.sivte-whatsapp-button {
    position: fixed;
    right: max(24px, env(safe-area-inset-right));
    bottom: max(24px, env(safe-area-inset-bottom));
    z-index: 9990;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-sizing: border-box;
    min-width: 56px;
    min-height: 56px;
    padding: 12px 18px;
    border: 2px solid #fff;
    border-radius: 999px;
    background: #075e54;
    color: #fff;
    font: 600 15px/1.2 system-ui, sans-serif;
    text-decoration: none;
    box-shadow: 0 4px 18px rgb(0 0 0 / 18%);
}
.sivte-whatsapp-button:visited { color: #fff; }
.sivte-whatsapp-button:hover { background: #064c44; color: #fff; text-decoration: none; }
.sivte-whatsapp-button:focus-visible { outline: 3px solid #075e54; outline-offset: 4px; }
.sivte-whatsapp-button svg { flex: 0 0 28px; display: block; }
@media (max-width: 600px) {
    .sivte-whatsapp-button {
        right: max(16px, env(safe-area-inset-right));
        bottom: max(16px, env(safe-area-inset-bottom));
        width: 56px;
        height: 56px;
        padding: 12px;
    }
    .sivte-whatsapp-button .sivte-whatsapp-label { display: none; }
}
@media print { .sivte-whatsapp-button { display: none; } }