/* --- RAÍZ Y VARIABLES GLOBALES --- */
:root {
    --color-primario: #0a4d9e; /* Un azul corporativo (confianza) */
    --color-secundario: #f0f0f0; /* Un gris claro para fondos */
    --color-dark: #222; /* Fondo oscuro */
    --color-light: #ffffff;
    --color-texto: #333;
    --font-principal: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* --- RESETEO BÁSICO Y MOBILE-FIRST --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth; /* Para el scroll suave de la One-Page */
}

body {
    font-family: var(--font-principal);
    color: var(--color-texto);
    line-height: 1.6;
    background: var(--color-light);
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
}

/* --- NAVEGACIÓN (Mobile First) --- */
.navbar {
    background: var(--color-light);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--color-primario);
    text-decoration: none;
}
.logo span {
    font-weight: normal;
    font-size: 0.9rem;
    color: #777;
}

.nav-links {
    list-style: none;
    position: absolute;
    top: 60px; /* altura de la navbar */
    left: 0;
    background: var(--color-light);
    width: 100%;
    flex-direction: column;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    
    /* Oculto por defecto */
    display: none;
}

/* Estado activo (que manejará JS) */
.nav-links.active {
    display: flex;
}

.nav-links li {
    padding: 1.2rem 0;
}

.nav-links a {
    color: var(--color-primario);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.1rem;
}

.mobile-menu-toggle {
    display: block; /* Visible en móvil */
    background: none;
    border: none;
    font-size: 1.8rem;
    color: var(--color-primario);
    cursor: pointer;
}


/* --- SECCIÓN HERO --- */
.hero {
    background: var(--color-primario);
    color: var(--color-light);
    text-align: center;
    padding: 8rem 0 4rem; /* Más padding arriba por la navbar fija */
    margin-top: 60px; /* Separación de la navbar */
}

.hero h1 {
    font-size: 2.2rem;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.hero .subtitulo {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-button {
    background: var(--color-light);
    color: var(--color-primario);
    padding: 0.8rem 1.5rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
}
.cta-button:hover {
    background: var(--color-secundario);
    transform: translateY(-2px);
}

/* --- SECCIONES GENERALES --- */
section {
    padding: 4rem 0;
    text-align: center;
}
section h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}
.section-light { background: var(--color-light); }
.section-dark {
    background: var(--color-dark);
    color: var(--color-light);
}

/* --- SECCIÓN FILOSOFÍA (GRID) --- */
.grid-container {
    display: grid;
    grid-template-columns: 1fr; /* Una columna en móvil */
    gap: 2rem;
    margin-top: 2.5rem;
}

.grid-item {
    background: var(--color-secundario);
    padding: 2rem;
    border-radius: 8px;
}
.grid-item i {
    font-size: 2.5rem;
    color: var(--color-primario);
    margin-bottom: 1rem;
}
.grid-item h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

/* --- SECCIÓN SERVICIO (TaaS) --- */
.section-dark p {
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 1.5rem;
}

.cta-button-outline {
    background: transparent;
    color: var(--color-light);
    padding: 0.8rem 1.5rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    border: 2px solid var(--color-light);
    transition: all 0.3s ease;
}
.cta-button-outline:hover {
    background: var(--color-light);
    color: var(--color-primario);
}

/* --- SECCIÓN CONTACTO --- */
.contact-options {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-button {
    background: var(--color-primario);
    color: var(--color-light);
    padding: 1rem;
    text-decoration: none;
    font-weight: bold;
    border-radius: 5px;
    transition: background 0.3s ease;
}
.contact-button:hover {
    background: #083b7a;
}
.contact-button i {
    margin-right: 0.5rem;
}

/* --- FOOTER --- */
footer {
    background: var(--color-dark);
    color: #aaa;
    text-align: center;
    padding: 2.5rem 0;
}

.social-links {
    margin-bottom: 1rem;
}

.social-links a {
    color: #aaa;
    font-size: 1.8rem;
    margin: 0 0.75rem;
    transition: color 0.3s ease;
}
.social-links a:hover {
    color: var(--color-light);
}

/* --- MEDIA QUERIES (Desktop) --- */
/* Estilos para tablets y pantallas más grandes */
@media (min-width: 768px) {
    .mobile-menu-toggle {
        display: none; /* Ocultamos la hamburguesa */
    }

    .nav-links {
        display: flex; /* Mostramos los links */
        position: static;
        width: auto;
        flex-direction: row;
        background: none;
        box-shadow: none;
    }
    
    .nav-links li {
        padding: 0;
        margin-left: 1.5rem;
    }
    
    .nav-links a:hover {
        text-decoration: underline;
    }

    .hero h1 {
        font-size: 3.5rem;
    }

    .hero .subtitulo {
        font-size: 1.2rem;
    }

    .grid-container {
        grid-template-columns: repeat(3, 1fr); /* 3 columnas en desktop */
    }
    
    .contact-options {
        flex-direction: row;
        justify-content: center;
        gap: 1.5rem;
    }
    
    .contact-button {
        padding: 1rem 1.5rem;
    }
}