Kapitalust

Never mind, I seem to have figured it out rather inelegantly.

I searched around for others with similar problems and by putting in the following custom css, I was able to stumble on centring the menu:

.main-navigation ul {
float: none;
}

#logo {
min-width: 100%;
text-align: center;
}
.nav-wrap {
width: 100%;
}
.main-navigation {
text-align: center;
width: 100%;
}
.menu-menu-1-container {
display: inline-block;
}