INTERVAL INFERNO — Interactive HIIT Timer & Custom Workout Companion

Product Description

Turn up the heat on your fitness routine with INTERVAL INFERNO — an all-in-one, browser-based High-Intensity Interval Training (HIIT) app designed to make sweating fast, fun, and brutally effective!

Whether you’re looking for a quick 4-minute Tabata or a full-body 12-round burner, Interval Inferno combines an ultra-clear visual timer, built-in workout routines, live audio cues, and witty coaching commentary to guide you through every single rep.

How It Works (Step-by-Step)

1. Enter Your Name & Lock In: Start by typing your name in the input box to unlock custom-tailored, hilarious, and motivational coaching messages throughout your workout.
2. Choose Your Preset Routine: Pick from 5 pre-programmed workouts:

• The Classic Tabata: 4 minutes of classic 20s Work / 10s Rest
• Leg Day Lite (It Isn't): Lower-body quads & glutes burner
• Core Meltdown: Targeted abs and obliques routine
• Full-Body Firestorm: Cardio and strength combined
• The Inferno (Serious): Advanced 40s Work / 20s Rest for 12 rounds

1. Customize Your Timing (Optional): Want a custom challenge? Adjust the Work duration, Rest duration, and total number of Rounds to match your exact fitness level.
2. Hit START & Follow the Clock:

• Visual Stage: The timer screen dynamically changes color (Red for WORK 🔥, Green for REST 🍃, Yellow for READY ⏱️).
• Live Exercise Guidance: Shows the current exercise name, clear technique cues, and a preview of what exercise is coming up next.
• Audio Cues: Features built-in countdown beeps so you know exactly when to push and when to pause without having to stare at the screen.

1. Track Your Progress: Every completed workout automatically logs to "The Furnace" dashboard, tracking your total completed infernos over time.

Key Features

• ⚡ Zero Equipment Required: All pre-programmed routines rely on bodyweight exercises (burpees, squats, mountain climbers, planks) you can do anywhere.
• 🔊 WebAudio Sound Cues: Built-in beeps alert you to phase changes and countdowns — toggle sound on or off with a single tap.
• 🧠 No Memory Overhead: Built-in local storage automatically saves your name, sound preferences, and workout history so you can pick up right where you left off.
• 🌶️ Interactive Comedy & Roasts: Features a built-in "Roast Me" button and mid-workout commentary to keep you entertained while your muscles burn.
• 📱 100% Mobile & Responsive: Clean, single-file HTML/CSS/JS application that runs smoothly on any smartphone, tablet, or desktop web browser.