:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:#333;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;font-weight:400;line-height:1.5}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}body{min-height:100vh;margin:0}#root{width:100%;min-height:100vh}:root{--primary-color:#4a89dc;--primary-hover:#3b78cc;--primary-light:#6a9bf1;--secondary-color:#f5f7fa;--accent-color:#a0c4ff;--danger-color:#e74c3c;--success-color:#27ae60;--text-primary:#2c3e50;--text-secondary:#7f8c8d;--text-muted:#95a5a6;--bg-light:#fff;--bg-cream:#f5f7fa;--bg-dark:#1a202c;--border-color:#e2e8f0;--border-light:#edf2f7;--shadow-sm:0 1px 3px #0000001a;--shadow-md:0 4px 6px #0000001a;--shadow-lg:0 10px 15px #0000001a;--shadow-xl:0 20px 25px #0000001a;--transition-fast:.2s ease;--transition-normal:.3s ease;--transition-slow:.4s ease;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--sidebar-width:240px;--sidebar-collapsed-width:60px;--control-bg:#f5f7faf2;--control-text:#2c3e50;--control-border:rgba(var(--control-color-rgb,74, 137, 220), .2);--control-hover:rgba(var(--control-color-rgb,74, 137, 220), .1)}[data-theme=dark]{--control-bg:#1a202cf2;--control-text:#e2e8f0;--control-border:rgba(var(--control-color-rgb,74, 137, 220), .2);--control-hover:rgba(var(--control-color-rgb,74, 137, 220), .1)}*{box-sizing:border-box;margin:0;padding:0}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--bg-cream);color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;font-size:14px;line-height:1.5}.app{background:var(--bg-cream);min-height:100vh;position:relative;overflow:hidden}.reader-auth-page{background:var(--bg-cream);justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex}.reader-auth-panel{border:1px solid var(--border-color);border-radius:var(--radius-md);background:var(--bg-light);width:min(100%,420px);box-shadow:var(--shadow-lg);padding:24px}.reader-auth-kicker{color:var(--text-muted);text-transform:uppercase;margin-bottom:8px;font-size:12px;font-weight:700}.reader-auth-panel h1{margin-bottom:20px;font-size:24px;display:block}.reader-auth-form{gap:14px;display:grid}.reader-auth-form label{color:var(--text-primary);gap:7px;font-weight:600;display:grid}.reader-auth-form input{border:1px solid var(--border-color);border-radius:var(--radius-sm);background:var(--bg-cream);width:100%;min-height:44px;color:var(--text-primary);padding:0 12px}.reader-auth-message{border-radius:var(--radius-sm);color:var(--danger-color);background:#e74c3c14;border:1px solid #e74c3c47;padding:10px 12px}.reader-auth-submit,.reader-auth-switch,.reader-auth-bar button{border-radius:var(--radius-sm);min-height:40px;font-weight:700}.reader-auth-submit{border:1px solid var(--primary-color);background:var(--primary-color);color:#fff}.reader-auth-switch{border:1px solid var(--border-color);background:var(--bg-light);width:100%;color:var(--primary-color);margin-top:12px}.reader-auth-bar{z-index:300;border-bottom:1px solid var(--border-color);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#fffffff0;justify-content:flex-end;align-items:center;gap:8px;min-height:44px;padding:6px 16px;display:flex;position:sticky;top:0}.reader-auth-bar span{text-overflow:ellipsis;white-space:nowrap;max-width:160px;color:var(--text-primary);font-weight:700;overflow:hidden}.reader-auth-bar button{border:1px solid var(--border-color);background:var(--bg-light);color:var(--text-primary);padding:0 12px}.bookshelf-layout{background:var(--bg-light);min-height:100vh;box-shadow:var(--shadow-lg);display:flex}.sidebar{background:var(--bg-light);border-right:1px solid var(--border-color);transition:var(--transition-normal);z-index:100;flex-direction:column;display:flex;position:relative}.sidebar.expanded{width:var(--sidebar-width)}.sidebar.collapsed{width:var(--sidebar-collapsed-width)}.sidebar-header{border-bottom:1px solid var(--border-light);justify-content:space-between;align-items:center;padding:16px;display:flex}.sidebar-title{color:var(--text-primary);align-items:center;gap:12px;margin:0;font-size:18px;font-weight:600;display:flex}.logo{font-size:24px;line-height:1}.title-text{transition:var(--transition-fast)}.sidebar-toggle{background:var(--bg-cream);border-radius:var(--radius-sm);cursor:pointer;width:32px;height:32px;color:var(--text-secondary);transition:var(--transition-fast);border:none;justify-content:center;align-items:center;font-size:16px;display:flex}.sidebar-toggle:hover{background:var(--primary-light);color:var(--primary-color)}.sidebar-actions{border-bottom:1px solid var(--border-light);padding:12px 16px}.sidebar-btn{border:1px solid var(--primary-color);background:var(--bg-light);width:100%;color:var(--primary-color);border-radius:var(--radius-md);cursor:pointer;transition:var(--transition-fast);align-items:center;gap:12px;margin-bottom:8px;padding:10px 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var(--border-light);padding-top:12px;font-size:12px}.main-content{transition:var(--transition-normal);flex-direction:column;flex:1;display:flex;overflow:hidden}.main-content.sidebar-expanded{margin-left:0}.main-content.sidebar-collapsed{margin-left:calc(var(--sidebar-width) - var(--sidebar-collapsed-width))}.main-header{background:var(--bg-light);border-bottom:1px solid var(--border-light);justify-content:space-between;align-items:center;gap:16px;padding:16px 24px;display:flex}.header-search{flex:1;max-width:400px}.search-input{border:1px solid var(--border-color);border-radius:var(--radius-md);width:100%;transition:var(--transition-fast);background:var(--bg-cream);outline:none;padding:10px 16px;font-size:14px}.search-input:focus{border-color:var(--primary-color);background:var(--bg-light);box-shadow:0 0 0 3px #4a89dc1a}.header-controls{align-items:center;gap:12px;display:flex}.toggle-view-btn{border:1px solid 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var(--border-color);border-radius:var(--radius-md);cursor:pointer;transition:var(--transition-fast);overflow:hidden}.book-item:hover{box-shadow:var(--shadow-md);border-color:var(--primary-light);transform:translateY(-2px)}.book-item.selected{border-color:var(--primary-color);background:#4a89dc05;box-shadow:0 0 0 3px #4a89dc1a}.book-item.grid-view{text-align:center;flex-direction:column;align-items:center;min-height:280px;padding:16px;display:flex}.book-cover{background:linear-gradient(135deg, var(--primary-color), var(--primary-light));border-radius:var(--radius-sm);width:120px;height:160px;box-shadow:var(--shadow-sm);justify-content:center;align-items:center;margin-bottom:12px;display:flex;position:relative}.book-icon{color:#fff;filter:drop-shadow(0 2px 4px #0003);font-size:32px}.book-info{text-align:center;width:100%}.book-title{color:var(--text-primary);-webkit-line-clamp:2;text-overflow:ellipsis;-webkit-box-orient:vertical;margin-bottom:8px;font-size:14px;font-weight:600;line-height:1.3;display:-webkit-box;overflow:hidden}.book-meta{color:var(--text-muted);flex-direction:column;gap:4px;font-size:12px;display:flex}.book-item.list-view{align-items:center;gap:16px;min-height:80px;padding:16px;display:flex}.book-icon-small{color:var(--primary-color);flex-shrink:0;font-size:24px}.book-details{flex:1;min-width:0}.book-stats{color:var(--text-muted);gap:16px;margin-top:4px;font-size:12px;display:flex}.selected-indicator{background:var(--primary-color);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:20px;height:20px;font-size:12px;font-weight:700;display:flex}.empty-shelf{text-align:center;background:var(--bg-cream);border:2px dashed var(--border-color);border-radius:var(--radius-lg);flex-direction:column;flex:1;justify-content:center;align-items:center;margin:24px;padding:48px 24px;display:flex}.empty-icon{color:var(--text-muted);opacity:.6;margin-bottom:24px;font-size:64px}.empty-shelf h2{color:var(--text-primary);margin-bottom:12px;font-size:18px;font-weight:600}.empty-shelf p{color:var(--text-secondary);max-width:300px;margin-bottom:32px;font-size:14px;line-height:1.5}.empty-shelf button{background:var(--primary-color);color:#fff;border-radius:var(--radius-md);cursor:pointer;transition:var(--transition-fast);box-shadow:var(--shadow-sm);border:none;padding:12px 24px;font-size:14px;font-weight:500}.empty-shelf button:hover{background:var(--primary-hover);box-shadow:var(--shadow-md);transform:translateY(-2px)}.modal-overlay{z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#00000080;justify-content:center;align-items:center;animation:.2s fadeIn;display:flex;position:fixed;inset:0}@keyframes fadeIn{0%{opacity:0;transform:translate(-50%,-50%)scale(.9)}to{opacity:1;transform:translate(-50%,-50%)scale(1)}}.modal-content{background:var(--bg-light);border-radius:var(--radius-lg);width:90%;max-width:400px;box-shadow:var(--shadow-xl);border:1px solid var(--border-color);padding:24px;animation:.3s modalSlideIn}@keyframes modalSlideIn{0%{opacity:0;transform:translateY(-20px)scale(.95)}to{opacity:1;transform:translateY(0)scale(1)}}.modal-content h3{color:var(--text-primary);margin-bottom:16px;font-size:16px;font-weight:600}.modal-content p{color:var(--text-secondary);margin-bottom:12px;font-size:14px;line-height:1.5}.modal-content .warning{color:var(--danger-color);font-size:14px;font-weight:500}.modal-actions{justify-content:flex-end;gap:12px;margin-top:24px;display:flex}.modal-actions button{border:1px solid var(--border-color);border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition-fast);padding:8px 16px;font-size:14px;font-weight:500}.cancel-btn{background:var(--bg-light);color:var(--text-secondary)}.cancel-btn:hover{background:var(--bg-cream);border-color:var(--text-muted)}.confirm-btn{background:var(--danger-color);color:#fff;border-color:var(--danger-color)}@media (width<=768px){.sidebar.expanded{width:200px}.main-header{flex-direction:column;align-items:stretch;gap:12px;padding:12px 16px}.header-search{max-width:none}.header-controls{justify-content:space-between}.books-container.grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:16px}.book-cover{width:100px;height:140px}.book-icon{font-size:24px}.main-content.sidebar-collapsed{margin-left:0}.sidebar.collapsed{z-index:1000;height:100vh;box-shadow:var(--shadow-lg);position:fixed;top:0;left:0}.sidebar-switch{display:none}.toggle-view-btn{padding:6px 12px;font-size:12px}.sort-select{padding:6px 10px;font-size:12px}.search-input{padding:8px 12px;font-size:12px}.book-item.grid-view{min-height:240px;padding:12px}.book-item.list-view{gap:12px;padding:12px}.book-title{font-size:12px}.book-stats{gap:12px;font-size:11px}.empty-shelf{margin:16px;padding:32px 16px}.empty-icon{font-size:48px}.empty-shelf h2{font-size:16px}.empty-shelf p{font-size:12px}.empty-shelf button{padding:10px 20px;font-size:12px}.modal-content{max-width:320px;padding:20px}.modal-content h3{font-size:14px}.modal-content p{font-size:12px}.modal-actions button{padding:6px 12px;font-size:12px}}.reader-layout{transition:var(--transition-normal);background:var(--bg-cream);flex-direction:column;display:flex;position:fixed;inset:0}.reader-scroll-area{-webkit-overflow-scrolling:touch;transition:var(--transition-normal);flex:1;overflow:hidden auto}.reader-scroll-area::-webkit-scrollbar{width:10px}.reader-scroll-area::-webkit-scrollbar-track{background:#8b45130d}.reader-scroll-area::-webkit-scrollbar-thumb{background:linear-gradient(180deg, var(--secondary-color), 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100%);z-index:100;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--control-border);color:var(--control-text);justify-content:space-between;align-items:center;padding:24px 40px;animation:.4s cubic-bezier(.4,0,.2,1) slideDown;display:flex;position:fixed;top:0;left:0;right:0}@keyframes slideDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.back-btn{border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);cursor:pointer;transition:var(--transition-fast);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#fff9;padding:12px 24px;font-family:Crimson Text,serif;font-size:1rem;font-weight:600}.back-btn:hover{box-shadow:var(--shadow-md);background:#ffffffe6;transform:translateY(-2px)}.reader-header .book-title{text-align:center;text-overflow:ellipsis;white-space:nowrap;color:var(--text-primary);border:none;flex:1;margin:0;padding:0;font-family:Playfair Display,Georgia,serif;font-size:1.3rem;font-weight:700;overflow:hidden}.reader-header .header-actions{gap:12px;display:flex}.reader-header .header-actions button{border:1px solid var(--border-color);border-radius:var(--radius-md);width:48px;height:48px;color:var(--text-primary);cursor:pointer;transition:var(--transition-fast);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#fff9;justify-content:center;align-items:center;font-size:1.4rem;display:flex}.reader-header .header-actions button:hover{box-shadow:var(--shadow-md);background:#ffffffe6;transform:scale(1.08)}.reader-footer{background:linear-gradient(to top, var(--control-bg) 0%, rgba(var(--control-bg-rgb,245, 247, 250), .95) 100%);z-index:100;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-top:1px solid var(--control-border);color:var(--control-text);justify-content:space-between;align-items:center;gap:20px;padding:24px 40px;animation:.4s cubic-bezier(.4,0,.2,1) 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var(--control-border);text-align:center;white-space:nowrap;min-width:120px;padding:10px 20px;font-size:1.1rem;font-weight:600}.lock-indicator{color:#fff;border-radius:var(--radius-full);cursor:pointer;z-index:200;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:var(--shadow-lg);background:#2c2416e6;border:1px solid #ffffff1a;padding:16px 32px;font-size:1rem;animation:2.5s ease-in-out infinite gentlePulse;position:fixed;bottom:100px;left:50%;transform:translate(-50%)}.chapter-scroll-indicator{z-index:190;animation:.3s fadeIn;position:fixed;top:50%;left:50%;transform:translate(-50%,-50%)}.chapter-scroll-content{border-radius:var(--radius-lg);text-align:center;box-shadow:var(--shadow-xl);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--border-color);background:#fffffff2;min-width:280px;padding:32px 48px}.chapter-scroll-content h3{color:var(--text-primary);margin-bottom:8px;font-size:1.5rem;font-weight:700;line-height:1.3}.chapter-scroll-content p{color:var(--text-secondary);margin:0;font-size:1rem;font-weight:500}.chapter-progress-indicator{z-index:180;opacity:.8;transition:all .3s;position:fixed;bottom:20px;right:20px}.chapter-progress-indicator.with-controls{bottom:120px}.chapter-progress-indicator:hover{opacity:1}.progress-content{color:#fff;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#0000004d;border:1px solid #ffffff1a;border-radius:50px;align-items:center;gap:16px;padding:12px 20px;font-size:12px;font-weight:500;transition:all .3s;display:flex;box-shadow:0 4px 16px #0000001a}.chapter-progress-indicator:hover .progress-content{background:#000000b3;transform:translateY(-2px);box-shadow:0 6px 20px #0003}.chapter-info{font-size:12px}.progress-percentage{background:#ffffff1a;border-radius:20px;padding:4px 12px;font-size:12px;font-weight:600;transition:all .3s}.chapter-progress-indicator:hover .progress-percentage{background:#ffffff4d}.next-chapter-indicator{text-align:center;margin-top:60px;margin-bottom:40px;animation:.5s fadeIn}.next-chapter-content{color:#fff;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#0000004d;border:1px solid #ffffff1a;border-radius:50px;padding:16px 32px;font-size:14px;transition:all .3s;display:inline-block;box-shadow:0 4px 16px #0000001a}.next-chapter-indicator:hover .next-chapter-content{background:#000000b3;transform:translateY(-2px);box-shadow:0 6px 20px #0003}.load-more-indicator{text-align:center;margin-top:40px;margin-bottom:40px;animation:.5s fadeIn}.load-more-content{color:#fff;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#0000004d;border:1px solid #ffffff1a;border-radius:50px;padding:16px 32px;font-size:14px;transition:all .3s;display:inline-block;box-shadow:0 4px 16px #0000001a}.load-more-indicator:hover .load-more-content{background:#000000b3;transform:translateY(-2px);box-shadow:0 6px 20px #0003}.sidebar-overlay{z-index:150;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#2c241699;animation:.25s fadeIn;position:fixed;inset:0}.sidebar-container{background:var(--control-bg);width:420px;max-width:90vw;height:100vh;box-shadow:var(--shadow-xl);border-left:1px solid var(--control-border);animation:.35s cubic-bezier(.4,0,.2,1) slideInRight;position:fixed;top:0;right:0;overflow-y:auto}@keyframes slideInRight{0%{transform:translate(100%)}to{transform:translate(0)}}.chapter-list,.settings-panel{background:var(--control-bg);height:100%}.chapter-list-header,.settings-header{border-bottom:2px solid var(--control-border);background:var(--control-bg);z-index:10;color:var(--control-text);justify-content:space-between;align-items:center;padding:28px 32px;display:flex;position:sticky;top:0}.chapter-list-header h2,.settings-header h2{color:var(--text-primary);margin:0;font-family:Playfair Display,Georgia,serif;font-size:1.7rem;font-weight:700}.close-btn{border-radius:var(--radius-md);background:var(--bg-light);width:44px;height:44px;color:var(--text-primary);cursor:pointer;transition:var(--transition-fast);border:none;justify-content:center;align-items:center;font-size:1.6rem;display:flex}.close-btn:hover{background:var(--bg-cream);box-shadow:var(--shadow-sm);transform:scale(1.1)}.chapter-list-content{padding:24px}.chapter-item{border-radius:var(--radius-md);cursor:pointer;transition:var(--transition-fast);background:#fff;border:2px solid #0000;align-items:center;gap:16px;margin-bottom:12px;padding:20px;display:flex}.chapter-item:before{content:"";background:linear-gradient(180deg, var(--primary-color), var(--accent-color));width:4px;transition:var(--transition-fast);transform-origin:50%;border-radius:0 2px 2px 0;position:absolute;top:0;bottom:0;left:0;transform:scaleY(0)}.chapter-item:hover{background:var(--bg-light);box-shadow:var(--shadow-md);border-color:#8b45131a;transform:translate(8px)}.chapter-item:hover:before{transform:scaleY(1)}.chapter-item.current{border-left:4px solid var(--primary-color);background:#8b45130d;box-shadow:0 0 0 3px #8b451314}.chapter-number{background:var(--bg-light);border-radius:var(--radius-sm);width:40px;height:40px;color:var(--text-secondary);transition:var(--transition-fast);border:1px solid var(--border-color);flex-shrink:0;justify-content:center;align-items:center;font-weight:600;display:flex}.chapter-item:hover .chapter-number{background:var(--primary-color);color:#fff;box-shadow:var(--shadow-sm);border-color:var(--primary-color);transform:scale(1.1)}.chapter-item.current .chapter-number{background:var(--primary-color);color:#fff;border-color:var(--primary-color)}.chapter-item .chapter-title{color:var(--text-primary);text-align:left;border:none;flex:1;margin:0;padding:0;font-family:Crimson Text,serif;font-size:1.05rem;font-weight:500}.current-indicator{color:var(--primary-color);transition:var(--transition-fast);font-size:1rem;font-weight:700}.chapter-item:hover .current-indicator{transform:translate(4px)}.settings-content{padding:32px}.settings-section{margin-bottom:40px;position:relative}.settings-section:before{content:"";background:var(--border-color);height:1px;position:absolute;top:-20px;left:0;right:0}.settings-section:first-child:before{display:none}.settings-section h3{color:var(--text-primary);border-bottom:2px solid var(--primary-color);margin-bottom:20px;padding-bottom:12px;font-family:Playfair Display,Georgia,serif;font-size:1.2rem;font-weight:700;display:inline-block}.setting-item{margin-bottom:24px}.setting-item label{color:var(--text-secondary);align-items:center;gap:8px;margin-bottom:12px;font-size:1rem;font-weight:600;display:flex}.color-input-wrapper{align-items:center;gap:12px;display:flex}.color-input-wrapper input[type=color]{border:2px solid var(--border-color);border-radius:var(--radius-md);cursor:pointer;background:#fff;width:48px;height:48px;padding:4px}.color-input-wrapper input[type=color]:hover{border-color:var(--primary-color)}.color-input-wrapper .color-text-input{border:2px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);background:#fff;flex:1;padding:12px 16px;font-family:Courier New,monospace;font-size:.9rem}.color-input-wrapper .color-text-input:focus{border-color:var(--primary-color);outline:none;box-shadow:0 0 0 3px #4a89dc1a}.setting-item label:before{content:"";background:var(--primary-color);border-radius:50%;width:6px;height:6px}.setting-item select{border:2px solid var(--border-color);border-radius:var(--radius-md);width:100%;color:var(--text-primary);cursor:pointer;transition:var(--transition-fast);background:#fff;padding:12px 16px;font-family:Crimson Text,serif;font-size:1rem}.setting-item select:focus{border-color:var(--primary-color);outline:none;box-shadow:0 0 0 3px #8b45131a}.setting-item input[type=range]{border-radius:var(--radius-full);background:var(--bg-light);-webkit-appearance:none;border:1px solid var(--border-color);outline:none;width:calc(100% - 80px);height:8px;margin-right:16px}.setting-item input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;background:linear-gradient(135deg, var(--primary-color), var(--primary-hover));cursor:pointer;width:24px;height:24px;box-shadow:var(--shadow-md);transition:var(--transition-fast);border:2px solid #fff;border-radius:50%}.setting-item input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.2);box-shadow:0 0 20px #8b451366}.value-display{width:70px;color:var(--text-secondary);text-align:right;background:var(--bg-light);border-radius:var(--radius-sm);border:1px solid var(--border-color);padding:8px 12px;font-family:JetBrains Mono,monospace;font-size:.95rem;font-weight:600;display:inline-block}.theme-grid{grid-template-columns:repeat(2,1fr);gap:16px;margin-bottom:24px;display:grid}.theme-btn{border-radius:var(--radius-md);cursor:pointer;transition:var(--transition-fast);text-align:center;box-shadow:var(--shadow-sm);border:3px solid #0000;padding:20px;font-family:Crimson Text,serif;font-size:1rem;font-weight:600}.theme-btn:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}.theme-btn.active{border-color:var(--primary-color);transform:translateY(-2px);box-shadow:0 0 0 4px #8b451326}.color-pickers{flex-direction:column;gap:20px;margin-bottom:24px;display:flex}.color-picker-item{align-items:center;gap:16px;display:flex}.color-picker-item label{width:90px;color:var(--text-secondary);margin:0;font-size:1rem;font-weight:600}.color-picker-item input[type=color]{border-radius:var(--radius-md);cursor:pointer;width:60px;height:60px;box-shadow:var(--shadow-md);transition:var(--transition-fast);border:none;padding:0}.color-picker-item input[type=color]:hover{box-shadow:var(--shadow-lg);transform:scale(1.1)}.color-picker-item input[type=text]{border:2px solid var(--border-color);border-radius:var(--radius-md);transition:var(--transition-fast);flex:1;padding:12px 16px;font-family:JetBrains Mono,monospace;font-size:.95rem}.color-picker-item input[type=text]:focus{border-color:var(--primary-color);outline:none;box-shadow:0 0 0 3px #8b45131a}.apply-colors-btn{background:linear-gradient(135deg, var(--primary-color), var(--primary-hover));color:#fff;border-radius:var(--radius-md);cursor:pointer;width:100%;transition:var(--transition-fast);box-shadow:var(--shadow-md);letter-spacing:.02em;border:none;padding:16px;font-family:Crimson Text,serif;font-size:1.1rem;font-weight:600}.apply-colors-btn:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px)}@media (width<=768px){.bookshelf{padding:30px 20px}.bookshelf-header{text-align:center;flex-direction:column;gap:24px;padding:28px}.bookshelf-header h1{font-size:2.2rem}.header-actions{flex-wrap:wrap;justify-content:center;gap:12px}.books-container{padding:24px}.books-container.grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:20px}.book-item.grid-view{padding:20px 16px}.book-cover{aspect-ratio:2/3}.book-icon{font-size:3.5rem}.book-item.list-view{gap:16px;padding:16px 20px}.book-icon-small{font-size:2.2rem}.book-title{font-size:1.1rem}.reader-content{padding:100px 24px;font-size:1rem}.chapter-title{font-size:1.8rem}.reader-header,.reader-footer{padding:20px 24px}.reader-header .header-actions button{width:44px;height:44px}.sidebar-container{width:100%}.settings-content{padding:24px}.theme-grid{grid-template-columns:1fr}.color-picker-item{flex-direction:column;align-items:stretch;gap:12px}.color-picker-item label{width:auto}.empty-shelf{padding:60px 40px}.empty-icon{font-size:7rem}}.loading-overlay{z-index:9999;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background-color:#0003;flex-direction:column;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.loading-spinner{border:3px solid #ffffff4d;border-top:3px solid var(--control-color,#4a89dc);border-radius:50%;width:40px;height:40px;margin-bottom:15px;animation:1s linear infinite spin}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.loading-overlay p{color:#fffc;font-size:14px;font-weight:400}