Search to Back

<button class="nuda-icon-search" type="button" aria-label="Search" aria-pressed="false">
  <svg class="nuda-icon-search__svg" viewBox="0 0 24 24" aria-hidden="true">
    <circle   class="nuda-icon-search__lens"   cx="11" cy="11" r="6" />
    <line     class="nuda-icon-search__handle" x1="20" y1="20" x2="15.5" y2="15.5" />
    <polyline class="nuda-icon-search__head"   points="11 7 7 12 11 17" />
  </svg>
</button>

/* Search to Back
   The lens fades out, the handle rotates flat into a shaft, and an arrow head
   draws in via stroke-dashoffset. GPU-only: transform + opacity + dashoffset.
   Customize: --icon-accent */

.nuda-icon-search {
  --icon-accent: #e4ff54;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: #09090b;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  color: #fafafa;
  cursor: pointer;
  transition: border-color 0.25s, color 0.25s;
}

.nuda-icon-search:hover,
.nuda-icon-search:focus-visible {
  border-color: rgba(228, 255, 84, 0.4);
  outline: none;
}

.nuda-icon-search:focus-visible {
  box-shadow: 0 0 0 2px rgba(228, 255, 84, 0.5);
}

.nuda-icon-search[aria-pressed="true"] { color: var(--icon-accent); }

.nuda-icon-search__svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}

.nuda-icon-search__lens {
  transition: transform 0.4s cubic-bezier(0.4, 0.2, 0.2, 1), opacity 0.3s;
  transform-origin: center;
  will-change: transform, opacity;
}

.nuda-icon-search__handle {
  transition: transform 0.4s cubic-bezier(0.4, 0.2, 0.2, 1), opacity 0.3s;
  transform-origin: 11px 11px;
  will-change: transform;
}

.nuda-icon-search__head {
  stroke-dasharray: 18;
  stroke-dashoffset: 18;
  opacity: 0;
  transition: stroke-dashoffset 0.4s, opacity 0.3s;
}

.nuda-icon-search[aria-pressed="true"] .nuda-icon-search__lens {
  opacity: 0;
  transform: scale(0.4);
}

.nuda-icon-search[aria-pressed="true"] .nuda-icon-search__handle {
  transform: rotate(-45deg) scaleX(1.35);
}

.nuda-icon-search[aria-pressed="true"] .nuda-icon-search__head {
  opacity: 1;
  stroke-dashoffset: 0;
  transition-delay: 0.12s;
}

@media (prefers-reduced-motion: reduce) {
  .nuda-icon-search__lens,
  .nuda-icon-search__handle,
  .nuda-icon-search__head { transition: none; }
}

/* Search to Back — vanilla JS
   Flips aria-pressed and label; CSS morphs the glyph. */

(function () {
  document.querySelectorAll(".nuda-icon-search").forEach(function (btn) {
    btn.addEventListener("click", function () {
      var back = btn.getAttribute("aria-pressed") !== "true";
      btn.setAttribute("aria-pressed", String(back));
      btn.setAttribute("aria-label", back ? "Back" : "Search");
    });
  });
})();