/* Floating WhatsApp button, bottom-left */
.wa-float{
  position:fixed;left:max(20px,env(safe-area-inset-left));bottom:max(20px,env(safe-area-inset-bottom));
  width:58px;height:58px;border-radius:50%;background:#25D366;color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 22px rgba(0,0,0,.28);z-index:90;
  transition:transform .25s ease,box-shadow .25s ease;
}
.wa-float svg{width:32px;height:32px;fill:currentColor}
.wa-float:hover{transform:scale(1.08);box-shadow:0 12px 28px rgba(0,0,0,.34)}
.wa-float:focus-visible{outline:3px solid #fff;outline-offset:3px;box-shadow:0 0 0 6px #25D366}
.wa-float::after{content:"";position:absolute;inset:0;border-radius:50%;border:2px solid #25D366;animation:waPulse 2.6s ease-out infinite;pointer-events:none}
@keyframes waPulse{0%{transform:scale(1);opacity:.7}100%{transform:scale(1.55);opacity:0}}
@media(max-width:560px){.wa-float{width:52px;height:52px}.wa-float svg{width:29px;height:29px}}