/*general html formattings*/
html {
    scroll-behavior: smooth;
    height: 100%;
}

/*body*/
body{
    display: grid;
    grid-template-rows: 100% 40em;
    grid-template-columns: 1fr;
    grid-template-areas:
            'header'
            'main';
    height: 100%;
}

@media only screen and (max-width: 750px) {
    /*portrait formatting*/
    body {
        grid-template-columns: 1fr;
        grid-template-rows: 90% 70em;
    }
}

/*header*/
header{
    grid-area: header;
    background-image: url("../ressources/img/main_header_background.jpg");
    background-repeat: no-repeat;
    background-size: cover;
    background-position: 0 90%;
    color: white;
    display: grid;
    grid-template-rows: 50% 50%;
    grid-template-columns: 1fr;
}

#menu{
    grid-column: 1;
    grid-row: 1;
    margin-left: auto;
    margin-top: 1em;
    margin-right: 1em;
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
}

#site-head{
    margin-top: auto;
    grid-column: 1;
    grid-row: 2;
    margin-left: 2em;
    margin-bottom: 2em;

}

.header-shadow{
    grid-column: 1 / span 2;
    grid-row: 1 / span 2;
    background-image: linear-gradient(0deg,transparent,rgba(25,25,25,0.65));
}


@media (orientation: portrait) {
    /*portrait formatting*/
    #menu{
        margin-right: auto;
        margin-left: 1em;
        flex-flow: column;
    }
}

header a{
    color: white;
    text-decoration: none;
    margin-left: 1em;
    position: relative;
    margin-bottom: 1em;
}

header a:hover{
    color: #DFDFDF;
}

header a::before{
    content: '';
    position: absolute;
    width:100%;
    transform: scaleX(0);
    bottom: 0;
    left: 0;
    height: 1px;
    opacity: 30%;
    background-color: #DFDFDF;
    transform-origin: bottom right;
    transition: transform 0.25s ease-out;
}

header a:hover::before{
    transform: scaleX(1);
    transform-origin: bottom left;
}

h1{
    font-size: 3em;
}

/*main*/
main{
    grid-area: main;
    width: 90%;
    height: 90%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 5fr;
    grid-column-gap: 2em;
    grid-template-areas:
                    'introduction introduction'
                    'aboutWork contact';
    text-align: center;
    margin: auto;
    padding-top: 3em;
    color: #707070;
    padding-bottom: 2em;
}


#introduction{
    grid-area: introduction;
}

#about-work{
    grid-area: aboutWork;
}

#contact{
    grid-area: contact;
}

hr{
    border: 1px solid #DFDFDF;
    margin-top: 1.5em;
    margin-bottom: 2em;
    opacity: 25%;
}

h2{
    margin-bottom: 1.5em;
}

@media only screen and (max-width: 750px) {
    /*portrait formatting*/
    main {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr 2fr 2fr;
        grid-template-areas:
                'introduction'
                'aboutWork'
                'contact';
    }

    #contact{
        margin-top: 2em;
    }

}