/* Header */
.header {
    padding: 5rem 0 2rem;
    border-bottom: 1px solid #e5e7eb;
    background: #f9fafb;
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 0.5rem;
}

.last-updated {
    color: #6b7280;
    font-size: 0.9rem;
}

/* Main Layout */
.main-layout {
    display: flex;
    gap: 3rem;
    padding: 2rem 0;
    align-items: flex-start;
}

/* Sidebar Navigation */
.sidebar {
    width: 280px;
    flex-shrink: 0;
    position: sticky;
    top: 120px;
}

.sidebar-nav {
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 1.5rem;
}

.sidebar-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #111827;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #e5e7eb;
}

.sidebar-menu {
    list-style: none;
}

.sidebar-menu li {
    margin-bottom: 0.5rem;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0.75rem;
    color: #6b7280;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.2s ease;
    font-size: 0.9rem;
}

.sidebar-menu a i {
    width: 16px;
    text-align: center;
    font-size: 0.9rem;
}

.sidebar-menu a:hover {
    background: #e5e7eb;
    color: #374151;
}

.sidebar-menu a.active {
    background: #2563eb;
    color: white;
}

/* Content */
.content {
    flex: 1;
    min-width: 0;
}

.section {
    margin-bottom: 3rem;
    scroll-margin-top: 120px;
}

.section h2 {
    font-size: 1.75rem;
    font-weight: 600;
    color: #111827;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #e5e7eb;
}

.section h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #374151;
    margin: 1.5rem 0 0.75rem;
}

.section p {
    margin-bottom: 1rem;
    color: #4b5563;
}

.section ul {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.section li {
    margin-bottom: 0.5rem;
    color: #4b5563;
}

.section strong {
    color: #111827;
}

/* Responsive */
@media (max-width: 1024px) {
    .main-layout {
        flex-direction: column;
        gap: 2rem;
    }
    
    .sidebar {
        width: 100%;
        position: static;
    }
    
    .sidebar-nav {
        padding: 1rem;
    }
    
    .sidebar-menu {
        display: flex;
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .sidebar-menu li {
        margin-bottom: 0;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .sidebar-menu {
        flex-direction: column;
    }
}