body {
    background-color: #f8f9fa;
}

#canvas-container {
    overflow: hidden;
    background-color: #f1f1f1;
}

.drop-zone {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    width: 100%;
    padding: 20px;
    text-align: center;
    cursor: pointer;
}

.drop-message {
    color: #6c757d;
    font-size: 1.2rem;
}

.qr-item {
    position: absolute;
    border: 2px dashed rgba(0, 0, 0, 0.5);
    background-color: rgba(255, 255, 255, 0.7);
    cursor: move;
    z-index: 10;
}

.qr-item.active {
    border-color: #0d6efd;
    z-index: 20;
}

.qr-resize-handle {
    position: absolute;
    width: 10px;
    height: 10px;
    background-color: #0d6efd;
    border-radius: 50%;
    right: -5px;
    bottom: -5px;
    cursor: nwse-resize;
}

#context-menu {
    position: absolute;
    display: none;
    z-index: 1000;
}

#progress-container {
    transition: opacity 0.3s ease;
}