.pdf-slide-card{position:relative;width:100%;max-width:600px;margin:2rem auto;border-radius:12px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,8%);cursor:pointer;transition:transform .3s cubic-bezier(.25,.8,.25,1),box-shadow .3s;background:#f8f9fa;border:1px solid rgba(0,0,0,5%)}.pdf-slide-card:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(0,0,0,.15)}.pdf-slide-preview{position:relative;width:100%;min-height:200px;background-size:cover;background-position:50%;background-color:#eee;display:flex;justify-content:center;align-items:center}.pdf-preview-canvas{width:100%;height:auto;display:block}.pdf-slide-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.2);display:flex;justify-content:center;align-items:center;opacity:0;transition:opacity .3s;z-index:2}.pdf-slide-preview:empty{padding-top:56.25%}.pdf-slide-card:hover .pdf-slide-overlay{opacity:1}.pdf-play-btn{width:64px;height:64px;background:rgba(255,255,255,.95);border-radius:50%;display:flex;justify-content:center;align-items:center;box-shadow:0 4px 15px rgba(0,0,0,.2);transform:scale(.9);transition:transform .3s cubic-bezier(.34,1.56,.64,1)}.pdf-slide-card:hover .pdf-play-btn{transform:scale(1)}.pdf-play-icon{width:0;height:0;border-style:solid;border-width:12px 0 12px 20px;border-color:transparent transparent transparent #333;margin-left:4px}.pdf-slide-info{padding:1rem 1.5rem;display:flex;justify-content:space-between;align-items:center;background:#fff}.pdf-slide-title{font-weight:600;font-size:1.1rem;color:#333;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.pdf-slide-badge{font-size:.8rem;padding:.25rem .75rem;background:#e7f5ff;color:#0077d8;border-radius:20px;font-weight:500}.pdf-modal-backdrop{position:fixed;top:0;left:0;width:100vw;height:100vh;background:rgba(0,0,0,.9);z-index:9999;display:flex;flex-direction:column;opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s;backdrop-filter:blur(5px)}.pdf-modal-backdrop.active{opacity:1;visibility:visible}.pdf-modal-toolbar{height:60px;display:flex;justify-content:space-between;align-items:center;padding:0 2rem;color:#fff;background:linear-gradient(to bottom,rgba(0,0,0,.8),transparent);z-index:10001}.pdf-modal-title{font-size:1.1rem;font-weight:500;opacity:.9}.pdf-modal-close{background:0 0;border:none;color:#fff;font-size:2rem;cursor:pointer;opacity:.7;transition:opacity .2s;line-height:1;padding:0 .5rem}.pdf-modal-close:hover{opacity:1}.pdf-canvas-container{flex:1;display:flex;justify-content:center;align-items:center;overflow:hidden;position:relative;width:100%}.pdf-canvas-wrapper{position:relative;max-width:90%;max-height:90%;box-shadow:0 0 50px rgba(0,0,0,.5)}#pdf-render-canvas{display:block;max-width:100%;max-height:85vh;object-fit:contain}.pdf-nav-btn{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.1);border:none;color:#fff;width:56px;height:56px;border-radius:50%;cursor:pointer;font-size:1.5rem;backdrop-filter:blur(4px);transition:background .2s,transform .2s;display:flex;justify-content:center;align-items:center;z-index:10002;outline:none}.pdf-nav-btn:hover{background:rgba(255,255,255,.25);transform:translateY(-50%)scale(1.1)}.pdf-nav-btn:disabled{opacity:.3;pointer-events:none}.pdf-prev-btn{left:2rem}.pdf-next-btn{right:2rem}.pdf-page-indicator{position:absolute;bottom:2rem;left:50%;transform:translateX(-50%);background:rgba(0,0,0,.6);color:#fff;padding:.5rem 1.2rem;border-radius:20px;font-size:.9rem;backdrop-filter:blur(4px);z-index:10002;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.pdf-loading-spinner{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:50px;height:50px;border:4px solid rgba(255,255,255,.3);border-top:4px solid #fff;border-radius:50%;animation:pdf-spin 1s linear infinite;z-index:10000;display:none}.pdf-loading-spinner.active{display:block}@keyframes pdf-spin{0%{transform:translate(-50%,-50%)rotate(0)}100%{transform:translate(-50%,-50%)rotate(360deg)}}.fade-in{animation:fadeIn .4s ease-out}@keyframes fadeIn{from{opacity:0;transform:scale(.98)}to{opacity:1;transform:scale(1)}}@media(prefers-color-scheme:dark){.pdf-slide-card{background:#2d2d2d;border-color:#404040}.pdf-slide-info{background:#333}.pdf-slide-title{color:#ddd}.pdf-slide-badge{background:#1a3b5c;color:#64b5f6}}@media(max-width:768px){.pdf-nav-btn{width:44px;height:44px;font-size:1.2rem;background:rgba(0,0,0,.4)}.pdf-prev-btn{left:1rem}.pdf-next-btn{right:1rem}.pdf-page-indicator{bottom:1.5rem}.pdf-modal-toolbar{padding:0 1rem}}.pdf-modal-actions{display:flex;align-items:center;gap:.75rem}.pdf-modal-fullscreen{background:0 0;border:none;color:#fff;font-size:1.2rem;cursor:pointer;opacity:.7;transition:opacity .2s;line-height:1;padding:.25rem .5rem}.pdf-modal-fullscreen:hover{opacity:1}