body {
    margin: 0;
    padding: 0;
    background-color: #0d1b2a;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    font-family: 'Arial', sans-serif;
    overflow: hidden;
}

#jeu-container {
    border: 4px solid #ffd700;
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
    background-color: #13294b; /* Ton couleur_bleu_nuit */
}

canvas {
    display: block;
}