.wa-float{position:fixed;right:20px;bottom:20px;z-index:80;width:60px;height:60px;border-radius:50%;background:#25d366;color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(0,0,0,.25);text-decoration:none;transition:transform .2s ease,box-shadow .2s ease}
.wa-float svg{width:32px;height:32px}
.wa-float:hover,.wa-float:focus-visible{transform:scale(1.08);box-shadow:0 8px 24px rgba(0,0,0,.32)}
.wa-float:focus-visible{outline:3px solid #160d30;outline-offset:3px}
.wa-float::before{content:"";position:absolute;inset:0;border-radius:50%;background:#25d366;opacity:.5;z-index:-1;animation:wa-pulse 2.4s ease-out infinite}
@keyframes wa-pulse{0%{transform:scale(1);opacity:.5}100%{transform:scale(1.6);opacity:0}}
@media (prefers-reduced-motion:reduce){.wa-float::before{animation:none;display:none}.wa-float{transition:none}}
@media (max-width:600px){.wa-float{right:14px;bottom:14px;width:56px;height:56px}}