/* NeuAIs Documentation - Professional Enterprise Theme */
/* Brand compliant: black, white, grey only */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    /* Colors - Brand compliant grayscale palette */
    --bg-primary: #FFFFFF;
    --bg-secondary: #FAFAFA;
    --bg-tertiary: #F5F5F5;
    --bg-card: #FFFFFF;
    --bg-code: #F8F9FA;
    --bg-hero: #FAFAFA;
    
    --text-primary: #1A1A1A;
    --text-secondary: #4A4A4A;
    --text-muted: #707070;
    --text-inverse: #FFFFFF;
    
    --border-light: #E5E5E5;
    --border-medium: #D1D1D1;
    --border-strong: #999999;
    
    --accent-dark: #000000;
    --accent-light: #666666;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04), 0 1px 4px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 2px 4px rgba(0, 0, 0, 0.06), 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.08), 0 4px 8px rgba(0, 0, 0, 0.04);
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    --font-mono: 'SF Mono', 'Roboto Mono', 'Consolas', 'Monaco', monospace;
    
    /* Layout */
    --content-max-width: 1100px;
    --sidebar-width: 280px;
    --topbar-height: 60px;
    
    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
}

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

html {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    overflow-x: hidden;
}

/* Override mdBook theme system */
.light, .rust, .coal, .navy, .ayu {
    --bg: var(--bg-primary) !important;
    --fg: var(--text-primary) !important;
}

/* Top bar / Menu bar */
#menu-bar {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-light);
    height: var(--topbar-height);
    display: flex;
    align-items: center;
    padding: 0 var(--space-xl);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

#menu-bar .menu-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

/* Sidebar */
.sidebar {
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-light);
    width: var(--sidebar-width);
    padding: var(--space-lg) 0;
}

.sidebar-scrollbox {
    background: transparent;
    padding: 0;
}

/* Sidebar navigation structure */
.chapter {
    color: var(--text-secondary);
    padding: var(--space-sm) var(--space-lg);
    margin: 2px var(--space-md);
    border-radius: 6px;
    font-size: 14px;
    font-weight: 400;
    line-height: 20px;
    transition: all 0.15s ease;
    text-decoration: none;
}

.chapter:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.chapter.active {
    background: var(--bg-tertiary);
    color: var(--accent-dark);
    font-weight: 500;
}

/* Section headers in sidebar */
.chapter li.part-title {
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    padding: var(--space-lg) var(--space-lg) var(--space-sm) var(--space-lg);
    margin-top: var(--space-lg);
}

.chapter li.part-title:first-child {
    margin-top: 0;
}

/* Content area */
.content {
    max-width: var(--content-max-width);
    padding: var(--space-3xl) var(--space-3xl);
    background: var(--bg-primary);
    min-height: calc(100vh - var(--topbar-height));
}

/* Typography hierarchy */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin: 0;
}

h1 {
    font-size: 48px;
    font-weight: 700;
    color: var(--accent-dark);
    margin-bottom: var(--space-xl);
    letter-spacing: -0.03em;
}

h2 {
    font-size: 32px;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: var(--space-3xl);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-light);
}

h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: var(--space-2xl);
    margin-bottom: var(--space-md);
}

h4 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: var(--space-xl);
    margin-bottom: var(--space-md);
}

h5 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-top: var(--space-lg);
    margin-bottom: var(--space-sm);
}

h6 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-muted);
    margin-top: var(--space-md);
    margin-bottom: var(--space-sm);
}

/* Paragraphs */
p {
    margin: var(--space-md) 0;
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.7;
}

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

em {
    font-style: italic;
}

/* Links */
a {
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.15s ease;
    font-weight: 500;
}

a:hover {
    color: var(--accent-dark);
    text-decoration: underline;
}

.content a {
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-medium);
    padding-bottom: 1px;
}

.content a:hover {
    border-bottom-color: var(--accent-dark);
    text-decoration: none;
}

/* Code styling */
code {
    font-family: var(--font-mono);
    font-size: 14px;
    background: var(--bg-code);
    padding: 3px 6px;
    border-radius: 4px;
    border: 1px solid var(--border-light);
    color: var(--text-primary);
}

pre {
    background: var(--bg-code);
    padding: var(--space-xl);
    border-radius: 8px;
    overflow-x: auto;
    border: 1px solid var(--border-light);
    margin: var(--space-xl) 0;
    line-height: 1.6;
}

pre code {
    background: none;
    border: none;
    padding: 0;
    font-size: 14px;
    line-height: 1.7;
}

/* Lists */
ul, ol {
    margin: var(--space-lg) 0;
    padding-left: var(--space-xl);
    color: var(--text-secondary);
}

li {
    margin: var(--space-sm) 0;
    line-height: 1.7;
}

ul li {
    list-style-type: none;
    position: relative;
}

ul li::before {
    content: "";
    position: absolute;
    left: -20px;
    top: 11px;
    width: 6px;
    height: 6px;
    background: var(--text-muted);
    border-radius: 50%;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-xl) 0;
    border: 1px solid var(--border-light);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

thead {
    background: var(--bg-secondary);
}

th {
    padding: var(--space-md) var(--space-lg);
    text-align: left;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-medium);
}

td {
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--border-light);
    color: var(--text-secondary);
    font-size: 14px;
}

tr:last-child td {
    border-bottom: none;
}

tbody tr:hover {
    background: var(--bg-secondary);
}

/* Blockquotes */
blockquote {
    border-left: 4px solid var(--accent-dark);
    padding: var(--space-md) var(--space-xl);
    margin: var(--space-xl) 0;
    background: var(--bg-secondary);
    border-radius: 0 6px 6px 0;
}

blockquote p {
    color: var(--text-secondary);
    margin: 0;
}

/* Hero section */
.hero {
    background: var(--bg-hero);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: var(--space-3xl);
    margin-bottom: var(--space-3xl);
}

.hero h1 {
    margin-bottom: var(--space-md);
}

.hero p {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 800px;
}

/* Card grid system */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
    margin: var(--space-xl) 0;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    padding: var(--space-xl);
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
}

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

.card h3 {
    margin-top: 0;
    margin-bottom: var(--space-sm);
    font-size: 20px;
}

.card p {
    margin: 0;
    font-size: 15px;
    color: var(--text-secondary);
}

/* Card styling - no icons per brand guidelines */

/* Feature cards */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
    margin: var(--space-xl) 0;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    padding: var(--space-lg);
    transition: all 0.2s ease;
}

.feature-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--border-strong);
}

.feature-card h4 {
    margin-top: 0;
    margin-bottom: var(--space-sm);
    font-size: 18px;
}

.feature-card p {
    margin: 0;
    font-size: 14px;
}

/* Quick links section */
.quick-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-md);
    margin: var(--space-xl) 0;
}

.quick-link-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    padding: var(--space-lg);
    text-decoration: none;
    transition: all 0.2s ease;
}

.quick-link-card:hover {
    background: var(--bg-tertiary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.quick-link-card h4 {
    margin: 0 0 var(--space-xs) 0;
    font-size: 16px;
    color: var(--text-primary);
}

.quick-link-card p {
    margin: 0;
    font-size: 14px;
    color: var(--text-muted);
}

/* Navigation buttons */
.nav-chapters {
    display: flex;
    justify-content: space-between;
    margin-top: var(--space-3xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border-light);
    gap: var(--space-md);
}

.nav-chapters a {
    padding: var(--space-md) var(--space-lg);
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
    text-decoration: none;
}

.nav-chapters a:hover {
    background: var(--bg-tertiary);
    box-shadow: var(--shadow-sm);
    border-color: var(--border-medium);
}

/* Search bar */
#searchbar {
    background: var(--bg-primary);
    border: 1px solid var(--border-medium);
    color: var(--text-primary);
    padding: var(--space-sm) var(--space-md);
    border-radius: 6px;
    width: calc(100% - 32px);
    font-size: 14px;
    margin: var(--space-md) var(--space-md);
    transition: all 0.2s ease;
}

#searchbar:focus {
    outline: none;
    border-color: var(--accent-dark);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.05);
}

/* Horizontal rule */
hr {
    border: none;
    border-top: 1px solid var(--border-light);
    margin: var(--space-2xl) 0;
}

/* Images */
img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: var(--space-xl) 0;
    border: 1px solid var(--border-light);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-medium);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-strong);
}

/* Focus states */
*:focus-visible {
    outline: 2px solid var(--accent-dark);
    outline-offset: 2px;
}

/* Hide theme picker */
.theme-popup,
#theme-list,
#theme-toggle {
    display: none !important;
}

/* Callouts / Admonitions */
.note, .warning, .info, .tip {
    padding: var(--space-lg);
    margin: var(--space-xl) 0;
    border-radius: 6px;
    border-left: 4px solid var(--accent-dark);
    background: var(--bg-secondary);
}

.note strong:first-child,
.warning strong:first-child,
.info strong:first-child,
.tip strong:first-child {
    display: block;
    margin-bottom: var(--space-sm);
    font-size: 14px;
    font-weight: 600;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .content {
        padding: var(--space-xl) var(--space-lg);
    }
    
    h1 {
        font-size: 36px;
    }
    
    h2 {
        font-size: 28px;
    }
    
    h3 {
        font-size: 22px;
    }
    
    .card-grid,
    .features-grid,
    .quick-links {
        grid-template-columns: 1fr;
    }
}

/* Print styles */
@media print {
    .sidebar,
    #menu-bar,
    .nav-chapters,
    #searchbar {
        display: none;
    }
    
    .content {
        max-width: 100%;
        padding: 0;
    }
}

/* Footer (if added to mdBook) */
footer {
    border-top: 1px solid var(--border-light);
    padding: var(--space-2xl) 0;
    margin-top: var(--space-3xl);
    color: var(--text-muted);
    font-size: 14px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-xl);
}

.footer-section h6 {
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

.footer-section li {
    margin: var(--space-sm) 0;
}

/* Section-specific header icons */
.chapter:has([href*="quickstart"]) h1::before,
.chapter:has([href*="installation"]) h1::before,
.chapter:has([href*="first-deployment"]) h1::before {
    content: '';
    display: inline-block;
    width: 32px;
    height: 32px;
    margin-right: 12px;
    background-image: url('icons/rocket.svg');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
    filter: brightness(0.3);
}

.chapter:has([href*="monitoring"]) h1::before,
.chapter:has([href*="metrics"]) h1::before {
    content: '';
    display: inline-block;
    width: 32px;
    height: 32px;
    margin-right: 12px;
    background-image: url('icons/chart.svg');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
    filter: brightness(0.3);
}

.chapter:has([href*="observatory"]) h1::before {
    content: '';
    display: inline-block;
    width: 32px;
    height: 32px;
    margin-right: 12px;
    background-image: url('icons/chart.svg');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
    filter: brightness(0.3);
}

.chapter:has([href*="security"]) h1::before {
    content: '';
    display: inline-block;
    width: 32px;
    height: 32px;
    margin-right: 12px;
    background-image: url('icons/shield-tick.svg');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
    filter: brightness(0.3);
}

.chapter:has([href*="cli"]) h1::before,
.chapter:has([href*="reference"]) h1::before {
    content: '';
    display: inline-block;
    width: 32px;
    height: 32px;
    margin-right: 12px;
    background-image: url('icons/shell.svg');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
    filter: brightness(0.3);
}

.chapter:has([href*="architecture"]) h1::before,
.chapter:has([href*="components"]) h1::before {
    content: '';
    display: inline-block;
    width: 32px;
    height: 32px;
    margin-right: 12px;
    background-image: url('icons/project.svg');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
    filter: brightness(0.3);
}

.chapter:has([href*="api"]) h1::before {
    content: '';
    display: inline-block;
    width: 32px;
    height: 32px;
    margin-right: 12px;
    background-image: url('icons/source.svg');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
    filter: brightness(0.3);
}


/* Accessibility Enhancements */

/* Skip link */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: #000;
    color: #fff;
    padding: 12px 20px;
    text-decoration: none;
    z-index: 10000;
    border-radius: 0 0 8px 0;
}

.skip-link:focus {
    top: 0;
    outline: 3px solid #0066cc;
    outline-offset: 2px;
}

/* Visible focus indicators */
*:focus-visible {
    outline: 2px solid #0066cc;
    outline-offset: 3px;
}

/* High contrast support */
@media (prefers-contrast: high) {
    :root {
        --text-primary: #000000;
        --bg-primary: #FFFFFF;
    }
    
    a {
        text-decoration: underline;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

/* Touch targets */
button,
a {
    min-height: 44px;
    min-width: 44px;
}