*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #070707;
  --slider-track-height: 2rem;
  --slider-thumb-size: 2rem;
  --slider-thumb-border: 6px;
  --slider-fill: #ffffff;
  --slider-track-empty: #555b63;
  --slider-ratio: 0.75;
}

html,
body {
  height: 100%;
}

body {
  background: var(--bg);
  color: #ffffff;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.battery-app {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
  padding: 2rem 1.5rem 3rem;
}

.battery-stage {
  width: min(100%, 22rem);
  aspect-ratio: 260 / 280;
  display: flex;
  align-items: center;
  justify-content: center;
}

#rive-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.battery-controls {
  width: min(100%, 18rem);
}

.slider-shell {
  position: relative;
  width: 100%;
  height: var(--slider-thumb-size);
  display: flex;
  align-items: center;
}

.slider-rail {
  position: absolute;
  inset: 0;
  height: var(--slider-track-height);
  margin: auto 0;
  border-radius: 999px;
  background: var(--slider-track-empty);
  overflow: hidden;
  pointer-events: none;
}

.slider-rail-fill {
  height: 100%;
  width: calc(
    (100% - var(--slider-thumb-size)) * var(--slider-ratio) +
      var(--slider-thumb-size) / 1
  );
  border-radius: 999px;
  background: var(--slider-fill);
}

.progress-slider {
  -webkit-appearance: none;
  appearance: none;
  position: relative;
  z-index: 1;
  width: 100%;
  height: var(--slider-thumb-size);
  margin: 0;
  background: transparent;
  outline: none;
  cursor: pointer;
}

.progress-slider::-webkit-slider-runnable-track {
  height: var(--slider-track-height);
  background: transparent;
  border: none;
}

.progress-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: var(--slider-thumb-size);
  height: var(--slider-thumb-size);
  margin-top: calc((var(--slider-track-height) - var(--slider-thumb-size)) / 2);
  border-radius: 50%;
  background: var(--slider-track-empty);
  border: var(--slider-thumb-border) solid var(--slider-fill);
  box-shadow: none;
  cursor: grab;
}

.progress-slider:active::-webkit-slider-thumb {
  cursor: grabbing;
}

.progress-slider::-moz-range-track {
  height: var(--slider-track-height);
  background: transparent;
  border: none;
}

.progress-slider::-moz-range-progress {
  background: transparent;
}

.progress-slider::-moz-range-thumb {
  width: var(--slider-thumb-size);
  height: var(--slider-thumb-size);
  border-radius: 50%;
  background: var(--slider-track-empty);
  border: var(--slider-thumb-border) solid var(--slider-fill);
  box-shadow: none;
  cursor: grab;
}

.progress-slider:active::-moz-range-thumb {
  cursor: grabbing;
}

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