body {
    --bs-primary-rgb: 0, 123, 118;
    --bs-primary: rgb(var(--bs-primary-rgb));
    --bs-link-hover-color: var(--bs-primary);
    --gh-frame-bg: rgba(var(--bs-primary-rgb), .85);

    display: grid;
    grid-template-columns: 1fr 4fr;
    grid-column-gap: 2rem;
    grid-template-rows: 4rem minmax(100vh, auto);
}

header {
    background-color: var(--gh-frame-bg);
    display: flex;
    grid-column-start: span 2;
    justify-content: center;
    align-items: center;
    padding: 1rem;
}

header h2 {
    margin: 0;
}

main {
    padding-top: 2rem;
}