Day Night Toggle

<!--
  Author: @yokkcode
  License: MIT
  Tags: #buttons #css #interface #opensource #codepeek
-->
<label class="daynight-toggle">
  <input type="checkbox" class="daynight-toggle__input" />
  <span class="daynight-toggle__track">
    <span class="daynight-toggle__stars"></span>
    <span class="daynight-toggle__knob"></span>
  </span>
</label>

/*
 * Author: @yokkcode
 * License: MIT
 * Tags: #buttons #css #interface #opensource #codepeek
 */

.daynight-toggle {
  display: inline-block;
  cursor: pointer;
}
.daynight-toggle__input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
.daynight-toggle__track {
  position: relative;
  display: block;
  width: 68px;
  height: 34px;
  border-radius: 999px;
  background: linear-gradient(180deg, #7dd3fc, #38bdf8);
  overflow: hidden;
  transition: background 0.5s ease;
}
.daynight-toggle__knob {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #fde68a;
  box-shadow: 0 0 12px 2px rgba(253, 230, 138, 0.8);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.4s ease, box-shadow 0.4s ease;
}
.daynight-toggle__stars {
  position: absolute;
  inset: 0;
  opacity: 0;
  background-image: radial-gradient(1.5px 1.5px at 20% 30%, #fff 100%, transparent),
    radial-gradient(1.5px 1.5px at 40% 70%, #fff 100%, transparent),
    radial-gradient(1.5px 1.5px at 60% 20%, #fff 100%, transparent);
  transition: opacity 0.4s ease;
}
.daynight-toggle__input:checked ~ .daynight-toggle__track {
  background: linear-gradient(180deg, #0f172a, #1e293b);
}
.daynight-toggle__input:checked ~ .daynight-toggle__track .daynight-toggle__knob {
  transform: translateX(34px);
  background: #e2e8f0;
  box-shadow: inset -4px -2px 0 0 #94a3b8, 0 0 8px rgba(226, 232, 240, 0.5);
}
.daynight-toggle__input:checked ~ .daynight-toggle__track .daynight-toggle__stars {
  opacity: 1;
}