html,
body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
}

/* ===========================
   FOOTER
=========================== */

#pie-principal {
    background: #2F2F2F;
    color: #fff;
    padding: 20px 20px 25px;
    text-align: center;
    box-shadow: 0 -2px 10px rgba(0,0,0,.1);
}

.logo-pie {
    text-align: center;
    margin-bottom: 45px;
}

.logo-pie img {
    width: 220px;
}

.contenido-pie {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;   /* ← todas las columnas arriba */
    gap: 80px;
}

.footer-columna {
    flex: 1;
}

.footer-columna h3 {
    font-size: 1.6rem;
    margin-bottom: 25px;
    font-weight: 700;
    color: #fff;
}

.footer-columna ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-columna li {
    margin-bottom: 14px;
}

.footer-columna a {
    color: #D5D5D5;
    text-decoration: none;
    transition: color .25s;
}

.footer-columna a:hover {
    color: #00BC6D;
}

.redes-sociales-pie {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.redes-sociales-pie img {
    width: 26px;
    transition: .25s;
    opacity: .85;
}

.redes-sociales-pie img:hover {
    opacity: 1;
    transform: translateY(-2px);
}

.pie-inferior {
    margin-top: 50px;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,.08);
    background: #2F2F2F;   /* mismo color que el footer */
    color: #A5A5A5;
    font-size: .95rem;
    text-align: center;
}

.pie-inferior p {
    margin: 0;
}

/* ===========================
   RESPONSIVE
=========================== */

@media (max-width: 768px) {

    .contenido-pie {
        flex-direction: column;
        align-items: center;
        gap: 45px;
    }

    .footer-columna {
        width: 100%;
    }

    .pie-inferior {
        padding-bottom: 80px;
    }