body {
            font-family: 'Arial', sans-serif;
            background-color: #f9f9f9;
            margin: 0;
            padding: 0;
            color: #000;
        }
        .portfolio-section {
            padding: 50px 20px;
            background-color: #fff;
            text-align: center;
        }
        .portfolio-section h2 {
            font-size: 2.5em;
            margin-bottom: 10px;
            color: #004E7C;
        }
        .portfolio-section p {
            font-size: 1.2em;
            color: #000;
            margin-bottom: 40px;
        }
        .categories-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
        }
        .category {
            flex: 1 1 calc(33.333% - 40px);
            box-sizing: border-box;
            padding: 20px;
            background: #fff;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
            border-radius: 10px;
            text-align: center;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .category:hover {
            transform: translateY(-10px);
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
        }
        .category-icon {
            font-size: 50px;
            color: #004E7C;
            margin-bottom: 20px;
        }
        .category-title {
            font-size: 1.5em;
            margin: 10px 0;
            color: #6ED3CF;
        }
        .category-description {
            font-size: 1em;
            color: #000;
            margin-bottom: 20px;
        }
        .category-button {
            display: inline-block;
            padding: 10px 20px;
            background-color: #6ED3CF;
            color: white;
            text-decoration: none;
            border-radius: 5px;
            transition: background-color 0.3s;
        }
        .category-button:hover {
            background-color: #004E7C;
        }
        @media (max-width: 768px) {
            .category {
                flex: 1 1 100%;
            }
        }