/* =========================
   SCROLL TO TOP BUTTON
========================= */
#scrollTopBtn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: #facc15;
  color: #0f172a;
  font-size: 20px;
  font-weight: bold;
  cursor: pointer;
  display: none;
  z-index: 999;
  box-shadow: 0 10px 25px rgba(0,0,0,0.2);
  transition: all 0.3s ease;
}

#scrollTopBtn:hover {
  background: #fde047;
  transform: translateY(-4px);
}