<label class="tg-knob">
  <input class="tg-knob-input" type="checkbox" checked>
  <span class="tg-knob-stage" aria-hidden="true">
    <span class="tg-knob-tick tg-knob-t-off">OFF</span>
    <span class="tg-knob-tick tg-knob-t-on">ON</span>
    <span class="tg-knob-dial">
      <span class="tg-knob-indicator"></span>
    </span>
  </span>
  <span class="tg-knob-label">Power</span>
</label>

.tg-knob {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: #d8d4dc;
  user-select: none;
}
.tg-knob-input {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}
.tg-knob-stage {
  position: relative;
  width: 60px;
  height: 60px;
}
.tg-knob-tick {
  position: absolute;
  font-family: ui-monospace, "Fira Code", monospace;
  font-size: 8px;
  letter-spacing: 0.1em;
  color: #6a6a7a;
}
.tg-knob-t-off { top: 4px;  left: 0; }
.tg-knob-t-on  { top: 4px;  right: 0; }
.tg-knob-dial {
  position: absolute;
  top: 12px; left: 6px;
  width: 48px; height: 48px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 30%, #f0e8d8 0%, #6a5a30 90%);
  box-shadow:
    inset 0 1px 1px rgba(255,255,255,0.4),
    inset 0 -2px 4px rgba(0,0,0,0.3),
    0 2px 6px rgba(0,0,0,0.4);
  transform: rotate(-45deg);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.tg-knob-indicator {
  position: absolute;
  top: 4px; left: 50%;
  width: 3px; height: 14px;
  background: #2a1d0e;
  border-radius: 2px;
  transform: translateX(-50%);
}
.tg-knob-input:checked ~ .tg-knob-stage .tg-knob-dial {
  transform: rotate(45deg);
}
.tg-knob-input:checked ~ .tg-knob-stage .tg-knob-t-on { color: #d8b66e; }
.tg-knob-input:not(:checked) ~ .tg-knob-stage .tg-knob-t-off { color: #d8b66e; }
.tg-knob-input:focus-visible ~ .tg-knob-stage .tg-knob-dial {
  outline: 2px solid #d8b66e;
  outline-offset: 4px;
}
@media (prefers-reduced-motion: reduce) {
  .tg-knob-dial { transition: none; }
}