$font: 'Montserrat', sans-serif;

$illiniblue: #13294B;
$blue1: #0455A4;
$blue2: #1F4096;
    
$illiniorange: #FF5F0F;
$neutral1: #E8E9EA;
$neutral2: #A5A8AA;
$neutral3: #5E6669;


$font-regular-color: black;
$font-light-color: #1A1A1A;
$font-lighter-color: #525252;


/** Element Setup **/

html, body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    background-color: darken($neutral1, 10%);
}

h1, h2, h3, h4, h5, h6, a, li, span, p {
    font-family: 'Montserrat', sans-serif;
    z-index: 1;
}

h1 {
    font-weight: 800;
}

h2 {
    font-weight: 600;
}

h3 {
    font-weight: 600;
    text-decoration: underline;
}

h4 {
    font-weight: 400;
    font-style: italic;
    text-decoration: underline;
}

h5, h6 {
    font-variant: small-caps;
}

h6 {
    font-color: $font-lighter-color;
}

.separator {
    width: 100%;
    height: 0.5em;
    z-index: 5;
}

.orange {
    background-color: $illiniorange;
}

.blue {
    background-color: $illiniblue;
}

a {
    font-weight: 400;
    font-color: $blue1;
    font-variant: small-caps;
}

a, a:hover, a:visited, a:active {
    color: inherit;
    text-decoration: none;
}

/* Navigation */

nav  {
    position: sticky;
    top: 0;

    margin: 0;
    padding: 0;

    width: 100%;
    height: 4em;

    z-index: 100;
    background-color: $neutral1;
    box-shadow: 0 0.25rem 0.25rem rgba(0,0,0,0.5); 

    ul {
        max-width:  70%;
        margin: 0 auto 0 auto;
        padding: 0;
        height: 3.5em;

        text-align: right;
        align-items: center;

        #logo {
            font-family: $font;
            font-weight: 400;

            font-size: 1.5em;
            padding: 0.55em;

            float: left;
        }

        li {
            width: 10em;
            height: 100%;
            display: inline-block;
            font-size: 1em;

            background-color: $neutral1;

            text-align: center;
            list-style-type: none;
            cursor: pointer;
            transition: background-color ease-in-out 0.1s;

            a {
                display: inline-block;
                padding: 1.1em 0 1.1em 0;
                width: 100%;

                
                font-weight: 400;
                font-variant: normal;
            }
        }

        li:hover {
            background-color: darken($neutral1, 10%);
        }
    }
}

.current {
  background-color: $illiniorange;
  color: $neutral1;
}

.current:hover {
    background-color: darken($illiniorange, 5%);
}

/* Slideshow */

#slideshow {
    position: absolute;
    top: 4em;

    width: 100%;
    height: 30em;

    img {
        position: absolute;
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    span {
        position: absolute;
        bottom: 1em;
        right: 2%;

        background-color: rgba(0,0,0,0.8);
        color: $neutral1;
        font-weight: 200;
        z-order: 10;

        padding: 0.5em;
    }

}


/* Top Card */

@keyframes slideCard {
    from { top: 24em; opacity: 0}
    to { top: 20em; opacity: 1}
}

.topCard {
    position: absolute;
    top: 20em;
    left: 0;
    right: 0;

    width: 20em;
    height: 18em;
    margin: 0 auto 0 auto;

    text-align: center;
    z-index: 10;
    animation: slideCard 1s;
    
    filter: drop-shadow(0.25em 0.3em 0.4em rgba(0,0,0,0.8));

    div {
        height: 100%;
        padding: 2em;
        clip-path: polygon(0 0, 100% 0, 100% 70%, 50% 100%, 0 70%); 
        background-color: rgba($illiniblue, 0.8);
        h1 {
            margin: 0;
            font-weight: 100;
            font-size: 3.8em;
            color: $neutral1;
        }

        p {
            margin-bottom: 5em;
            font-weight: 400;
            font-size: 1em;
            color: darken($neutral1, 10%);
        }
    }
}

/*  Content */

#content {
    max-width: 60%;
    margin: 0 auto 0 auto;
    position: absolute;

    left: 0;
    right: 0;
    bot: 0;

    background-color: $neutral1;
    padding: 2em 4em 4em 4em;

    div {
        position: relative;
        z-index: 1;
    }
}

.banner {
    top: 34em;
    padding-top: 6em !important;
}

.post {
    top: 4em;
}

#bessel {
    position: absolute;
    left: 0;
    top: 1em;
    z-index: 0;
    opacity: 0.3
}

.markdown-img {
    width: 100%;
}