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.play-btn{width:56px;height:56px;background:var(--primary);color:#fff}.reader-controls .play-btn:hover:not(:disabled){background:var(--primary-dark);color:#fff}.page-number{font-size:.875rem;color:var(--gray-600);min-width:60px;text-align:center}.toc-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;justify-content:flex-end;z-index:100}.toc-panel{width:320px;max-width:90vw;background:#fff;height:100%;display:flex;flex-direction:column;animation:slideIn .2s ease-out}@keyframes slideIn{0%{transform:translate(100%)}to{transform:translate(0)}}.toc-header{display:flex;align-items:center;justify-content:space-between;padding:1rem;border-bottom:1px solid var(--gray-200)}.toc-header h2{font-size:1.125rem;margin:0}.toc-header button{background:transparent;border:none;cursor:pointer;color:var(--gray-500)}.toc-list{list-style:none;padding:0;margin:0;overflow-y:auto;flex:1}.toc-list li button{display:flex;align-items:center;gap:.75rem;width:100%;padding:.75rem 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var(--gray-300)}.end-card-actions .btn-secondary:hover{border-color:var(--primary);color:var(--primary)}@media (max-width: 768px){.reader-content.layout-split{flex-direction:column}.image-panel{max-height:40vh}.text-content{padding:1.5rem}.text-block{font-size:1.125rem}}*{box-sizing:border-box;margin:0;padding:0}:root{--primary: #6366f1;--primary-dark: #4f46e5;--success: #10b981;--error: #ef4444;--gray-50: #f9fafb;--gray-100: #f3f4f6;--gray-200: #e5e7eb;--gray-300: #d1d5db;--gray-400: #9ca3af;--gray-500: #6b7280;--gray-600: #4b5563;--gray-700: #374151;--gray-800: #1f2937;--gray-900: #111827}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif;background:var(--gray-50);color:var(--gray-900);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.app{min-height:100vh;display:flex;flex-direction:column}.nav{background:#fff;border-bottom:1px solid var(--gray-200);padding:0 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.2s}.btn-secondary:hover{border-color:var(--primary);color:var(--primary)}.success{color:var(--success)}.error{color:var(--error)}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:2px}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}