/* BOTÓN FLOTANTE WHATSAPP */
.wa-float {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 56px;
  height: 56px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  color: #fff;
  box-shadow: 0 4px 20px rgba(37,211,102,.45);
  z-index: 9999;
  transition: all .3s cubic-bezier(.34,1.56,.64,1);
  text-decoration: none;
}
.wa-float:hover {
  transform: scale(1.15);
  box-shadow: 0 6px 28px rgba(37,211,102,.6);
}
.wa-float i { line-height: 1; }

/* Animación pulso */
.wa-float::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: #25d366;
  animation: waPulse 2s ease-out infinite;
  z-index: -1;
}
.wa-float::before {
  content: '¿Necesitas ayuda?';
  position: absolute;
  right: 68px;
  background: #fff;
  color: #1a1a1a;
  font-size: .78rem;
  font-weight: 600;
  padding: .45rem .85rem;
  border-radius: 20px;
  white-space: nowrap;
  box-shadow: 0 4px 15px rgba(0,0,0,.12);
  opacity: 0;
  transform: translateX(10px);
  transition: all .3s;
  pointer-events: none;
  font-family: 'Inter', sans-serif;
}
.wa-float:hover::before {
  opacity: 1;
  transform: translateX(0);
}
@keyframes waPulse {
  0%   { transform: scale(1); opacity: .6; }
  100% { transform: scale(1.6); opacity: 0; }
}