body {
            font-family: Arial, sans-serif;
            line-height: 1.6;
            margin: 0;
            padding: 0;
            background-color: #f4f4f4;
            color: #333;
        }
        header {
            background: #333;
            color: #fff;
            padding: 2rem;
            text-align: center;
        }
        main {
            max-width: 600px;
            margin: 2rem auto;
            background: #fff;
            padding: 2rem;
            border-radius: 8px;
            box-shadow: 0 0 10px rgba(0,0,0,0.1);
        }
        h2 {
            border-bottom: 2px solid #f4f4f4;
            padding-bottom: 0.5rem;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: bold;
        }
        input, textarea {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 4px;
            box-sizing: border-box;
        }
        button {
            background: #333;
            color: #fff;
            padding: 0.8rem 1.5rem;
            border: none;
            border-radius: 4px;
            cursor: pointer;
        }
        button:hover {
            background: #555;
        }
        footer {
            text-align: center;
            padding: 1rem;
            color: #777;
            font-size: 0.9rem;
        }