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

.footer__grid {
  display: grid;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}
@media (min-width: 640px) {
  .footer__grid { grid-template-columns: 1.5fr 1fr 1fr; }
}
@media (min-width: 1024px) {
  .footer__grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
}

.footer__brand { display: flex; flex-direction: column; gap: var(--space-4); }
.footer__logo {
  font-family: 'Syne', system-ui, sans-serif;
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: -0.03em;
}
.footer__logo span { background: var(--gradient-brand); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.footer__tagline { font-size: 0.875rem; color: var(--color-text-muted); line-height: 1.6; max-width: 260px; }

.footer__socials {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-2);
}
.footer__social-link {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-bg-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
}
.footer__social-link:hover {
  border-color: var(--color-accent-1);
  color: var(--color-text-accent);
  background: rgba(37,99,235,0.08);
}

.footer__col h4 {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
}
.footer__col ul { display: flex; flex-direction: column; gap: var(--space-3); }
.footer__col li a {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}
.footer__col li a:hover { color: var(--color-text-accent); }

.footer__bottom {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-bg-border);
  align-items: center;
  text-align: center;
}
@media (min-width: 640px) {
  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}
.footer__bottom p { font-size: 0.8rem; color: var(--color-text-muted); }