body { font-family: Arial; background: #f4f4f4; padding: 20px; }
        .container { background: white; padding: 20px; border-radius: 8px; max-width: 600px; margin: auto; box-shadow: 0 2px 10px rgba(0,0,0,0.1); }
        input, textarea { width: 100%; margin-bottom: 10px; padding: 10px; border: 1px solid #ccc; }
        button { background: #007bff; color: white; border: none; padding: 10px 20px; cursor: pointer; }