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

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

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

/* Sidebar */
.sidebar {
    width: 280px;
    background: #42A8C0;
    color: white;
    position: fixed;
    top: 0;
    bottom: 0;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.2);
}

.sidebar-header h1 {
    font-size: 1.2em;
    font-weight: 600;
    margin-bottom: 5px;
}

.sidebar .subtitle {
    font-size: 0.85em;
    color: rgba(255,255,255,0.8);
    margin: 0;
}

.sidebar-section {
    padding: 15px 20px;
    flex: 1;
}

.sidebar-section h3 {
    font-size: 0.75em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.7);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(255,255,255,0.2);
    letter-spacing: 0.5px;
}

.sidebar-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-section li {
    margin-bottom: 8px;
}

.sidebar-section a {
    color: white;
    text-decoration: none;
    font-size: 0.9em;
    display: block;
    padding: 6px 10px;
    border-radius: 3px;
    transition: all 0.2s;
}

.sidebar-section a:hover {
    background: rgba(255,255,255,0.15);
    padding-left: 12px;
}

/* Content area */
.content {
    margin-left: 280px;
    padding: 40px;
    flex: 1;
}

.gitbook-hero {
    background: linear-gradient(135deg, #42A8C0 0%, #368ba3 100%);
    color: white;
    padding: 40px;
    border-radius: 8px;
    margin-bottom: 30px;
}

.gitbook-hero h1 {
    font-size: 2em;
    margin-bottom: 10px;
}

.gitbook-hero .tagline {
    font-size: 1.1em;
    opacity: 0.9;
    margin-bottom: 25px;
}

.quick-links {
    display: flex;
    gap: 15px;
}

.qlink {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 5px;
    text-decoration: none;
    color: white;
    font-weight: 500;
    transition: transform 0.2s;
}

.qlink:hover {
    transform: translateY(-2px);
}

.qlink-cissp {
    background: #2d7788;
}

.qlink-ai {
    background: #368ba3;
}

.section-container {
    background: white;
    border-radius: 8px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.section-container h2 {
    color: #2d7788;
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 2px solid #42A8C0;
}

.section-container p {
    color: #666;
    margin-bottom: 20px;
}

.file-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.file-table th {
    background: #f5f5f5;
    padding: 12px 15px;
    text-align: left;
    font-weight: 600;
    color: #555;
}

.file-table td {
    padding: 12px 15px;
    border-bottom: 1px solid #eee;
}

.file-table tr:hover {
    background: #f9f9f9;
}

.file-table a {
    color: #42A8C0;
    text-decoration: none;
    font-weight: 500;
}

.file-table a:hover {
    text-decoration: underline;
}

.domain-num, .file-num {
    color: #999;
    font-weight: 500;
}

.footer {
    text-align: center;
    padding: 20px;
    color: #999;
    font-size: 0.9em;
}

.footer a {
    color: #42A8C0;
    text-decoration: none;
}

@media (max-width: 768px) {
    .gitbook-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        position: relative;
        height: auto;
    }
    
    .sidebar-section {
        margin-bottom: 20px;
    }
    
    .content {
        margin-left: 0;
        padding: 20px;
    }
    
    .quick-links {
        flex-direction: column;
    }
    
    .gitbook-hero h1 {
        font-size: 1.5em;
    }
}