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

:root {
    /* Color Palette */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #06b6d4;
    --accent: #f59e0b;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    
    /* Neutral Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-dark: #0f172a;
    --bg-code: #1e293b;
    --bg-output: #0f172a;
    
    /* Text Colors */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --text-inverse: #ffffff;
    
    /* Border Colors */
    --border: #e2e8f0;
    --border-muted: #f1f5f9;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, 'SF Mono', Monaco, Consolas, monospace;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    
    /* Transitions */
    --transition: all 0.2s ease-in-out;
    --transition-fast: all 0.15s ease-in-out;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 16px;
}

/* Layout */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    height: 4rem;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0 var(--spacing-lg);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary);
}

.nav-logo i {
    font-size: 1.5rem;
}

.nav-links {
    display: flex;
    gap: var(--spacing-xl);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

.sidebar {
    position: fixed;
    left: 0;
    top: 4rem;
    bottom: 0;
    width: 280px;
    background: var(--bg-primary);
    border-right: 1px solid var(--border);
    overflow-y: auto;
    z-index: 100;
}

.sidebar-content {
    padding: var(--spacing-xl);
}

.sidebar-section {
    margin-bottom: var(--spacing-xl);
}

.sidebar-section h3 {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.sidebar-section ul {
    list-style: none;
}

.sidebar-section li {
    margin-bottom: var(--spacing-xs);
}

.sidebar-section a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius);
    transition: var(--transition);
    font-size: 0.875rem;
}

.sidebar-section a:hover {
    background: var(--bg-tertiary);
    color: var(--primary);
}

.main-content {
    margin-left: 280px;
    margin-top: 4rem;
    min-height: calc(100vh - 4rem);
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

.section {
    padding: var(--spacing-2xl) 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: var(--spacing-2xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)" /></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-xl);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--spacing-lg);
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(45deg, #ffffff, #e2e8f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

.hero-description {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.8;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: white;
    color: var(--primary);
}

.btn-primary:hover {
    background: var(--bg-tertiary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.feature-card {
    background: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 3rem;
    height: 3rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.feature-icon i {
    font-size: 1.25rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Code Examples */
.example-container {
    margin: var(--spacing-xl) 0;
    max-width: 100%;
    overflow: hidden;
}

.code-example, .output-example {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    margin-bottom: var(--spacing-lg);
    max-width: 100%;
}

.code-header, .output-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
}

.code-language, .output-language {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.copy-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius);
    transition: var(--transition);
}

.copy-btn:hover {
    color: var(--primary);
    background: var(--bg-secondary);
}

.code-editor, .output-editor {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius);
}

.code-editor pre, .output-editor pre {
    margin: 0;
    padding: var(--spacing-lg);
    overflow-x: auto;
    max-width: 100%;
    box-sizing: border-box;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.7;
    white-space: pre;
    word-wrap: normal;
}

.code-editor pre {
    background: var(--bg-code) !important;
    color: #e2e8f0 !important;
}

.output-editor pre {
    background: var(--bg-output) !important;
    color: #94a3b8 !important;
    border-left: 4px solid var(--success);
}

/* Line Numbers */
.line-numbers {
    position: relative;
    padding-left: 3.5rem !important;
    counter-reset: linenumber;
    overflow-x: auto;
    max-width: 100%;
    box-sizing: border-box;
}

.line-numbers::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3rem;
    background: rgba(255, 255, 255, 0.05);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1;
}

.line-numbers-rows {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3rem;
    background: rgba(255, 255, 255, 0.05);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    padding: var(--spacing-lg) 0;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.4);
    user-select: none;
    z-index: 2;
}

.line-number {
    display: block;
    text-align: center;
    line-height: 1.7;
    height: 1.7em;
    counter-increment: linenumber;
}

.line-number::before {
    content: counter(linenumber);
}

.line-numbers .line-numbers-rows .line-number:nth-child(1)::before { content: "1"; }
.line-numbers .line-numbers-rows .line-number:nth-child(2)::before { content: "2"; }
.line-numbers .line-numbers-rows .line-number:nth-child(3)::before { content: "3"; }
.line-numbers .line-numbers-rows .line-number:nth-child(4)::before { content: "4"; }
.line-numbers .line-numbers-rows .line-number:nth-child(5)::before { content: "5"; }

/* Example Items */
.example-item {
    margin: var(--spacing-2xl) 0;
    padding: var(--spacing-xl) 0;
    border-bottom: 1px solid var(--border-muted);
}

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

.example-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.example-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border-radius: 50%;
    font-weight: 700;
    font-size: 1rem;
}

/* Attributes Grid */
.attributes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.attribute-card {
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: var(--transition);
}

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

.attribute-card h4 {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.attribute-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Feature Showcase */
.feature-showcase {
    display: grid;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.feature-item {
    background: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.feature-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.feature-item p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

/* Requirements Grid */
.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.requirement-card {
    background: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    text-align: center;
    transition: var(--transition);
}

.requirement-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.requirement-card i {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: var(--spacing-lg);
}

.requirement-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.requirement-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Footer */
.footer {
    background: var(--bg-dark);
    color: var(--text-inverse);
    padding: var(--spacing-2xl) 0;
    margin-top: var(--spacing-2xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: var(--spacing-md);
    color: white;
}

.footer-section p {
    color: var(--text-muted);
    line-height: 1.6;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
}

/* Code Syntax Highlighting */
.token.keyword {
    color: #c792ea !important;
    font-weight: 600;
}

.token.string {
    color: #c3e88d !important;
}

.token.comment {
    color: #676e95 !important;
    font-style: italic;
}

.token.number {
    color: #f78c6c !important;
}

.token.operator {
    color: #89ddff !important;
}

.token.punctuation {
    color: #89ddff !important;
}

.token.class-name {
    color: #ffcb6b !important;
}

.token.function {
    color: #82aaff !important;
}

.token.property {
    color: #f07178 !important;
}

/* SQL Syntax Highlighting */
.language-sql .token.keyword {
    color: #569cd6 !important;
    font-weight: 600;
}

.language-sql .token.string {
    color: #ce9178 !important;
}

.language-sql .token.number {
    color: #b5cea8 !important;
}

.language-sql .token.operator {
    color: #d4d4d4 !important;
}

.language-sql .token.punctuation {
    color: #d4d4d4 !important;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
        transition: var(--transition);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .nav-links {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .attributes-grid {
        grid-template-columns: 1fr;
    }
    
    .requirements-grid {
        grid-template-columns: 1fr;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .example-title {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }
    
    .code-editor pre,
    .output-editor pre {
        font-size: 0.75rem;
        padding: var(--spacing-md);
    }
    
    .line-numbers {
        padding-left: 2.5rem !important;
    }
    
    .line-numbers::before {
        width: 2rem;
    }
}

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

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

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

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

/* Brand */
.brand{
  display: flex;
  align-items: center;
  gap: 14px;
  padding-bottom: 8px;
  border-bottom: 1px dashed #1f2333;
}
.logo{
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--brand);
  color: #0c0f15;
  font-weight: 900;
  font-size: 24px;
  box-shadow: var(--shadow);
}
.title h1{
  margin: 0 0 2px;
  font-size: 20px;
  letter-spacing: .4px;
}
.title p{
  margin: 0;
  color: var(--muted);
  font-size: 12.5px;
}

/* TOC */
.toc{
  display: grid;
  gap: 10px;
  margin-top: 6px;
}
.toc a{
  color: var(--text);
  text-decoration: none;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: 10px;
  transition: .2s ease;
}
.toc a:hover{
  border-color: #27304a;
  background: #0f1220;
  transform: translateX(2px);
}

/* Cards */
.card{
  background: linear-gradient(180deg, rgba(20,24,35,.66), rgba(13,16,27,.66));
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 24px 24px 26px;
  margin: 0 0 24px;
  box-shadow: var(--shadow);
}
.hero{
  border: 1px solid #28314a;
  background:
    radial-gradient(600px 300px at 0% 0%, rgba(88,101,242,.15), transparent 60%),
    radial-gradient(500px 280px at 100% 0%, rgba(34,197,94,.12), transparent 60%),
    linear-gradient(180deg, rgba(24,29,45,.85), rgba(10,12,22,.85));
}

/* Grid */
.grid.two{
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 10px 20px;
}

/* Meta */
.meta{
  margin-top: auto;
  color: var(--muted);
  font-size: 12px;
  border-top: 1px dashed #1f2333;
  padding-top: 10px;
}

/* Small */
.small{ font-size: 14px; color: var(--muted); }

/* Entity Configuration Styles */
.config-sections {
    display: grid;
    gap: var(--spacing-xl);
}

.config-section {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid var(--border);
}

.config-section h3 {
    color: var(--primary);
    margin-bottom: var(--spacing-lg);
    font-size: 1.25rem;
    font-weight: 600;
}

.best-practices {
    display: grid;
    gap: var(--spacing-lg);
}

.practice-item {
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    border-left: 4px solid var(--primary);
}

.practice-item h4 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
}

.practice-item h4 i {
    color: var(--success);
    font-size: 1.125rem;
}

.practice-item p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.practice-item .code-snippet {
    background: var(--bg-tertiary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.practice-item .code-snippet code {
    color: var(--accent);
}

/* Operations Grid */
.operations-grid {
    display: grid;
    gap: var(--spacing-xl);
}

.operation-category {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid var(--border);
}

.operation-category h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary);
    margin-bottom: var(--spacing-lg);
    font-size: 1.25rem;
    font-weight: 600;
}

.operation-category h3 i {
    color: var(--accent);
    font-size: 1.375rem;
}

/* Advanced Operations Grid */
.advanced-operations-grid {
    display: grid;
    gap: var(--spacing-xl);
}

.advanced-category {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid var(--border);
    position: relative;
}

.advanced-category::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.advanced-category h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary);
    margin-bottom: var(--spacing-lg);
    font-size: 1.25rem;
    font-weight: 600;
}

.advanced-category h3 i {
    color: var(--accent);
    font-size: 1.375rem;
}

/* API Overview Grid */
.api-overview {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-xl);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}

.api-overview h3 {
    color: var(--primary);
    margin-bottom: var(--spacing-lg);
    font-size: 1.25rem;
    font-weight: 600;
}

.api-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.api-card {
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.api-card h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-size: 1rem;
    font-weight: 600;
}

.api-card ul {
    list-style: none;
    display: grid;
    gap: var(--spacing-sm);
}

.api-card li {
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.api-card li code {
    color: var(--accent);
    font-weight: 600;
}

/* API Reference Styles */
.api-reference-grid {
    display: grid;
    gap: var(--spacing-xl);
}

.api-reference-section {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid var(--border);
    position: relative;
}

.api-reference-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.api-reference-section h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary);
    margin-bottom: var(--spacing-lg);
    font-size: 1.375rem;
    font-weight: 600;
}

.api-reference-section h3 i {
    color: var(--accent);
    font-size: 1.5rem;
}

/* API Method Styles */
.api-method {
    background: var(--bg-primary);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--border);
    border-left: 4px solid var(--primary);
}

.api-method h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.125rem;
    font-weight: 600;
    font-family: var(--font-mono);
}

.api-method p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.method-signature {
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    margin-bottom: var(--spacing-md);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    overflow-x: auto;
}

.method-signature code {
    color: var(--accent);
    font-weight: 600;
}

.method-example {
    margin-top: var(--spacing-md);
}

.method-example pre {
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    overflow-x: auto;
}

/* Interface Styles */
.interface-item {
    background: var(--bg-primary);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--border);
    border-left: 4px solid var(--accent);
}

.interface-item h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.125rem;
    font-weight: 600;
    font-family: var(--font-mono);
}

.interface-item p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.interface-methods h5 {
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1rem;
    font-weight: 600;
}

.interface-methods ul {
    list-style: none;
    display: grid;
    gap: var(--spacing-xs);
}

.interface-methods li {
    background: var(--bg-tertiary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.interface-methods li code {
    color: var(--accent);
    font-weight: 600;
}

/* Attribute Styles */
.attribute-item {
    background: var(--bg-primary);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--border);
    border-left: 4px solid var(--success);
}

.attribute-item h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-mono);
}

.attribute-item p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.attribute-example {
    margin-top: var(--spacing-md);
}

.attribute-example pre {
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    overflow-x: auto;
}

/* Dialect Styles */
.dialect-item {
    background: var(--bg-primary);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--border);
    border-left: 4px solid var(--warning);
}

.dialect-item h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.125rem;
    font-weight: 600;
    font-family: var(--font-mono);
}

.dialect-options h5 {
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1rem;
    font-weight: 600;
}

.dialect-options ul {
    list-style: none;
    display: grid;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.dialect-options li {
    background: var(--bg-tertiary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.dialect-options li code {
    color: var(--accent);
    font-weight: 600;
}

.dialect-example pre {
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    overflow-x: auto;
}

/* Dialect Features */
.dialect-features {
    margin-top: var(--spacing-lg);
}

.dialect-features h5 {
    color: var(--primary);
    margin-bottom: var(--spacing-md);
    font-size: 1rem;
    font-weight: 600;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.feature-card {
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.feature-card h6 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
    font-weight: 600;
}

.feature-card ul {
    list-style: none;
    display: grid;
    gap: var(--spacing-xs);
}

.feature-card li {
    color: var(--text-secondary);
    font-size: 0.8125rem;
    padding-left: var(--spacing-sm);
    position: relative;
}

.feature-card li::before {
    content: '•';
    color: var(--accent);
    position: absolute;
    left: 0;
}

/* Extension Method Styles */
.extension-item {
    background: var(--bg-primary);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--border);
    border-left: 4px solid var(--info);
}

.extension-item h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.125rem;
    font-weight: 600;
    font-family: var(--font-mono);
}

.extension-item p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

/* Performance Tips */
.performance-tips {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.tip-card {
    background: var(--bg-primary);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
    border: 1px solid var(--border);
    border-left: 4px solid var(--warning);
}

.tip-card h4 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-size: 1rem;
    font-weight: 600;
}

.tip-card h4 i {
    color: var(--warning);
    font-size: 1.125rem;
}

.tip-card ul {
    list-style: none;
    display: grid;
    gap: var(--spacing-sm);
}

.tip-card li {
    color: var(--text-secondary);
    font-size: 0.875rem;
    padding-left: var(--spacing-md);
    position: relative;
}

.tip-card li::before {
    content: '▶';
    color: var(--warning);
    position: absolute;
    left: 0;
    font-size: 0.75rem;
}

/* Enhanced responsiveness for API Reference */
@media (max-width: 1200px) {
    .api-reference-grid {
        gap: var(--spacing-lg);
    }
    
    .api-reference-section {
        padding: var(--spacing-lg);
    }
    
    .feature-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}

@media (max-width: 768px) {
    .api-reference-grid {
        display: block;
    }
    
    .api-reference-section {
        margin-bottom: var(--spacing-lg);
    }
    
    .feature-grid,
    .performance-tips {
        grid-template-columns: 1fr;
    }
    
    .method-signature,
    .method-example pre,
    .attribute-example pre,
    .dialect-example pre {
        font-size: 0.8125rem;
    }
}

/* Enhanced responsiveness for new sections */
@media (max-width: 1200px) {
    .operations-grid,
    .advanced-operations-grid {
        gap: var(--spacing-lg);
    }
    
    .operation-category,
    .advanced-category {
        padding: var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    .config-sections,
    .operations-grid,
    .advanced-operations-grid {
        display: block;
    }
    
    .config-section,
    .operation-category,
    .advanced-category {
        margin-bottom: var(--spacing-lg);
    }
    
    .best-practices {
        display: block;
    }
    
    .practice-item {
        margin-bottom: var(--spacing-md);
    }
    
    .api-grid {
        grid-template-columns: 1fr;
    }
}

/* Examples Controls */
.examples-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.filter-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border);
    background: var(--bg-primary);
    color: var(--text-secondary);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    font-size: 0.875rem;
}

.filter-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.filter-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--text-inverse);
}

.search-container {
    position: relative;
    min-width: 250px;
}

.search-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    padding-left: 2.5rem;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 0.875rem;
    transition: border-color 0.3s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
}

.search-icon {
    position: absolute;
    left: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
}

/* Examples Grid */
.examples-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.example-item {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: box-shadow 0.3s ease;
}

.example-item:hover {
    box-shadow: var(--shadow-lg);
}

.example-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.example-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    background: var(--primary);
    color: var(--text-inverse);
    border-radius: 50%;
    font-size: 0.875rem;
    font-weight: 700;
    flex-shrink: 0;
}

.example-description {
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-bottom: 1px solid var(--border-muted);
    background: var(--bg-tertiary);
}

.example-container {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.code-example,
.output-example {
    display: flex;
    flex-direction: column;
}

.code-example {
    border-bottom: 1px solid var(--border);
}

.code-header,
.output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-code);
    color: var(--text-inverse);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.output-header {
    background: var(--bg-output);
}

.code-editor,
.output-editor {
    flex: 1;
    overflow: auto;
}

.code-editor pre,
.output-editor pre {
    margin: 0;
    padding: var(--spacing-md);
    background: var(--bg-code);
    color: var(--text-inverse);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.5;
    overflow-x: auto;
}

.output-editor pre {
    background: var(--bg-output);
}

.copy-btn {
    background: none;
    border: none;
    color: var(--text-inverse);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

.copy-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Loading and Error States */
.loading-message {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xl);
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.loading-message i {
    font-size: 1.5rem;
    color: var(--primary);
}

.error-message {
    background: var(--error);
    color: var(--text-inverse);
    padding: var(--spacing-lg);
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
}

.no-results {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Responsive Examples */
@media (max-width: 768px) {
    .examples-controls {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-md);
    }
    
    .filter-buttons {
        justify-content: center;
    }
    
    .search-container {
        min-width: auto;
    }
    
    .example-title {
        font-size: 1.1rem;
        padding: var(--spacing-md);
    }
}

/* Author Biography Section */
.author-biography {
    max-width: 1000px;
    margin: 0 auto;
}

.author-content {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-xl);
    align-items: start;
    margin-bottom: var(--spacing-xl);
}

.author-image {
    position: relative;
    text-align: center;
}

.author-photo {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    border: 4px solid var(--primary);
    box-shadow: var(--shadow-lg);
    object-fit: cover;
}

.author-badge {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: var(--text-inverse);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
    box-shadow: var(--shadow);
}

.author-badge i {
    margin-right: var(--spacing-xs);
}

.author-info {
    padding: var(--spacing-md) 0;
}

.author-name {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.author-title {
    font-size: 1.1rem;
    color: var(--primary);
    font-weight: 500;
    margin-bottom: var(--spacing-lg);
}

.author-description {
    margin-bottom: var(--spacing-lg);
}

.author-description p {
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
    color: var(--text-secondary);
}

.author-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: 12px;
    border: 1px solid var(--border);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-sm);
}

.stat-item i {
    display: block;
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.stat-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.author-links {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.author-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-primary);
    border: 2px solid var(--border);
    border-radius: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

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

.author-link i {
    font-size: 1.1rem;
}

.author-quote {
    background: var(--bg-tertiary);
    border-left: 4px solid var(--primary);
    border-radius: 8px;
    padding: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.author-quote blockquote {
    margin: 0;
    position: relative;
}

.quote-icon {
    position: absolute;
    top: -10px;
    left: -10px;
    font-size: 2rem;
    color: var(--primary);
    opacity: 0.3;
}

.author-quote p {
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--text-primary);
    font-style: italic;
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.author-quote cite {
    display: block;
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-style: normal;
    font-weight: 600;
    text-align: right;
}

/* Responsive Author Section */
@media (max-width: 768px) {
    .author-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-lg);
    }
    
    .author-image {
        justify-self: center;
    }
    
    .author-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .author-links {
        justify-content: center;
    }
    
    .author-name {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    .author-photo {
        width: 150px;
        height: 150px;
    }
    
    .author-stats {
        grid-template-columns: 1fr;
    }
    
    .author-links {
        flex-direction: column;
        align-items: center;
    }
    
    .author-link {
        justify-content: center;
        width: 100%;
        max-width: 200px;
    }
}

/* Responsive */
@media (max-width: 980px){
  .sidebar{ position: static; width: auto; }
  .content{ margin: 0; padding: 24px; }
  .grid.two{ grid-template-columns: 1fr; }
}