body {
            margin: 0;
            font-family: Arial, sans-serif;
            background-color: #f4f4f4;
            color: #333;
        }

        header {
            background-color: #222;
            color: white;
            text-align: center;
            padding: 40px 20px;
        }

        nav {
            background-color: #444;
            text-align: center;
            padding: 10px;
        }

        nav a {
            color: white;
            text-decoration: none;
            margin: 0 15px;
        }

        nav a:hover {
            color: #00bcd4;
        }

        section {
            padding: 40px 20px;
            max-width: 900px;
            margin: auto;
        }

        footer {
            background-color: #222;
            color: white;
            text-align: center;
            padding: 20px;
        }

        .project-card {
            background-color: white;
            padding: 20px;
            margin-bottom: 20px;
            border-radius: 8px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        }