added solution

[Rad1stik]

• DEMO LINK

Keyframes implemented using from/to + transform with rotate property
Stopwatch is centered and has the correct arrows size
All Typical Mistakes from the BEM lesson theory are checked.
Code follows all the Code Style Rules ❗️

[mateacademy-ai-mentor]

Review Summary

Here is my approval: your stopwatch meets all core requirements and functions correctly. The HTML uses proper BEM naming for elements and modifiers (e.g., stopwatch, stopwatch__hand--minute, stopwatch__hand--second, stopwatch__center, and stopwatch--speed-up). The layout is correctly centered with flexbox, the sizing (80vmin) is accurate, and the specified colors are applied to the minute hand (blue), second hand (green), and center (orange). Animations are CSS-only with correct keyframes (from/to using transform: rotate(...)), and timing is set appropriately: minute hand uses steps(60) over 3600s and second hand is linear over 60s. The speed-up modifier properly reduces durations to 600s and 10s, overriding the base animations as intended. Nicely done following BEM consistently and implementing the modifier cleanly. Keep up the solid structure and clarity!

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