:root {
    --primary-color: #2563eb;
    --secondary-color: #64748b;
    --background-color: #ffffff;
    --text-color: #1e293b;
    --code-background: #f8fafc;
    --border-color: #e2e8f0;
    --hover-background: #f1f5f9;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    margin: 0;
    padding: 0;
    max-width: none;
}

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

.content-wrapper {
    display: flex;
    gap: 30px;
    flex: 1;
}

.main-content {
    flex: 1;
    min-width: 0;
}

.sidebar {
    width: 250px;
    flex-shrink: 0;
    position: sticky;
    top: 20px;
    height: calc(100vh - 40px);
    overflow-y: auto;
    padding-right: 10px;
}

header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 20px;
    margin-bottom: 30px;
}

h1 {
    color: var(--text-color);
    border-bottom: none;
    padding-bottom: 0;
    margin: 0 0 10px 0;
}

.subtitle {
    color: var(--secondary-color);
    font-size: 1.1em;
    margin-bottom: 20px;
}

.badges {
    margin-top: 15px;
}

.badges img {
    margin-right: 10px;
    margin-bottom: 5px;
}

.nav-links {
    display: flex;
    gap: 20px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.nav-link {
    background: var(--code-background);
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-color);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link:hover {
    background: var(--hover-background);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

h2 {
    color: var(--text-color);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
    margin-top: 40px;
}

h3 {
    color: var(--text-color);
    margin-top: 30px;
}

pre {
    background: var(--code-background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    overflow-x: auto;
    margin: 20px 0;
}

code {
    background: var(--code-background);
    padding: 0.2em 0.4em;
    border-radius: 4px;
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 0.9em;
    border: 1px solid var(--border-color);
}

pre code {
    background: none;
    padding: 0;
    border: none;
    font-size: 0.9em;
    display: block;
    white-space: pre;
}

blockquote {
    border-left: 4px solid var(--primary-color);
    padding: 15px 20px;
    margin: 20px 0;
    background: var(--code-background);
    border-radius: 0 8px 8px 0;
}

table {
    border-collapse: collapse;
    width: 100%;
    margin: 20px 0;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

th, td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background: var(--code-background);
    font-weight: 600;
}

ul, ol {
    padding-left: 20px;
}

li {
    margin: 5px 0;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.feature-card {
    background: var(--code-background);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.feature-card h3 {
    margin-top: 0;
    color: var(--primary-color);
}

footer {
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
    margin-top: 40px;
    text-align: center;
    color: var(--secondary-color);
}

@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .content-wrapper {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        position: static;
    }
    
    .nav-links {
        flex-direction: column;
        gap: 10px;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
}

/* TOC Styles */
.toc-container {
    background: var(--code-background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
}

.toc-container h3 {
    margin-top: 0;
    color: var(--primary-color);
    font-size: 1.1em;
}

.toc {
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.toc li {
    margin: 4px 0;
}

.toc li a {
    color: var(--text-color);
    text-decoration: none;
    transition: all 0.2s ease;
    display: block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.9em;
}

.toc li a:hover {
    background-color: var(--hover-background);
    color: var(--primary-color);
}

.toc .toc-level2 {
    padding-left: 16px;
    margin-left: 0;
}

.toc .toc-level3 {
    padding-left: 32px;
    margin-left: 0;
}

.toc .toc-level4 {
    padding-left: 48px;
    margin-left: 0;
}

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

/* Code Syntax Highlighting */
/* Deprecated - kept for backward compatibility */
pre code .tok-keyword { color: #0000ff; font-weight: bold; }
pre code .tok-string { color: #008000; }
pre code .tok-number { color: #ff0000; }
pre code .tok-comment { color: #808080; font-style: italic; }
pre code .tok-type { color: #2b91af; }
pre code .tok-function { color: #795e26; }
pre code .tok-operator { color: #000000; }
pre code .tok-variable { color: #001080; }

/* Pandoc syntax highlighting classes (main) */
pre.sourceCode .kw { color: #0000ff; font-weight: bold; }    /* keyword */
pre.sourceCode .dt { color: #2b91af; }                      /* data type */
pre.sourceCode .dv { color: #ff0000; }                      /* number value */
pre.sourceCode .bn { color: #ff0000; }                      /* number base */
pre.sourceCode .fl { color: #ff0000; }                      /* float */
pre.sourceCode .ch { color: #008000; }                      /* char */
pre.sourceCode .st { color: #008000; }                      /* string */
pre.sourceCode .co { color: #808080; font-style: italic; }  /* comment */
pre.sourceCode .ot { color: #8b0000; }                      /* other token */
pre.sourceCode .al { color: #ff4500; font-weight: bold; }  /* alert */
pre.sourceCode .fu { color: #795e26; }                      /* function */
pre.sourceCode .er { color: #ff0000; font-weight: bold; }  /* error */
pre.sourceCode .wa { color: #ffa500; font-weight: bold; }  /* warning */
pre.sourceCode .cn { color: #0000ff; }                      /* constant */
pre.sourceCode .sc { color: #a31515; }                      /* special char */
pre.sourceCode .im { color: #008000; }                      /* import/include */
pre.sourceCode .pp { color: #0000ff; }                      /* preprocessor */
pre.sourceCode .op { color: #000000; }                      /* operator */
pre.sourceCode .bu { color: #795e26; }                      /* builtin */
pre.sourceCode .ex { color: #d73a49; }                      /* exception */
pre.sourceCode .cf { color: #0000ff; font-weight: bold; }  /* control flow */
pre.sourceCode .do { color: #458; }                        /* doxygen */
pre.sourceCode .cv { color: #0e84b5; }                      /* class variable */
pre.sourceCode .in { color: #6a6a6a; }                      /* initializer */