.navigation { width: 250px; background-color: #f8f9fa; padding: 20px; border-right: 1px solid #dee2e6; } .nav-brand { font-size: 1.5rem; font-weight: bold; margin-bottom: 20px; } .nav-items { list-style: none; padding: 0; } .nav-items li { margin-bottom: 10px; } .nav-items a { text-decoration: none; color: #333; } .nav-items a:hover { color: #007bff; }