:root {
    --main: #292929;
    --secondary: #6e6e6e;
    --correct: #d3ffb5;
    --incorrect: #faa89b;
}

body {
    font-family: 'IBM Plex Sans', sans-serif;
    padding: 10vh 10vw;
    background: #f2f2f2;
    color: var(--main);
}

b {
    font-weight: 800;
}

section {
    margin-bottom: 5vh;
    padding-top: 100px;
    margin-top: -100px;
}

hr {
    margin: 10vh 0;
    border: none;
    border-top: dotted 3px white;
}

h1 {
    font-size: 86px;
    line-height: 52px;
    font-weight: 800;
    margin-left: -5px;
    margin-bottom: 25px;
}

h4 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 20px;
}

h3 {
    font-size: 36px;
    font-weight: 600;
}

p {
    color: var(--secondary);
    margin-bottom: 0;
}

.title {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    height: 50vh;
    margin-top: 5vh;
    margin-bottom: 0;
}

.title > div {
    border-left: solid 10px var(--main);
    padding-left: 5vw;
}

.authors > a {
    margin-right: 10px;
    text-decoration: none;
    color: darksalmon;
    white-space: nowrap;
}

.authors > a:hover,
.accesspaper > p > a > i:hover {
    color: salmon;
}

.accesspaper {
    padding: 25px;
    /*background: white;*/
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.accesspaper > p > a > i {
    font-size: 48px;
    margin: 10px;
    color: darksalmon;
}

.data > a {
    padding: 10px;
    margin-right: 10px;
    background: white;
    line-height: 50px;
    color: darksalmon;
    text-decoration: none;
}

/*
.exampletoggle > div:hover {
    background: #ffdad6;
    color: white;
    cursor: pointer;
}
*/

.data > a:hover,
.exampletoggle > .active {
    background: salmon !important;
    color: white !important;
}

.exampletoggle > .active::after {
    content: '';
    position: absolute;
    left: calc(50% - 10px);
    top: 100%;
    width: 0;
    height: 0;
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-top: 10px solid salmon;
    clear: both;
}

.exampletoggle {
    margin: 20px 0;
    display: flex;
}

.exampletoggle > div {
    position: relative;
    font-size: 24px;
    padding: 10px 24px;
    background: white;
    color: darksalmon;
    margin-right: 10px;
}

.examples > div {
    padding: 25px;
    background: white;
    justify-content: space-between;
    display: none;
}

.videos {
    width: 40%;
}

.targetvid {
    display: block;
    width: calc(100% - 10px);
}

.referencevid {
    width: calc(50% - 10px);
    margin: 10px 5px 0 0;
}

.questions {
    width: 58%;
    padding-left: 2%;
    border-left: solid 5px var(--main);
}

.questions > tag {
    display: block;
    border-top: dotted 1px #2b2b2b;
    margin-top: 15px;
}

.questions > tag > span {
    display: inline-block;
    background: gray;
    padding: 3px 9px;
    margin-top: 15px;
    color: white;
    font-size: 12px;
}

p.ques {
    font-size: 18px;
    font-weight: 600;
    color: var(--main);
    margin: 10px 0;
}

p.ans,
.choice.true {
    padding: 3px 9px;
    background: var(--correct);
    display: inline-block;
    margin-bottom: 5px;
}

.choice.false {
    padding: 3px 9px;
    background: var(--incorrect);
    display: inline-block;
    margin-bottom: 5px;
}

.nav {
    position: fixed;
    left: 0;
    top: 0;
    right: 0;
    height: 100px;
    background: #f2f2f2;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 10vh;
    z-index: 1000;
}

.nav > p {
    color: var(--main);
    font-weight: 600;
    font-size: 24px;
}

.nav > p > a {
    font-size: 16px;
    text-decoration: none;
    color: gray;
    margin-left: 20px;
}

.nav > p > a:hover {
    color: var(--main);
    cursor: pointer;
}