.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #0a5cff, #05c3ff);
  transform-origin: left center;
  transform: scaleX(0);
  z-index: 2000;
  pointer-events: none;
  transition: transform 0.1s ease-out;
}

.fade-in-on-scroll {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.fade-in-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.btn.is-pressed {
  transform: translateY(1px);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.2);
}

.tile.is-hover,
.card.is-hover,
.principle-card.is-hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}