@import url('https://fonts.googleapis.com/css?family=Poppins:400,500,600,700&display=swap');
* {
  border: 0;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --hue: 223;
  --red: hsl(323, 98%, 51%);
  --white: hsl(210, 17%, 98%);
  --primary: hsl(var(--hue),90%,50%);
  --primary-t: hsla(var(--hue),90%,50%,0);
  --gray1: hsl(var(--hue),40%,40%);
  --gray3: hsl(var(--hue),10%,70%);
  --gray9: hsl(var(--hue),70%,90%);
  --trans-dur: 0.3s;
  --trans-timing: cubic-bezier(0.65,0,0.35,1);
  font-size: calc(28px + (60 - 28) * (100vw - 320px) / (3840 - 320));
}

body,
button {
  color: var(--gray9);
  font: 1em/1.5'Poppins', sans-serif;
  transition: background-color var(--trans-dur), color var(--trans-dur);
} 

body {
  background-color: var(--gray1);
}

.recorder {
  background-color: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  margin: auto;
  outline: transparent;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  -webkit-appearance: none;
  appearance: none;
  -webkit-tap-highlight-color: transparent;
}
.label-start__recorder, .recorder__label-end {
  display: block;
  position: relative;
}
.label-start__recorder, .recorder__label-end-text {
  transition: opacity var(--trans-dur);
}
.label-start__recorder {
  margin-inline: 0 0.5em;
}
.recorder__label-end {
  margin-inline: 0.5em 0;
}
.recorder__label-end-text {
  opacity: 0.4;
}
.recorder__label-end-text + .recorder__label-end-text {
  opacity: 0;
  position: absolute;
  top: 0;
  left: 0;
}
[dir=rtl] .recorder__label-end-text + .recorder__label-end-text {
  right: 0;
  left: auto;
}
.switch__recorder {
  background-color: var(--white);
  border-radius: 0.75em;
  box-shadow: 0 0 0 0.125em var(--primary-t), 0 0.25em 0.25em rgba(0, 0, 0, 0.1);
  display: flex;
  padding: 0.25em;
  width: 2.5em;
  height: 1.5em;
}
.switch__recorder, .recorder__switch-handle {
  transition: background-color var(--trans-dur), box-shadow var(--trans-dur), transform var(--trans-dur) var(--trans-timing), transform-origin var(--trans-dur) var(--trans-timing);
}
.recorder__switch-handle {
  background-color: var(--gray3);
  border-radius: 50%;
  display: block;
  transform-origin: 0 0.5em;
  width: 1em;
  height: 1em;
}
[dir=rtl] .recorder__switch-handle {
  transform-origin: 100% 0.5em;
}
.timer__recorder {
  display: block;
  overflow: visible;
  width: 100%;
  height: auto;
}
.recorder__timer-ring {
  transition: r var(--trans-dur) var(--trans-timing), stroke-dasharray var(--trans-dur) var(--trans-timing), stroke-dashoffset var(--trans-dur) var(--trans-timing), stroke-width var(--trans-dur) var(--trans-timing);
}
.recorder:focus-visible .switch__recorder {
  box-shadow: 0 0 0 0.125em var(--primary), 0 0.25em 0.25em rgba(0, 0, 0, 0.1);
}
.recorder:active .recorder__switch-handle {
  transform: scaleX(1.5);
}
.recorder[aria-pressed=true] .label-start__recorder {
  opacity: 0.4;
}
.recorder[aria-pressed=true] .recorder__label-end-text {
  opacity: 0;
}
.recorder[aria-pressed=true] .recorder__label-end-text + .recorder__label-end-text {
  opacity: 1;
}
.recorder[aria-pressed=true] .recorder__switch-handle {
  background-color: var(--red);
  transform: translateX(100%);
  transform-origin: 100% 0.5em;
}
[dir=rtl] .recorder[aria-pressed=true] .recorder__switch-handle {
  transform: translateX(-100%);
  transform-origin: 0 0.5em;
}
.recorder[aria-pressed=true] .recorder__timer-ring {
  r: 6.5px;
  stroke-width: 3px;
}
.recorder[aria-pressed=true]:active .recorder__switch-handle {
  transform: translateX(100%) scaleX(1.5);
}
[dir=rtl] .recorder[aria-pressed=true]:active .recorder__switch-handle {
  transform: translateX(-100%) scaleX(1.5);
}