body>.deck-container {
    height: 100vh;
    /*overflow: hidden;*/
    scrollbar-width: none;  /* Firefox */
}

:root {
    --theorem-color: #fefefe;
    --definition-color: #fefefe;
    --observation-color: #fefefe;
    --goal-color: #fefefe;
    --example-color: #fefefe;
    --conjecture-color: #fefefe;
    --proof-color: #fefefe;
    
    --citation-color: darkgray;
        
    --timeline-color: lightgray;
    --timeline-std-color: #FF9F55;
    --timeline-color-var1: #9F55FF;
    --timeline-color-var2: #559FFF;
}

.center {
    width: 100%;
    text-align: center;
    margin-bottom: 20px;
}

.shelf {
    display: flex;
    margin-bottom: 20px;
}

ul {
    margin-bottom: 0px;
    list-style-image: url('triangle.png');
}


.observation, .theorem, .definition, .example, .conjecture, .proof {
    height: 100%;
    width: 100%;
    margin-bottom: 10px;
    margin-right: 10px;
    padding-left: 20px;
    padding-right: 20px;
    padding-top: 10px;
    padding-bottom: 10px;
    position: relative;
    border-radius: 30px;
}

.shelf .observation, .shelf .theorem, .shelf .definition, .shelf .example, .shelf .conjecture, .shelf .proof {
    width: 60%;
}

.definition::before {
    display: block;
    content: "Definition.";
    font-weight: bold;
}

.theorem::before {
    display: block;
    content: "Theorem.";
    font-weight: bold;
}

.conjecture::before {
    display: block;
    content: "Conjecture.";
    font-weight: bold;
}

.example::before {
    display: block;
    content: "Example.";
    font-weight: bold;
}

.proof::before {
    display: block;
    content: "Proof.";
    font-weight: bold;
}


/*
.goal::before {
    position: absolute;
    top: -20px;
    left: calc(50% - 50px);
    left: -40px;
    background-color: #f4fafe;
    display: block;
    width: 100px;
    font-weight: bold;
    content: "Goal";
    border-radius: 25px;
}
*/


.theorem {
    background-color: var(--theorem-color);
}

.observation {
    background-color: var(--observation-color);
}

.definition {
    background-color: var(--definition-color);
}

.goal {
    background-color: var(--goal-color);
    border: 1px solid black;
    width: 70%;
    position: relative;
    left: 15%;
    margin-top: 20px;
    border-radius: 30px;
}

.example {
    background-color: var(--example-color);
}

.proof {
    background-color: var(--proof-color);
}

.conjecture {
    background-color: var(--conjecture-color);
}

.citation {
    position: absolute;
    top: 10px;
    right: 20px;
    color: var(--citation-color);
}

.inline-citation{
    position: absolute;
    right: 10px;
    color:var(--citation-color);
}

@media (max-width: 1600px) {
    .inline-citation {
        position: relative;
        top:0;
        left:0;
    }
}

.comment {
    flex-grow: 1;
    width: 40%;
    height: 100%;
    align-self: center;
    text-align: center;
}

.exponent {
    font-size: 0.5em; color: red; vertical-align: super;
    font-weight: bold;
}

.timeline {
    margin-top: 50px;
    margin-bottom: 25px;
}

.timeline > hr {
    border: 0;
    height: 5px;
    margin: 18px 0;
    position: relative;
    background: var(--timeline-color);
    /*background: -moz-linear-gradient(left, rgba(0,0,0,0) 0%, rgba(0,0,0,0) 10%, rgba(0,0,0,0.65) 50%, rgba(0,0,0,0) 90%, rgba(0,0,0,0) 100%);
    background: -webkit-linear-gradient(left, rgba(0,0,0,0) 0%,rgba(0,0,0,0) 10%,rgba(0,0,0,0.65) 50%,rgba(0,0,0,0) 90%,rgba(0,0,0,0) 100%);
    background: linear-gradient(left, rgba(0,0,0,0) 0%,rgba(0,0,0,0) 10%,rgba(0,0,0,0.65) 50%,rgba(0,0,0,0) 90%,rgba(0,0,0,0) 100%);*/
}

.timeline_dates {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: space-evenly;
    margin-bottom: 100px;
}

.timeline_date {
    position: relative;
    color: gray;
    flex-grow: 1;
    flex-basis: 0;
}

.timeline_date::after {
    content: '';
    position: absolute;
    height: 25px;
    width: 25px;
  transform: translate(-40px,-36px);
  background-color: white;
  border: 4px solid var(--timeline-std-color);
  /*top: -45px;*/
  border-radius: 50%;
  z-index: 1;
}


.timeline_date.complexity::after {
    border: 4px solid var(--timeline-color-var1);
}

.timeline_date.both::after {
    border: 4px solid var(--timeline-color-var2);
}

.timeline_date.toggled::after {
    content: '';
    position: absolute;
    height: 25px;
    width: 25px;
  transform: translate(-40px,-36px);
  background-color: var(--timeline-std-color);
  border: 4px solid var(--timeline-std-color);
  /*top: -45px;*/
  border-radius: 50%;
  z-index: 1;
}

.timeline_date.complexity.toggled::after {
    background-color: var(--timeline-color-var1);
    border: 4px solid var(--timeline-color-var1);
}

.timeline_date.both.toggled::after {
    border: 4px solid var(--timeline-color-var2);
    background-color: var(--timeline-color-var2);
}

.timeline_descs {
    margin-top: 50px;
    position: relative;
    /*display: grid;
  place-items: center;
  grid-template-areas: "inner-div";*/
}



.timeline_desc {
    /*position: absolute;
    height: auto;
    top: 0;
    left: 0;*/
}

.deck-before.vanish:not(.deck-child-current), .vanish.deck-previous:not(.deck-child-current), .vanish.deck-after, .vanish.deck-next {
    display: none;
}

.todo {
    position: absolute;
    top:50px;
    right: 50px;
    border: 1px solid black;
    padding: 2px;
}

@media (min-width: 1500px) {
    .small_mathjax {
        display: none;
    }
}

@media (max-width: 1500px) {
    .large_mathjax {
        display: none;
    }
}

h2{
    white-space: nowrap;
    position: relative;
    left: -25px;
}