/* =========================
   Footer (usa tus tokens y .btn)
========================= */
.site-footer{
  background: var(--brand-900);
  color: var(--on-dark);
  padding: 56px 0 22px;
}

.site-footer__inner{
  display:flex;
  flex-direction:column;
  gap: 28px;
}

.site-footer__grid{
  display:grid;
  grid-template-columns: 1.2fr 1fr 1fr 1fr;
  gap: 26px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(255,255,255,.12);
}

.site-footer__brand{
  display:flex;
  flex-direction:column;
  gap: 12px;
}

.site-footer__logo img{
  display:block;
  height: 50px;
  width:auto;
  filter: brightness(1.05);
}

.site-footer__tagline{
  margin: 0;
  color: var(--on-dark-muted);
  max-width: 38ch;
  line-height: 1.55;
}

.site-footer__title{
  margin: 0 0 12px;
  font-size: 1.10rem;
  letter-spacing: .02em;
  text-transform: uppercase;
  color: var(--on-dark);
}

.site-footer__list{
  list-style:none;
  padding:0;
  margin:0;
  display:flex;
  flex-direction:column;
  gap: 4px;
}

.site-footer__list a{
  color: var(--on-dark);
  text-decoration:none;
  opacity: .92;
  transition: opacity .18s ease, transform .18s ease;
}

.site-footer__list a:hover,
.site-footer__list a:focus-visible{
  opacity: 1;
  text-decoration: underline;
}

.site-footer__muted{
  color: var(--on-dark-muted);
}

.site-footer__sep{
  opacity:.55;
  margin: 0 6px;
}

.site-footer__cta{
  margin-top: 14px;
  align-self:flex-start;
  padding: 10px 22px;
}

.site-footer__bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 18px;
}

.site-footer__social{
  display:flex;
  gap: 12px;
  align-items:center;
}

.social{
  width: 40px;
  height: 40px;
  border-radius: 999px;
  display:grid;
  place-items:center;
  border: 1px solid rgba(255,255,255,.22);
  background: rgba(255,255,255,.06);
  transition: transform .18s ease, background-color .18s ease, border-color .18s ease;
}

.social:hover,
.social:focus-visible{
  background: rgba(255,255,255,.12);
  border-color: rgba(255,255,255,.34);
  transform: translateY(-1px);
  outline: none;
}

.social svg{
  width: 18px;
  height: 18px;
  color: #fff;
  fill: rgb(255, 255, 255);
}

.site-footer__copy{
  margin: 0;
  color: var(--on-dark-muted);
  font-size: .95rem;
}

/* Responsive */
@media (max-width: 980px){
  .site-footer__grid{
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px){
  .site-footer{
    padding: 44px 0 18px;
  }
  .site-footer__grid{
    grid-template-columns: 1fr;
  }
  .site-footer__bottom{
    flex-direction:column;
    align-items:flex-start;
  }
}