.gravity-well {
  position: absolute;
  inset: 0;
  margin: 0;
  overflow: hidden;
  cursor: default;
}

.gravity-well__canvas {
  display: block;
  width: 100%;
  height: 100%;
}

/* Mobile hint — tappable on iOS for gyro permission */
.gravity-well__hint {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  font-family: 'Courier New', Courier, monospace;
  font-size: clamp(0.65rem, 0.5rem + 0.3vw, 0.8rem);
  color: var(--color-text);
  opacity: 0;
  pointer-events: none;
  user-select: none;
  letter-spacing: 0.15em;
  text-transform: lowercase;
  transition: opacity 0.8s ease;
}

.gravity-well__hint.is-visible {
  opacity: 1;
}

/* Reset bar — below split-flap grid */
.gravity-well__reset-bar {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  pointer-events: auto;
}

.gravity-well__reset-line {
  flex: 1;
  height: 1px;
  background: rgba(var(--color-text-rgb), 0.75);
}

.gravity-well__bar-btn {
  background: none;
  border: none;
  font-family: 'Courier New', Courier, monospace;
  font-size: clamp(0.6rem, 0.5rem + 0.2vw, 0.7rem);
  font-weight: 600;
  color: rgba(var(--color-text-rgb), 0.75);
  cursor: pointer;
  padding: 4px 0;
  letter-spacing: 0.1em;
  white-space: nowrap;
  transition: color 0.2s ease;
}

.gravity-well__bar-btn:hover {
  color: var(--color-text);
}