@keyframes flip-forward{0%{transform:rotateY(0deg)}50%{transform:rotateY(-90deg);box-shadow:-5px 5px 20px rgba(0,0,0,.3)}to{transform:rotateY(-180deg)}}@keyframes flip-backward{0%{transform:rotateY(-180deg)}50%{transform:rotateY(-90deg);box-shadow:-5px 5px 20px rgba(0,0,0,.3)}to{transform:rotateY(0deg)}}.animate-flip-forward{animation:flip-forward .6s ease-in-out}.animate-flip-backward{animation:flip-backward .6s ease-in-out}.backface-hidden{backface-visibility:hidden}.preserve-3d{transform-style:preserve-3d}@media (max-width:1024px){.flipbook-viewer{padding:1rem}}@media (max-width:768px){.flipbook-viewer{padding:.5rem}.flipbook-controls{bottom:1rem;padding:.5rem 1rem;gap:.25rem}.flipbook-controls button{padding:.25rem}.flipbook-controls span{font-size:.75rem;padding:0 .25rem}}@media (max-width:480px){.flipbook-viewer{padding:.25rem}.flipbook-book{max-width:95vw;max-height:60vh}.flipbook-controls{bottom:.5rem;padding:.25rem .5rem;border-radius:.5rem}.flipbook-page-indicators{bottom:3rem}}@media (hover:none) and (pointer:coarse){.flipbook-controls{opacity:1!important;pointer-events:auto!important}.flipbook-click-areas{display:none}.flipbook-viewer{touch-action:pan-x pan-y}}@media (prefers-contrast:high){.flipbook-viewer{border:2px solid}.flipbook-controls{background:#000;border:1px solid #fff}.flipbook-book{border:1px solid}}@media (prefers-reduced-motion:reduce){.animate-flip-backward,.animate-flip-forward{animation:none}.flipbook-viewer *,.flipbook-viewer :after,.flipbook-viewer :before{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}@media print{.flipbook-controls,.flipbook-page-indicators{display:none!important}.flipbook-viewer{background:#fff!important}}@media (prefers-color-scheme:dark){.flipbook-viewer{background-color:#1a1a1a}}.flipbook-controls button:focus-visible{outline:2px solid #fff;outline-offset:2px}.flipbook-page-indicator:focus-visible{outline:2px solid #fff;outline-offset:2px}.flipbook-page-loading{background:linear-gradient(90deg,#f0f0f0 25%,#e0e0e0 50%,#f0f0f0 75%);background-size:200% 100%;animation:loading-shimmer 1.5s infinite}@keyframes loading-shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.flipbook-viewer{transition:background-color .3s ease}.flipbook-controls{transition:opacity .3s ease,transform .3s ease}.flipbook-page{transition:transform .3s ease}@media (hover:hover) and (pointer:fine){.flipbook-click-area:hover:before{content:"";position:absolute;inset:0;background:hsla(0,0%,100%,.1);pointer-events:none}.flipbook-controls button:hover{transform:scale(1.05)}}