body {
  font-family: sans-serif;
  background: #111;
  color: white;
  display: flex;
  flex-direction: column;
  align-items: center;
}

canvas {
  image-rendering: pixelated;
  margin-top: 20px;
}

#matrix {
  display: grid;
  grid-template-columns: repeat(var(--col-count, 10), 1fr);
  grid-gap: 1px;
  margin-top: 20px;
}

.dot {
  width: 10px;
  height: 10px;
  background: #222;
  border-radius: 50%;
}

.dot.on {
  background: orange;
}

#dropzone {
  border: 2px dashed #555;
  padding: 20px;
  margin-top: 20px;
  text-align: center;
  width: 300px;
  cursor: pointer;
}

#controls {
  margin-top: 10px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

#textInputArea {
  display: none;
  margin-top: 10px;
}

input, textarea, select {
  background: #222;
  color: white;
  border: 1px solid #555;
  padding: 5px;
  border-radius: 4px;
}

select option {
  background: #222;
  color: white;
}

button {
  background: #333;
  color: white;
  border: 1px solid #555;
  padding: 5px 10px;
  border-radius: 4px;
  cursor: pointer;
}

button:hover {
  background: #444;
}

button.active {
  background: #f60;
  border-color: #f60;
}