:root{--wa-green:#25d366;--wa-h:36px;--wa-w-collapsed:36px;--wa-w-expanded:160px}.wa-btn-header{align-items:center;background:var(--wa-green);border-radius:999px;box-shadow:0 8px 20px rgba(0,0,0,.18);box-sizing:border-box;display:inline-flex;gap:0;height:var(--wa-h);justify-content:center;overflow:hidden;padding:0;text-decoration:none;transition:width .26s ease,box-shadow .26s ease,transform .26s ease;width:var(--wa-w-collapsed);will-change:width}.wa-icon-header{display:grid;flex:0 0 auto;height:36px;place-items:center;width:36px}.wa-icon-header img{display:block;height:20px;margin-left:54px;object-fit:contain;transition:margin .22s ease;width:20px}.wa-btn-header:hover .wa-icon-header img{margin-left:10px}.wa-text-header{color:#fff;font:600 14px/1 system-ui,-apple-system,Segoe UI,Roboto,Arial;opacity:0;pointer-events:none;transform:translateX(-6px);transition:opacity .18s ease,transform .22s ease;white-space:nowrap}.wa-btn-header:hover{box-shadow:0 10px 24px rgba(0,0,0,.22);justify-content:flex-start;padding:0 10px;transform:translateY(-1px);width:var(--wa-w-expanded)}.wa-btn-header:hover .wa-text-header{opacity:1;transform:translateX(0)}.wa-btn-header:focus-visible{outline:3px solid rgba(37,211,102,.35);outline-offset:3px}@media (prefers-reduced-motion:reduce){.wa-btn-header,.wa-text-header{transition:none}}