html,
body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: black; /* o cualquier otro color base */
}

canvas {
  
  display: block;
}

#puntos {
    position: absolute;
    top: 10px;
    right: 10px;
    color: white;
    background: rgba(0, 0, 0, 0.5);
    padding: 10px;
    font-family: monospace;
    z-index: 1000;
}

#mensaje-espera {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: yellow;
    font-size: 24px;
    background: rgba(0, 0, 0, 0.7);
    padding: 20px;
    border-radius: 10px;
    display: none;
    z-index: 1001;
}

#controles {
    display: none;
    position: fixed;
    bottom: 10px;
    left: 10px;
    z-index: 1000;
}

#powerups {
    position: fixed;
    bottom: 10px;
    right: 10px;
    z-index: 1001;
    background: rgba(0, 0, 0, 0.5);
    padding: 5px;
    border-radius: 8px;
}

.btn {
    width: 50px;
    height: 50px;
    margin: 2px;
    font-size: 24px;
    text-align: center;
}

.btn-small {
    width: 80px;
    font-size: 12px;
    margin: 2px;
}

@media (max-width: 768px) {
    #controles {
    display: block;
    }

    .btn {
    width: 60px;
    height: 60px;
    font-size: 28px;
    }
}