@media (max-width: 959px) {
  .navigation-progress {
    position: fixed;
    z-index: 2147483647;
    top: 0;
    right: 0;
    left: 0;
    height: 2px;
    overflow: hidden;
    background: rgba(var(--color-button-text), 0.16);
    opacity: 0;
    pointer-events: none;
    transition: opacity 160ms ease;
  }

  .navigation-progress.is-active {
    opacity: 1;
  }

  .navigation-progress__bar {
    width: 100%;
    height: 100%;
    background-color: rgb(var(--color-button-background));
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 260ms ease-out;
    will-change: transform;
  }

  .navigation-progress.is-flowing .navigation-progress__bar {
    background-image: linear-gradient(
      90deg,
      transparent 0%,
      rgba(var(--color-button-text), 0.35) 50%,
      transparent 100%
    );
    background-size: 80px 100%;
    background-repeat: no-repeat;
    animation: navigation-progress-flow 900ms linear infinite;
  }
}

@keyframes navigation-progress-flow {
  from {
    background-position: -80px 0;
  }
  to {
    background-position: calc(100vw + 80px) 0;
  }
}

@media (max-width: 959px) and (prefers-reduced-motion: reduce) {
  .navigation-progress,
  .navigation-progress__bar {
    transition-duration: 1ms;
  }

  .navigation-progress.is-flowing .navigation-progress__bar {
    animation: none;
    background-image: none;
  }
}