/* Astute Systems MkDocs Theme
 * Matching the main website styling
 * Compatible with ReadTheDocs
 */

/* CSS Variables - Matching main website */
:root {
    --primary-color: #012141;
    --secondary-color: #012141;
    --accent-color: #00FFFF;
    --accent-secondary: #0072FF;
    --text-primary: #FFFFFF;
    --text-secondary: #b0c4de;
    --text-dark: #012141;
    --background: #012141;
    --card-bg: rgba(1, 33, 65, 0.8);
    --border-color: rgba(0, 114, 255, 0.3);
    --success: #00ff88;
    --danger: #ff3366;
    --warning: #ffaa00;
    --info: #00aaff;
    --gradient-start: #0072FF;
    --gradient-end: #00FFFF;
    
    /* Layout */
    --navbar-height: 70px;
    --sidebar-width: 280px;
    --toc-width: 220px;
    --content-max-width: 900px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* Base */
html {
    font-size: 16px;
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--navbar-height) + 20px);
}

body {
    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-secondary);
}

/* Selection */
::selection {
    background: var(--accent-color);
    color: var(--primary-color);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-secondary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-color);
}

/* =====================
   NAVIGATION
   ===================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--navbar-height);
    background: rgba(1, 33, 65, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid var(--border-color);
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 217, 255, 0.1);
}

.nav-wrapper {
    width: 100%;
    padding: 0 1.5rem 0 calc(1rem + 0.75rem);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
    text-decoration: none;
}

.logo img {
    height: 60px;
    width: auto;
    position: relative;
    top: 3px;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-primary {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-menu-wrapper {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

.nav-menu a {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0.5rem;
    position: relative;
    transition: color var(--transition-normal);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width var(--transition-normal);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--accent-color);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

/* Dropdown */
.nav-menu .has-dropdown {
    position: relative;
}

.nav-menu .has-dropdown > a::after {
    content: '';
    display: none;
}

.nav-menu .has-dropdown > a::before {
    content: ' ▼';
    font-size: 0.6em;
    margin-left: 6px;
    opacity: 0.7;
}

.nav-menu .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    min-width: 200px;
    padding: 0.5rem 0;
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-normal);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.nav-menu .has-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-menu .dropdown-menu a {
    display: block;
    padding: 0.75rem 1.25rem;
    font-size: 0.9rem;
    text-transform: none;
    letter-spacing: 0;
}

.nav-menu .dropdown-menu a::after {
    display: none;
}

.nav-menu .dropdown-menu a:hover {
    background: rgba(0, 114, 255, 0.1);
}

/* Search */
.search-container {
    position: relative;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-right .search-container {
    position: relative;
}

.nav-right .search-input {
    width: 280px;
    padding: 0.6rem 1rem 0.6rem 2.5rem;
    font-size: 0.9rem;
    font-family: inherit;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    outline: none;
    transition: all var(--transition-fast);
}

.nav-right .search-input:focus {
    border-color: var(--accent-color);
    background: rgba(0, 0, 0, 0.4);
}

.nav-right .search-input::placeholder {
    color: var(--text-secondary);
}

.nav-right .search-icon {
    position: absolute;
    left: 0.85rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 0.85rem;
    pointer-events: none;
}

.search-toggle {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 0.5rem;
    transition: color var(--transition-fast);
}

.search-toggle:hover {
    color: var(--accent-color);
}

.search-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(1, 33, 65, 0.95);
    backdrop-filter: blur(10px);
    z-index: 2000;
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding-top: 100px;
}

.search-modal.active {
    display: flex;
}

.search-modal-content {
    width: 100%;
    max-width: 600px;
    padding: 0 1rem;
}

.search-input {
    width: 100%;
    padding: 1rem 1.5rem;
    font-size: 1.2rem;
    font-family: inherit;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    outline: none;
    transition: border-color var(--transition-fast);
}

.search-input:focus {
    border-color: var(--accent-color);
}

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

.search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: 0.5rem;
    max-height: 400px;
    overflow-y: auto;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    z-index: 1000;
}

.search-results:empty {
    display: none;
}

.search-result-item {
    display: block;
    padding: 1rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 0.5rem;
    transition: all var(--transition-fast);
}

.search-result-item:hover {
    border-color: var(--accent-color);
    transform: translateX(5px);
}

.search-result-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.search-result-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* =====================
   MAIN LAYOUT
   ===================== */
.main-container {
    display: flex;
    margin-top: var(--navbar-height);
    min-height: calc(100vh - var(--navbar-height));
    flex: 1;
}

.main-container.no-navbar {
    margin-top: 0;
    min-height: 100vh;
}

/* Mobile overlay - hidden by default on desktop */
.mobile-overlay {
    display: none;
}

/* =====================
   SIDEBAR
   ===================== */
.sidebar {
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    width: var(--sidebar-width);
    height: calc(100vh - var(--navbar-height));
    background: #012141 !important;
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    padding: 0;
    z-index: 100;
}

.sidebar-header {
    padding: 0 1.5rem 1rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1rem;
}

.sidebar-header h3 {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
}

.sidebar-header i {
    margin-right: 0.5rem;
    color: var(--accent-color);
}

.sidebar-nav {
    padding: 1.5rem 1rem;
}

.sidebar-section {
    margin-bottom: 0.5rem;
}

.sidebar-section-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 6px;
    transition: all var(--transition-fast);
}

.sidebar-section-title:hover {
    background: rgba(0, 114, 255, 0.1);
    color: var(--accent-color);
}

.sidebar-section-title i {
    font-size: 0.7rem;
    transition: transform var(--transition-fast);
}

.sidebar-section.collapsed .sidebar-section-title i {
    transform: rotate(-90deg);
}

.sidebar-section.collapsed .sidebar-section-items {
    display: none;
}

.sidebar-section-items {
    list-style: none;
    padding-left: 0.5rem;
    margin-top: 0.25rem;
}

.sidebar-section-items li {
    margin: 2px 0;
}

.sidebar-section-items a,
.sidebar-link {
    display: block;
    padding: 0.5rem 0.75rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    border-radius: 6px;
    border-left: 3px solid transparent;
    transition: all var(--transition-fast);
}

.sidebar-section-items a:hover,
.sidebar-link:hover {
    background: rgba(0, 114, 255, 0.1);
    color: var(--text-primary);
    border-left-color: var(--accent-secondary);
}

.sidebar-section-items a.active,
.sidebar-link.active {
    background: rgba(0, 255, 255, 0.1);
    color: var(--accent-color);
    border-left-color: var(--accent-color);
    font-weight: 500;
}

/* =====================
   CONTENT
   ===================== */
.content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 1.5rem 2rem 2rem 1.5rem;
    display: block;
    max-width: calc(var(--sidebar-width) + var(--content-max-width) + 5rem);
}

.content-article {
    max-width: var(--content-max-width);
    min-width: 0;
}

/* Breadcrumbs */
.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.breadcrumbs a {
    color: var(--text-secondary);
}

.breadcrumbs a:hover {
    color: var(--accent-color);
}

.breadcrumbs .separator {
    font-size: 0.7rem;
    opacity: 0.5;
}

.breadcrumbs .current {
    color: var(--accent-color);
}

/* Page Header */
.page-header {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--text-primary), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    margin-bottom: 0.5rem;
}

.page-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* Page Content */
.page-content {
    line-height: 1.8;
}

.page-content h1,
.page-content h2,
.page-content h3,
.page-content h4,
.page-content h5,
.page-content h6 {
    color: var(--text-primary);
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.page-content h1 { font-size: 2rem; }
.page-content h2 { 
    font-size: 1.6rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}
.page-content h3 { font-size: 1.3rem; }
.page-content h4 { font-size: 1.1rem; }
.page-content h5 { font-size: 1rem; }
.page-content h6 { font-size: 0.9rem; color: var(--text-secondary); }

.page-content p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.page-content ul,
.page-content ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    color: var(--text-secondary);
}

.page-content li {
    margin-bottom: 0.5rem;
}

.page-content strong {
    color: var(--text-primary);
    font-weight: 600;
}

.page-content em {
    font-style: italic;
}

/* Links */
.page-content a {
    color: var(--accent-color);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-fast);
}

.page-content a:hover {
    border-bottom-color: var(--accent-color);
}

/* Anchor links */
.page-content h1 .headerlink,
.page-content h2 .headerlink,
.page-content h3 .headerlink,
.page-content h4 .headerlink,
.page-content h5 .headerlink,
.page-content h6 .headerlink {
    margin-left: 0.5rem;
    opacity: 0;
    transition: opacity var(--transition-fast);
    color: var(--accent-secondary);
}

.page-content h1:hover .headerlink,
.page-content h2:hover .headerlink,
.page-content h3:hover .headerlink,
.page-content h4:hover .headerlink,
.page-content h5:hover .headerlink,
.page-content h6:hover .headerlink {
    opacity: 1;
}

/* Code */
.page-content code {
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 0.9em;
    background: rgba(0, 114, 255, 0.15);
    color: var(--accent-color);
    padding: 0.2em 0.4em;
    border-radius: 4px;
}

.page-content pre {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    overflow-x: auto;
    margin-bottom: 1rem;
}

.page-content pre code {
    background: transparent;
    padding: 0;
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.6;
}

/* Tables */
.page-content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.page-content th,
.page-content td {
    padding: 0.75rem 1rem;
    text-align: left;
    border: 1px solid var(--border-color);
}

.page-content th {
    background: rgba(0, 114, 255, 0.15);
    color: var(--text-primary);
    font-weight: 600;
}

.page-content td {
    color: var(--text-secondary);
}

.page-content tr:hover td {
    background: rgba(0, 114, 255, 0.05);
}

/* Blockquotes */
.page-content blockquote {
    border-left: 4px solid var(--accent-color);
    margin: 1.5rem 0;
    padding: 1rem 1.5rem;
    background: rgba(0, 255, 255, 0.05);
    border-radius: 0 8px 8px 0;
}

.page-content blockquote p:last-child {
    margin-bottom: 0;
}

/* Images */
.page-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    margin: 1rem 0;
}

/* Image alignment support (attr_list extension) */
.page-content img[align="right"] {
    float: right;
    margin: 0 0 1rem 1.5rem;
    max-width: 250px;
}

.page-content img[align="left"] {
    float: left;
    margin: 0 1.5rem 1rem 0;
    max-width: 250px;
}

/* Clear floats after sections */
.page-content h1,
.page-content h2,
.page-content h3,
.page-content h4,
.page-content h5,
.page-content h6 {
    clear: both;
}

/* Horizontal Rule */
.page-content hr {
    border: none;
    height: 1px;
    background: var(--border-color);
    margin: 2rem 0;
}

/* =====================
   ADMONITIONS
   ===================== */
.admonition {
    margin: 1.5rem 0;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    border-left: 4px solid;
    background: rgba(0, 0, 0, 0.2);
}

.admonition-title {
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.admonition-title::before {
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
}

.admonition.note {
    border-color: var(--info);
}
.admonition.note .admonition-title {
    color: var(--info);
}
.admonition.note .admonition-title::before {
    content: '\f05a';
}

.admonition.tip,
.admonition.hint {
    border-color: var(--success);
}
.admonition.tip .admonition-title,
.admonition.hint .admonition-title {
    color: var(--success);
}
.admonition.tip .admonition-title::before,
.admonition.hint .admonition-title::before {
    content: '\f0eb';
}

.admonition.warning,
.admonition.caution {
    border-color: var(--warning);
}
.admonition.warning .admonition-title,
.admonition.caution .admonition-title {
    color: var(--warning);
}
.admonition.warning .admonition-title::before,
.admonition.caution .admonition-title::before {
    content: '\f071';
}

.admonition.danger,
.admonition.error {
    border-color: var(--danger);
}
.admonition.danger .admonition-title,
.admonition.error .admonition-title {
    color: var(--danger);
}
.admonition.danger .admonition-title::before,
.admonition.error .admonition-title::before {
    content: '\f06a';
}

.admonition.example {
    border-color: var(--accent-secondary);
}
.admonition.example .admonition-title {
    color: var(--accent-secondary);
}
.admonition.example .admonition-title::before {
    content: '\f518';
}

/* =====================
   TABLE OF CONTENTS (HIDDEN)
   ===================== */
.toc {
    display: none !important;
}

/* =====================
   PAGE NAVIGATION
   ===================== */
.page-nav {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.page-nav-prev,
.page-nav-next {
    display: flex;
    flex-direction: column;
    padding: 1rem 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: all var(--transition-fast);
    max-width: 45%;
}

.page-nav-prev:hover,
.page-nav-next:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.page-nav-next {
    margin-left: auto;
    text-align: right;
}

.page-nav-direction {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.page-nav-title {
    font-weight: 600;
    color: var(--accent-color);
}

/* Edit Page */
.edit-page {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.edit-page a {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.edit-page a:hover {
    color: var(--accent-color);
}

.edit-page i {
    margin-right: 0.5rem;
}

/* =====================
   FOOTER
   ===================== */
.footer {
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.footer-logo {
    font-size: 1.2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-tagline {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 1.1rem;
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    color: var(--accent-color);
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 0.5rem;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.footer-powered a {
    color: var(--accent-color);
}

/* =====================
   BACK TO TOP
   ===================== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 45px;
    height: 45px;
    background: var(--accent-secondary);
    border: none;
    border-radius: 8px;
    color: white;
    font-size: 1rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-normal);
    z-index: 500;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--accent-color);
    color: var(--primary-color);
}

/* =====================
   RESPONSIVE
   ===================== */
@media (max-width: 1200px) {
    .toc {
        display: none;
    }
    
    .content {
        max-width: calc(100% - var(--sidebar-width));
    }
}

@media (max-width: 992px) {
    :root {
        --sidebar-width: 250px;
    }
    
    .content {
        padding: 1.5rem;
    }
}

@media (max-width: 768px) {
    .nav-wrapper {
        padding: 0 0.75rem;
    }
    
    .nav-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        background: rgba(0, 114, 255, 0.2);
        border: 1px solid var(--border-color);
        border-radius: 8px;
        color: var(--text-primary);
        font-size: 1.25rem;
        cursor: pointer;
        transition: all var(--transition-fast);
        margin-left: auto;
    }
    
    .nav-toggle:hover {
        background: rgba(0, 255, 255, 0.2);
        border-color: var(--accent-color);
        color: var(--accent-color);
    }
    
    /* Hide search on mobile */
    .nav-right .search-container {
        display: none;
    }
    
    .nav-menu-wrapper {
        position: fixed;
        top: var(--navbar-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(1, 33, 65, 0.98);
        flex-direction: column;
        padding: 2rem;
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
    }
    
    .nav-menu-wrapper.active {
        transform: translateX(0);
    }
    
    .nav-menu {
        flex-direction: column;
        gap: 1rem;
    }
    
    .sidebar {
        position: fixed;
        top: var(--navbar-height);
        left: 0;
        width: var(--sidebar-width);
        height: calc(100vh - var(--navbar-height));
        background: #012141 !important;
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
        z-index: 900;
        overflow-y: auto;
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    /* Mobile overlay */
    .mobile-overlay {
        display: none;
        position: fixed;
        top: var(--navbar-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.6);
        z-index: 850;
        opacity: 0;
        transition: opacity var(--transition-normal);
    }
    
    .mobile-overlay.active {
        display: block;
        opacity: 1;
    }
    
    /* Prevent body scroll when menu is open */
    body.menu-open {
        overflow: hidden;
    }
    
    .content {
        margin-left: 0;
        max-width: 100%;
        padding: 1rem;
    }
    
    .page-header h1 {
        font-size: 1.8rem;
    }
    
    .page-nav {
        flex-direction: column;
    }
    
    .page-nav-prev,
    .page-nav-next {
        max-width: 100%;
    }
    
    .page-nav-next {
        text-align: left;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
}

/* =====================
   PRINT STYLES
   ===================== */
@media print {
    .navbar,
    .sidebar,
    .toc,
    .page-nav,
    .edit-page,
    .footer,
    .back-to-top {
        display: none !important;
    }
    
    .content {
        margin: 0;
        padding: 0;
        max-width: 100%;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .page-content a {
        color: black;
        text-decoration: underline;
    }
    
    .page-content a::after {
        content: ' (' attr(href) ')';
        font-size: 0.8em;
    }
}

/* =====================
   MERMAID DIAGRAMS
   ===================== */
.mermaid {
    background: #ffffff !important;
    padding: 20px;
    border-radius: 8px;
    margin: 1.5em 0;
    text-align: center;
}

.mermaid svg {
    background: #ffffff !important;
    max-width: 100%;
    height: auto;
}

/* Ensure mermaid text is readable */
.mermaid .nodeLabel,
.mermaid .edgeLabel,
.mermaid text {
    fill: #333333 !important;
    color: #333333 !important;
}

/* Mermaid node styling */
.mermaid .node rect,
.mermaid .node circle,
.mermaid .node ellipse,
.mermaid .node polygon {
    fill: #e8f4fc !important;
    stroke: #0072FF !important;
}

/* Mermaid edge/arrow styling */
.mermaid .edgePath .path {
    stroke: #666666 !important;
}

.mermaid .arrowheadPath {
    fill: #666666 !important;
}