body {
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: radial-gradient(circle, #e4b419 0%, #d2cfee 100%);
  background:url("fondo_espacio.jpg");
  font-family: 'Orbitron', sans-serif;
  overflow: hidden;
  color: white;
  touch-action: none;
}

.game-title {
  margin: 10px 0;
  color: #a5f1af;
  text-shadow: 0 0 10px #65ca6a, 0 0 20px #75ac7e;
  font-size: 28px;
  text-align: center;
}

#game-container {
  position: relative;
  width: 95vw;
  max-width: 1100px;
  aspect-ratio: 11 / 5;
  border: 3px solid #e177b6;
  box-shadow: 0 0 25px rgba(225, 119, 182, 0.4);
  background-color: #2692a5;
}

#canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* INTERFAZ SUPERIOR  */
#ui-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  padding: 15px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  pointer-events: none;
  z-index: 10;
  box-sizing: border-box;
}

#energy-bar { width: 120px; height: 15px; border: 2px solid #00ffff; background: #000; }
#energy-fill { width: 100%; height: 100%; background: #00ffff; transition: width 0.2s; }

/*  BOTÓN START MISSION (INICIO DEL JUEGO)  */
.modos {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 100;
}

#single-level {
  background: #ff0077;
  color: white;
  padding: 25px 50px;
  font-size: 28px;
  font-family: 'Orbitron', sans-serif;
  border: 4px solid #00ffff;
  cursor: pointer;
  box-shadow: 0 0 20px #ff0077;
  transition: 0.3s;
  text-transform: uppercase;
}

#single-level:hover {
  transform: scale(1.05) translate(-0%, -0%); /* Ajuste para mantener el centro */
  background: #00ffff;
  color: #ff0077;
}

.game-controls {
  margin-top: 25px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 30px;
  padding: 15px 40px;
  background: rgba(26, 92, 101, 0.3); 
  border: 2px solid #e177b6;
  border-radius: 15px;
  box-shadow: 0 0 15px rgba(225, 119, 182, 0.2);
}

.control-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.control-label {
  font-size: 10px;
  color: #a5f1af;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.game-controls button {
  width: 45px;
  height: 45px;
  background: #1a1a2e;
  border: 2px solid #00ffff;
  color: #00ffff;
  border-radius: 8px;
  font-size: 18px;
  cursor: pointer;
  transition: 0.2s;
  display: flex;
  justify-content: center;
  align-items: center;
}

.game-controls button:hover {
  background: #00ffff;
  color: #1a1a2e;
  box-shadow: 0 0 15px #00ffff;
}


.btn-shoot {
  border-color: #ff0077 !important;
  color: #ff0077 !important;
}

.btn-shoot:hover {
  background: #ff0077 !important;
  color: white !important;
  box-shadow: 0 0 15px #ff0077 !important;
}

.modal {
  display: none;
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0,0,0,0.85);
  z-index: 200;
  justify-content: center; align-items: center;
}

.modal-content {
  background: #1a1a2e;
  padding: 40px;
  border: 3px solid #ff0077;
  text-align: center;
  box-shadow: 0 0 30px #ff0077;
}

/*  ADAPTACIÓN PARA MÓVILES  */

@media (max-width: 768px) {
  .game-title {
    font-size: 20px;
    margin: 5px 0;
  }

  /* Configuracion para la proporción del juego */
  #game-container {
    aspect-ratio: 4 / 3; 
    width: 98vw;
    border-width: 2px;
  }

  /* Ajustamos el HUD (Puntos, Vidas, Energía) */
  #ui-layer {
    padding: 8px;
    font-size: 11px;
  }

  #energy-bar {
    width: 70px;
    height: 10px;
  }

  /* Botón START más cómodo para el dedo */
  #single-level {
    padding: 15px 30px;
    font-size: 18px;
  }

  /* PANEL DE CONTROLES PARA MÓVIL */
  .game-controls {
    margin-top: 15px;
    padding: 10px;
    width: 95vw;
    gap: 15px; 
  }

  .game-controls button {
    width: 60px;
    height: 60px;
    font-size: 22px;
  }

  .control-label {
    display: none;
  }

  .modal-content {
    width: 85%;
    padding: 20px;
  }
}

@media (max-height: 500px) {
  .game-title { display: none; } /* Ocultar título si hay poco espacio vertical */
  #game-container { aspect-ratio: 16 / 7; }
}