.font-tool-container {
  --fs-thumb-size: 32px;
  width: 100%;
  margin: 20px 0;
  padding: 16px 20px;
  background: #f8f9fa;
  border-radius: 8px;
  box-sizing: border-box;
}

.font-tool-container * {
  box-sizing: border-box;
}

.font-tool__row {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
}

.font-tool__label {
  font-size: 16px;
  font-weight: 700;
  white-space: nowrap;
  color: #1f2937;
  margin: 0;
}

.font-tool__min,
.font-tool__max {
  font-size: 14px;
  font-weight: 600;
  color: #374151;
  white-space: nowrap;
}

.font-tool__range-wrap {
  position: relative;
  flex: 1 1 auto;
  min-width: 120px;
}

.font-tool__range {
  display: block;
  width: 100%;
  height: 8px;
  margin: 0;
  padding: 0;
  background: transparent;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}

.font-tool__range:focus {
  outline: none;
}

.font-tool__range::-webkit-slider-runnable-track {
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(
    to right,
    var(--fs-control-color) 0%,
    var(--fs-control-color) var(--range-percent, 37.5%),
    #e5e7eb var(--range-percent, 37.5%),
    #e5e7eb 100%
  );
}

.font-tool__range::-webkit-slider-thumb {
  width: var(--fs-thumb-size);
  height: var(--fs-thumb-size);
  margin-top: calc((8px - var(--fs-thumb-size)) / 2);
  border: 4px solid var(--fs-control-color-soft);
  border-radius: 50%;
  background: #ffffff;
  box-shadow: inset 0 0 0 3px var(--fs-control-color), 0 2px 4px rgba(15, 23, 42, 0.1);
  -webkit-appearance: none;
  appearance: none;
}

.font-tool__range::-moz-range-track {
  height: 8px;
  border-radius: 999px;
  background: #e5e7eb;
}

.font-tool__range::-moz-range-progress {
  height: 8px;
  border-radius: 999px;
  background: var(--fs-control-color);
}

.font-tool__range::-moz-range-thumb {
  width: var(--fs-thumb-size);
  height: var(--fs-thumb-size);
  border: 4px solid var(--fs-control-color-soft);
  border-radius: 50%;
  background: #ffffff;
  box-shadow: inset 0 0 0 3px var(--fs-control-color), 0 2px 4px rgba(15, 23, 42, 0.1);
}

@media (max-width: 720px) {
  .font-tool-container {
    --fs-thumb-size: 28px;
    padding: 12px 16px;
  }
  .font-tool__row {
    gap: 10px;
  }
  .font-tool__label {
    font-size: 14px;
  }
}