:root {
  --neon-pink: #ff00ff;
  --neon-cyan: #00ffff;
  --neon-purple: #9900ff;
  --neon-green: #00ff00;
  --dark-bg: #0a0a1a;
  --grid-color: rgba(0, 255, 255, 0.2);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: var(--dark-bg);
  font-family: 'Courier New', monospace;
  color: var(--neon-cyan);
  overflow: hidden;
  min-height: 100vh;
}

.crt-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.1) 0px,
    rgba(0, 0, 0, 0.1) 1px,
    transparent 1px,
    transparent 2px
  );
  z-index: 100;
}

.game-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px;
  max-width: 900px;
  margin: 0 auto;
}

.game-header {
  text-align: center;
  margin-bottom: 20px;
}

.game-header h1 {
  font-size: 3rem;
  text-shadow: 0 0 10px var(--neon-pink), 0 0 20px var(--neon-pink);
  letter-spacing: 4px;
}

.year {
  color: var(--neon-cyan);
  text-shadow: 0 0 10px var(--neon-cyan), 0 0 20px var(--neon-cyan);
}

.hud {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 15px;
  font-size: 1.2rem;
}

.hud-item {
  padding: 10px 20px;
  border: 2px solid var(--neon-purple);
  border-radius: 5px;
  box-shadow: 0 0 10px var(--neon-purple);
}

.canvas-wrapper {
  border: 4px solid var(--neon-cyan);
  border-radius: 10px;
  box-shadow: 0 0 20px var(--neon-cyan), inset 0 0 50px rgba(0, 255, 255, 0.1);
  overflow: hidden;
}

#game-canvas {
  display: block;
  background: linear-gradient(180deg, #0a0a1a 0%, #1a0a2a 100%);
}

.game-controls {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
  margin-top: 20px;
  width: 100%;
}

.arcade-btn {
  background: transparent;
  color: var(--neon-green);
  border: 3px solid var(--neon-green);
  padding: 12px 30px;
  font-family: 'Courier New', monospace;
  font-size: 1.1rem;
  cursor: pointer;
  text-shadow: 0 0 5px var(--neon-green);
  box-shadow: 0 0 10px var(--neon-green);
  transition: all 0.2s;
  border-radius: 5px;
}

.arcade-btn:hover {
  background: var(--neon-green);
  color: var(--dark-bg);
  box-shadow: 0 0 20px var(--neon-green);
}

.instructions {
  font-size: 0.9rem;
  color: var(--neon-purple);
  text-align: center;
  letter-spacing: 1px;
}

.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 50;
}

.overlay.hidden {
  display: none;
}

.overlay-content {
  text-align: center;
  padding: 40px;
  border: 4px solid var(--neon-pink);
  border-radius: 15px;
  box-shadow: 0 0 30px var(--neon-pink);
  background: var(--dark-bg);
}

.overlay-content h2 {
  font-size: 2.5rem;
  color: var(--neon-pink);
  text-shadow: 0 0 10px var(--neon-pink);
  margin-bottom: 20px;
}

.overlay-content p {
  font-size: 1.2rem;
  margin-bottom: 30px;
  color: var(--neon-cyan);
}

@media (max-width: 850px) {
  .canvas-wrapper {
    border-width: 2px;
  }
  #game-canvas {
    max-width: 100%;
    height: auto;
  }
  .game-header h1 {
    font-size: 2rem;
  }
  .hud {
    gap: 20px;
    font-size: 1rem;
  }
}