:root {
    --bg-color: #1a1a1a;
    --text-color: #ffffff;
    --accent-color: #2c2c2c;
    --accent-hover: #3a3a3a80;
    --border-color: #333;
    --input-bg: #2d2d2d;
    --hover-color: #3d3d3d80;
    --selected-color: #404040;
    --link-color: #4a9eff;
    --link-hover: #6fb5ff;
    --code-bg: #2a2a2a;
}

section, header, [id] {
    scroll-margin-top: 80px;
}

.container {
    display: flex;
}

/* Sidebar / Table of Contents */
.sidebar {
    width: 250px;
    position: sticky;
    top: 100px;
    height: calc(100vh - 120px);
    padding-right: 20px;
    overflow-y: auto;
    border-right: 1px solid var(--border-color);
}

.sidebar h3 {
    margin-top: 0;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

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

.toc ul ul {
    padding-left: 20px;
}

.toc li {
    margin-bottom: 10px;
}

.toc a {
    color: var(--text-color);
    text-decoration: none;
    display: block;
    padding: 5px 10px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

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

/* Main content */
.content {
    flex: 1;
    padding-left: 30px;
}

.markdown-body h1 {
    font-size: 2.5em;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
}

.markdown-body h2 {
    font-size: 1.8em;
    margin-top: 40px;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

.markdown-body h3 {
    font-size: 1.4em;
    margin-top: 30px;
    margin-bottom: 15px;
}

.markdown-body p {
    margin-bottom: 20px;
}

.markdown-body a {
    color: var(--link-color);
    text-decoration: none;
    transition: color 0.2s;
}

.markdown-body a:hover {
    color: var(--link-hover);
    text-decoration: underline;
}

.markdown-body ul, .markdown-body ol {
    padding-left: 25px;
    margin-bottom: 20px;
}

.markdown-body li {
    margin-bottom: 8px;
}

.markdown-body code {
    background-color: var(--code-bg);
    padding: 2px 5px;
    border-radius: 3px;
    font-family: monospace;
}

.markdown-body pre {
    background-color: var(--code-bg);
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    margin-bottom: 20px;
}

.markdown-body pre code {
    background-color: transparent;
    padding: 0;
}

.markdown-body blockquote {
    border-left: 4px solid var(--accent-hover);
    padding-left: 15px;
    margin-left: 0;
    color: #aaa;
}

h2, h3 {
    text-align: left;
}

@media (max-width: 768px) {
    .container {
        flex-direction: column;
    }

    .sidebar {
        position: initial;
        height: auto;
        width: 100%;
        padding: 0;
        border-right: 0;
        border-bottom: 1px solid var(--border-color);
    }

    .content {
        padding-left: 0;
    }
}