/* ==========================================================================
   CONFIGURACIÓN BASE Y VARIABLES
   ========================================================================== */
:root {
    --primary-blue: #0468B2;
    --secondary-blue: #5DC5ED;
    --dark-blue: #243881;
    --light-bg: #F5F7FA;
    --white: #ffffff;
    --text-dark: #0A2540;
    --text-gray: #4A5568;
    --success-green: #28a745;
    --card-bg: #ffffff;
}

[data-theme="dark"] {
    --primary-blue: #0ea5e9;
    --dark-blue: #38bdf8;
    --secondary-blue: #7dd3fc;
    --light-bg: #0f172a;
    --white: #1e293b;
    --text-dark: #cbd5e1;
    --text-gray: #94a3b8;
    --card-bg: #1e293b;
}

[data-theme="dark"] header {
    background-color: rgba(30, 41, 59, 0.85);
}

[data-theme="dark"] .stat-box h2, [data-theme="dark"] .stat-box p {
    color: #ffffff;
}

[data-theme="dark"] .logo img {
    filter: brightness(0) invert(1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Open Sans', sans-serif;
    color: var(--text-dark);
    line-height: 1.7;
    background-color: var(--light-bg);
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
}

a {
    text-decoration: none;
    color: inherit;
}

/* ==========================================================================
   CONTENEDOR GENERAL
   ========================================================================== */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.padding-section {
    padding: 2rem 0;
}

.dos-columnas {
    display: grid;
    grid-template-columns: 1fr;
    gap: 25px;
}

.center-text {
    text-align: center;
}

.mt-4 {
    margin-top: 2.5rem;
}

/* ==========================================================================
   BARRA DE NAVEGACIÓN (HEADER)
   ========================================================================== */
header {
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    padding: 10px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo a {
    display: block;
}

.logo a img {
    height: 85px;
    width: auto;
    display: block;
    transition: transform 0.3s;
}

.logo a img:hover {
    transform: scale(1.03);
}

.logo h2 span {
    color: var(--secondary-blue);
}

nav ul {
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

nav ul li a {
    font-weight: 500;
    color: var(--text-dark);
    padding: 5px 10px;
    transition: color 0.3s;
}

nav ul li a:hover,
nav ul li a.activo {
    color: var(--secondary-blue);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.8rem;
    color: var(--dark-blue);
    cursor: pointer;
}

.btn-nav {
    background-color: var(--secondary-blue);
    color: var(--white) !important;
    padding: 8px 20px !important;
    border-radius: 20px;
    font-weight: 600;
    transition: background 0.3s !important;
}

.btn-nav:hover {
    background-color: var(--primary-blue);
}

/* ==========================================================================
   BANNER PRINCIPAL (HERO)
   ========================================================================== */
.hero {
    background: linear-gradient(rgba(10, 25, 47, 0.88), rgba(10, 25, 47, 0.88)),
                url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: #ffffff;
    text-align: center;
    padding: 120px 20px 160px 20px;
}

.hero h1 {
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    font-weight: 700;
    max-width: 850px;
    margin: 0 auto 20px auto;
    letter-spacing: -0.5px;
}

.hero p {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    max-width: 750px;
    margin: 0 auto 35px auto;
    opacity: 0.85;
}

.btn-hero {
    display: inline-block;
    background-color: var(--secondary-blue);
    color: #ffffff;
    padding: 14px 35px;
    border-radius: 5px;
    font-weight: bold;
    transition: background 0.3s, transform 0.2s;
}

.btn-hero:hover {
    background-color: var(--primary-blue);
    transform: translateY(-2px);
}

/* ==========================================================================
   TARJETAS FLOTANTES DE INICIO
   ========================================================================== */
.hero-cards-container {
    margin-top: -85px;
    position: relative;
    z-index: 10;
    padding-bottom: 60px;
}

.grid-home-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 25px;
}

.home-card {
    background: var(--card-bg);
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 15px 35px rgba(0,0,0,0.08);
    transition: transform 0.3s, box-shadow 0.3s;
    border-bottom: 4px solid transparent;
}

.home-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.12);
    border-bottom: 4px solid var(--secondary-blue);
}

.home-card i {
    color: var(--secondary-blue);
    margin-bottom: 20px;
}

.home-card h3 {
    color: var(--dark-blue);
    margin-bottom: 12px;
    font-size: 1.4rem;
    font-weight: 600;
}

.home-card p {
    color: var(--text-gray);
    font-size: 0.98rem;
}

/* ==========================================================================
   PÁGINAS INTERNAS (HEADER COMÚN)
   ========================================================================== */
.page-header {
    background: linear-gradient(135deg, var(--dark-blue) 0%, var(--primary-blue) 100%);
    color: #ffffff;
    text-align: center;
    padding: 60px 20px;
}

.page-header h1 {
    margin-bottom: 10px;
}

/* ==========================================================================
   COMPONENTES DE "SOBRE NOSOTROS"
   ========================================================================== */
.box {
    background-color: var(--light-bg);
    padding: 30px;
    border-radius: 8px;
    border-left: 5px solid var(--secondary-blue);
}

.highlight-box {
    background: var(--dark-blue);
    color: #ffffff;
    padding: 30px 20px;
    border-radius: 10px;
    margin-top: 30px;
    border-left: none;
}

.grid-valores {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.valor {
    background-color: var(--light-bg);
    padding: 15px;
    text-align: center;
    border-radius: 6px;
}

.valor i {
    color: var(--secondary-blue);
    margin-right: 8px;
}

/* ==========================================================================
   COMPONENTES DE "PROYECTOS"
   ========================================================================== */
.grid-proyectos {
    display: grid;
    grid-template-columns: 1fr;
    gap: 25px;
}

.proyecto-item {
    background: var(--card-bg);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.img-proyecto {
    height: 200px;
    background-size: cover;
    background-position: center;
    position: relative;
}

.badge {
    position: absolute;
    top: 15px;
    left: 15px;
    padding: 5px 12px;
    background: var(--text-gray);
    color: var(--white);
    font-size: 0.8rem;
    font-weight: bold;
    border-radius: 20px;
}

.badge-activo { background-color: var(--success-green); }
.badge-ejecutado { background-color: var(--primary-blue); }

.info-proyecto {
    padding: 20px;
}

.info-proyecto h4 {
    margin-bottom: 10px;
    color: var(--dark-blue);
}

/* ==========================================================================
   COMPONENTES DE "TRANSPARENCIA"
   ========================================================================== */
.grid-documentos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.doc-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 25px;
    border-radius: 8px;
    text-align: center;
    color: #ffffff;
    transition: transform 0.3s, background 0.3s;
}

.doc-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.1);
}

/* ==========================================================================
   COMPONENTES DE "CONTACTO"
   ========================================================================== */
.formulario-box {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

.bg-light {
    background-color: var(--light-bg);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-family: inherit;
}

.w-100 { width: 100%; }

.btn-primary,
.btn-secondary {
    padding: 12px 20px;
    border: none;
    border-radius: 4px;
    color: var(--white);
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s;
}

.btn-primary { background-color: var(--primary-blue); }
.btn-primary:hover { background-color: var(--dark-blue); }
.btn-secondary { background-color: var(--secondary-blue); }
.btn-secondary:hover { background-color: var(--primary-blue); }

/* ==========================================================================
   PIE DE PÁGINA (FOOTER)
   ========================================================================== */
footer {
    background-color: var(--dark-blue);
    color: #cbd5e1;
    text-align: center;
    padding: 25px 0;
    font-size: 0.9rem;
    border-top: 1px solid rgba(255,255,255,0.05);
    margin-top: 4rem;
}

/* ==========================================================================
   DISEÑO RESPONSIVO
   ========================================================================== */

/* Móviles */
@media(max-width: 767px) {
    header {
        position: sticky;
        top: 0;
        z-index: 1000;
        padding-bottom: 15px;
    }
    .mobile-menu-toggle {
        display: block;
        position: absolute;
        top: 25px;
        right: 20px;
    }
    nav {
        width: 100%;
        margin-top: 15px;
    }
    nav ul#nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        gap: 8px;
        background: var(--white);
        border-radius: 8px;
        padding: 15px;
        box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    }
    nav ul#nav-links.nav-active {
        display: flex;
    }
    nav ul li {
        width: 100%;
    }
    nav ul li a {
        display: block;
        padding: 10px;
        background-color: var(--light-bg);
        border-radius: 5px;
    }
    nav ul li a.btn-nav {
        margin-top: 5px;
    }

    .dos-columnas {
        grid-template-columns: 1fr;
    }
}

/* Tablets */
@media(min-width: 768px) {
    .padding-section { padding: 4rem 0; }
    .dos-columnas { grid-template-columns: 1fr 1fr; gap: 40px; }
    .grid-proyectos { grid-template-columns: repeat(2, 1fr); }
    .highlight-box { padding: 40px; }
    .grid-home-cards { grid-template-columns: repeat(3, 1fr); }
}

/* Escritorio */
@media(min-width: 1024px) {
    header { flex-wrap: nowrap; padding: 15px 5%; }
    .logo { flex: 1; display: flex; justify-content: flex-start; }
    nav { flex: 2; display: flex; justify-content: center; }
    #google_translate_element { flex: 1; display: flex; justify-content: flex-end; }
    
    nav ul { flex-direction: row; gap: 30px; }
    nav ul li a { background: none; }
    .grid-proyectos { grid-template-columns: repeat(3, 1fr); }
}

/* ==========================================================================
   ESTILOS FUNADES (Nuevos componentes)
   ========================================================================== */
.card-box {
    background-color: var(--card-bg);
    padding: 40px;
    border-radius: 8px;
    border-left: 5px solid var(--secondary-blue);
    box-shadow: 0 4px 15px rgba(0,0,0,0.04);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card-box:hover {
    transform: translateY(-5px) scale(1.01);
    box-shadow: 0 12px 25px rgba(0,0,0,0.1);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.service-card {
    background-color: var(--light-bg);
    padding: 30px;
    border-radius: 6px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}

.service-card .icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--secondary-blue);
}

/* ==========================================================================
   ESTILOS PARA GOOGLE TRANSLATE (Mejora estética)
   ========================================================================== */
#google_translate_element select {
    background-color: var(--secondary-blue);
    color: var(--white);
    border: none;
    border-radius: 20px;
    padding: 8px 15px;
    font-family: 'Open Sans', sans-serif;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    outline: none;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    transition: background 0.3s;
}

#google_translate_element select:hover {
    background-color: var(--primary-blue);
}

/* Ocultar el branding feo de Google y el banner superior */
.goog-logo-link, .goog-te-gadget span {
    display: none !important;
}
.goog-te-gadget {
    color: transparent !important;
    font-size: 0;
}
body { top: 0 !important; }
.skiptranslate iframe { display: none !important; }

/* ==========================================================================
   ANIMACIONES DE SCROLL (Fase 2)
   ========================================================================== */
.fade-in-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   BOTONES FLOTANTES (Fase 4)
   ========================================================================== */
/* --- Botones Flotantes (Línea Vertical) --- */
.floating-tools {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 1000;
}
.tool-btn {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    border: none;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    color: white;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    cursor: pointer;
    transition: transform 0.3s, background 0.3s;
    text-decoration: none;
}
.tool-btn:hover {
    transform: scale(1.1);
    color: white;
}
.btn-whatsapp { background-color: #25d366; }
.btn-darkmode { background-color: var(--dark-blue); }
.btn-a11y { background-color: var(--primary-blue); }

/* ==========================================================================
   FASE 5: MICRO-BRANDING Y PREMIUM UI
   ========================================================================== */
::selection {
    background-color: var(--secondary-blue);
    color: var(--white);
}

::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--light-bg);
}
::-webkit-scrollbar-thumb {
    background: var(--dark-blue);
    border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary-blue);
}

/* --- Preloader --- */
#preloader {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: var(--white);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.5s ease;
}
.preloader-img {
    height: 80px;
    animation: pulse 1.5s infinite;
}
@keyframes pulse {
    0% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.05); opacity: 1; }
    100% { transform: scale(1); opacity: 0.8; }
}

/* --- Super Footer --- */
.super-footer {
    background-color: #0A192F; /* Azul corporativo muy oscuro */
    color: #e2e8f0;
    padding: 60px 0 20px 0;
    margin-top: 5rem;
    font-size: 0.95rem;
}
.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}
.footer-col h4 {
    color: #ffffff;
    font-size: 1.2rem;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--secondary-blue);
    display: inline-block;
    padding-bottom: 5px;
}
.footer-col p {
    margin-bottom: 15px;
    line-height: 1.8;
}
.footer-col ul {
    list-style: none;
}
.footer-col ul li {
    margin-bottom: 12px;
}
.footer-col ul li a {
    color: #cbd5e1;
    transition: color 0.3s, padding-left 0.3s;
}
.footer-col ul li a:hover {
    color: var(--secondary-blue);
    padding-left: 5px;
}
.footer-socials {
    display: flex;
    gap: 15px;
}
.footer-socials a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    color: var(--white);
    transition: background 0.3s, transform 0.3s;
}
.footer-socials a:hover {
    background: var(--secondary-blue);
    transform: translateY(-3px);
}
.footer-bottom {
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    font-size: 0.85rem;
}

/* --- Estadísticas (Trust Signals) --- */
.stats-section {
    background: linear-gradient(135deg, var(--dark-blue) 0%, var(--primary-blue) 100%);
    color: var(--white);
    padding: 60px 0;
    text-align: center;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}
.stat-box h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--secondary-blue);
}
.stat-box p {
    font-size: 1.1rem;
    font-weight: 600;
}

/* --- Carrusel de Aliados --- */
.allies-section {
    padding: 60px 0;
    background-color: var(--white);
    text-align: center;
    overflow: hidden;
}
.allies-carousel {
    display: flex;
    align-items: center;
    justify-content: space-around;
    width: 200%;
    animation: scroll-allies 30s linear infinite;
    gap: 50px;
    margin-top: 30px;
}
.allies-carousel i {
    font-size: 3.5rem;
    color: #cbd5e1;
    transition: color 0.3s, transform 0.3s;
}
.allies-carousel i:hover {
    color: var(--secondary-blue);
    transform: scale(1.1);
}
@keyframes scroll-allies {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}