:root {
    --spacing: 1rem;
}

* {
    box-sizing: border-box;
}

html, body {
    height: 100%;
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    display: flex;
    flex-direction: column;
}

main {
    flex-grow: 1;
    display: flex;
    flex-wrap: wrap;
}

body>header, main, body>footer {
    width: 100%;
    max-width: 50rem;
    margin-inline: auto;
}

aside {
    flex-grow: 1;
}

[aria-label="Content"] {
    flex: 3 1 25rem;
}

header, footer, aside, section {
    padding: var(--spacing);
}

[aria-label="Primary"] ul, [aria-label="Footer"] ul {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

[aria-label="Primary"] li, [aria-label="Footer"] li {
    list-style-type: none;
}