header {
    background-color: transparent;
    backdrop-filter: blur(24px);
    position: sticky;
    top: 0;
    z-index: 1000;

    .header-grid {
        display: grid;
        grid-template-columns: auto auto;
        align-items: center;
        justify-content: space-between;
    }

    nav.mainmenu ul {
        display: flex;
        justify-content: center;
        padding: 1rem 0;
        list-style: none;
        margin: 0;
        gap: 1rem;
    }

    a {
        color: var(--text-color);
        text-decoration: none;
        font-weight: bold;

        &:hover, &:focus {
            color: var(--background-color);
        }
    }
}

main {}

footer {
    background-color: var(--text-color);
    color: var(--background-color);
    padding: 1rem 0;

    .footer-top {
        display: flex;
        gap: 1rem;
        flex-wrap: wrap;

        .footer-section {
            flex: 1;
        }

        @media screen and(min-width: 768px) {
            flex-wrap: nowrap;
        }
    }

    .footer-bottom {
        text-align: center;
        border-top: 1px solid var(--background-color);
    }

    a {
        color: var(--background-color);
        text-decoration: none;

        &:hover, &:focus {
            text-decoration: underline;
        }
    }
}