.content{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;position:relative;margin:auto;max-width:100%;padding:20px}.content-divider{background:#ef551a;height:3.3px;width:100%;margin-bottom:20px}.books-container{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;gap:20px}.book{display:-webkit-box;display:-ms-flexbox;display:flex;gap:20px;-webkit-box-align:center;-ms-flex-align:center;align-items:center}.book-image{width:150px;max-width:100%;height:auto}.book-description{-webkit-box-flex:1;-ms-flex:1;flex:1}.book-link{cursor:pointer;color:#0074cc}.book{background:#f0f0f0;padding:20px;box-shadow:0px 0px 5px rgba(0,0,0,0.3)}@media (max-width: 768px){.book{-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column}.book-image{width:100%;height:auto}.content{padding:0}}#book-popup{display:none;top:0;left:0;width:100%;height:100%;background-color:rgba(0,0,0,0.7);z-index:999;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;-webkit-box-align:center;-ms-flex-align:center;-ms-grid-row-align:center;align-items:center;overflow:scroll}#book-popup .popup-content{background-color:#fff;padding:50px;border-radius:5px;max-width:960px;max-height:70%;text-align:left;position:relative;margin:100px auto;overflow-y:scroll;z-index:1000}#book-popup .popup-content .popup-metadata{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:start;-ms-flex-align:start;align-items:start;gap:10px}#book-popup .popup-content .popup-metadata #popup-image{border:1px solid}#book-popup .popup-content .popup-metadata #popup-image img{max-width:200px}@media (max-width: 768px){#book-popup .popup-content .popup-metadata{-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column}#book-popup .popup-content .popup-metadata #popup-image{margin:0 auto}}#book-popup .popup-content .popup-close-btn{position:absolute;top:15px;right:10px;font-size:50px;cursor:pointer;color:#888}#book-popup .popup-content #popup-title{font-size:24px;font-weight:bold;margin-bottom:10px}#book-popup .popup-content #popup-author{font-size:16px;margin-bottom:10px}#book-popup .popup-content #popup-year{font-size:14px;color:#888;margin-bottom:10px}#book-popup .popup-content #popup-isbn{font-size:14px;color:#888;margin-bottom:10px}#book-popup .popup-content #popup-quote{font-size:16px;margin-bottom:10px;font-weight:bold;font-style:italic}#book-popup .popup-content #popup-summary{font-size:16px;margin-bottom:10px}#book-popup .popup-content #popup-endorsements,#book-popup .popup-content #popup-press{margin-top:20px}#book-popup .popup-content #popup-endorsements h4,#book-popup .popup-content #popup-press h4{margin-bottom:20px}#book-popup .popup-content #popup-endorsements li,#book-popup .popup-content #popup-press li{list-style:none;margin-bottom:10px}#book-popup .popup-content #book-type-selector{background-color:#124559;color:#fff;padding:5px;border:3px solid black;font-size:20px;cursor:pointer;margin:0}#book-popup .popup-content #buy-button{background-color:#124559;color:#fff;padding:8px;margin:5px 0px 15px 0px;border:3px solid black;font-size:20px;cursor:pointer;-webkit-transition:0.2s ease-in-out;transition:0.2s ease-in-out}#book-popup .popup-content #buy-button:hover{background-color:#ef551a}#book-popup .popup-content .popup-format-selector{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between;margin-top:20px}#book-popup .popup-content .format-option{-webkit-box-flex:1;-ms-flex-positive:1;flex-grow:1;padding:10px;text-align:center;border:1px solid #ccc;cursor:pointer}#book-popup .popup-content .format-option.selected{background-color:#007bff;color:#fff;border:none}