.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: rgba(255,255,255,0.08);
  z-index: 9999;
}

.reading-progress__bar {
  width: 0%;
  height: 100%;
  background: #faaf3b;
  transition: width 0.1s linear;
}

/* Demo article styling */
.demo-article {
  max-width: 720px;
  margin: 120px auto;
  padding: 0 24px;
  line-height: 1.7;
}

.demo-article h1 {
  margin-bottom: 40px;
}

.demo-article h2 {
  margin-top: 64px;
}