@import "normalize.css" layer(https://unpkg.com/normalize.css);

@font-face {
  font-family: "Geist Sans";
  src: url("https://assets.codepen.io/605876/GeistVF.ttf") format("truetype");
}

*,
*:after,
*:before {
  box-sizing: border-box;
}

body {
  display: flex;
  place-items: center;
  min-height: 100vh;
  font-family:  "Geist Sans", "SF Pro Text", "SF Pro Icons", "AOS Icons", "Helvetica Neue", Helvetica, Arial, sans-serif, system-ui;
  background: hsl(0 0% 6%);
}

body::before {
  --line: hsl(0 0% 95% / 0.15);
  content: "";
  height: 100vh;
  width: 100vw;
  position: fixed;
  background:
    linear-gradient(90deg, var(--line) 1px, transparent 1px 10vmin) 0 -5vmin / 10vmin 10vmin,
    linear-gradient(var(--line) 1px, transparent 1px 10vmin) 0 -5vmin / 10vmin 10vmin;
  mask: linear-gradient(-15deg, transparent 30%, white);
  top: 0;
  z-index: -1;
  transform: translate3d(0, 0, -100vmin);
}

@layer foundation {
  .control {
    position: relative;
    display: grid;
    place-items: center;
    margin: 0 auto;
  }

  .sr-only {
  	position: absolute;
		width: 1px;
		height: 1px;
		padding: 0;
		margin: -1px;
		overflow: hidden;
		clip: rect(0, 0, 0, 0);
		white-space: nowrap;
		border-width: 0;
  }

  .control:focus-within,
  .control:hover {
    --active: 1;
  }

  [type="range"] {
    width: 300px;
    opacity: 0;
    height: 60px;
  }

  [type="range"]:hover {
    cursor: -webkit-grab;
  }
  [type="range"]:active {
    cursor: -webkit-grabbing;
  }

  [type=range]:focus-visible {
    outline-offset: 0.25rem;
    outline-color: transparent;
  }

  @property --shift {
  	initial-value: 0;
  	inherits: true;
  	syntax: '<integer>';
  }

  .tooltip {
    font-size: 1rem;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    pointer-events: none;
    transform: translateY(calc(var(--shift, 0) * 50%));
    transition: transform var(--speed) var(--timing);
    z-index: 2;
  }
  @keyframes shift {
  	0%, 31%, 61%, 100% { --shift: 0; }
  	32%, 60% { --shift: 1; }
  }

  .tooltip::after,
  .tooltip::before {
    font-variant: tabular-nums;
    position: absolute;
    top: 50%;
    translate: 0 -50%;
    font-weight: bold;
    color: white;
    font-weight: 40;
    font-family: monospace;
  }

  [type="range"]::-webkit-slider-thumb {
    appearance: none;
    -webkitappearance: none;
    height: 120px;
    width: 40px;
    margin-top: 0px;
	  opacity: 1;
	}
	[type="range"]::-webkit-slider-runnable-track {
  	-webkit-appearance: none;
	  height: 120px;
	  background: hsl(10 80% 50% / 0.5);
	  margin-top: -60px; /* You need to specify a margin in Chrome, but in Firefox and IE it is automatic */
	  box-shadow: 1px 1px 1px #000000, 0px 0px 1px #0d0d0d; 
	}
	[type=range]::-moz-range-track {
	  height: 120px;
	  background: hsl(10 80% 50% / 0.5);
	  margin-top: -60px; /* You need to specify a margin in Chrome, but in Firefox and IE it is automatic */
	  box-shadow: 1px 1px 1px #000000, 0px 0px 1px #0d0d0d; 
	}
}


@layer scrolls {
  @property --value {
    initial-value: 0;
    syntax: '<integer>';
    inherits: true;
  }

  @keyframes sync {
    to { --value: 100; }
  }

  [type=range] {
    overflow: hidden;
    opacity: 0;
    touch-action: none;
  }

  .control {
    animation: sync both linear reverse, shift both linear;
    animation-timeline: --thumb;
    animation-range: contain;
  }

  .control__track {
  	--coffee: hsl(24 74% calc(24% + (30% * ((100 - var(--value, 0)) / 100)) / 1) / 0.4);
  	--milk: hsl(0 0% 100% / calc(0.1 + (0.4 * ((100 - var(--value, 0)) / 100))));
  	height: calc(50% + (var(--shift) * 50%));
  	width: 100%;
  	position: absolute;
  	bottom: 0;
  	pointer-events: none;
  	transition: height var(--speed) var(--timing);
  }

  .control__track::before {
  	content: "";
  	position: absolute;
  	top: 0;
  	bottom: 0;
  	left: 0;
  	width: calc(var(--value, 0) * 1% - 0.5rem);
  	background: var(--coffee);
  	border-radius: 4px;
  	transition: width var(--update);
  }
  .control__track::after {
  	content: "";
  	position: absolute;
  	top: 0;
  	bottom: 0;
  	right: 0;
  	width: calc((100 - var(--value, 0)) * 1% - 0.5rem);
  	background: var(--milk);
  	border-radius: 4px;
  	transition: width var(--update);
  }
  .control__indicator {
  	height: 75%;
  	border-radius: 4px;
  	width: 4px;
  	position: absolute;
  	top: 50%;
  	background: hsl(0 0% 100% / calc((var(--active, 0) * 0.5) + 0.5));
  	left:calc(var(--value, 0) * 1%);
  	z-index: 2;
  	translate: -50% -50%;
  	transition: left var(--update);
  }

  :root {
    --speed: 0.65s;
    --update: 0s;
    --timing: linear(
	    0, 0.5007 7.21%, 0.7803 12.29%,
	    0.8883 14.93%, 0.9724 17.63%,
	    1.0343 20.44%, 1.0754 23.44%,
	    1.0898 25.22%, 1.0984 27.11%,
	    1.1014 29.15%, 1.0989 31.4%,
	    1.0854 35.23%, 1.0196 48.86%,
	    1.0043 54.06%, 0.9956 59.6%,
	    0.9925 68.11%, 1
	  );
    timeline-scope: --thumb;
  }

  @supports(animation-timeline: scroll()) {
	  :root {
	    --speed: 0.65s;
	    --update: 0.1s;
	    --timing: linear(
		    0, 0.5007 7.21%, 0.7803 12.29%,
		    0.8883 14.93%, 0.9724 17.63%,
		    1.0343 20.44%, 1.0754 23.44%,
		    1.0898 25.22%, 1.0984 27.11%,
		    1.1014 29.15%, 1.0989 31.4%,
		    1.0854 35.23%, 1.0196 48.86%,
		    1.0043 54.06%, 0.9956 59.6%,
		    0.9925 68.11%, 1
		  );
	    timeline-scope: --thumb;
	  }

	  [type="range"]::-webkit-slider-thumb {
	    view-timeline-name: --thumb;
	    view-timeline-axis: inline;
	  }
  }

}


@layer tip {
  
  .tooltip {
    counter-reset: low var(--value) high calc(100 - var(--value));
  }
  
  .tooltip::before {
  	--range: calc((70 - (var(--value) / 100 * 10)) * 1%);
  	color: hsl(24 74% 54%);
    content: "COFFEE " counter(low) "%";
    mask: linear-gradient(90deg, hsl(0 0% 100% / 0.6) var(--range), hsl(0 0% 100% / 1) var(--range));
    left: 0.5rem;

  }
  .tooltip::after {
    --range: calc((50 - (var(--value) / 100 * 10)) * 1%);
    content: counter(high) "% MILK";
    mask: linear-gradient(90deg, hsl(0 0% 100% / 1) var(--range), hsl(0 0% 100% / 0.5) var(--range));
    right: 0.5rem;
  }

}

/* Socials stuff */
.x-link, .bear-link {
	color: hsl(0 0% 100%);
	position: fixed;
	bottom: 1rem;
	left: 1rem;
	width: 48px;
	aspect-ratio: 1;
	display: grid;
	place-items: center;
	opacity: 0.8;
}

.bear-link {
	bottom: unset;
	top: 1rem;
}

:where(.x-link, .bear-link):is(:hover, :focus-visible) {
	opacity: 1;
}
.bear-link svg {
	width: 75%;
}
.x-link svg {
	width: 50%;
}