Segmented Slide Toggle

<!--
  Author: @yokkcode
  License: MIT
  Tags: #buttons #css #interface #opensource #codepeek
-->
<div class="segment-toggle" role="tablist">
  <input type="radio" id="seg-month" name="segment" class="segment-toggle__input" checked />
  <label for="seg-month" class="segment-toggle__label">Monthly</label>
  <input type="radio" id="seg-year" name="segment" class="segment-toggle__input" />
  <label for="seg-year" class="segment-toggle__label">Yearly</label>
  <span class="segment-toggle__indicator"></span>
</div>

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

.segment-toggle {
  position: relative;
  display: inline-flex;
  padding: 4px;
  border-radius: 999px;
  background: #18181f;
  border: 1px solid #2a2a33;
  font-family: system-ui, sans-serif;
}
.segment-toggle__input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
.segment-toggle__label {
  position: relative;
  z-index: 1;
  padding: 9px 22px;
  font-size: 13px;
  font-weight: 600;
  color: #8a8a94;
  cursor: pointer;
  border-radius: 999px;
  transition: color 0.3s ease;
}
.segment-toggle__indicator {
  position: absolute;
  top: 4px;
  left: 4px;
  width: calc(50% - 4px);
  height: calc(100% - 8px);
  border-radius: 999px;
  background: linear-gradient(135deg, #818cf8, #6366f1);
  box-shadow: 0 4px 12px -2px rgba(99, 102, 241, 0.6);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
#seg-year:checked ~ .segment-toggle__indicator {
  transform: translateX(100%);
}
#seg-month:checked ~ label[for="seg-month"],
#seg-year:checked ~ label[for="seg-year"] {
  color: #ffffff;
}