/* ===================================================================
   Fundición Navarro — hoja de estilos principal
   =================================================================== */

:root {
  --azul: #1e73be;
  --azul-oscuro: #14568f;
  --azul-claro: #eaf3fb;
  --gris-950: #1c1e22;
  --gris-900: #272727;
  --gris-700: #43474d;
  --gris-500: #6b6f75;
  --gris-300: #b9bdc3;
  --gris-100: #f2f4f6;
  --blanco: #ffffff;
  --whatsapp: #25d366;
  --whatsapp-oscuro: #1da851;
  --ambar: #e8871e;
  --radio: 8px;
  --sombra: 0 10px 30px rgba(28, 30, 34, 0.10);
  --sombra-sm: 0 2px 10px rgba(28, 30, 34, 0.08);
  --ancho-max: 1200px;
  --ff-titulo: "Roboto Condensed", "Arial Narrow", sans-serif;
  --ff-texto: "Roboto", -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  margin: 0;
  max-width: 100%;
  overflow-x: hidden;
  font-family: var(--ff-texto);
  color: var(--gris-700);
  background: var(--blanco);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 {
  font-family: var(--ff-titulo);
  color: var(--gris-950);
  line-height: 1.15;
  margin: 0 0 .6em;
  font-weight: 700;
  letter-spacing: .2px;
}
p { margin: 0 0 1em; }
.contenedor {
  max-width: var(--ancho-max);
  margin: 0 auto;
  padding: 0 20px;
}
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.saltar-enlace {
  position: fixed; top: -60px; left: 10px; z-index: 200;
  background: var(--azul); color: #fff; padding: 10px 16px; border-radius: var(--radio);
  transition: top .2s;
}
.saltar-enlace:focus { top: 10px; }

/* ---------- Barra superior ---------- */
.barra-superior {
  background: var(--gris-950);
  color: #c9ccd1;
  font-size: 13px;
}
.barra-superior .contenedor {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 38px;
  gap: 16px;
}
.barra-superior a { color: #c9ccd1; }
.barra-superior a:hover { color: #fff; }
.barra-superior__datos { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.barra-superior__datos span { display: inline-flex; align-items: center; gap: 6px; }
.barra-superior svg { width: 14px; height: 14px; color: var(--ambar); flex-shrink: 0; }

/* ---------- Encabezado ---------- */
.encabezado {
  position: sticky; top: 0; z-index: 100;
  background: #fff;
  box-shadow: var(--sombra-sm);
  max-width: 100vw;
}
.encabezado .contenedor { max-width: 1600px; }
.encabezado__fila {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
  gap: 10px;
}
.marca { display: flex; align-items: center; gap: 8px; flex-shrink: 0; min-width: 0; }
.marca__icono {
  width: 34px; height: 34px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(145deg, var(--azul), var(--azul-oscuro));
  border-radius: 9px; color: #fff;
}
.marca__icono svg { width: 19px; height: 19px; }
.marca__texto { font-family: var(--ff-titulo); line-height: 1.05; white-space: nowrap; }
.marca__texto strong {
  display: block; font-size: 16px; font-weight: 700; color: var(--gris-950);
  letter-spacing: .2px; text-transform: uppercase;
}
.marca__texto span { display: none; }

/* Navegación principal */
.nav-principal { display: none; min-width: 0; }
.nav-principal ul { display: flex; align-items: center; gap: 0; }
.nav-principal > ul > li { position: relative; }
.nav-principal > ul > li > a {
  display: flex; align-items: center; gap: 3px;
  padding: 8px 7px;
  font-family: var(--ff-titulo);
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0;
  color: var(--gris-900);
  border-radius: var(--radio);
  white-space: nowrap;
}
.nav-principal > ul > li > a:hover,
.nav-principal > ul > li.activo > a { color: var(--azul); background: var(--azul-claro); }
.nav-principal .chevron { width: 9px; height: 9px; transition: transform .15s; color: var(--gris-500); }
.nav-principal li:hover > a .chevron { transform: rotate(180deg); color: var(--azul); }

@media (min-width: 1500px) {
  .marca__texto span {
    display: block; font-size: 10.5px; color: var(--azul); letter-spacing: 1px;
    text-transform: uppercase; font-weight: 600;
  }
  .nav-principal > ul > li > a { padding: 10px 9px; font-size: 12.5px; letter-spacing: .2px; }
}

.submenu {
  position: absolute; top: 100%; left: 0; min-width: 240px;
  background: #fff; border-radius: var(--radio); box-shadow: var(--sombra);
  padding: 8px; opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: all .15s ease; border: 1px solid #ecedf0;
}
.nav-principal li:hover > .submenu,
.nav-principal li:focus-within > .submenu { opacity: 1; visibility: visible; transform: translateY(0); }
.submenu a {
  display: block; padding: 9px 12px; border-radius: 6px;
  font-size: 14px; font-weight: 500; color: var(--gris-700);
}
.submenu a:hover { background: var(--gris-100); color: var(--azul); }

.encabezado__acciones { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.encabezado__acciones .btn--whatsapp { padding: 8px 13px; font-size: 11px; }
.encabezado__acciones .btn--whatsapp svg { width: 14px; height: 14px; }
@media (min-width: 1500px) {
  .encabezado__acciones .btn--whatsapp { padding: 9px 16px; font-size: 12.5px; }
  .encabezado__acciones .btn--whatsapp svg { width: 15px; height: 15px; }
}
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--ff-titulo); font-weight: 700; text-transform: uppercase; letter-spacing: .4px;
  font-size: 14px; padding: 11px 20px; border-radius: 100px; border: none; cursor: pointer;
  transition: all .15s;
}
.btn svg { width: 17px; height: 17px; }
.btn--whatsapp { background: var(--whatsapp); color: #fff; box-shadow: 0 6px 16px rgba(37,211,102,.32); }
.btn--whatsapp:hover { background: var(--whatsapp-oscuro); }
.btn--azul { background: var(--azul); color: #fff; }
.btn--azul:hover { background: var(--azul-oscuro); }
.btn--outline { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,.55); }
.btn--outline:hover { background: rgba(255,255,255,.12); border-color: #fff; }
.btn--sm { padding: 8px 16px; font-size: 12.5px; }

.btn-menu {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: var(--radio); border: 1px solid #e2e4e8; background: #fff;
}
.btn-menu svg { width: 24px; height: 24px; color: var(--gris-900); }
.btn-menu .icono-cerrar { display: none; }
.btn-menu[aria-expanded="true"] .icono-abrir { display: none; }
.btn-menu[aria-expanded="true"] .icono-cerrar { display: block; }

/* Menú móvil */
.nav-movil {
  display: none; border-top: 1px solid #eceef1; background: #fff;
  max-height: 0; overflow: hidden; transition: max-height .25s ease;
}
.nav-movil.abierto { display: block; max-height: 1400px; }
.nav-movil .contenedor { padding: 12px 20px 20px; }
.nav-movil > ul > li { border-bottom: 1px solid #f0f1f3; }
.nav-movil > ul > li:last-child { border-bottom: none; }
.nav-movil-enlace {
  display: flex; align-items: center; justify-content: space-between;
  padding: 13px 4px; font-family: var(--ff-titulo); font-weight: 700; font-size: 15px;
  text-transform: uppercase; letter-spacing: .3px; color: var(--gris-950);
}
.nav-movil-enlace svg { width: 18px; height: 18px; color: var(--gris-500); transition: transform .2s; }
details[open] > .nav-movil-enlace svg { transform: rotate(180deg); }
.nav-movil .submenu-movil { padding: 0 0 10px 10px; }
.nav-movil .submenu-movil a { display: block; padding: 9px 4px; font-size: 14px; color: var(--gris-700); }
.nav-movil .submenu-movil a:hover { color: var(--azul); }
.nav-movil .btn { width: 100%; justify-content: center; margin-top: 14px; }

@media (min-width: 1180px) {
  .nav-principal { display: block; }
  .btn-menu { display: none; }
  .nav-movil { display: none !important; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative; z-index: 0; color: #fff; overflow: hidden;
  min-height: 480px; display: flex; align-items: center;
  background: var(--gris-950);
}
.hero__fondo {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
}
.hero__velo {
  position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(20,22,26,.94) 8%, rgba(20,22,26,.78) 42%, rgba(30,115,190,.42) 100%);
}
.hero__contenido { position: relative; z-index: 2; max-width: 620px; padding: 80px 0; }
.hero__kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--ff-titulo); font-size: 13px; font-weight: 700; letter-spacing: 1.6px;
  text-transform: uppercase; color: var(--ambar); margin-bottom: 18px;
}
.hero__kicker::before { content: ""; width: 26px; height: 2px; background: var(--ambar); }
.hero h1 { font-size: clamp(32px, 5vw, 52px); color: #fff; margin-bottom: 18px; }
.hero p { font-size: 17px; color: #dfe2e6; max-width: 540px; }
.hero__acciones { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.hero--pagina { min-height: 300px; }
.hero--pagina .hero__contenido { padding: 56px 0; }
.hero--pagina h1 { font-size: clamp(28px, 4.5vw, 42px); }
.migas { display: flex; gap: 8px; align-items: center; font-size: 13px; color: #cfd3d8; margin-bottom: 14px; }
.migas a { color: #cfd3d8; } .migas a:hover { color: #fff; }

/* ---------- Secciones genéricas ---------- */
.seccion { padding: 64px 0; }
.seccion--alt { background: var(--gris-100); }
.seccion--oscura { background: var(--gris-950); color: #cdd0d4; }
.seccion--oscura h2, .seccion--oscura h3 { color: #fff; }
.cabecera-seccion { max-width: 700px; margin: 0 0 40px; }
.cabecera-seccion.centro { margin-left: auto; margin-right: auto; text-align: center; }
.kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--ff-titulo); font-size: 13px; font-weight: 700; letter-spacing: 1.6px;
  text-transform: uppercase; color: var(--azul); margin-bottom: 12px;
}
.kicker::before { content: ""; width: 22px; height: 2px; background: var(--azul); }
.cabecera-seccion.centro .kicker { justify-content: center; }
.cabecera-seccion.centro .kicker::before { display: none; }
.seccion--oscura .kicker { color: var(--ambar); }
.seccion--oscura .kicker::before { background: var(--ambar); }
h2.titulo-seccion { font-size: clamp(24px, 3.4vw, 34px); }
.lead { font-size: 17px; color: var(--gris-500); }
.seccion--oscura .lead { color: #b7bbc0; }

/* ---------- Grillas / tarjetas ---------- */
.grilla { display: grid; gap: 24px; }
.grilla--3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grilla--2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grilla--4 { grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }

.tarjeta {
  background: #fff; border: 1px solid #eceef1; border-radius: var(--radio);
  padding: 28px 24px; box-shadow: var(--sombra-sm); transition: transform .18s, box-shadow .18s;
}
.tarjeta:hover { transform: translateY(-4px); box-shadow: var(--sombra); }
.tarjeta__icono {
  width: 48px; height: 48px; border-radius: 10px; background: var(--azul-claro); color: var(--azul);
  display: flex; align-items: center; justify-content: center; margin-bottom: 16px;
}
.tarjeta__icono svg { width: 24px; height: 24px; }
.tarjeta h3 { font-size: 18px; margin-bottom: 8px; }
.tarjeta p { font-size: 14.5px; color: var(--gris-500); margin-bottom: 0; }

.tarjeta-img { background: #fff; border: 1px solid #eceef1; border-radius: var(--radio); overflow: hidden; box-shadow: var(--sombra-sm); }
.tarjeta-img img { aspect-ratio: 4/3; object-fit: cover; width: 100%; }
.tarjeta-img__cuerpo { padding: 20px; }
.tarjeta-img h3 { font-size: 17px; margin-bottom: 6px; }
.tarjeta-img p { font-size: 14px; color: var(--gris-500); margin-bottom: 10px; }
.tarjeta-img a { font-size: 13.5px; font-weight: 700; color: var(--azul); display: inline-flex; align-items: center; gap: 5px; }
.tarjeta-img a svg { width: 14px; height: 14px; }

/* Lista con check */
.lista-check { display: grid; gap: 12px; }
.lista-check li { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; color: var(--gris-700); }
.lista-check svg { width: 19px; height: 19px; color: var(--azul); flex-shrink: 0; margin-top: 2px; }
.seccion--oscura .lista-check li { color: #d6d9dd; }

/* Chips de materiales */
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  font-size: 13.5px; font-weight: 600; color: var(--azul-oscuro); background: var(--azul-claro);
  padding: 9px 16px; border-radius: 100px; border: 1px solid rgba(30,115,190,.18);
}

/* Split imagen/texto */
.split { display: grid; gap: 40px; align-items: center; }
@media (min-width: 880px) { .split { grid-template-columns: 1fr 1fr; } .split--inv { direction: rtl; } .split--inv > * { direction: ltr; } }
.split__media img { border-radius: var(--radio); box-shadow: var(--sombra); }
.split__media { position: relative; }
.split__media--par { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

/* Timeline historia */
.linea-tiempo { display: grid; gap: 28px; position: relative; }
.linea-tiempo::before { content: ""; position: absolute; left: 15px; top: 6px; bottom: 6px; width: 2px; background: #dfe3e7; }
.linea-tiempo__item { position: relative; padding-left: 48px; }
.linea-tiempo__item::before {
  content: ""; position: absolute; left: 7px; top: 4px; width: 17px; height: 17px; border-radius: 50%;
  background: var(--azul); border: 3px solid #fff; box-shadow: 0 0 0 2px var(--azul);
}
.linea-tiempo__anio {
  font-family: var(--ff-titulo); font-weight: 700; color: var(--azul); font-size: 14px;
  letter-spacing: .5px; text-transform: uppercase; margin-bottom: 4px; display: block;
}

/* Galería */
.galeria { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
.galeria img {
  width: 100%; aspect-ratio: 1/1; object-fit: cover; border-radius: 8px; border: 1px solid #eceef1;
  transition: transform .2s;
}
.galeria a:hover img { transform: scale(1.04); }
.galeria a { cursor: zoom-in; display: block; }

/* Lightbox de galería */
body.lightbox-abierto { overflow: hidden; }
.lightbox {
  position: fixed; inset: 0; z-index: 300;
  display: flex; align-items: center; justify-content: center;
  padding: 56px 24px;
  background: rgba(12, 13, 16, .94);
  opacity: 0; visibility: hidden;
  transition: opacity .2s ease;
}
.lightbox.activo { opacity: 1; visibility: visible; }
.lightbox__img {
  max-width: 100%; max-height: 100%;
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
}
.lightbox__cerrar {
  position: absolute; top: 18px; right: 18px;
  width: 46px; height: 46px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.28);
  color: #fff; cursor: pointer; transition: background .15s;
}
.lightbox__cerrar:hover, .lightbox__cerrar:focus-visible { background: rgba(255,255,255,.24); }
.lightbox__cerrar svg { width: 20px; height: 20px; }

/* Tabla de normas */
.tabla-envoltorio { overflow-x: auto; border-radius: var(--radio); border: 1px solid #eceef1; box-shadow: var(--sombra-sm); }
table.normas { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 640px; }
table.normas caption { text-align: left; padding: 14px 16px; font-family: var(--ff-titulo); font-weight: 700; background: var(--gris-100); }
table.normas th, table.normas td { padding: 12px 16px; border-bottom: 1px solid #eef0f2; text-align: left; }
table.normas thead th { background: var(--gris-950); color: #fff; font-family: var(--ff-titulo); text-transform: uppercase; font-size: 12.5px; letter-spacing: .5px; }
table.normas tbody tr:nth-child(even) { background: #fafbfc; }

/* Contacto */
.contacto-grid { display: grid; gap: 24px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.tarjeta-contacto { background: #fff; border: 1px solid #eceef1; border-radius: var(--radio); padding: 26px; box-shadow: var(--sombra-sm); }
.tarjeta-contacto__icono { width: 42px; height: 42px; border-radius: 10px; background: var(--azul-claro); color: var(--azul); display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.tarjeta-contacto__icono svg { width: 22px; height: 22px; }
.tarjeta-contacto h3 { font-size: 15.5px; text-transform: uppercase; letter-spacing: .3px; margin-bottom: 8px; }
.tarjeta-contacto p { font-size: 14.5px; margin-bottom: 4px; }
.tarjeta-contacto a { color: var(--azul); font-weight: 600; }
.tarjeta-contacto a:hover { text-decoration: underline; }

.personas-grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.persona { background: #fff; border: 1px solid #eceef1; border-radius: var(--radio); padding: 20px 22px; }
.persona__rol { font-size: 12px; font-weight: 700; color: var(--azul); text-transform: uppercase; letter-spacing: .5px; margin-bottom: 4px; }
.persona__nombre { font-family: var(--ff-titulo); font-weight: 700; font-size: 16.5px; color: var(--gris-950); margin-bottom: 8px; }
.persona a { display: block; font-size: 13.5px; color: var(--gris-500); margin-top: 3px; }
.persona a:hover { color: var(--azul); }

.mapa-envoltorio { border-radius: var(--radio); overflow: hidden; box-shadow: var(--sombra); border: 1px solid #eceef1; }
.mapa-envoltorio iframe { width: 100%; height: 380px; border: 0; display: block; }

/* CTA final */
.cta-final {
  background: linear-gradient(120deg, var(--azul-oscuro), var(--azul));
  color: #fff; border-radius: 16px; padding: 48px; text-align: center;
}
.cta-final h2 { color: #fff; }
.cta-final p { color: #e3edf7; max-width: 560px; margin-left: auto; margin-right: auto; }
.cta-final .hero__acciones { justify-content: center; }

/* ---------- Footer ---------- */
.pie { background: var(--gris-950); color: #b6bac0; padding: 60px 0 0; }
.pie__grid { display: grid; gap: 36px; grid-template-columns: 1.3fr 1fr 1fr 1.1fr; padding-bottom: 44px; border-bottom: 1px solid #34363b; }
.pie__marca { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.pie__marca strong { font-family: var(--ff-titulo); color: #fff; font-size: 19px; text-transform: uppercase; }
.pie p { font-size: 14px; color: #92969c; }
.pie h4 { color: #fff; font-family: var(--ff-titulo); font-size: 14px; text-transform: uppercase; letter-spacing: .5px; margin-bottom: 16px; }
.pie ul { display: grid; gap: 9px; }
.pie a { font-size: 14px; color: #b6bac0; }
.pie a:hover { color: #fff; }
.pie__contacto li { display: flex; gap: 9px; font-size: 14px; align-items: flex-start; }
.pie__contacto svg { width: 16px; height: 16px; color: var(--ambar); flex-shrink: 0; margin-top: 3px; }
.pie__inferior {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px;
  padding: 20px 0; font-size: 12.5px; color: #82868c;
}
.pie__inferior a { color: #82868c; } .pie__inferior a:hover { color: #fff; }

@media (max-width: 880px) {
  .pie__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .pie__grid { grid-template-columns: 1fr; }
  .barra-superior__datos span:nth-child(2) { display: none; }
}

/* ---------- WhatsApp flotante ---------- */
.wa-flotante {
  position: fixed; bottom: 22px; right: 22px; z-index: 150;
  width: 60px; height: 60px; border-radius: 50%;
  background: var(--whatsapp); color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 24px rgba(37,211,102,.45);
  animation: wa-pulso 2.4s infinite;
}
.wa-flotante svg { width: 30px; height: 30px; }
.wa-flotante:hover { background: var(--whatsapp-oscuro); }
@keyframes wa-pulso {
  0% { box-shadow: 0 0 0 0 rgba(37,211,102,.45); }
  70% { box-shadow: 0 0 0 14px rgba(37,211,102,0); }
  100% { box-shadow: 0 0 0 0 rgba(37,211,102,0); }
}

/* Utilidades responsive */
@media (max-width: 780px) {
  .hero__contenido { padding: 56px 0; }
  .seccion { padding: 48px 0; }
  .cta-final { padding: 34px 22px; }
}