body {
  font-family: sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 20px;
  background-color: #f4f4f4;
}

h1 {
  color: #333;
}

.controls {
  margin-bottom: 20px;
  padding: 15px;
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  display: flex;
  gap: 10px;
  align-items: center;
}

input[type="file"] {
  border: 1px solid #ccc;
  padding: 8px;
  border-radius: 4px;
}

button {
  padding: 10px 15px;
  border: none;
  border-radius: 4px;
  background-color: #007bff;
  color: white;
  cursor: pointer;
  font-size: 16px;
  transition: background-color 0.2s;
}

button:hover:not(:disabled) {
  background-color: #0056b3;
}

button:disabled {
  background-color: #cccccc;
  cursor: not-allowed;
}

.canvas-container {
  display: flex;
  gap: 20px;
  margin-top: 20px;
  flex-wrap: wrap; /* Allow wrapping on smaller screens */
  justify-content: center;
}

.canvas-wrapper {
  background-color: #fff;
  padding: 15px;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.canvas-wrapper h2 {
  margin-top: 0;
  color: #555;
}

canvas {
  border: 1px solid #ddd;
  max-width: 100%; /* Ensure canvases are responsive */
  height: auto;
  display: block; /* Remove extra space below canvas */
  margin: 0 auto;
}

/* --- Print Styles --- */
@media print {
  body {
    margin: 0;
    padding: 0;
    background: none;
    display: block;
  }

  .controls,
  .canvas-wrapper:first-child, /* Hide original image */
  h1 {
    display: none;
  }

  .canvas-container {
    display: block; /* Change to block for print layout */
  }

  .canvas-wrapper:last-child { /* Coloring page */
    box-shadow: none;
    padding: 0;
    margin: 0;
    border-radius: 0;
    background: none;
  }

  #coloringCanvas {
    width: 210mm; /* A4 width */
    height: 297mm; /* A4 height */
    max-width: 210mm;
    max-height: 297mm;
    page-break-after: always; /* Ensure a new page after each canvas if multiple */
    border: none;
  }
}