:root {
    --primary-color: #4a90e2;
    --secondary-color: #50c878;
    --dark-bg: #1a1a2e;
    --darker-bg: #0f0f1e;
    --light-bg: #f5f7fa;
    --text-color: #333;
    --text-light: #666;
    --code-bg: #282c34;
    --border-color: #e1e4e8;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.15);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #fff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navbar */
.navbar {
    background: var(--dark-bg);
    color: white;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo {
    width: 32px;
    height: 32px;
}

.brand-name {
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: white;
    text-decoration: none;
    transition: color 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-color);
}

/* Hero */
.hero {
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--darker-bg) 100%);
    color: white;
    padding: 6rem 0;
    text-align: center;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.tagline {
    font-size: 1.5rem;
    color: #ccc;
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

.btn {
    padding: 0.8rem 2rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    transition: transform 0.2s, box-shadow 0.2s;
    display: inline-block;
}

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

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

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

/* Features */
.features {
    padding: 4rem 0;
    background: var(--light-bg);
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--dark-bg);
}

.feature-card p {
    color: var(--text-light);
}

/* Code Example */
.code-example {
    padding: 4rem 0;
}

.code-example h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 2rem;
}

.code-showcase {
    background: var(--code-bg);
    border-radius: 8px;
    padding: 2rem;
    overflow-x: auto;
    box-shadow: var(--shadow-lg);
}

.code-showcase pre {
    margin: 0;
}

.code-showcase code {
    color: #abb2bf;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Code Highlighting */
.keyword { color: #c678dd; }
.function { color: #61afef; }
.string { color: #98c379; }
.number { color: #d19a66; }
.comment { color: #5c6370; font-style: italic; }
.type { color: #e5c07b; }

/* Getting Started */
.getting-started {
    padding: 4rem 0;
    background: var(--light-bg);
}

.getting-started h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.step {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.step-number {
    background: var(--primary-color);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    flex-shrink: 0;
}

.step-content {
    width: 100%;
}

.step-content h3 {
    margin-bottom: 0.5rem;
    color: var(--dark-bg);
    font-size: 1.4rem;
}

.step-content p {
    color: #7f8c8d;
    margin-bottom: 0.5rem;
}

.step-content code {
    background: var(--code-bg);
    color: #e06c75;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.9em;
}

.step pre {
    background: var(--code-bg);
    color: #abb2bf;
    padding: 1rem;
    border-radius: 4px;
    overflow-x: auto;
    font-size: 0.9rem;
    line-height: 1.6;
}

.step code {
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
}

/* Performance */
.performance {
    padding: 4rem 0;
}

.performance h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.benchmark-grid {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.benchmark-card {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.benchmark-card h3 {
    min-width: 100px;
    margin: 0;
}

.benchmark-time {
    min-width: 80px;
    font-weight: bold;
    color: var(--text-light);
}

.benchmark-bar {
    height: 30px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 4px;
    transition: width 0.5s;
    max-width: 100%;
}

.benchmark-card.lua .benchmark-bar {
    background: linear-gradient(90deg, #e74c3c, #c0392b);
    width: 50% !important;
}

/* Footer */
.footer {
    background: var(--dark-bg);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

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

.footer a:hover {
    text-decoration: underline;
}

/* Documentation Page */
.docs-container {
    display: flex;
    max-width: 1400px;
    margin: 0 auto;
    min-height: calc(100vh - 200px);
}

.sidebar {
    width: 250px;
    background: var(--light-bg);
    padding: 2rem;
    position: sticky;
    top: 60px;
    max-height: calc(100vh - 80px);
    overflow-y: auto;
    border-right: 1px solid var(--border-color);
}

.sidebar h3 {
    margin-bottom: 1rem;
    color: var(--dark-bg);
}

.sidebar-nav {
    list-style: none;
}

.sidebar-nav li {
    margin-bottom: 0.5rem;
}

.sidebar-nav a {
    color: var(--text-color);
    text-decoration: none;
    display: block;
    padding: 0.5rem;
    border-radius: 4px;
    transition: background 0.2s;
}

.sidebar-nav a:hover {
    background: white;
    color: var(--primary-color);
}

.docs-content {
    flex: 1;
    padding: 2rem 3rem;
    max-width: 900px;
}

.docs-content h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--dark-bg);
}

.intro {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.doc-section {
    margin-bottom: 3rem;
}

.doc-section h2 {
    font-size: 2rem;
    margin-top: 2rem;
    margin-bottom: 1.5rem;
    color: var(--dark-bg);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.doc-section h3 {
    font-size: 1.3rem;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--dark-bg);
}

.function-doc {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--light-bg);
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

.function-doc h3 {
    margin-top: 0;
}

.function-doc h3 code {
    background: white;
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    font-size: 0.9rem;
    color: var(--primary-color);
}

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

.code-block {
    background: var(--code-bg);
    border-radius: 6px;
    padding: 1.5rem;
    overflow-x: auto;
    margin: 1rem 0;
}

.code-block pre {
    margin: 0;
}

.code-block code {
    color: #abb2bf;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .tagline {
        font-size: 1.2rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .feature-grid,
    .steps {
        grid-template-columns: 1fr;
    }

    .docs-container {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        position: static;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }

    .docs-content {
        padding: 2rem 1rem;
    }

    .nav-links {
        gap: 1rem;
        font-size: 0.9rem;
    }
}