/* TenderFrozen Navigation Styles */
.tf-nav-fab {
  position: fixed;
  bottom: 80px;
  left: 20px;
  width: 60px;
  height: 60px;
  background: #2980b9;
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  z-index: 1500;
  transition: transform 0.3s ease, background 0.3s ease;
}

.tf-nav-fab:hover {
  transform: scale(1.1);
  background: #3498db;
}

.tf-nav-fab.active {
  transform: rotate(45deg);
}

.tf-nav-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.tf-nav-modal.active {
  display: flex;
  opacity: 1;
}

.tf-nav-menu {
  background: #ffffff;
  border-radius: 12px;
  padding: 20px;
  width: 90%;
  max-width: 320px;
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
  transform: translateY(50px);
  transition: transform 0.3s ease;
}

.tf-nav-modal.active .tf-nav-menu {
  transform: translateY(0);
}

.tf-nav-menu h2 {
  font-size: 1.6rem;
  color: #2c3e50;
  margin: 0 0 20px;
  font-weight: 500;
  text-align: center;
}

.tf-nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.tf-nav-item {
  padding: 12px 15px;
  margin: 5px 0;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  color: #2c3e50;
  font-size: 1rem;
  font-weight: 500;
  transition: background 0.2s ease, transform 0.2s ease;
}

.tf-nav-item:hover {
  background: #ecf0f1;
  transform: translateX(5px);
}

.tf-nav-item.active {
  background: #2980b9;
  color: #ffffff;
}

.tf-nav-item i {
  font-size: 1.2rem;
}

/* Toast Notification */
.tf-nav-toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  padding: 12px 20px;
  border-radius: 8px;
  color: #ffffff;
  font-size: 1rem;
  z-index: 2000;
  display: none;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
  max-width: 300px;
  align-items: center;
  gap: 10px;
  font-family: 'Roboto', sans-serif;
}

.tf-nav-toast.success {
  background: #27ae60;
}

.tf-nav-toast.error {
  background: #c0392b;
}

.tf-nav-toast i {
  font-size: 1.2rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .tf-nav-menu {
    width: 80%;
    max-width: 280px;
  }
  
  .tf-nav-fab {
    width: 50px;
    height: 50px;
  }
}