.footer {
  background: #050505;
  border-top: 1px solid var(--color-border);
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
}

.footer__top {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-2xl);
  align-items: start;
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__logo {
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-emerald);
  letter-spacing: -0.02em;
}

.footer__tagline {
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  font-style: italic;
}

.footer__cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.footer__col h4 {
  font-family: var(--font-display);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-white);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.footer__col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer__col a {
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  transition: color var(--transition-fast);
}

.footer__col a:hover {
  color: var(--color-emerald);
}

.footer__bottom {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-md);
  text-align: center;
}

.footer__bottom p {
  font-family: var(--font-body);
  font-size: var(--font-size-xs);
  color: var(--color-gray-800);
}

@media (max-width: 768px) {
  .footer__top {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .footer__cols {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* WhatsApp flotante */

@keyframes bounceIn {
  0% { transform: scale(0); opacity: 0; }
  60% { transform: scale(1.15); }
  80% { transform: scale(0.95); }
  100% { transform: scale(1); opacity: 1; }
}

.whatsapp-float {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 56px;
  height: 56px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-whatsapp);
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.3);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  opacity: 0;
  pointer-events: none;
}

.whatsapp-float.visible {
  animation: bounceIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
  pointer-events: auto;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(37, 211, 102, 0.45);
}

.whatsapp-float__tooltip {
  position: absolute;
  right: 68px;
  background: rgba(10, 10, 10, 0.9);
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: var(--font-size-xs);
  font-weight: 500;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.whatsapp-float:hover .whatsapp-float__tooltip {
  opacity: 1;
}

@media (max-width: 640px) {
  .whatsapp-float {
    bottom: 24px;
    right: 12px;
    width: 48px;
    height: 48px;
    transform-origin: bottom right;
  }

  .whatsapp-float__tooltip {
    display: none;
  }
}

@media (max-width: 640px) {
  @keyframes bounceIn {
    0% { transform: scale(0); opacity: 0; }
    60% { transform: scale(1.08); }
    80% { transform: scale(0.97); }
    100% { transform: scale(1); opacity: 1; }
  }
}