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rgba(0,0,0,.06)}.page-content-scroll::-webkit-scrollbar{width:4px}.page-content-scroll::-webkit-scrollbar-track{background:transparent}.page-content-scroll::-webkit-scrollbar-thumb{background:rgba(0,0,0,.1);border-radius:999px}.page-content-scroll::-webkit-scrollbar-thumb:hover{background:rgba(0,0,0,.2)}.front-cover{background:linear-gradient(145deg,#4c1d95,#6d28d9 25%,#7c3aed 50%,#4f46e5 75%,#3730a3);position:relative;overflow:hidden}.front-cover:before{inset:0;background:radial-gradient(ellipse at 30% 20%,rgba(255,255,255,.12) 0,transparent 50%),radial-gradient(ellipse at 80% 80%,rgba(99,102,241,.3) 0,transparent 50%),radial-gradient(circle at 60% 40%,rgba(167,139,250,.15) 0,transparent 40%)}.front-cover:after,.front-cover:before{content:"";position:absolute;pointer-events:none}.front-cover:after{inset:12px;border:1.5px solid rgba(255,255,255,.15);border-radius:8px}.cover-pattern{inset:0;opacity:.04;background-image:linear-gradient(30deg,#fff 12%,transparent 12.5%,transparent 87%,#fff 87.5%,#fff),linear-gradient(150deg,#fff 12%,transparent 12.5%,transparent 87%,#fff 87.5%,#fff),linear-gradient(30deg,#fff 12%,transparent 12.5%,transparent 87%,#fff 87.5%,#fff),linear-gradient(150deg,#fff 12%,transparent 12.5%,transparent 87%,#fff 87.5%,#fff),linear-gradient(60deg,rgba(255,255,255,.5) 25%,transparent 25.5%,transparent 75%,rgba(255,255,255,.5) 0);background-size:40px 70px;background-position:0 0,0 0,20px 35px,20px 35px,0 0}.cover-ornament,.cover-pattern{position:absolute;pointer-events:none}.cover-ornament{width:50px;height:50px}.cover-ornament-tl{top:24px;right:24px;border-top:2px solid rgba(255,255,255,.2);border-right:2px solid rgba(255,255,255,.2);border-top-right-radius:8px}.cover-ornament-tr{top:24px;left:24px;border-top:2px solid rgba(255,255,255,.2);border-left:2px solid rgba(255,255,255,.2);border-top-left-radius:8px}.cover-ornament-bl{bottom:24px;right:24px;border-bottom:2px solid rgba(255,255,255,.2);border-right:2px solid rgba(255,255,255,.2);border-bottom-right-radius:8px}.cover-ornament-br{bottom:24px;left:24px;border-bottom:2px solid rgba(255,255,255,.2);border-left:2px solid rgba(255,255,255,.2);border-bottom-left-radius:8px}.back-cover{background:linear-gradient(145deg,#1e1b4b,#312e81 30%,#3730a3 60%,#1e1b4b);position:relative;overflow:hidden}.back-cover:before{inset:0;background:radial-gradient(ellipse at 70% 30%,rgba(99,102,241,.15) 0,transparent 50%),radial-gradient(ellipse at 20% 70%,rgba(139,92,246,.1) 0,transparent 50%)}.back-cover:after,.back-cover:before{content:"";position:absolute;pointer-events:none}.back-cover:after{inset:12px;border:1px solid rgba(255,255,255,.08);border-radius:8px}.cover-spine-edge-right{box-shadow:inset -4px 0 16px rgba(0,0,0,.2),-2px 0 6px rgba(0,0,0,.1)}.cover-spine-edge-left{box-shadow:inset 4px 0 16px rgba(0,0,0,.2),2px 0 6px rgba(0,0,0,.1)}@keyframes shimmer{0%{transform:translateX(-100%) rotate(15deg)}to{transform:translateX(200%) rotate(15deg)}}.cover-shimmer{position:absolute;top:-50%;left:-50%;width:50%;height:200%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.05) 45%,rgba(255,255,255,.1) 50%,rgba(255,255,255,.05) 55%,transparent);animation:shimmer 6s ease-in-out infinite;pointer-events:none}@keyframes mobileSlideInRight{0%{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}@keyframes mobileSlideInLeft{0%{transform:translateX(-100%);opacity:0}to{transform:translateX(0);opacity:1}}@keyframes mobileSlideOutLeft{0%{transform:translateX(0);opacity:1}to{transform:translateX(-100%);opacity:0}}@keyframes mobileSlideOutRight{0%{transform:translateX(0);opacity:1}to{transform:translateX(100%);opacity:0}}.book-thickness-right{right:-3px;background:linear-gradient(90deg,rgba(0,0,0,.1) 0,rgba(100,80,160,.3) 50%,rgba(0,0,0,.15));border-radius:0 3px 3px 0}.book-thickness-left,.book-thickness-right{position:absolute;top:3px;bottom:3px;width:6px;z-index:-1}.book-thickness-left{left:-3px;background:linear-gradient(270deg,rgba(0,0,0,.1) 0,rgba(100,80,160,.3) 50%,rgba(0,0,0,.15));border-radius:3px 0 0 3px}.page-number-circle{width:24px;height:24px;display:flex;align-items:center;justify-content:center;border-radius:50%;font-size:10px;background:rgba(0,0,0,.04);color:rgba(0,0,0,.35)}.toc-mobile-overlay{animation:fadeIn .2s ease forwards}.toc-mobile-sheet{animation:slideUpToc .3s ease forwards}@keyframes slideUpToc{0%{transform:translateY(100%)}to{transform:translateY(0)}}