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

:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --text-color: #333;
    --bg-color: #ecf0f1;
    --sidebar-width: 250px;
    --border-color: #bdc3c7;
}

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

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

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--primary-color);
    color: white;
    padding: 20px;
    overflow-y: auto;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
}

.wiki-title {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--secondary-color);
}

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

.nav-menu li {
    margin-bottom: 10px;
}

.nav-menu a {
    color: #ecf0f1;
    text-decoration: none;
    display: block;
    padding: 8px 12px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.nav-menu a:hover,
.nav-menu a.active {
    background-color: var(--secondary-color);
    padding-left: 16px;
}

/* Main Content */
.content {
    flex: 1;
    padding: 40px;
    background-color: white;
    overflow-y: auto;
    max-width: 900px;
}

article {
    line-height: 1.8;
}

/* Markdown Styling */
h1 {
    color: var(--primary-color);
    margin: 30px 0 20px 0;
    border-bottom: 3px solid var(--secondary-color);
    padding-bottom: 10px;
}

h2 {
    color: var(--primary-color);
    margin: 25px 0 15px 0;
}

h3 {
    color: var(--primary-color);
    margin: 20px 0 10px 0;
}

p {
    margin-bottom: 15px;
}

a {
    color: var(--secondary-color);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s ease;
}

a:hover {
    border-bottom: 1px solid var(--secondary-color);
}

code {
    background-color: #f4f4f4;
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    font-size: 14px;
}

pre {
    background-color: #2c3e50;
    color: #ecf0f1;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    margin: 20px 0;
}

pre code {
    background-color: transparent;
    padding: 0;
    color: #ecf0f1;
}

blockquote {
    border-left: 4px solid var(--secondary-color);
    padding-left: 15px;
    margin: 20px 0;
    color: #666;
    font-style: italic;
}

ul, ol {
    margin: 15px 0;
    padding-left: 30px;
}

li {
    margin-bottom: 8px;
}

table {
    border-collapse: collapse;
    width: 100%;
    margin: 20px 0;
}

th, td {
    border: 1px solid var(--border-color);
    padding: 10px;
    text-align: left;
}

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

tr:nth-child(even) {
    background-color: #f9f9f9;
}

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

    .sidebar {
        width: 100%;
        max-height: 200px;
    }

    .content {
        padding: 20px;
    }
}