.handbook-book-container{perspective:2000px;transform-style:preserve-3d}.perspective-\[2000px\]{perspective:2000px}.scrollbar-hide{-ms-overflow-style:none;scrollbar-width:none}.scrollbar-hide::-webkit-scrollbar{display:none}.handbook-page{width:100%;height:100%;transform-style:preserve-3d;backface-visibility:hidden}.handbook-page.left-page{transform-origin:right center}.handbook-page.right-page{transform-origin:left center}@keyframes pageTurnRight{0%{transform:rotateY(0)}to{transform:rotateY(-180deg)}}@keyframes pageTurnLeft{0%{transform:rotateY(-180deg)}to{transform:rotateY(0)}}.handbook-page.turning-right{animation:pageTurnRight .8s ease-in-out forwards}.handbook-page.turning-left{animation:pageTurnLeft .8s ease-in-out forwards}.handbook-book-container:before{content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;background:linear-gradient(to bottom,rgba(0,0,0,.1),rgba(0,0,0,.2) 50%,rgba(0,0,0,.1));transform:translate(-50%);z-index:10;pointer-events:none}.handbook-page:after{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(0deg,rgba(0,0,0,.01) 0px,transparent 1px,transparent 2px,rgba(0,0,0,.01) 3px),repeating-linear-gradient(90deg,rgba(0,0,0,.01) 0px,transparent 1px,transparent 2px,rgba(0,0,0,.01) 3px);pointer-events:none;opacity:.3}.handbook-page{box-shadow:inset 0 0 30px #0000000d,0 2px 10px #0000001a}.handbook-navigation button:hover{box-shadow:0 8px 20px #00000026}@keyframes handbookPulse{0%,to{box-shadow:0 10px 30px #3b82f666}50%{box-shadow:0 15px 40px #3b82f699}}.handbook-trigger{animation:handbookPulse 3s ease-in-out infinite}@keyframes flipShadow{0%{box-shadow:0 10px 30px #0003}50%{box-shadow:10px 20px 50px #0000004d}to{box-shadow:0 10px 30px #0003}}.handbook-book-container.flipping{animation:flipShadow .8s ease-in-out}.handbook-page{scroll-behavior:smooth}.handbook-page::-webkit-scrollbar{width:8px}.handbook-page::-webkit-scrollbar-track{background:rgba(0,0,0,.05);border-radius:4px}.handbook-page::-webkit-scrollbar-thumb{background:rgba(0,0,0,.2);border-radius:4px}.handbook-page::-webkit-scrollbar-thumb:hover{background:rgba(0,0,0,.3)}@media (max-width: 768px){.handbook-book-container{perspective:1000px}.handbook-book-container:before{display:none}}@keyframes bookShimmer{0%{background-position:-1000px 0}to{background-position:1000px 0}}.handbook-loading{background:linear-gradient(90deg,rgba(255,255,255,0) 0%,rgba(255,255,255,.5) 50%,rgba(255,255,255,0) 100%);background-size:1000px 100%;animation:bookShimmer 2s infinite}.handbook-navigation button:focus-visible,.handbook-trigger:focus-visible{outline:3px solid #3b82f6;outline-offset:2px}@media (prefers-reduced-motion: reduce){.handbook-page.turning-right,.handbook-page.turning-left,.handbook-book-container.flipping,.handbook-trigger{animation:none}.handbook-book-container{perspective:none}*{transition-duration:.01ms!important;animation-duration:.01ms!important}}@media print{.handbook-navigation,.handbook-trigger{display:none}.handbook-book-container{box-shadow:none;border:1px solid #e5e7eb}.handbook-page{page-break-inside:avoid}}