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

body {
    background-color: #0d1117;
    color: #c9d1d9;
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
    font-size: 12px;
    line-height: 1.45;
    overflow-x: auto;
}

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

.navigation {
    border-bottom: 1px solid #21262d;
    margin-bottom: 20px;
    padding-bottom: 10px;
}

.nav-btn {
    background: none;
    border: none;
    color: #7d8590;
    cursor: pointer;
    font-family: inherit;
    font-size: 12px;
    margin-right: 20px;
    padding: 5px 0;
    text-decoration: none;
    transition: color 0.2s ease;
}

.nav-btn:hover {
    color: #c9d1d9;
}

.nav-btn.active {
    color: #58a6ff;
    border-bottom: 2px solid #58a6ff;
}

.section {
    display: none;
}

.section.active {
    display: block;
}

h1 {
    color: #f0f6fc;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid #21262d;
}

pre {
    background-color: #0d1117;
    color: #c9d1d9;
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
    font-size: 12px;
    line-height: 1.45;
    white-space: pre-wrap;
    word-wrap: break-word;
    padding: 0;
    margin: 0;
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #0d1117;
}

::-webkit-scrollbar-thumb {
    background: #30363d;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #484f58;
}