.footer {
  background: var(--bg-dark);
  color: var(--text-inverse);
  padding: var(--space-2xl) 0 0;
  margin-top: var(--space-3xl);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer__brand {
  grid-column: 1 / -1;
}

.footer__logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-inverse);
  margin-bottom: var(--space-sm);
}

.footer__logo span {
  color: var(--accent);
}

.footer__tagline {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
}

.footer__column-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-md);
  color: var(--text-inverse);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__link {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.6);
  transition: color 200ms ease;
}

.footer__link:hover {
  color: var(--text-inverse);
}

.footer__social {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-sm);
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-inverse);
  font-size: 0.9rem;
  transition: background 200ms ease;
}

.footer__social-link:hover {
  background: var(--primary);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--space-md) 0;
  text-align: center;
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.4);
}

@media (min-width: 641px) {
  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }

  .footer__brand {
    grid-column: auto;
  }
}