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32px);padding:12px 16px;font-size:14px;display:flex;position:absolute;bottom:85px;left:50%;transform:translate(-50%)}.fullscreen-notice button{color:#000054;background:#fff;min-width:44px;padding:4px}.initial-message{place-items:center;min-height:100dvh;margin:0;padding:24px;display:grid}@keyframes turn-forward{0%{filter:brightness();transform:rotateY(0)}to{filter:brightness(.8);transform:rotateY(-180deg)}}@keyframes turn-backward{0%{filter:brightness();transform:rotateY(0)}to{filter:brightness(.8);transform:rotateY(180deg)}}@media (width<=740px){.flip-header{flex-wrap:wrap;gap:12px;padding:12px 16px}.brand{font-size:22px}.flip-header h1{flex-basis:calc(100% - 115px);font-size:13px}.header-actions{justify-content:space-between;width:100%}.header-actions>*{flex:1}.book-stage{padding:8px}.flip-controls{justify-content:space-between;gap:10px;padding-top:10px;padding-left:12px;padding-right:12px}.flip-controls>button{min-width:44px;padding:8px 12px}.flip-controls>button span{display:none}.page-location{gap:6px;font-size:13px}.page-location label{display:none}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;animation:none!important}}@media (forced-colors:active){button,a,input{border:1px solid canvastext}.book{filter:none}}