/* Footer */
.footer {
  background: var(--color-surface2);
  border-top: 1px solid rgba(51, 65, 85, 0.5);
}

.footer__main {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 2rem var(--container-padding);
}

.footer__brand {
  grid-column: span 1;
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.footer__logo-img {
  width: 40px;
  height: 40px;
}

.footer__logo-text {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text-primary);
}

.footer__brand-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.footer__social {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.footer__social-link {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
  background: var(--color-surface3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  transition: var(--transition-base);
}

.footer__social-link:hover {
  background: rgba(56, 189, 248, 0.2);
  color: var(--color-primary);
}

.footer__social-icon {
  width: 20px;
  height: 20px;
}

.footer__links-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--color-text-primary);
}

.footer__link {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
  transition: var(--transition-fast);
}

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

.footer__link--icon {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.footer__link-icon {
  width: 16px;
  height: 16px;
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 1rem var(--container-padding);
  border-top: 1px solid rgba(51, 65, 85, 0.3);
}

.footer__copyright {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

/* Footer responsive */
@media (max-width: 768px) {
  .footer__main {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }

  .footer__brand {
    grid-column: span 2;
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .footer__main {
    grid-template-columns: 1fr;
  }

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