.nav-header {
    position: absolute;
    display: flex;
    justify-content: end;
    align-items: end;
    top: 0;
    left: 0;
    width: 100%;
    height: 5rem;
    padding-right: 5rem;
    transition: width .15s ease-in-out;
}

.nav-header__ul {
    display: flex;
    gap: 25px;
    list-style-type: none;
}

.nav-header__ul li {
    text-decoration: none;
    font-size: 1.2rem;
}

.nav-header__ul a {
    text-decoration: none;
    color: var(--white-bold);
    transition: color .13s ease-in;
}

.nav-header__ul a:hover {
    color: var(--grey);
}

.btn-close, .btn-open {
    display: none;
}

@media (max-width: 800px) {
    .nav-header {
        position: fixed;
        flex-direction: column;
        justify-content: start;
        align-items: start;
        height: 100%;
        padding-right: 0;
    }

    .nav-header__ul {
        flex-direction: column;
        padding-top: 5rem;
        gap: 0;
        width: 100%;
        height: 100%;
        background-color: var(--dark-blue);
        transition: transform 0.3s ease-in-out;
    }

    .nav-header__ul li {
        padding: 1rem 3rem;
        width: 100%;
        text-align: center;
    }

    .nav-header__ul li:active {
        background-color: var(--white-bold);
        color: var(--dark-blue);
    }

    .nav-header.close .nav-header__ul {
        transform: translateX(-100%);
    }

    .nav-header.open .nav-header__ul {
        transform: translateX(0);
    }

    .btn-open, .btn-close {
        display: block;
        position: fixed;
        bottom: 2rem;
        right: 2rem;
        background-color: var(--light-blue);
        border: none;
        font-size: 2rem;
        color: var(--white-bold);
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: .5rem 1rem;
        border-radius: 50%;
    }

    .nav-header.nav-header.close {
        width: 0;
        overflow: hidden;
    }

    .nav-header.open .btn-open {
        display: none;
    }

    .nav-header.close .btn-close {
        display: none;
    }

    .nav-header.open .btn-close {
        display: block;
    }
}