//
// Progress Bars
// =============================================================================
// Courtesy of Chris Coyier (http://css-tricks.com/css3-progress-bars/)

.progress-bar {
  background-color: getColor(background, light);
  border-radius: 3px;
  box-shadow: inset 0 1px 1px rgba(getColor(base, lines), .25);
  box-sizing: initial;
  color: getColor(text, inverted);
  font-size: typeScale(1);
  height: 0.5lh;
  line-height: 1.2;
  position: relative;
  text-align: center;
  width: 100%;

  & > .progress {
    background-color: getColor(base, primary);
    border-radius: 3px;
    box-shadow: inset 0 -1px 0 rgba(0, 0, 0, .15);
    display: block;
    height: 100%;
    overflow: hidden;
    position: relative;
  }

  //
  // Striped variant
  // --------------------------------------------------

  &.-striped {
    & > .progress {
      &:after {
        background-image: linear-gradient(-45deg,
            rgba(255, 255, 255, .2) 25%, transparent 25%, transparent 50%,
            rgba(255, 255, 255, .2) 50%,
            rgba(255, 255, 255, .2) 75%, transparent 75%, transparent);
        background-size: 50px 50px;
        background-repeat: repeat;
        bottom: 0;
        content: "";
        left: 0;
        overflow: hidden;
        position: absolute;
        right: 0;
        top: 0;
        z-index: 1;
      }
    }

    // Animated
    &.-animated > .progress {
      &:after { animation: move 2s linear infinite; }
    }
  }

  //
  // Small variant
  // --------------------------------------------------

  &.-small {
    font-size: typeScale(1);
    height: 10px;
    line-height: 1.2;
  }

  //
  // Large variant
  // --------------------------------------------------

  &.-large {
    font-size: typeScale(2);
    height: 25px;
    line-height: 1.7;
  }

  //
  // Stacked variant
  // --------------------------------------------------

  &.-stacked {
    & > .progress {
      border-radius: 0;
      display: block;
      float: left;

      &:first-of-type { border-radius: 3px 0 0 3px; }

      &:last-of-type { border-radius: 0 3px 3px 0; }
    }
  }
}

//
// "Move" animation
// --------------------------------------------------

@keyframes move {
  0% { background-position: 0 0; }

  100% { background-position: 50px 50px; }
}

@-moz-keyframes move {
  0% { background-position: 0 0; }

  100% { background-position: 50px 50px; }
}

@-webkit-keyframes move {
  0% { background-position: 0 0; }

  100% { background-position: 50px 50px; }
}