/* Layout chung */
.aplus-social-floating {
  position: fixed;
 bottom: 100px;
    right: 20px;
  z-index: 99999;
}

.aplus-social-floating .aplus-social-icons {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* Icon mặc định (FB / YouTube) */
.aplus-social-floating img {
  width: 42px;
  height: 42px;
  cursor: pointer;
  transition: transform 0.25s ease;
}

/* Hover chung */
.aplus-social-floating img:hover {
  transform: scale(1.08);
}

/* =========================
   ZALO RIPPLE BUTTON
   ========================= */

.aplus-zalo-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Vùng tròn chứa icon Zalo */
.aplus-zalo-pulse {
  position: relative;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #007bff; /* xanh Zalo */
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 0 4px rgba(0, 123, 255, 0.35);
  overflow: visible;
}

/* Icon Zalo bên trong nhỏ hơn xíu */
.aplus-zalo-pulse img {
  width: 30px;
  height: 30px;
  z-index: 2;
}

/* Hai vòng sáng lan tỏa */
.aplus-zalo-pulse::before,
.aplus-zalo-pulse::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid rgba(0, 123, 255, 0.5);
  background: rgba(0, 153, 255, 0.25);
  z-index: 1;
  transform: scale(1);
  opacity: 0;
  animation: zaloRipple 1.8s ease-out infinite;
}

/* Vòng thứ 2 lệch nhịp cho đẹp hơn */
.aplus-zalo-pulse::after {
  animation-delay: 0.6s;
}

/* Keyframes lan tỏa → mờ dần */
@keyframes zaloRipple {
  0% {
    transform: scale(1);
    opacity: 0.8;
  }
  60% {
    transform: scale(1.9);
    opacity: 0;
  }
  100% {
    transform: scale(1.9);
    opacity: 0;
  }
}

/* Responsive một chút */
@media (max-width: 768px) {
  .aplus-social-floating {
    bottom: 16px;
    right: 16px;
  }
  .aplus-zalo-pulse {
    width: 50px;
    height: 50px;
  }
  .aplus-zalo-pulse img {
    width: 26px;
    height: 26px;
  }
}