@import url('https://fonts.googleapis.com/css?family=Lato:400,700');
@import url('https://meyerweb.com/eric/tools/css/reset/reset.css');

:root {
    background-color: #222;
    color: #AAA;
    font-size: 16px;
    font-family: "Lato", sans-serif;
}
::selection {
    background-color: #EEE;
    color: #222;
    border-radius: 1rem;
}
* {
    box-sizing: border-box;
}

:root {
    --border-width: 1px;
    --border-style: dotted;
    --border-color: #666;
}
.b-t {
    border-top: var(--border-width) var(--border-style) var(--border-color);
}
.b-r {
    border-right: var(--border-width) var(--border-style) var(--border-color);
}
.b-b {
    border-bottom: var(--border-width) var(--border-style) var(--border-color);
}
.b-l {
    border-left: var(--border-width) var(--border-style) var(--border-color);
}
.b-solid {
    --border-style: solid !important;
}
.b-large {
    --border-width: .25rem;
}
.b-light {
    --border-color: #BBB;
}

.p-0 {
    padding: 0 !important;
}

.color-clear {
    color: #DDD !important;
}

body {
  min-height: 100vh;
  display: grid;
  cursor: default;
}
@media (max-width: 48rem) {
    body {
        grid-template-columns: 1fr;
        grid-template-rows: 100vh auto 4rem;
    }
    main {
        grid-area: 1 / 1 / span 1 / span 1;
    }
    aside {
        grid-area: 2 / 1 / span 1 / span 1;
        min-height: 50vh;
        border-top: var(--border-width) solid var(--border-color);
    }
    footer {
        grid-area: 3 / 1 / span 1 / span 1;
    }
}
@media (min-width: 48rem) {
    body {
        grid-template-columns: 1fr 2fr;
        grid-template-rows: calc(100vh - 4rem) 4rem;
    }
    aside {
        grid-area: 1 / 1 / span 1 / span 1;
        overflow-y: auto;
        overflow-x: hidden;
    }
    main {
        grid-area: 1 / 2 / span 2 / span 1;
    }
    footer {
        grid-area: 2 / 1 / span 1 / span 1;
    }
}

h2 {
    font-size: 1rem;
    line-height: 2vw;
    position: absolute;
    left: 3vw;
    top: 1.5vw;
}

.history {
    width: 100%;
    height: 100%;
    /* background-color: red; */
    padding: 5vw 0 16vw 30vw;
    list-style-type: decimal-leading-zero;
    list-style-position: outside;
    display: flex;
    flex-direction: column;
    gap: .5vw;
    z-index: -1;
}
@media (min-width: 48rem) {
    .history {
        padding: 3vw 0 4vw 10vw;
    }
}
.history > :first-of-type::marker {
    color: #EEE;
}
.history__item {
    text-align: center;
    transform: rotate(-15deg);
    font-size: 12vw;
}
@media (min-width: 48rem) {
    .history__item {
        font-size: 4vw;
    }
}

main {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    grid-template-rows: 1fr 3fr 1fr;
}
.section {
    width: 100%;
    height: 100%;
    padding-top: 1rem;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.section.section--span-2 {
    grid-column-end: span 2;
}
.section.section--span-3 {
    grid-column-end: span 3;
}
.section.section--span-full {
    grid-column-end: span 6;
}

.section__help-btn {
    width: 2vw;
    height: 2vw;
    background-color: #333;
    border: 1px dotted #555;
    border-radius: 50%;
    color: inherit;
    font-family: inherit;
    font-weight: bold;
    position: absolute;
    right: 1.5vw;
    top: 1.5vw;
}
.section__help-btn[title]:hover::after {
    content: attr(title);
    position: absolute;
    bottom: -125%;
    right: 0;
    white-space: nowrap;
    background-color: #444;
    color: #fff;
    line-height: 3em;
    padding: 0 1em;
}
.section__help-btn[title]::after {
    pointer-events: none;
}

.value {
    font-size: 10vmin;
    line-height: .8em;
}
@media (min-width: 48rem) {
    .value {
        font-size: 6vmin;
    }
}
.value__int {
    color: #EEE;
}
.value__float {
    color: #BBB;
    font-size: .8em;
    line-height: 1.7em;
    
}
.value__unit {
    color: #BBB;
    font-size: .6em;
}

.click-button {
    width: 100%;
    height: 100%;
    border: none;
    background-color: transparent;
    color: inherit;
    font-size: 20vmin;
    z-index: 1;
    display: block;
    cursor: pointer;
}
.click-button:before {
    content: "👆";
}
.click-button:active:before {
    content: "👇";
}
@media (min-width: 48rem) {
    .click-button {
        font-size: 12vmin;
    }
}

.click-button__hold {
    width: 100%;
    height: .25rem;
    opacity: 0;
    background-color: #FFF;
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    transform: scale-x(100%);
    transform-origin: left center;
    transition: transform 1s, opacity 1s;
}
.click-button:active + .click-button__hold {
    opacity: 1;
    transform: scalex(0%);
    transition: transform 0s, opacity 0s;
}

.click-button__background {
    --rainbow: #F22, #F92, #FF2, #9F2, #2F2, #2F9, #2FF, #29F, #22F, #92F, #F2F, #F29, #F22, #F92, #FF2, #9F2, #2F2, #2F9, #2FF, #29F, #22F, #92F, #F2F, #F29, #F22;
    width: 65vmin;
    height: 65vmin;
    border-radius: 36%;
    background-image: linear-gradient(-45deg, var(--rainbow));
    background-size: 80% 80%;
    background-position: 0% 0%;
    position: absolute;
    animation-name: hue-rotate;
    animation-duration: calc(10000ms / max(1, var(--cps)));
    animation-iteration-count: infinite;
    animation-timing-function: linear;
    filter: blur(6vmin) brightness(75%) saturate(500%);
    z-index: -1;
}
@media (min-width: 48rem) {
    .click-button__background {
        width: 35vmin;
        height: 35vmin;
    }
}
@keyframes hue-rotate {
    to {
      background-position: 400% 400%;
    }
}

footer {
    padding: 0 .75rem;
    line-height: 4rem;
}

footer > a {
    color: #DDD;
    text-decoration: dotted underline;
}