/* ============================================
   Footer
   ============================================ */

.footer {
  background: var(--color-footer-bg);
  color: var(--color-footer-muted);
  padding-top: var(--space-16);
  padding-bottom: var(--space-8);
  border-top: 1px solid var(--color-footer-border);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer__logo {
  display: inline-flex;
  align-items: center;
  margin-bottom: var(--space-4);
  text-decoration: none;
}

.footer__logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.4rem 0.85rem;
  background: linear-gradient(180deg, #ffffff 0%, #eef7fc 100%);
  border: 1px solid rgba(10, 168, 240, 0.14);
  border-radius: var(--radius-lg);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.65) inset,
    0 8px 24px rgba(0, 0, 0, 0.28);
}

.footer__logo-img {
  display: block;
  height: 50px;
  width: auto;
  max-width: 230px;
  object-fit: contain;
  object-position: left center;
}

.footer__tagline {
  font-size: var(--font-size-sm);
  color: var(--color-footer-muted);
  margin-bottom: var(--space-5);
  line-height: var(--line-height-relaxed);
}

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

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-footer-chip);
  color: var(--color-footer-text);
  border-radius: var(--radius-lg);
  font-size: 1.125rem;
  transition: background var(--transition-base), color var(--transition-base);
}

.social-link:hover {
  background: var(--color-cyan);
  color: var(--color-on-primary);
}

.footer__heading {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-footer-text);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-4);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__links a {
  font-size: var(--font-size-sm);
  color: var(--color-footer-muted);
  transition: color var(--transition-fast);
}

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

.footer__download {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__download .btn-secondary {
  background: var(--color-footer-chip);
  color: var(--color-footer-text);
  border: 1px solid var(--color-footer-border);
}

.footer__download .btn-secondary:hover {
  background: var(--color-accent);
  color: var(--color-on-accent);
  border-color: var(--color-accent);
}

.footer__bottom {
  border-top: 1px solid var(--color-footer-border);
  padding-top: var(--space-8);
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-footer-muted);
}

@media (max-width: 1024px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
}

@media (max-width: 640px) {
  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}