/* RESET */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    background: #e5e5e5;
    font-family: Arial, Helvetica, sans-serif;
}

/* WRAPPER */
.flipbook-wrapper {
    width: 100%;
    display: flex;
    justify-content: center;
    margin-top: 20px;
}

/* FLIPBOOK */
#flipbook {
    background: #fff;
    box-shadow: 0 15px 40px rgba(0,0,0,0.35);
}

/* PAGE */
.page {
    background: white;
    overflow: hidden;
}

.page img {
    width: 100%;
    height: 100%;
  /*  object-fit: contain;*/
}

/* CONTROLS */
.controls {
    text-align: center;
    margin: 20px 0;
}

.controls button {
    background: #000;
    color: #fff;
    border: none;
    padding: 10px 22px;
    font-size: 28px;
    cursor: pointer;
    border-radius: 6px;
    transition: 0.3s;
}

.controls button:hover {
    background: #444;
}

/* MOBILE */
@media (max-width: 768px) {
    .controls button {
        font-size: 24px;
        padding: 8px 18px;
    }
}