I could code this to look really great & modern, as well as responsive, so, for example, on mobile phones/tablets it would look good as well.
I would work with the following technologies: node.js/php for back-end (preferred node.js), react.js/vanilla js for front-end (preferred react.js), css and html.
For clearing: it's quite easy to achieve that, so it's totally possible to have it auto clear.
It's quite easy to do, so it would not take me a lot of time to complete.
I can host everything (including database) for free in a cloud service such as heroku - it's great for such kind of applications.
Feel free to message me, if you have any questions :)
You can check my portfolio website if you'd like (it's a bit out-dated): [login to view URL]
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side note:
I can probably complete this project in about 3-4 hours