Web-Based Resort Booking System

I need a web-application that lets guests reserve rooms at my resort quickly and reliably. The focus is strictly on room booking, so everything you build should flow toward a smooth reservation experience—from showing real-time availability through to confirmation and receipt.

Because this will run entirely on the web, the interface must adapt gracefully to desktop and mobile browsers, but I am not looking for a separate mobile app. A clean, modern front end, a secure back end, and an intuitive admin panel where I can add rooms, set seasonal rates, block dates, and export reports will cover my operational needs.

If you have experience delivering similar booking engines for hospitality, please outline your proposed tech stack, timeline, and any past examples when you respond.