* {
    box-sizing: border-box;
}

[hidden] {
    display: none !important;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    background: #f6f8fa;
    color: #24292e;
    -webkit-text-size-adjust: 100%;
}

.app {
    display: flex;
    flex-direction: column;
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
    position: relative;
    --topbar-height: 52px;
    --desktop-resizer-size: 18px;
    --desktop-panel-gap: 16px;
    --desktop-edge-padding: 12px;
    --content-track-width: 1120px;
    --left-sidebar-width: 320px;
    --right-sidebar-width: 300px;
    --fab-right: 18px;
}

.topbar {
    display: none;
    flex: 0 0 auto;
    height: var(--topbar-height);
    grid-template-columns: 48px minmax(0, 1fr) 48px;
    align-items: center;
    gap: 8px;
    padding: 0 10px;
    background: #fff;
    border-bottom: 1px solid #e1e4e8;
    position: relative;
    z-index: 40;
}

.topbar-side {
    display: flex;
    align-items: center;
    justify-content: center;
}

.topbar-btn {
    border: 1px solid #d0d7de;
    background: #fff;
    border-radius: 6px;
    width: 40px;
    height: 36px;
    padding: 0;
    font-size: 13px;
    color: #24292e;
    line-height: 1;
}

.topbar-btn[aria-pressed="true"] {
    background: #eaf2ff;
    border-color: #bfd6f8;
    color: #1f5faa;
}

.topbar-title {
    font-size: 14px;
    font-weight: 600;
    color: #57606a;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding: 0 8px;
    text-align: center;
}

.workspace {
    position: relative;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

.backend-status-banner {
    position: fixed;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 140;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    max-width: min(92vw, 760px);
    padding: 8px 12px;
    border: 1px solid #f2b8b5;
    border-radius: 999px;
    background: #fff2f1;
    color: #8c2f2b;
    font-size: 13px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.14);
}

.backend-status-banner[hidden] {
    display: none !important;
}

.backend-status-retry {
    border: 1px solid #d0d7de;
    border-radius: 999px;
    background: #ffffff;
    color: #24292e;
    font-size: 12px;
    line-height: 1;
    padding: 5px 10px;
    cursor: pointer;
}

.backend-status-retry:hover {
    background: #f3f4f6;
}

.mobile-backdrop {
    display: none;
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    z-index: 30;
}

.mobile-backdrop.show {
    display: block;
}

.app.layout-docked .sidebar {
    left: 0;
    right: auto;
    width: var(--left-sidebar-width);
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
}

.app.layout-docked .toc-sidebar {
    left: auto;
    right: 0;
    width: var(--right-sidebar-width);
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
}

.app.layout-docked.left-collapsed .sidebar {
    width: 0;
    min-width: 0;
    opacity: 0;
    pointer-events: none;
    overflow: hidden;
}

.app.layout-docked.right-collapsed .toc-sidebar {
    width: 0;
    min-width: 0;
    opacity: 0;
    pointer-events: none;
    overflow: hidden;
}

.app.layout-docked .left-resizer {
    display: block;
    left: calc(var(--left-sidebar-width) - (var(--desktop-resizer-size) / 2));
}

.app.layout-docked .right-resizer {
    display: block;
    left: auto;
    right: calc(var(--right-sidebar-width) - (var(--desktop-resizer-size) / 2));
}

.app.layout-docked .pane-resizer:hover,
.app.layout-docked .pane-resizer.active {
    background: rgba(143, 181, 230, 0.12);
}

.app.layout-docked.left-collapsed .left-resizer {
    left: 0;
}

.app.layout-docked.right-collapsed .right-resizer {
    right: 0;
}

.app.layout-mobile .sidebar,
.app.layout-mobile .toc-sidebar {
    width: min(84vw, 340px);
    min-width: 0;
    max-width: none;
    z-index: 35;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}

.app.layout-mobile .sidebar {
    left: 0;
    right: auto;
    transform: translateX(-100%);
}

.app.layout-mobile .toc-sidebar {
    left: auto;
    right: 0;
    transform: translateX(100%);
}

.app.layout-mobile .sidebar.open,
.app.layout-mobile .toc-sidebar.open {
    transform: translateX(0);
}

.app.layout-mobile .pane-resizer {
    display: none;
}

.app.layout-mobile .panel-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #d0d7de;
    background: #fff;
    border-radius: 6px;
    padding: 4px 8px;
    font-size: 12px;
    color: #57606a;
}

.sidebar {
    position: absolute;
    top: 0;
    bottom: 0;
    z-index: 20;
    width: var(--left-sidebar-width);
    min-width: 220px;
    max-width: 560px;
    background: #ffffff;
    border-right: 1px solid #e1e4e8;
    display: flex;
    flex-direction: column;
    transition: width 0.2s ease, border-color 0.2s ease, transform 0.25s ease, opacity 0.18s ease;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 18px;
    border-bottom: 1px solid #e1e4e8;
    font-weight: 600;
    font-size: 16px;
    background: #fff;
}

.sidebar-actions {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.sidebar-action-btn {
    border: 1px solid #d0d7de;
    background: #f8fafc;
    border-radius: 6px;
    width: 28px;
    height: 28px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #57606a;
    line-height: 1;
    cursor: pointer;
}

.sidebar-action-btn:hover {
    background: #eef2f7;
}

.sidebar-action-icon {
    width: 14px;
    height: 14px;
    stroke: currentColor;
    stroke-width: 1.7;
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
}

.tree-container {
    overflow: auto;
    padding: 12px 10px 24px 10px;
    flex: 1;
    scrollbar-width: thin;
    scrollbar-color: #c9d1db transparent;
}

.tree-node {
    margin: 2px 0;
}

.tree-label {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 8px;
    border-radius: 6px;
    cursor: pointer;
    user-select: none;
    font-size: 14px;
    line-height: 1.4;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tree-label.tree-file {
    gap: 8px;
}

.tree-file-name {
    min-width: 0;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tree-label:hover {
    background: #f3f4f6;
}

.tree-label.active {
    background: #0366d6;
    color: white;
}

.tree-children {
    margin-left: 18px;
    border-left: 1px dashed #d0d7de;
    padding-left: 10px;
    display: none;
}

.tree-children.expanded {
    display: block;
}

.folder-icon,
.file-icon {
    width: 16px;
    text-align: center;
    flex: 0 0 16px;
}

.file-icon {
    width: 18px;
    height: 18px;
    flex: 0 0 18px;
    border-radius: 5px;
    font-size: 10px;
    line-height: 18px;
    font-weight: 700;
    border: 1px solid #d0d7de;
    background: #f6f8fa;
    color: #57606a;
}

.file-icon-md {
    color: #1f5faa;
    background: #eaf2ff;
    border-color: #bfd6f8;
}

.file-icon-pdf {
    color: #b42318;
    background: #feeceb;
    border-color: #f5c3bf;
}

.file-icon-ipynb {
    color: #9a5b00;
    background: #fff3dc;
    border-color: #f1cf97;
}

.tree-label.active .file-icon {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.4);
}

.content {
    height: 100%;
    overflow: auto;
    padding: 24px;
    min-width: 0;
    position: relative;
    scrollbar-width: thin;
    scrollbar-color: #c9d1db transparent;
}

.content.pdf-content-mode {
    padding: 10px 12px;
}

.article-wrapper {
    width: min(100%, var(--content-track-width));
    max-width: none;
    margin: 0 auto;
    background: white;
    border: 1px solid #e1e4e8;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    padding: 40px;
    min-height: calc(100% - 24px);
}

.article-wrapper.pdf-mode {
    padding: 12px;
    min-height: 0;
}

.article-stats {
    color: #57606a;
    font-size: 13px;
}

.empty-hint {
    color: #57606a;
}

pre {
    background: #f6f8fa;
    padding: 16px;
    border-radius: 6px;
    overflow: auto;
    border: 1px solid #dfe2e5;
    position: relative;
    scrollbar-width: thin;
    scrollbar-color: #c9d1db transparent;
}

.copy-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    border: 1px solid #d0d7de;
    border-radius: 6px;
    background: #fff;
    color: #57606a;
    font-size: 12px;
    line-height: 1;
    padding: 5px 8px;
    cursor: pointer;
}

code {
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 85%;
}

#viewer :not(pre)>code {
    display: inline-block;
    padding: 0.08em 0.34em;
    border-radius: 4px;
    border: 0;
    background: #f1f4f8;
    color: #334155;
    font-size: 0.9em;
    font-weight: 400;
    line-height: 1.2;
}

#viewer pre code {
    display: block;
    padding: 0;
    border: 0;
    background: transparent;
    color: inherit;
    font-size: inherit;
    font-weight: inherit;
    line-height: inherit;
}

blockquote {
    padding: 0 1em;
    color: #6a737d;
    border-left: 0.25em solid #dfe2e5;
    margin: 0;
}

table {
    border-collapse: collapse;
    width: 100%;
    margin: 15px 0;
}

table th,
table td {
    border: 1px solid #dfe2e5;
    padding: 8px 12px;
}

table tr:nth-child(2n) {
    background-color: #f6f8fa;
}

img {
    max-width: 100%;
    height: auto;
}

#viewer img {
    display: block;
    margin-left: auto;
    margin-right: auto;
    cursor: zoom-in;
}

#viewer {
    overflow-wrap: break-word;
    word-break: break-word;
}

#viewer a {
    color: #0f62d6;
    text-decoration-color: rgba(15, 98, 214, 0.45);
    word-break: break-all;
}

#viewer a:visited {
    color: #6a4bc4;
    text-decoration-color: rgba(106, 75, 196, 0.4);
}

#viewer a:hover,
#viewer a:focus-visible {
    color: #0a4fb4;
    text-decoration-color: rgba(10, 79, 180, 0.85);
}

.pdf-viewer-frame {
    width: 100%;
    min-height: 420px;
    height: calc(100dvh - 60px);
    border: 1px solid #dfe2e5;
    border-radius: 6px;
    background: #fff;
}

.pdfjs-shell {
    border: 1px solid #dfe2e5;
    border-radius: 8px;
    background: #fff;
    overflow: hidden;
}

.pdfjs-toolbar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border-bottom: 1px solid #e1e4e8;
    background: #f8fafc;
}

.pdfjs-btn {
    border: 1px solid #d0d7de;
    border-radius: 6px;
    background: #ffffff;
    color: #24292e;
    font-size: 12px;
    line-height: 1;
    padding: 6px 10px;
    min-width: 40px;
}

.pdfjs-btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.pdfjs-info {
    font-size: 12px;
    color: #57606a;
    min-width: 74px;
    text-align: center;
}

.pdfjs-canvas-wrap {
    overflow: auto;
    max-height: calc(100dvh - 130px);
    padding: 10px;
    background: #f6f8fa;
}

.pdfjs-page+.pdfjs-page {
    margin-top: 12px;
}

.pdfjs-page {
    position: relative;
    width: max-content;
    margin: 0 auto;
}

.pdfjs-canvas {
    display: block;
    margin: 0 auto;
    background: #fff;
    border: 1px solid #d0d7de;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.pdfjs-text-layer {
    position: absolute;
    inset: 0;
    overflow: hidden;
    line-height: 1;
}

.pdfjs-text-layer>span {
    position: absolute;
    transform-origin: 0% 0%;
    white-space: pre;
    color: transparent;
    cursor: text;
    user-select: text;
}

.pdf-native-actions {
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
    justify-content: flex-end;
}

.pdf-mode-switch {
    margin-right: auto;
    display: inline-flex;
    gap: 6px;
}

.pdf-mode-btn {
    border: 1px solid #d0d7de;
    border-radius: 999px;
    background: #ffffff;
    color: #57606a;
    font-size: 12px;
    line-height: 1;
    padding: 6px 10px;
}

.pdf-mode-btn.active {
    color: #0b5bd3;
    background: #eaf2ff;
    border-color: #bcd5fb;
}

.pdf-native-open {
    display: inline-flex;
    align-items: center;
    border: 1px solid #d0d7de;
    border-radius: 999px;
    padding: 6px 12px;
    font-size: 12px;
    line-height: 1;
    text-decoration: none;
    background: #fff;
    color: #24292e;
}

.pdf-native-open:hover {
    background: #f3f4f6;
}

.table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 14px 0;
    border: 1px solid #dfe2e5;
    border-radius: 6px;
    background: #fff;
    scrollbar-width: thin;
    scrollbar-color: #c9d1db transparent;
}

.table-scroll table {
    margin: 0;
    min-width: 520px;
    border: 0;
}

.error {
    color: #cf222e;
    font-weight: 600;
    white-space: pre-wrap;
}

.fab-stack {
    position: fixed;
    right: var(--fab-right);
    bottom: 20px;
    z-index: 60;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.fab-btn {
    border: 1px solid #c9d1d9;
    background: #f8fafc;
    color: #1f2937;
    border-radius: 999px;
    padding: 10px 14px;
    font-size: 14px;
    font-weight: 600;
    line-height: 1;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.14);
    min-width: 48px;
}

.fab-btn:hover {
    background: #eef2f7;
}

.search-overlay {
    position: fixed;
    inset: 0;
    z-index: 120;
    background: rgba(15, 23, 42, 0.22);
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 10vh 16px 16px;
}

.search-panel {
    width: min(760px, 94vw);
    height: min(72vh, 720px);
    background: #ffffff;
    border: 1px solid #d0d7de;
    border-radius: 12px;
    box-shadow: 0 20px 48px rgba(0, 0, 0, 0.24);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.search-input {
    width: 100%;
    border: 0;
    border-bottom: 1px solid #eaeef2;
    padding: 14px 16px;
    font-size: 15px;
    line-height: 1.35;
    color: #1f2328;
    background: #fff;
}

.search-input:focus {
    outline: none;
}

.search-results {
    overflow: auto;
    padding: 8px;
    flex: 1;
}

.search-section+.search-section {
    margin-top: 10px;
}

.search-section-title {
    position: sticky;
    top: 0;
    z-index: 1;
    padding: 6px 8px;
    font-size: 12px;
    font-weight: 700;
    color: #57606a;
    background: #ffffff;
}

.search-overlay[hidden] {
    display: none !important;
}

.search-result-item {
    padding: 8px 10px;
    border-radius: 8px;
    cursor: pointer;
}

.search-result-item:hover {
    background: #f3f4f6;
}

.search-result-title {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: #24292e;
    margin-bottom: 3px;
}

.search-hit-tag {
    margin-left: auto;
    font-size: 11px;
    color: #6b7280;
}

.search-result-snippet {
    margin-left: 22px;
    font-size: 12px;
    line-height: 1.4;
    color: #57606a;
    overflow: hidden;
    max-height: calc(1.4em * 2);
}

.search-result-snippet mark {
    background: #fff2a8;
    color: #1f2328;
    border-radius: 3px;
    padding: 0 1px;
}

.notebook-root {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.notebook-cell {
    border: 1px solid #e1e4e8;
    border-radius: 8px;
    padding: 12px 14px;
    background: #fff;
}

.notebook-code pre {
    margin: 8px 0 0 0;
}

.nb-output {
    margin-top: 8px;
}

.nb-output-math {
    overflow-x: auto;
    overflow-y: hidden;
    padding-bottom: 2px;
}

.nb-output-markdown {
    margin-top: 8px;
}

.nb-output-image {
    margin-top: 8px;
}

.nb-output-image-el {
    display: block;
    max-width: 100%;
    height: auto;
    border: 1px solid #d0d7de;
    border-radius: 6px;
    background: #fff;
    cursor: zoom-in;
}

.image-preview-overlay {
    position: fixed;
    inset: 0;
    z-index: 170;
    background: rgba(15, 23, 42, 0.72);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.image-preview-overlay[hidden] {
    display: none !important;
}

.image-preview-toolbar {
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border-radius: 999px;
    border: 1px solid #d0d7de;
    background: rgba(255, 255, 255, 0.95);
}

.image-preview-toolbar button {
    border: 1px solid #d0d7de;
    border-radius: 999px;
    background: #ffffff;
    color: #1f2937;
    font-size: 13px;
    line-height: 1;
    min-width: 34px;
    height: 30px;
    padding: 0 10px;
    cursor: pointer;
}

.image-preview-zoom-label {
    min-width: 52px;
    text-align: center;
    font-size: 12px;
    color: #374151;
    font-weight: 600;
}

.image-preview-dialog {
    width: min(96vw, 1500px);
    height: min(92vh, 1100px);
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.image-preview-img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 8px;
    background: #ffffff;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.28);
    pointer-events: auto;
    transform-origin: center center;
    transition: transform 0.08s linear;
}

.image-preview-close {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 1;
    border: 1px solid #d0d7de;
    border-radius: 999px;
    background: #ffffff;
    color: #1f2937;
    font-size: 15px;
    line-height: 1;
    width: 34px;
    height: 34px;
    padding: 0;
    cursor: pointer;
}

.nb-cell-label {
    font-size: 12px;
    color: #57606a;
    font-weight: 600;
}

#viewer .mjx-container[jax="CHTML"][display="true"] {
    display: block;
}

.math-scroll {
    overflow-x: auto;
    overflow-y: hidden;
    max-width: 100%;
    padding-bottom: 2px;
}

.math-scroll>.mjx-container[jax="CHTML"][display="true"] {
    width: max-content;
    min-width: 100%;
}

.page-footer {
    width: min(100%, var(--content-track-width));
    max-width: none;
    margin: 14px auto 6px;
    padding: 10px 14px;
    border-top: 1px solid #e1e4e8;
    color: #57606a;
    font-size: 12px;
    line-height: 1.45;
    text-align: center;
    overflow-wrap: anywhere;
}

.page-footer a {
    color: inherit;
    text-decoration-color: rgba(87, 96, 106, 0.5);
}

.page-footer a:hover,
.page-footer a:focus-visible {
    color: #24292e;
    text-decoration-color: rgba(36, 41, 46, 0.8);
}

.toc-sidebar {
    position: absolute;
    top: 0;
    bottom: 0;
    z-index: 20;
    width: var(--right-sidebar-width);
    min-width: 220px;
    max-width: 520px;
    background: #ffffff;
    border-left: 1px solid #e1e4e8;
    display: flex;
    flex-direction: column;
    transition: width 0.2s ease, border-color 0.2s ease, transform 0.25s ease, opacity 0.18s ease;
}

.pane-resizer {
    width: var(--desktop-resizer-size);
    position: absolute;
    top: 0;
    bottom: 0;
    z-index: 25;
    cursor: col-resize;
    background: transparent;
    touch-action: none;
    transition: background 0.18s ease;
    display: none;
}

.toc-header {
    padding: 16px 18px;
    border-bottom: 1px solid #e1e4e8;
    font-weight: 600;
    font-size: 16px;
    background: #fff;
}

.toc-container {
    overflow: auto;
    padding: 12px 10px 24px 10px;
    flex: 1;
    scrollbar-width: thin;
    scrollbar-color: #c9d1db transparent;
}

.tree-container::-webkit-scrollbar,
.toc-container::-webkit-scrollbar,
.content::-webkit-scrollbar,
pre::-webkit-scrollbar,
.table-scroll::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.tree-container::-webkit-scrollbar-thumb,
.toc-container::-webkit-scrollbar-thumb,
.content::-webkit-scrollbar-thumb,
pre::-webkit-scrollbar-thumb,
.table-scroll::-webkit-scrollbar-thumb {
    background: #c9d1db;
    border-radius: 999px;
    border: 2px solid transparent;
    background-clip: padding-box;
}

.tree-container::-webkit-scrollbar-track,
.toc-container::-webkit-scrollbar-track,
.content::-webkit-scrollbar-track,
pre::-webkit-scrollbar-track,
.table-scroll::-webkit-scrollbar-track {
    background: transparent;
}

.toc-item {
    display: block;
    padding: 5px 8px;
    margin: 2px 0;
    border-radius: 6px;
    color: #24292e;
    text-decoration: none;
    font-size: 13px;
    line-height: 1.5;
    word-break: break-word;
}

.toc-item:hover {
    background: #f3f4f6;
}

.toc-item.active {
    background: #e7f3ff;
    color: #0366d6;
    font-weight: 600;
}

.toc-level-1 {
    padding-left: 8px;
}

.toc-level-2 {
    padding-left: 20px;
}

.toc-level-3 {
    padding-left: 32px;
}

.toc-level-4 {
    padding-left: 44px;
}

.toc-level-5 {
    padding-left: 56px;
}

.toc-level-6 {
    padding-left: 68px;
}

#viewer h1,
#viewer h2,
#viewer h3,
#viewer h4,
#viewer h5,
#viewer h6 {
    scroll-margin-top: 20px;
}

.panel-close {
    display: none;
}

@media (max-width: 1375px) {
    .app {
        --fab-right: calc(18px + env(safe-area-inset-right, 0px));
    }

    .topbar {
        display: grid;
    }

    .content {
        padding: 12px;
    }

    .content.pdf-content-mode {
        padding: 6px;
    }

    .article-wrapper {
        min-height: 100%;
        padding: 16px;
        border-radius: 6px;
        transform: none;
    }

    .article-wrapper.pdf-mode {
        padding: 8px;
    }

    .tree-label {
        padding: 9px 8px;
        font-size: 15px;
    }

    .toc-item {
        padding: 8px 8px;
        font-size: 14px;
    }

    pre {
        padding: 12px;
        font-size: 13px;
        line-height: 1.45;
        -webkit-overflow-scrolling: touch;
    }

    .copy-btn {
        top: 6px;
        right: 6px;
        font-size: 11px;
        padding: 4px 7px;
    }

    code {
        font-size: 82%;
    }

    .table-scroll table {
        min-width: 420px;
    }

    .pdf-viewer-frame {
        min-height: 360px;
        height: calc(100dvh - 84px);
    }

    table th,
    table td {
        padding: 7px 10px;
        font-size: 13px;
    }

    .toc-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .fab-stack {
        bottom: calc(16px + env(safe-area-inset-bottom, 0px));
    }
}