.trigger-slider {
  -webkit-appearance: none;
  -moz-appearance: none;
  height: 1.25rem;
  background: linear-gradient(to right,
    red 0%,
    red 9%,
    green 15%,
    green 30%,
    orange 50%,
    orange 100%);
  border-radius: 1rem;
  outline: none;
  appearance: none;
  border: none;
  cursor: pointer;
  transition: background 0.3s ease;
}

.trigger-slider::-webkit-slider-thumb {
  background-color: #000;
  border: 2px solid #fff;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  cursor: pointer;
  -webkit-appearance: none;
}

.trigger-slider::-moz-range-thumb {
  background-color: #000;
  border: 2px solid #fff;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  cursor: pointer;
}

/* Hide gray track in WebKit */
.trigger-slider::-webkit-slider-runnable-track {
  background: transparent;
  height: 1.25rem;
  border-radius: 1rem;
}

/* Hide gray track in Firefox */
.trigger-slider::-moz-range-track {
  background: transparent;
  height: 1.25rem;
  border-radius: 1rem;
}

/* Custom thumb styling */
.trigger-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  background-color: black;
  border: 2px solid white;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  margin-top: 0px; /* vertically center the thumb */
}

.trigger-slider::-moz-range-thumb {
  background-color: black;
  border: 2px solid white;
  width: 18px;
  height: 18px;
  border-radius: 50%;
}