.cfb-book{

    width:100%;
    max-width:900px;
    margin:40px auto;
    background:#fafafa;
    border-radius:12px;
    overflow:hidden;
    box-shadow:0 15px 50px rgba(0,0,0,.18);

}

.cfb-loader{

    padding:50px;
    text-align:center;
    font-size:20px;

}

.cfb-pages{

    position:relative;
    width:100%;
    min-height:800px;
    background:white;

}

.cfb-page{

    display:flex;
    justify-content:center;
    padding:30px;

}

.cfb-page canvas{

    max-width:100%;
    height:auto;
    box-shadow:0 8px 20px rgba(0,0,0,.18);

}

.cfb-controls{

    display:flex;
    justify-content:center;
    align-items:center;
    gap:25px;
    padding:20px;

}

.cfb-controls button{

    background:#0B5ED7;
    color:white;
    border:none;
    border-radius:6px;
    padding:10px 20px;
    cursor:pointer;
    font-size:16px;

}

.cfb-controls button:hover{

    background:#084298;

}

.page-number{

    font-size:18px;
    font-weight:bold;

}