.bu-whatsapp{position:fixed;z-index:90;bottom:calc(20px + env(safe-area-inset-bottom,0px));display:flex;flex-direction:column;gap:8px;align-items:flex-end;max-width:calc(100vw - 32px);font-family:Inter,system-ui,sans-serif}
.bu-whatsapp--right{right:20px}.bu-whatsapp--left{left:20px;align-items:flex-start}
.bu-whatsapp-button{display:inline-flex;align-items:center;justify-content:center;width:56px;height:56px;min-height:56px;max-width:56px;padding:0;border:1px solid #087b3e;border-radius:50%;background:#dff7e9;color:#075e34;text-decoration:none;box-shadow:0 5px 20px #173b2026;transition:background-color .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease}
.bu-whatsapp-button svg{flex:none}.bu-whatsapp-button span{display:none}.bu-whatsapp-button:hover,.bu-whatsapp-button:focus-visible{background:#087b3e;color:#fff;box-shadow:0 8px 24px #173b2038;transform:translateY(-2px)}
.bu-whatsapp-button:focus-visible,.bu-whatsapp-setup:focus-visible{outline:3px solid #472385;outline-offset:4px}.bu-whatsapp-button:active{transform:translateY(0)}
.bu-whatsapp-button:disabled{opacity:1;cursor:default;transform:none;background:#dff7e9;color:#075e34}
.bu-whatsapp-setup{max-width:220px;padding:6px 10px;background:#fff;color:#333;border:1px solid #ccc;border-radius:8px;font-size:12px;line-height:1.4;text-decoration:underline}
@media(max-width:640px){.bu-whatsapp{bottom:calc(12px + env(safe-area-inset-bottom,0px))}.bu-whatsapp--right{right:12px}.bu-whatsapp--left{left:12px}}
@media(prefers-reduced-motion:reduce){.bu-whatsapp-button{transition:none;transform:none!important}}