/* BACK TO TOP */
#toTop {
  position: fixed;
  right: 32px;
  bottom: 32px;
  z-index: 150;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue);
  cursor: pointer;
  opacity: 0;
  transform: translateY(14px) scale(0.9);
  pointer-events: none;
  transition: opacity 0.35s ease, transform 0.35s cubic-bezier(.22,.61,.36,1), background 0.25s ease;
}
#toTop.show { opacity: 1; transform: translateY(0) scale(1); pointer-events: auto; }
#toTop:hover { background: #DFEBF1; }
#toTop svg { transition: transform 0.25s ease; }
#toTop:hover svg { transform: translateY(-2px); }
@media (max-width: 600px) {
  #toTop { right: 18px; bottom: 18px; width: 42px; height: 42px; }
}