.book-cover-spine-overlay:not(.book-cover-spine-overlay--rtl),.flip-book-page--back-cover.flip-book-page--back-cover-rtl:after,.flip-book-page--front-cover:not(.flip-book-page--front-cover-rtl):after{border-radius:5px;pointer-events:none;box-shadow:0 0 5px -1px #000,inset -1px 1px 2px hsla(0,0%,100%,.5);background:linear-gradient(90deg,#3c0d14 3px,hsla(0,0%,100%,.5) 5px,hsla(0,0%,100%,.25) 7px,hsla(0,0%,100%,.25) 10px,transparent 12px,transparent 16px,hsla(0,0%,100%,.25) 17px,transparent 22px)}.book-cover-spine-overlay--rtl,.flip-book-page--back-cover:not(.flip-book-page--back-cover-rtl):after,.flip-book-page--front-cover.flip-book-page--front-cover-rtl:after{border-radius:5px;pointer-events:none;box-shadow:0 0 5px -1px #000,inset 1px 1px 2px hsla(0,0%,100%,.5);background:linear-gradient(270deg,#3c0d14 3px,hsla(0,0%,100%,.5) 5px,hsla(0,0%,100%,.25) 7px,hsla(0,0%,100%,.25) 10px,transparent 12px,transparent 16px,hsla(0,0%,100%,.25) 17px,transparent 22px)}.book-cover-spine-overlay{position:absolute;inset:0;z-index:5}.flip-book-page--back-cover-rtl:after,.flip-book-page--back-cover:after,.flip-book-page--front-cover-rtl:after,.flip-book-page--front-cover:after{content:"";position:absolute;inset:0;z-index:2}