/* ========================================
   FOOTER.CSS — Footer del sitio
   ======================================== */

.site-footer {
    background: var(--color-noche);
    color: var(--color-crema);
    position: relative;
}

.footer__inner {
    display: grid;
    grid-template-columns: 1fr 1.4fr 1fr;
    gap: 3rem;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 4rem 2rem 3rem;
}

/* ── Columns ── */
.footer__col h4 {
    font-family: var(--font-subtitulo);
    font-size: 0.85rem;
    color: var(--color-ocre);
    letter-spacing: 0.08em;
    margin-bottom: 1.5rem;
}

/* Brand column */
.footer__brand {
    max-width: 350px;
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.footer__logo-svg {
    width: 160px;
    height: auto;
}

.footer__logo-img {
    max-width: 60px;
    height: auto;
}

.footer__tagline {
    font-size: 0.9rem;
    color: var(--color-humo);
    line-height: 1.7;
    opacity: 0.8;
    max-width: none;
}

/* Links column */
.footer__links ul {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem 1.5rem;
}

.footer__links a {
    font-size: 0.85rem;
    color: var(--color-humo);
    text-decoration: none;
    transition: color var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.footer__links a:hover {
    color: var(--color-ocre);
    padding-left: 4px;
}

/* Contact column */
.footer__email {
    display: block;
    font-size: 0.85rem;
    color: var(--color-humo);
    margin-bottom: 0.5rem;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer__email:hover {
    color: var(--color-ocre);
}

.footer__social {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.25rem;
}

.footer__social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-humo);
    transition: all var(--transition-base);
}

.footer__social-link:hover {
    background: var(--color-ocre);
    border-color: var(--color-ocre);
    color: var(--color-noche);
    transform: translateY(-3px);
}

.footer__social-link svg {
    width: 18px;
    height: 18px;
}

/* ── Sponsors ── */
.footer__sponsors {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 2rem 2rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer__sponsors-title {
    font-family: var(--font-subtitulo);
    font-size: 0.75rem;
    color: var(--color-humo);
    text-align: center;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    opacity: 0.5;
}

.footer__sponsors-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2.5rem;
    flex-wrap: wrap;
}

.footer__sponsor {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.5;
    transition: all var(--transition-base);
}

.footer__sponsor:hover {
    opacity: 1;
    filter: grayscale(0%);
}

.footer__sponsor img {
    height: 40px;
    width: auto;
    max-width: 120px;
    object-fit: contain;
}

.footer__sponsor-name {
    font-family: var(--font-cuerpo);
    font-size: 0.8rem;
    color: var(--color-humo);
    white-space: nowrap;
}

/* ── Bottom bar ── */
.footer__bottom {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 2rem 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    text-align: center;
    margin-top: 2rem;
}

.footer__bottom p {
    font-size: 0.8rem;
    color: var(--color-humo);
    opacity: 0.5;
    margin: 0 auto 0.25rem;
}

.footer__credits {
    font-size: 0.75rem !important;
    opacity: 0.35 !important;
}

.footer__credits a {
    color: var(--color-ocre);
    text-decoration: none;
    font-weight: 600;
}

.footer__credits a:hover {
    text-decoration: underline;
    opacity: 1;
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .footer__inner {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 3rem 1.5rem 2rem;
    }

    .footer__brand {
        text-align: center;
        max-width: none;
    }

    .footer__logo-svg {
        margin: 0 auto 1rem;
    }

    .footer__tagline {
        text-align: center;
    }

    .footer__links ul {
        align-items: center;
    }

    .footer__contact {
        text-align: center;
    }

    .footer__social {
        justify-content: center;
    }

    .footer__sponsor img {
        height: 30px;
    }
}