:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --code-bg: #1e293b;
    --sidebar-width: 280px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

.container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 1000;
    transition: transform 0.3s ease;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sidebar-header h2 {
    font-size: 1.25rem;
    color: var(--text-primary);
}

.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.25rem;
    cursor: pointer;
}

.search-box {
    padding: 1rem 1.5rem;
    position: relative;
}

.search-box input {
    width: 100%;
    padding: 0.625rem 2.5rem 0.625rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-size: 0.875rem;
}

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

.search-box i {
    position: absolute;
    right: 2.5rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.sidebar-nav {
    padding: 1rem 0;
}

.nav-section {
    margin-bottom: 1.5rem;
}

.nav-section h3 {
    padding: 0.5rem 1.5rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-muted);
    font-weight: 600;
    letter-spacing: 0.05em;
}

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

.nav-section ul li a {
    display: block;
    padding: 0.5rem 1.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: all 0.2s;
}

.nav-section ul li a:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.nav-section ul li a.active {
    background: var(--bg-tertiary);
    color: var(--primary-color);
    border-left: 3px solid var(--primary-color);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

.top-bar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.25rem;
    cursor: pointer;
}

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

.content {
    padding: 2rem;
    max-width: 900px;
}

/* Welcome Section */
.welcome-section h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.welcome-content h2 {
    font-size: 2rem;
    margin: 2rem 0 1rem;
    color: var(--text-primary);
}

.welcome-content h3 {
    font-size: 1.5rem;
    margin: 1.5rem 0 1rem;
    color: var(--text-primary);
}

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

.welcome-content ul {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.welcome-content ul li {
    margin: 0.5rem 0;
    color: var(--text-secondary);
}

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

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

.footer-text {
    margin-top: 2rem;
    font-style: italic;
    color: var(--text-muted);
}

/* Documentation Content */
.doc-content h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.doc-content h2 {
    font-size: 1.875rem;
    margin: 2rem 0 1rem;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.doc-content h3 {
    font-size: 1.5rem;
    margin: 1.5rem 0 1rem;
    color: var(--text-primary);
}

.doc-content p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.doc-content ul, .doc-content ol {
    margin: 1rem 0;
    padding-left: 2rem;
    color: var(--text-secondary);
}

.doc-content li {
    margin: 0.5rem 0;
}

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

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

.doc-content code {
    background: var(--code-bg);
    padding: 0.2rem 0.4rem;
    border-radius: 0.25rem;
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
    color: #e879f9;
}

.doc-content pre {
    background: var(--code-bg);
    padding: 1rem;
    border-radius: 0.5rem;
    overflow-x: auto;
    margin: 1rem 0;
    border: 1px solid var(--border-color);
}

.doc-content pre code {
    background: none;
    padding: 0;
    color: var(--text-primary);
}

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

.doc-content hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 2rem 0;
}

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

/* Info boxes */
.info-box {
    padding: 1rem;
    border-radius: 0.5rem;
    margin: 1rem 0;
    border-left: 4px solid;
}

.info-box.note {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--primary-color);
}

.info-box.warning {
    background: rgba(251, 191, 36, 0.1);
    border-color: #fbbf24;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .sidebar-toggle {
        display: block;
    }

    .main-content {
        margin-left: 0;
    }

    .mobile-menu-btn {
        display: block;
    }

    .content {
        padding: 1rem;
    }

    .welcome-section h1,
    .doc-content h1 {
        font-size: 2rem;
    }
}

/* Scrollbar */
.sidebar::-webkit-scrollbar {
    width: 6px;
}

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

.sidebar::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--border-color);
}