body {
    margin: 0;
    padding: 0;
    background: #f5f5f5;
    font-family: Arial, sans-serif;
}

.viewer-toolbar {
    position: sticky;
    top: 0;
    z-index: 10;
    background: #e6e6e6;
    border: 1px solid #ddd;
    padding: 10px;
    display: flex;
    gap: 10px;
    align-items: center;
    justify-content: center;
}

button {
    padding: 6px 12px;
    border: 1px solid #ccc;
    background: #ffffff;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s ease-in-out;
}

button:hover {
    background: #f0f0f0;
    transform: translateY(-2px);
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.viewer-wrap {
    padding: 20px;
    text-align: center;
    width: 100%;
    overflow: hidden;
}

canvas {
    max-width: 100%;
    height: auto;
    background: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
    border-radius: 10px;
}

@media print {
    .viewer-toolbar{
        display: none !important;
    }

    canvas {
        filter: blur(12px);
    }

    body::before {
        content: "Printing from the viewer is disabled. If you have purchased this resource, please use the download button and print the downloaded PDF.";
        display: block;
        padding: 40px;
        font-size: 18px;
        line-height: 1.5;
        text-align: center;
    }
}