/* ========================================
   CSS VARIABLES - DESIGN SYSTEM
   ======================================== */
:root {
    /* Modern Blue Color Palette */
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #dbeafe;
    --secondary: #64748b;
    --accent: #8b5cf6;

    /* Backgrounds */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-sidebar: #ffffff;

    /* Text */
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --text-tertiary: #94a3b8;

    /* Borders */
    --border-color: #e2e8f0;
    --border-radius: 12px;
    --border-radius-sm: 6px;

    /* Code */
    --code-bg: #f1f5f9;
    --code-border: #e2e8f0;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);

    /* Spacing */
    --sidebar-width: 240px;
    --header-height: 80px;

    /* Transitions */
    --transition: all 0.2s ease;
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --primary-light: #1e3a8a;

    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-sidebar: #1e293b;

    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;

    --border-color: #334155;

    --code-bg: #1e293b;
    --code-border: #334155;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
}

/* ========================================
   BASE STYLES
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
    line-height: 1.6;
}

/* ========================================
   SIDEBAR
   ======================================== */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100%;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    overflow-x: hidden;
    padding: 24px 16px;
    z-index: 1000;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.sidebar-header {
    padding: 0 8px 16px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 20px;
}

.sidebar-header h2 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Mobile Hamburger Menu */
.menu-toggle {
    display: none;
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 1001;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--border-radius-sm);
    padding: 10px 14px;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.menu-toggle:hover {
    background: var(--primary-hover);
    transform: scale(1.05);
}

.menu-toggle svg {
    width: 24px;
    height: 24px;
    display: block;
    stroke: currentColor;
}

/* ========================================
   MAIN CONTENT
   ======================================== */
.content {
    margin-left: var(--sidebar-width);
    padding: 32px;
    transition: var(--transition);
    min-height: 100vh;
    position: relative;
}

/* ========================================
   HEADER
   ======================================== */
header {
    margin-bottom: 40px;
    padding-bottom: 24px;
    border-bottom: 2px solid var(--border-color);
}

header h1 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 12px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

header p {
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.6;
}

header a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

header a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

/* Stats Bar */
.stats-bar {
    display: flex;
    gap: 24px;
    margin-top: 16px;
    padding: 16px 0;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 14px;
}

.stat-item strong {
    color: var(--primary);
    font-size: 18px;
}

/* ========================================
   DARK MODE TOGGLE
   ======================================== */
.theme-toggle {
    position: absolute;
    top: 32px;
    right: 32px;
    z-index: 100;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 8px 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.theme-toggle:hover {
    background: var(--bg-secondary);
    box-shadow: var(--shadow-md);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    stroke: var(--text-primary);
    color: var(--text-primary);
}

/* ========================================
   LANGUAGE SELECTION - COMPACT DESIGN
   ======================================== */
#toggle {
    margin-bottom: 24px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.language-header {
    padding: 16px 20px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.language-header strong {
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 600;
}

.language-container {
    padding: 16px;
}

.language-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.toggle-vis {
    display: inline-block;
    padding: 6px 14px;
    background: var(--bg-primary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    cursor: pointer;
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    transition: var(--transition);
    white-space: nowrap;
}

.toggle-vis:hover {
    background: var(--primary-light);
    color: var(--primary);
    border-color: var(--primary);
    transform: translateY(-1px);
}

.toggle-vis.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

/* ========================================
   TABLE STYLES
   ======================================== */
.dataTables_wrapper {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    padding: 24px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

/* Ensure all DataTables text is visible in dark mode */
.dataTables_wrapper * {
    color: inherit;
}

.dataTables_wrapper label,
.dataTables_wrapper .dataTables_info,
.dataTables_wrapper .dataTables_paginate,
.dataTables_wrapper .dataTables_length,
.dataTables_wrapper .dataTables_filter {
    color: var(--text-primary);
}

.dataTables_wrapper .dataTable {
    table-layout: fixed;
    word-wrap: break-word;
    border-collapse: separate;
    border-spacing: 0;
}

.dataTables_wrapper .dataTable thead tr {
    background: var(--bg-tertiary);
}

.dataTables_wrapper .dataTable thead th {
    padding: 16px;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
    position: sticky;
    top: 0;
    background: var(--bg-tertiary);
    z-index: 10;
}

.dataTables_wrapper .dataTable tbody tr {
    transition: var(--transition);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-primary) !important;
}

.dataTables_wrapper .dataTable tbody tr.odd,
.dataTables_wrapper .dataTable tbody tr.even {
    background: var(--bg-primary) !important;
}

.dataTables_wrapper .dataTable tbody tr:hover {
    background: var(--bg-secondary) !important;
}

.dataTables_wrapper .dataTable td {
    vertical-align: top;
    padding: 16px;
    color: var(--text-primary) !important;
    background-color: transparent !important;
}

/* Ensure markdown content in table cells is visible */
.dataTables_wrapper .dataTable td p,
.dataTables_wrapper .dataTable td li,
.dataTables_wrapper .dataTable td div,
.dataTables_wrapper .dataTable td h1,
.dataTables_wrapper .dataTable td h2,
.dataTables_wrapper .dataTable td h3,
.dataTables_wrapper .dataTable td h4,
.dataTables_wrapper .dataTable td h5,
.dataTables_wrapper .dataTable td h6 {
    color: var(--text-primary);
    background: transparent;
}

.dataTables_wrapper .dataTable td a {
    color: var(--primary) !important;
}

.dataTables_wrapper .dataTable td a:hover {
    color: var(--primary-hover) !important;
}

.dataTables_wrapper .dataTable td em {
    color: inherit !important;
}

.dataTables_wrapper .dataTable td strong {
    color: inherit !important;
}

.dataTables_wrapper .dataTable td ul,
.dataTables_wrapper .dataTable td ol {
    background: transparent;
}

.dataTables_wrapper .dataTables_filter {
    float: left;
    margin-bottom: 16px;
}

.dataTables_wrapper .dataTables_filter label {
    color: var(--text-primary);
    font-weight: 500;
}

.dataTables_wrapper .dataTables_filter input {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 8px 12px;
    color: var(--text-primary);
    margin-left: 8px;
}

.dataTables_wrapper .dataTables_filter input::placeholder {
    color: var(--text-tertiary);
    opacity: 0.7;
}

.dataTables_wrapper .dataTables_filter input:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Additional DataTables UI elements for dark mode */
.dataTables_wrapper .dataTables_length,
.dataTables_wrapper .dataTables_info,
.dataTables_wrapper .dataTables_paginate {
    color: var(--text-primary) !important;
}

.dataTables_wrapper .dataTables_length label,
.dataTables_wrapper .dataTables_info,
.dataTables_wrapper .dataTables_paginate .paginate_button,
.dataTables_wrapper .dataTables_processing {
    color: var(--text-primary) !important;
}

.dataTables_wrapper .dataTables_length select {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 4px 8px;
    color: var(--text-primary);
    margin: 0 8px;
}

/* Force all text elements to use theme colors */
.dataTables_wrapper .dataTables_filter label,
.dataTables_wrapper .dataTables_filter input::placeholder {
    color: var(--text-primary) !important;
}

/* ========================================
   CODE BLOCKS
   ======================================== */
pre {
    overflow-x: auto;
    background-color: var(--code-bg) !important;
    border: 1px solid var(--code-border);
    border-radius: var(--border-radius-sm);
    padding: 16px;
    margin: 12px 0;
    position: relative;
}

/* Code blocks inside table cells */
.dataTables_wrapper .dataTable td pre {
    background-color: var(--code-bg) !important;
}

.dataTables_wrapper .dataTable td pre code {
    /* Don't override syntax highlighting colors */
}

/* Allow syntax highlighting in table cells */
.dataTables_wrapper .dataTable td code.hljs,
.dataTables_wrapper .dataTable td code.hljs * {
    color: inherit;
}

pre code {
    font-family: 'Fira Code', 'JetBrains Mono', 'Cascadia Code', Consolas, monospace;
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-primary);
    display: block;
    overflow-x: auto;
}

/* Base highlight.js styling for light mode */
code.hljs {
    display: block;
    overflow-x: auto;
    padding: 1em;
    color: #383a42 !important;
    background: transparent !important;
}

.hljs-comment,
.hljs-quote {
    color: #a0a1a7 !important;
    font-style: italic;
}

.hljs-doctag,
.hljs-keyword,
.hljs-formula {
    color: #a626a4 !important;
}

.hljs-section,
.hljs-name,
.hljs-selector-tag,
.hljs-deletion,
.hljs-subst {
    color: #e45649 !important;
}

.hljs-literal {
    color: #0184bb !important;
}

.hljs-string,
.hljs-regexp,
.hljs-addition,
.hljs-attribute,
.hljs-meta .hljs-string {
    color: #50a14f !important;
}

.hljs-attr,
.hljs-variable,
.hljs-template-variable,
.hljs-type,
.hljs-selector-class,
.hljs-selector-attr,
.hljs-selector-pseudo,
.hljs-number {
    color: #986801 !important;
}

.hljs-symbol,
.hljs-bullet,
.hljs-link,
.hljs-meta,
.hljs-selector-id,
.hljs-title {
    color: #4078f2 !important;
}

.hljs-built_in,
.hljs-title.class_,
.hljs-class .hljs-title {
    color: #c18401 !important;
}

.hljs-emphasis {
    font-style: italic;
}

.hljs-strong {
    font-weight: bold;
}

.hljs-link {
    text-decoration: underline;
}

/* Syntax highlighting for dark mode - One Dark theme */
[data-theme="dark"] code.hljs {
    color: #abb2bf !important;
    background: transparent !important;
}

[data-theme="dark"] .hljs-comment,
[data-theme="dark"] .hljs-quote {
    color: #5c6370 !important;
    font-style: italic;
}

[data-theme="dark"] .hljs-doctag,
[data-theme="dark"] .hljs-keyword,
[data-theme="dark"] .hljs-formula {
    color: #c678dd !important;
}

[data-theme="dark"] .hljs-section,
[data-theme="dark"] .hljs-name,
[data-theme="dark"] .hljs-selector-tag,
[data-theme="dark"] .hljs-deletion,
[data-theme="dark"] .hljs-subst {
    color: #e06c75 !important;
}

[data-theme="dark"] .hljs-literal {
    color: #56b6c2 !important;
}

[data-theme="dark"] .hljs-string,
[data-theme="dark"] .hljs-regexp,
[data-theme="dark"] .hljs-addition,
[data-theme="dark"] .hljs-attribute,
[data-theme="dark"] .hljs-meta .hljs-string {
    color: #98c379 !important;
}

[data-theme="dark"] .hljs-attr,
[data-theme="dark"] .hljs-variable,
[data-theme="dark"] .hljs-template-variable,
[data-theme="dark"] .hljs-type,
[data-theme="dark"] .hljs-selector-class,
[data-theme="dark"] .hljs-selector-attr,
[data-theme="dark"] .hljs-selector-pseudo,
[data-theme="dark"] .hljs-number {
    color: #d19a66 !important;
}

[data-theme="dark"] .hljs-symbol,
[data-theme="dark"] .hljs-bullet,
[data-theme="dark"] .hljs-link,
[data-theme="dark"] .hljs-meta,
[data-theme="dark"] .hljs-selector-id,
[data-theme="dark"] .hljs-title {
    color: #61afef !important;
}

[data-theme="dark"] .hljs-built_in,
[data-theme="dark"] .hljs-title.class_,
[data-theme="dark"] .hljs-class .hljs-title {
    color: #e5c07b !important;
}

[data-theme="dark"] .hljs-emphasis {
    font-style: italic;
}

[data-theme="dark"] .hljs-strong {
    font-weight: bold;
}

[data-theme="dark"] .hljs-link {
    text-decoration: underline;
}

/* Copy Button for Code Blocks */
.code-block-wrapper {
    position: relative;
}

.copy-button {
    position: absolute;
    top: 8px;
    right: 8px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--border-radius-sm);
    padding: 6px 12px;
    font-size: 12px;
    cursor: pointer;
    opacity: 0;
    transition: var(--transition);
}

.code-block-wrapper:hover .copy-button {
    opacity: 1;
}

.copy-button:hover {
    background: var(--primary-hover);
}

/* ========================================
   TOC STYLES
   ======================================== */
#toc ul {
    list-style: none;
    padding-left: 0;
}

#toc > ul > li {
    margin-bottom: 8px;
}

#toc > ul > li > ul {
    padding-left: 12px;
    margin-top: 4px;
}

#toc > ul > li > ul > li {
    margin-bottom: 4px;
}

#toc > ul > li:first-child {
    font-weight: 600;
    color: var(--text-primary);
    padding: 8px;
    background: var(--bg-tertiary);
    border-radius: var(--border-radius-sm);
    margin-bottom: 12px;
}

#toc a.toggle-vis {
    display: block;
    padding: 6px 12px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
    border: none;
    background: transparent;
    margin: 0;
}

#toc a.toggle-vis:hover {
    background: var(--bg-tertiary);
    color: var(--primary);
    transform: translateX(4px);
}

#toc a.toggle-vis.active {
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 600;
    border-left: 3px solid var(--primary);
}

/* ========================================
   FOOTER
   ======================================== */
footer {
    margin-top: 60px;
    padding-top: 24px;
    border-top: 2px solid var(--border-color);
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
}

footer a {
    color: var(--primary);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* Error message styling */
.error-message {
    color: var(--text-tertiary);
    font-style: italic;
}

/* Mobile Sidebar Overlay */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.sidebar-overlay.active {
    display: block;
    opacity: 1;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .theme-toggle {
        top: 24px;
        right: 20px;
    }

    .sidebar {
        transform: translateX(-100%);
        box-shadow: none;
    }

    .sidebar.active {
        transform: translateX(0);
        box-shadow: var(--shadow-lg);
    }

    .content {
        margin-left: 0;
        padding: 80px 16px 16px;
    }

    header h1 {
        font-size: 28px;
    }

    .stats-bar {
        flex-direction: column;
        gap: 12px;
    }

    .dataTables_wrapper {
        padding: 12px;
        border-radius: var(--border-radius-sm);
    }

    .language-container {
        padding: 12px;
    }

    .language-header {
        padding: 12px 16px;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .sidebar {
        width: 220px;
    }

    .content {
        margin-left: 220px;
        padding: 24px;
    }
}