.page-viewer{background:var(--bg)}.page-viewer #app{max-width:900px;padding:var(--space-6) var(--space-5);text-align:center;margin:0 auto}.page-viewer .app-title{font-size:var(--fs-2xl);margin-bottom:var(--space-5)}.page-viewer #pdfInput{margin:0 auto var(--space-4);border-radius:var(--radius-md);background:var(--bg);box-shadow:var(--shadow-in);color:var(--text);cursor:pointer;font-size:var(--fs-md);max-width:400px;padding:12px;display:block}.page-viewer #pdfInput::file-selector-button{border-radius:var(--radius-sm);background:var(--bg);box-shadow:var(--shadow-out-sm);color:var(--text);font-weight:var(--fw-semibold);cursor:pointer;border:none;margin-right:12px;padding:8px 14px}.page-viewer #pdfInput::file-selector-button:active{box-shadow:var(--shadow-in)}.page-viewer #controls{justify-content:center;align-items:center;gap:var(--space-3);margin-bottom:var(--space-4);flex-wrap:wrap;display:flex}.page-viewer #pageInfo{font-family:var(--font-mono);font-size:var(--fs-md);color:var(--text-secondary);border-radius:var(--radius-md);background:var(--bg);box-shadow:var(--shadow-in);font-variant-numeric:tabular-nums;min-width:80px;padding:8px 14px}.page-viewer #viewer{margin-top:var(--space-4);justify-content:center;align-items:center;width:100%;display:flex}.page-viewer #pdfCanvas{border-radius:var(--radius-md);box-shadow:var(--shadow-out);background:#fff;max-width:100%;height:auto}.page-viewer .status{margin-top:var(--space-4);font-size:var(--fs-md)}:fullscreen .page-viewer #app{max-width:none;padding:0}:fullscreen .page-viewer h1{display:none!important}:fullscreen .page-viewer #pdfInput{display:none!important}:fullscreen .page-viewer #status{display:none!important}:fullscreen .page-viewer #controls{display:none!important}:fullscreen .page-viewer #viewer{background:#000;width:100vw;height:100vh;margin:0;padding:0}:fullscreen .page-viewer #pdfCanvas{box-shadow:none;background:#000;border-radius:0}.fs-controls{gap:var(--space-2);padding:var(--space-2);border-radius:var(--radius-pill);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);opacity:0;transition:opacity var(--duration-base) var(--ease-out);pointer-events:none;z-index:100;background:#1e2024e6;display:flex;position:fixed;bottom:24px;left:50%;transform:translate(-50%)}:fullscreen .fs-controls{opacity:1;pointer-events:auto}:fullscreen:hover .fs-controls{opacity:1;pointer-events:auto}.fs-controls .btn-icon{color:#fff;width:40px;height:40px;box-shadow:none;font-size:var(--fs-lg);background:0 0}.fs-controls .btn-icon:hover{background:#ffffff1a}.page-viewer .btn-present{border-radius:var(--radius-md);background:var(--accent);color:var(--accent-text);font-weight:var(--fw-semibold);font-size:var(--fs-md);box-shadow:0 4px 12px var(--accent-shadow), inset 0 1px 0 #fff3;transition:all var(--duration-fast) var(--ease-out);padding:14px 24px}.page-viewer .btn-present:active{transform:scale(.98);box-shadow:inset 4px 4px 8px #0003}.page-viewer .viewer-empty{justify-content:center;align-items:center;gap:var(--space-5);min-height:60vh;padding:var(--space-5) 0;flex-direction:column;display:flex}.page-viewer .viewer-empty .dropzone{width:100%;max-width:480px}.page-viewer.has-pdf .viewer-empty,.page-viewer .viewer-loaded{display:none}.page-viewer.has-pdf .viewer-loaded{display:block}.page-viewer .btn-change-pdf{border-radius:var(--radius-md);background:var(--bg);color:var(--text-secondary);font-size:var(--fs-sm);font-weight:var(--fw-semibold);box-shadow:var(--shadow-out-sm);transition:all var(--duration-fast) var(--ease-out);padding:8px 14px}.page-viewer .btn-change-pdf:active{box-shadow:var(--shadow-in);transform:scale(.98)}#viewer{position:relative}.blackout-overlay{z-index:50;cursor:pointer;background:#000;position:absolute;inset:0}.subtitle-wrap{left:50%;bottom:max(24px, env(safe-area-inset-bottom));align-items:center;gap:var(--space-2);z-index:999;pointer-events:none;flex-direction:column;width:min(92vw,900px);display:flex;position:fixed;transform:translate(-50%)}.subtitle-caption{border-radius:var(--radius-md);color:#f5f7fa;text-align:center;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);word-break:break-word;background:#0f1219c7;max-width:100%;padding:10px 22px;font-size:clamp(1.1rem,2.2vw,1.6rem);line-height:1.45;transition:opacity .25s;box-shadow:0 4px 18px #00000059}.subtitle-caption[hidden]{display:none}.subtitle-caption.interim{opacity:.75;font-style:italic}.subtitle-feedback{font-size:var(--fs-sm);letter-spacing:.02em;color:#fff;background:#2e9e5beb;border-radius:999px;padding:6px 16px;font-weight:700;box-shadow:0 3px 12px #0000004d}.subtitle-feedback[hidden]{display:none}.subtitle-feedback.pop{animation:.3s pe-toast-pop}@keyframes pe-toast-pop{0%{opacity:0;transform:translateY(8px)scale(.92)}to{opacity:1;transform:translateY(0)scale(1)}}