.site-footer {
  background-color: var(--color-bg-dark);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-16);
}

.footer-main {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
  gap: var(--space-8);
  padding-bottom: var(--space-12);
}

/* Columna brand */
.footer-brand__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.footer-brand__logo img,
.footer-brand__img { height: 48px; width: auto; display: block; }
.footer-brand__logo:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 4px; border-radius: 4px; }

.footer-brand__name {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
}

.footer-brand__tagline {
  font-size: var(--text-xs);
  color: var(--color-accent);
  font-weight: 500;
}

.footer-brand__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-6);
  max-width: 36ch;
}

.footer-social {
  display: flex;
  gap: var(--space-3);
}

.footer-social__link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  transition: color var(--duration-fast) ease,
              border-color var(--duration-fast) ease;
}

.footer-social__link:hover {
  color: var(--color-text);
  border-color: rgba(255, 255, 255, 0.35);
}

.footer-social__link svg { width: 16px; height: 16px; }

/* Columnas nav */
.footer-col__title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}

.footer-col__list { display: flex; flex-direction: column; gap: var(--space-2); }

.footer-col__link {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  transition: color var(--duration-fast) ease;
}

.footer-col__link:hover { color: var(--color-text); }

/* Columna contacto */
.footer-contact__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.footer-contact__item svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-accent);
}

.footer-contact__item a {
  color: var(--color-text-muted);
  transition: color var(--duration-fast) ease;
}

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

.footer-whatsapp {
  margin-top: var(--space-4);
}

/* Bottom bar */
.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.footer-bottom__copy {
  font-size: var(--text-xs);
  color: var(--color-text-dim);
}

.footer-bottom__links {
  display: flex;
  gap: var(--space-6);
}

.footer-bottom__link {
  font-size: var(--text-xs);
  color: var(--color-text-dim);
  transition: color var(--duration-fast) ease;
}

.footer-bottom__link:hover { color: var(--color-text-muted); }

.footer-bottom__dev {
  font-size: var(--text-xs);
  color: var(--color-text-dim);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.footer-bottom__u {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-bg-dark);
  font-size: 0.65rem;
  font-weight: 800;
}

/* Responsive */
@media (max-width: 1200px) {
  .footer-main {
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-6);
  }
  .footer-main > :last-child { grid-column: 1 / -1; }
}

@media (max-width: 1023px) {
  .footer-main {
    grid-template-columns: 1fr 1fr 1fr;
    gap: var(--space-8);
  }
  .footer-brand { grid-column: 1 / -1; }
  .footer-main > :last-child { grid-column: unset; }
}

@media (max-width: 599px) {
  .footer-main { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 400px) {
  .footer-main { grid-template-columns: 1fr; }
}