/**** navbar ****/
html {
    /* variables */
    --header-padding: 10px;
    --header-width: var(--header-padding) min(calc(var(--header-padding) * 4), max(4vw, var(--header-padding)));
    --header-gap: 10px;
}

header {
    /* position */
    position: fixed;
    inset: 0;
    bottom: auto;
    z-index: 999;

    /* sizing */
    width: 100%;
    height: max-content;
}

header .container {
    /* sizing */
    padding: var(--header-width);
    height: 52px;

    /* flex */
    display: flex;
    justify-content: space-between;
    align-items: center;

    /* styling */
    color: var(--brand-text-color);

    /* transistion */
    transition: background-color var(--transition-duration) var(--transition-method);
}

header.scrolled .container {
    background-color: var(--brand-color-background);
}

#nav-btn,
#recipe-nav-btn {
    display: none;
}

header .nav {
    /* sizing */
    height: 100%;
    width: fit-content;

    /* flex */
    display: flex;
    flex-direction: row;
    justify-content: right;
    align-items: center;
    gap: calc(var(--header-gap) * 3);
}

header ul {
    /* flex */
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: right;
    align-items: center;
    gap: calc(var(--header-gap) * 3);

    /* sizing */
    margin: 0;
    padding: 0;

    /* list */
    list-style: none;
}

header a {
    /* position */
    position: relative;

    /* text */
    color: var(--brand-text-color);
    text-decoration: none;
    font-weight: 600;
}

header a:after {
    /* content */
    content: "";

    /* position */
    position: absolute;
    bottom: calc(-6.5px - var(--header-padding));

    /* sizing */
    display: block;
    height: calc(var(--header-padding) / 2);
    width: 100%;

    /* styling */
    background-color: var(--brand-text-color);
    border-top-left-radius: 100vmax;
    border-top-right-radius: 100vmax;

    /* transition */
    transform: scaleX(0);
    transition: transform var(--transition-duration) var(--transition-method);
    transform-origin: right;
}

header .menu {
    /* display */
    display: block;

    /* sizing */
    height: 100%;
    width: fit-content;
    padding: calc(var(--header-padding) / 2);

    /* color */
    color: inherit;
    fill: currentColor;
    transition: fill var(--transition-duration) var(--transition-method);
}

header a.menu:after {
    bottom: calc(var(--header-padding) * -1);
    left: calc((var(--header-padding) / 20) * -1);
}

header a:hover::after,
header a:focus::after,
header a:focus-visible::after {
    /* show */
    transform: scaleX(1);
    transform-origin: left;
}

header a:active::after {
    background-color: black;
}

header .menu svg

/*No Set Color*/
    {
    /* display */
    display: block;

    /* sizing */
    height: 100%;
    width: fit-content;
}

@media (max-width: 450px) {
    #nav-btn {
        display: block;
    }

    header ul {
        /* sizing */
        width: 100%;
        height: 100%;

        /* flex */
        flex-direction: column !important;
        justify-content: center !important;
        align-items: center !important;
    }

    header nav {
        /* position */
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: -1;

        /* sizing */
        padding: var(--padding) calc(var(--padding) * 4) !important;
        height: 100vh;
        width: 100vw;

        /* styling */
        background-color: var(--primary-color);

        /* hiding */
        pointer-events: none;
        opacity: 0;

        /* transition */
        transition: opacity 0.25s ease-in-out;
    }

    header nav.visible,
    header nav:focus-within {
        opacity: 1;
        pointer-events: auto;
    }

    header .nav {
        /* flex */
        gap: var(--padding) !important;
    }
}