   /* Footer Styles */
        .footer {
            background-color: #f8f8f8;
            padding: 40px 20px;
            margin-top: 40px;
            border-top: 1px solid #e0e0e0;
            transition: background-color 0.3s, color 0.3s;
        }

        .dark-mode .footer {
            background-color: #333;
            color: #f0f0f0;
            border-top: 1px solid #444;
        }

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

        .footer-title {
            text-align: center;
            margin-bottom: 25px;
            font-size: 1.8rem;
            color: #4285f4;
        }

        .dark-mode .footer-title {
            color: #80aeff;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 15px;
        }

        .footer-category {
            flex: 1 1 200px;
            margin-bottom: 20px;
            max-width: 300px;
        }

        .category-title {
            font-size: 1.2rem;
            margin-bottom: 15px;
            padding-bottom: 5px;
            border-bottom: 2px solid #4285f4;
            color: #333;
        }

        .dark-mode .category-title {
            color: #f0f0f0;
            border-bottom: 2px solid #80aeff;
        }

        .links-list {
            list-style: none;
            padding: 0;
        }

        .links-list li {
            margin-bottom: 10px;
        }

        .links-list a {
            color: #555;
            text-decoration: none;
            transition: color 0.2s;
            display: inline-block;
            padding: 3px 0;
        }

        .dark-mode .links-list a {
            color: #bbb;
        }

        .links-list a:hover {
            color: #4285f4;
            text-decoration: underline;
        }

        .dark-mode .links-list a:hover {
            color: #80aeff;
        }

        .footer-bottom {
            text-align: center;
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid #e0e0e0;
            color: #777;
            font-size: 0.9rem;
        }

        .dark-mode .footer-bottom {
            border-top: 1px solid #444;
            color: #999;
        }

        @media (max-width: 768px) {
            .footer-links {
                flex-direction: column;
                align-items: center;
            }
            
            .footer-category {
                width: 100%;
                max-width: 100%;
                text-align: center;
            }
        }
