body {
    margin: 0;
    overflow: hidden;
    background-color: #2c3e50;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    touch-action: none; /* Empêche le zoom sur mobile */
}

.game-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100vh;
}

.ui-panel {
    position: absolute;
    top: 20px;
    background: rgba(255, 255, 255, 0.9);
    padding: 15px 30px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    text-align: center;
    z-index: 10;
    pointer-events: none; /* Laisse passer les clics au travers sauf boutons */
}

.ui-panel button {
    pointer-events: auto;
    background: #27ae60;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 5px;
    cursor: pointer;
    margin-top: 10px;
    font-weight: bold;
}

canvas {
    background-color: #e0cda7; /* Couleur Sable */
    background-image: radial-gradient(#d3c09a 15%, transparent 16%), radial-gradient(#d3c09a 15%, transparent 16%);
    background-size: 10px 10px;
    background-position: 0 0, 5px 5px;
    box-shadow: inset 0 0 50px rgba(0,0,0,0.5);
    cursor: crosshair;
}

.instructions {
    position: absolute;
    bottom: 20px;
    color: white;
    background: rgba(0,0,0,0.5);
    padding: 10px;
    border-radius: 20px;
    pointer-events: none;
}