TelegramPWA/src/components/mediaViewer/VideoPlayerControls.scss

.VideoPlayerControls {
  display: flex;
  align-items: center;
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  padding: 2rem 0.5rem 0.5rem;
  font-size: 0.875rem;
  background: linear-gradient(to top, #000 0%, rgba(0, 0, 0, 0) 100%);
  transition: opacity 0.3s;
  z-index: var(--z-video-player-controls);

  opacity: 0;
  pointer-events: none;

  #MediaViewer.zoomed & {
    display: none;
  }

  @media (max-width: 600px) {
    position: fixed;
    padding: 2.25rem 0.5rem 0.75rem;
    background: none;
  }

  &.active {
    opacity: 1;
    pointer-events: auto;
  }

  .buttons {
    display: flex;
    align-items: center;
    width: 100%;
  }

  .spacer {
    flex-grow: 1;
  }

  .Button.round {
    width: 2rem;
    padding: 0;
    margin: 0.25rem;
    height: 2rem;
  }

  .volume-slider {
    margin-bottom: 0;
    margin-left: -0.75rem;
    padding: 0.5rem 0.5rem 0.5rem 0.5rem;
    width: 0;

    --volume-slider-width: 4rem;
    --slider-color: #fff;
    --color-borders: rgba(255, 255, 255, 0.5);
    /* stylelint-disable-next-line plugin/no-low-performance-animation-properties */
    transition: width 0.2s ease-in-out;

    &:hover{
      overflow: hidden;
      width: var(--volume-slider-width);
      .RangeSlider__input {
        opacity: 1;
      }
    }

    .RangeSlider__input {
      margin-bottom: 0;
      opacity: 0;
      transition: opacity 0.15s ease-in-out;
    }
  }

  .volume:hover + .volume-slider {
    overflow: hidden;
    width: var(--volume-slider-width);
    .RangeSlider__input {
      opacity: 1;
    }
  }

  .player-time {
    white-space: nowrap;
  }

  .player-file-size {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-left: 0.5rem;
  }

  .player-seekline {
    position: absolute;
    left: 1rem;
    right: 1rem;
    top: 1rem;
    height: 1rem;
    touch-action: none;
    cursor: pointer;

    @media (max-width: 600px) {
      top: 1rem;
    }

    &-track {
      position: absolute;
      top: 50%;
      left: -0.25rem;
      right: -0.25rem;
      height: 5px;
      transform: translateY(-50%);
      background-color: rgba(255, 255, 255, 0.16);
      border-radius: var(--border-radius-default);
    }

    &-buffered,
    &-played,
    &-input {
      position: absolute;
      top: 0;
      left: 0;
      height: 100%;
      border-radius: var(--border-radius-default);
    }

    &-buffered {
      position: absolute;
      background-color: rgba(255, 255, 255, 0.5);
    }

    &-played {
      background: var(--color-primary);

      &::after {
        content: "";
        position: absolute;
        width: 0.75rem;
        height: 0.75rem;
        border-radius: 50%;
        background-color: var(--color-primary);
        right: 0;
        top: 50%;
        transform: translate(0.325rem, -50%);
      }
    }
  }

  .playback-rate-menu {
    .bubble {
      min-width: 3.5rem;
      margin-right: 3.5rem;
      bottom: 4.1875rem
    }
    &.no-fullscreen {
      .bubble {
        margin-right: 0.8125rem;
      }
    }
  }
}