#booklet-container {
    text-align: center;
    max-width: 600px;
    margin: auto;
    position: relative;
}

#pdf-canvas {
    display: block;
    margin: auto;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
}

#pdf-canvas-container {
    position: relative;
    display: inline-block;
}

.nav-icon {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 24px;
    width: 56px;
    height: 56px;
    cursor: pointer;
    color: #0073aa;
    background-color: rgba(255, 255, 255, 0.8);
    padding: 10px;
    border-radius: 50%;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transition: background-color 0.2s ease;
    user-select: none;
    line-height: 1.3;
}

.nav-icon:hover {
    background-color: #005a87;
    color: rgba(255, 255, 255, 0.8);
}

#prev-page {
    left: -40px;
}

#next-page {
    right: -40px;
}