/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background-color: var(--stone-100);
  color: var(--stone-700);
  padding-top: 4rem;
  padding-bottom: 3rem;
  border-top: 1px solid var(--stone-200);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1.25fr;
  }
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-desc {
  font-size: 0.8125rem;
  color: var(--stone-600);
  line-height: 1.625;
  max-width: 24rem;
}

.footer-nild-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-lg);
  background-color: var(--teal-50);
  border: 1px solid var(--teal-200);
  font-size: 0.6875rem;
  color: var(--teal-800);
  width: fit-content;
}

.footer-col-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--stone-900);
  margin-bottom: 0.875rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--stone-600);
}

.footer-links a:hover {
  color: var(--teal-700);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--stone-200);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--stone-500);
}

@media (min-width: 640px) {
  .footer-bottom {
    flex-direction: row;
  }
}

.btn-scroll-top {
  padding: 0.5rem;
  border-radius: var(--radius-lg);
  background-color: #ffffff;
  color: var(--stone-600);
  border: 1px solid var(--stone-300);
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-scroll-top:hover {
  color: var(--teal-700);
  background-color: var(--teal-50);
  border-color: var(--teal-300);
}