/* Nautilus Bot Documentation - GitBook-Style CSS with Nautilus Theme */

/* CSS Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Nautilus Shell Inspired Color Scheme - Day Mode (Updated to Beige/Brown Pastels) */
    --primary-color: #a0826d;
    --primary-hover: #8b6f5c;
    --accent-color: #b5967f;
    --text-primary: #3d3328;
    --text-secondary: #5a4a3b;
    --text-muted: #7a6b5a;
    --background-primary: #f7f3f0;
    --background-secondary: #f1ebe5;
    --background-tertiary: #e8ddd4;
    --border-color: #d7c7b7;
    --border-light: #e2d5c7;
    --sidebar-bg: #f4efe8;
    --sidebar-border: #ddd0bf;
    --code-bg: #ede4d8;
    --code-border: #d4c4b0;
    --success-color: #7ba05b;
    --warning-color: #d4a574;
    --error-color: #c67b7b;
    --info-color: #7a8ba3;
    --shell-gradient: linear-gradient(135deg, #f7f3f0, #f1ebe5, #e8ddd4);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Layout */
    --sidebar-width: 280px;
    --toc-sidebar-width: 260px;
    --header-height: 64px;
    --content-max-width: 800px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(61, 51, 40, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(61, 51, 40, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(61, 51, 40, 0.1);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    
    /* Theme Transition */
    --transition-theme: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode - Nautilus Night Theme (Updated with Shell Darker Tones) */
[data-theme="dark"] {
    --primary-color: #b5967f;
    --primary-hover: #a0826d;
    --accent-color: #c4a68f;
    --text-primary: #f1ebe5;
    --text-secondary: #d7c7b7;
    --text-muted: #b5a394;
    --background-primary: #1a1612;
    --background-secondary: #211c17;
    --background-tertiary: #2a241e;
    --border-color: #3a2f25;
    --border-light: #2f251c;
    --sidebar-bg: #1c1813;
    --sidebar-border: #2f251c;
    --code-bg: #242017;
    --code-border: #3a2f25;
    --shell-gradient: linear-gradient(135deg, #1a1612, #211c17, #2a241e);
    
    /* Adjust shadows for dark mode */
    --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, 0.4);
}

/* Base HTML and Body */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--shell-gradient);
    transition: var(--transition-theme);
    max-width: 100vw;
}

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: var(--background-primary);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition-theme);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0 var(--spacing-lg);
    max-width: 100%;
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    min-width: var(--sidebar-width);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition-theme);
}

.logo-image {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    transition: var(--transition-theme);
    flex-shrink: 0;
}

.logo i {
    font-size: var(--font-size-xl);
    color: var(--primary-color);
    transition: var(--transition-theme);
}

.header-center {
    flex: 1;
    display: flex;
    justify-content: center;
    max-width: 600px;
    margin: 0 var(--spacing-xl);
}

.search-container {
    position: relative;
    width: 100%;
    max-width: 480px;
}

.search-input {
    width: 100%;
    height: 40px;
    padding: 0 var(--spacing-md) 0 40px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background-color: var(--background-secondary);
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    transition: var(--transition-theme);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(210, 105, 30, 0.1);
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-icon {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    transition: var(--transition-theme);
}

.search-shortcut {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    background-color: var(--background-tertiary);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition-theme);
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: var(--transition-theme);
    font-size: var(--font-size-base);
    font-weight: 600;
}

.header-link:hover {
    color: var(--primary-color);
    background-color: var(--background-secondary);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: none;
    background-color: transparent;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-theme);
    font-size: var(--font-size-lg);
}

.mobile-menu-toggle:hover {
    background-color: var(--background-secondary);
    color: var(--text-primary);
}

.mobile-menu-toggle:active {
    background-color: var(--background-tertiary);
}

/* Mobile Search Toggle */
.mobile-search-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: none;
    background-color: transparent;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-theme);
    font-size: var(--font-size-lg);
}

.mobile-search-toggle:hover {
    background-color: var(--background-secondary);
    color: var(--text-primary);
}

.mobile-search-toggle:active {
    background-color: var(--background-tertiary);
}

/* Main Container */
.main-container {
    display: flex;
    min-height: 100vh;
    padding-top: var(--header-height);
}

/* Sidebar Styles */
.sidebar {
    position: fixed;
    left: 0;
    top: var(--header-height);
    width: var(--sidebar-width);
    height: calc(100vh - var(--header-height));
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--sidebar-border);
    z-index: 100;
    transition: var(--transition-theme);
    display: flex;
    flex-direction: column;
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg) 0;
    padding-bottom: 0;
}

.sidebar-nav::-webkit-scrollbar {
    width: 4px;
}

.sidebar-nav::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar-nav::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 2px;
}

.sidebar-nav::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

.nav-section {
    margin-bottom: var(--spacing-xl);
    padding: 0 var(--spacing-lg);
}

.nav-section-title {
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
    padding: 0 var(--spacing-sm);
    transition: var(--transition-theme);
}

.nav-list {
    list-style: none;
}

.nav-item {
    margin-bottom: 2px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 400;
    transition: var(--transition-theme);
}

.nav-link:hover {
    background-color: var(--background-secondary);
    color: var(--text-primary);
}

.nav-item.active .nav-link {
    background-color: var(--primary-color);
    color: white;
    font-weight: 500;
}

.nav-item.active .nav-link:hover {
    background-color: var(--primary-hover);
}

.nav-link i {
    width: 16px;
    font-size: var(--font-size-sm);
    opacity: 0.7;
    transition: var(--transition-theme);
}

.nav-item.active .nav-link i {
    opacity: 1;
}

.sidebar-footer {
    flex-shrink: 0;
    padding: var(--spacing-lg);
    border-top: 1px solid var(--sidebar-border);
    background-color: var(--sidebar-bg);
    transition: var(--transition-theme);
}

.theme-selector {
    margin-bottom: var(--spacing-lg);
}

.theme-options {
    display: flex;
    gap: var(--spacing-xs);
    background-color: var(--background-secondary);
    border-radius: var(--radius-lg);
    padding: 4px;
    border: 1px solid var(--border-color);
}

.theme-option {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    background: none;
    color: var(--text-muted);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-theme);
}

.theme-option:hover {
    background-color: var(--background-tertiary);
    color: var(--text-secondary);
}

.theme-option.active {
    background-color: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-sm);
}

.theme-option.active:hover {
    background-color: var(--primary-hover);
}

.theme-option i {
    font-size: var(--font-size-sm);
}

.theme-option span {
    font-size: var(--font-size-xs);
}

.powered-by {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    text-align: center;
    transition: var(--transition-theme);
}

.powered-by strong {
    color: var(--text-secondary);
}

/* Content Area */
.content {
    flex: 1;
    margin-left: var(--sidebar-width);
    margin-right: var(--toc-sidebar-width);
    background-color: var(--background-primary);
    transition: var(--transition-theme);
}

.content-container {
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: var(--spacing-2xl);
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.content-section {
    display: none;
}

.content-section.active {
    display: block;
}

.page-header {
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition-theme);
}

.page-breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.breadcrumb-item.current {
    color: var(--text-secondary);
    font-weight: 500;
}

.page-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
    transition: var(--transition-theme);
}

.page-subtitle {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    transition: var(--transition-theme);
}

/* Content Body Styles */
.content-body h2 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-primary);
    margin: var(--spacing-2xl) 0 var(--spacing-lg) 0;
    line-height: 1.3;
    transition: var(--transition-theme);
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.content-body h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin: var(--spacing-xl) 0 var(--spacing-md) 0;
    line-height: 1.4;
    transition: var(--transition-theme);
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.content-body p {
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
    line-height: 1.7;
    transition: var(--transition-theme);
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.content-body .lead {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    font-weight: 400;
    margin-bottom: var(--spacing-xl);
    transition: var(--transition-theme);
}

.content-body ul, .content-body ol {
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-xl);
}

.content-body li {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    line-height: 1.6;
    transition: var(--transition-theme);
}

.content-body a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-theme);
}

.content-body a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin: var(--spacing-2xl) 0;
}

.feature-card {
    padding: var(--spacing-xl);
    background-color: var(--background-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    transition: var(--transition-theme);
}

.feature-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--border-color);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    transition: var(--transition-theme);
}

.feature-icon i {
    font-size: var(--font-size-xl);
    color: white;
}

.feature-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    transition: var(--transition-theme);
}

.feature-card p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0;
    transition: var(--transition-theme);
}

/* Workflow Steps */
.workflow-steps {
    counter-reset: step-counter;
    list-style: none;
    padding-left: 0;
    margin: var(--spacing-2xl) 0;
}

.workflow-steps li {
    counter-increment: step-counter;
    position: relative;
    padding-left: 3rem;
    margin-bottom: var(--spacing-xl);
    color: var(--text-secondary);
    line-height: 1.7;
    transition: var(--transition-theme);
}

.workflow-steps li::before {
    content: counter(step-counter);
    position: absolute;
    left: 0;
    top: 0;
    width: 2rem;
    height: 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--font-size-sm);
    transition: var(--transition-theme);
}

/* Step Container */
.step-container {
    margin: var(--spacing-2xl) 0;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.step {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition-theme);
}

.step:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.step-number {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--font-size-lg);
    transition: var(--transition-theme);
}

.step-content h3 {
    margin-top: 0;
    margin-bottom: var(--spacing-md);
}

.step-content p {
    margin-bottom: var(--spacing-md);
}

.step-content ul {
    margin-bottom: var(--spacing-md);
}

/* Table of Contents Sidebar */
.toc-sidebar {
    position: fixed;
    right: 0;
    top: var(--header-height);
    width: var(--toc-sidebar-width);
    height: calc(100vh - var(--header-height));
    background-color: var(--sidebar-bg);
    border-left: 1px solid var(--sidebar-border);
    z-index: 99;
    transition: var(--transition-theme);
    overflow-y: auto;
    padding: var(--spacing-xl) 0;
}

.toc-sidebar::-webkit-scrollbar {
    width: 4px;
}

.toc-sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.toc-sidebar::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 2px;
}

.toc-sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

.toc-header {
    padding: 0 var(--spacing-lg) var(--spacing-lg) var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
    margin-bottom: var(--spacing-lg);
}

.toc-header h3 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: var(--transition-theme);
}

.toc-nav {
    padding: 0 var(--spacing-lg);
}

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

.toc-item {
    margin-bottom: var(--spacing-sm);
}

.toc-link {
    display: block;
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--text-muted);
    text-decoration: none;
    font-size: var(--font-size-sm);
    line-height: 1.4;
    border-radius: var(--radius-sm);
    transition: var(--transition-theme);
    border-left: 2px solid transparent;
    opacity: 0.7;
}

.toc-link:hover {
    background-color: var(--background-secondary);
    color: var(--text-secondary);
    opacity: 1;
}

.toc-link.active {
    background-color: var(--background-secondary);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
    font-weight: 500;
    opacity: 1;
}

.toc-link.level-h2 {
    font-weight: 500;
    padding-left: var(--spacing-sm);
}

.toc-link.level-h3 {
    font-weight: 400;
    padding-left: var(--spacing-lg);
    font-size: var(--font-size-xs);
    opacity: 0.6;
}

.toc-link.level-h3:hover {
    color: var(--text-secondary);
    opacity: 0.9;
}

.toc-link.level-h3.active {
    color: var(--primary-color);
    opacity: 1;
}

/* Code Blocks */
.code-block {
    background-color: var(--code-bg);
    border: 1px solid var(--code-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    overflow-x: auto;
    transition: var(--transition-theme);
    max-width: 100%;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.code-block code {
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    background: none;
    padding: 0;
    border: none;
    white-space: pre-wrap;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.code-block pre {
    margin: 0;
    white-space: pre-wrap;
    word-wrap: break-word;
    overflow-wrap: break-word;
    max-width: 100%;
}

code {
    background-color: var(--code-bg);
    color: var(--primary-color);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9em;
    border: 1px solid var(--code-border);
    transition: var(--transition-theme);
    word-wrap: break-word;
    overflow-wrap: break-word;
    max-width: 100%;
}

/* Important Links */
.important-links {
    margin: var(--spacing-2xl) 0;
}

.link-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.link-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background-color: var(--background-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: var(--transition-theme);
}

.link-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.link-card i {
    font-size: var(--font-size-2xl);
    color: var(--primary-color);
    flex-shrink: 0;
    transition: var(--transition-theme);
}

.link-card h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 2px 0;
    transition: var(--transition-theme);
}

.link-card p {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin: 0;
    transition: var(--transition-theme);
}

/* Callouts */
.callout {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin: var(--spacing-xl) 0;
    border-left: 4px solid;
    transition: var(--transition-theme);
}

.callout.info {
    background-color: rgba(47, 79, 143, 0.1);
    border-left-color: var(--info-color);
}

.callout.success {
    background-color: rgba(16, 185, 129, 0.1);
    border-left-color: var(--success-color);
}

.callout.warning {
    background-color: rgba(245, 158, 11, 0.1);
    border-left-color: var(--warning-color);
}

.callout.error {
    background-color: rgba(239, 68, 68, 0.1);
    border-left-color: var(--error-color);
}

.callout-icon {
    flex-shrink: 0;
    margin-top: 2px;
}

.callout.info .callout-icon i {
    color: var(--info-color);
}

.callout.success .callout-icon i {
    color: var(--success-color);
}

.callout.warning .callout-icon i {
    color: var(--warning-color);
}

.callout.error .callout-icon i {
    color: var(--error-color);
}

.callout-content h3 {
    margin: 0 0 var(--spacing-sm) 0;
    font-size: var(--font-size-base);
    font-weight: 600;
    transition: var(--transition-theme);
}

.callout-content p {
    margin: 0;
    font-size: var(--font-size-sm);
    line-height: 1.6;
    transition: var(--transition-theme);
}

/* Search Modal */
.search-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(74, 55, 40, 0.5);
    z-index: 2000;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.search-modal.active {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 10vh;
}

.search-modal-content {
    background-color: var(--background-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 90%;
    max-width: 600px;
    max-height: 70vh;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition-theme);
}

.search-modal-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-theme);
}

.search-modal-header i {
    color: var(--text-muted);
}

.search-modal-header input {
    flex: 1;
    border: none;
    outline: none;
    font-size: var(--font-size-lg);
    background: none;
    color: var(--text-primary);
}

.search-modal-header input::placeholder {
    color: var(--text-muted);
}

.search-close {
    cursor: pointer;
    font-size: var(--font-size-xl);
    color: var(--text-muted);
    line-height: 1;
    transition: var(--transition-theme);
}

.search-close:hover {
    color: var(--text-primary);
}

.search-results {
    max-height: 50vh;
    overflow-y: auto;
    padding: var(--spacing-md);
}

.search-result {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-theme);
    border-bottom: 1px solid var(--border-light);
}

.search-result:hover {
    background-color: var(--background-secondary);
}

.search-result h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 4px 0;
}

.search-result p {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin: 0;
}

/* Responsive Design */
@media (max-width: 1024px) {
    :root {
        --sidebar-width: 260px;
        --toc-sidebar-width: 0px;
    }
    
    .content-container {
        padding: var(--spacing-lg);
    }
    
    .toc-sidebar {
        display: none;
    }
    
    .content {
        margin-right: 0;
    }
}

@media (max-width: 768px) {
    /* Show mobile controls */
    .mobile-menu-toggle {
        display: flex;
    }
    
    .mobile-search-toggle {
        display: flex;
    }
    
    /* Hide desktop search on mobile */
    .header-center {
        display: none;
    }
    
    /* Hide logo image on mobile to prevent overflow */
    .logo-image {
        display: none;
    }
    
    /* Adjust header left section for mobile */
    .header-left {
        min-width: auto;
        flex: 1;
    }
    
    /* Adjust header right section for mobile */
    .header-right {
        gap: var(--spacing-sm); /* Reduce gap between icons */
    }
    
    /* Sidebar mobile behavior */
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: none;
        z-index: 200; /* Higher z-index for mobile */
        /* Ensure proper flexbox layout is maintained on mobile */
        display: flex;
        flex-direction: column;
        /* Use fixed height that accounts for mobile viewport issues */
        height: calc(100vh - var(--header-height));
        max-height: calc(100vh - var(--header-height));
        overflow: hidden; /* Prevent sidebar itself from scrolling */
    }
    
    .sidebar.mobile-open {
        transform: translateX(0);
        box-shadow: var(--shadow-lg);
    }
    
    /* Ensure nav scrolls properly on mobile with reserved space for footer */
    .sidebar-nav {
        flex: 1;
        overflow-y: auto;
        overflow-x: hidden;
        min-height: 0; /* Important for flex child to be scrollable */
        padding: var(--spacing-lg) 0;
    }
    
    /* Ensure footer stays at bottom on mobile and is always visible */
    .sidebar-footer {
        flex-shrink: 0;
    }
    
    /* Content adjustments for mobile */
    .content {
        margin-left: 0;
        margin-right: 0;
    }
    
    .content-container {
        padding: var(--spacing-lg);
    }
    
    /* Feature grid mobile layout */
    .feature-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .link-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .step {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    /* Page header mobile adjustments */
    .page-header {
        padding: var(--spacing-lg) 0;
    }
    
    .page-title {
        font-size: var(--font-size-2xl);
        line-height: 1.2;
    }
    
    .page-subtitle {
        font-size: var(--font-size-base);
        line-height: 1.4;
    }
    
    /* Content body mobile adjustments */
    .content-body h2,
    .content-body h3,
    .content-body h4 {
        line-height: 1.3;
    }
    
    .content-body p {
        line-height: 1.6;
    }
    
    /* Code blocks mobile adjustments */
    .code-block {
        margin: var(--spacing-md) 0;
        padding: var(--spacing-md);
        font-size: var(--font-size-xs);
        overflow-x: auto;
    }
    
    code {
        font-size: 0.8em;
        padding: 1px 4px;
    }
    
    /* Feature cards mobile adjustments */
    .feature-card {
        padding: var(--spacing-lg);
        margin-bottom: var(--spacing-md);
    }
    
    .feature-card h3 {
        font-size: var(--font-size-lg);
        line-height: 1.3;
    }
    
    .feature-card p {
        font-size: var(--font-size-sm);
        line-height: 1.5;
    }
    
    /* Step containers mobile adjustments */
    .step-container {
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .step-content {
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .step-content h3 {
        font-size: var(--font-size-lg);
        line-height: 1.3;
    }
    
    .step-content p {
        line-height: 1.5;
    }
    
    /* Callouts mobile adjustments */
    .callout {
        margin: var(--spacing-md) 0;
        padding: var(--spacing-md);
    }
    
    .callout-content h3 {
        font-size: var(--font-size-base);
        line-height: 1.3;
    }
    
    .callout-content p {
        font-size: var(--font-size-sm);
        line-height: 1.5;
    }
    
    /* Mobile overlay for sidebar */
    .sidebar-overlay {
        display: none;
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        height: calc(100vh - var(--header-height));
        background-color: rgba(0, 0, 0, 0.5);
        z-index: 99;
        backdrop-filter: blur(2px);
        -webkit-backdrop-filter: blur(2px);
    }
    
    .sidebar-overlay.active {
        display: block;
    }
    
    /* Adjust header link for very small screens */
    .header-link span {
        display: none;
    }
    
    .header-link {
        padding: var(--spacing-sm) var(--spacing-md);
        min-width: 44px;
        height: 44px;
        justify-content: center;
    }
    
    .header-link i {
        margin: 0;
        font-size: var(--font-size-lg); /* Make telegram icon larger */
    }
}

@media (max-width: 640px) {
    .header-container {
        padding: 0 var(--spacing-md);
    }
    
    .content-container {
        padding: var(--spacing-md);
    }
    
    .page-title {
        font-size: var(--font-size-2xl);
    }
    
    .content-body h2 {
        font-size: var(--font-size-xl);
    }
    
    /* Adjust header link for very small screens */
    .header-link span {
        display: none;
    }
    
    .header-link {
        padding: var(--spacing-sm) var(--spacing-md);
        min-width: 40px;
        justify-content: center;
    }
    
    .header-link i {
        margin: 0;
    }
}

/* Print Styles */
@media print {
    .header,
    .sidebar,
    .search-modal,
    .theme-toggle {
        display: none;
    }
    
    .content {
        margin-left: 0;
    }
    
    .content-container {
        max-width: none;
        padding: 0;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000000;
        --border-light: #666666;
    }
    
    [data-theme="dark"] {
        --border-color: #ffffff;
        --border-light: #cccccc;
    }
    
    .feature-card,
    .link-card,
    .callout {
        border-width: 2px;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* X/Twitter Icon Override - for older Font Awesome versions */
.fa-x-twitter:before,
.fa-brands.fa-x-twitter:before {
    font-family: sans-serif;
    content: "𝕏";
    font-size: 1.1em;
    font-weight: bold;
}

/* Ensure proper styling for the X icon */
.link-card .fa-x-twitter {
    color: var(--primary-color);
    transition: var(--transition-theme);
}

/* Chart Example Image Styles */
.chart-example {
    margin: var(--spacing-2xl) 0;
    text-align: center;
}

.chart-example-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    transition: var(--transition-theme);
}

.chart-image-container {
    position: relative;
    display: inline-block;
    max-width: 100%;
    background-color: var(--background-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-theme);
    overflow: hidden;
}

.chart-image-container:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.chart-image {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    transition: var(--transition-theme);
    max-width: 800px; /* Prevent overly large images on desktop */
    display: block;
}

.chart-caption {
    margin-top: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    font-style: italic;
    transition: var(--transition-theme);
}

/* Chart image responsive behavior */
@media (max-width: 768px) {
    .chart-example {
        margin: var(--spacing-xl) 0;
    }
    
    .chart-image-container {
        padding: var(--spacing-md);
    }
    
    .chart-example-title {
        font-size: var(--font-size-base);
    }
    
    .chart-caption {
        font-size: var(--font-size-xs);
    }
}

@media (max-width: 640px) {
    .chart-example {
        margin: var(--spacing-lg) 0;
    }
    
    .chart-image-container {
        padding: var(--spacing-sm);
    }
}

/* Timeline Styles for Upcoming Features */
.timeline-container {
    position: relative;
    margin: var(--spacing-xl) 0;
    padding-left: var(--spacing-xl);
}

.timeline-container::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary-color), var(--accent-color));
    border-radius: 1px;
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-2xl);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: -32px;
    top: 8px;
    width: 40px;
    height: 40px;
    background: var(--background-primary);
    border: 3px solid var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: var(--transition-theme);
}

.timeline-marker i {
    font-size: var(--font-size-base);
    color: var(--primary-color);
    transition: var(--transition-theme);
}

.timeline-content {
    flex: 1;
    background: var(--background-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-theme);
}

.timeline-content:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.timeline-content:hover .timeline-marker {
    background: var(--primary-color);
    transform: scale(1.1);
}

.timeline-content:hover .timeline-marker i {
    color: var(--background-primary);
}

.timeline-date {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-sm);
}

.timeline-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

.timeline-content p {
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.timeline-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.feature-tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--background-tertiary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    transition: var(--transition-theme);
}

.feature-tag:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--background-primary);
}

/* Timeline Responsive */
@media (max-width: 768px) {
    .timeline-container {
        padding-left: var(--spacing-lg);
    }

    .timeline-container::before {
        left: 15px;
    }

    .timeline-marker {
        left: -27px;
        width: 32px;
        height: 32px;
        top: 6px;
    }

    .timeline-marker i {
        font-size: var(--font-size-sm);
    }

    .timeline-content {
        padding: var(--spacing-md);
    }

    .timeline-content h3 {
        font-size: var(--font-size-lg);
    }

    .timeline-content p {
        font-size: var(--font-size-sm);
    }

    .timeline-item {
        gap: var(--spacing-md);
        margin-bottom: var(--spacing-xl);
    }
}

@media (max-width: 640px) {
    .timeline-container {
        padding-left: var(--spacing-md);
    }

    .timeline-container::before {
        left: 12px;
    }

    .timeline-marker {
        left: -24px;
        width: 28px;
        height: 28px;
        top: 4px;
    }

    .timeline-marker i {
        font-size: var(--font-size-xs);
    }

    .timeline-content {
        padding: var(--spacing-sm);
    }

    .timeline-content h3 {
        font-size: var(--font-size-base);
        margin-bottom: var(--spacing-sm);
    }

    .timeline-content p {
        font-size: var(--font-size-sm);
        margin-bottom: var(--spacing-sm);
    }

    .timeline-features {
        gap: var(--spacing-xs);
        margin-top: var(--spacing-sm);
    }

    .feature-tag {
        padding: 2px var(--spacing-xs);
        font-size: 10px;
    }
}

/* Hero Banner Styles */
.hero-banner {
    margin: var(--spacing-md) 0 var(--spacing-lg) 0;
    padding: 0;
    width: 100%;
    display: block;
}

.banner-image-full {
    width: 100%;
    height: auto;
    display: block;
    margin: 0;
    padding: 0;
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}