/* W9 (15 Oct 2026): the WhatsApp button and the footer's WhatsApp icon, on the CTO's instruction
   (deliverables/OWNER_WHATSAPP_RELEASE_20261015.txt in the website work folder; metadata/footer.json whatsapp).
   Website-scoped; no design-system token is changed and nothing is loaded.
   1. The footer icon: the vendored WhatsApp glyph in the design's icon box (var(--icon-md)), white on the dark
      footer like the LinkedIn, X and Instagram icons beside it.
   2. The button (home/site.css .wa-fab) calls attention when it appears: a soft ring in its own green grows and
      fades, three times, then stops. Every time it reappears (after the footer) it does so again. Never with
      reduced motion, where the source's own fade and rise are already off. */
.foot__wa img{display:block;width:100%;height:100%;filter:brightness(0) invert(1)}
.wa-fab.is-on::before{content:"";position:absolute;inset:0;border-radius:50%;background:#25D366;z-index:-1;pointer-events:none;animation:wa-fab-ring 2.4s cubic-bezier(.2,.6,.35,1) .25s 3 backwards}
@keyframes wa-fab-ring{0%{transform:scale(1);opacity:.5}80%,100%{transform:scale(1.65);opacity:0}}
@media (prefers-reduced-motion:reduce){.wa-fab.is-on::before{animation:none;opacity:0}}