.aura-showcase-reader{
    
    --bg-app: #f5f7fa;
    --bg-header: #ffffff;
    --bg-panel: #ffffff;
    --bg-paper: #ffffff;
    --bg-paper-text: #1d2129;
    --border-color: #e5e6eb;
    --border-hover: #c9cdd4;
    
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --primary-light: #eff6ff;
    
    --text-primary: #1d2129;
    --text-secondary: #4e5969;
    --text-muted: #86909c;
    
    --hl-yellow-bg: rgba(254, 240, 138, 0.65);
    --hl-yellow-border: #fde047;
    --annotation-highlight-bg: var(--hl-yellow-bg);
    --hl-green-bg: rgba(187, 247, 208, 0.65);
    --hl-green-border: #86efac;

    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    
    
    --header-height: 52px;
    --nav-pill-bg: #f2f3f5;
    --pagination-height: 44px;
}
.aura-showcase-reader.theme-dark{
    --bg-app: #0f172a;
    --bg-header: #1e293b;
    --bg-panel: #1e293b;
    --bg-paper: #182234;
    --bg-paper-text: #e2e8f0;
    --border-color: #334155;
    --border-hover: #475569;
    
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    --nav-pill-bg: #243044;
    
    --hl-yellow-bg: rgba(234, 179, 8, 0.35);
    --hl-yellow-border: #ca8a04;
    --annotation-highlight-bg: var(--hl-yellow-bg);
    --hl-green-bg: rgba(34, 197, 94, 0.35);
    --hl-green-border: #16a34a;
}
.aura-showcase-reader .reader-panel.paper-sepia{
    --bg-paper: #fbf0d9;
    --bg-paper-text: #433422;
}
.aura-showcase-reader .reader-panel.paper-dark{
    --bg-paper: #121827;
    --bg-paper-text: #d1d5db;
}
.aura-showcase-reader *{
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
.aura-showcase-reader{
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-app);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
.aura-showcase-reader button,.aura-showcase-reader input,.aura-showcase-reader select,.aura-showcase-reader textarea{
    font-family: inherit;
    font-size: inherit;
}
.aura-showcase-reader .btn{
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 6px;
    font-weight: 500;
    font-size: 13px;
    cursor: pointer;
    border: 1px solid transparent;
    transition: var(--transition-fast);
    white-space: nowrap;
    background: transparent;
    color: var(--text-primary);
}
.aura-showcase-reader .btn-primary{
    background-color: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
}
.aura-showcase-reader .btn-primary:hover{
    background-color: var(--primary-hover);
}
.aura-showcase-reader .btn-outline{
    border-color: var(--border-color);
    background-color: var(--bg-panel);
}
.aura-showcase-reader .btn-outline:hover{
    border-color: var(--primary);
    color: var(--primary);
}
.aura-showcase-reader .btn-sm{
    padding: 4px 10px;
    font-size: 12px;
}
.aura-showcase-reader .btn-outline-sm{
    padding: 4px 10px;
    font-size: 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-panel);
}
.aura-showcase-reader .btn-outline-sm:hover{
    border-color: var(--primary);
    color: var(--primary);
}
.aura-showcase-reader .btn-ghost{
    color: var(--text-secondary);
}
.aura-showcase-reader .btn-ghost:hover{
    background-color: rgba(0, 0, 0, 0.05);
    color: var(--text-primary);
}
.aura-showcase-reader .btn-ghost-sm{
    padding: 3px 8px;
    font-size: 12px;
    color: var(--text-secondary);
}
.aura-showcase-reader .btn-ghost-sm:hover{
    background-color: rgba(0, 0, 0, 0.05);
    color: var(--text-primary);
}
.aura-showcase-reader .btn-icon{
    width: 34px;
    height: 34px;
    padding: 0;
    border-radius: 6px;
}
.aura-showcase-reader .btn-icon:hover{
    background-color: rgba(0, 0, 0, 0.06);
}
.aura-showcase-reader .btn-icon-sm{
    padding: 4px 8px;
    font-size: 13px;
    border-radius: 4px;
    color: var(--text-secondary);
}
.aura-showcase-reader .btn-icon-sm:hover{
    background-color: rgba(0, 0, 0, 0.06);
    color: var(--text-primary);
}
.aura-showcase-reader .btn-icon-sm.active{
    background-color: var(--primary-light);
    color: var(--primary);
    border-color: rgba(59, 130, 246, 0.25);
    font-weight: 600;
}
.aura-showcase-reader.theme-dark .btn-icon-sm.active{
    background-color: rgba(59, 130, 246, 0.18);
    color: #60a5fa;
    border-color: rgba(59, 130, 246, 0.35);
}
.aura-showcase-reader .btn-icon-sm.auto-downgraded{
    background-color: rgba(245, 158, 11, 0.12);
    color: #d97706;
    border-color: rgba(245, 158, 11, 0.3);
}
.aura-showcase-reader.theme-dark .btn-icon-sm.auto-downgraded{
    background-color: rgba(245, 158, 11, 0.18);
    color: #fbbf24;
    border-color: rgba(245, 158, 11, 0.35);
}
.aura-showcase-reader .btn-block{
    width: 100%;
}
.aura-showcase-reader .select-sm{
    padding: 4px 8px;
    font-size: 12px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-panel);
    color: var(--text-primary);
}
.aura-showcase-reader .select-full,.aura-showcase-reader .input-full{
    width: 100%;
    padding: 8px 12px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-panel);
    color: var(--text-primary);
    font-size: 13px;
}
.aura-showcase-reader .select-full:focus,.aura-showcase-reader .input-full:focus{
    outline: none;
    border-color: var(--primary);
}
.aura-showcase-reader .app-header{
    height: var(--header-height);
    background-color: var(--bg-header);
    border-bottom: 1px solid var(--border-color);
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, auto) minmax(0, 1fr);
    align-items: center;
    padding: 0 16px;
    gap: 12px;
    z-index: 20;
    position: relative;
}
.aura-showcase-reader .header-side{
    display: flex;
    align-items: center;
    min-width: 0;
}
.aura-showcase-reader .header-brand{
    justify-self: start;
}
.aura-showcase-reader .header-actions{
    justify-self: end;
    gap: 2px;
}
.aura-showcase-reader .brand{
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}
.aura-showcase-reader .brand-icon{
    font-size: 22px;
    color: var(--primary);
    flex: none;
}
.aura-showcase-reader .brand-name{
    font-weight: 700;
    font-size: 16px;
    letter-spacing: -0.3px;
    white-space: nowrap;
}
.aura-showcase-reader .badge{
    font-size: 10px;
    font-weight: 600;
    background: linear-gradient(135deg, var(--primary), #6366f1);
    color: #fff;
    padding: 2px 6px;
    border-radius: 10px;
}
.aura-showcase-reader .header-center{
    justify-self: center;
    min-width: 0;
    max-width: min(440px, calc(100vw - 230px));
}
.aura-showcase-reader .book-nav-btn{
    display: inline-flex;
    align-items: center;
    gap: 8px;
    max-width: 100%;
    height: 34px;
    padding: 0 12px 0 14px;
    border: none;
    border-radius: 999px;
    background-color: var(--nav-pill-bg);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    line-height: 1;
}
.aura-showcase-reader .book-nav-btn:hover,.aura-showcase-reader .book-nav-btn.is-open{
    background-color: #e8eaed;
    color: var(--text-primary);
}
.aura-showcase-reader.theme-dark .book-nav-btn:hover,.aura-showcase-reader.theme-dark .book-nav-btn.is-open{
    background-color: #2d3b52;
}
.aura-showcase-reader .book-nav-btn i{
    flex: none;
    font-size: 16px;
}
.aura-showcase-reader .book-nav-title{
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-primary);
}
.aura-showcase-reader .book-nav-caret{
    transition: transform 0.15s ease;
}
.aura-showcase-reader .book-nav-btn.is-open .book-nav-caret{
    transform: rotate(180deg);
}
.aura-showcase-reader .book-format-tag{
    font-size: 10px;
    font-weight: 700;
    background: var(--primary-light);
    color: var(--primary);
    padding: 1px 5px;
    border-radius: 4px;
}
.aura-showcase-reader .nav-icon{
    position: relative;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 20px;
}
.aura-showcase-reader .nav-icon:hover,.aura-showcase-reader .nav-icon[aria-expanded="true"]{
    background-color: var(--nav-pill-bg);
    color: var(--text-primary);
}
.aura-showcase-reader .nav-icon .badge-count{
    position: absolute;
    top: 2px;
    right: 2px;
    min-width: 16px;
    height: 16px;
    padding: 0 4px;
    border-radius: 8px;
    background: var(--primary);
    color: #fff;
    font-size: 10px;
    line-height: 16px;
    text-align: center;
}
.aura-showcase-reader .appearance-panel,.aura-showcase-reader .export-panel{
    display: none;
    position: fixed;
    top: calc(var(--header-height) + 8px);
    right: 16px;
    width: min(300px, calc(100vw - 24px));
    padding: 8px;
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    z-index: 40;
}
.aura-showcase-reader .appearance-panel.open,.aura-showcase-reader .export-panel.open{
    display: block;
}
.aura-showcase-reader .appearance-row{
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-height: 40px;
    padding: 6px 8px;
    font-size: 13px;
    color: var(--text-secondary);
}
.aura-showcase-reader .appearance-row + .appearance-row{
    border-top: 1px solid var(--border-color);
}
.aura-showcase-reader .appearance-row .select-sm{
    max-width: 160px;
}
.aura-showcase-reader .appearance-stepper{
    display: flex;
    align-items: center;
    gap: 6px;
}
.aura-showcase-reader .font-picker{ position: relative; }
.aura-showcase-reader .font-trigger{
    width: 180px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 7px 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    background: var(--bg-panel);
    cursor: pointer;
    font: inherit;
}
.aura-showcase-reader .font-trigger > span:first-child{ overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.aura-showcase-reader .font-trigger[aria-expanded="true"]{ border-color: var(--primary); }
.aura-showcase-reader .font-menu{
    position: absolute;
    right: 0;
    top: calc(100% + 6px);
    width: 260px;
    max-height: calc(100vh - 130px);
    overflow-y: auto;
    padding: 8px;
    background: var(--bg-panel);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
    z-index: 45;
}
.aura-showcase-reader .font-menu [hidden],.aura-showcase-reader .font-menu[hidden]{ display: none !important; }
.aura-showcase-reader .font-group-label{ padding: 8px 9px 4px; font-size: 12px; color: var(--text-muted); }
.aura-showcase-reader .font-option{
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    min-height: 34px;
    padding: 7px 9px;
    text-align: left;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
    font: inherit;
}
.aura-showcase-reader .font-option:not(:disabled):hover,.aura-showcase-reader .font-option:not(:disabled):focus-visible{ background: var(--nav-pill-bg); }
.aura-showcase-reader .font-option[aria-checked="true"]{ color: var(--primary); background: var(--primary-light); }
.aura-showcase-reader .font-option[aria-checked="true"]::after{ content: '✓'; margin-left: auto; }
.aura-showcase-reader .font-option:disabled{ cursor: default; color: var(--text-muted); }
.aura-showcase-reader .font-option-note{ margin-left: auto; font-size: 11px; }
.aura-showcase-reader .font-more-entry,.aura-showcase-reader .font-back{
    display: flex;
    justify-content: space-between;
    width: 100%;
    padding: 10px 9px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    text-align: left;
    font: inherit;
    cursor: pointer;
}
.aura-showcase-reader .font-more-entry{ margin-top: 8px; border-top: 1px solid var(--border-color); }
.aura-showcase-reader .font-search{
    width: 100%;
    margin: 5px 0 8px;
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-app);
    color: var(--text-primary);
}
.aura-showcase-reader .font-browser-actions{ display: flex; gap: 6px; }
.aura-showcase-reader .font-browser-actions button{
    flex: 1;
    padding: 7px 5px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-panel);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 12px;
}
.aura-showcase-reader .font-browser-actions button:disabled{ opacity: 0.5; cursor: wait; }
.aura-showcase-reader .font-status{ padding: 7px 4px; color: var(--text-secondary); font-size: 12px; }
.aura-showcase-reader .font-browser-list{ max-height: 260px; overflow-y: auto; }
.aura-showcase-reader .font-empty{ padding: 16px 8px; color: var(--text-muted); font-size: 12px; }
.aura-showcase-reader .book-paper.reader-font-override,.aura-showcase-reader .book-paper.reader-font-override *{ font-family: var(--reader-font-family) !important; }
.aura-showcase-reader .reader-mode-group{
    display: flex;
    align-items: center;
    gap: 6px;
}
.aura-showcase-reader .mode-choice.active{
    background-color: var(--primary-light);
    color: var(--primary);
}
.aura-showcase-reader #btn-export-menu[aria-expanded="true"]{
    color: var(--primary);
    background: var(--primary-light);
}
.aura-showcase-reader .export-panel{
    max-height: calc(100vh - var(--header-height) - 24px);
    overflow-y: auto;
    color: var(--text-primary);
}
.aura-showcase-reader .export-panel-heading{
    padding: 8px 10px 12px;
}
.aura-showcase-reader .export-panel-heading h2{
    margin: 0;
    font-size: 14px;
    font-weight: 500;
}
.aura-showcase-reader .export-panel-heading p{
    margin: 3px 0 0;
    color: var(--text-secondary);
    font-size: 12px;
    overflow-wrap: anywhere;
}
.aura-showcase-reader .export-section-title{
    margin: 0;
    padding: 7px 10px 4px;
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 400;
}
.aura-showcase-reader .export-menu-action{
    width: 100%;
    min-height: 42px;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 10px;
    border: none;
    border-radius: 7px;
    background: transparent;
    color: var(--text-primary);
    font: inherit;
    font-size: 14px;
    text-align: left;
    cursor: pointer;
}
.aura-showcase-reader .export-menu-action:hover{
    background: var(--primary-light);
}
.aura-showcase-reader .export-menu-action i{
    flex: none;
    color: var(--primary);
    font-size: 18px;
}
.aura-showcase-reader .export-backup-action i{
    color: #059669;
}
.aura-showcase-reader.theme-dark .export-backup-action i{
    color: #34d399;
}
.aura-showcase-reader .export-action-label{
    flex: 1;
    min-width: 0;
}
.aura-showcase-reader .export-extension{
    flex: none;
    color: var(--text-secondary);
    font-size: 11px;
}
.aura-showcase-reader .export-panel-divider{
    margin: 8px 10px;
    border: none;
    border-top: 1px solid var(--border-color);
}
.aura-showcase-reader .export-panel-note{
    margin: 0;
    padding: 5px 10px 8px;
    color: var(--text-secondary);
    font-size: 12px;
}
@media (max-width: 480px){.aura-showcase-reader .export-panel{
        right: 16px;
    }
}
.aura-showcase-reader .workspace-container{
    flex: 1;
    display: flex;
    height: calc(100vh - var(--header-height));
    overflow: hidden;
    position: relative;
}
@media (max-width: 680px){.aura-showcase-reader .brand-name{
        display: none;
    }
.aura-showcase-reader .header-center{
        max-width: calc(100vw - 168px);
    }
.aura-showcase-reader .app-header{
        padding: 0 10px;
        gap: 8px;
    }
}
.aura-showcase-reader .reader-panel{
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-app);
    position: relative;
    overflow: hidden;
    transition: background-color 0.2s;
}
.aura-showcase-reader .toolbar-group{
    display: flex;
    align-items: center;
    gap: 8px;
}
.aura-showcase-reader .divider{
    width: 1px;
    height: 16px;
    background-color: var(--border-color);
    margin: 0 4px;
}
.aura-showcase-reader .page-indicator{
    font-size: 13px;
    color: var(--text-secondary);
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
}
.aura-showcase-reader .font-size-text{
    font-size: 12px;
    min-width: 32px;
    text-align: center;
    font-family: 'Fira Code', monospace;
}
.aura-showcase-reader .paper-themes{
    display: flex;
    gap: 6px;
    align-items: center;
}
.aura-showcase-reader .paper-btn{
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition-fast);
}
.aura-showcase-reader .paper-btn.active{
    transform: scale(1.15);
    border-color: var(--primary);
}
.aura-showcase-reader .paper-white{ background-color: #ffffff; border: 1px solid #d1d5db; }
.aura-showcase-reader .paper-sepia{ background-color: #fbf0d9; border: 1px solid #e5d3b3; }
.aura-showcase-reader .paper-dark{ background-color: #121827; border: 1px solid #374151; }
.aura-showcase-reader .toc-drawer{
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    width: 280px;
    background-color: var(--bg-panel);
    border-right: 1px solid var(--border-color);
    z-index: 15;
    transform: translateX(-100%);
    transition: transform 0.25s ease-in-out;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-md);
}
.aura-showcase-reader .toc-drawer.open{
    transform: translateX(0);
}
.aura-showcase-reader .toc-header{
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
}
.aura-showcase-reader .toc-header h4{
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
}
.aura-showcase-reader .toc-list{
    list-style: none;
    overflow-y: auto;
    flex: 1;
    padding: 8px 0;
}
.aura-showcase-reader .toc-item{
    padding: 8px 14px 8px 16px;
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 8px;
    transition: var(--transition-fast);
}
.aura-showcase-reader .toc-item .toc-title{
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.aura-showcase-reader .toc-item .toc-page{
    flex: none;
    color: var(--text-muted);
    font-size: 11px;
}
.aura-showcase-reader .toc-level-1{ padding-left: 38px; }
.aura-showcase-reader .toc-level-2{ padding-left: 60px; }
.aura-showcase-reader .toc-level-3{ padding-left: 82px; }
.aura-showcase-reader .toc-level-4{ padding-left: 104px; }
.aura-showcase-reader .toc-level-5{ padding-left: 126px; }
.aura-showcase-reader .toc-level-6{ padding-left: 148px; }
.aura-showcase-reader .toc-item.toc-branch{
    color: var(--text-primary);
    font-weight: 600;
}
.aura-showcase-reader .toc-item:hover,.aura-showcase-reader .toc-item.active{
    background-color: var(--primary-light);
    color: var(--primary);
    font-weight: 500;
}
.aura-showcase-reader .toc-item.toc-branch:hover,.aura-showcase-reader .toc-item.toc-branch.active{
    font-weight: 600;
}
.aura-showcase-reader .reader-viewport{
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 32px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}
.aura-showcase-reader .reader-viewport.chapter-paged{
    overflow: hidden;
    align-items: stretch;
}
.aura-showcase-reader .reader-viewport.chapter-scroll{
    overflow-x: hidden;
    overflow-y: auto;
    align-items: stretch;
}
.aura-showcase-reader .paper-container.chapter-flow{
    max-width: none;
    width: 100%;
    min-height: 0;
    margin: 0;
    background-color: var(--bg-paper);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    display: block;
}
.aura-showcase-reader .reader-viewport.chapter-paged .paper-container.chapter-flow{
    height: 100%;
    overflow: hidden;
}
.aura-showcase-reader .reader-viewport.chapter-scroll .paper-container.chapter-flow{
    height: auto;
    min-height: 100%;
    overflow: visible;
}
.aura-showcase-reader .book-paper.chapter-flow{
    max-width: none;
    border: none;
    box-shadow: none;
    border-radius: 0;
    background: transparent;
}
.aura-showcase-reader .book-paper.chapter-flow.mode-scroll{
    height: auto;
    overflow: visible;
}
.aura-showcase-reader .flow-break,.aura-showcase-reader .flow-tail,.aura-showcase-reader .flow-pad,.aura-showcase-reader .flow-start{
    break-before: column;
    -webkit-column-break-before: always;
}
.aura-showcase-reader .flow-break,.aura-showcase-reader .flow-tail,.aura-showcase-reader .flow-pad{
    display: block;
    width: 0;
    margin: 0;
    padding: 0;
    overflow: hidden;
}
.aura-showcase-reader .flow-break{
    height: 0;
}
.aura-showcase-reader .flow-tail,.aura-showcase-reader .flow-pad{
    height: 100%;
}
.aura-showcase-reader .reader-pagination{
    flex: 0 0 var(--pagination-height);
    height: var(--pagination-height);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-panel);
    user-select: none;
}
.aura-showcase-reader .page-turn-btn{
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
}
.aura-showcase-reader .page-turn-btn:hover:not(:disabled){
    background-color: var(--nav-pill-bg);
    color: var(--text-primary);
}
.aura-showcase-reader .page-turn-btn:disabled{
    opacity: 0.35;
    cursor: default;
}
.aura-showcase-reader .paper-container{
    width: 100%;
    max-width: 780px;
    display: flex;
    justify-content: center;
    align-items: stretch;
    margin: 0 auto;
    min-height: calc(100% - 16px);
}
.aura-showcase-reader .paper-container:not(.spread-active) .book-paper-right{
    display: none !important;
}
.aura-showcase-reader .paper-container:not(.spread-active) .spread-spine{
    display: none !important;
}
.aura-showcase-reader .paper-container.spread-active{
    max-width: 1400px;
    background-color: var(--bg-paper);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}
.aura-showcase-reader .paper-container.spread-active .book-paper{
    flex: 1 1 0;
    min-width: 0;
    max-width: none;
    border: none;
    box-shadow: none;
    border-radius: 0;
    min-height: 100%;
    display: flex;
    flex-direction: column;
}
.aura-showcase-reader .paper-container.spread-active .book-paper-left{
    border-top-left-radius: 12px;
    border-bottom-left-radius: 12px;
    padding: 44px 38px 48px 52px;
}
.aura-showcase-reader .paper-container.spread-active .book-paper-right{
    border-top-right-radius: 12px;
    border-bottom-right-radius: 12px;
    padding: 44px 52px 48px 38px;
    display: flex;
}
.aura-showcase-reader .spread-spine{
    display: none;
    width: 14px;
    flex-shrink: 0;
    position: relative;
    user-select: none;
    background: linear-gradient(to right, 
        rgba(0, 0, 0, 0.03) 0%, 
        rgba(0, 0, 0, 0.10) 40%, 
        rgba(0, 0, 0, 0.20) 50%, 
        rgba(0, 0, 0, 0.10) 60%, 
        rgba(0, 0, 0, 0.03) 100%
    );
    box-shadow: inset 1px 0 2px rgba(0, 0, 0, 0.05), inset -1px 0 2px rgba(0, 0, 0, 0.05);
}
.aura-showcase-reader .paper-container.spread-active .spread-spine{
    display: block;
}
.aura-showcase-reader .reader-panel.paper-sepia .spread-spine{
    background: linear-gradient(to right, 
        rgba(100, 60, 20, 0.03) 0%, 
        rgba(100, 60, 20, 0.12) 40%, 
        rgba(80, 50, 15, 0.22) 50%, 
        rgba(100, 60, 20, 0.12) 60%, 
        rgba(100, 60, 20, 0.03) 100%
    );
    box-shadow: inset 1px 0 2px rgba(80, 50, 15, 0.08), inset -1px 0 2px rgba(80, 50, 15, 0.08);
}
.aura-showcase-reader.theme-dark .spread-spine,.aura-showcase-reader .reader-panel.paper-dark .spread-spine{
    background: linear-gradient(to right, 
        rgba(255, 255, 255, 0.02) 0%, 
        rgba(0, 0, 0, 0.45) 50%, 
        rgba(255, 255, 255, 0.02) 100%
    );
    box-shadow: inset 1px 0 2px rgba(0, 0, 0, 0.4), inset -1px 0 2px rgba(0, 0, 0, 0.4);
}
.aura-showcase-reader .spread-blank-page{
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    height: 100%;
    color: var(--text-muted);
    user-select: none;
    padding: 40px 20px;
    text-align: center;
    opacity: 0.65;
}
.aura-showcase-reader .spread-blank-page i{
    font-size: 38px;
    margin-bottom: 12px;
    color: var(--border-hover);
}
.aura-showcase-reader .spread-blank-title{
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-secondary);
}
.aura-showcase-reader .spread-blank-sub{
    font-size: 13px;
    color: var(--text-muted);
}
.aura-showcase-reader .book-paper{
    width: 100%;
    max-width: 780px;
    background-color: var(--bg-paper);
    color: var(--bg-paper-text);
    padding: 48px 56px;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    line-height: 1.85;
    font-size: 18px;
    transition: background-color 0.2s, color 0.2s;
    user-select: text;
}
.aura-showcase-reader .workspace-container:is(.layout-single, .layout-double) .reader-panel{
    background-color: var(--bg-paper);
}
.aura-showcase-reader .workspace-container:is(.layout-single, .layout-double) .paper-container,.aura-showcase-reader .workspace-container:is(.layout-single, .layout-double) .book-paper{
    background: transparent;
    border: none;
    border-radius: 0;
    box-shadow: none;
}
.aura-showcase-reader .workspace-container.layout-single .paper-container{
    max-width: 560px;
    margin: 0 auto;
}
.aura-showcase-reader .workspace-container.layout-double .paper-container{
    max-width: 1192px;
    margin: 0 auto;
}
.aura-showcase-reader .workspace-container:is(.layout-single, .layout-double) .book-paper{
    padding-left: 0;
    padding-right: 0;
}
.aura-showcase-reader .workspace-container.layout-double .paper-container.spread-active{
    gap: 72px;
}
.aura-showcase-reader .workspace-container:is(.layout-single, .layout-double) .spread-spine{
    display: none !important;
}
.aura-showcase-reader .book-paper h1,.aura-showcase-reader .book-paper h2,.aura-showcase-reader .book-paper h3{
    margin-bottom: 16px;
    line-height: 1.3;
    text-indent: 0 !important;
}
.aura-showcase-reader .book-paper p{
    margin-bottom: 18px;
    text-align: justify;
    text-indent: var(--book-text-indent, 2em);
}
.aura-showcase-reader .book-paper blockquote p,.aura-showcase-reader .book-paper .no-indent{
    text-indent: 0 !important;
}
.aura-showcase-reader .book-paper blockquote{
    border-left: 3px solid var(--primary);
    padding-left: 14px;
    margin: 16px 0;
    color: var(--text-secondary);
    font-style: italic;
}
.aura-showcase-reader mark.hl-yellow{
    background-color: var(--hl-yellow-bg);
    border-bottom: 2px solid var(--hl-yellow-border);
    border-radius: 2px;
    cursor: pointer;
    padding: 1px 2px;
}
.aura-showcase-reader mark.hl-green{
    background-color: var(--hl-green-bg);
    border-bottom: 2px solid var(--hl-green-border);
    border-radius: 2px;
    cursor: pointer;
    padding: 1px 2px;
}
.aura-showcase-reader mark.hl-active{
    outline: 2px solid var(--primary);
    outline-offset: 1px;
}
.aura-showcase-reader .annotation-token{
    user-select: text;
}
.aura-showcase-reader .annotation-token.has-highlight{
    background: var(--annotation-highlight-bg);
    border-radius: 2px;
}
.aura-showcase-reader .annotation-token.has-note{
    text-decoration-line: underline;
    text-decoration-color: #ef4444;
    text-decoration-thickness: 2px;
    text-underline-offset: 3px;
    text-decoration-skip-ink: none; 
}
.aura-showcase-reader .annotation-token.is-active{
    outline: 2px solid var(--primary);
    outline-offset: 1px;
}
.aura-showcase-reader .selection-tooltip{
    position: absolute;
    display: none;
    background-color: #1e293b;
    color: #ffffff;
    padding: 4px;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    z-index: 50;
    gap: 4px;
    align-items: center;
    transform: translate(-50%, -100%);
    margin-top: -8px;
}
.aura-showcase-reader .tooltip-btn{
    border: none;
    background: transparent;
    color: #f8fafc;
    padding: 5px 8px;
    font-size: 12px;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
}
.aura-showcase-reader .tooltip-btn:hover{
    background-color: rgba(255, 255, 255, 0.15);
}
.aura-showcase-reader .selection-tooltip [hidden]{
    display: none;
}
.aura-showcase-reader .tabs-header{
    display: flex;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-app);
    user-select: none;
}
.aura-showcase-reader .tab-btn{
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 6px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    border: none;
    border-bottom: 2px solid transparent;
    background: transparent;
    cursor: pointer;
    transition: var(--transition-fast);
}
.aura-showcase-reader .tab-btn:hover{
    color: var(--text-primary);
}
.aura-showcase-reader .tab-btn.active{
    color: var(--primary);
    border-bottom-color: var(--primary);
    background-color: var(--bg-panel);
    font-weight: 600;
}
.aura-showcase-reader .badge-count{
    background-color: var(--border-color);
    color: var(--text-secondary);
    font-size: 10px;
    padding: 1px 5px;
    border-radius: 10px;
    font-weight: 700;
}
.aura-showcase-reader .tab-btn.active .badge-count{
    background-color: var(--primary-light);
    color: var(--primary);
}
.aura-showcase-reader .tab-content{
    display: none;
    flex: 1;
    flex-direction: column;
    overflow-y: auto;
    padding: 16px;
}
.aura-showcase-reader .tab-content.active{
    display: flex;
}
.aura-showcase-reader .notes-toolbar{
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}
.aura-showcase-reader .notes-count-text{
    font-size: 12px;
    color: var(--text-muted);
}
.aura-showcase-reader .quick-note-box{
    background-color: var(--bg-app);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 10px;
    margin-bottom: 16px;
}
.aura-showcase-reader .quick-note-box textarea{
    width: 100%;
    border: none;
    background: transparent;
    resize: none;
    outline: none;
    font-size: 13px;
    color: var(--text-primary);
}
.aura-showcase-reader .quick-note-footer{
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 6px;
}
.aura-showcase-reader .hint-text{
    font-size: 11px;
    color: var(--text-muted);
}
.aura-showcase-reader .notes-list{
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.aura-showcase-reader .note-card{
    background-color: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--primary);
    border-radius: 6px;
    padding: 12px;
    transition: var(--transition-fast);
    cursor: pointer;
    box-shadow: var(--shadow-sm);
}
.aura-showcase-reader .note-card:hover{
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}
.aura-showcase-reader .note-card.hl-green-card{
    border-left-color: #22c55e;
}
.aura-showcase-reader .note-card.pure-highlight-card{
    border-left-color: #f59e0b;
    background-color: var(--bg-panel);
}
.aura-showcase-reader .note-card.is-focused{
    outline: 2px solid var(--primary);
    outline-offset: 1px;
}
.aura-showcase-reader #btn-toggle-show-highlights.active{
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--accent-color);
    border-color: var(--accent-color);
}
.aura-showcase-reader .note-card-header{
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
    font-size: 11px;
    color: var(--text-muted);
}
.aura-showcase-reader .note-loc-tag{
    background-color: var(--primary-light);
    color: var(--primary);
    padding: 1px 6px;
    border-radius: 4px;
    font-weight: 600;
}
.aura-showcase-reader .note-quote-text{
    font-size: 13px;
    color: var(--text-primary);
    font-style: italic;
    background-color: var(--bg-app);
    padding: 6px 8px;
    border-radius: 4px;
    margin-bottom: 6px;
    border-left: 2px solid var(--border-color);
}
.aura-showcase-reader .note-comment-text{
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}
.aura-showcase-reader .note-card-actions{
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 8px;
}
.aura-showcase-reader .empty-state{
    text-align: center;
    padding: 40px 16px;
    color: var(--text-muted);
}
.aura-showcase-reader .empty-state i{
    font-size: 36px;
    margin-bottom: 8px;
}
.aura-showcase-reader .empty-state p{
    font-size: 14px;
    font-weight: 500;
}
.aura-showcase-reader .empty-state small{
    font-size: 12px;
}
.aura-showcase-reader .settings-section{
    margin-bottom: 24px;
}
.aura-showcase-reader .settings-section h4{
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 6px;
}
.aura-showcase-reader .section-desc{
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 12px;
    line-height: 1.4;
}
.aura-showcase-reader .form-group{
    margin-bottom: 12px;
}
.aura-showcase-reader .form-group label{
    display: block;
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 4px;
    color: var(--text-secondary);
}
.aura-showcase-reader .export-buttons{
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.aura-showcase-reader .modal-overlay{
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 100;
    display: none;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(2px);
}
.aura-showcase-reader .modal-overlay.active{
    display: flex;
}
.aura-showcase-reader .modal-card{
    background-color: var(--bg-panel);
    width: 90%;
    max-width: 480px;
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
}
.aura-showcase-reader .modal-header{
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.aura-showcase-reader .modal-header h3{
    font-size: 15px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
}
.aura-showcase-reader .modal-body{
    padding: 16px;
}
.aura-showcase-reader .quote-preview{
    font-size: 13px;
    color: var(--text-secondary);
    background-color: var(--bg-app);
    padding: 10px 12px;
    border-left: 3px solid var(--primary);
    border-radius: 4px;
    margin-bottom: 12px;
    font-style: italic;
    max-height: 100px;
    overflow-y: auto;
}
.aura-showcase-reader .modal-body textarea{
    width: 100%;
    padding: 10px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-panel);
    color: var(--text-primary);
    outline: none;
    resize: vertical;
}
.aura-showcase-reader .modal-footer{
    padding: 12px 16px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    background-color: var(--bg-app);
}
.aura-showcase-reader .chapter-export-entry{ overflow: hidden; }
.aura-showcase-reader .chapter-export-options{ padding-bottom: 3px; }
.aura-showcase-reader .chapter-export-back{ display: flex; align-items: center; gap: 8px; width: 100%; min-height: 37px; padding: 6px 11px; border: 0; background: transparent; text-align: left; color: var(--text-secondary); font-size: 12px; border-radius: 6px; }
.aura-showcase-reader .chapter-export-back i{ font-size: 17px; }
.aura-showcase-reader .chapter-export-back:hover{ color: var(--primary); background: var(--bg-app); }
.aura-showcase-reader .chapter-export-range{ display: flex; align-items: center; justify-content: space-between; gap: 10px; width: calc(100% - 25px); min-height: 36px; padding: 7px 11px; margin-left: 25px; border: 0; border-radius: 6px; background: transparent; color: var(--text-primary); text-align: left; font-size: 13px; }
.aura-showcase-reader .chapter-export-range:hover{ color: var(--primary); background: var(--primary-light); }
.aura-showcase-reader.theme-dark .chapter-export-range:hover{ background: var(--bg-app); }
.aura-showcase-reader .chapter-export-range i{ font-size: 16px; color: var(--text-secondary); transition: transform 180ms ease; }
.aura-showcase-reader .chapter-export-range[aria-expanded="true"]{ color: var(--primary); }
.aura-showcase-reader .chapter-export-range[aria-expanded="true"] i{ transform: rotate(90deg); }
.aura-showcase-reader .chapter-export-list{ max-height: min(234px, 36dvh); overflow: auto; margin: 4px 0 0 25px; padding-left: 2px; border-left: 1px solid var(--border-color); scrollbar-width: thin; scrollbar-color: var(--border-color) transparent; }
.aura-showcase-reader .chapter-export-item{ display: flex; align-items: flex-start; gap: 9px; padding: 9px 11px; cursor: pointer; position: relative; }
.aura-showcase-reader .chapter-export-item:hover{ background: var(--bg-app); }
.aura-showcase-reader .chapter-export-item input{ margin: 4px 0 0; width: 15px; height: 15px; flex-shrink: 0; accent-color: var(--primary); cursor: pointer; }
.aura-showcase-reader .chapter-export-actions{ display: flex; justify-content: flex-end; align-items: center; gap: 8px; padding: 10px 3px 3px 25px; }
.aura-showcase-reader .chapter-export-item span{ min-width: 0; overflow-wrap: anywhere; font-size: 13px; line-height: 1.6; }
.aura-showcase-reader .chapter-export-entry [hidden]{ display: none !important; }
.aura-showcase-reader .chapter-export-entry button:disabled{ opacity: 0.5; cursor: default; }
@media (prefers-reduced-motion: reduce){.aura-showcase-reader .chapter-export-range i{ transition: none; }
}
.aura-showcase-reader .toast{
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background-color: #1e293b;
    color: #ffffff;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 13px;
    box-shadow: var(--shadow-lg);
    z-index: 200;
    opacity: 0;
    transition: var(--transition-smooth);
    pointer-events: none;
}
.aura-showcase-reader .toast.show{
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}
.aura-showcase-reader .shelf-panel{
    max-height: min(560px, calc(100vh - var(--header-height) - 24px));
    overflow: hidden;
}
.aura-showcase-reader .shelf-panel.open{
    display: flex;
    flex-direction: column;
}
.aura-showcase-reader .shelf-header{
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex: none;
    padding: 4px 8px;
}
.aura-showcase-reader .shelf-header h2{
    margin: 0;
    font-size: 14px;
    font-weight: 500;
}
.aura-showcase-reader .shelf-actions{
    display: flex;
    align-items: center;
    gap: 8px;
    flex: none;
    padding: 6px 0 10px;
    border-bottom: 1px solid var(--border-color);
}
.aura-showcase-reader .shelf-list{
    list-style: none;
    margin: 0;
    padding: 0;
    min-height: 0;
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-width: thin;
}
.aura-showcase-reader .shelf-entry{
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 3px 0;
}
.aura-showcase-reader .shelf-entry + .shelf-entry{ border-top: 1px solid var(--border-color); }
.aura-showcase-reader .shelf-book-open{
    display: flex;
    flex: 1;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
    padding: 9px 8px;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: var(--text-primary);
    text-align: left;
    font: inherit;
    cursor: pointer;
}
.aura-showcase-reader .shelf-book-open:hover{ background: var(--nav-pill-bg); }
.aura-showcase-reader .shelf-book-open:focus-visible{ outline: 2px solid var(--primary); outline-offset: -2px; }
.aura-showcase-reader .shelf-book-title{
    display: block;
    width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 13px;
    font-weight: 500;
}
.aura-showcase-reader .shelf-book-meta{ color: var(--text-muted); font-size: 11px; }
.aura-showcase-reader .shelf-book-delete{ flex: none; color: var(--text-muted); }
.aura-showcase-reader .shelf-book-delete:hover,.aura-showcase-reader .shelf-book-delete:focus-visible{ color: #d95353; }
.aura-showcase-reader .shelf-empty{ padding: 20px 8px; color: var(--text-muted); font-size: 12px; line-height: 1.7; }
.aura-showcase-reader .shelf-empty p{ margin: 0 0 4px; color: var(--text-secondary); font-size: 13px; }
.aura-showcase-reader .shelf-hint{
    flex: none;
    margin: 0;
    padding: 10px 8px 4px;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 11px;
    line-height: 1.6;
}
.aura-showcase-reader .workspace-container.immersive-notes{
    display: block;
    --reading-width: 560px;
    --reading-left: max(16px, calc((100% - 560px) / 2));
    --reading-right: var(--reading-left);
}
.aura-showcase-reader .immersive-notes .reader-panel{
    width: 100% !important;
    height: 100%;
    background: var(--bg-paper);
}
.aura-showcase-reader .immersive-notes .reader-viewport{
    padding: 32px var(--reading-right) 32px var(--reading-left);
    overflow-x: hidden;
}
.aura-showcase-reader .immersive-notes .paper-container,.aura-showcase-reader .immersive-notes.layout-scroll .paper-container{
    width: var(--reading-width);
    min-width: var(--reading-width);
    max-width: var(--reading-width);
    margin: 0;
    border: none;
    border-radius: 0;
    box-shadow: none;
    background: transparent;
}
.aura-showcase-reader .immersive-notes.layout-scroll .book-paper{
    padding: 28px 0 32px;
    border: none;
    border-radius: 0;
    box-shadow: none;
}
.aura-showcase-reader .immersive-notes .reader-pagination{ border-top: none; background: var(--bg-paper); }
.aura-showcase-reader .immersive-notes .tabs-header,.aura-showcase-reader .immersive-notes .notes-toolbar,.aura-showcase-reader .immersive-notes .empty-state{ display: none !important; }
.aura-showcase-reader .immersive-notes .notes-panel{
    display: block;
    position: absolute;
    inset: 0;
    z-index: 10;
    min-width: 0;
    width: 100%;
    height: 100%;
    border: none;
    background: transparent;
    pointer-events: none;
    overflow: hidden;
}
.aura-showcase-reader .immersive-notes .tab-content.active,.aura-showcase-reader .immersive-notes .notes-list{
    position: absolute;
    inset: 0;
    display: block;
    padding: 0;
    overflow: visible;
}
.aura-showcase-reader .immersive-notes .margin-notes-lane{
    position: absolute;
    overflow-y: auto;
    overflow-x: hidden;
    scrollbar-width: thin;
    scrollbar-gutter: stable;
    pointer-events: auto;
}
.aura-showcase-reader .immersive-notes .note-card{
    position: absolute;
    left: 0;
    width: 100%;
    padding: 0 6px;
    border: none;
    border-radius: 0;
    box-shadow: none;
    background: transparent;
    color: var(--margin-note-color, var(--text-secondary));
    transform: none;
    transition: color .15s;
    overflow-wrap: anywhere;
}
.aura-showcase-reader .immersive-notes .note-card:hover{
    box-shadow: none;
    transform: none;
    background: transparent;
}
.aura-showcase-reader .immersive-notes .note-card.is-focused{
    outline: none;
    color: var(--primary);
}
.aura-showcase-reader .immersive-notes .note-comment-text{
    color: inherit;
    font-size: 14px;
    line-height: 1.8;
    white-space: pre-wrap;
}
.aura-showcase-reader .immersive-notes .note-card-actions{ margin-top: 8px; gap: 8px; }
.aura-showcase-reader .immersive-notes .note-card-actions button{ color: var(--text-muted); }
.aura-showcase-reader .immersive-notes .note-card-actions button:hover,.aura-showcase-reader .immersive-notes .note-card-actions button:focus-visible{ color: var(--primary); }
.aura-showcase-reader .note-editor{
    display: block;
    width: 100%;
    min-height: 1.8em;
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    border: 0;
    border-radius: 0;
    outline: none;
    box-shadow: none;
    background: transparent;
    color: inherit;
    font: inherit;
    letter-spacing: inherit;
    text-align: inherit;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
    overflow: hidden;
    resize: none;
    caret-color: #d95353;
}
.aura-showcase-reader .note-card-actions[hidden]{ display: none; }
.aura-showcase-reader .immersive-notes .margin-highlight-label{ font-size: 12px; color: var(--text-muted); }
/* Presentation-only additions. Reading typography and annotation styles are original. */
.aura-showcase-reader{--pagination-height:0px;display:flex;flex-direction:column;width:100%;height:100%;overflow:hidden;background:#fff;color:#1d2129;font:14px system-ui,sans-serif;color-scheme:light}
.aura-showcase-reader>.workspace-container{height:auto;min-height:0;flex:1}
.aura-showcase-reader .immersive-notes .reader-viewport{overflow:hidden;padding-top:24px;padding-bottom:24px}
.aura-showcase-reader .paper-container{height:100%;min-height:0}
/* A single visible column lets the browser carry overflow onto whole lines. */
.aura-showcase-reader .book-paper{font-family:Literata,Georgia,serif!important;font-size:16px;line-height:1.8;--book-text-indent:2em;height:100%;padding-top:24px;padding-bottom:24px;column-count:1;column-fill:auto;column-gap:0;overflow:hidden}
.aura-showcase-reader .app-header button[data-preview-only]{cursor:default}
.aura-showcase-reader .app-header button[data-preview-only]:hover{background:transparent;color:inherit}
.demo-pointer{position:absolute;z-index:10000;left:0;top:0;width:24px;height:29px;pointer-events:none;filter:drop-shadow(0 2px 3px #0003);transition:transform .32s ease-in-out;opacity:0}
.demo-pointer.visible{opacity:1}.demo-pointer.selecting,.demo-pointer:not(.visible){transition:none}
.demo-pointer svg{width:24px;height:29px;display:block;transform:translate(-2px,-2px);transform-origin:2px 2px}
.demo-pointer.pressed svg{filter:drop-shadow(0 0 7px #3b82f6);scale:.9}
.aura-showcase-reader[data-demo-state="playing"],.aura-showcase-reader[data-demo-state="paused"]{cursor:default}
@media(prefers-reduced-motion:reduce){.demo-pointer{transition:none}}