Nucleare By CrestaProject is a classic blog theme with a crisp, elegant design and plenty of handy features. A built-in search box, links to your favorite social networks, four widget areas, and beautifully styled post formats make this an ideal theme for your personal blog. You can check the demo of Nucleare by CrestaProject.
You can download Nucleare theme for your personal use.
Also you can download Nucleare Child theme for any sort of modifications.
If you have any question or changes in mind feel free to ask me in comments section