.ba-container {
  position: relative;
  width: 40%;
  max-width: 600px;
  aspect-ratio: 1 / 1.414;
  overflow: hidden;
  margin: auto;
  user-select: none;
}

.ba-img {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}

.ba-img-after {
  clip-path: inset(0 0 0 50%);
  z-index: 2;
}

/* Barre verticale */
.ba-handle {
  position: absolute;
  top: 0;
  left: 50%;
  width: 8px;
  height: 100%;
  background: var(--primary-color);
  cursor: ew-resize;
  z-index: 5;
}

/* Flèches */
.ba-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 18px;
  color: #000;
  background: rgba(255, 255, 255, 0.7);
  padding: 4px;
  border-radius: 4px;
  z-index: 6;
  pointer-events: none;
}
.ba-arrow-left {
  left: calc(50% - 20px);
}
.ba-arrow-right {
  left: calc(50% + 6px);
}

/* Labels */
.ba-label {
  position: absolute;
  bottom: 10px;
  color: white;
  font-weight: bold;
  background: rgba(0,0,0,0.4);
  padding: 4px 8px;
  font-size: 14px;
  z-index: 10;
}
.ba-label-before {
  left: 10px;
}
.ba-label-after {
  right: 10px;
}