/**
 * inspired by https://github.com/yairEO/ui-range
 */
@charset "UTF-8";
.range-slider.flat {
  --thumb-size: 25px;
  --track-height: calc(var(--thumb-size) / 3);
  --progress-shadow: none;
  --progress-flll-shadow: none;
  --thumb-shadow: 0 0 0 7px var(--primary-color) inset, 0 0 0 99px white inset;
  --thumb-shadow-hover: 0 0 0 9px var(--primary-color) inset,
      0 0 0 99px white inset;
  --thumb-shadow-active: 0 0 0 13px var(--primary-color) inset;
  --min:1970;
  --max:2050;
  --value-a:1999;
  --value-b:2030;
  --text-value-a:"1999";
  --text-value-b:"2030";
  --suffix:"";
}

.range-slider {
  --primary-color: #0366d6;
  --value-offset-y: var(--ticks-gap);
  --value-active-color: white;
  --value-background: transparent;
  --value-background-hover: var(--primary-color);
  --value-font: 700 12px/1 Arial;
  --fill-color: var(--primary-color);
  --progress-background: #eee;
  --progress-radius: 20px;
  --track-height: calc(var(--thumb-size) / 2);
  --min-max-font: 12px Arial;
  --min-max-opacity: 0.5;
  --min-max-x-offset: 10%; /* 50% to center */
  --thumb-size: 22px;
  --thumb-color: white;
  --thumb-shadow: 0 0 3px rgba(0, 0, 0, 0.4), 0 0 1px rgba(0, 0, 0, 0.5) inset,
      0 0 0 99px var(--thumb-color) inset;
  --thumb-shadow-active: 0 0 0 calc(var(--thumb-size) / 4) inset
      var(--thumb-color),
      0 0 0 99px var(--primary-color) inset, 0 0 3px rgba(0, 0, 0, 0.4);
  --thumb-shadow-hover: var(--thumb-shadow);
  --ticks-thickness: 1px;
  --ticks-height: 5px;
  --ticks-gap: var(
      --ticks-height,
      0
  ); /* vertical space between the ticks and the progress bar */
  --ticks-color: silver;
  /* ⚠️ BELOW VARIABLES SHOULD NOT BE CHANGED */
  --step: 1;
  --ticks-count: Calc(var(--max) - var(--min)) / var(--step);
  --maxTicksAllowed: 30;
  --too-many-ticks: Min(1, Max(var(--ticks-count) - var(--maxTicksAllowed), 0));
  --x-step: Max(
      var(--step),
      var(--too-many-ticks) * (var(--max) - var(--min))
  ); /* manipulate the number of steps if too many ticks exist, so there would only be 2 */
  --tickInterval: 100/ ((var(--max) - var(--min)) / var(--step)) * var(--tickEvery, 1);
  --tickIntervalPerc: calc(
      (100% - var(--thumb-size)) / ((var(--max) - var(--min)) / var(--x-step)) *
      var(--tickEvery, 1)
  );
  --value-a: Clamp(
      var(--min),
      var(--value, 0),
      var(--max)
  ); /* default value ("--value" is used in single-range markup) */
  --value-b: var(--value, 0); /* default value */
  --text-value-a: var(--text-value, "");
  --completed-a: calc(
      (var(--value-a) - var(--min)) / (var(--max) - var(--min)) * 100
  );
  --completed-b: calc(
      (var(--value-b) - var(--min)) / (var(--max) - var(--min)) * 100
  );
  --ca: Min(var(--completed-a), var(--completed-b));
  --cb: Max(var(--completed-a), var(--completed-b));
  /* breakdown of the below super-complex brain-breaking CSS math:
  /* "clamp" is used to ensure either "-1" or "1"
  /* "calc" is used to inflat the outcome into a huge number, to get rid of any value between -1 & 1
  /* if absolute diff of both completed % is above "5" (%)
  /* ".001" bumps the value just a bit, to avoid a scenario where calc resulted in "0" (then clamp will also be "0")
  */
  --thumbs-too-close: Clamp(
      -1,
      1000 * (Min(1, Max(var(--cb) - var(--ca) - 5, -1)) + 0.001),
      1
  );
  --thumb-close-to-min: Min(1, Max(var(--ca) - 2, 0)); /* 2% threshold */
  --thumb-close-to-max: Min(1, Max(98 - var(--cb), 0)); /* 2% threshold */
  display: inline-block;
  height: max(var(--track-height), var(--thumb-size));
  /* margin: calc((var(--thumb-size) - var(--track-height)) * -.25) var(--thumb-size) 0; */
  background: linear-gradient(to right, var(--ticks-color) var(--ticks-thickness), transparent 1px) repeat-x;
  background-size: var(--tickIntervalPerc) var(--ticks-height);
  background-position-x: calc(var(--thumb-size) / 2 - var(--ticks-thickness) / 2);
  background-position-y: var(--flip-y, bottom);
  padding-bottom: var(--flip-y, var(--ticks-gap));
  padding-top: calc(var(--flip-y) * var(--ticks-gap));
  position: relative;
  z-index: 1;
  /* mix/max texts */
}
.range-slider[data-ticks-position=top] {
  --flip-y: 1;
}
.range-slider::before, .range-slider::after {
  --offset: calc(var(--thumb-size) / 2);
  content: counter(x);
  display: var(--show-min-max, block);
  font: var(--min-max-font);
  position: absolute;
  bottom: var(--flip-y, -2.5ch);
  top: calc(-2.5ch * var(--flip-y));
  opacity: clamp(0, var(--at-edge), var(--min-max-opacity));
  transform: translateX(calc(var(--min-max-x-offset) * var(--before, -1) * -1)) scale(var(--at-edge));
  pointer-events: none;
}
.range-slider::before {
  --before: 1;
  --at-edge: var(--thumb-close-to-min);
  counter-reset: x var(--min);
  left: var(--offset);
}
.range-slider::after {
  --at-edge: var(--thumb-close-to-max);
  counter-reset: x var(--max);
  right: var(--offset);
}
.range-slider__values {
  position: relative;
  top: 50%;
  line-height: 0;
  text-align: justify;
  width: 100%;
  pointer-events: none;
  margin: 0 auto;
  z-index: 5;
  /* trick so "justify" will work */
}
.range-slider__values::after {
  content: "";
  width: 100%;
  display: inline-block;
  height: 0;
  background: red;
}
.range-slider__progress {
  --start-end: calc(var(--thumb-size) / 2);
  --clip-end: calc(100% - (var(--cb)) * 1%);
  --clip-start: calc(var(--ca) * 1%);
  --clip: inset(-20px var(--clip-end) -20px var(--clip-start));
  position: absolute;
  left: var(--start-end);
  right: var(--start-end);
  top: calc(var(--ticks-gap) * var(--flip-y, 0) + var(--thumb-size) / 2 - var(--track-height) / 2);
  /*  transform: var(--flip-y, translateY(-50%) translateZ(0)); */
  height: calc(var(--track-height));
  background: var(--progress-background, #eee);
  pointer-events: none;
  z-index: -1;
  border-radius: var(--progress-radius);
  /* fill area */
  /* shadow-effect */
}
.range-slider__progress::before {
  content: "";
  position: absolute;
  /* left: Clamp(0%, calc(var(--ca) * 1%), 100%); // confine to 0 or above */
  /* width: Min(100%, calc((var(--cb) - var(--ca)) * 1%)); // confine to maximum 100% */
  left: 0;
  right: 0;
  clip-path: var(--clip);
  top: 0;
  bottom: 0;
  background: var(--fill-color, black);
  box-shadow: var(--progress-flll-shadow);
  z-index: 1;
  border-radius: inherit;
}
.range-slider__progress::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  box-shadow: var(--progress-shadow);
  pointer-events: none;
  border-radius: inherit;
}
.range-slider > input {
  -webkit-appearance: none;
  width: 100%;
  height: var(--thumb-size);
  margin: 0;
  position: absolute;
  left: 0;
  top: calc(50% - max(var(--track-height), var(--thumb-size)) / 2 + var(--ticks-gap) / 2 * var(--flip-y, -1));
  cursor: -webkit-grab;
  cursor: grab;
  outline: none;
  background: none;
  /* non-multiple range should not clip start of progress bar */
}
.range-slider > input:not(:only-of-type) {
  pointer-events: none;
}
.range-slider > input::-webkit-slider-thumb {
  appearance: none;
  height: var(--thumb-size);
  width: var(--thumb-size);
  transform: var(--thumb-transform);
  border-radius: var(--thumb-radius, 50%);
  background: var(--thumb-color);
  box-shadow: var(--thumb-shadow);
  border: none;
  pointer-events: auto;
  transition: 0.1s;
}
.range-slider > input::-moz-range-thumb {
  appearance: none;
  height: var(--thumb-size);
  width: var(--thumb-size);
  transform: var(--thumb-transform);
  border-radius: var(--thumb-radius, 50%);
  background: var(--thumb-color);
  box-shadow: var(--thumb-shadow);
  border: none;
  pointer-events: auto;
  transition: 0.1s;
}
.range-slider > input::-ms-thumb {
  appearance: none;
  height: var(--thumb-size);
  width: var(--thumb-size);
  transform: var(--thumb-transform);
  border-radius: var(--thumb-radius, 50%);
  background: var(--thumb-color);
  box-shadow: var(--thumb-shadow);
  border: none;
  pointer-events: auto;
  transition: 0.1s;
}
.range-slider > input:hover {
  --thumb-shadow: var(--thumb-shadow-hover);
}
.range-slider > input:hover + output {
  --value-background: var(--value-background-hover);
  --y-offset: -5px;
  color: var(--value-active-color);
  box-shadow: 0 0 0 3px var(--value-background);
}
.range-slider > input:active {
  --thumb-shadow: var(--thumb-shadow-active);
  cursor: grabbing;
  z-index: 2; /* when sliding left thumb over the right or vice-versa, make sure the moved thumb is on top */
}
.range-slider > input:active + output {
  transition: 0s;
}
.range-slider > input:nth-of-type(1) {
  --is-left-most: Clamp(0, (var(--value-a) - var(--value-b)) * 99999, 1);
}
.range-slider > input:nth-of-type(1) + output {
  --value: var(--value-a);
  --x-offset: calc(var(--completed-a) * -1%);
}
.range-slider > input:nth-of-type(1) + output:not(:only-of-type) {
  --flip: calc(var(--thumbs-too-close) * -1);
}
.range-slider > input:nth-of-type(1) + output::after {
  content: var(--prefix, "") var(--text-value-a) var(--suffix, "");
}
.range-slider > input:nth-of-type(2) {
  --is-left-most: Clamp(0, (var(--value-b) - var(--value-a)) * 99999, 1);
}
.range-slider > input:nth-of-type(2) + output {
  --value: var(--value-b);
}
.range-slider > input:only-of-type ~ .range-slider__progress {
  --clip-start: 0;
}
.range-slider > input + output {
  --flip: -1;
  --x-offset: calc(var(--completed-b) * -1%);
  --pos: calc(
      ((var(--value) - var(--min)) / (var(--max) - var(--min))) * 100%
  );
  pointer-events: none;
  position: absolute;
  z-index: 5;
  background: var(--value-background);
  border-radius: 10px;
  padding: 2px 4px;
  left: var(--pos);
  transform: translate(var(--x-offset), calc(150% * var(--flip) - (var(--y-offset, 0px) + var(--value-offset-y)) * var(--flip)));
  transition: all 0.12s ease-out, left 0s;
}
.range-slider > input + output::after {
  content: var(--prefix, "") var(--text-value-b) var(--suffix, "");
  font: var(--value-font);
}

.range-slider {
  /*width: clamp(300px, 50vw, 800px);*/
  width: 99%;
  min-width: 200px;
  margin-top: 25px;
}