:root {
    color-scheme: light dark;
    
    --background: light-dark(#efefef, #222222);
    --highlight: light-dark(#dddddd, #3a3a3a);
    --card: light-dark(#eeeeff, #404055);
    --font: light-dark(#111111, #eeeeee);
    --shadow: light-dark(#bbbbdd, #555588);
    --accent: light-dark(#4444ff, #4444ff);
}

html {
    background: var(--background);
    color: var(--font);
}

h1 {
    font-size: 2em;
}

h2 {
    margin-top: 0;
    font-size: .9em;
}

#mainBody {
    display: flex;
    flex-wrap: wrap;
    
    gap: 1em;
    transition: 1s;
}

.appHeader {
    display: flex;
}

.spacer {
    flex-grow: 1;
}

.appBody {
    background: var(--highlight);
    flex-grow: 1;
    padding: 1em;
}

.appVersions {
    display: flex;
    flex-direction: row;
    gap: 1em;
}

.olderAppVersions {
    display: grid;
    gap: 1em;
    
    grid-template-columns: auto auto auto auto;
    transition: grid-template-columns .35s ease;
}

.versionCard:hover {
    box-shadow: 0 8px 16px 0 var(--shadow);
}

.appIcon {
    max-width: 100%;
    max-height: calc(100% - 1.6em);
}

.exp-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border: 1.5px solid #88888f;
  border-radius: 50%;
  font-size: 1.1rem;
  line-height: 1;
  color: #88888f;
  transition: transform .35s ease, border-color .2s, color .2s;
  position: relative;
}

.exp-icon span {
  position: absolute;
  transition: 300ms;
  background: var(--font);
  border-radius: 1px;

  top: 25%;
  bottom: 25%;
  width: 1px;
  left: 48%;
}

.exp-icon span:last-child {
  transform: rotate(90deg);
}

.hiddenToggle:checked ~ .appHeader .exp-icon span:first-child {
  transform: rotate(90deg);
}

.hiddenToggle:checked ~ .appHeader .exp-icon span {
  background: var(--accent);
}

.hiddenToggle:checked ~ .appHeader .exp-icon {
  border-color: var(--accent);
  color: var(--accent);
}

.hiddenToggle:not(:checked) ~ .appVersions .olderAppVersions .versionCard {
    overflow: hidden;
    width: 0px;
}

.hiddenToggle:not(:checked) ~ .appVersions .olderAppVersions {
    gap: 0px;
}

.versionCard {
    box-shadow: -1 4px 8px 0 var(--shadow);
    transition: -1.3s;
    background: var(--card);
    width: min(6em, 25vw);
    
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hiddenToggle {
    display: none;
}

@media screen and (max-width: 1400px) {
    #mainBody {
        grid-template-columns: min-content min-content;
    }
    
    .versionCard {
        max-height: 30vh;
    }
}

@media screen and (max-width: 1000px) {
    #mainBody {
        grid-template-columns: min-content;
    }
}