/* ============================================================
   footer.css — Footer corporativo con grid de columnas.
   ============================================================ */

.footer {
  position: relative;
  padding: var(--spacing-16) 0 var(--spacing-8);
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient-border);
  opacity: 0.4;
}

.footer-inner {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding-x);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-12);
  margin-bottom: var(--spacing-12);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: var(--spacing-8);
  }
}

.footer-col__title,
.footer-col h4 {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-primary);
  margin: 0 0 var(--spacing-4);
}

.footer-brand {
  margin-bottom: var(--spacing-4);
}

.footer-brand img {
  height: 40px;
  width: auto;
}

.footer-tagline {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
  max-width: 320px;
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.footer-links a {
  display: inline-block;
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent-primary);
}

.footer-contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
  font-size: var(--font-size-sm);
}

.footer-contact-list li {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  color: var(--text-secondary);
  margin: 0;
}

.footer-contact-list .icon {
  width: 16px;
  height: 16px;
  color: var(--accent-primary);
  flex: none;
}

.footer-contact-list a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
  word-break: break-word;
}

.footer-contact-list a:hover {
  color: var(--accent-primary);
}

.footer-social {
  display: flex;
  gap: var(--spacing-3);
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  color: var(--accent-primary);
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

.footer-social .icon {
  width: 18px;
  height: 18px;
}

.footer-bottom {
  padding-top: var(--spacing-6);
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-2);
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-bottom .heart {
  color: var(--color-error);
  display: inline-block;
}