@import url('https://fonts.googleapis.com/css2?family=Ubuntu&display=swap');
*{
    margin: 0;
    padding: 0;
    border: 0;
    outline: 0;
    box-sizing: border-box;
}
html{
    font-size: 62.5%;
}

.main-content{
    margin-left: 11.4%;
    width: 88%;
    display: flex;
    flex-direction: row;
    justify-content: center;
    border: 2px solid black;
}

html, body{
    height: 100vh;
    font-family: 'Ubuntu', sans-serif;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}
body{
    font-size: 1.6rem;
}

header{
    background-color: cadetblue;
}
header img {
    width: 64px;
    margin-left: 2px;
    padding: 13px 0;
  }
header .conteiner{
    display: flex;
    align-items: center;
    justify-content: space-between;

    width: 90%;
    max-width: 980px;

    margin: auto;
}
header nav ul {
    display: flex;
}
header nav ul li {
    list-style: none;
}
header nav ul li a {
    text-decoration: none;
    color: white;
    text-transform: uppercase;
    font-size: 1.4rem; 
    padding: 2.4rem;
    transition: all 250ms linear 0s;
}
header nav ul li a:hover {
    background: rgba(255,255,255, 0.15)
}

/*Media queries*/
@media (max-width:768px){
    html{
        font-size: 50%;
    }
}

@media (max-width:428px) {
    nav{
        display: none;
    }

    .one,.two, .three{
        background-color: azure;
        height: 5px;
        width: 100%;
        margin: 6px auto;
        transition-duration: .3s;
    }

    .menu-toggle{
        width: 40px;
        height: 30px;
        margin-right: 20px;
    }

    .menu-section.on{
        position: absolute;
        top:0;
        left:0;
        width: 100vw;
        height: 100vh;
        background-color: cadetblue;

        z-index: 10;

        display: flex;
        justify-content: center;
        align-items: center;
    }
    .menu-section.on nav{
        display: block;
    }
    .menu-section.on .menu-toggle{
     position: absolute;
     right: 30px;
     top:15px;
    }
    
    .menu-section.on .menu-toggle .one{
        transform: rotate(45deg) translate(7px, 7px);
    }
    .menu-section.on .menu-toggle .two{
        opacity: 0;
    }
    .menu-section.on .menu-toggle .three{
        transform: rotate(-45deg) translate(8px, -10px);
    }

    .menu-section.on nav ul{
        text-align: center;
        display: inline;
    }
    .menu-section.on nav ul a{
        transition-duration: 0.5s;
        font-size: 3rem;;
        line-height: 4rem;
        display: block;
    }
}