/* 
* Proyecto Inmobiliaria Riquelme - Footer actualizado
* Incluye: fondo oscuro, logo blanco (con filtro), estilos responsivos
*/

/* Footer */
.footer {
    background-color: var(--color-dark-gray); /* fondo oscuro */
    color: var(--color-white);
    position: relative;
}

.footer p {
    color: var(--color-white);
    opacity: 0.9;
}

.footer a {
    color: var(--color-white);
    transition: color 0.3s ease;
    opacity: 0.9;
}

.footer a:hover {
    color: var(--color-gold);
}

/* LOGO BLANCO con filtro CSS */
.footer-logo-blanca {
    filter: brightness(0) invert(1); /* convierte colores oscuros a blanco */
}

/* Back to Top Button - ACTUALIZADO */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--color-black);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--color-gold);
    color: var(--color-white);
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.2);
}

/* Media queries */
@media (max-width: 991.98px) {
    .footer {
        text-align: center;
    }

    .footer .text-lg-start,
    .footer .text-lg-end {
        text-align: center !important;
        margin-top: 1rem;
    }
}

@media (max-width: 767.98px) {
    .back-to-top {
        width: 45px;
        height: 45px;
        bottom: 20px;
        right: 20px;
    }
}