body {
  margin: 0;
  background: #050505;
  color: #00ff00;
  font-family: "Courier New", monospace;
}

/* Header */
header {
  padding: 10px 20px;
  border-bottom: 1px solid #00ff00;
  font-size: 14px;
  letter-spacing: 2px;
}

/* Controls */
#controls {
  padding: 10px 20px;
  border-bottom: 1px solid #00ff00;
}

#controls button {
  background: transparent;
  border: 1px solid #00ff00;
  color: #00ff00;
  margin-right: 10px;
  padding: 5px 10px;
  cursor: pointer;
}

#controls button:hover {
  background: #00ff00;
  color: black;
}

/* Canvas area */
.canvas-container {
  display: flex;
  justify-content: center;
  padding: 20px;
}

canvas {
  border: 1px solid #00ff00;
  box-shadow: 0 0 10px #00ff00;
}

/* subtle scanlines */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    transparent,
    transparent 2px,
    rgba(0,255,0,0.03) 3px
  );
  pointer-events: none;
}

.status {
  padding: 5px 1px;
  font-size: 16px;
  opacity: 0.7;
}