Erreur : SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'Nom_Client' cannot be null<style>
.button {
    display: block;
    margin: 10px 0;
    padding: 12px;
    border-radius: 8px;
    text-decoration: none;
    color: white;
    font-weight: bold;
    transition: 0.2s;
}

.button.blue { background: #011F7D; }
.button:hover {
    transform: translateY(-2px);
    opacity: 0.9;
}
.card {
    background: white;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    text-align: center;
	max-width: 200px;
}
</style>
<br>
<br>


<div class="card">
<a href="index.php" class="button blue">accueil joam</a>
</div>