:root{
  --azul:#0b3d91;
  --azul-600:#0a3278;
  --verde:#00a859;
  --verde-600:#00914d;
  --gris:#f7f8fa;
  --gris-2:#f2f5f9;
  --texto:#222;
  --borde:#e6e9ef;
  --shadow:0 10px 30px rgba(0,0,0,.06);
  --radius:16px;
}

/* Reset y tipografía base */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; font-family:system-ui, Arial, sans-serif;
  color:var(--texto); background:var(--gris); line-height:1.65;
  -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
}
h1,h2{line-height:1.25}
h1{font-size:clamp(1.8rem, 2.5vw, 2.4rem)}
h2{font-size:clamp(1.4rem, 1.8vw, 1.8rem)}
h3{font-size:clamp(1.05rem, 1.2vw, 1.2rem)}

/* Header: nuevo diseño con menú lateral */
header{
  background: linear-gradient(135deg, var(--azul) 0%, #1e3a8a 50%, var(--azul-600) 100%);
  color:#fff;
  display:flex; align-items:center; justify-content:center;
  position:relative;
  padding: 2rem 1.5rem;
  position:sticky; top:0; z-index:20;
  box-shadow: 0 12px 32px rgba(11,61,145,.25);
  min-height: 90px;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,.1);
}

/* Título principal centrado */
.header-title {
  text-align: center;
  flex: 1;
}

.header-title h1 {
  margin: 0;
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 900;
  text-shadow: 0 4px 8px rgba(0,0,0,.3);
  letter-spacing: -0.02em;
  color: #ffffff; /* Blanco sólido */
  display:flex; align-items:center; justify-content:center; gap:.75rem;
}


/* Logo circular antes del título del header */
.header-title h1::before{
  content:"";
  width: 80px; height: 80px;
  background: url('../img/logo2.png') center/cover no-repeat #fff;
  border-radius: 60%;
  box-shadow: 0 4px 10px rgba(0,0,0,.18);
  border: 2px solid rgba(255,255,255,.7);
  flex: 0 0 auto;
}

/* --- Menú lateral hamburguesa --- */
#site-nav {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
}

.nav-check {
  display: none;
}

.nav-burger {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 1001;
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  width: 50px;
  height: 50px;
  background: rgba(255,255,255,.15);
  border: 2px solid rgba(255,255,255,.3);
  border-radius: 12px;
  cursor: pointer;
  padding: 8px;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.nav-burger:hover {
  background: rgba(255,255,255,.25);
  transform: scale(1.05);
}

.nav-burger span {
  display: block;
  height: 3px;
  width: 100%;
  background: #fff;
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* Animación del botón hamburguesa */
.nav-check:checked ~ .nav-burger span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.nav-check:checked ~ .nav-burger span:nth-child(2) {
  opacity: 0;
}

.nav-check:checked ~ .nav-burger span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Menú lateral desplegable */
.nav-menu {
  position: fixed;
  top: 0;
  left: -380px;
  width: 380px;
  height: 100vh;
  background: linear-gradient(180deg, var(--azul) 0%, #1e3a8a 50%, var(--azul-600) 100%);
  box-shadow: 8px 0 32px rgba(0,0,0,.4);
  transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
  z-index: 999;
  backdrop-filter: blur(20px);
  border-right: 1px solid rgba(255,255,255,.1);
}

.nav-check:checked ~ .nav-menu {
  left: 0;
}

/* Header del menú lateral */
.nav-header {
  padding: 2.5rem 2rem 1.5rem;
  border-bottom: 1px solid rgba(255,255,255,.15);
  text-align: center;
  background: linear-gradient(135deg, rgba(255,255,255,.05) 0%, rgba(255,255,255,.02) 100%);
  backdrop-filter: blur(10px);
}

.nav-logo {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  background: #fff;
  padding: 8px;
  margin-bottom: 1.5rem;
  box-shadow: 0 12px 32px rgba(0,0,0,.4);
  border: 4px solid rgba(255,255,255,.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.nav-logo:hover {
  transform: scale(1.08);
  box-shadow: 0 16px 40px rgba(0,0,0,.5);
}

.nav-header h3 {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.4;
  text-shadow: 0 2px 4px rgba(0,0,0,.3);
  letter-spacing: -0.01em;
}

/* Lista de navegación lateral */
.nav-list {
  list-style: none;
  margin: 0;
  padding: 1rem 0;
}

.nav-list li {
  margin: 0;
}

.nav-list a {
  display: block;
  padding: 1.2rem 2rem;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.05rem;
  border-left: 4px solid transparent;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  letter-spacing: 0.01em;
}

.nav-list a:hover {
  background: linear-gradient(135deg, rgba(255,255,255,.12) 0%, rgba(255,255,255,.08) 100%);
  border-left-color: #fff;
  transform: translateX(8px);
  box-shadow: inset 0 0 20px rgba(255,255,255,.1);
}

.nav-list a:active {
  transform: translateX(4px);
}

.nav-list a:focus-visible {
  outline: 2px solid #fff;
  outline-offset: -2px;
}

/* Overlay para cerrar menú al hacer click fuera */
.nav-check:checked ~ .nav-menu::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,.5);
  z-index: -1;
}

/* Layout contenedor (más ancho y sombra suave) */
.container{
  background:#fff; border:1px solid var(--borde); border-radius:var(--radius);
  max-width:1100px; margin:2rem auto; padding:2rem 1.5rem;
  box-shadow: var(--shadow);
}

/* Titulares con acento (rayita) */
.container h2{
  margin:.25rem 0 1rem; position:relative; padding-bottom:.25rem;
}
.container h2::after{
  content:""; position:absolute; left:0; bottom:-6px; width:64px; height:4px;
  background: linear-gradient(90deg, var(--verde), var(--azul));
  border-radius:4px;
}

/* Subtítulos */
h3{margin:1rem 0 .6rem}
/* Grids */
.grid-2{display:grid; grid-template-columns:1fr 1fr; gap:1.25rem}
@media (max-width:900px){.grid-2{grid-template-columns:1fr}}

.cards{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  gap:1.1rem;
  align-items:stretch;            /* Estira todas las cards */
}

.card{
  border:1px solid var(--borde);
  border-radius:14px;
  padding:1rem 1.25rem;
  background:#fff;
  box-shadow:0 6px 16px rgba(0,0,0,.04);
  transition: transform .12s ease, box-shadow .12s ease;

  display:flex;                   /* Para empujar el botón abajo */
  flex-direction:column;
  min-height: 100%;               /* Ocupa toda la altura disponible */
}

.card:hover{
  transform:translateY(-3px);
  box-shadow:0 14px 28px rgba(0,0,0,.08);
}

.card .tag{font-size:.92rem; color:#555}

/* Contenido: títulos, párrafos, listas */
.card h4{margin:0 0 .5rem}
.card p{margin:0 0 .75rem; color:#333}
.card ul{margin:0 0 1rem 1.25rem; padding:0}
.card ul li{margin:0 0 .4rem}

/* Botón al fondo y con respiro */
.card .btn{
  margin-top:auto;                /* Clave: fija el botón al fondo */
  align-self:flex-start;          /* o center si lo prefieres centrado */
  display:inline-block;
  padding:.7rem 1rem;
  border-radius:10px;
}

/* Chips y listas */
.chips{display:flex; flex-wrap:wrap; gap:.5rem; padding:0; list-style:none}
.chips li{
  background:#eef4ff; border:1px solid #dce6ff; padding:.35rem .6rem; border-radius:999px;
}
.list-check, .list-dash{padding-left:0; margin:.4rem 0}
.list-check li{margin:.25rem 0; list-style:none}
.list-dash  li{margin:.25rem 0; list-style:none}

/* Banner más legible + tipografía fluida */
.banner{
  background:linear-gradient(135deg, rgba(11,61,145,.95), rgba(0,168,89,.85)), url('../img/banner.jpg') center/cover no-repeat;
  color:#fff; text-align:center; padding: clamp(3rem, 8vw, 6rem) 1.25rem;
}
.banner h1{margin:0 0 .85rem; font-size:clamp(1.9rem, 3vw, 2.6rem)}
.banner p{max-width:900px; margin:0 auto 1.6rem; font-size:clamp(1rem, 1.2vw, 1.1rem)}
.botones .btn{margin:.25rem}

/* Botones */
.btn{
  display:inline-block; padding:.75rem 1rem; border-radius:10px; border:2px solid var(--azul);
  background:#fff; color:var(--azul); text-decoration:none; font-weight:800;
  transition:transform .12s ease, box-shadow .12s ease, filter .12s ease, background .12s ease, color .12s ease;
}
.btn:hover{filter:brightness(.98); transform:translateY(-1px); box-shadow:0 8px 18px rgba(0,0,0,.12)}
.btn:active{transform:translateY(0)}
.btn:focus-visible{outline:3px solid rgba(11,61,145,.35); outline-offset:2px}

.btn-primary{background:var(--verde); border-color:var(--verde); color:#fff}
.btn-primary:hover{background:var(--verde-600)}
.btn-outline{background:transparent; color:#fff; border-color:#fff}
.btn-outline:hover{background:rgba(255,255,255,.15)}

/* Formulario más pro */
.form input, .form textarea{
  width:100%; padding:.9rem; border:1px solid var(--borde); border-radius:10px; margin:.45rem 0;
  background:#fff; transition: box-shadow .12s ease, border-color .12s ease;
}
.form input:focus, .form textarea:focus{
  border-color:#b9c7ff; box-shadow:0 0 0 4px rgba(87,114,255,.15); outline:none;
}
.form button{width:100%}

/* Noticias */
.news{margin:0; padding-left:1.2rem}
.news li{margin:.44rem 0}

/* Cuadros más compactos para redes en contacto */
.contact-social{
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: .9rem;
}
.contact-social .card{
  padding:.8rem;
}
.contact-social .card h4{
  margin:.2rem 0 .4rem;
}
.contact-social .btn{
  padding:.55rem .9rem;
  font-size:.95rem;
}

/* Footer */
footer{
  text-align:center; color:#9aa3ad; padding:1.25rem; margin:1.5rem 0 2.4rem;
  font-size:.98rem;
}

/* Bloque de MARCA (logo grande) */
.brand{display:flex; align-items:center; gap:2rem; justify-content:center; margin-bottom:2rem}
.brand-logo{
  width:640px; height:auto; object-fit:contain; background:transparent;
  border:none; border-radius:0; padding:0; 
  box-shadow:none;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  max-width:100%;
}

.brand-logo:hover {
  transform: scale(1.02);
}

/* Logo pequeño para otras páginas */
.brand-logo.small {
  width: 400px;
  height: auto;
  border-radius: 0;
  padding: 0;
  background: transparent;
  border: none;
  box-shadow: none;
}

.brand-logo.small:hover {
  transform: scale(1.02);
}
.brand-copy{text-align:left}
.brand-copy h2{margin:.25rem 0 .5rem; font-size:clamp(1.4rem, 2vw, 2rem)}
.brand-copy p{margin:0}
@media (max-width:900px){
  .brand{flex-direction:column; text-align:center}
  .brand-copy{text-align:center}
  .brand-logo{width:260px; height:auto}
  .brand-logo.small{width:200px}
  .brand{margin-bottom:1.25rem}
}

@media (max-width: 480px) {
  .brand-logo {
    width: 220px;
    height: auto;
    padding: 0;
  }
  .brand-logo.small{width:160px}
}

/* Electromovilidad con imagen lateral */
.electro{
  display:grid; grid-template-columns: 1.5fr 1fr; gap:2rem; align-items:center;
}
.electro-img img{
  width:100%; border-radius:14px; box-shadow:0 6px 18px rgba(0,0,0,.08); object-fit:cover;
}
@media (max-width:900px){
  .electro{grid-template-columns:1fr}
  .electro-img{margin-top:1rem}
}

/* Carrusel de Proyectos */
.proyectos-head{display:flex; align-items:center; justify-content:space-between; gap:1rem}
.proyectos-head .muted{color:#666; margin:0}

.slider{
  margin-top:1rem;
  display:grid; grid-auto-flow:column; grid-auto-columns:minmax(280px, 360px);
  gap:1rem; overflow-x:auto; padding: .25rem 0 .75rem;
  scroll-snap-type:x mandatory; scrollbar-width:thin;
}
.slider::-webkit-scrollbar{height:8px}
.slider::-webkit-scrollbar-thumb{background:#c9d4e6; border-radius:8px}

.project-card{
  scroll-snap-align:start; background:#fff; border:1px solid var(--borde);
  border-radius:14px; overflow:hidden; box-shadow:0 8px 20px rgba(0,0,0,.05);
  transition: transform .12s ease, box-shadow .12s ease;
}
.project-card:hover{transform:translateY(-3px); box-shadow:0 16px 28px rgba(0,0,0,.09)}
.project-card img{width:100%; height:200px; object-fit:cover; display:block}
.project-info{padding:1rem}
.project-info .tag{font-size:.9rem; color:#555}

/* Controles del carrusel */
.slider-controls{display:flex; gap:.5rem}
.slider-btn{
  background:#fff; color:var(--azul); border:1px solid var(--borde);
  padding:.45rem .75rem; border-radius:10px; cursor:pointer; font-weight:800;
  box-shadow:0 4px 10px rgba(0,0,0,.05);
  transition: background .12s ease, transform .12s ease;
}
.slider-btn:hover{background:#f0f4ff; transform:translateY(-1px)}

/* Alternancia sutil de secciones (opcional: aplica a contenedores de segundo nivel) */
.container:nth-of-type(odd){
  background: #fff;
}
.container:nth-of-type(even){
  background: linear-gradient(180deg, #ffffff, #fbfcff);
}

/* Estados de foco globales */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline:3px solid rgba(11,61,145,.25); outline-offset:2px;
  border-radius:8px;
}

/* Animaciones: respetar usuarios con reduce-motion */
@media (prefers-reduced-motion: reduce){
  *{animation:none!important; transition:none!important; scroll-behavior:auto!important}
}

/* ---------- Nav responsive (hamburguesa) ---------- */
@media (max-width: 980px){
  /* muestra hamburguesa, oculta nav en línea */
  .nav-burger{display:flex}
  nav{
    position: fixed; top:70px; right:16px; left:16px; z-index:19;
    background:#ffffff; color:#222; border:1px solid var(--borde);
    border-radius:14px; padding:.6rem; box-shadow:0 16px 30px rgba(0,0,0,.12);
    transform: translateY(-16px); opacity:0; pointer-events:none;
    transition:opacity .15s ease, transform .15s ease;
  }
  nav ul{flex-direction:column; gap:.25rem}
  nav a{color:var(--azul); padding:.7rem .8rem; border-radius:10px; font-weight:800}
  nav a:hover{background:#f4f7ff}

  /* toggle abierto */
  .nav-check:checked ~ .nav-burger span:nth-child(1){transform:translateY(6px) rotate(45deg)}
  .nav-check:checked ~ .nav-burger span:nth-child(2){opacity:0}
  .nav-check:checked ~ .nav-burger span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
  .nav-check:checked ~ nav{
    opacity:1; transform: translateY(0); pointer-events:auto;
  }
}

/* Pequeñas mejoras de layout en header en pantallas estrechas */
@media (max-width: 480px){
  header{padding:.7rem .9rem}
}

/* --- “Más” (dropdown de overflow) --- */
/* Esta regla se eliminó para permitir el diseño vertical del menú lateral */
.nav-list > li{white-space:nowrap}

.nav-more{position:relative; display:none;}        /* oculto si no hay overflow */
.more-btn{
  background:rgba(255,255,255,.12); color:#fff; border:1px solid rgba(255,255,255,.25);
  padding:.5rem .7rem; border-radius:10px; font-weight:800; cursor:pointer;
}
.more-btn:hover{background:rgba(255,255,255,.18)}
.more-menu{
  position:absolute; right:0; top:calc(100% + 8px);
  min-width:220px; background:#ffffff; border:1px solid var(--borde);
  border-radius:12px; box-shadow:0 18px 36px rgba(0,0,0,.14);
  padding:.4rem; margin:0; list-style:none; display:none; z-index:30;
}
.more-menu li a{
  display:block; padding:.6rem .7rem; border-radius:8px; color:var(--azul);
  font-weight:800; text-decoration:none;
}
.more-menu li a:hover{background:#f4f7ff}

/* estado abierto (lo activa el JS con .open) */
.nav-more.open .more-menu{display:block}

/* accesibilidad teclado */
.more-btn:focus-visible{outline:3px solid rgba(255,255,255,.7); outline-offset:2px}
.more-menu a:focus-visible{outline:3px solid rgba(11,61,145,.25); outline-offset:2px}

/* integra con tu hamburguesa en móvil: en pantallas chicas, no usamos el “Más” */
@media (max-width:980px){
  .nav-more{display:none !important;}
}

/* ====== ADD-ON: NAV OVERFLOW “MÁS” (solo añadir, sin reemplazar) ====== */

/* La lista puede scrollear en casos límite de zoom */
/* Reglas eliminadas para permitir diseño vertical del menú lateral */

/* Botón Más (se muestra si hay overflow; lo gestiona el JS) */
.nav-more{position:relative; display:none}
.more-btn{
  background:rgba(255,255,255,.12); color:#fff; border:1px solid rgba(255,255,255,.25);
  padding:.5rem .7rem; border-radius:10px; font-weight:800; cursor:pointer;
}
.more-btn:hover{background:rgba(255,255,255,.18)}
.more-btn:focus-visible{outline:3px solid rgba(255,255,255,.7); outline-offset:2px}

/* 1) Desktop grande: mega-menú ancho que cae desde el header */
@media (min-width: 1200px){
  .more-menu{
    position:fixed; left:16px; right:16px; top:calc(70px + 6px); /* ajusta 70px si tu header es más alto */
    max-height:60vh; overflow:auto;
    background:#fff; border:1px solid var(--borde); border-radius:14px;
    padding:.8rem; margin:0; list-style:none; display:none; z-index:60;
    box-shadow:0 22px 50px rgba(0,0,0,.18);
    display:grid; grid-template-columns:repeat(auto-fit, minmax(180px, 1fr)); gap:.5rem;
  }
  .more-menu li{list-style:none}
  .more-menu a{
    display:block; padding:.7rem .8rem; border-radius:10px;
    background:#f7f9ff; border:1px solid #e6ecff; color:var(--azul); font-weight:800; text-decoration:none;
  }
  .more-menu a:hover{background:#eef4ff}
  .nav-more.open .more-menu{display:grid}
}

/* 2) Desktop/Tablet medio: dropdown compacto pegado al botón */
@media (min-width: 980px) and (max-width:1199.98px){
  .more-menu{
    position:absolute; right:0; top:calc(100% + 8px);
    min-width:240px; max-height:60vh; overflow:auto;
    background:#fff; border:1px solid var(--borde); border-radius:12px;
    padding:.4rem; margin:0; list-style:none; display:none; z-index:60;
    box-shadow:0 18px 36px rgba(0,0,0,.14);
  }
  .more-menu li{list-style:none}
  .more-menu a{
    display:block; padding:.65rem .75rem; border-radius:8px; color:var(--azul);
    font-weight:800; text-decoration:none;
  }
  .more-menu a:hover{background:#f4f7ff}
  .nav-more.open .more-menu{display:block}
}

/* 3) Móvil: no usamos “Más”, manda la hamburguesa */
@media (max-width: 979.98px){
  .nav-more{display:none !important}
}

/* asegurar stacking del header por encima del mega-menú */
header{ position:sticky; top:0; z-index:50 }

/* opcional: compactar un poco el header en anchos medios */
@media (min-width:980px) and (max-width:1199.98px){
  .nav-list{ gap:.8rem }
  nav a{ padding:.4rem .5rem }
}

/* Responsividad para móviles */
@media (max-width: 768px) {
  .nav-burger {
    width: 45px;
    height: 45px;
    top: 0.8rem;
    left: 0.8rem;
  }
  
  .nav-menu {
    width: 100vw;
    left: -100vw;
  }
  
  .header-title h1 {
    font-size: clamp(1.2rem, 4vw, 1.8rem);
  }
  .header-title h1::before{ width: 46px; height: 46px; }
  
  header {
    padding: 1rem 0.8rem;
    min-height: 70px;
  }
  
  /* Mejorar contenedores en móvil */
  .container {
    margin: 1rem 0.5rem;
    padding: 1rem;
  }
  
  /* Grids responsivos */
  .grid-2 {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  /* Botones más grandes en móvil */
  .btn {
    padding: 1rem 1.5rem;
    font-size: 1.1rem;
  }
}

@media (max-width: 480px) {
  .nav-burger {
    width: 40px;
    height: 40px;
    top: 0.6rem;
    left: 0.6rem;
  }
  
  .nav-header {
    padding: 1.5rem 1rem 0.8rem;
  }
  
  .nav-logo {
    width: 60px;
    height: 60px;
  }
  
  .nav-header h3 {
    font-size: 1rem;
  }
  
  .nav-list a {
    padding: 0.8rem 1rem;
    font-size: 0.9rem;
  }
  
  /* Ajustes para pantallas muy pequeñas */
  .container {
    margin: 0.5rem 0.25rem;
    padding: 0.75rem;
  }
  
  .header-title h1 {
    font-size: 1.2rem;
  }
  .header-title h1::before{ width: 38px; height: 38px; }
  
  .cards {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }
  
  .card {
    padding: 0.75rem;
  }
}

/* Responsividad para tablets */
@media (min-width: 769px) and (max-width: 1024px) {
  .container {
    max-width: 90%;
    margin: 1.5rem auto;
  }
  
  .grid-2 {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Responsividad para pantallas grandes */
@media (min-width: 1200px) {
  .container {
    max-width: 1200px;
  }
  
  .cards {
    grid-template-columns: repeat(3, 1fr);
  }
}