/* FAB hỗ trợ — góc dưới phải, theo cuộn */
.gpkm-fab {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 40;
  display: flex;
  flex-direction: column;
  gap: 12px;
  pointer-events: none;
}

.gpkm-fab__nut {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 9999px;
  color: #fff;
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
  transition: transform 150ms ease, box-shadow 150ms ease;
}

.gpkm-fab__nut:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.22);
}

.gpkm-fab__nut:focus-visible {
  outline: 2px solid var(--primary, #ba0036);
  outline-offset: 3px;
}

.gpkm-fab__zalo {
  background: transparent;
  box-shadow: 0 8px 24px rgba(0, 104, 255, 0.28);
  padding: 0;
  overflow: hidden;
}

.gpkm-fab__facebook {
  background: #1877F2;
}

.gpkm-fab__icon {
  display: block;
}

@media (min-width: 768px) {
  .gpkm-fab {
    right: 24px;
    bottom: 24px;
  }
}

/* Tránh đè CTA mua hàng cố định nếu theme sau này thêm thanh bottom */
body.single-product .gpkm-fab,
body.woocommerce-cart .gpkm-fab,
body.woocommerce-checkout .gpkm-fab {
  bottom: max(16px, env(safe-area-inset-bottom, 0px));
}

@media (prefers-reduced-motion: reduce) {
  .gpkm-fab__nut {
    transition: none;
  }
  .gpkm-fab__nut:hover {
    transform: none;
  }
}

.gpkm-fab__icon--zalo {
  width: 52px;
  height: 52px;
  object-fit: cover;
  display: block;
  border-radius: 9999px;
}