session-desktop/stylesheets/_session.scss

@font-face {
  font-family: 'SpaceMono';
  src: url('../fonts/SpaceMono-Regular.ttf') format('truetype');
}
@font-face {
  font-family: 'SpaceMono';
  src: url('../fonts/SpaceMono-Bold.ttf') format('truetype');
  font-weight: bold;
}
@font-face {
  font-family: 'SpaceMono';
  src: url('../fonts/SpaceMono-Italic.ttf') format('truetype');
  font-style: italic;
}
@font-face {
  font-family: 'SpaceMono';
  src: url('../fonts/SpaceMono-BoldItalic.ttf') format('truetype');
  font-weight: bold;
  font-style: italic;
}

$session-font-family: 'SpaceMono';

$session-color-green: #00f782;
$session-color-white: #fff;
$session-color-black: #000;


$session-transition-duration: 0.25s;

$session-icon-size-sm: 16px;
$session-icon-size-md: 20px;
$session-icon-size-lg: 28px;

.session-button {
  min-width: 165px;
  width: auto;
  height: 45px;
  line-height: 45px;
  padding: 0 35px 0 35px;
  font-size: 32px;
  font-family: $session-font-family;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  justify-content: center;
  border-radius: 500px;

  @mixin transparent-background($textAndBorderColor) {
    background-color: Transparent;
    background-repeat: no-repeat;
    overflow: hidden;
    outline: none;
    color: $textAndBorderColor;
    border: 2px solid $textAndBorderColor;
  }

  &.full-green {
    background-color: $session-color-green;
    color: $session-color-white;
  }

  &.green {
    @include transparent-background($session-color-green);
  }

  &.white {
    @include transparent-background($session-color-white);
  }
}

.session-icon-button {
  fill: $session-color-white;
  opacity: 0.4;
  cursor: pointer;
  display: inline-block;
  transition: opacity $session-transition-duration;

  &.small {
    line-height: $session-icon-size-sm;
    height: $session-icon-size-sm;
    width: $session-icon-size-sm;

    margin: $session-icon-size-sm / 3;

    img {
      height: $session-icon-size-sm;
      width: $session-icon-size-sm;
    }
  }

  &.medium {
    line-height: $session-icon-size-md;
    height: $session-icon-size-md;
    width: $session-icon-size-md;

    margin: $session-icon-size-md / 3;

    img {
      height: $session-icon-size-md;
      width: $session-icon-size-md;
    }
  }

  &.large {
    line-height: $session-icon-size-lg;
    height: $session-icon-size-lg;
    width: $session-icon-size-lg;

    margin: $session-icon-size-lg / 3;

    img {
      height: $session-icon-size-lg;
      width: $session-icon-size-lg;
    }
  }

  &:hover {
    opacity: 1;
  }
}