/* =========================================
   ESTILOS CORPORATIVOS TARIFAMÍNIMA v6
   Logo XXL, Footer Centrado y Textos WhatsApp
   ========================================= */

:root {
    --azul-oscuro: #001a35;
    --azul-energia: #0099e5;
    --gris-fondo: #f4f7f9;
    --texto: #001a35;
    --blanco: #ffffff;
}

body {
    font-family: 'Segoe UI', Roboto, Arial, sans-serif;
    background-color: var(--gris-fondo);
    color: var(--texto);
    margin: 0;
    line-height: 1.6;
}

/* --- NAVEGACIÓN --- */
nav {
    background: var(--blanco);
    padding: 20px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 5px solid var(--azul-energia);
}

.logo-nav { 
    height: 320px; 
    width: auto;
    display: block;
    transition: 0.3s ease-in-out;
}

.menu { display: flex; align-items: center; }

.menu a {
    text-decoration: none;
    color: var(--azul-oscuro);
    font-weight: 800;
    margin-left: 30px;
    font-size: 1.1rem;
    text-transform: uppercase;
}

/* --- HERO SECTION --- */
.hero {
    background: var(--azul-oscuro);
    color: var(--blanco);
    padding: 60px 10%;
    text-align: center;
    border-bottom: 10px solid var(--azul-energia);
}

.hero h1 { font-size: 3.5rem; margin: 0; }
.hero p { color: var(--azul-energia); font-weight: 600; margin-top: 10px; font-size: 1.3rem; text-transform: uppercase; }

/* --- GRID Y TARJETAS --- */
.container { max-width: 1200px; margin: 40px auto; padding: 0 20px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 35px; }

.card {
    background: var(--blanco);
    border-radius: 30px;
    padding: 45px 35px;
    text-align: center;
    box-shadow: 0 15px 40px rgba(0,0,0,0.06);
    border: 1px solid #e1e8ed;
}

.card i { font-size: 4rem; color: var(--azul-energia); margin-bottom: 25px; }

/* --- BOTONES --- */
.btn-cta {
    background: var(--azul-energia);
    color: white !important;
    padding: 16px 35px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    display: inline-block;
    box-shadow: 0 5px 20px rgba(0, 153, 229, 0.4);
}

/* --- FOOTER CENTRADO --- */
footer {
    background: var(--azul-oscuro);
    color: var(--blanco);
    padding: 50px 10% 30px;
    text-align: center; /* Centra todo el contenido */
    margin-top: 60px;
}

footer p { margin: 10px 0; }

.footer-info { 
    font-size: 0.85rem; 
    color: #88a0b5; 
    margin-top: 25px; 
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 25px;
    display: flex;
    justify-content: center; /* Centra los enlaces legales */
    gap: 20px;
    flex-wrap: wrap;
}

.footer-info a { 
    color: #88a0b5; 
    text-decoration: none; 
    transition: 0.3s;
}

.footer-info a:hover { color: var(--azul-energia); }

/* --- AJUSTES PARA MÓVILES --- */
@media (max-width: 768px) {
    nav { flex-direction: column; padding: 25px 5%; }
    .logo-nav { height: 180px; margin-bottom: 25px; }
    .menu { width: 100%; justify-content: center; gap: 15px; }
    .menu a { margin: 5px; font-size: 0.9rem; }
    .hero h1 { font-size: 2.5rem; }
    .footer-info { flex-direction: column; gap: 10px; }
}