:root{--color-bg-primary: #0a0a0b;--color-bg-secondary: #141416;--color-bg-tertiary: #1c1c1f;--color-bg-elevated: #232326;--color-text-primary: #f5f5f7;--color-text-secondary: #a1a1a6;--color-text-tertiary: #6e6e73;--color-text-disabled: #48484a;--color-border: #2c2c2e;--color-border-focus: #4a4a4c;--color-accent: #6366f1;--color-accent-hover: #818cf8;--color-accent-active: #4f46e5;--color-success: #22c55e;--color-warning: #f59e0b;--color-error: #ef4444;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-full: 9999px;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;--font-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", monospace;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 2rem;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--line-height-tight: 1.25;--line-height-normal: 1.5;--line-height-relaxed: 1.75;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px rgba(0, 0, 0, .4);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .5);--shadow-xl: 0 20px 25px rgba(0, 0, 0, .6);--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .35s ease;--z-dropdown: 100;--z-modal: 200;--z-toast: 300}[data-theme=light]{--color-bg-primary: #ffffff;--color-bg-secondary: #f5f5f7;--color-bg-tertiary: #e5e5ea;--color-bg-elevated: #ffffff;--color-text-primary: #1d1d1f;--color-text-secondary: #6e6e73;--color-text-tertiary: #8e8e93;--color-text-disabled: #aeaeb2;--color-border: #d2d2d7;--color-border-focus: #8e8e93;--color-accent: #4f46e5;--color-accent-hover: #6366f1;--color-accent-active: #4338ca;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .15);--shadow-xl: 0 20px 25px rgba(0, 0, 0, .2)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-sans);font-size:var(--font-size-base);line-height:var(--line-height-normal);color:var(--color-text-primary);background-color:var(--color-bg-primary);min-height:100vh}#root{min-height:100vh;display:flex;flex-direction:column}a{color:var(--color-accent);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-accent-hover)}button{font-family:inherit;cursor:pointer;border:none;background:none}input,textarea,select{font-family:inherit;font-size:inherit}img{max-width:100%;height:auto}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);line-height:var(--line-height-tight);border-radius:var(--radius-md);transition:all var(--transition-fast);white-space:nowrap}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background-color:var(--color-accent);color:#fff}.btn-primary:hover:not(:disabled){background-color:var(--color-accent-hover)}.btn-primary:active:not(:disabled){background-color:var(--color-accent-active)}.btn-secondary{background-color:var(--color-bg-tertiary);color:var(--color-text-primary);border:1px solid var(--color-border)}.btn-secondary:hover:not(:disabled){background-color:var(--color-bg-elevated);border-color:var(--color-border-focus)}.btn-danger{background-color:var(--color-error);color:#fff}.btn-danger:hover:not(:disabled){background-color:#dc2626}.btn-icon{padding:var(--spacing-sm)}.btn-lg{padding:var(--spacing-md) var(--spacing-lg);font-size:var(--font-size-base)}.input{width:100%;padding:var(--spacing-sm) var(--spacing-md);font-size:var(--font-size-base);color:var(--color-text-primary);background-color:var(--color-bg-secondary);border:1px solid 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100%)}.login-container{width:100%;max-width:400px}.login-header{text-align:center;margin-bottom:var(--spacing-xl)}.login-title{font-size:var(--font-size-3xl);font-weight:var(--font-weight-bold);color:var(--color-text-primary);margin-bottom:var(--spacing-sm);letter-spacing:-.02em}.login-subtitle{color:var(--color-text-secondary);font-size:var(--font-size-base)}.login-form{background-color:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--spacing-xl)}.login-error{padding:var(--spacing-sm) var(--spacing-md);margin-bottom:var(--spacing-md);background-color:#ef44441a;border:1px solid rgba(239,68,68,.3);border-radius:var(--radius-md);color:var(--color-error);font-size:var(--font-size-sm);text-align:center}.login-submit{width:100%;margin-top:var(--spacing-sm)}@media(max-width:480px){.login-form{padding:var(--spacing-lg)}.login-title{font-size:var(--font-size-2xl)}}.dashboard{min-height:100vh;display:flex;flex-direction:column}.dashboard-header{background-color:var(--color-bg-secondary);border-bottom:1px solid var(--color-border);padding:var(--spacing-md) var(--spacing-lg);position:sticky;top:0;z-index:10}.dashboard-header-content{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between}.dashboard-logo{font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);color:var(--color-text-primary);letter-spacing:-.02em}.dashboard-user{display:flex;align-items:center;gap:var(--spacing-md)}.dashboard-username{color:var(--color-text-secondary);font-size:var(--font-size-sm)}.dashboard-main{flex:1;padding:var(--spacing-xl) var(--spacing-lg)}.dashboard-content{max-width:1200px;margin:0 auto}.dashboard-welcome{margin-bottom:var(--spacing-2xl)}.dashboard-welcome h2{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);color:var(--color-text-primary);margin-bottom:var(--spacing-xs)}.dashboard-welcome p{color:var(--color-text-secondary)}.dashboard-balance{margin-bottom:var(--spacing-2xl)}.balance-card{background:linear-gradient(135deg,var(--color-accent) 0%,var(--color-accent-hover) 100%);border-radius:var(--radius-lg);padding:var(--spacing-xl);color:#fff}.balance-header{display:flex;justify-content:space-between;align-items:flex-start;gap:var(--spacing-md);margin-bottom:var(--spacing-sm)}.balance-info{display:flex;align-items:baseline;gap:var(--spacing-md)}.balance-link{font-size:var(--font-size-sm);color:#ffffffe6;text-decoration:none;padding:var(--spacing-xs) var(--spacing-sm);border:1px solid rgba(255,255,255,.3);border-radius:var(--radius-md);transition:all var(--transition-fast);white-space:nowrap}.balance-link:hover{background-color:#ffffff1a;border-color:#ffffff80}.balance-label{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);opacity:.9}.balance-amount{font-size:var(--font-size-3xl);font-weight:var(--font-weight-bold);letter-spacing:-.02em}.balance-description{font-size:var(--font-size-sm);opacity:.8;margin:0}.dashboard-sections{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--spacing-lg);margin-bottom:var(--spacing-2xl)}.section-card{background-color:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--spacing-xl);cursor:pointer;transition:all var(--transition-normal);position:relative}.section-card:hover:not(.section-card-disabled){border-color:var(--color-accent);transform:translateY(-2px);box-shadow:var(--shadow-md)}.section-card-disabled{opacity:.6;cursor:not-allowed}.section-icon{font-size:2.5rem;display:block;margin-bottom:var(--spacing-md)}.section-name{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin-bottom:var(--spacing-xs)}.section-description{font-size:var(--font-size-sm);color:var(--color-text-secondary);line-height:var(--line-height-relaxed)}.section-badge{position:absolute;top:var(--spacing-md);right:var(--spacing-md);font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);color:var(--color-text-tertiary);background-color:var(--color-bg-tertiary);padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--radius-full)}.dashboard-admin{padding-top:var(--spacing-xl);border-top:1px solid var(--color-border)}.dashboard-admin h3{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin-bottom:var(--spacing-md)}.admin-links{display:flex;gap:var(--spacing-md)}@media(max-width:768px){.dashboard-header{padding:var(--spacing-sm) var(--spacing-md)}.dashboard-main{padding:var(--spacing-lg) var(--spacing-md)}.dashboard-user{gap:var(--spacing-sm)}.dashboard-username{display:none}.dashboard-sections{grid-template-columns:1fr}.balance-card{padding:var(--spacing-lg)}.balance-header{flex-direction:column;gap:var(--spacing-sm)}.balance-info{flex-direction:column;gap:var(--spacing-xs)}.balance-amount{font-size:var(--font-size-2xl)}.balance-link{align-self:flex-start}}.settings-page{min-height:100vh;display:flex;flex-direction:column}.settings-header{background-color:var(--color-bg-secondary);border-bottom:1px solid var(--color-border);padding:var(--spacing-md) var(--spacing-lg);position:sticky;top:0;z-index:10}.settings-header-content{max-width:1200px;margin:0 auto;display:flex;align-items:center;gap:var(--spacing-lg)}.settings-back{color:var(--color-text-secondary);font-size:var(--font-size-sm);transition:color var(--transition-fast)}.settings-back:hover{color:var(--color-text-primary)}.settings-title{font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);color:var(--color-text-primary)}.settings-main{flex:1;padding:var(--spacing-xl) var(--spacing-lg);max-width:1200px;margin:0 auto;width:100%}.settings-section{background-color:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden}.settings-section-header{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-md) var(--spacing-lg);border-bottom:1px solid var(--color-border)}.settings-section-header h2{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text-primary)}.settings-loading{display:flex;align-items:center;justify-content:center;gap:var(--spacing-md);padding:var(--spacing-2xl);color:var(--color-text-secondary)}.users-table-container{overflow-x:auto}.users-table{min-width:700px}.users-table th{background-color:transparent;border-bottom:1px solid var(--color-border)}.users-table td{vertical-align:middle}.users-table td.user-actions-cell{vertical-align:middle;white-space:nowrap}.users-table td.user-actions-cell .btn{margin-left:var(--spacing-sm)}.users-table td.user-actions-cell .btn:first-child{margin-left:0}.users-table th:first-child,.users-table td:first-child{padding-left:var(--spacing-lg)}.users-table th:last-child,.users-table td:last-child{padding-right:var(--spacing-lg)}.user-username{font-weight:var(--font-weight-medium);color:var(--color-text-primary)}.user-you{margin-left:var(--spacing-xs);font-size:var(--font-size-xs);color:var(--color-text-tertiary)}.user-date{color:var(--color-text-secondary);font-size:var(--font-size-sm)}.reset-password-info{margin-bottom:var(--spacing-md);color:var(--color-text-secondary)}.user-balance{display:flex;align-items:center;gap:var(--spacing-sm);white-space:nowrap}.balance-amount{font-weight:var(--font-weight-medium);color:var(--color-text-primary);font-variant-numeric:tabular-nums}.balance-actions{display:inline-flex;gap:var(--spacing-xs);flex-shrink:0}.balance-actions .btn-icon{padding:var(--spacing-xs);font-size:var(--font-size-sm);line-height:1;min-width:28px;min-height:28px;display:flex;align-items:center;justify-content:center}.modal-lg{max-width:800px;width:90vw}.transactions-table{font-size:var(--font-size-sm)}.transactions-table th,.transactions-table td{padding:var(--spacing-sm) var(--spacing-md)}.tx-date{white-space:nowrap;color:var(--color-text-secondary);font-size:var(--font-size-xs)}.tx-amount{font-weight:var(--font-weight-medium);font-variant-numeric:tabular-nums}.tx-amount.positive{color:var(--color-success)}.tx-amount.negative{color:var(--color-error)}.tx-balance{font-variant-numeric:tabular-nums;color:var(--color-text-secondary)}.tx-description{color:var(--color-text-secondary);font-size:var(--font-size-xs);max-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tx-tokens{display:block;font-size:var(--font-size-xs);color:var(--color-text-tertiary)}.no-transactions{text-align:center;color:var(--color-text-secondary);padding:var(--spacing-xl)}.pagination{display:flex;align-items:center;justify-content:center;gap:var(--spacing-md);margin-top:var(--spacing-md);padding-top:var(--spacing-md);border-top:1px solid var(--color-border)}.pagination-info{font-size:var(--font-size-sm);color:var(--color-text-secondary)}.adjust-balance-info{margin-bottom:var(--spacing-sm);color:var(--color-text-secondary)}.current-balance{margin-bottom:var(--spacing-md);padding:var(--spacing-sm) var(--spacing-md);background-color:var(--color-bg-tertiary);border-radius:var(--radius-md);font-size:var(--font-size-sm)}.form-hint{margin-top:var(--spacing-xs);font-size:var(--font-size-xs);color:var(--color-text-tertiary)}.amount-preview{margin-top:var(--spacing-md);padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--radius-md);font-weight:var(--font-weight-medium);text-align:center}.amount-preview.positive{background-color:rgba(var(--color-success-rgb),.1);color:var(--color-success)}.amount-preview.negative{background-color:rgba(var(--color-error-rgb),.1);color:var(--color-error)}@media(max-width:768px){.settings-header{padding:var(--spacing-sm) var(--spacing-md)}.settings-main{padding:var(--spacing-md)}.settings-section-header{flex-direction:column;align-items:stretch;gap:var(--spacing-md)}.users-table td.user-actions-cell{white-space:normal}.users-table td.user-actions-cell .btn{display:block;margin-left:0;margin-bottom:var(--spacing-xs)}.users-table td.user-actions-cell .btn:last-child{margin-bottom:0}.user-balance{flex-direction:column;align-items:flex-start;gap:var(--spacing-xs)}.users-table th:first-child,.users-table td:first-child{padding-left:var(--spacing-md)}.users-table th:last-child,.users-table td:last-child{padding-right:var(--spacing-md)}}._container_6hh0h_1{margin-top:2rem}._header_6hh0h_5{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;margin-bottom:1.5rem}._title_6hh0h_13{font-size:1.125rem;font-weight:600;color:var(--text-primary);margin:0 0 .25rem}._description_6hh0h_20{font-size:.875rem;color:var(--text-secondary);margin:0}._loading_6hh0h_26{text-align:center;padding:2rem;color:var(--text-secondary)}._empty_6hh0h_32{text-align:center;padding:3rem;background:var(--bg-secondary);border-radius:8px;color:var(--text-secondary)}._list_6hh0h_40{display:flex;flex-direction:column;gap:1rem}._card_6hh0h_46{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:1rem 1.25rem;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:8px}._cardInfo_6hh0h_57{flex:1;min-width:0}._cardName_6hh0h_62{font-size:1rem;font-weight:500;color:var(--text-primary);margin:0 0 .25rem}._cardModel_6hh0h_69{font-size:.875rem;color:var(--text-secondary);margin:0 0 .5rem}._status_6hh0h_75{display:inline-block;padding:.125rem .5rem;font-size:.75rem;border-radius:4px}._active_6hh0h_82{background:var(--success-bg);color:var(--success)}._inactive_6hh0h_87{background:var(--warning-bg);color:var(--warning)}._cardActions_6hh0h_92{display:flex;gap:.5rem;flex-shrink:0}@media(max-width:640px){._header_6hh0h_5,._card_6hh0h_46{flex-direction:column;align-items:stretch}._cardActions_6hh0h_92{margin-top:.75rem;justify-content:flex-end}}._page_2i83o_1{min-height:100vh;display:flex;flex-direction:column;background:var(--color-bg-primary)}._header_2i83o_8{background:var(--color-bg-secondary);border-bottom:1px solid var(--color-border);padding:var(--spacing-md) var(--spacing-lg)}._headerContent_2i83o_14{max-width:800px;margin:0 auto;display:flex;align-items:center;gap:var(--spacing-lg)}._back_2i83o_22{color:var(--color-text-secondary);text-decoration:none;font-size:var(--font-size-sm);transition:color 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#22c55e)}._confirmOverlay_xg4kp_150{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}._confirmDialog_xg4kp_160{background:var(--bg-primary);border:1px solid var(--border-color);border-radius:12px;padding:20px;min-width:280px;text-align:center}._confirmDialog_xg4kp_160 p{margin:0 0 16px;font-size:14px;color:var(--text-primary)}._confirmButtons_xg4kp_175{display:flex;gap:12px;justify-content:center}._confirmButtons_xg4kp_175 button{padding:8px 16px;border-radius:6px;font-size:13px;cursor:pointer;border:1px solid var(--border-color);background:var(--bg-secondary);color:var(--text-primary);transition:all .15s ease}._confirmButtons_xg4kp_175 button:hover{background:var(--bg-hover)}._deleteBtn_xg4kp_196{background:var(--danger, #ef4444)!important;border-color:var(--danger, #ef4444)!important;color:#fff!important}._deleteBtn_xg4kp_196:hover{opacity:.9}.library{min-height:100vh;background:var(--color-bg-primary);color:var(--color-text-primary)}.library-loading{display:flex;justify-content:center;align-items:center;min-height:100vh}.library-header{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-md) var(--spacing-lg);border-bottom:1px solid 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140px)}.library-content.drag-over{background:var(--color-bg-secondary)}.library-uploading{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-md);margin-bottom:var(--spacing-md);background:var(--color-bg-secondary);border-radius:var(--radius-md)}.library-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-3xl);color:var(--color-text-tertiary)}.library-empty svg{margin-bottom:var(--spacing-md);opacity:.5}.library-empty 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/ 3;background:var(--color-bg-tertiary);display:flex;align-items:center;justify-content:center}.book-cover img{width:100%;height:100%;object-fit:cover}.book-cover-placeholder{color:var(--color-text-tertiary)}.book-info{padding:var(--spacing-sm)}.book-title{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);margin:0 0 var(--spacing-2xs);overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.book-author{font-size:var(--font-size-xs);color:var(--color-text-secondary);margin:0 0 var(--spacing-2xs);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.book-size{font-size:var(--font-size-xs);color:var(--color-text-tertiary);margin:0}.book-progress{height:3px;background:var(--color-bg-tertiary);border-radius:2px;margin-top:var(--spacing-xs);overflow:hidden}.book-progress-bar{height:100%;background:var(--color-accent);border-radius:2px;transition:width .3s ease}.book-actions{position:absolute;top:var(--spacing-xs);right:var(--spacing-xs);display:flex;align-items:center;gap:4px;opacity:0;transition:var(--transition-fast)}.book-card:hover .book-actions{opacity:1}.book-delete{display:flex;align-items:center;justify-content:center;width:28px;height:28px;border:none;background:#0009;border-radius:var(--radius-sm);color:var(--color-text-primary);cursor:pointer;transition:var(--transition-fast)}.book-delete:hover{background:var(--color-error)}.drop-overlay{position:absolute;inset:0;background:rgba(var(--color-accent-rgb),.1);border:2px dashed var(--color-accent);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;pointer-events:none}.drop-overlay-content{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-sm);color:var(--color-accent)}@media(max-width:768px){.library-header{flex-direction:column;gap:var(--spacing-md);padding:var(--spacing-md)}.library-header-left{width:100%}.library-header-right{width:100%;justify-content:flex-end}.library-header-right .btn{flex:1;justify-content:center}.library-content{padding:var(--spacing-md)}.folders-grid,.books-grid{grid-template-columns:repeat(2,1fr)}.folder-delete,.book-actions{opacity:1}}@media(max-width:480px){.folders-grid,.books-grid{grid-template-columns:1fr 1fr}}.reader{position:fixed;inset:0;background:var(--color-bg-primary);display:flex;flex-direction:column;overflow:hidden}.reader-loading{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--spacing-md);color:var(--color-text-secondary);background:var(--color-bg-primary);z-index:150}.reader-error{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--spacing-md);color:var(--color-text-secondary)}.reader-header{display:flex;align-items:center;gap:var(--spacing-md);padding:var(--spacing-md) var(--spacing-lg);background:var(--color-bg-secondary);border-bottom:1px solid var(--color-border);position:absolute;top:0;left:0;right:0;z-index:100;transform:translateY(-100%);transition:transform .3s ease}.reader-header.visible{transform:translateY(0)}.reader-back{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border:none;background:transparent;border-radius:var(--radius-md);color:var(--color-text-secondary);cursor:pointer;transition:var(--transition-fast)}.reader-back:hover{background:var(--color-bg-tertiary);color:var(--color-text-primary)}.reader-title-wrap{flex:1;min-width:0}.reader-title{font-size:var(--font-size-md);font-weight:var(--font-weight-semibold);margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.reader-author{font-size:var(--font-size-sm);color:var(--color-text-secondary);margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.reader-toc-button{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border:none;background:transparent;border-radius:var(--radius-md);color:var(--color-text-secondary);cursor:pointer;transition:var(--transition-fast)}.reader-toc-button:hover{background:var(--color-bg-tertiary);color:var(--color-text-primary)}.reader-container{flex:1;display:flex;position:relative;overflow:hidden}.reader-nav{position:absolute;top:50%;transform:translateY(-50%);width:60px;height:120px;border:none;background:#0000004d;color:#fff;cursor:pointer;z-index:50;opacity:0;transition:opacity .3s ease;display:flex;align-items:center;justify-content:center}.reader-nav.visible{opacity:1}.reader-nav:hover{background:#00000080}.reader-nav.prev{left:0;border-radius:0 var(--radius-md) var(--radius-md) 0}.reader-nav.next{right:0;border-radius:var(--radius-md) 0 0 var(--radius-md)}.reader-viewer-wrapper{flex:1;position:relative;overflow:hidden}.reader-viewer{width:100%;height:100%;background:#fff;overflow:hidden}.reader-touch-overlay{position:absolute;inset:0;z-index:10;background:transparent;cursor:pointer;pointer-events:auto;-webkit-tap-highlight-color:transparent;-webkit-touch-callout:none;-webkit-user-select:none;user-select:none}.reader-footer{display:flex;align-items:center;gap:var(--spacing-md);padding:var(--spacing-sm) var(--spacing-lg);background:var(--color-bg-secondary);border-top:1px solid var(--color-border);position:absolute;bottom:0;left:0;right:0;z-index:100;transform:translateY(100%);transition:transform .3s ease}.reader-footer.visible{transform:translateY(0)}.reader-progress-bar{flex:1;height:4px;background:var(--color-bg-tertiary);border-radius:2px;overflow:hidden}.reader-progress-fill{height:100%;background:var(--color-accent);border-radius:2px;transition:width .3s ease}.reader-progress-text{font-size:var(--font-size-sm);color:var(--color-text-secondary);min-width:40px;text-align:right}.reader-toc-overlay{position:fixed;inset:0;background:#00000080;z-index:200;display:flex;align-items:flex-start;justify-content:flex-end}.reader-toc{width:320px;max-width:100%;height:100%;background:var(--color-bg-secondary);display:flex;flex-direction:column;animation:slideIn .2s ease}@keyframes slideIn{0%{transform:translate(100%)}to{transform:translate(0)}}.reader-toc-header{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-md) var(--spacing-lg);border-bottom:1px solid var(--color-border)}.reader-toc-header h2{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);margin:0}.reader-toc-header button{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border:none;background:transparent;border-radius:var(--radius-sm);color:var(--color-text-secondary);cursor:pointer}.reader-toc-header button:hover{background:var(--color-bg-tertiary);color:var(--color-text-primary)}.reader-toc-list{flex:1;overflow-y:auto;padding:var(--spacing-sm)}.reader-toc-item{display:block;width:100%;padding:var(--spacing-sm) var(--spacing-md);border:none;background:transparent;text-align:left;color:var(--color-text-primary);font-size:var(--font-size-sm);border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition-fast)}.reader-toc-item:hover{background:var(--color-bg-tertiary)}.reader-toc-empty{text-align:center;color:var(--color-text-tertiary);padding:var(--spacing-lg)}.reader-settings{padding:var(--spacing-md) var(--spacing-lg);border-bottom:1px solid var(--color-border);display:flex;flex-direction:column;gap:var(--spacing-md)}.reader-settings-section{display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-md)}.reader-settings-label{font-size:var(--font-size-sm);color:var(--color-text-secondary);font-weight:var(--font-weight-medium)}.reader-font-controls{display:flex;align-items:center;gap:var(--spacing-sm)}.reader-font-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border:1px solid 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var(--color-accent-muted)}.reader-theme-light{background:#fff}.reader-theme-sepia{background:#f4ecd8}.reader-theme-dark{background:#1a1a1a}@media(max-width:1023px){.reader-nav,.reader-nav.visible,.reader-nav.prev,.reader-nav.next{display:none!important;visibility:hidden!important;pointer-events:none!important}}@media(max-width:767px){.reader{padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom)}.reader-header{padding:var(--spacing-sm) var(--spacing-md);padding-top:calc(var(--spacing-sm) + env(safe-area-inset-top))}.reader-title{font-size:var(--font-size-sm)}.reader-author{display:none}.reader-back,.reader-toc-button{width:44px;height:44px;min-width:44px}.reader-footer{padding:var(--spacing-sm) var(--spacing-md);padding-bottom:calc(var(--spacing-sm) + env(safe-area-inset-bottom))}.reader-progress-bar{height:3px}.reader-toc-overlay{align-items:flex-end;justify-content:center}.reader-toc{width:100%;height:auto;max-height:70vh;border-radius:var(--radius-lg) 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