:root{--brand-primary: #3b5bdb;--viewer-bg: #1a1a2e;--action-bar-bg: rgba(0, 0, 0, .65);--share-btn-bg: rgba(255, 255, 255, .9);--share-btn-color: #1a1a2e;--font-serif: Georgia, serif;--font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif}html,body,booklet-root{margin:0;padding:0;width:100%;height:100%;overflow:hidden;background:var(--viewer-bg)}*,*:before,*:after{box-sizing:border-box}