*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
img{
    width: 100%;
}
            /* style for header  */
header{
    width: 100%;
    background-color: whitesmoke;
    color: darkblue;
    padding: 2rem;
    text-align: center;
    position: relative;
}
header h2{
    font-size: 2rem;
}
.nav{
    padding: 2rem 0 0 0;
    visibility: hidden;
    height: 0;
}
.nav-visible{
    visibility: visible;
    height: auto;
}
.nav-toggle{
    position: absolute;
    left: 2rem;
    top: 1.3rem;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 15px;
    border-radius: 50%;
}
.nav-toggle:hover{
    background-color: rgba(0,0,0,0.2);
}
.nav form{
    display: none;
}
.nav ul{
    list-style: none;
}
.nav li{
    margin: 0;
    padding: 0;
}
.nav  a{
    text-decoration: none;
    display: inline-block;
    margin-top: 1rem;
    font-size: 1.3rem;
    color: darkblue;
    font-weight: 900;
}

                /* main style  */
main{
    padding: 0 2rem;
    margin: 2rem 0;
}
main h1{
    font-size: 3rem;
    margin: 1rem 0;
}
main p{
    font-size: 1.3rem;
    margin: 1rem 0;
}
main a{
    display: inline-block;
    text-decoration: none;
    background-color: darkblue;
    color: white;
    padding: 10px 20px;
    margin: 2rem .3rem;
    border-radius: 3px;
    box-shadow: 3px 3px 5px rgba(0,0,0,0.2);
    cursor: pointer;
}

                /* media query for desktop */
@media screen and (min-width:1000px) {
    .row{
        display: flex;
    }
    header h2{
        margin-right: 3rem;
        width: 30%;
    }
    .nav-toggle{
        display: none;
    }
    .nav{
        visibility: visible;
        display: flex;
        margin: 0;
        padding: 0;
        width: 80%;
    }
    .nav ul{
        width: 100%;
        display: flex;
        justify-content: flex-end;
        
    }
    .nav form{
        display: inline-block;
        
    }
    .nav input[type="text"]{
        padding: 15px;
        border: none;
        outline: none;
        font-size: 1.4rem;
        color: darkblue;
    }
    .nav a{   
       margin: 1rem 1rem 0 1rem;  
    }
            /* main  */
    .sec-1{
        width: 50%;
    }
    .sec-2{
        width: 50%;
        margin-top: 10rem;
    }
}