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

:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --accent-color: #f59e0b;
    --background: #ffffff;
    --surface: #f8fafc;
    --surface-hover: #f1f5f9;
    --border: #e2e8f0;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --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);
    --sidebar-width: 280px;
    --border-radius: 8px;
    --transition: all 0.2s ease-in-out;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
}

/* Layout */
.layout {
    display: flex;
    min-height: 100vh;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 1000;
    background: var(--primary-color);
    border: none;
    border-radius: var(--border-radius);
    padding: 0.75rem;
    cursor: pointer;
    flex-direction: column;
    gap: 4px;
    transition: var(--transition);
}

.mobile-menu-toggle span {
    width: 20px;
    height: 2px;
    background: white;
    transition: var(--transition);
}

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

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--surface);
    border-right: 1px solid var(--border);
    overflow-y: auto;
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
    z-index: 900;
    transition: var(--transition);
}

.sidebar-header {
    padding: 2rem 1.5rem 1rem;
    border-bottom: 1px solid var(--border);
}

.logo {
    text-decoration: none;
    color: var(--text-primary);
}

.logo h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
}

.nav-content {
    padding: 1.5rem;
}

/* Navigation Items */
.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    text-decoration: none;
    color: var(--text-secondary);
    border-radius: var(--border-radius);
    transition: var(--transition);
    margin-bottom: 0.25rem;
    font-weight: 500;
}

.nav-item:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
}

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

.nav-icon {
    font-size: 1.1rem;
    min-width: 20px;
}

/* Navigation Sections */
.nav-section {
    margin-bottom: 2rem;
}

.nav-section-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
    padding: 0 1rem;
}

/* Dropdown Navigation */
.nav-dropdown {
    margin-bottom: 0.25rem;
}

.nav-dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.75rem 1rem;
    background: none;
    border: none;
    text-align: left;
    color: var(--text-secondary);
    font-weight: 500;
    border-radius: var(--border-radius);
    transition: var(--transition);
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
}

.nav-dropdown-toggle:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
}

.dropdown-arrow {
    margin-left: auto;
    font-size: 0.75rem;
    transition: transform 0.2s ease;
}

.nav-dropdown.open > .nav-dropdown-toggle > .dropdown-arrow {
    transform: rotate(90deg);
}

.nav-dropdown-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding-left: 1rem;
}

.nav-dropdown.open > .nav-dropdown-content {
    max-height: 1000px; /* Increased for nested content */
}

.nav-dropdown-content .nav-item {
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
}

/* Nested dropdown styles */
.nav-dropdown-content .nav-dropdown {
    margin-left: 0.5rem;
}

.nav-dropdown-content .nav-dropdown-toggle {
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
}

.nav-dropdown-content .nav-dropdown-content {
    padding-left: 1.5rem;
}

/* Third level and beyond */
.nav-dropdown-content .nav-dropdown-content .nav-dropdown {
    margin-left: 0.5rem;
}

.nav-dropdown-content .nav-dropdown-content .nav-dropdown-toggle {
    font-size: 0.85rem;
    padding: 0.4rem 0.8rem;
}

.nav-dropdown-content .nav-dropdown-content .nav-item {
    font-size: 0.85rem;
    padding: 0.4rem 0.8rem;
}

/* Visual hierarchy for nested levels */
.nav-dropdown-content .nav-dropdown .nav-icon {
    opacity: 0.8;
}

.nav-dropdown-content .nav-dropdown-content .nav-icon {
    opacity: 0.6;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    transition: var(--transition);
}

.content-wrapper {
    max-width: 800px;
    padding: 2rem;
    margin: 0 auto;
}

/* Homepage Styles */
.hero {
    text-align: center;
    padding: 4rem 0;
    margin-bottom: 3rem;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.card {
    background: var(--surface);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.card p {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.card ul {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0 0;
}

.card li {
    margin-bottom: 0.5rem;
}

.card a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

.card a::before {
    content: "→";
    font-weight: bold;
}

.card em {
    color: var(--text-muted);
    font-style: italic;
}

/* Documentation Styles */
.documentation {
    max-width: none;
}

.doc-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.doc-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.doc-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

.doc-content {
    line-height: 1.7;
}

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

.doc-content h1 { font-size: 2rem; }
.doc-content h2 { font-size: 1.75rem; }
.doc-content h3 { font-size: 1.5rem; }
.doc-content h4 { font-size: 1.25rem; }

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

.doc-content ul,
.doc-content ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

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

.doc-content a {
    color: var(--primary-color);
    text-decoration: none;
}

.doc-content a:hover {
    text-decoration: underline;
}

.doc-content blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: 1rem;
    margin: 1.5rem 0;
    font-style: italic;
    color: var(--text-secondary);
}

.doc-content code {
    background: var(--surface);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.875rem;
}

.doc-content pre {
    background: var(--surface);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    overflow-x: auto;
    margin: 1.5rem 0;
    border: 1px solid var(--border);
}

.doc-content pre code {
    background: none;
    padding: 0;
}

.doc-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
}

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

.doc-content th {
    font-weight: 600;
    color: var(--text-primary);
    background: var(--surface);
}

.doc-content img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 1.5rem auto;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.doc-footer {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.doc-meta {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .content-wrapper {
        padding: 1rem;
        padding-top: 5rem; /* Account for mobile menu toggle */
    }
    
    .hero {
        padding: 2rem 0;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1.125rem;
    }
    
    .doc-header h1 {
        font-size: 2rem;
    }
    
    .content-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .card {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .content-wrapper {
        padding: 0.75rem;
        padding-top: 4.5rem;
    }
    
    .hero h1 {
        font-size: 1.75rem;
    }
    
    .doc-header h1 {
        font-size: 1.75rem;
    }
}

/* GitHub Alerts Styles */
.markdown-alert {
    padding: 1rem 1rem 1rem 1rem;
    margin-bottom: 1rem;
    border-left: 4px solid;
    border-radius: var(--border-radius);
    background-color: var(--surface);
}

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

.markdown-alert-title svg {
    width: 1.25rem;
    height: 1.25rem;
}

.markdown-alert-note {
    border-left-color: #0969da;
    background-color: #ddf4ff;
}

.markdown-alert-note .markdown-alert-title {
    color: #0969da;
}

.markdown-alert-tip {
    border-left-color: #1a7f37;
    background-color: #dafbe1;
}

.markdown-alert-tip .markdown-alert-title {
    color: #1a7f37;
}

.markdown-alert-important {
    border-left-color: #8250df;
    background-color: #fbefff;
}

.markdown-alert-important .markdown-alert-title {
    color: #8250df;
}

.markdown-alert-warning {
    border-left-color: #9a6700;
    background-color: #fff8c5;
}

.markdown-alert-warning .markdown-alert-title {
    color: #9a6700;
}

.markdown-alert-caution {
    border-left-color: #d1242f;
    background-color: #ffebe9;
}

.markdown-alert-caution .markdown-alert-title {
    color: #d1242f;
}

.markdown-alert p:last-child {
    margin-bottom: 0;
}