/* ============================================================
   BACK TO TOP
   ============================================================ */
.cp-back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 500;
  width: 44px;
  height: 44px;
  background: var(--cp-color-secondary, #EB7630);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: .95rem;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(0,0,0,.15);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity .3s ease, visibility .3s ease, transform .3s ease, box-shadow .3s ease;
  border: none;
}
.cp-back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.cp-back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,.2);
}