/* START:: header and footer styles - mobile/tablet */
: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-mobilka);
        padding: 0px 20px;
        background: rgba(31, 37, 36, 0.1);
    }

    body > header > nav > a {
        font-size: 20px;
    }

    body > header > nav > a > img {
        width: 44px;
        height: 44px;
    }

    body > header > nav > button {
        width: 44px;
        height: 44px;
        padding: 0;
        background: none;
        border: none;
        cursor: pointer;
        --hamburger-color: var(--kolor-biel);
    }

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

    body > header > nav > button > span {
        display: block;
        width: 30px;
        height: 2px;
        margin: 6px auto;
        background: var(--hamburger-color);
        transition: transform 0.25s, opacity 0.25s;
    }

    body > header > nav > button.expanded > span:nth-of-type(1) {
        transform: translateY(8px) rotate(45deg);
    }

    body > header > nav > button.expanded > span:nth-of-type(2) {
        opacity: 0;
    }

    body > header > nav > button.expanded > span:nth-of-type(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    body > header > nav > div {
        position: absolute;
        top: var(--wysokosc-naglowka-nawigacyjnego-mobilka);
        left: 0;
        width: 100%;
        height: calc(100vh - var(--wysokosc-naglowka-nawigacyjnego-mobilka));
        background: rgba(31, 37, 36, 0.62);
        overflow-x: hidden;
        visibility: hidden;
        opacity: 0;
        transition: visibility 0.35s, opacity 0.35s;
    }

    body > header > nav > div.open {
        visibility: visible;
        opacity: 1;
    }

    body > header > nav > div > ul {
        width: min(78%, 360px);
        height: 100%;
        margin: 0 0 0 -100%;
        padding: 14px 0;
        background: var(--kolor-biel);
        overflow: auto;
        transition: margin-left 0.35s;
    }

    body > header > nav > div.open > ul {
        margin-left: 0;
    }

    body > header > nav > div > ul > li > a,
    body > header > nav > div > ul > li.menu-item-has-children > span {
        display: flex;
        align-items: center;
        padding: 14px 18px;
        color: var(--kolor-asfalt);
    }

    body > header > nav > div > ul > li > ul {
        max-height: 0;
        margin: 0;
        padding: 0 0 0 16px;
        overflow: hidden;
        list-style-type: none;
        transition: max-height 0.25s ease;
    }

    body > header > nav > div > ul > li.smexpand > ul {
        max-height: 380px;
    }

    body > header > nav > div > ul > li > ul > li > a {
        display: block;
        padding: 11px 18px;
        color: var(--kolor-grafit);
        font-family: "Segoe UI", Arial, sans-serif;
        font-size: 14px;
    }

    body > header > nav > div > ul li.menu-item-has-children > span > span > button {
        position: relative;
        display: inline-block;
        width: 32px;
        height: 32px;
        background: transparent;
        border: 0;
        cursor: pointer;
    }

    body > header > nav > div > ul li.menu-item-has-children > span > span > button > span {
        position: absolute;
        background: var(--kolor-asfalt);
        transition: transform 0.25s, left 0.25s, right 0.25s;
    }

    body > header > nav > div > ul li.menu-item-has-children > span > span > button > span:first-child {
        top: 25%;
        bottom: 25%;
        left: 47.5%;
        width: 5%;
    }

    body > header > nav > div > ul li.menu-item-has-children > span > span > button > span:last-child {
        top: 47.5%;
        left: 25%;
        right: 25%;
        height: 5%;
    }

    body > header > nav > div > ul li.menu-item-has-children > span > span > button.smopen span {
        transform: rotate(90deg);
    }

    body > header > nav > div > ul li.menu-item-has-children > span > span > button.smopen span:last-child {
        left: 50%;
        right: 50%;
    }
/* END:: header and footer styles - mobile/tablet */