/* ============================================================
   WhatsApp floating button — global chrome, appears once the
   hero has scrolled past (toggled by js/whatsapp-float.js)
   ============================================================ */

.whatsapp-float {
  position: fixed;
  right: var(--space-5);
  bottom: var(--space-5);
  z-index: var(--z-whatsapp-float);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-pill);
  background: var(--color-navy-900);
  color: var(--color-accent-primary);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(16px) scale(0.9);
  pointer-events: none;
  transition: opacity var(--duration-base) var(--ease-out), transform var(--duration-base) var(--ease-out);
}

.whatsapp-float.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.whatsapp-float svg {
  width: 26px;
  height: 26px;
}

.whatsapp-float::before {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--color-accent-primary);
  opacity: 0.5;
  animation: whatsapp-pulse 2.4s ease-out infinite;
}

@keyframes whatsapp-pulse {
  0% { transform: scale(0.9); opacity: 0.5; }
  100% { transform: scale(1.25); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .whatsapp-float::before {
    display: none;
  }
}