/* style.css */
#drop-area.highlight {
    border-color: #2563eb; /* blue-600 */
    background-color: #eff6ff; /* blue-50 */
}

/* Canvas standard size for A5 sheet (approximately for display) */
#final-canvas {
    background: white;
    /* Aspect ratio for A5 (148mm x 210mm is roughly 1:1.41) */
    width: 350px; /* Base width for display, will scale on mobile */
    height: 495px;
}