/**
 * Estilos: Footer Principal
 * Estilo: Clean Tech / Minimalista
 */

.main-footer {
  background-color: #ffffff;
  border-top: 1px solid #e2e8f0;
  padding: 60px 0 0 0;
  margin-top: 80px;
  color: #334155;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.footer-container {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 40px;
  padding-bottom: 50px;
}

/* Sección de Identidad de Marca */
.footer-brand .footer-logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 1px;
  color: #0f172a;
  text-decoration: none;
  display: inline-block;
  margin-bottom: 15px;
}

.footer-brand .footer-logo span {
  color: #d97706;
  /* Color dorado/naranja corporativo de tus títulos */
}

.footer-brand .footer-tagline {
  font-size: 0.95rem;
  line-height: 1.6;
  color: #64748b;
  margin-bottom: 20px;
  max-width: 280px;
}

.rnt-badge {
  display: inline-block;
  background-color: #f1f5f9;
  color: #475569;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Columnas de Enlaces */
.footer-links-column h3 {
  font-size: 1rem;
  font-weight: 700;
  color: #0f172a;
  margin-top: 0;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

.footer-links-column ul li {
  margin-bottom: 12px;
}

.footer-links-column ul li a {
  color: #64748b;
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.footer-links-column ul li a:hover {
  color: #d97706;
  padding-left: 2px;
}

/* Barra inferior de Copyright */
.footer-bottom {
  border-top: 1px solid #f1f5f9;
  padding: 25px 0;
  background-color: #fafafa;
}

.footer-bottom-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: #94a3b8;
}

.footer-bottom-container p {
  margin: 0;
}

.footer-column-link {
  color: #94a3b8;
}

.dev-author {
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.dev-author-link {
  color: #d97706;
  display: inline-flex;
  align-items: center;
}

.dev-author-logo {
  width: 100px;
  fill: #d97706;
  display: block;
}

/* ==========================================
   RESPONSIVE DESIGN (Media Queries)
   ========================================== */

@media (max-width: 992px) {
  .footer-container {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
}

@media (max-width: 576px) {
  .footer-container {
    grid-template-columns: 1fr;
    gap: 35px;
    padding-left: 20px;
    padding-right: 20px;
  }

  .footer-brand .footer-tagline {
    max-width: 100%;
  }

  .footer-bottom-container {
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }
}