body{
    display: flex;
    flex-direction: column;
    justify-content: start;
    min-height: 100vh;
}
header{
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--page-max-width);
    margin: 0 auto;
    padding: var(--spacing-8) var(--spacing-16);
    width: 100%;
    box-sizing: border-box;
}
footer{
    margin-top: auto;
}