.missing-image{display:inline-block;padding:8px 12px;margin:4px;background-color:#f3f4f6;border:2px dashed #d1d5db;border-radius:8px;color:#6b7280;font-size:14px;text-align:center;min-width:120px}.dark .missing-image{background-color:#374151;border-color:#4b5563;color:#9ca3af}.sepia .missing-image{background-color:#fef3c7;border-color:#f59e0b;color:#92400e}.epub-content{line-height:1.6;font-family:Georgia,Times New Roman,serif;font-size:15px}.epub-content h1,.epub-content h2,.epub-content h3{margin-top:2rem;margin-bottom:1rem;color:inherit}.epub-content p{margin-bottom:1rem;text-align:justify}.epub-content blockquote{border-left:4px solid #8b5cf6;padding-left:1rem;margin:1rem 0;font-style:italic;opacity:.8}.highlighted-sentence{animation:highlight-pulse 2s ease-in-out infinite}@keyframes highlight-pulse{0%,to{background-color:rgba(139,92,246,.2);transform:scale(1)}50%{background-color:rgba(139,92,246,.3);transform:scale(1.02)}}@media (max-width:1023px){.epub-content{font-size:16px;line-height:1.7}}@media (min-width:1440px){.epub-content{font-size:16px}}:root{--safe-area-top:env(safe-area-inset-top);--safe-area-bottom:env(safe-area-inset-bottom);--safe-area-left:env(safe-area-inset-left);--safe-area-right:env(safe-area-inset-right)}@media (max-width:768px){.preset-button-compact{min-height:48px!important;min-width:48px!important;padding:8px 4px!important}.epub-content{font-size:17px;line-height:1.8;padding:0 4px}button{min-height:44px}.voice-slider{height:8px!important}.dialog-content{margin:16px;max-height:90vh;overflow-y:auto}.epub-reader-card{margin-bottom:calc(20px + var(--safe-area-bottom, 20px))!important;padding-bottom:calc(20px + var(--safe-area-bottom, 0px))!important}@supports (height:100dvh){.reading-container{min-height:100dvh;overflow-y:auto}}@supports (-webkit-touch-callout:none){.epub-reader-card{padding-bottom:calc(40px + var(--safe-area-bottom, 20px))!important}.navigation-controls{padding-bottom:calc(16px + var(--safe-area-bottom, 0px))!important}}}@media (max-width:768px) and (max-height:500px){.epub-reader-card{margin-bottom:calc(30px + var(--safe-area-bottom, 20px))!important;padding:16px!important}.navigation-controls{padding:12px 0!important;padding-bottom:calc(12px + var(--safe-area-bottom, 0px))!important}}