.footer {
    background-color: var(--color-surface, #f8f9fa);
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    padding: 4.5rem 0 2rem;
    position: relative;
    overflow: hidden;
}

/* Línea superior decorativa con degradado suave */
.footer::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--color-primary, #e63946), var(--color-primary-light, #ff4d5d), transparent);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 0.8fr 1fr 1.2fr;
    gap: 2.5rem;
    margin-bottom: 3.5rem;
}

/* Manejo Inteligente de Logos */
.footer-brand {
    margin-bottom: 1.2rem;
}

.footer-logo-link img {
    max-height: 48px;
    width: auto;
    object-fit: contain;
    transition: opacity 0.3s ease;
}

/* Cambio dinámico según tema */
.logo-img-dark { display: none; }
body.dark-theme .logo-img { display: none; }
body.dark-theme .logo-img-dark { display: block; }

.footer-text {
    color: var(--color-text-secondary, #6c757d);
    line-height: 1.7;
    font-size: 0.925rem;
    margin-bottom: 1.5rem;
}

/* Redes Sociales en Formato Squircle Moderno */
.footer-social {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background-color: rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 10px;
    color: var(--color-text-secondary, #495057);
    font-size: 0.95rem;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.footer-social a:hover {
    background-color: var(--color-primary, #e63946);
    color: #ffffff;
    border-color: var(--color-primary, #e63946);
    transform: translateY(-4px);
    box-shadow: 0 6px 15px rgba(230, 57, 70, 0.25);
}

/* Encabezados de Columna con Línea de Acento */
.footer-heading {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text, #1a1a1a);
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.6rem;
}

.footer-heading::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 28px;
    height: 2px;
    background-color: var(--color-primary, #e63946);
    border-radius: 2px;
}

/* Enlaces con Micro-Animación de Desplazamiento */
.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.footer-links a {
    color: var(--color-text-secondary, #6c757d);
    text-decoration: none;
    font-size: 0.925rem;
    transition: all 0.25s ease;
    display: inline-flex;
    align-items: center;
}

.footer-links a:hover {
    color: var(--color-primary, #e63946);
    transform: translateX(6px);
}

/* Lista de Contacto Limpia y Alineada */
.footer-contact {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-contact li {
    color: var(--color-text-secondary, #6c757d);
    display: flex;
    align-items: center; /* Alineación centrado vertical */
    gap: 12px;
    font-size: 0.925rem;
    line-height: 1.4;
}

/* Estilos refinados para los iconos de contacto */
.footer-contact i {
    color: var(--color-primary, #e63946);
    font-size: 0.9rem;
    background: rgba(230, 57, 70, 0.08);
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

/* Corrección especial para enlaces dentro de la lista de contacto (PQR'S, Email) */
.footer-contact a {
    color: var(--color-text-secondary, #6c757d);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.25s ease;
    display: inline-flex;
    align-items: center;
}

.footer-contact a:hover {
    color: var(--color-primary, #e63946);
    transform: translateX(4px);
}

/* Efecto hover interactivo al pasar por el enlace de PQR'S */
.footer-contact li:has(a):hover i {
    background-color: var(--color-primary, #e63946);
    color: #ffffff;
    box-shadow: 0 4px 10px rgba(230, 57, 70, 0.25);
}

/* Sección Inferior / Créditos */
.footer-bottom {
    padding-top: 1.8rem;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--color-text-secondary, #6c757d);
}

.footer-bottom strong {
    color: var(--color-text, #1a1a1a);
    font-weight: 600;
}

.developer-credit a {
    color: var(--color-primary, #e63946);
    text-decoration: none;
    font-weight: 700;
    transition: opacity 0.2s;
}

.developer-credit a:hover {
    text-decoration: underline;
    opacity: 0.85;
}

/* Responsividad Impecable */
@media (max-width: 992px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
}

@media (max-width: 576px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}