/* Expand Button Styles */
.expand-btn {
  position: absolute;
  /* Default Position (Circular Mode): Top Center to avoid clipping */
  top: 1.2rem;
  left: 50%;
  transform: translateX(-50%);
  right: auto;
  
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4); /* Increased opacity for visibility */
  border: 1px solid rgba(0, 0, 0, 0.15);
  color: #333;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 20; /* Ensure it's above everything */
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  opacity: 0.8;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.expand-btn:hover {
  background: rgba(255, 255, 255, 0.8);
  opacity: 1;
  transform: translateX(-50%) scale(1.1);
}