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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f5f5f5;
}

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

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 60px 20px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
    font-weight: 700;
}

header p {
    font-size: 1.2em;
    opacity: 0.95;
}

.nav-container {
    background: white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
}

nav ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

nav a {
    color: #667eea;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 5px;
    transition: all 0.3s;
    font-weight: 500;
}

nav a:hover, nav a.active {
    background: #667eea;
    color: white;
}

main {
    background: white;
    margin: 30px auto;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    max-width: 1200px;
}

main h1 {
    color: #667eea;
    font-size: 2.2em;
    margin-bottom: 20px;
    border-bottom: 3px solid #667eea;
    padding-bottom: 10px;
}

main h2 {
    color: #667eea;
    font-size: 1.8em;
    margin-top: 40px;
    margin-bottom: 20px;
}

main h3 {
    color: #555;
    font-size: 1.4em;
    margin-top: 30px;
    margin-bottom: 15px;
}

main h4 {
    color: #666;
    font-size: 1.2em;
    margin-top: 20px;
    margin-bottom: 10px;
}

.intro-text {
    font-size: 1.1em;
    color: #666;
    margin-bottom: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 5px;
}

.content-section {
    margin-bottom: 40px;
}

.content-section p {
    margin-bottom: 15px;
    color: #555;
}

.content-section ul, .content-section ol {
    margin-left: 30px;
    margin-bottom: 20px;
    color: #555;
}

.content-section li {
    margin-bottom: 10px;
}

.content-section a {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
}

.content-section a:hover {
    text-decoration: underline;
}

pre {
    background: #2d2d2d;
    color: #f8f8f2;
    padding: 20px;
    border-radius: 5px;
    overflow-x: auto;
    margin: 20px 0;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9em;
    line-height: 1.5;
}

code {
    background: #f4f4f4;
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9em;
    color: #e83e8c;
}

pre code {
    background: transparent;
    padding: 0;
    color: #f8f8f2;
}

.info-box {
    background: #d1ecf1;
    border-left: 4px solid #0c5460;
    padding: 15px 20px;
    margin: 20px 0;
    border-radius: 5px;
}

.info-box strong {
    color: #0c5460;
}

.warning-box {
    background: #fff3cd;
    border-left: 4px solid #ffc107;
    padding: 15px 20px;
    margin: 20px 0;
    border-radius: 5px;
}

.warning-box strong {
    color: #856404;
}

.success-box {
    background: #d4edda;
    border-left: 4px solid #28a745;
    padding: 15px 20px;
    margin: 20px 0;
    border-radius: 5px;
}

.success-box strong {
    color: #155724;
}

.error-box {
    background: #f8d7da;
    border-left: 4px solid #dc3545;
    padding: 15px 20px;
    margin: 20px 0;
    border-radius: 5px;
}

.error-box strong {
    color: #721c24;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background: white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

table thead {
    background: #667eea;
    color: white;
}

table th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
}

table td {
    padding: 12px;
    border-bottom: 1px solid #e0e0e0;
}

table tbody tr:hover {
    background: #f8f9fa;
}

.env-var-table {
    overflow-x: auto;
    margin: 20px 0;
}

.prerequisites-list {
    display: grid;
    gap: 20px;
    margin: 20px 0;
}

.prerequisite-item {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 5px;
    border-left: 4px solid #667eea;
}

.prerequisite-item h3 {
    color: #667eea;
    margin-bottom: 10px;
}

.step-box {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 5px;
    margin: 20px 0;
    border-left: 4px solid #667eea;
}

.feature-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.feature-item {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 5px;
    border-left: 4px solid #667eea;
}

.file-tree {
    background: #2d2d2d;
    color: #f8f8f2;
    padding: 20px;
    border-radius: 5px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9em;
    overflow-x: auto;
    margin: 20px 0;
    line-height: 1.8;
}

.file-tree > div {
    display: block;
    white-space: nowrap;
}

.file-tree .folder {
    color: #ffd700;
    font-weight: 600;
}

.file-tree .file {
    color: #9cdcfe;
}

.file-tree .indent {
    margin-left: 20px;
}

.file-tree .indent.indent {
    margin-left: 40px;
}

.file-tree .indent.indent.indent {
    margin-left: 60px;
}

footer {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 30px 20px;
    margin-top: 50px;
}

footer p {
    margin: 5px 0;
    opacity: 0.9;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 1.8em;
    }
    
    nav ul {
        flex-direction: column;
    }
    
    main {
        padding: 20px;
    }
    
    table {
        font-size: 0.85em;
    }
    
    pre {
        font-size: 0.8em;
        padding: 15px;
    }
}