/**
 * Footer Layout - Tema Oscuro Minimalista
 * Pie de página y redes sociales
 */

.footer {
  background-color: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  padding: var(--spacing-10) 0 0;
  margin-top: var(--spacing-12);
}

.footer h3 {
  color: var(--color-text-primary);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-3);
  text-align: center;
}

.footer p {
  color: var(--color-text-muted);
  text-align: center;
  margin-bottom: var(--spacing-4);
  font-size: var(--font-size-sm);
}

.footer .center {
  display: flex;
  justify-content: center;
  align-items: center;
}

.footer .full-width {
  width: 100%;
}

.footer .row {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
}

/* Social Links */
.social-links {
  margin: var(--spacing-6) 0;
  display: flex;
  justify-content: center;
  gap: var(--spacing-3);
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  transition: all var(--transition-base);
}

.social-links a:hover {
  transform: translateY(-2px);
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
}

.social-links img {
  width: 20px;
  height: 20px;
  filter: brightness(0) invert(0.7);
  transition: filter var(--transition-base);
}

.social-links a:hover img {
  filter: brightness(0) invert(1);
}

/* Made with section */
.made-with {
  background-color: var(--color-bg-primary);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-4);
  text-align: center;
  margin-top: var(--spacing-6);
}

.made-with p {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  margin: 0;
}

.made-with a {
  color: inherit;
  text-decoration: underline;
  opacity: 0.7;
}

/* Footer Links */
.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-6);
  margin-bottom: var(--spacing-6);
}

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

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

/* Footer Grid */
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-8);
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--spacing-6);
}

.footer-section h4 {
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-4);
}

.footer-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-section ul li {
  margin-bottom: var(--spacing-2);
}

.footer-section ul li a {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.footer-section ul li a:hover {
  color: var(--color-primary-light);
}

/* Responsive */
@media (max-width: 768px) {
  .footer {
    padding: var(--spacing-8) var(--spacing-4) 0;
  }

  .footer h3 {
    font-size: var(--font-size-base);
  }

  .social-links {
    gap: var(--spacing-2);
  }

  .social-links a {
    width: 36px;
    height: 36px;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-6);
  }

  .footer-links {
    flex-wrap: wrap;
    gap: var(--spacing-4);
  }
}

@media (max-width: 480px) {
  .footer h3 {
    font-size: var(--font-size-base);
    padding: 0 var(--spacing-4);
  }

  .social-links a {
    width: 32px;
    height: 32px;
  }

  .social-links img {
    width: 16px;
    height: 16px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }
}