body {
  margin: 0;
  background: black;
  color: white;
  text-align: center;
  font-family: Arial;
}

h1 {
  margin: 10px;
}

/* Contenedor responsive */
.game-container {
  width: 100%;
  max-width: 600px;
  margin: auto;
}

/* Canvas adaptable */
canvas {
  width: 100%;
  height: auto;
  background: black;
  border: 2px solid white;
  display: block;
}

/* Controles táctiles */
.controls {
  display: none;
  justify-content: space-between;
  margin-top: 10px;
}

.controls button {
  flex: 1;
  margin: 5px;
  padding: 15px;
  font-size: 20px;
  border: none;
  border-radius: 10px;
}

/* Activar controles en móvil */
@media (max-width: 768px) {
  .controls {
    display: flex;
  }
}