Hi
The container of each section is defined with padding value:
.container, .t4-masthead .t4-masthead-detail, .container-fluid, .container-xxl, .container-xl, .container-lg, .container-md, .container-sm {
--t4-gutter-x: 2rem;
--t4-gutter-y: 0;
width: 100%;
padding-right: calc(var(--t4-gutter-x)*.5);
padding-left: calc(var(--t4-gutter-x)*.5);
margin-right: auto;
margin-left: auto;
}
However, you set the variable --t4-gutter-x to 0 so no padding-left / right now.
.container, .t4-masthead .t4-masthead-detail, .container-fluid, .container-xxl, .container-xl, .container-lg, .container-md, .container-sm {
--t4-gutter-x: 0rem;
}
You can change this value or define your own value for padding-left / padding-right.