body {
  display: flex;
  justify-content: center;
  align-items: center;
  min-width: 100dvw;
  min-height: 100dvh;
}

polyline {
  vector-effect: non-scaling-stroke;
}

input[type=number] {
  -moz-appearance: textfield;
  appearance: textfield;
  margin: 0;
}

input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

#eases-visualizer {
  --unit: 1dvw;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 100dvw;
  min-height: 100dvh;
}

@media (min-width: 640px) {
  #eases-visualizer {
    --unit: .7125dvw;
  }
}

#eases-editor {
  position: fixed;
  right: 0;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 70vw;
}

@media (min-width: 640px) {
  #eases-editor {
    width: 50%;
    height: 100%;
  }
}

#eases-container {
  --one-cell: calc(var(--unit) * 10);
  position: relative;
  width: calc(var(--one-cell) * 5);
  height: calc(var(--one-cell) * 5);
  display: grid;
  grid-template-columns: 3fr 1fr 1fr;
  grid-template-rows: 1fr 1fr 3fr;
  gap: 0px 0px;
  grid-auto-flow: row;
  grid-template-areas:
    "time time ."
    "graph graph preview"
    "graph graph preview";
}

.eases-editor-cell {
  position: relative;
}

#eases-graph {
  grid-area: graph;
  border: 1px dotted rgba(255, 255, 255, .5);
}

#eases-container:before {
  content: "";
  position: absolute;
  left: -100%;
  top: -100%;
  display: block;
  width: 300%;
  height: 300%;
  background:
    linear-gradient(-90deg, rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(-90deg, rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(transparent 3px, var(--black) 3px, var(--black) calc(var(--one-cell) - 2px), transparent calc(var(--one-cell) - 2px)),
    linear-gradient(-90deg, var(--white) 1px, transparent 1px),
    linear-gradient(-90deg, transparent 3px, var(--black) 3px, var(--black) calc(var(--one-cell) - 2px), transparent calc(var(--one-cell) - 2px)),
    linear-gradient(var(--white) 1px, transparent 1px), var(--black);
  background-size:
    calc(var(--one-cell) / 10) calc(var(--one-cell) / 10),
    calc(var(--one-cell) / 10) calc(var(--one-cell) / 10),
    var(--one-cell) var(--one-cell),
    var(--one-cell) var(--one-cell),
    var(--one-cell) var(--one-cell),
    var(--one-cell) var(--one-cell),
    var(--one-cell) var(--one-cell),
    var(--one-cell) var(--one-cell);
}

#eases-graph svg {
  overflow: visible;
  position: absolute;
  width: 100%;
  height: 100%;
  stroke-width: 1px;
  will-change: transform;
}

#eases-time {
  grid-area: time;
  border-top: 1px dashed rgba(255, 255, 255, .5);
}

#eases-preview {
  grid-area: preview;
  border-right: 1px dashed rgba(255, 255, 255, .5);
}

.axis {
  z-index: 1;
  position: absolute;
}

.axis:after {
  content: "";
  display: block;
  position: absolute;
  top: -1.25rem;
  right: -1.25rem;
  width: calc(2.5rem + 1px);
  height: calc(2.5rem + 1px);
}

.axis-x {
  bottom: -1px;
  right: -1px;
  width: calc(var(--unit) * 50);
  height: 1px;
  background-color: var(--red);
  z-index: 1;
}

.axis-x:not(:first-child) {
  z-index: 0;
}

.axis-x:first-child:after {
  background-color: var(--red);
  box-shadow: 0 0 0 1px var(--black);
}

.axis-x:not(:first-child):after {
  background-color: var(--red);
}

.axis-y {
  top: 0;
  left: -1px;
  width: 1px;
  height: calc(var(--unit) * 50);
  background-color: rgba(255, 255, 255, .25);
}

.axis-y:after {
  content: attr(data-value);
  top: -1.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: .75rem;
  font-weight: bold;
  color: var(--white);
  background-color: var(--black);
  border: 1px solid rgba(255, 255, 255, .25);
}

/* Easings config */

#eases-config {
  position: sticky;
  z-index: 2;
  top: 0;
  width: 100%;
  min-height: 100dvh;
  margin-top: 70vw;
  background: var(--black);
}

@media (min-width: 640px) {
  #eases-config {
    width: 50%;
    margin-top: 0;
  }
}

#ease-controls {
  position: sticky;
  z-index: 2;
  top: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  width: 100%;
  padding: .75rem;
  padding-bottom: 0;
  background: var(--black);
  box-shadow: 0 10px 10px 0 var(--black);
  border-radius: 1rem 1rem 0 0;
}

#ease-name {
  background: transparent;
  color: var(--red);
  width: 100%;
  margin: 0.125rem;
  font-size: 2rem;
}

@media (min-width: 1280px) {
  #ease-controls {
    padding: 1.5rem;
    padding-bottom: 0;
  }

  #ease-name {
    margin: 0.5rem;
  }
}

#ease-parameters {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  width: 100%;
}

.ease-parameter {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  width: calc(25% - .25rem);
  margin: .125rem;
}

.parameter-legend {
  display: block;
  height: 1rem;
  font-size: .75rem;
  margin-bottom: .5rem;
}

.ease-parameter input[type="number"] {
  display: none;
}

.ease-parameter input[type="range"] {
  width: 100%;
}

@media (min-width: 1280px) {
  .ease-parameter input[type="number"] {
    display: block;
    width: 2.75rem;
    background-color: transparent;
    color: var(--white);
  }
  .ease-parameter input[type="range"] {
    width: calc(100% - 2.75rem);
  }
}

.ease-parameter input:disabled {
  opacity: .25;
}

input[type="range"][value] {
  position: relative;
  height: 2rem;
  -webkit-appearance: none;
  background-color: transparent;
  color: currentColor;
}

input[type="range"][value]:focus {
  outline: none;
}

input[type="range"][value]:after {
  content: "";
  position: absolute;
  top: 1rem;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: currentColor;
}

input[type="range"][value]::-webkit-slider-thumb {
  position: relative;
  z-index: 2;
  -webkit-appearance: none;
  border-radius: 4px;
  border: 1px solid currentColor;
  width: 16px;
  height: 29px;
  background-color: var(--black);
  background-image: radial-gradient(transparent 1px, rgba(0, 0, 0, .7) 0), radial-gradient(transparent 1px, currentColor 0), radial-gradient(currentColor 1px, transparent 0);
  background-size: 3px 3px, 3px 3px, 3px 3px;
  background-position: -2px -2px, -2px -2px, -2px -2px;
  box-shadow: inset 0 0 0 4.5px rgba(0, 0, 0, .7), inset 0 0 0 4.5px currentColor;
}

/* Ease buttons */

#eases-list {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  width: 100%;
  min-height: 100%;
  padding: .75rem;
  background-color: var(--black);
}

@media (min-width: 1280px) {
  #eases-list {
    padding: 1.5rem;
  }
}

.ease-button {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: calc(25% - .25rem);
  margin: .125rem;
  padding: .5rem;
  background-color: rgba(255, 255, 255, .05);
  color: var(--white);
  cursor: pointer;
  border-radius: .6rem;
  transition: background-color .25s ease-in-out;
  font-size: .75rem;
}

@media (min-width: 1280px) {
  .ease-button {
    width: calc(12.5% - .25rem);
  }
}

.ease-button:hover {
  background-color: rgba(255, 255, 255, .1);
  transition: background-color .05s ease-out;
}

.ease-button.is-active {
  background: var(--red);
  color: var(--black);
}

.ease-button .ease-config {
  position: absolute;
  top: .25rem;
  right: .41rem;
  font-size: .75rem;
}

.ease-button svg {
  overflow: visible;
  width: calc(100% - 3rem);
  margin-top: 0.25rem;
  margin-bottom: 0.5rem;
}

@media (min-width: 640px) {
  .ease-button svg {
    width: calc(100% - 2rem);
    margin-top: 1rem;
    margin-bottom: 1rem;
  }
}

.ease-button svg polyline {
  stroke: var(--red);
}

.ease-button.is-active svg polyline {
  stroke: var(--black);
}