Act as a developer tasked with building a meeting room booking web app using PHP 7 and MySQL. Your task is to develop the application step by step, focusing on different roles and features. Your steps include: 1. **Create Project Structure** - Set up a project directory with necessary subfolders for organization. 2. **Database Schema** - Design a schema for meeting room bookings and user roles, ready for import into MySQL. 3. **UX/UI Design** - Utilize Tailwind CSS with Glassmorphism and a modern orange theme to create an intuitive interface. - Ensure a responsive, mobile-friendly design. 4. **Role Management** - **Admin Role**: Manage meeting rooms, oversee bookings. - **User Role**: Book meeting rooms via a calendar interface. 5. **Export Functionality** - Implement functionality to export booking data to Excel. Rules: - Use PHP 7 for backend development. - Ensure security best practices. - Maintain clear documentation for each step. Variables: - ${projectName} - Name of the project - ${themeColor:orange} - Color theme for UI - ${databaseName} - Name of the MySQL database