The CSS that needs to be changed to fix the alignment of your social buttons in your header is in a file named: theme.min.css
located in this directory: /wp-content/themes/akita/assets/css
The theme.min.css file is minified, meaning it is hard to read/edit because all of the whitespace has been removed. I recommend using FTP to connect to your web host, and download of the /wp-content/themes/akita/assets/css/theme.min.css file.
Save yourself a backup of the theme.min.css file, naming it something like theme.min-backup.css.
Open the theme.min.css file in your favorite text editor and at the end of the file paste this:
#branding .header-addon-with-text {
margin-top: 0;
}
Replace the edited theme.min.css file via FTP, and test.