/* Scroll hint (mobile): shows only if page can scroll */
#scroll-hint {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: calc(88px + env(safe-area-inset-bottom));
  z-index: 999;
  pointer-events: none;
  width: 40px;
  height: 40px;
  border-radius: 9999px;
  background: rgba(15, 23, 42, 0.55);
  color: white;
  display: none;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

#scroll-hint .material-symbols-outlined {
  font-size: 22px;
  line-height: 1;
  animation: scrollHintBounce 1.1s ease-in-out infinite;
}

@keyframes scrollHintBounce {
  0%,
  100% {
    transform: translateY(0);
    opacity: 0.9;
  }
  50% {
    transform: translateY(6px);
    opacity: 1;
  }
}