:root {
    --bg-main: #ffffff;
    --bg-sidebar: #f9f9f9;
    --text-main: #24292f;
    --text-muted: #57606a;
    --border: #d0d7de;
    --primary: #0969da;
    --code-bg: #f6f8fa;
    --callout-tip: #dafbe1;
    --callout-info: #ddf4ff;
    --callout-warning: #fff8c5;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

/* Sidebar */
.nav-sidebar {
    width: 260px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    padding: 24px;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header {
    margin-bottom: 32px;
}

.folder-name {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.toc ul {
    list-style: none;
}

.toc li {
    margin-bottom: 8px;
}

.toc a {
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.9rem;
    display: block;
    padding: 6px 12px;
    border-radius: 6px;
    transition: 0.2s;
}

.toc a:hover {
    background-color: rgba(0, 0, 0, 0.05);
    color: var(--text-main);
}

.toc a.active {
    background-color: var(--primary);
    color: #fff;
    font-weight: 600;
}

/* Main Content */
.markdown-content {
    flex: 1;
    max-width: 800px;
    margin: 0 auto;
    padding: 60px 40px;
}

.doc-header {
    margin-bottom: 48px;
}

.breadcrumbs {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.doc-header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.doc-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Typography */
h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 48px 0 24px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 32px 0 16px;
}

p {
    margin-bottom: 16px;
}

ul,
ol {
    margin-bottom: 16px;
    padding-left: 24px;
}

li {
    margin-bottom: 8px;
}

code {
    font-family: var(--font-mono);
    background-color: var(--code-bg);
    padding: 0.2em 0.4em;
    border-radius: 6px;
    font-size: 0.9em;
}

blockquote {
    border-left: 4px solid var(--border);
    padding-left: 16px;
    color: var(--text-muted);
    font-style: italic;
    margin: 24px 0;
}

/* Callouts */
.callout {
    padding: 16px;
    border-radius: 8px;
    margin: 24px 0;
    border: 1px solid transparent;
}

.callout-title {
    font-weight: 700;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.callout.tip {
    background-color: var(--callout-tip);
    border-color: rgba(0, 0, 0, 0.05);
}

.callout.info {
    background-color: var(--callout-info);
    border-color: rgba(0, 0, 0, 0.05);
}

.callout.warning {
    background-color: var(--callout-warning);
    border-color: rgba(0, 0, 0, 0.05);
}

/* Code Blocks */
.code-block {
    background-color: var(--code-bg);
    border-radius: 8px;
    margin: 24px 0;
    border: 1px solid var(--border);
    overflow: hidden;
}

.code-header {
    background-color: rgba(0, 0, 0, 0.03);
    padding: 8px 16px;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
}

pre {
    padding: 16px;
    overflow-x: auto;
}

pre code {
    background: transparent;
    padding: 0;
    font-size: 0.9rem;
}

/* Helpers */
.badge-status {
    background-color: #fff8c5;
    color: #9a6700;
    padding: 2px 8px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 700;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.text-danger {
    color: #cf222e;
}

.doc-footer {
    margin-top: 64px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.doc-footer hr {
    border: 0;
    border-top: 1px solid var(--border);
    margin-bottom: 24px;
}

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

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

/* Responsive */
@media (max-width: 768px) {
    .nav-sidebar {
        display: none;
    }

    .markdown-content {
        padding: 40px 24px;
    }

    .doc-header h1 {
        font-size: 2rem;
    }
}