/* START:: header and footer styles - desktop */
:root {
    --wysokosc-naglowka-nawigacyjnego: 96px;
    --wysokosc-naglowka-nawigacyjnego-mobilka: 84px;
    --kolor-asfalt: #1f2524;
    --kolor-grafit: #303738;
    --kolor-beton: #f7f3ea;
    --kolor-piasek: #e7dac2;
    --kolor-cegla: #b25538;
    --kolor-zielen: #3f7f5f;
    --kolor-ostrzezenie: #f2b705;
    --kolor-stal: #50636b;
    --kolor-biel: #ffffff;
    --kolor-tekst: #33403f;
    --cien-mocny: 0 22px 70px rgba(31, 37, 36, 0.22);
    --cien-lekki: 0 12px 34px rgba(31, 37, 36, 0.12);
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--kolor-beton);
    color: var(--kolor-tekst);
}

body > header > nav {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    box-sizing: border-box;
    transition: background 0.35s, box-shadow 0.35s, height 0.35s;
}

body > header > nav > a {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--kolor-biel);
    text-decoration: none;
    font-family: "Trebuchet MS", "Segoe UI", Arial, sans-serif;
    font-size: 22px;
    font-weight: 700;
    line-height: 1;
    letter-spacing: 0;
}

body > header > nav > a > img {
    width: 48px;
    height: 48px;
    display: block;
}

body > header > nav.scrolled,
body > header > nav.opened {
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 6px 26px rgba(31, 37, 36, 0.12);
    backdrop-filter: blur(14px);
}

body > header > nav.scrolled > a,
body > header > nav.opened > a {
    color: var(--kolor-asfalt);
}

body > header > nav > button {
    margin-left: auto;
}

body > header > nav > button:active,
body > header > nav > button:focus {
    outline: 0;
}

body > header > nav > div > ul,
body > header > nav > div > ul ul {
    list-style-type: none;
}

body > header > nav > div > ul li {
    position: relative;
}

body > header > nav > div > ul a {
    color: inherit;
    text-decoration: none;
}

body > header > nav > div > ul > li > a,
body > header > nav > div > ul > li.menu-item-has-children > span {
    font-family: "Segoe UI", Arial, sans-serif;
    font-size: 14px;
    font-weight: 700;
    line-height: 1;
    text-transform: uppercase;
    letter-spacing: 0;
}

body > header > nav > div > ul li.menu-item-has-children > span {
    display: flex;
    align-items: center;
}

body > header > nav > div > ul li.menu-item-has-children > span > span {
    margin-left: auto;
}

body > footer {
    display: flex;
    justify-content: center;
    align-items: center;
    align-self: end;
    width: 100%;
    min-height: 62px;
    margin-top: auto;
    background: var(--kolor-asfalt);
    color: var(--kolor-biel);
    font-family: "Segoe UI", Arial, sans-serif;
    font-size: 16px;
}

body > footer > span > a {
    color: var(--kolor-ostrzezenie);
    text-decoration: none;
    font-weight: 700;
}

body > footer > a {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 10;
    width: 48px;
    height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    background: var(--kolor-ostrzezenie);
    color: var(--kolor-asfalt);
    text-decoration: none;
    font-size: 22px;
    font-weight: 900;
    box-shadow: var(--cien-lekki);
    transition: opacity 0.35s, visibility 0.35s, transform 0.35s, background 0.35s;
}

body > footer > a:hover {
    background: var(--kolor-cegla);
    color: var(--kolor-biel);
    transform: translateY(-3px);
}

.hide {
    opacity: 0;
    visibility: hidden;
}

.show {
    opacity: 1;
    visibility: visible;
}

body > header > nav {
        height: var(--wysokosc-naglowka-nawigacyjnego);
        padding: 0px max(60px, calc(50% - 620px));
        background: rgba(31, 37, 36, 0.18);
    }

    body > header > nav > button {
        display: none;
    }

    body > header > nav > div {
        margin-left: auto;
        visibility: visible;
        opacity: 1;
    }

    body > header > nav > div > ul {
        display: flex;
        align-items: center;
        gap: 8px;
        margin: 0;
        padding: 0;
    }

    body > header > nav > div > ul > li > a,
    body > header > nav > div > ul > li.menu-item-has-children > span {
        display: flex;
        align-items: center;
        min-height: 38px;
        box-sizing: border-box;
        padding: 11px 13px;
        color: var(--kolor-biel);
        transition: background 0.25s, color 0.25s;
    }

    body > header > nav.scrolled > div > ul > li > a,
    body > header > nav.scrolled > div > ul > li.menu-item-has-children > span {
        color: var(--kolor-asfalt);
    }

    body > header > nav > div > ul > li:hover > a,
    body > header > nav > div > ul > li.menu-item-has-children:hover > span,
    body > header > nav.scrolled > div > ul > li:hover > a,
    body > header > nav.scrolled > div > ul > li.menu-item-has-children:hover > span {
        background: var(--kolor-ostrzezenie);
        color: var(--kolor-asfalt);
    }

    body > header > nav > div > ul > li.menu-item-has-children > span::after {
        content: "";
        width: 0.45em;
        height: 0.45em;
        margin-left: 0.65em;
        transform: translateY(-20%) rotate(135deg);
        border-right: 0.13em solid;
        border-top: 0.13em solid;
    }

    body > header > nav > div > ul li.menu-item-has-children > span > span {
        display: none;
    }

    body > header > nav > div > ul > li > ul {
        position: absolute;
        top: 100%;
        left: 0;
        width: max-content;
        min-width: 210px;
        max-width: 260px;
        margin: 0;
        padding: 8px;
        background: var(--kolor-biel);
        color: var(--kolor-asfalt);
        box-shadow: var(--cien-lekki);
        opacity: 0;
        visibility: hidden;
        transform: translateY(10px);
        transition: opacity 0.25s, visibility 0.25s, transform 0.25s;
    }

    body > header > nav > div > ul > li:hover > ul {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    body > header > nav > div > ul > li > ul > li > a {
        display: block;
        padding: 10px 12px;
        color: var(--kolor-asfalt);
        font-family: "Segoe UI", Arial, sans-serif;
        font-size: 14px;
        line-height: 1.35;
    }

    body > header > nav > div > ul > li > ul > li > a:hover {
        background: rgba(242, 183, 5, 0.18);
        color: var(--kolor-cegla);
    }
/* END:: header and footer styles - desktop */