.ba-wrapper {
  --position: 50%;
  font-family: system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  position: relative;
  width: 100%;
  max-width: 700px;
  margin: 0 auto;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}
.ba-image-container {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 62.5%; /* Aspect Ratio */
}
.ba-img-base {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.ba-img-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: var(--position);
  height: 100%;
  overflow: hidden;
  border-right: 2px solid #fff;
}
.ba-img-top {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  object-fit: cover;
  width: 100vw; /* Ensure image does not squish */
  max-width: 700px; /* Match container max-width */
}
.ba-range {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: ew-resize;
  z-index: 20;
  margin: 0;
}
.ba-handle {
  position: absolute;
  top: 50%;
  left: var(--position);
  transform: translate(-50%, -50%);
  width: 44px;
  height: 44px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #1f2937;
  pointer-events: none;
}

const wrapper = document.getElementById("baWrapper");
const range = wrapper.querySelector(".ba-range");

range.addEventListener("input", function() {
  wrapper.style.setProperty("--position", `${this.value}%`);
});