.o_sign_document_body::before {
content: "";
position: fixed;
inset: 0;
background-color: rgba(0, 0, 0, 0.6);
z-index: 9998;
}
/* Bannière de validation en lightbox centrée */
.o_sign_validate_banner {
position: fixed !important;
top: 50% !important;
left: 50% !important;
transform: translate(-50%, -50%);
z-index: 9999 !important;
background-color: white;
padding: 2rem;
border-radius: 10px;
box-shadow: 0 0 30px rgba(0,0,0,0.3);
max-width: 90vw;
width: 400px;
text-align: center;
}
