@charset "utf-8";
/* CSS Document */
/* --- VARIABLES Y RESET --- */ :root {
    --primario: #1a1a1a;
    --acento: #b89650; /* Dorado arquitectónico */
    --acento-hover: #967a3f;
    --blanco: #ffffff;
    --negro: #000000;
    --gris-claro: #f4f4f4;
    --texto: #333333;
    --transicion: all 0.3s ease;
    --shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    --gold: #c5a059;
    --dark: #121212;
    --gray: #f4f4f4;
    --text: #333;
    --transition: 0.4s ease-in-out;
}
/* Contenedor de Módulo */
.module-section {
    padding: 100px 10%;
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text);
}
.module-title {
    font-size: 2.5rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 20px;
    color: var(--dark);
}
.highlight {
    color: var(--gold);
    font-weight: bolder;
}
/* Grid de Servicios (Inicio) */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 40px;
}
.service-item {
    padding: 30px;
    background: var(--gray);
    border-left: 4px solid var(--gold);
    transition: var(--transition);
}
.service-item:hover {
    background: #e8e8e8;
    transform: translateY(-5px);
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--texto);
    background-color: var(--blanco);
    overflow-x: hidden;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
img {
    max-width: 100%;
    display: block;
}
/* --- UTILIDADES --- */
.accent, .color-acento {
    color: var(--acento);
}
.btn {
    display: inline-block;
    padding: 10px 25px;
    background-color: var(--acento);
    color: var(--blanco);
    text-decoration: none;
    transition: var(--transicion);
    border-radius: 2px;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
}
.btn:hover {
    background-color: var(--primario);
}
.faq-grid {
    max-width: 800px;
    margin: 0 auto;
}
.faq-item {
    background: #fff;
    border-bottom: 1px solid #e0e0e0;
    padding: 15px 0;
    transition: var(--transition);
}
.faq-item summary {
    list-style: none;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    padding: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--dark);
}
.faq-item summary::after {
    content: '+';
    color: var(--gold);
    font-size: 1.5rem;
}
.faq-item[open] summary::after {
    content: '-';
}
.faq-content {
    padding: 10px 20px 20px;
    color: #555;
    font-size: 1rem;
    line-height: 1.6;
}
.faq-cta {
    text-align: center;
    margin-top: 60px;
    padding: 40px;
    background: var(--gray);
}
.btn-gold {
    display: inline-block;
    background: var(--gold);
    color: #fff;
    padding: 15px 30px;
    text-decoration: none;
    font-weight: bold;
    letter-spacing: 1px;
    margin-top: 20px;
    transition: var(--transition);
}
.btn-gold:hover {
    background: var(--dark);
}
/* --- HEADER Y NAVEGACIÓN --- */
.header {
    background: var(--negro);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}
.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
.logo img {
    height: 50px;
}
.menu {
    display: flex;
    list-style: none;
    gap: 30px;
}
.menu a, .has-submenu span {
    text-decoration: none;
    color: var(--gris-claro);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transicion);
}
.menu a:hover, .has-submenu:hover > span {
    color: var(--acento);
}
/* Submenú */
.has-submenu {
    position: relative;
}
.submenu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--blanco);
    min-width: 200px;
    box-shadow: var(--shadow);
    display: none;
    list-style: none;
    padding: 10px 0;
}
.submenu li a {
    padding: 10px 20px;
    display: block;
    font-size: 0.9rem;
    color: var(--negro);
}
.has-submenu:hover .submenu {
    display: block;
}
/* Menú Móvil */
.menu-toggle {
    display: none;
    font-size: 1.5rem;
    background: none;
    border: none;
    cursor: pointer;
}
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
        color: var(--blanco); /* Para que se vea sobre el fondo negro */
        font-size: 2rem;
    }
    .nav {
        display: none; /* Oculto por defecto */
        position: absolute;
        top: 100%; /* Justo debajo del header */
        left: 0;
        width: 100%;
        background: var(--primario); /* Usamos el color oscuro del header */
        padding: 20px;
        box-shadow: var(--shadow);
        z-index: 999;
    }
    /* Esta clase la pondremos con JavaScript */
    .nav.active {
        display: block;
        border-top: 1px solid var(--acento);
    }
    .menu {
        flex-direction: column;
        gap: 15px;
        align-items: center;
    }
    .submenu {
        position: static;
        box-shadow: none;
        background: transparent;
        text-align: center;
        padding-left: 0;
    }
    .submenu li a {
        color: var(--gris-claro);
    }
}
/* --- SECCIÓN INICIO (HERO) --- */
.hero {
    height: 80vh;
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.2)), url('../_imagenes/hero.jpg') center/cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--blanco);
}
.hero h1 {
    font-size: 2.7rem;
    line-height: 1.1;
    margin-bottom: 20px;
    text-transform: uppercase;
}
.hero-subtitle {
    font-size: 1.2rem;
    font-weight: 300;
}
.intro {
    padding: 80px 0;
    text-align: center;
    background: var(--gris-claro);
}
.intro h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
}
.intro p {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
}
/* --- GALERÍAS --- */
.seccion-principal {
    padding: 60px 0 20px;
    text-align: center;
}
.titulo-principal {
    font-size: 2.5rem;
    text-transform: uppercase;
    margin-bottom: 10px;
}
.galeria {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 15px;
    padding: 20px;
    max-width: 1300px;
    margin: 0 auto;
}
.contenedor-imagen {
    aspect-ratio: 4/3;
    overflow: hidden;
    cursor: pointer;
    background: var(--gris-claro);
}
.contenedor-imagen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.contenedor-imagen:hover img {
    transform: scale(1.08);
}
.bloque-texto {
    background: var(--primario);
    color: var(--blanco);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    text-align: center;
}
/* --- PROYECTOS DESTACADOS (CARDS) --- */
.proyectos {
    padding: 20px 0;
}
.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    text-transform: uppercase;
}
.grid-proyectos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}
.card {
    background: var(--blanco);
    box-shadow: var(--shadow);
    transition: var(--transicion);
    border-bottom: 4px solid transparent;
}
.card:hover {
    transform: translateY(-10px);
    border-bottom-color: var(--acento);
}
.card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}
.card-content {
    padding: 25px;
}
.card-content h3 {
    margin-bottom: 10px;
    font-size: 1.4rem;
}
.card-content p {
    color: #777;
    margin-bottom: 20px;
    font-size: 0.9rem;
}
/* --- LIGHTBOX --- */
#lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    padding: 40px;
}
#lightbox.activo {
    display: flex;
}
#imagen-lightbox {
    max-width: 90%;
    max-height: 85vh;
    object-fit: contain;
    border: 4px solid var(--blanco);
}
.boton-cerrar {
    position: absolute;
    top: 20px;
    right: 40px;
    color: var(--blanco);
    font-size: 3rem;
    cursor: pointer;
}
/* --- FOOTER --- */
footer {
    background: var(--primario);
    color: rgba(255, 255, 255, 0.6);
    padding: 40px 0;
    margin-top: 50px;
}