white:#ffffff;

  --font-head:'Poppins', 'Segoe UI', Arial, sans-serif;
  --font-body:'Inter', 'Segoe UI', Arial, sans-serif;

  --radius-sm:6px;
  --radius-md:12px;
  --radius-lg:20px;

  --shadow-sm:0 2px 8px rgba(11,41,71,.08);
  --shadow-md:0 8px 24px rgba(11,41,71,.12);
  --shadow-lg:0 16px 48px rgba(11,41,71,.18);

  --container:1180px;
}

*,*::before,*::after{box-sizing:border-box;}
[hidden]{display:none!important;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--gray-900);
  background:var(--white);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{
  font-family:var(--font-head);
  color:var(--blue-900);
  line-height:1.25;
  margin:0 0 .5em;
  font-weight:600;
}
h1{font-size:clamp(2.1rem,4vw,3.2rem);font-weight:700;}
h2{font-size:clamp(1.6rem,3vw,2.3rem);}
h3{font-size:1.25rem;}
p{margin:0 0 1em;color:var(--gray-700);}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:88px 0;}
.section-sm{padding:56px 0;}
.section-tight{padding:40px 0;}
.bg-light{background:var(--gray-100);}
.bg-blue{background:var(--blue-900);color:var(--on-dark);}
.bg-blue h1,.bg-blue h2,.bg-blue h3{color:var(--white);}
.bg-blue p{color:var(--on-dark);}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-head);
  font-size:.78rem;
  font-weight:600;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--amber-600);
  margin-bottom:14px;
}
.eyebrow::before{
  content:'';
  width:26px;height:2px;background:var(--amber-500);
  display:inline-block;
}
.bg-blue .eyebrow{color:var(--amber-500);}

.lede{font-size:1.15rem;color:var(--gray-700);max-width:640px;}
/* Texto sobre fondos oscuros: siempre claro para asegurar contraste */
.bg-blue .lede,.page-header .lede,.page-header p,.cta-band p{color:var(--on-dark);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 28px;
  border-radius:var(--radius-sm);
  font-family:var(--font-head);
  font-weight:600;
  font-size:.95rem;
  border:2px solid transparent;
  cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--amber-500);color:var(--blue-900);}
.btn-primary:hover{background:var(--amber-600);transform:translateY(-2px);box-shadow:var(--shadow-md);}
.btn-outline{border-color:rgba(255,255,255,.55);color:var(--white);}
.btn-outline:hover{background:rgba(255,255,255,.12);transform:translateY(-2px);}
.btn-outline-dark{border-color:var(--blue-700);color:var(--blue-700);}
.btn-outline-dark:hover{background:var(--blue-700);color:var(--white);transform:translateY(-2px);}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(6px);
  border-bottom:1px solid var(--gray-200);
}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 0;
}
.brand{display:flex;align-items:center;gap:12px;}
.brand img{height:38px;width:auto;}

.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  display:inline-block;
  padding:10px 16px;
  font-family:var(--font-head);
  font-weight:500;
  font-size:.92rem;
  color:var(--gray-700);
  border-radius:var(--radius-sm);
  transition:background .15s ease, color .15s ease;
}
.nav-links a:hover{background:var(--blue-100);color:var(--blue-800);}
.nav-links a.active{color:var(--blue-800);background:var(--blue-100);font-weight:600;}

.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:var(--radius-sm);
  border:1px solid var(--gray-200);background:var(--white);
  align-items:center;justify-content:center;
  cursor:pointer;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:'';display:block;width:20px;height:2px;background:var(--blue-900);
  position:relative;transition:all .2s ease;
}
.nav-toggle span::before{position:absolute;top:-6px;}
.nav-toggle span::after{position:absolute;top:6px;}

@media(max-width:960px){
  .nav-links{
    position:fixed;inset:70px 0 0 0;
    background:var(--white);
    flex-direction:column;
    align-items:stretch;
    padding:16px;
    gap:4px;
    transform:translateX(100%);
    transition:transform .25s ease;
    box-shadow:var(--shadow-lg);
    overflow-y:auto;
  }
  .nav-links.open{transform:translateX(0);}
  .nav-links a{padding:14px 16px;font-size:1rem;}
  .nav-toggle{display:flex;}
  .brand img{height:32px;}
}

/* ---------- Hero ---------- */
/* Portada clara: el boceto de obra en azul de marca se apoya sobre el borde inferior,
   como una lámina; el texto ocupa la columna izquierda. */
.hero{
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(900px 520px at 78% 30%, rgba(0,72,160,.08), transparent 70%),
    linear-gradient(170deg,#ffffff 0%,#f3f7fc 55%,#e9f0f9 100%);
  border-bottom:1px solid var(--gray-200);
}
.hero-inner{
  position:relative;z-index:2;
  padding:72px 0 0;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:32px;
  align-items:center;
}
.hero-inner > div:first-child{padding-bottom:64px;}
.hero h1{color:var(--blue-900);}
.hero-art{position:relative;z-index:2;align-self:end;display:flex;justify-content:center;}
.hero-art img{display:block;width:auto;max-width:100%;max-height:640px;height:auto;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px;}
.hero .hero-stats{border-top:1px solid var(--gray-200);}
.hero .hero-stat strong{color:var(--blue-700);}
.hero .hero-stat span{color:var(--gray-500);}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:18px;margin-top:44px;
  border-top:1px solid rgba(255,255,255,.18);
  padding-top:28px;
}
.hero-stat strong{
  display:block;font-family:var(--font-head);font-size:1.9rem;font-weight:700;color:var(--amber-500);
}
.hero-stat span{font-size:.82rem;color:var(--on-dark-soft);letter-spacing:.02em;}

@media(max-width:900px){
  .hero-inner{grid-template-columns:1fr;padding-top:48px;gap:8px;}
  .hero-inner > div:first-child{padding-bottom:32px;}
  .hero-art img{max-height:480px;}
  .hero-stats{grid-template-columns:1fr 1fr 1fr;gap:12px;}
}

/* ---------- Page header (secondary pages) ---------- */
.page-header{
  background:linear-gradient(160deg,var(--blue-900) 0%,var(--blue-700) 100%);
  color:var(--white);
  padding:64px 0 56px;
  position:relative;overflow:hidden;
}
.page-header h1{color:var(--white);margin-bottom:10px;}
.breadcrumb{font-size:.85rem;color:var(--on-dark-soft);margin-bottom:16px;}
.breadcrumb a{color:var(--amber-500);}

/* ---------- Cards ---------- */
.grid{display:grid;gap:28px;}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
@media(max-width:960px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:640px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
}

.card{
  background:var(--white);
  border:1px solid var(--gray-200);
  border-radius:var(--radius-md);
  padding:32px 28px;
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  height:100%;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:transparent;}
.card .icon-badge{
  width:56px;height:56px;border-radius:14px;
  background:var(--blue-100);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:20px;
}
.card .icon-badge img{width:28px;height:28px;}
.card h3{margin-bottom:10px;}
.card p{margin-bottom:0;font-size:.95rem;}
.card a.card-link{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:16px;font-weight:600;font-size:.88rem;color:var(--blue-700);
  font-family:var(--font-head);
}

.card-flat{
  background:var(--gray-100);
  border-radius:var(--radius-md);
  padding:28px;
}

/* ---------- Obra card ---------- */
.obra-card{
  background:var(--white);
  border:1px solid var(--gray-200);
  border-radius:var(--radius-md);
  overflow:hidden;
  transition:transform .2s ease, box-shadow .2s ease;
  height:100%;
  display:flex;flex-direction:column;
}
.obra-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.obra-media{
  height:150px;
  background:linear-gradient(135deg,var(--blue-800),var(--blue-600));
  display:flex;align-items:center;justify-content:center;
  position:relative;
}
.obra-media img{width:56px;height:56px;filter:brightness(0) invert(1);opacity:.92;}
.obra-tag{
  position:absolute;top:14px;left:14px;
  background:rgba(255,255,255,.16);
  color:var(--white);
  font-family:var(--font-head);
  font-size:.7rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;
  padding:5px 10px;border-radius:100px;
  backdrop-filter:blur(4px);
}
.obra-body{padding:22px 22px 24px;flex:1;display:flex;flex-direction:column;}
.obra-body h3{font-size:1.05rem;margin-bottom:8px;}
.obra-meta{
  display:flex;flex-wrap:wrap;gap:8px 16px;
  font-size:.8rem;color:var(--gray-500);
  margin-top:auto;padding-top:14px;border-top:1px dashed var(--gray-200);
}
.obra-meta span{display:flex;align-items:center;gap:6px;}
.obra-meta img{width:14px;height:14px;opacity:.7;}

/* ---------- Filtro de obras ---------- */
.filtros{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:36px;}
.filtro{
  padding:10px 20px;border-radius:100px;
  border:1px solid var(--gray-300);background:var(--white);
  font-family:var(--font-head);font-weight:500;font-size:.88rem;color:var(--gray-700);
  cursor:pointer;transition:background .15s ease,color .15s ease,border-color .15s ease;
}
.filtro:hover{border-color:var(--blue-500);color:var(--blue-700);}
.filtro.active{background:var(--blue-700);border-color:var(--blue-700);color:var(--white);}

/* ---------- Tabla de obras ---------- */
.tabla-wrap{
  overflow-x:auto;background:var(--white);
  border:1px solid var(--gray-200);border-radius:var(--radius-md);
}
.tabla-obras{width:100%;border-collapse:collapse;min-width:820px;font-size:.9rem;}
.tabla-obras th{
  background:var(--blue-900);color:var(--white);text-align:left;padding:14px 16px;
  font-family:var(--font-head);font-size:.74rem;font-weight:600;
  text-transform:uppercase;letter-spacing:.06em;
}
.tabla-obras td{padding:13px 16px;border-bottom:1px solid var(--gray-200);color:var(--gray-700);vertical-align:top;}
.tabla-obras tbody tr:last-child td{border-bottom:none;}
.tabla-obras tbody tr:hover{background:var(--blue-100);}
.tabla-obras .anio{font-family:var(--font-head);font-weight:600;color:var(--blue-700);white-space:nowrap;}
.tabla-obras .obra{color:var(--gray-900);font-weight:500;}
.badge-ejec{
  display:inline-block;margin-left:8px;padding:2px 9px;border-radius:100px;
  background:var(--amber-500);color:var(--blue-900);
  font-family:var(--font-head);font-size:.66rem;font-weight:700;
  text-transform:uppercase;letter-spacing:.04em;
}

/* ---------- Timeline ---------- */
.timeline{border-left:3px solid var(--blue-100);margin-left:8px;padding-left:32px;}
.timeline-item{position:relative;padding-bottom:36px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
  content:'';position:absolute;left:-40px;top:2px;
  width:16px;height:16px;border-radius:50%;
  background:var(--amber-500);border:3px solid var(--white);
  box-shadow:0 0 0 3px var(--blue-100);
}
.timeline-item h4{margin-bottom:6px;color:var(--blue-800);font-family:var(--font-head);}
.timeline-year{
  display:inline-block;font-family:var(--font-head);font-weight:700;
  color:var(--blue-700);font-size:.85rem;margin-bottom:4px;letter-spacing:.04em;
}

/* ---------- Data table (Datos de la empresa) ---------- */
.data-table{width:100%;border-collapse:collapse;}
.data-table tr{border-bottom:1px solid var(--gray-200);}
.data-table tr:last-child{border-bottom:none;}
.data-table th,.data-table td{text-align:left;padding:14px 16px;font-size:.92rem;}
.data-table th{
  width:38%;color:var(--gray-500);font-weight:600;font-family:var(--font-head);
  font-size:.8rem;text-transform:uppercase;letter-spacing:.05em;
}
.data-table td{color:var(--gray-900);font-weight:500;}

/* ---------- Clients ---------- */
.client-badge{
  display:flex;align-items:center;justify-content:center;text-align:center;
  padding:26px 18px;
  background:var(--white);
  border:1px solid var(--gray-200);
  border-radius:var(--radius-md);
  font-family:var(--font-head);
  font-weight:600;
  color:var(--blue-800);
  font-size:.92rem;
  min-height:96px;
  transition:box-shadow .2s ease, transform .2s ease, border-color .2s ease;
}
.client-badge:hover{box-shadow:var(--shadow-sm);transform:translateY(-2px);border-color:var(--blue-100);}

/* ---------- Split / Feature sections ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
@media(max-width:900px){.split{grid-template-columns:1fr;gap:36px;}}
.split img{border-radius:var(--radius-lg);}
.checklist li{
  display:flex;gap:12px;align-items:flex-start;
  margin-bottom:14px;font-size:.98rem;color:var(--gray-700);
}
.checklist img{width:20px;height:20px;margin-top:2px;flex-shrink:0;}

/* ---------- Rubros (Servicios) ---------- */
.rubro{
  display:grid;grid-template-columns:auto 1fr;gap:24px;
  padding:32px;border-radius:var(--radius-lg);
  background:var(--white);border:1px solid var(--gray-200);
  margin-bottom:24px;
}
.rubro .icon-badge{width:64px;height:64px;border-radius:16px;background:var(--blue-900);}
.rubro .icon-badge img{width:32px;height:32px;filter:brightness(0) invert(1);}
.rubro-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px;}
.rubro-list span{
  background:var(--gray-100);color:var(--gray-700);
  font-size:.82rem;padding:7px 14px;border-radius:100px;
  font-family:var(--font-head);font-weight:500;
}
@media(max-width:640px){.rubro{grid-template-columns:1fr;}}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--blue-800),var(--blue-900));
  border-radius:var(--radius-lg);
  padding:56px;
  display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;
  color:var(--white);
}
.cta-band h2{color:var(--white);margin-bottom:8px;}
.cta-band p{margin-bottom:0;}

/* ---------- Contact ---------- */
.contact-card{
  display:flex;gap:16px;align-items:flex-start;
  padding:24px;background:var(--white);
  border:1px solid var(--gray-200);border-radius:var(--radius-md);
  margin-bottom:16px;
}
.contact-card .icon-badge{width:48px;height:48px;border-radius:12px;flex-shrink:0;}
.contact-card .icon-badge img{width:22px;height:22px;}
.contact-card h4{margin-bottom:4px;font-family:var(--font-head);color:var(--blue-900);}
.contact-card p{margin-bottom:0;font-size:.92rem;}

.map-frame{
  position:relative;
  border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--gray-200);
  height:100%;min-height:320px;background:var(--blue-100);
}
.map-frame iframe{position:relative;z-index:1;width:100%;height:100%;min-height:320px;border:0;display:block;}
/* se ve sólo si el mapa embebido no puede cargarse */
.map-fallback{
  position:absolute;inset:0;z-index:0;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  text-align:center;padding:24px;color:var(--blue-800);
}
.map-fallback img{width:32px;height:32px;opacity:.7;}
.map-fallback strong{font-family:var(--font-head);font-size:.95rem;}
.map-fallback span{font-size:.85rem;color:var(--gray-500);}

/* ---------- Footer ---------- */
.site-footer{background:var(--blue-900);color:var(--on-dark-soft);padding-top:64px;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.12);
}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:560px){.footer-grid{grid-template-columns:1fr;}}
.footer-brand img{height:84px;width:auto;margin-bottom:18px;}
.footer-brand p{color:var(--on-dark-soft);font-size:.9rem;max-width:280px;}
.footer-col h4{
  color:var(--white);font-family:var(--font-head);font-size:.85rem;
  text-transform:uppercase;letter-spacing:.06em;margin-bottom:16px;
}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:var(--on-dark-soft);font-size:.92rem;transition:color .15s ease;}
.footer-col a:hover{color:var(--amber-500);}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;
  padding:22px 0;font-size:.82rem;color:#96acc4;
}

/* ---------- Utilities ---------- */
.text-center{text-align:center;}
.mx-auto{margin-left:auto;margin-right:auto;}
.mt-0{margin-top:0;}
.mb-0{margin-bottom:0;}
.small{font-size:.85rem;color:var(--gray-500);}
.divider{height:1px;background:var(--gray-200);margin:40px 0;}
.section-head{max-width:680px;margin:0 auto 48px;text-align:center;}
.section-head.left{margin:0 0 40px;text-align:left;}

.fade-in{opacity:0;transform:translateY(16px);transition:opacity .6s ease, transform .6s ease;}
.fade-in.in-view{opacity:1;transform:translateY(0);}