input {
    display: none;
}

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

header {
    padding: 30px 12%;
    background-color: #333;
    color: white;
}

section {
    padding: 10px 12%;
    text-align: justify;
}

section.fial {
    background-color: rgb(133, 87, 29);
    color: white;
}

section.ruz {
    background-color: #555;
    color: white;
}

section a {
    text-decoration: none;
    color: rgb(252, 166, 60);
    background-color: #333;
    padding: 10px;
    border-radius: 10px;
    transition: 0.6s;
}

section a:hover {
    color: #333;
    background-color: rgb(252, 166, 60);
    padding: 10px;
    border-radius: 15px;
    transition: 0.6s;
}

label {
    position: absolute;
    right: 8%;
    top: 2%;
}

h1 {
    margin: 0;
}

.menu {
    background-color: #333;
}

.hamburger {
    cursor: pointer;
    font-size: 30px;
    color: white;
    padding: 15px;
    display: none;
}

.nav {
    display: flex;
}

.nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav>ul>li {
    position: relative;
}

.nav a {
    display: block;
    padding: 15px 20px;
    text-decoration: none;
    color: white;
}

.nav a:hover {
    background-color: #555;
}

.submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #636363;
    z-index: 1000;
}

.nav>ul>li:hover>.submenu {
    display: block;
}

.submenu .submenu {
    display: none;
    position: absolute;
    top: 0;
    left: 100%;
    background-color: #989898;
}

.submenu li:hover>.submenu {
    display: block;
}

@media (max-width: 768px) {
    .hamburger {
        display: inline-block;
    }

    .nav {
        display: none;
        flex-direction: column;
    }

    #menu-toggle:checked+.hamburger+.nav {
        display: flex;
    }

    ul:hover~main{
        filter: blur(5px);
    }

    .nav>ul>li>.submenu {
        display: none;
    }

    .nav>ul>li>a {
        padding-right: 30px;
    }

    .nav>ul>li>a::after {
        content: "\25B6";
        font-size: 20px;
        color: white;
        float: right;
        rotate: calc(-270deg);
    }

    .nav>ul>li>a:hover::after {
        color: #555;
    }

    .nav>ul>li>.submenu {
        position: relative;
        top: 0;
        left: 0;
        background-color: #333;
        z-index: 1000;
    }

    .nav>ul>li>.submenu li {
        padding-left: 20px;
    }

    .submenu li:hover>.submenu {
        display: none;
    }

    header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
    }

    main {
        margin-top: 80px;
    }
}

@media(min-width:768px) {
    .hlb {
        display: flex;
        flex-direction: row;
    }

    header {
        display: flex;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        padding: 10px 12%;
        background-color: #333;
        color: white;
    }

    section{
        display: flex;
        flex-direction: row;
    }

    article{
        display: flex;
        flex-direction: column;
        padding: 20px;
        margin: 10px;
        align-items: center;
        flex: 1;
    }
}