/*============================ MAIN NAVIGATION ============================*/

.main-nav {
    width: 100%;
    padding: 0 25px;

    border-top: 1px solid var(--color-medium-grey);
    border-bottom: 1px solid var(--color-medium-grey);
}


/*============================ MOBILE TOGGLE ============================*/

.main-nav__toggle {
    display: flex;
    flex-flow: column nowrap;
    justify-content: center;
    align-items: center;
    gap: 5px;

    width: 50px;
    height: 50px;
    margin: 25px auto;

    background: none;
    border: 1px solid var(--color-medium-grey);
    border-radius: 5px;

    cursor: pointer;
}

.main-nav__toggle span {
    display: block;

    width: 35px;
    height: 4px;

    background-color: var(--color-dark-grey);
}


/*============================ MOBILE MENU ============================*/

.main-nav__menu {
    display: none;
    flex-flow: column nowrap;

    margin: 25px 0 0;
    padding: 0;

    list-style: none;
}

.main-nav__menu.is-open {
    display: flex;

    margin-bottom: 25px;

    border: 1px solid var(--color-medium-grey);
    border-radius: 5px;
}

.main-nav__menu li {
    padding: 0;

    border-bottom: 1px solid var(--color-medium-grey);
}

.main-nav__menu li:last-child {
    border-bottom: none;
}


/*============================ NAVIGATION LINKS ============================*/

.main-nav__menu a {
    display: flex;
    justify-content: center;
    align-items: center;

    width: 100%;
    padding: 15px 20px;

    font-family: var(--font-heading);
    font-size: 22px;
    font-weight: 500;
    letter-spacing: 0.05em;

    color: var(--color-medium-grey);
    text-decoration: none;

    -webkit-tap-highlight-color: var(--color-teal);

    transition: transform 0.15s ease;
}


/*============================ MOBILE ACTIVE STATE ============================*/

.main-nav__menu a:active {
    background: linear-gradient(
        90deg,
        var(--color-light-green),
        var(--color-teal),
        var(--color-blue)
    );

    background-clip: text;
    -webkit-background-clip: text;

    color: transparent;
    -webkit-text-fill-color: transparent;

    transform: scale(0.98);
}


/*============================ DESKTOP ============================*/

@media (min-width: 768px) {

    .main-nav {
        padding: 0;

        border-top: none;
        border-bottom: none;
    }


    /*============================ HIDE HAMBURGER ============================*/

    .main-nav__toggle {
        display: none;
    }


    /*============================ DESKTOP MENU ============================*/

    .main-nav__menu {
        display: flex;
        flex-flow: row nowrap;
        justify-content: center;
        align-items: center;

        margin: 0;
        padding: 0;

        border-top: 1px solid var(--color-charcoal);
        border-bottom: 1px solid var(--color-charcoal);
    }


    /*============================ DESKTOP MENU ITEMS ============================*/

    .main-nav__menu li {
        flex: 1;

        padding: 0;

        border-bottom: none;
        border-right: 1px solid var(--color-charcoal);

        text-align: center;
    }

    .main-nav__menu li:last-child {
        border-right: none;
    }


    /*============================ DESKTOP LINKS ============================*/

    .main-nav__menu a {
        position: relative;

        display: flex;
        justify-content: center;
        align-items: center;

        width: 100%;
        padding: 15px 0;

        color: var(--color-medium-grey);

        overflow: hidden;
    }


    /*============================ DESKTOP GRADIENT LAYER ============================*/

    .main-nav__menu a::after {
        content: attr(data-text);

        position: absolute;
        inset: 0;

        display: flex;
        justify-content: center;
        align-items: center;

        background: linear-gradient(
            90deg,
            var(--color-light-green),
            var(--color-teal),
            var(--color-blue)
        );

        background-clip: text;
        -webkit-background-clip: text;

        color: transparent;
        -webkit-text-fill-color: transparent;

        opacity: 0;

        pointer-events: none;

        transition: opacity 0.3s ease;
    }


    /*============================ DESKTOP HOVER ============================*/

    .main-nav__menu a:hover::after {
        opacity: 1;
    }


    /*============================ KEYBOARD FOCUS ============================*/

    .main-nav__menu a:focus-visible {
        outline: 2px solid var(--color-teal);
        outline-offset: -3px;
    }

}