/* Sticky Contact Buttons */
.sticky-contact-buttons {
  position: fixed;
  right: 20px;
  bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 9999;
}

.contact-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  color: white;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
  outline: none;
  font-family: 'Quicksand', sans-serif;
}

.contact-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.contact-btn:active {
  transform: translateY(0);
}

.contact-btn-question {
  background: linear-gradient(135deg, #9333ea 0%, #7c3aed 100%);
}

.contact-btn-question:hover {
  background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%);
}

.contact-btn-scroll-top {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.contact-btn-scroll-top:hover {
  background: linear-gradient(135deg, #059669 0%, #047857 100%);
}

.contact-btn-zalo {
  background: linear-gradient(135deg, #0068FF 0%, #0052CC 100%);
}

.contact-btn-zalo:hover {
  background: linear-gradient(135deg, #0052CC 0%, #0041A8 100%);
}

.contact-btn svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

/* Responsive */
@media (max-width: 768px) {
  .sticky-contact-buttons {
    right: 12px;
    bottom: 120px;
    gap: 8px;
  }
  
  .contact-btn span {
    display: none;
  }
  
  .contact-btn {
    padding: 8px;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    justify-content: center;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.15);
  }
  
  .contact-btn svg {
    width: 18px;
    height: 18px;
  }
}

@media (max-width: 480px) {
  .sticky-contact-buttons {
    right: 10px;
    bottom: 110px;
    gap: 6px;
  }
  
  .contact-btn {
    padding: 7px;
    width: 36px;
    height: 36px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
  }
  
  .contact-btn svg {
    width: 16px;
    height: 16px;
  }
}