.fab {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, #3b82f6, #6366f1);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow:
    0 4px 16px rgba(59, 130, 246, 0.4),
    0 0 30px rgba(59, 130, 246, 0.15);
  transition: all 0.25s ease;
  z-index: 100;
}

.fab:hover {
  transform: scale(1.08);
  box-shadow:
    0 6px 24px rgba(59, 130, 246, 0.5),
    0 0 40px rgba(59, 130, 246, 0.25);
}

.fab:active {
  transform: scale(0.95);
}
