/* GitBook-compatible base styles */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #333;
}

/* Font family classes */
.font-family-0 { font-family: Georgia, serif; }
.font-family-1 { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }

/* Book layout */
.book {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.book-summary {
    width: 300px;
    min-width: 300px;
    background: #fafafa;
    border-right: 1px solid #e8e8e8;
    overflow-y: auto;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
}

.book-summary nav {
    padding: 20px 0;
}

/* Search */
.search-wrapper {
    padding: 15px;
    border-bottom: 1px solid #e8e8e8;
    position: relative;
}

.search-input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #e8e8e8;
    border-radius: 4px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
}

.search-input:focus {
    border-color: #008cff;
}

.search-input::placeholder {
    color: #999;
}

.search-results {
    position: absolute;
    top: 100%;
    left: 15px;
    right: 15px;
    background: #fff;
    border: 1px solid #e8e8e8;
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    max-height: 400px;
    overflow-y: auto;
    z-index: 200;
    display: none;
}

.search-results.visible {
    display: block;
}

.search-result-item {
    display: block;
    padding: 10px 12px;
    border-bottom: 1px solid #f0f0f0;
    text-decoration: none;
    color: #333;
    transition: background 0.2s;
}

.search-result-item:last-child {
    border-bottom: none;
}

.search-result-item:hover {
    background: #f5f5f5;
}

.search-result-title {
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 4px;
}

.search-result-snippet {
    font-size: 12px;
    color: #666;
    line-height: 1.4;
}

.search-result-item mark {
    background: #fff3cd;
    padding: 0 2px;
    border-radius: 2px;
}

.search-no-results {
    padding: 20px;
    text-align: center;
    color: #666;
    font-size: 14px;
}

.book-summary .summary {
    list-style: none;
    margin: 0;
    padding: 0;
}

.book-summary .summary li {
    list-style: none;
}

.book-summary .summary li.chapter {
    margin: 0;
}

.book-summary .summary li.chapter a,
.book-summary .summary li.chapter .chapter-title {
    display: block;
    padding: 8px 15px 8px 20px;
    color: #364149;
    text-decoration: none;
    font-size: 14px;
    border-left: 3px solid transparent;
}

.book-summary .summary li.chapter a:hover {
    background: #f0f0f0;
    color: #008cff;
}

.book-summary .summary li.chapter.active > a {
    background: #e8e8e8;
    border-left-color: #008cff;
    color: #008cff;
    font-weight: 600;
}

.book-summary .summary li.chapter .chapter-title {
    color: #364149;
    cursor: pointer;
}

/* Nested chapters */
.book-summary .summary .articles {
    list-style: none;
    margin: 0;
    padding: 0;
}

.book-summary .summary .articles li.chapter a,
.book-summary .summary .articles li.chapter .chapter-title {
    padding-left: 35px;
}

.book-summary .summary .articles .articles li.chapter a,
.book-summary .summary .articles .articles li.chapter .chapter-title {
    padding-left: 50px;
}

.book-summary .summary .articles .articles .articles li.chapter a,
.book-summary .summary .articles .articles .articles li.chapter .chapter-title {
    padding-left: 65px;
}

.book-summary .summary .articles .articles .articles .articles li.chapter a,
.book-summary .summary .articles .articles .articles .articles li.chapter .chapter-title {
    padding-left: 80px;
}

.book-summary .summary .articles .articles .articles .articles .articles li.chapter a,
.book-summary .summary .articles .articles .articles .articles .articles li.chapter .chapter-title {
    padding-left: 95px;
}

/* Part titles */
.book-summary .summary li.part-title {
    margin-top: 20px;
    padding: 5px 15px;
}

.book-summary .summary li.part-title span {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    color: #939da3;
}

/* Dividers */
.book-summary .summary li.divider {
    height: 1px;
    margin: 10px 15px;
    background: #e8e8e8;
}

/* Main content */
.book-body {
    margin-left: 300px;
    flex: 1;
    min-width: 0;
}

.body-inner {
    min-height: 100vh;
    position: relative;
}

/* Page navigation arrows */
.page-nav {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.05);
    color: #666;
    text-decoration: none;
    border-radius: 4px;
    transition: background 0.2s, color 0.2s;
    z-index: 50;
}

.page-nav:hover {
    background: rgba(0, 0, 0, 0.1);
    color: #333;
}

.page-nav.prev {
    left: 310px;
}

.page-nav.next {
    right: 10px;
}

.page-nav svg {
    width: 24px;
    height: 24px;
}

@media (max-width: 768px) {
    .page-nav {
        width: 36px;
        height: 50px;
        top: auto;
        bottom: 20px;
        transform: none;
    }
    .page-nav.prev {
        left: 10px;
    }
    .page-nav.next {
        right: 10px;
    }
}

/* Loading state for navigation */
body.loading .page-nav {
    pointer-events: none;
    opacity: 0.5;
}

body.loading .markdown-section {
    opacity: 0.6;
    transition: opacity 0.15s;
}

.page-wrapper {
    max-width: 100%;
}

.page-inner {
    max-width: none;
    margin: 0;
    padding: 40px 60px;
}

/* Markdown content */
.markdown-section {
    font-size: 16px;
    line-height: 1.7;
}

.markdown-section h1 {
    font-size: 2em;
    margin: 0 0 1em;
    padding-bottom: 0.3em;
    border-bottom: 1px solid #eee;
}

.markdown-section h2 {
    font-size: 1.5em;
    margin: 1.5em 0 0.5em;
    padding-bottom: 0.3em;
    border-bottom: 1px solid #eee;
}

.markdown-section h3 {
    font-size: 1.25em;
    margin: 1.5em 0 0.5em;
}

.markdown-section h4, .markdown-section h5, .markdown-section h6 {
    font-size: 1em;
    margin: 1.5em 0 0.5em;
}

.markdown-section p {
    margin: 0 0 1em;
}

.markdown-section a {
    color: #4183c4;
    text-decoration: none;
}

.markdown-section a:hover {
    text-decoration: underline;
}

.markdown-section code {
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;
    font-size: 0.9em;
    background: #f6f8fa;
    padding: 0.2em 0.4em;
    border-radius: 3px;
}

.markdown-section pre {
    background: #f6f8fa;
    border-radius: 6px;
    padding: 16px;
    overflow-x: auto;
    margin: 0 0 1em;
}

.markdown-section pre code {
    background: none;
    padding: 0;
    font-size: 0.85em;
    line-height: 1.5;
}

/* Tables */
.markdown-section table {
    border-collapse: collapse;
    width: 100%;
    margin: 0 0 1em;
    display: block;
    overflow-x: auto;
}

.markdown-section table th,
.markdown-section table td {
    border: 1px solid #dfe2e5;
    padding: 8px 12px;
    text-align: left;
}

.markdown-section table th {
    background: #f6f8fa;
    font-weight: 600;
}

.markdown-section table tr:nth-child(even) {
    background: #f8f8f8;
}

/* Images */
.markdown-section img {
    max-width: 100%;
    height: auto;
}

/* Lists */
.markdown-section ul,
.markdown-section ol {
    margin: 0 0 1em;
    padding-left: 2em;
}

.markdown-section li {
    margin: 0.25em 0;
}

/* Blockquotes */
.markdown-section blockquote {
    margin: 0 0 1em;
    padding: 0 1em;
    color: #6a737d;
    border-left: 4px solid #dfe2e5;
}

/* Mermaid diagrams */
.mermaid {
    text-align: center;
    margin: 1em 0;
}

/* WSD (js-sequence-diagrams) */
.wsd {
    text-align: center;
    margin: 1em 0;
    overflow-x: auto;
}

.wsd svg {
    max-width: 100%;
    height: auto;
}

/* Back to top button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 40px;
    height: 40px;
    background: #008cff;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: #0070cc;
}

/* Collapsible chapters */
.expandable > a::before,
.expandable > .chapter-title::before {
    content: "▸";
    display: inline-block;
    margin-right: 5px;
}

.expandable.expanded > a::before,
.expandable.expanded > .chapter-title::before {
    transform: rotate(90deg);
}

.expandable:not(.expanded) > .articles {
    display: none;
}

/* Disable all transitions in sidebar to prevent jitter */
.book-summary * {
    transition: none !important;
}

/* Sidebar toggle button - BASE STYLES */
.sidebar-toggle {
    position: fixed;
    top: 10px;
    left: 310px;
    width: 36px;
    height: 36px;
    background: #fff;
    border: 1px solid #e8e8e8;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 101;
    transition: left 0.3s, transform 0.3s;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.sidebar-toggle:hover {
    background: #f5f5f5;
}

.sidebar-toggle svg {
    color: #666;
}

/* Sidebar hidden state */
.book.sidebar-hidden .book-summary {
    transform: translateX(-100%);
}

.book.sidebar-hidden .book-body {
    margin-left: 0;
}

.book.sidebar-hidden .sidebar-toggle {
    left: 10px;
}

/* Smooth transitions - only when toggling sidebar */
.book.sidebar-toggling .book-summary {
    transition: transform 0.3s ease;
}

.book.sidebar-toggling .book-body {
    transition: margin-left 0.3s ease;
}

/* Responsive - MUST come after base styles */
@media (max-width: 1024px) {
    .book-summary {
        width: 250px;
        min-width: 250px;
    }
    .book-body {
        margin-left: 250px;
    }
    .sidebar-toggle {
        left: 260px;
    }
    .book.sidebar-hidden .sidebar-toggle {
        left: 10px;
    }
}

@media (max-width: 768px) {
    .book-summary {
        transform: translateX(-100%);
        transition: transform 0.3s;
        width: 280px;
        min-width: 280px;
        padding-top: 50px; /* Space for hamburger button */
    }
    .book-summary.open {
        transform: translateX(0);
    }
    .book-body {
        margin-left: 0;
    }
    .page-inner {
        padding: 20px;
        padding-top: 60px; /* Space for fixed header */
    }
    /* Mobile: hamburger button always in top-left */
    .sidebar-toggle {
        left: 10px !important;
        top: 10px;
        z-index: 200;
    }
    /* Overlay when sidebar is open */
    .book-summary.open::after {
        content: "";
        position: fixed;
        top: 0;
        left: 280px;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.3);
        z-index: 99;
    }
}

/* Page Table of Contents (Right sidebar) */
.page-toc {
    position: fixed;
    right: 20px;
    top: 80px;
    width: 220px;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    background: #fff;
    border-left: 1px solid #e8e8e8;
    padding: 15px;
    z-index: 50;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.page-toc .toc-header {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    color: #939da3;
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid #e8e8e8;
}

.page-toc .toc-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.page-toc .toc-list li {
    margin: 0;
    line-height: 1.4;
}

.page-toc .toc-list li a {
    display: block;
    padding: 4px 0;
    color: #666;
    text-decoration: none;
    font-size: 13px;
    transition: color 0.2s;
}

.page-toc .toc-list li a:hover {
    color: #008cff;
}

.page-toc .toc-list li.active a {
    color: #008cff;
    font-weight: 600;
}

/* TOC indentation levels */
.page-toc .toc-h2 {
    padding-left: 0;
}

.page-toc .toc-h3 {
    padding-left: 12px;
}

.page-toc .toc-h4 {
    padding-left: 24px;
}

/* TOC toggle button */
.toc-toggle {
    position: fixed;
    top: 10px;
    right: 250px;
    width: 36px;
    height: 36px;
    background: #fff;
    border: 1px solid #e8e8e8;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 101;
    transition: right 0.3s ease;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.toc-toggle:hover {
    background: #f5f5f5;
}

.toc-toggle svg {
    color: #666;
}

/* TOC hidden state */
.book.toc-hidden .page-toc {
    transform: translateX(100%);
    opacity: 0;
    pointer-events: none;
}

.book.toc-hidden .toc-toggle {
    right: 10px;
}

/* Adjust prev button when sidebar is hidden */
.book.sidebar-hidden .page-nav.prev {
    left: 10px;
}

/* Adjust content when TOC is visible */
.book:not(.toc-hidden) .page-wrapper {
    margin-right: 260px;
}

.book:not(.toc-hidden) .page-nav.next {
    right: 260px;
}

/* Hide TOC on mobile */
@media (max-width: 768px) {
    .page-toc,
    .toc-toggle {
        display: none !important;
    }
    .book:not(.toc-hidden) .page-nav.next {
        right: 10px;
    }
}


/* ==========================================================================
   Font Settings Plugin
   ========================================================================== */

/* Toolbar container */
.fontsettings-toolbar {
    position: fixed;
    top: 10px;
    right: 60px;
    display: flex;
    align-items: center;
    gap: 4px;
    background: #fff;
    border: 1px solid #e8e8e8;
    border-radius: 4px;
    padding: 4px 8px;
    z-index: 101;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

/* When TOC toggle is visible, adjust position */
.book:not(.toc-hidden) .fontsettings-toolbar {
    right: 300px;
}

.fontsettings-toolbar .fontsettings-separator {
    width: 1px;
    height: 20px;
    background: #e8e8e8;
    margin: 0 4px;
}

.fontsettings-toolbar button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: 3px;
    color: #666;
    font-size: 14px;
    font-weight: 600;
    transition: background 0.2s, color 0.2s;
}

.fontsettings-toolbar button:hover:not(.disabled) {
    background: #f0f0f0;
    color: #333;
}

.fontsettings-toolbar button.disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.fontsettings-toolbar button.active {
    background: #008cff;
    color: white;
}

/* Font size buttons */
.fontsettings-decrease {
    font-size: 12px !important;
}

.fontsettings-increase {
    font-size: 16px !important;
}

/* Theme buttons */
.fontsettings-theme[data-theme="white"] {
    background: #fff !important;
    border: 1px solid #ccc !important;
}

.fontsettings-theme[data-theme="sepia"] {
    background: #f4ecd8 !important;
    border: 1px solid #d4c9b0 !important;
}

.fontsettings-theme[data-theme="night"] {
    background: #1c1c1c !important;
    border: 1px solid #3a3a3a !important;
}

.fontsettings-theme.active {
    box-shadow: 0 0 0 2px #008cff !important;
}

/* ==========================================================================
   Theme: White (default)
   ========================================================================== */
.book.theme-white {
    /* Default styles - no changes needed */
}

/* ==========================================================================
   Theme: Sepia
   ========================================================================== */
.book.theme-sepia {
    background: #f4ecd8;
}

.book.theme-sepia .book-summary {
    background: #ede6d4;
    border-right-color: #d4c9b0;
}

.book.theme-sepia .book-summary .summary li.chapter a,
.book.theme-sepia .book-summary .summary li.chapter .chapter-title {
    color: #5f4b32;
}

.book.theme-sepia .book-summary .summary li.chapter a:hover {
    background: #e5dcc8;
    color: #704214;
}

.book.theme-sepia .book-summary .summary li.chapter.active > a {
    background: #ddd4c0;
    border-left-color: #704214;
    color: #704214;
}

.book.theme-sepia .book-summary .summary li.divider {
    background: #d4c9b0;
}

.book.theme-sepia .search-wrapper {
    border-bottom-color: #d4c9b0;
}

.book.theme-sepia .search-input {
    background: #f4ecd8;
    border-color: #d4c9b0;
    color: #5f4b32;
}

.book.theme-sepia .search-results {
    background: #f4ecd8;
    border-color: #d4c9b0;
}

.book.theme-sepia .search-result-item {
    color: #5f4b32;
    border-bottom-color: #e5dcc8;
}

.book.theme-sepia .search-result-item:hover {
    background: #ede6d4;
}

.book.theme-sepia .markdown-section {
    color: #5f4b32;
}

.book.theme-sepia .markdown-section a {
    color: #704214;
}

.book.theme-sepia .markdown-section h1,
.book.theme-sepia .markdown-section h2 {
    border-bottom-color: #d4c9b0;
}

.book.theme-sepia .markdown-section code {
    background: #ebe4d0;
}

.book.theme-sepia .markdown-section pre {
    background: #ebe4d0;
}

.book.theme-sepia .markdown-section table th {
    background: #ebe4d0;
}

.book.theme-sepia .markdown-section table th,
.book.theme-sepia .markdown-section table td {
    border-color: #d4c9b0;
}

.book.theme-sepia .markdown-section table tr:nth-child(even) {
    background: #f0e8d8;
}

.book.theme-sepia .markdown-section blockquote {
    color: #7a6a52;
    border-left-color: #d4c9b0;
}

.book.theme-sepia .page-nav {
    background: rgba(95, 75, 50, 0.1);
    color: #7a6a52;
}

.book.theme-sepia .page-nav:hover {
    background: rgba(95, 75, 50, 0.2);
    color: #5f4b32;
}

.book.theme-sepia .sidebar-toggle,
.book.theme-sepia .toc-toggle {
    background: #f4ecd8;
    border-color: #d4c9b0;
}

.book.theme-sepia .sidebar-toggle:hover,
.book.theme-sepia .toc-toggle:hover {
    background: #ede6d4;
}

.book.theme-sepia .sidebar-toggle svg,
.book.theme-sepia .toc-toggle svg {
    color: #7a6a52;
}

.book.theme-sepia .page-toc {
    background: #f4ecd8;
    border-left-color: #d4c9b0;
}

.book.theme-sepia .page-toc .toc-header {
    color: #7a6a52;
    border-bottom-color: #d4c9b0;
}

.book.theme-sepia .page-toc .toc-list li a {
    color: #7a6a52;
}

.book.theme-sepia .page-toc .toc-list li a:hover {
    color: #704214;
}

.book.theme-sepia .page-toc .toc-list li.active a {
    color: #704214;
}

.book.theme-sepia .fontsettings-toolbar {
    background: #f4ecd8;
    border-color: #d4c9b0;
}

.book.theme-sepia .fontsettings-toolbar button {
    color: #7a6a52;
}

.book.theme-sepia .fontsettings-toolbar button:hover:not(.disabled) {
    background: #ede6d4;
    color: #5f4b32;
}

.book.theme-sepia .fontsettings-separator {
    background: #d4c9b0;
}

.book.theme-sepia .back-to-top {
    background: #704214;
}

.book.theme-sepia .back-to-top:hover {
    background: #5a3510;
}

/* ==========================================================================
   Theme: Night
   ========================================================================== */
.book.theme-night {
    background: #1c1c1c;
}

.book.theme-night .book-summary {
    background: #262626;
    border-right-color: #3a3a3a;
}

.book.theme-night .book-summary .summary li.chapter a,
.book.theme-night .book-summary .summary li.chapter .chapter-title {
    color: #c8c8c8;
}

.book.theme-night .book-summary .summary li.chapter a:hover {
    background: #333;
    color: #6cb2eb;
}

.book.theme-night .book-summary .summary li.chapter.active > a {
    background: #333;
    border-left-color: #6cb2eb;
    color: #6cb2eb;
}

.book.theme-night .book-summary .summary li.part-title span {
    color: #808080;
}

.book.theme-night .book-summary .summary li.divider {
    background: #3a3a3a;
}

.book.theme-night .search-wrapper {
    border-bottom-color: #3a3a3a;
}

.book.theme-night .search-input {
    background: #1c1c1c;
    border-color: #3a3a3a;
    color: #c8c8c8;
}

.book.theme-night .search-input::placeholder {
    color: #666;
}

.book.theme-night .search-results {
    background: #262626;
    border-color: #3a3a3a;
    box-shadow: 0 4px 12px rgba(0,0,0,0.5);
}

.book.theme-night .search-result-item {
    color: #c8c8c8;
    border-bottom-color: #3a3a3a;
}

.book.theme-night .search-result-item:hover {
    background: #333;
}

.book.theme-night .search-result-title {
    color: #e8e8e8;
}

.book.theme-night .search-result-snippet {
    color: #999;
}

.book.theme-night .search-result-item mark {
    background: #5a4a00;
    color: #fff;
}

.book.theme-night .markdown-section {
    color: #c8c8c8;
}

.book.theme-night .markdown-section a {
    color: #6cb2eb;
}

.book.theme-night .markdown-section h1,
.book.theme-night .markdown-section h2,
.book.theme-night .markdown-section h3,
.book.theme-night .markdown-section h4,
.book.theme-night .markdown-section h5,
.book.theme-night .markdown-section h6 {
    color: #e8e8e8;
}

.book.theme-night .markdown-section h1,
.book.theme-night .markdown-section h2 {
    border-bottom-color: #3a3a3a;
}

.book.theme-night .markdown-section code {
    background: #2d2d2d;
    color: #e8e8e8;
}

.book.theme-night .markdown-section pre {
    background: #2d2d2d;
}

.book.theme-night .markdown-section pre code {
    color: #c8c8c8;
}

/* highlight.js dark theme overrides for night mode */
.book.theme-night .hljs {
    background: #2d2d2d;
    color: #c8c8c8;
}
.book.theme-night .hljs-keyword,
.book.theme-night .hljs-selector-tag,
.book.theme-night .hljs-literal,
.book.theme-night .hljs-section,
.book.theme-night .hljs-link {
    color: #cc99cc;
}
.book.theme-night .hljs-string,
.book.theme-night .hljs-title,
.book.theme-night .hljs-name,
.book.theme-night .hljs-type,
.book.theme-night .hljs-attribute,
.book.theme-night .hljs-symbol,
.book.theme-night .hljs-bullet,
.book.theme-night .hljs-addition,
.book.theme-night .hljs-variable,
.book.theme-night .hljs-template-tag,
.book.theme-night .hljs-template-variable {
    color: #99cc99;
}
.book.theme-night .hljs-comment,
.book.theme-night .hljs-quote,
.book.theme-night .hljs-deletion,
.book.theme-night .hljs-meta {
    color: #999999;
}
.book.theme-night .hljs-number,
.book.theme-night .hljs-regexp,
.book.theme-night .hljs-literal,
.book.theme-night .hljs-built_in {
    color: #f99157;
}

.book.theme-night .markdown-section table {
    background: #1c1c1c !important;
}

.book.theme-night .markdown-section table th,
.book.theme-night .page-inner table th,
.book.theme-night table th {
    background: #2d2d2d !important;
    background-color: #2d2d2d !important;
    color: #e8e8e8 !important;
    border-color: #3a3a3a !important;
}

.book.theme-night .markdown-section table td,
.book.theme-night .page-inner table td,
.book.theme-night table td {
    background: #1c1c1c !important;
    background-color: #1c1c1c !important;
    color: #c8c8c8 !important;
    border-color: #3a3a3a !important;
}

.book.theme-night .markdown-section table tr:nth-child(even) td,
.book.theme-night .page-inner table tr:nth-child(even) td,
.book.theme-night table tr:nth-child(even) td {
    background: #242424 !important;
    background-color: #242424 !important;
}

.book.theme-night .markdown-section blockquote {
    color: #999;
    border-left-color: #3a3a3a;
}

.book.theme-night .markdown-section img {
    opacity: 0.9;
}

.book.theme-night .page-nav {
    background: rgba(200, 200, 200, 0.1);
    color: #999;
}

.book.theme-night .page-nav:hover {
    background: rgba(200, 200, 200, 0.2);
    color: #c8c8c8;
}

.book.theme-night .sidebar-toggle,
.book.theme-night .toc-toggle {
    background: #262626;
    border-color: #3a3a3a;
}

.book.theme-night .sidebar-toggle:hover,
.book.theme-night .toc-toggle:hover {
    background: #333;
}

.book.theme-night .sidebar-toggle svg,
.book.theme-night .toc-toggle svg {
    color: #999;
}

.book.theme-night .page-toc {
    background: #1c1c1c;
    border-left-color: #3a3a3a;
}

.book.theme-night .page-toc .toc-header {
    color: #808080;
    border-bottom-color: #3a3a3a;
}

.book.theme-night .page-toc .toc-list li a {
    color: #999;
}

.book.theme-night .page-toc .toc-list li a:hover {
    color: #6cb2eb;
}

.book.theme-night .page-toc .toc-list li.active a {
    color: #6cb2eb;
}

.book.theme-night .fontsettings-toolbar {
    background: #262626;
    border-color: #3a3a3a;
}

.book.theme-night .fontsettings-toolbar button {
    color: #999;
}

.book.theme-night .fontsettings-toolbar button:hover:not(.disabled) {
    background: #333;
    color: #c8c8c8;
}

.book.theme-night .fontsettings-separator {
    background: #3a3a3a;
}

.book.theme-night .back-to-top {
    background: #6cb2eb;
    color: #1c1c1c;
}

.book.theme-night .back-to-top:hover {
    background: #5a9fd8;
}

/* Mobile: hide fontsettings toolbar on small screens */
@media (max-width: 768px) {
    .fontsettings-toolbar {
        right: 50px !important;
        padding: 2px 4px;
    }

    .fontsettings-toolbar button {
        width: 24px;
        height: 24px;
    }

    .fontsettings-separator {
        margin: 0 2px;
    }
}

/* ==========================================================================
   Glossary Terms - Tooltip Styles
   ========================================================================== */

/* Glossary term styling */
.glossary-term {
    position: relative;
    cursor: help;
    border-bottom: 1px dotted #4183c4;
    color: inherit;
    text-decoration: none;
}

.glossary-term:hover {
    border-bottom-style: solid;
    background-color: rgba(65, 131, 196, 0.1);
}

/* Tooltip container - pure CSS tooltip using ::after */
.glossary-term::after {
    content: attr(data-definition);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: 8px;
    padding: 8px 12px;
    background: #333;
    color: #fff;
    font-size: 13px;
    font-weight: normal;
    line-height: 1.4;
    text-align: left;
    white-space: normal;
    max-width: 300px;
    min-width: 150px;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    pointer-events: none;
}

/* Tooltip arrow */
.glossary-term::before {
    content: "";
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: 2px;
    border: 6px solid transparent;
    border-top-color: #333;
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    pointer-events: none;
}

/* Show tooltip on hover */
.glossary-term:hover::after,
.glossary-term:hover::before {
    opacity: 1;
    visibility: visible;
}

/* Adjust tooltip position for terms near the top of the viewport */
.glossary-term.tooltip-bottom::after {
    bottom: auto;
    top: 100%;
    margin-bottom: 0;
    margin-top: 8px;
}

.glossary-term.tooltip-bottom::before {
    bottom: auto;
    top: 100%;
    margin-bottom: 0;
    margin-top: 2px;
    border-top-color: transparent;
    border-bottom-color: #333;
}

/* Theme: Sepia */
.book.theme-sepia .glossary-term {
    border-bottom-color: #704214;
}

.book.theme-sepia .glossary-term:hover {
    background-color: rgba(112, 66, 20, 0.1);
}

.book.theme-sepia .glossary-term::after {
    background: #5f4b32;
}

.book.theme-sepia .glossary-term::before {
    border-top-color: #5f4b32;
}

.book.theme-sepia .glossary-term.tooltip-bottom::before {
    border-top-color: transparent;
    border-bottom-color: #5f4b32;
}

/* Theme: Night */
.book.theme-night .glossary-term {
    border-bottom-color: #6fa8dc;
}

.book.theme-night .glossary-term:hover {
    background-color: rgba(111, 168, 220, 0.15);
}

.book.theme-night .glossary-term::after {
    background: #4a4a4a;
    color: #e0e0e0;
}

.book.theme-night .glossary-term::before {
    border-top-color: #4a4a4a;
}

.book.theme-night .glossary-term.tooltip-bottom::before {
    border-top-color: transparent;
    border-bottom-color: #4a4a4a;
}

/* Mobile adjustments */
@media (max-width: 768px) {
    .glossary-term::after {
        left: 0;
        transform: none;
        max-width: 250px;
        min-width: 120px;
    }

    .glossary-term::before {
        left: 20px;
        transform: none;
    }
}