/* ==========================================================================
   9. FOOTER (Basado en el Mapa del Sitio)
   ========================================================================== */
.footer {
    background-color: #f8fafc;
    border-top: 1px solid rgba(0, 157, 255, 0.12);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    color: var(--color-text-dark);
}

.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer__brand p {
    font-size: 0.95rem;
    margin: 1rem 0;
    max-width: 320px;
}

.footer__socials {
    display: flex;
    gap: 12px;
    margin-top: 1rem;
}

.footer__social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(0, 157, 255, 0.1);
    color: var(--color-primary);
    font-size: 1.25rem;
    transition: all var(--transition-fast);
}

.footer__social-link:hover {
    background: var(--color-primary);
    color: #ffffff;
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0, 157, 255, 0.3);
}

.footer__col h4 {
    font-size: 1.05rem;
    margin-bottom: 1.2rem;
    color: var(--color-text-dark);
    font-weight: 700;
}

.footer__col ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer__col a {
    color: var(--color-text-muted);
    font-size: 0.92rem;
    transition: color var(--transition-fast);
}

.footer__col a:hover {
    color: var(--color-primary);
}

.footer__info-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 0.9rem;
    color: var(--color-text-muted);
    font-size: 0.92rem;
}

.footer__info-item i {
    font-size: 1.2rem;
    color: var(--color-primary);
    margin-top: 2px;
    flex-shrink: 0;
}

.footer__bottom {
    border-top: 1px solid rgba(0, 0, 0, 0.06);
    padding-top: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}


/* ==========================================================================
   ESTILOS DEL PIE DE PÁGINA
   ========================================================================== */
.footer {
    background: #ffffff;
    border-top: 1px solid rgba(0, 160, 255, 0.15);
    padding: 4.5rem 0 2rem 0;
    color: #334155;
}

.footer__grid-4 {
    display: grid;
    grid-template-columns: 1.3fr 1.3fr 1fr 1fr;
    gap: 2.5rem;
    margin-bottom: 3.5rem;
}

@media (max-width: 992px) {
    .footer__grid-4 {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 600px) {
    .footer__grid-4 {
        grid-template-columns: 1fr;
    }
}

.footer__brand-col p {
    font-size: 0.88rem;
    line-height: 1.55;
    color: #64748b;
    margin-bottom: 1.25rem;
    max-width: 320px;
}

.footer-tech-badge {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #0088cc;
}

.footer-tech-badge__dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #00bfff;
    box-shadow: 0 0 6px #00bfff;
}

.footer__col h4 {
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: #001a35;
    margin-bottom: 1.25rem;
}

.footer__subgrid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem 1.25rem;
}

.footer__subgrid-2 a {
    font-size: 0.84rem;
    color: #556b82;
    transition: color 0.2s ease;
}

.footer__subgrid-2 a:hover {
    color: #0070f3;
}

.footer__info-list {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.footer__info-row {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
    font-size: 0.85rem;
    color: #556b82;
    line-height: 1.45;
}

.footer__info-row i {
    color: #0070f3;
    font-size: 1.15rem;
    margin-top: 2px;
    flex-shrink: 0;
}

.footer__info-row a {
    color: #556b82;
}

.footer__info-row a:hover {
    color: #0070f3;
}

.footer__bottom-bar {
    border-top: 1px solid rgba(0, 0, 0, 0.06);
    padding-top: 1.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: #94a3b8;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer__bottom-links {
    display: flex;
    gap: 1.5rem;
}

.footer__bottom-links a {
    color: #64748b;
    transition: color 0.2s ease;
}

.footer__bottom-links a:hover {
    color: #0070f3;
}


/* ==========================================================================
   FOOTER RESPONSIVE
   ========================================================================== */
@media (max-width: 992px) {
    .footer__grid-4 {
        grid-template-columns: 1fr 1fr;
        gap: 2.5rem;
    }

}

@media (max-width: 640px) {
    /* Footer en móvil */
    .footer {
        padding: 3rem 0 1.5rem 0;
    }

    .footer__grid-4 {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer__bottom-bar {
        flex-direction: column;
        text-align: center;
        gap: 0.85rem;
    }

    .footer__bottom-links {
        justify-content: center;
        flex-wrap: wrap;
        gap: 1rem;
    }

}