/* Footer — Ft1 Mast-headed, oscuro (coherente con las tarjetas "premium" del resto del sitio). */

.site-footer {
  background: var(--color-ink-surface);
  color: var(--color-accent-ink);
  padding-block: var(--space-2xl) var(--space-xl);
}

.footer__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-2xl);
  flex-wrap: wrap;
  padding-bottom: var(--space-xl);
}

.footer__brand .nav__wordmark { font-size: var(--text-xl); color: var(--color-accent-ink); }
.footer__tagline {
  margin-top: var(--space-xs);
  font-size: var(--text-sm);
  color: var(--color-muted-on-dark);
  max-width: 28ch;
}

.footer__links {
  display: flex;
  gap: var(--space-xl);
  flex-wrap: wrap;
}
.footer__col h4 {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted-on-dark);
  margin-bottom: var(--space-sm);
}
.footer__col ul { display: flex; flex-direction: column; gap: var(--space-xs); }
.footer__col a {
  font-size: var(--text-sm);
  color: var(--color-muted-on-dark);
  white-space: nowrap;
  transition: color var(--dur-short) var(--ease-out);
}
.footer__col a:hover { color: var(--color-accent-ink); }

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-rule-on-dark);
}

.footer__social {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}
.footer__social a {
  display: inline-flex;
  min-width: 32px;
  min-height: 32px;
  align-items: center;
  justify-content: center;
  opacity: 0.6;
  transition: opacity var(--dur-short) var(--ease-out);
}
.footer__social a:hover { opacity: 1; }
.footer__social img { filter: grayscale(1) invert(1); }

.footer__copy {
  font-size: var(--text-xs);
  color: var(--color-muted-on-dark);
}

@media (max-width: 40rem) {
  .footer__bottom { flex-direction: column; align-items: flex-start; }
}