body {
    background-color: #f8f9fa;
}

header h1 {
    margin: 0;
}

#table-leaderboard-compte tbody:empty::before,
#table-leaderboard-mastermind tbody:empty::before,
#table-leaderboard-memoire tbody:empty::before {
    content: "Aucun score disponible.";
    display: block;
    padding: 0.5rem;
    font-style: italic;
    color: #666;
}