/* ==========================================================================
   FOOTER
   ========================================================================== */

.site-footer {
  background: linear-gradient(135deg, var(--color-azul-oscuro) 0%, var(--color-azul-marino) 100%);
  color: var(--color-blanco);
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
  position: relative;
  overflow: hidden;
}

/* Patrón decorativo de fondo */
.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle, rgba(255, 194, 0, 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.footer-container {
  max-width: var(--max-width-container);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  position: relative;
  z-index: 1;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

/* ===== FOOTER ABOUT ===== */
.footer-about {
  max-width: 400px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  text-decoration: none;
}

.footer-logo .logo-symbol {
  width: 50px;
  height: 50px;
}

.footer-logo .logo-image {
  height: 60px;
  width: auto;
  display: block;
}

.footer-logo .logo-text {
  color: var(--color-blanco);
  font-size: var(--text-2xl);
}

.footer-logo .logo-text .impacta {
  color: var(--color-dorado);
}

.footer-about p {
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
}

.footer-cooperative-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 0.5rem 1rem;
  background: rgba(255, 194, 0, 0.15);
  border: 1px solid var(--color-dorado);
  border-radius: var(--border-radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-dorado);
}

/* ===== FOOTER LINKS ===== */
.footer-section h4 {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-blanco);
  margin-bottom: var(--spacing-md);
  position: relative;
  padding-bottom: var(--spacing-xs);
}

.footer-section h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--color-dorado);
}

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

.footer-links li {
  margin-bottom: var(--spacing-xs);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-links a:hover {
  color: var(--color-dorado);
  padding-left: var(--spacing-xs);
}

/* ===== FOOTER NEWSLETTER ===== */
.footer-newsletter {
  margin-bottom: var(--spacing-md);
}

.footer-newsletter p {
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--text-sm);
  margin-bottom: var(--spacing-sm);
}

.newsletter-form {
  display: flex;
  gap: var(--spacing-xs);
}

.newsletter-form input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--border-radius-md);
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-blanco);
  font-family: var(--font-cuerpo);
  font-size: var(--text-sm);
  transition: all var(--transition-fast);
}

.newsletter-form input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.newsletter-form input:focus {
  outline: none;
  border-color: var(--color-dorado);
  background: rgba(255, 255, 255, 0.15);
}

.newsletter-form button {
  padding: 0.75rem 1.5rem;
  background: var(--color-dorado);
  color: var(--color-azul-oscuro);
  border: none;
  border-radius: var(--border-radius-md);
  font-family: var(--font-titulos);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.newsletter-form button:hover {
  background: var(--color-dorado-oscuro);
  transform: translateY(-2px);
}

/* ===== FOOTER SOCIAL ===== */
.footer-social {
  margin-top: var(--spacing-md);
}

.social-links {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--border-radius-md);
  color: var(--color-blanco);
  font-size: 1.25rem;
  text-decoration: none;
  transition: all var(--transition-normal);
}

.social-link:hover {
  background: var(--color-dorado);
  border-color: var(--color-dorado);
  color: var(--color-azul-oscuro);
  transform: translateY(-4px);
}

/* ===== FOOTER BOTTOM ===== */
.footer-bottom {
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer-copyright {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--text-sm);
}

.footer-legal {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.footer-legal a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
}

.footer-legal a:hover {
  color: var(--color-dorado);
}

.footer-legal span {
  color: rgba(255, 255, 255, 0.3);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .footer-content {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
  }
  
  .footer-about {
    grid-column: 1 / -1;
    max-width: none;
  }
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-legal {
    justify-content: center;
  }
  
  .newsletter-form {
    flex-direction: column;
  }
  
  .newsletter-form button {
    width: 100%;
  }
}

/* ===== BACK TO TOP BUTTON ===== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--color-dorado) 0%, var(--color-dorado-oscuro) 100%);
  color: var(--color-azul-oscuro);
  border: none;
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  cursor: pointer;
  z-index: 900;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-normal);
  box-shadow: 0 4px 15px rgba(255, 194, 0, 0.4);
}

.back-to-top:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(255, 194, 0, 0.6);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ===== WHATSAPP BUTTON ===== */
.whatsapp-float {
  position: fixed;
  bottom: 100px;
  right: 30px;
  width: 60px;
  height: 60px;
  background: #25D366;
  color: var(--color-blanco);
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  text-decoration: none;
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
  z-index: 900;
  transition: all var(--transition-normal);
  animation: float 3s ease-in-out infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
  animation: none;
}

@media (max-width: 768px) {
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
    font-size: 1.25rem;
  }
  
  .whatsapp-float {
    bottom: 80px;
    right: 20px;
    width: 55px;
    height: 55px;
    font-size: 1.75rem;
  }
}