.talk-viewer{display:flex;flex-direction:column;gap:2rem}.talk-header{display:flex;flex-direction:column;gap:1rem}.back-link{display:inline-flex;align-items:center;gap:.4rem;font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:1px;color:var(--text-muted);text-decoration:none;transition:color .2s ease,transform .2s ease}.back-link:hover{color:var(--primary-color);transform:translate(-4px)}.back-link .material-symbols-outlined{font-size:16px}.talk-meta{border-left:3px solid var(--primary-color);padding-left:1rem}.talk-title{font-size:22px;font-weight:800;letter-spacing:1px;text-transform:uppercase;color:var(--primary-color);margin-bottom:.35rem}.talk-date{font-size:12px;color:var(--text-muted);font-style:italic;margin-bottom:.5rem}.talk-desc{font-size:14px;color:var(--text-muted);line-height:1.6}.pdf-slideshow{display:flex;flex-direction:column;align-items:center;gap:1.25rem;max-width:100%}.pdf-canvas-container{position:relative;width:100%;max-width:100%;border-radius:10px;overflow:hidden;box-shadow:0 8px 30px #0000001f;background:transparent;min-height:148px;display:flex;align-items:center;justify-content:center}#pdf-canvas{display:block;width:100%;height:auto;border-radius:10px}.pdf-loading{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem;background:#1a1a1ae6;color:#fff;font-size:14px}.pdf-spinner{width:36px;height:36px;border:3px solid rgba(255,255,255,.2);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.pdf-controls{display:flex;align-items:center;justify-content:center;gap:1.5rem;flex-wrap:wrap;width:100%}.pdf-btn{display:inline-flex;align-items:center;gap:.4rem;background:var(--primary-color);color:#fff;border:none;border-radius:8px;padding:10px 20px;font-size:13px;font-weight:600;font-family:Inter,sans-serif;letter-spacing:.5px;cursor:pointer;transition:opacity .2s ease,transform .2s ease,box-shadow .2s ease;box-shadow:0 4px 12px #00000026}.pdf-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 18px #0003}.pdf-btn:disabled{opacity:.35;cursor:not-allowed;transform:none;box-shadow:none}.pdf-btn .material-symbols-outlined{font-size:16px}.pdf-page-info{font-size:15px;font-weight:600;min-width:80px;text-align:center;color:var(--primary-color)}.page-sep{margin:0 .3rem;color:var(--text-muted)}.keyboard-hint{font-size:12px;color:var(--text-muted);text-align:center}@media(max-width:600px){.pdf-controls{gap:.8rem}.pdf-btn{padding:8px 12px;font-size:12px}}.pdf-slideshow.fullscreen{background:#1a1a1a;padding:2rem;height:100vh;width:100vw;justify-content:center;box-sizing:border-box}.pdf-slideshow.fullscreen .pdf-canvas-container{flex:1;min-height:0;box-shadow:none}.pdf-slideshow.fullscreen #pdf-canvas{width:auto;height:auto;max-height:100%;max-width:100%}@media(orientation:landscape){.pdf-slideshow.fullscreen{padding:0;position:relative}.pdf-slideshow.fullscreen .pdf-canvas-container{width:100vw;height:100vh}.pdf-slideshow.fullscreen .pdf-controls{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;background:transparent}.pdf-slideshow.fullscreen .pdf-controls>*{position:absolute;pointer-events:auto}.pdf-slideshow.fullscreen #btn-prev,.pdf-slideshow.fullscreen #btn-next{top:50%;transform:translateY(-50%);width:56px;height:56px;padding:0;display:flex;justify-content:center;align-items:center;background:#1e1e1ea6;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);color:#fff;border:1px solid rgba(255,255,255,.1);border-radius:12px;font-size:0}.pdf-slideshow.fullscreen #btn-prev{left:30px}.pdf-slideshow.fullscreen #btn-prev .material-symbols-outlined{margin-left:8px;font-size:28px}.pdf-slideshow.fullscreen #btn-next{right:30px}.pdf-slideshow.fullscreen #btn-next .material-symbols-outlined{font-size:28px}.pdf-slideshow.fullscreen .fullscreen-btn{top:30px;right:30px;width:48px;height:48px;padding:0;display:flex;justify-content:center;align-items:center;background:#1e1e1ea6;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);color:#fff;border:1px solid rgba(255,255,255,.1);border-radius:8px;margin:0!important}.pdf-slideshow.fullscreen .fullscreen-btn .material-symbols-outlined{font-size:24px}.pdf-slideshow.fullscreen .pdf-page-info{bottom:30px;left:50%;transform:translate(-50%);background:#1e1e1ea6;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);color:#fff;border:1px solid rgba(255,255,255,.1);padding:12px 48px;border-radius:4px;font-weight:700;letter-spacing:.5px}.pdf-slideshow.fullscreen .keyboard-hint{display:none}}