/* ===============================
   Tabs (Novicoins style)
   =============================== */
.shop-tabs {
  display: flex;
  gap: 14px;
  margin: 24px 0;
  border-bottom: 2px solid #e5e7eb; /* светлый серый */
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 4px;
}

.shop-tabs .tab-btn {
  flex: 0 0 auto;
  background: none;
  border: none;
  padding: 10px 16px;
  font-size: 15px;
  cursor: pointer;
  color: #6b7280; /* серый текст */
  border-bottom: 3px solid transparent;
  transition: color 0.25s ease, border-bottom-color 0.25s ease;
  font-weight: 500;
}

.shop-tabs .tab-btn:hover {
  color: #4a3c8c;
}

.shop-tabs .tab-btn.active {
  color: #6E2CA0;
  font-weight: 600;
  border-bottom-color: #6E2CA0;
}

.shop-tab-content .tab-panel {
  display: none;
  animation: fadeIn 0.3s ease;
}

.shop-tab-content .tab-panel.active {
  display: block;
}

/* плавное появление */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}