#footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-purple);
  box-shadow: 0 -1px 30px rgba(124, 58, 237, 0.1);
  overflow-x: hidden; /* footer lives outside <main> so needs its own clip */
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: var(--space-3xl);
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-2xl);
}

.footer-brand .logo { margin-bottom: var(--space-md); }

.footer-tagline {
  font-size: var(--text-sm);
  color: var(--color-muted);
  line-height: 1.6;
  max-width: 260px;
  margin-bottom: var(--space-lg);
}

.social-links {
  display: flex;
  gap: var(--space-md);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-muted);
  transition: all var(--transition-base);
}
.social-link:hover {
  background: var(--color-purple);
  border-color: var(--color-purple);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--color-purple-glow);
}

.footer-links,
.footer-contact {
  padding-top: var(--space-xs);
}

.footer-heading {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-lg);
}

.footer-links ul,
.footer-contact ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-links a,
.footer-contact a {
  font-size: var(--text-sm);
  color: var(--color-muted);
  transition: color var(--transition-fast);
}
.footer-links a:hover,
.footer-contact a:hover {
  color: var(--color-purple-light);
}

.footer-bottom { border-top: 1px solid var(--color-border); }

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  padding-block: var(--space-lg);
  flex-wrap: wrap;
}

.footer-bottom p {
  font-size: var(--text-xs);
  color: var(--color-muted-2);
}

.footer-disclaimer {
  max-width: 400px;
  text-align: center;
}

.back-to-top {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--color-muted);
  transition: color var(--transition-fast);
  white-space: nowrap;
}
.back-to-top:hover { color: var(--color-purple-light); }

@media (max-width: 900px) {
  .footer-inner { grid-template-columns: 1fr 1fr; gap: var(--space-2xl); }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom-inner { flex-direction: column; text-align: center; }
  .footer-disclaimer { text-align: center; }
}