.font-switcher-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: none;
  background: transparent;
  color: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  user-select: none;
  transition: background 0.15s, transform 0.1s;
  flex-shrink: 0;
}

.font-switcher-btn:hover {
  background: rgba(16, 32, 64, 0.07);
}

.font-switcher-btn:active {
  background: rgba(16, 32, 64, 0.12);
  transform: scale(0.92);
}

/* Toast notification */
.font-switcher-toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  background: #102040;
  color: #fff;
  font-size: 0.85rem;
  font-family: inherit;
  padding: 8px 18px;
  border-radius: 999px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  z-index: 999;
  white-space: nowrap;
}

.font-switcher-toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}