header {
    position: sticky;
    top: 0;
    z-index: 10;

    padding: 1rem 1.5rem;

    backdrop-filter: blur(14px);

    color: var(--color-text-main);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;

    max-width: 64rem;
    margin: 0 auto;
}

nav > #nav-left > a {
    display: flex;
    justify-content: center;
    align-items: center;
}

nav > #nav-left > a > img {
    width: 104px;
}

nav > #nav-center {
    display: none;
}

nav > #nav-center > ul {
    list-style-type: none;

    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
}

nav > #nav-center > ul > li > a {
    font-size: 15px;
}

nav > #nav-right {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
}

nav > #nav-right > button#contact-sales,
nav > #nav-right > button#start-for-free {
    display: none;
    font-size: 15px;
}

nav > #nav-right > button#contact-sales {
    font-weight: 500;

    padding: 4.5px 0.75rem;
    background-color: #ffffff0d;

    border: 1px solid transparent;

    border-radius: 9999px;
}

nav > #nav-right > button#start-for-free {
    background-color: var(--color-background-invert);
    color: var(--color-text-invert);

    border: 1px solid var(--color-text-main);

    font-weight: 500;

    padding: 4.5px 1.5rem;
    border-radius: 9999px;
}

nav > #nav-right > button#menu {
    display: flex;
    justify-content: center;
    align-items: center;
}

@media (min-width: 1024px) {
    nav > #nav-center {
        display: block;
    }

    nav > #nav-right > button#contact-sales,
    nav > #nav-right > button#start-for-free {
        display: inline-block;
    }

    nav > #nav-right > button#menu {
        display: none;
    }
}