#pdf-viewer {
    width: 100%;
    height: auto;
    margin: 0 auto;
    position: relative;
    background-color: #fff;
}

#pdf-canvas {
    width: 100%;
    border: 1px solid #ccc;
}

button {
    background-color: #4CAF50;
    color: white;
    padding: 10px 20px;
    border: none;
    cursor: pointer;
    margin: 10px;
}

button[aria-disabled="true"] {
    background-color: #ccc;
    cursor: not-allowed;
}

body {
    font-family: Arial, sans-serif;
}

.pdf-viewer.dark-mode {
    background-color: #333;
    color: white;
}

.pdf-viewer.high-contrast {
    background-color: black;
    color: yellow;
}