:root{
    --page-header-bg: linear-gradient(163deg, #293A42 0%, #46556A 81%);
    --page-header-text:#fff;
    --folder-bg: #717992;
    --folder-bg-active: #3F4555;
    --folder-bg-hover: #676E85;
    --folder-text-color: #fff;
    --box-info-bg:#3F4555;
    --box-info-text-color:#fff;
    --link-box-bg:#EDF0F6;
    --link-box-bg-hover:#DDE2E9;
    --link-box-text-color:#333;
    --btn-bg:#9cbe26;
    --btn-text-color:#fff;
    --footer-bg:#2a2f41;
    --sylabus-bg:rgba(130,161,29,0.10);
}

html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td, article, aside, canvas, details, embed, figure, figcaption, footer, header, hgroup, menu, nav, output, ruby, section, summary, time, mark, audio, video {
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
    margin: 0;
    padding: 0;
}
*, *:before, *:after {
    -moz-box-sizing: border-box;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
}

:after, :before {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
html, body {
    height: 100%;
    min-height: 100%;
}
body {
    font: 16px/1 "Helvetica Neue",Helvetica,Arial,sans-serif;
    -webkit-font-smoothing: antialiased;
    color: #333;
}

header{
    background-image: var(--page-header-bg);
    margin-bottom: 20px;
}
header .header_container{
    background-image: url(../images/brain_ml.png);
    background-size: 622px;
    background-position:50% 50%;
    background-repeat: no-repeat;
    text-align: center;
}
@media (-webkit-min-device-pixel-ratio:2), (min-resolution:192dpi){
    header .header_container{
        background-image: url(../images/brain_ml@2x.png);
    }
}

header img{
    width: 124px;
    margin: 68px auto 18px;
}
h1{
    font-weight: 300;
    font-size: 2.8em;
    text-align: center;
    padding: 0 0 20px;
}
header h1{
    font-weight: 200;
    font-size: 4em;
    color: #FFFFFF;
    text-align: center;
    padding: 0 0 20px;
}
.container{
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px 20px 40px;
}
a, a:hover{
    color: #749201;
    text-decoration: none;
}
.box_info{
    padding: 24px 20px;
    border-radius: 3px;
    text-align: center;
    font-size: 1.2em;
    margin: 30px auto;
    background: var(--box-info-bg);
    color: var(--box-info-text-color);
    width: 80%;
}
.principal .box_info{
    margin: 50px auto;
}
.box_info a{
    color: #82A11D;
}
.box_info .btn{
    margin-top: 12px;
}
.principal a.btn.objectives{
    margin: 20px;
}
.btn, a.btn{
    background-color: #9cbe26;
    background-color: var(--btn-bg);
    color: var(--btn-text-color);
    padding: 10px 18px;
    border-radius: 5px;
    text-transform: uppercase;
    display: inline-block;
}
.btn:hover{
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}
a.btn.objectives{
    background-size: 28px;
    background-image: url(../images/icon_objectives.svg);
    background-repeat: no-repeat;
    background-position: 16px 50%;
    padding-left: 54px;
}
.align-center{
    text-align: center !important;
}

/* Style the button that is used to open and close the folder content */
.folder {
    background-color: var(--folder-bg);
    color: var(--folder-text-color);
    cursor: pointer;
    padding: 14px 20px;
    width: 100%;
    border: none;
    text-align: left;
    outline: none;
    font-size: 1.2em;
    margin-bottom: 6px;
    border-radius: 5px;
    text-transform: uppercase;
    font-weight: 200;
    line-height: 1.2em;
    position: relative;
}
.folder em {
    font-style: normal;
    font-size: 0.7em;
    position: absolute;
    top: 50%;
    right: 54px;
    background-color: rgba(255,255,255,0.6);
    padding: 0px 14px;
    border-radius: 14px;
    color: #333;
    height: 22px;
    margin-top: -11px;
}

.folder-content .folder {
    padding: 10px 16px;
    text-transform: capitalize;
}

/* Add a background color to the button if it is clicked on (add the .active class with JS), and when you move the mouse over it (hover) */
.folder.active{
    background-color: var(--folder-bg-active);
}
.folder:hover {
    background-color: var(--folder-bg-hover);
}
.folder:after {
    content: "+";
    font-size: 1.3em;
    color: white;
    float: right;
    padding-left: 1px;
    background-color: #fff;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    color: #333;
    text-align: center;
    line-height: 0.65em;
}

.active:after {
    content: "−"; /* Unicode character for "minus" sign (-) */
}

/* Style the folder content. Note: hidden by default */
.folder-content {
    padding: 0 20px 50px;
    overflow: hidden;
    display: none;
}
.folder-content.open {
    display: block;
}
/*.folder-content */
h2{
    border-bottom: 1px solid #ddd;
    margin: 40px 0 10px;
    padding-bottom: 8px;
    font-size: 1.6em;
}
.folder-content h2 {
    margin-top: 20px;
}
.folder-content ul{
    padding: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-column-gap: 12px;
    grid-row-gap: 12px;
}
.folder-content ul li{
    list-style: none;
}
.folder-content ul li {
    list-style: none;
    position: relative;
}
.folder-content a {
    background-color: var(--link-box-bg);
    position: relative;
    z-index: 1;
    border-radius: 6px;
    padding: 20px 40px 20px 60px;
    background-repeat: no-repeat;
    background-size: 36px;
    background-position: 10px 50%;
    display: block;
    color: var(--link-box-text-color);
}
.folder-content.block {
    padding: 0 0;
}
.folder-content.block a {
    display: block;
}
.folder-content a:hover{
    background-color: var(--link-box-bg-hover);
}
.folder-content a.file{
    background-image: url(../images/icon_resource_data.svg);
}
.folder-content a.video{
    background-image: url(../images/icon_resource_video.svg);
}
.folder-content a.slides{
    background-image: url(../images/icon_resource_slides.svg);
}
.folder-content.block {
    display: block;
}

.clipboard {
    background-image: url(../images/clippy.svg);
    background-size: 14px;
    background-position: 50% 50%;
    background-repeat: no-repeat;
    width: 30px;
    height: 30px;
    cursor: pointer;
    border: none;
    position: absolute;
    top: 50%;
    z-index: 2;
    margin-top: -15px;
    background-color: transparent;
    right: 10px;
    margin-right: -4px;
    opacity: 0.7;
}
.clipboard:hover {
    opacity: 1;
    border-radius: 15px;
    background-color: rgba(255,255,255,0.5);
}

.regular {
    margin: 15px 0 15px;
}
.regular p {
    margin: 10px;
    line-height: 1.4em;
    text-align: justify;
}
.regular p strong {
    font-weight: bold;
}
ul.sylabus {
    padding: 10px;
    color: #333333;
    position: relative;
    list-style-type: none;
    display: block;
}

ul.sylabus li {
    padding: 6px 10px 6px 40px;
    background: var(--sylabus-bg);
    margin-bottom: 8px;
    background-size: 20px;
    background-image: url(../images/icon_check_green.svg);
    background-position: 10px 8px;
    background-repeat: no-repeat;
}


footer{
    background:var(--footer-bg);
    padding: 30px;
    text-align: center;
}
footer img{
    width: 96px;
}
@media screen and (max-width: 768px){
    body{
        font-size: 14px;
    }
    .container{
        padding: 20px 10px 40px;
    }
    .folder-content{
        padding: 0 0 40px
    }
    .folder-content h2{
        margin-top: 30px;
    }
    .folder-content ul{
        grid-template-columns: 1fr;
    }
}