/* --------------------------------------------------------------------------
   12. FLOATING ACTION PANEL (FAB)
   -------------------------------------------------------------------------- */
.floating-action-buttons {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 99;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 16px;
}

.fab-list {
  position: absolute;
  bottom: 74px;
  right: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.8);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  transform-origin: bottom right;
}

.fab-list.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.fab-main-trigger {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  border: 3px solid var(--white);
  background-color: var(--primary);
  color: var(--white);
  box-shadow: 0 8px 32px rgba(0, 102, 68, 0.25);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.fab-main-trigger:hover {
  transform: scale(1.06) rotate(5deg);
  background-color: var(--primary-hover);
}

.fab-main-trigger .close-icon {
  display: none;
}

.fab-main-trigger.active {
  background-color: var(--primary-hover);
  color: var(--white);
  transform: rotate(90deg);
  box-shadow: 0 8px 32px var(--primary-glow);
}

.fab-main-trigger.active:hover {
  background-color: var(--ink);
  color: var(--white);
  transform: scale(1.06) rotate(90deg);
}

.fab-main-trigger.active .open-icon {
  display: none;
}

.fab-main-trigger.active .close-icon {
  display: block;
}

.fab-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--white);
  padding: 12px 22px;
  border-radius: var(--radius-full);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
  font-weight: 600;
  font-size: 0.9rem;
}

.fab-btn:hover {
  transform: translateX(-4px) scale(1.02);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
  color: var(--white);
}

.messenger-btn {
  background: linear-gradient(135deg, #0084ff 0%, #0066cc 100%);
}

.zalo-btn {
  background: linear-gradient(135deg, #0068ff 0%, #0054cc 100%);
}

.zalo-text {
  font-family: Arial, sans-serif;
  font-weight: 800;
  font-size: 0.75rem;
  letter-spacing: -0.5px;
  background-color: var(--white);
  color: #0068ff;
  padding: 2px 6px;
  border-radius: 5px;
  line-height: 1;
}

.fab-notification {
  background-color: var(--white);
  border-radius: 18px 18px 4px 18px;
  padding: 14px 18px;
  box-shadow: 0 10px 40px rgba(0, 102, 68, 0.1);
  border: 1px solid rgba(0, 102, 68, 0.04);
  width: 280px;
  position: absolute;
  bottom: 74px; /* 58px button height + 16px gap */
  right: 0;
  opacity: 0;
  animation: fab-pop 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275) 2.5s both;
  transform-origin: bottom right;
  z-index: 10;
}

.fab-notification::after {
  content: '';
  position: absolute;
  bottom: -6px;
  right: 23px; /* Center-aligned with the 58px trigger button (58/2 - 12/2 = 23px) */
  width: 12px;
  height: 12px;
  background-color: var(--white);
  transform: rotate(45deg);
  border-right: 1px solid rgba(0, 102, 68, 0.04);
  border-bottom: 1px solid rgba(0, 102, 68, 0.04);
}

.notif-close {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 20px;
  height: 20px;
  background-color: var(--light-gray);
  color: var(--text-muted);
  border-radius: 50%;
  font-size: 0.7rem;
}

.notif-close:hover {
  background-color: var(--border-color);
  color: var(--ink);
}

@keyframes fab-pop {
  0% { transform: scale(0.5); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

@media (max-width: 576px) {
  .floating-action-buttons {
    right: 16px;
    bottom: 16px;
  }

  .fab-notification {
    display: none;
  }

  .fab-text { display: none; }
  .fab-btn {
    width: 48px;
    height: 48px;
    padding: 0;
    justify-content: center;
    border-radius: 50%;
  }
}