Hi Heidi,
To make site logo and main navigation to be left aligned go to Appearance -> Customize -> Ambition Theme Options -> Custom CSS and paste the below CSS code then click on Save button.
@media only screen and (min-width: 768px) {
.hgroup-wrap {
height: inherit;
}
#site-logo {
float: none;
}
#site-title {
float: none;
margin-right: 0;
}
.hgroup-right {
float: none;
min-width: inherit;
padding-right: 0;
}
nav#site-navigation .current-menu-item:hover {
border: 0 none;
}
.main-navigation {
float: none;
}
.main-navigation li {
margin-right: 25px;
margin-left: 0;
}
}
Thank you!