/* ==========================================================================
   Variables de Paleta de Colores Corporativa (Fondo Claro)
   ========================================================================== */
:root {
    --bg-main: #FAFBFC;         /* Fondo claro predominante */
    --bg-alt: #F1F4F8;          /* Gris azulado muy suave para secciones alternas */
    --bg-card: #FFFFFF;         /* Blanco puro para las tarjetas y contenedores */
    --text-main: #1E2530;       /* Negro azulado para textos legibles */
    --text-muted: #5A6A80;      /* Gris intermedio para descripciones secundarias */
    --text-white: #FFFFFF;
    --accent-blue: #0A66C2;     /* Azul profesional de la marca */
    --accent-cyan: #00A3FF;     /* Azul eléctrico / Cian de realce */
    --border-light: #E2E8F0;    /* Líneas de separación tenues */
    --transition-smooth: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
}

body {
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    color: #0F141C;
    font-weight: 700;
}

/* ==========================================================================
   Encabezado Fijo (Header) - Ajustado para Logo más Grande
   ========================================================================== */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(250, 251, 252, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition-smooth);
}

.header-scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 20px; /* Espaciado generoso para el logo grande */
    transition: var(--transition-smooth);
}

.header-scrolled .header-container {
    padding: 10px 20px; /* Reducción elegante en scroll */
}

/* Tamaño de logotipo ampliado sustancialmente */
.site-logo {
    height: 85px; /* Modificado para un tamaño mucho más grande y legible */
    width: auto;
    object-fit: contain;
    transition: var(--transition-smooth);
}

.header-scrolled .site-logo {
    height: 60px; /* Tamaño del logo cómodo cuando el usuario hace scroll hacia abajo */
}

.nav-menu ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition-smooth);
    position: relative;
    padding: 5px 0;
}

.nav-link:hover, .nav-link.active {
    color: var(--accent-blue);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
    transition: var(--transition-smooth);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

/* Menú Móvil */
.menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
}

.menu-toggle .bar {
    width: 25px;
    height: 3px;
    background-color: var(--text-main);
    margin: 4px 0;
    transition: var(--transition-smooth);
}

/* ==========================================================================
   Sección Hero (Inicio)
   ========================================================================== */
.hero-section {
    min-height: 90vh;
    padding-top: 140px; /* Margen superior adaptado al nuevo tamaño de cabecera */
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 20px;
    padding-right: 20px;
    gap: 50px;
}

.hero-content {
    flex: 1.2;
    max-width: 650px;
}

.hero-content h1 {
    font-size: 3.2rem;
    line-height: 1.15;
    margin-bottom: 20px;
}

.text-gradient {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content p {
    font-size: 1.15rem;
    line-height: 1.65;
    color: var(--text-muted);
    margin-bottom: 35px;
}

.hero-illustration {
    flex: 0.8;
    display: flex;
    justify-content: center;
    align-items: center;
}

.responsive-illustration {
    width: 100%;
    max-width: 450px;
    height: auto;
    object-fit: contain;
}

/* Botones con Estilo Limpio */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 6px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-smooth);
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue), #0855a1);
    color: var(--text-white);
    box-shadow: 0 4px 14px rgba(10, 102, 194, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(10, 102, 194, 0.4);
}

.btn-secondary {
    background: var(--text-main);
    color: var(--bg-main);
    border: none;
    width: 100%;
}

.btn-secondary:hover {
    background-color: var(--accent-blue);
    transform: translateY(-1px);
}

/* ==========================================================================
   Sección Servicios (Fondo Alterno)
   ========================================================================== */
.services-section {
    background-color: var(--bg-alt);
    padding: 90px 20px;
}

.section-title-container {
    text-align: center;
    margin-bottom: 55px;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.section-title-container h2 {
    font-size: 2.4rem;
    margin-bottom: 12px;
}

.title-line {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
    margin: 0 auto;
    border-radius: 2px;
}

.services-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: var(--bg-card);
    padding: 40px 30px;
    border-radius: 12px;
    border: 1px solid rgba(0, 0, 0, 0.03);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
    transition: var(--transition-smooth);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(10, 102, 194, 0.08);
    border-color: rgba(0, 163, 255, 0.15);
}

.card-image-container {
    width: 100%;
    margin-bottom: 20px;
}

.service-illustration {
    width: 70px;
    height: 70px;
    object-fit: contain;
}

.card-icon {
    font-size: 2.3rem;
    color: var(--accent-blue);
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.service-card p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-muted);
}

/* ==========================================================================
   Sección Nosotros (Fondo Claro Base)
   ========================================================================== */
.about-section {
    padding: 100px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.about-wrapper {
    display: flex;
    gap: 60px;
    flex-wrap: wrap;
}

.about-text, .about-team {
    flex: 1;
    min-width: 320px;
}

.about-text h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
}

.about-description {
    font-size: 1.1rem;
    line-height: 1.65;
    color: var(--text-muted);
    margin-bottom: 30px;
}

.mission-vision {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.mv-item h4 {
    font-size: 1.15rem;
    color: var(--accent-blue);
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.mv-item p {
    color: var(--text-muted);
    line-height: 1.6;
}

.about-team {
    background-color: var(--bg-alt);
    padding: 45px;
    border-radius: 14px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.about-team h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.about-team p {
    line-height: 1.65;
    color: var(--text-muted);
    margin-bottom: 25px;
}

.tech-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background-color: rgba(10, 102, 194, 0.08);
    padding: 10px 22px;
    border-radius: 50px;
    color: var(--accent-blue);
    font-weight: 600;
    font-size: 0.88rem;
    align-self: flex-start;
}

/* ==========================================================================
   Sección Contacto (Fondo Alterno)
   ========================================================================== */
.contact-section {
    background-color: var(--bg-alt);
    padding: 90px 20px;
}

.contact-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    gap: 60px;
    flex-wrap: wrap;
}

.contact-info, .contact-form-container {
    flex: 1;
    min-width: 320px;
}

.contact-info h2 {
    font-size: 2.4rem;
    margin-bottom: 15px;
}

.contact-intro {
    color: var(--text-muted);
    margin-bottom: 30px;
}

.expert-card {
    display: flex;
    align-items: center;
    gap: 20px;
    background-color: var(--bg-card);
    padding: 22px;
    border-radius: 10px;
    margin-bottom: 35px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.02);
    border-left: 4px solid var(--accent-blue);
}

.expert-avatar {
    font-size: 2.4rem;
    color: var(--accent-blue);
}

.expert-details h4 {
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.expert-details .badge {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

.contact-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 22px;
}

.contact-list li {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.contact-list i {
    font-size: 1.25rem;
    color: var(--accent-blue);
    margin-top: 4px;
}

.contact-list .icon-whatsapp {
    color: #25D366;
}

.contact-list strong {
    color: var(--text-main);
}

.contact-list span, .contact-list a {
    display: block;
    color: var(--text-muted);
    text-decoration: none;
    margin-top: 2px;
}

.contact-list a:hover {
    color: var(--accent-blue);
}

/* Contenedor del Formulario */
.contact-form-container {
    background-color: var(--bg-card);
    padding: 45px;
    border-radius: 14px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
}

.contact-form-container h3 {
    margin-bottom: 25px;
    font-size: 1.4rem;
}

.form-group {
    margin-bottom: 22px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-main);
    font-weight: 600;
    font-size: 0.9rem;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 14px;
    background-color: var(--bg-main);
    border: 1px solid var(--border-light);
    border-radius: 6px;
    color: var(--text-main);
    font-family: inherit;
    transition: var(--transition-smooth);
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    background-color: var(--bg-card);
    box-shadow: 0 0 0 3px rgba(10, 102, 194, 0.1);
}

/* Footer */
.main-footer {
    background-color: var(--bg-main);
    text-align: center;
    padding: 35px 20px;
    border-top: 1px solid var(--border-light);
    font-size: 0.92rem;
    color: var(--text-muted);
}

/* ==========================================================================
   Media Queries para Dispositivos Móviles
   ========================================================================== */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .menu-toggle.active .bar:nth-child(2) { opacity: 0; }
    .menu-toggle.active .bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .menu-toggle.active .bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: var(--bg-card);
        transition: var(--transition-smooth);
        box-shadow: 0 10px 20px rgba(0,0,0,0.05);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu ul {
        flex-direction: column;
        align-items: center;
        padding-top: 40px;
        gap: 35px;
    }

    .hero-section {
        flex-direction: column;
        text-align: center;
        padding-top: 150px;
        gap: 30px;
    }

    .hero-content h1 {
        font-size: 2.3rem;
    }

    .responsive-illustration {
        max-width: 320px;
    }
    
    .site-logo {
        height: 65px; /* Tamaño móvil controlado */
    }
}