.ep-pdf-gallery{--ep-gallery-columns:var(--ep-gallery-columns-desktop,3);--ep-gallery-columns-tablet:2;--ep-gallery-columns-mobile:1;--ep-gallery-gap:20px;--ep-gallery-radius:8px;width:100%}.ep-pdf-gallery[data-layout=grid] .ep-pdf-gallery__grid{display:grid;grid-template-columns:repeat(var(--ep-gallery-columns),1fr);gap:var(--ep-gallery-gap)}.ep-pdf-gallery[data-layout=masonry] .ep-pdf-gallery__grid{display:block;column-count:var(--ep-gallery-columns);column-gap:var(--ep-gallery-gap)}.ep-pdf-gallery[data-layout=masonry] .ep-pdf-gallery__item{display:inline-block;width:100%;break-inside:avoid;margin-bottom:var(--ep-gallery-gap)}.ep-pdf-gallery[data-layout=masonry] .ep-pdf-gallery__thumbnail-wrap{aspect-ratio:auto !important}.ep-pdf-gallery[data-layout=masonry] .ep-pdf-gallery__thumbnail-wrap img{width:100%;height:auto;object-fit:contain}.ep-pdf-gallery__item{cursor:pointer;position:relative;overflow:hidden;border-radius:var(--ep-gallery-radius);background:#f5f5f5;transition:transform .2s ease,box-shadow .2s ease}.ep-pdf-gallery__item:hover{transform:translateY(-2px);box-shadow:0 4px 16px rgba(0,0,0,.15)}.ep-pdf-gallery__thumbnail-wrap{position:relative;width:100%;overflow:hidden;background:#e8e8e8}.ep-pdf-gallery__thumbnail-wrap[data-ratio="1:1"]{aspect-ratio:1/1}.ep-pdf-gallery__thumbnail-wrap[data-ratio="4:3"]{aspect-ratio:4/3}.ep-pdf-gallery__thumbnail-wrap[data-ratio="3:4"]{aspect-ratio:3/4}.ep-pdf-gallery__thumbnail-wrap[data-ratio="16:9"]{aspect-ratio:16/9}.ep-pdf-gallery__canvas,.ep-pdf-gallery__thumbnail-wrap img{width:100%;height:100%;object-fit:contain;display:block}.ep-pdf-gallery__overlay{position:absolute;inset:0;background:rgba(0,0,0,0);display:flex;align-items:center;justify-content:center;transition:background .2s ease;pointer-events:none}.ep-pdf-gallery__item:hover .ep-pdf-gallery__overlay{background:var(--ep-overlay-color,rgba(0,0,0,.35))}.ep-pdf-gallery__view-icon{width:44px;height:44px;fill:#fff;background-color:rgba(0,0,0,.6);border-radius:50%;padding:10px;box-sizing:content-box;opacity:0;transform:scale(.8);transition:opacity .2s ease,transform .2s ease}.ep-pdf-gallery__item:hover .ep-pdf-gallery__view-icon{opacity:1;transform:scale(1)}.ep-pdf-gallery__item--always-show .ep-pdf-gallery__overlay{background:var(--ep-overlay-color,rgba(0,0,0,.35))}.ep-pdf-gallery__item--always-show .ep-pdf-gallery__view-icon{opacity:1;transform:scale(1)}.ep-play-shape-circle .ep-pdf-gallery__view-icon{border-radius:50%}.ep-play-shape-rounded-square .ep-pdf-gallery__view-icon{border-radius:12px}.ep-play-shape-none .ep-pdf-gallery__view-icon{border-radius:0}.ep-pdf-gallery__placeholder{width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;background:linear-gradient(135deg,#f5f5f5 0%,#e8e8e8 100%);color:#666;padding:12px}.ep-pdf-gallery__placeholder svg{width:40px;height:48px;flex-shrink:0}.ep-pdf-gallery__placeholder-name{font-size:11px;font-weight:500;text-align:center;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%;opacity:.7}.ep-pdf-gallery__popup{position:fixed;inset:0;z-index:100000;display:none}.ep-pdf-gallery__popup.ep-pdf-gallery__popup--open{display:flex}.ep-pdf-gallery__popup-overlay{position:absolute;inset:0;background:rgba(0,0,0,.92);display:flex;align-items:center;justify-content:center;animation:epGalleryFadeIn .25s ease-out}@keyframes epGalleryFadeIn{from{opacity:0}to{opacity:1}}.ep-pdf-gallery__popup-close{position:absolute;top:15px;right:15px;background:rgba(255,255,255,.12);color:#fff;border:none;border-radius:50%;width:44px;height:44px;font-size:24px;cursor:pointer;z-index:3;display:flex;align-items:center;justify-content:center;transition:background .2s;line-height:1;padding:0}.ep-pdf-gallery__popup-close:hover{background:rgba(255,255,255,.25)}.ep-pdf-gallery__popup-prev,.ep-pdf-gallery__popup-next{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.1);color:#fff;border:none;padding:14px 10px;cursor:pointer;z-index:3;border-radius:6px;transition:background .2s,opacity .2s}.ep-pdf-gallery__popup-prev:hover,.ep-pdf-gallery__popup-next:hover{background:rgba(255,255,255,.22)}.ep-pdf-gallery__popup-prev{left:12px}.ep-pdf-gallery__popup-next{right:12px}.ep-pdf-gallery__popup-prev svg,.ep-pdf-gallery__popup-next svg{width:24px;height:24px;fill:#fff}.ep-pdf-gallery__popup-prev.ep-hidden,.ep-pdf-gallery__popup-next.ep-hidden{opacity:.3;pointer-events:none}.ep-pdf-gallery__popup-counter{position:absolute;top:20px;left:50%;transform:translateX(-50%);color:rgba(255,255,255,.8);font-size:14px;font-weight:500;z-index:3;user-select:none}.ep-pdf-gallery__popup-viewer{width:90vw;height:90vh;max-width:1400px;position:relative}.ep-pdf-gallery__popup-iframe{width:100%;height:100%;border:none;border-radius:6px;background:#fff}.ep-pdf-gallery__canvas[data-loading=true]{background:linear-gradient(90deg,#f0f0f0 25%,#e0e0e0 50%,#f0f0f0 75%);background-size:200% 100%;animation:epGalleryShimmer 1.5s infinite}@keyframes epGalleryShimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}@media (max-width:1024px){.ep-pdf-gallery{--ep-gallery-columns:var(--ep-gallery-columns-tablet,2)}.ep-pdf-gallery__popup-viewer{width:95vw;height:90vh}}@media (max-width:767px){.ep-pdf-gallery{--ep-gallery-columns:var(--ep-gallery-columns-mobile,1)}.ep-pdf-gallery__popup-prev,.ep-pdf-gallery__popup-next{opacity:1;top:auto;bottom:12px;transform:none;padding:10px 14px}.ep-pdf-gallery__popup-prev{left:16px}.ep-pdf-gallery__popup-next{right:16px}.ep-pdf-gallery__popup-counter{top:auto;bottom:18px}.ep-pdf-gallery__popup-viewer{width:100vw;height:calc(100vh - 60px);max-width:none;border-radius:0;margin-top:0}.ep-pdf-gallery__popup-close{top:8px;right:8px}.ep-pdf-gallery__popup-iframe{border-radius:0}}.ep-pdf-gallery--editor .ep-pdf-gallery__item{cursor:default}.ep-pdf-gallery--editor .ep-pdf-gallery__item:hover{transform:translateY(-1px)}.ep-pdf-gallery-editor__item-actions{position:absolute;top:6px;right:6px;display:flex;gap:4px;opacity:0;transition:opacity .15s;z-index:10}.ep-pdf-gallery__item:hover .ep-pdf-gallery-editor__item-actions{opacity:1}.ep-pdf-gallery-editor__item-btn{background:rgba(0,0,0,.65);color:#fff;border:none;border-radius:4px;width:28px;height:28px;cursor:pointer;display:flex;align-items:center;justify-content:center;padding:0;font-size:14px;line-height:1;transition:background .15s}.ep-pdf-gallery-editor__item-btn:hover{background:rgba(0,0,0,.85)}.ep-pdf-gallery-editor__add-btn{display:flex;align-items:center;justify-content:center;flex-direction:column;border:2px dashed #ccc;border-radius:var(--ep-gallery-radius,8px);background:0 0;cursor:pointer;transition:border-color .2s,background .2s;color:#999;font-size:13px;gap:6px;min-height:120px;aspect-ratio:4/3}.ep-pdf-gallery-editor__add-btn:hover{border-color:#5b4e96;background:rgba(91,78,150,.05);color:#5b4e96}.ep-pdf-gallery-editor__add-btn svg{width:20px;height:20px;fill:currentColor}.ep-pdf-gallery__book-title{display:none}