:root {
    --bg: #ffffff;            /* Fondo blanco */
    --surface: #f4f6f9;       /* Gris claro texturizado */
    --primary: #0a3d62;       /* Azul Oscuro Profundo (Títulos y Logo) */
    --secondary: #005792;     /* Azul Eléctrico Corporativo (Acentuados secundarios) */
    --accent: #fbc531;        /* Amarillo/Dorado (Botón de conversión) */
    --accent-light: #fff9e6;  /* Variante crema suave para interfaces móviles */
    --text-main: #1e293b;     /* Gris pizarra muy oscuro para lectura fluida */
    --text-dark: #64748b;     /* Gris sutil para descripciones y estados inactivos */
    --border: #e2e8f0;        /* Líneas divisorias */
    --font-heading: 'Segoe UI', -apple-system, sans-serif;
    --font-body: 'Segoe UI', -apple-system, sans-serif;
    --transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1); /* Transición cinemática suave */
}

/* Reset Estricto de Maquetación */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    background-color: var(--bg);
}

body {
    font-family: var(--font-body);
    background-color: var(--bg);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Contenedores Universales y Grid Global */
.container {
    width: 100%;
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 40px;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 80px;
}

.dot {
    color: var(--accent);
}

/* Etiquetas de Sección */
.section-label {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--primary);
    text-transform: uppercase;
    border-left: 2px solid var(--accent);
    padding-left: 8px;
}

/* ==========================================================================
   CONTROL DE LOGOTIPO 
   ========================================================================== */
.brand-logo-img {
    display: flex;
    align-items: center;
    text-decoration: none;
    height: 100%;
}

.logo-src {
    height: 48px;            
    width: auto;             
    max-width: 200px;        
    object-fit: contain;     
    transition: var(--transition);
}

.logo-src:hover {
    opacity: 0.85;
}

.footer-logo-img {
    display: block;
    margin-bottom: 16px;
}

.logo-src-footer {
    height: 42px;            
    width: auto;
    max-width: 180px;
    object-fit: contain;
}

/* ==========================================================================
   HEADER / BARRA DE NAVEGACIÓN FLOTANTE
   ========================================================================== */
.site-header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 2000;
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 90px;
}

.main-navigation .nav-links {
    display: flex;
    gap: 48px;
}

.nav-item {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-dark);
    text-decoration: none;
    letter-spacing: 1px;
    transition: var(--transition);
    position: relative;
    padding: 8px 0;
}

.nav-item:hover {
    color: var(--primary);
}

.nav-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent);
    transition: var(--transition);
}

.nav-item:hover::after {
    width: 100%;
}

.nav-toggle, .burger-menu {
    display: none;
}

/* ==========================================================================
   HERO / PORTADA 
   ========================================================================== */
.hero-section {
    padding-top: 140px;
    min-height: 95vh;
    display: flex;
    align-items: center;
    position: relative;
    
    background-image: 
        url('images/fondo.png'), 
        linear-gradient(to right, rgba(255, 255, 255, 0.96) 35%, rgba(255, 255, 255, 0.75) 100%), 
        url('images/hero-ilustrativa.jpg');
        
    background-position: 
        center center, 
        center center, 
        center center;
        
    background-repeat: 
        no-repeat, 
        no-repeat, 
        no-repeat;
        
    background-size: 
        cover, 
        cover, 
        cover;
        
    background-blend-mode: normal;
    overflow: hidden;
    filter: brightness(0.96) contrast(1.05);
}

.hero-content-full {
    position: relative;
    max-width: 720px; 
    z-index: 10;
}

.hero-meta {
    font-size: 0.8rem;
    letter-spacing: 4px;
    color: var(--secondary);
    margin-bottom: 24px;
    font-weight: 700;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -2px;
    margin-bottom: 32px;
    color: var(--primary);
}

.gradient-text {
    color: var(--text-dark);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-main);
    margin-bottom: 48px;
    line-height: 1.7;
}

.hero-cta {
    position: relative;
    z-index: 99; 
}

.btn-luxury {
    display: inline-block;
    background-color: var(--accent);
    color: var(--primary);
    padding: 16px 40px;
    border-radius: 40px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 1px;
    transition: var(--transition);
    border: 2px solid var(--accent);
    box-shadow: 0 4px 15px rgba(251, 197, 49, 0.25);
    cursor: pointer;
}

.btn-luxury:hover {
    background-color: transparent;
    color: var(--primary);
    transform: translateY(-3px);
}

/* ==========================================================================
   ESTILOS GENERALES DE SECCIÓN Y CONTENIDO
   ========================================================================== */
section {
    padding: 140px 0;
    border-bottom: 1px solid var(--border);
}

.section-title-large {
    font-size: 2.8rem;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -1px;
    margin-bottom: 32px;
    color: var(--primary);
}

.paragraph-premium {
    font-size: 1.15rem;
    color: var(--text-dark);
    line-height: 1.8;
}

/* ==========================================================================
   SECCIÓN NOSOTROS 
   ========================================================================== */
.grid-nosotros {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr; 
    gap: 64px;
    align-items: flex-start;
}

.about-image-wrapper {
    position: relative;
    width: 100%;
}

.about-portrait {
    width: 100%;
    height: auto;
    max-height: 650px;
    object-fit: cover;
    border-radius: 12px; 
    box-shadow: 0 20px 40px rgba(10, 61, 98, 0.08); 
    display: block;
    position: relative;
    z-index: 2;
}

.portrait-shadow-box {
    position: absolute;
    top: 20px;
    left: -20px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--surface);
    border-radius: 12px;
    z-index: 1;
    pointer-events: none;
}

.desktop-only {
    display: block;
}

.section-label-mobile {
    display: none;
}

.mv-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: 48px;
    border-top: 1px solid var(--border);
    padding-top: 32px;
}

.mv-block h3 {
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--secondary);
    margin-bottom: 12px;
    position: relative;
    display: inline-block;
}

.mv-block h3::after {
    content: '';
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--accent);
    margin-top: 4px;
}

.mv-block p {
    font-size: 0.95rem;
    color: var(--text-dark);
    line-height: 1.7;
}

/* ==========================================================================
   SECCION SERVICIOS 
   ========================================================================== */
.section-servicios {
    padding: 140px 0; 
}

.services-header {
    margin-bottom: 60px;
}

.premium-services-list {
    margin-top: 20px;
}

.service-row {
    display: grid;
    grid-template-columns: 0.4fr 0.4fr 3fr 0.4fr;
    padding: 48px 0;
    border-top: 1px solid var(--border);
    align-items: center;
    cursor: pointer;
    transition: var(--transition);
}

.service-row:last-child {
    border-bottom: 1px solid var(--border);
}

.service-icon-box {
    font-size: 1.6rem;
    color: var(--secondary); 
    display: flex;
    align-items: center;
    justify-content: flex-start;
    transition: var(--transition);
}

.service-num {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-dark);
}

.service-meta h3 {
    font-size: 1.7rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--primary);
    transition: var(--transition);
}

.service-meta p {
    color: var(--text-dark);
    max-width: 800px;
    font-size: 1rem;
    transition: var(--transition);
}

.service-arrow {
    font-size: 1.5rem;
    color: var(--text-dark);
    text-align: right;
    transition: var(--transition);
}

/* Efecto hover */
.service-row:hover {
    padding-left: 20px;
    background-color: var(--surface);
    border-top-color: var(--accent); 
}

.service-row:hover .service-icon-box {
    color: var(--accent); 
    transform: scale(1.15);
}

.service-row:hover .service-num {
    color: var(--secondary);
}

.service-row:hover .service-arrow {
    color: var(--secondary);
    transform: translateX(10px);
}

.service-internal-list {
    margin-top: 16px;
    padding-left: 20px;
    list-style: none;
}

.service-internal-list li {
    font-size: 0.95rem;
    color: var(--text-dark);
    margin-bottom: 8px;
    position: relative;
    transition: var(--transition);
}

.service-internal-list li::before {
    content: "—";
    color: var(--secondary);
    font-weight: bold;
    display: inline-block;
    width: 20px;
    margin-left: -20px;
}

.service-row:hover .service-internal-list li {
    color: var(--text-main);
}

/* ==========================================================================
   SECCION CONTACTO 
   ========================================================================== */
.section-contacto {
    position: relative;
    background-image: linear-gradient(to right, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.88)), url('images/contacto-bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed; 
}

.contact-right-channels {
    display: flex;
    flex-direction: column;
    gap: 28px;
    justify-content: center;
}

.channel-row {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.channel-label {
    font-size: 0.7rem;
    color: var(--text-dark);
    letter-spacing: 2px;
    font-weight: 700;
}

.btn-channel {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.8); 
    backdrop-filter: blur(5px);
    border: 2px solid var(--border);
    padding: 18px 28px;
    border-radius: 40px; 
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.05rem;
    transition: var(--transition);
}

.btn-channel i {
    font-size: 1.2rem;
    color: var(--text-dark);
    transition: var(--transition);
}

.btn-channel:hover {
    background-color: var(--bg);
    border-color: var(--secondary);
    color: var(--secondary);
    padding-left: 36px; 
    box-shadow: 0 10px 25px rgba(0, 87, 146, 0.05);
}

.btn-channel:hover i {
    color: var(--secondary);
    transform: scale(1.15);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
    background-color: var(--surface);
    padding: 100px 0 40px 0;
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(2, 1fr); 
    gap: 60px;
    padding-bottom: 80px;
    border-bottom: 1px solid var(--border);
}

.footer-tagline {
    color: var(--text-dark);
    font-size: 0.95rem;
    margin-top: 12px;
}

.footer-grid h4 {
    font-size: 0.75rem;
    letter-spacing: 2px;
    color: var(--primary);
    margin-bottom: 24px;
    font-weight: 700;
    border-left: 2px solid var(--accent); 
    padding-left: 6px;
}

.footer-grid a {
    display: block;
    color: var(--text-main);
    text-decoration: none;
    font-size: 0.95rem;
    margin-bottom: 12px;
    transition: var(--transition);
    font-weight: 500;
}

.footer-grid a:hover {
    color: var(--secondary);
    transform: translateX(4px);
}

.footer-bottom {
    padding-top: 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-dark);
}

/* ==========================================================================
   MEDIA QUERIES (ADAPTABILIDAD MÓVIL ESTRICTA)
   ========================================================================== */
@media (max-width: 1024px) {
    .hero-title { font-size: 3.2rem; }
    .grid-nosotros { grid-template-columns: 1fr; gap: 48px; }
    .services-header { grid-template-columns: 1fr; gap: 16px; }
    .service-row { grid-template-columns: 0.2fr 0.2fr 2.3fr 0.3fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 768px) {
    .container, .header-container { padding: 0 24px; }
    
    .logo-src {
        height: 38px;        
        max-width: 150px;
    }
    
    .header-container {
        height: 75px;        
    }

    .hero-section {
        background-image: linear-gradient(to bottom, rgba(255, 255, 255, 0.98) 50%, rgba(255, 255, 255, 0.9) 100%), url('images/fondo.png'), url('images/hero-ilustrativa.jpg');
        background-position: center center, center 90%, center center;
        background-size: cover, contain, cover;
        padding-top: 160px;
        filter: none; 
    }
    
    .hero-title { font-size: 2.4rem; }

    .grid-nosotros { grid-template-columns: 1fr; gap: 40px; }
    .desktop-only { display: none; }
    .section-label-mobile {
        display: block;
        font-size: 0.75rem;
        font-weight: 700;
        letter-spacing: 3px;
        color: var(--primary);
        text-transform: uppercase;
        border-left: 2px solid var(--accent);
        padding-left: 8px;
        margin-bottom: 24px;
    }
    .about-portrait { max-height: 500px; }
    .portrait-shadow-box { display: none; }
    .mv-container { grid-template-columns: 1fr; gap: 32px; }

    /* Adaptación de servicios continuos en móvil */
    .services-header p { margin-top: 8px; }
    .service-row {
        grid-template-columns: 1fr !important;
        gap: 12px;
        padding: 32px 0;
    }
    .service-icon-box { font-size: 1.8rem; margin-bottom: 4px; }
    .service-arrow { text-align: left; margin-top: 8px; }

    .contact-right-channels { margin-top: 16px; gap: 24px; }
    .btn-channel { padding: 14px 20px; font-size: 0.95rem; }

    /* Menú Hamburguesa Móvil */
    .burger-menu {
        display: flex;
        flex-direction: column;
        gap: 6px;
        cursor: pointer;
        z-index: 3000;
    }
    
    .burger-menu .line {
        display: block;
        width: 28px;
        height: 2px;
        background-color: var(--primary);
        transition: var(--transition);
    }

    .main-navigation {
        position: fixed;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100vh;
        background-color: var(--accent-light); 
        display: flex;
        align-items: center;
        justify-content: center;
        transition: var(--transition);
    }

    .main-navigation .nav-links {
        flex-direction: column;
        align-items: center;
        gap: 40px;
    }

    .nav-item { font-size: 1.8rem; color: var(--primary); }

    .nav-toggle:checked ~ .main-navigation { left: 0; }
    .nav-toggle:checked ~ .burger-menu .line:nth-child(1) { transform: translateY(4px) rotate(45deg); }
    .nav-toggle:checked ~ .burger-menu .line:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }

    .section-title-large { font-size: 2rem; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
}