.whatsapp-float{position:fixed;right:max(20px,env(safe-area-inset-right));bottom:max(20px,env(safe-area-inset-bottom));z-index:40;display:flex;align-items:center;justify-content:center;gap:10px;min-height:56px;padding:12px 18px;border:2px solid var(--white);border-radius:32px;background:var(--blue);color:var(--white);font-size:14px;font-weight:700;line-height:1.3;box-shadow:0 4px 18px #051e3738;transition:background .15s,transform .15s}
.whatsapp-float img{width:24px;height:24px;filter:brightness(0) invert(1)}
.whatsapp-float:hover{background:var(--blue-hover);transform:translateY(-2px)}
.whatsapp-float:focus-visible{outline:3px solid var(--navy);outline-offset:4px}
.site-footer{padding-bottom:104px}
@media(max-width:640px){.whatsapp-float{min-height:52px;padding:10px 15px;font-size:13px;right:max(16px,env(safe-area-inset-right));bottom:max(16px,env(safe-area-inset-bottom))}}
@media(prefers-reduced-motion:reduce){.whatsapp-float{transition:none}}
@media print{.whatsapp-float{display:none}}