:root {
  --tg-theme-bg-color: #ffffff;
  --tg-theme-text-color: #1a1a1a;
  --tg-theme-hint-color: #999999;
  --tg-theme-link-color: #2481cc;
  --tg-theme-button-color: #3390ec;
  --tg-theme-button-text-color: #ffffff;
  --tg-theme-secondary-bg-color: #f4f4f5;
  --tg-theme-danger-color: #ff3b30;
  --tg-theme-success-color: #34c759;
  --tg-theme-warning-color: #ff9500;
  --border-radius: 16px;
  --border-radius-sm: 12px;
  --border-radius-lg: 20px;
  --shadow: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-hover: 0 8px 24px rgba(0,0,0,0.12);
  --shadow-inner: inset 0 2px 4px rgba(0,0,0,0.06);
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow: 0.4s ease;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: linear-gradient(180deg, var(--tg-theme-bg-color) 0%, var(--tg-theme-secondary-bg-color) 100%);
  color: var(--tg-theme-text-color);
  padding-bottom: 80px;
  line-height: 1.6;
  min-height: 100vh;
}

#app {
  max-width: 500px;
  margin: 0 auto;
}

/* Навигация */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid rgba(0,0,0,0.08);
  padding: 10px 0 14px 0;
  z-index: 100;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.08);
}

.nav-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--tg-theme-hint-color);
  font-size: 11px;
  cursor: pointer;
  position: relative;
  padding: 6px 0;
  transition: all var(--transition-normal);
}

.nav-btn:hover {
  color: var(--tg-theme-button-color);
  transform: translateY(-2px);
}

.nav-btn:active {
  transform: scale(0.95);
}

.nav-btn.active {
  color: var(--tg-theme-button-color);
}

.nav-btn.active .nav-icon {
  transform: scale(1.15);
  filter: drop-shadow(0 2px 4px rgba(51, 144, 236, 0.4));
}

.nav-icon {
  font-size: 24px;
  margin-bottom: 3px;
  transition: all var(--transition-normal);
}

.nav-badge {
  position: absolute;
  top: 4px;
  right: 50%;
  transform: translateX(18px);
  background: linear-gradient(135deg, #ff3b30, #ff6b6b);
  color: white;
  font-size: 10px;
  padding: 3px 7px;
  border-radius: 12px;
  font-weight: 700;
  min-width: 20px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(255, 59, 48, 0.4);
  animation: badgePulse 2s infinite;
}

@keyframes badgePulse {
  0%, 100% { transform: translateX(18px) scale(1); }
  50% { transform: translateX(18px) scale(1.05); }
}

/* Страницы */
.page {
  display: none;
  padding: 20px 16px;
  animation: pageSlideIn 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes pageSlideIn {
  from { 
    opacity: 0; 
    transform: translateY(12px);
  }
  to { 
    opacity: 1; 
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.page.active {
  display: block;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.page-header h1 {
  font-size: 26px;
  font-weight: 700;
  margin: 0;
  background: linear-gradient(135deg, var(--tg-theme-text-color) 0%, #666 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Поиск */
.search-box {
  margin-bottom: 16px;
}

.search-box input {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid transparent;
  border-radius: var(--border-radius-lg);
  font-size: 16px;
  background: var(--tg-theme-secondary-bg-color);
  color: var(--tg-theme-text-color);
  outline: none;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-inner);
}

.search-box input:focus {
  border-color: var(--tg-theme-button-color);
  background: var(--tg-theme-bg-color);
  box-shadow: 0 4px 16px rgba(51, 144, 236, 0.15);
  transform: translateY(-1px);
}

.search-box input::placeholder {
  color: var(--tg-theme-hint-color);
}

/* Фильтры */
.catalog-filters {
  margin-bottom: 16px;
}

.catalog-filters select {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid transparent;
  border-radius: var(--border-radius-lg);
  font-size: 15px;
  background: var(--tg-theme-bg-color);
  color: var(--tg-theme-text-color);
  outline: none;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow);
  cursor: pointer;
}

.catalog-filters select:focus {
  border-color: var(--tg-theme-button-color);
  box-shadow: 0 4px 16px rgba(51, 144, 236, 0.15);
}

/* Кнопки */
.primary-btn {
  background: linear-gradient(135deg, var(--tg-theme-button-color) 0%, #2678d4 100%);
  color: var(--tg-theme-button-text-color);
  border: none;
  padding: 14px 24px;
  border-radius: var(--border-radius-lg);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  white-space: nowrap;
  box-shadow: 0 4px 14px rgba(51, 144, 236, 0.35);
  position: relative;
  overflow: hidden;
}

.primary-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

.primary-btn:hover::before {
  left: 100%;
}

.primary-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(51, 144, 236, 0.45);
}

.primary-btn:active {
  transform: translateY(0) scale(0.98);
  box-shadow: 0 2px 10px rgba(51, 144, 236, 0.3);
}

.primary-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.secondary-btn {
  background: var(--tg-theme-secondary-bg-color);
  color: var(--tg-theme-text-color);
  border: none;
  padding: 14px 24px;
  border-radius: var(--border-radius-lg);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow);
}

.secondary-btn:hover {
  background: #e8e8e9;
  transform: translateY(-1px);
  box-shadow: var(--shadow-hover);
}

.secondary-btn:active {
  transform: translateY(0) scale(0.98);
  background: #d8d8d9;
}

/* Сканер */
.scan-container {
  text-align: center;
}

.scanner-container {
  background: #000;
  border-radius: var(--border-radius-lg);
  padding: 16px;
  margin-bottom: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-hover);
}

.qr-reader {
  width: 100%;
  min-height: 300px;
  background: #000;
  border-radius: var(--border-radius);
  overflow: hidden;
}

.qr-reader video {
  width: 100% !important;
  height: auto !important;
  border-radius: var(--border-radius);
}

.scanner-controls {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 16px;
}

.scanner-control-btn {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.2);
  color: white;
  font-size: 22px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  backdrop-filter: blur(10px);
}

.scanner-control-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.1);
}

.scanner-control-btn:active {
  transform: scale(0.95);
}

.scan-button {
  width: 100%;
  padding: 56px 20px;
  background: linear-gradient(135deg, #3390ec 0%, #2678d4 50%, #1a64b8 100%);
  color: white;
  border: none;
  border-radius: var(--border-radius-lg);
  font-size: 19px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  box-shadow: 0 8px 24px rgba(51, 144, 236, 0.35);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.scan-button::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.scan-button:hover::before {
  opacity: 1;
}

.scan-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(51, 144, 236, 0.45);
}

.scan-button:active {
  transform: translateY(-1px) scale(0.98);
  box-shadow: 0 4px 16px rgba(51, 144, 236, 0.3);
}

.scan-icon {
  font-size: 64px;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.2));
}

.scan-help {
  margin-top: 36px;
  color: var(--tg-theme-hint-color);
  font-size: 14px;
  line-height: 1.7;
}

.scan-help p {
  margin-bottom: 6px;
}

.scan-result {
  margin-top: 24px;
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.equipment-card {
  background: linear-gradient(135deg, var(--tg-theme-secondary-bg-color) 0%, #e9e9ea 100%);
  padding: 24px;
  border-radius: var(--border-radius-lg);
  text-align: left;
  box-shadow: var(--shadow-hover);
  border: 1px solid rgba(255,255,255,0.5);
}

.equipment-card h3 {
  margin-bottom: 10px;
  font-size: 19px;
  font-weight: 700;
  color: var(--tg-theme-text-color);
}

.equip-category, .equip-model, .equip-price {
  color: var(--tg-theme-hint-color);
  font-size: 14px;
  margin-bottom: 6px;
}

.equip-price {
  color: var(--tg-theme-button-color);
  font-weight: 700;
  font-size: 17px;
  margin-top: 10px;
  background: linear-gradient(135deg, var(--tg-theme-button-color), #2678d4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.quantity-selector {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 20px 0;
}

.qty-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid rgba(0,0,0,0.08);
  background: linear-gradient(135deg, #ffffff 0%, #f8f8f8 100%);
  font-size: 24px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow);
  color: var(--tg-theme-text-color);
  font-weight: 600;
}

.qty-btn:hover {
  transform: scale(1.08);
  box-shadow: var(--shadow-hover);
  border-color: var(--tg-theme-button-color);
}

.qty-btn:active {
  transform: scale(0.95);
  background: var(--tg-theme-secondary-bg-color);
}

.quantity-selector input {
  width: 76px;
  height: 48px;
  text-align: center;
  font-size: 19px;
  border: 2px solid rgba(0,0,0,0.08);
  border-radius: var(--border-radius);
  background: linear-gradient(135deg, #ffffff 0%, #f8f8f8 100%);
  color: var(--tg-theme-text-color);
  font-weight: 700;
  box-shadow: var(--shadow-inner);
  outline: none;
  transition: all var(--transition-normal);
}

.quantity-selector input:focus {
  border-color: var(--tg-theme-button-color);
  box-shadow: 0 4px 16px rgba(51, 144, 236, 0.15);
}

.add-to-cart-btn {
  width: 100%;
  padding: 16px;
  background: linear-gradient(135deg, var(--tg-theme-success-color) 0%, #28a745 100%);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  font-size: 17px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 14px;
  transition: all var(--transition-normal);
  box-shadow: 0 4px 14px rgba(52, 199, 89, 0.35);
  position: relative;
  overflow: hidden;
}

.add-to-cart-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

.add-to-cart-btn:hover::before {
  left: 100%;
}

.add-to-cart-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(52, 199, 89, 0.45);
}

.add-to-cart-btn:active {
  transform: translateY(0) scale(0.98);
  box-shadow: 0 2px 10px rgba(52, 199, 89, 0.3);
}

/* Корзина */
.cart-items {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.cart-item {
  background: linear-gradient(135deg, var(--tg-theme-secondary-bg-color) 0%, #e9e9ea 100%);
  padding: 16px 18px;
  border-radius: var(--border-radius-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow);
  transition: all var(--transition-normal);
  border: 1px solid rgba(255,255,255,0.5);
}

.cart-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.cart-item-info {
  flex: 1;
  min-width: 0;
}

.cart-item-name {
  font-weight: 600;
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 15px;
  color: var(--tg-theme-text-color);
}

.cart-item-meta {
  font-size: 13px;
  color: var(--tg-theme-hint-color);
  margin-bottom: 2px;
}

.cart-item-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: 12px;
}

.cart-item-qty {
  font-weight: 700;
  min-width: 28px;
  text-align: center;
  background: linear-gradient(135deg, var(--tg-theme-button-color), #2678d4);
  color: white;
  padding: 6px 10px;
  border-radius: 8px;
  font-size: 14px;
  box-shadow: 0 2px 8px rgba(51, 144, 236, 0.3);
}

.remove-item-btn {
  background: linear-gradient(135deg, var(--tg-theme-danger-color), #ff6b6b);
  color: white;
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
  box-shadow: 0 2px 8px rgba(255, 59, 48, 0.3);
}

.remove-item-btn:hover {
  transform: scale(1.1) rotate(90deg);
  box-shadow: 0 4px 12px rgba(255, 59, 48, 0.4);
}

.remove-item-btn:active {
  transform: scale(1.05) rotate(90deg);
}

/* Кнопки количества в каталоге и корзине */
.quantity-selector-small {
  display: flex;
  align-items: center;
  gap: 8px;
}

.qty-btn-small {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 2px solid rgba(0,0,0,0.08);
  background: linear-gradient(135deg, #ffffff 0%, #f8f8f8 100%);
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
  color: var(--tg-theme-text-color);
  box-shadow: var(--shadow);
  font-weight: 600;
}

.qty-btn-small:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-hover);
  border-color: var(--tg-theme-button-color);
}

.qty-btn-small:active {
  transform: scale(0.95);
  background: var(--tg-theme-secondary-bg-color);
}

.qty-display {
  font-weight: 700;
  min-width: 26px;
  text-align: center;
  font-size: 15px;
  color: var(--tg-theme-text-color);
}

.add-to-cart-btn-small {
  padding: 9px 16px;
  background: linear-gradient(135deg, var(--tg-theme-button-color), #2678d4);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: 0 3px 10px rgba(51, 144, 236, 0.3);
}

.add-to-cart-btn-small:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 16px rgba(51, 144, 236, 0.4);
}

.add-to-cart-btn-small:active {
  transform: translateY(0) scale(0.96);
}

.cart-item-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.empty-state {
  text-align: center;
  padding: 56px 20px;
  color: var(--tg-theme-hint-color);
  font-size: 15px;
  animation: fadeIn 0.4s ease;
}

.empty-state p {
  margin-bottom: 10px;
}

/* Профиль */
.profile-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  background: var(--tg-theme-secondary-bg-color);
  padding: 5px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-inner);
}

.tab-btn {
  flex: 1;
  padding: 11px 16px;
  background: transparent;
  border: none;
  border-radius: var(--border-radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  color: var(--tg-theme-hint-color);
  transition: all var(--transition-normal);
}

.tab-btn:hover {
  color: var(--tg-theme-text-color);
}

.tab-btn.active {
  background: linear-gradient(135deg, var(--tg-theme-bg-color), #fff);
  color: var(--tg-theme-button-color);
  box-shadow: var(--shadow);
}

.profile-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.checkout-item {
  background: linear-gradient(135deg, var(--tg-theme-secondary-bg-color) 0%, #e9e9ea 100%);
  padding: 18px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow);
  transition: all var(--transition-normal);
  border: 1px solid rgba(255,255,255,0.5);
  animation: slideUp 0.3s ease;
}

.checkout-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

/* История - новый стиль */
.history-item {
  background: linear-gradient(135deg, var(--tg-theme-secondary-bg-color) 0%, #e9e9ea 100%);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow);
  padding: 18px;
  margin-bottom: 14px;
  transition: all var(--transition-normal);
  border: 1px solid rgba(255,255,255,0.5);
  animation: slideUp 0.3s ease;
}

.history-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.history-item-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(0,0,0,0.06);
}

.history-item-dates {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.history-date {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
}

.history-label {
  color: var(--tg-theme-hint-color);
  font-weight: 600;
}

.history-value {
  font-weight: 600;
  color: var(--tg-theme-text-color);
}

.history-item-summary {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: flex-end;
}

.history-duration {
  font-size: 13px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--tg-theme-button-color), #2678d4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.history-total {
  font-size: 16px;
  font-weight: 700;
  color: var(--tg-theme-text-color);
}

.history-items-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 14px;
}

.history-item-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  padding: 6px 0;
}

.history-item-name {
  flex: 1;
  font-weight: 600;
  color: var(--tg-theme-text-color);
}

.history-item-qty {
  color: var(--tg-theme-hint-color);
  margin: 0 10px;
  font-weight: 600;
}

.history-item-unit-price {
  color: var(--tg-theme-hint-color);
  font-size: 12px;
  margin: 0 10px;
}

.history-item-price {
  font-weight: 700;
  background: linear-gradient(135deg, var(--tg-theme-button-color), #2678d4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.history-item-days {
  color: var(--tg-theme-hint-color);
  font-size: 12px;
  margin: 0 10px;
}

.history-item-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px;
  background: rgba(38, 120, 212, 0.12);
  border-radius: 8px;
  margin-bottom: 12px;
  border: 1px solid rgba(38, 120, 212, 0.2);
}

.history-item-total-label {
  font-size: 13px;
  color: var(--tg-theme-hint-color);
  font-weight: 600;
}

.history-item-total-value {
  font-size: 16px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--tg-theme-success-color), #2da84a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.delete-history-btn {
  width: 100%;
  padding: 11px;
  background: transparent;
  border: 2px solid var(--tg-theme-danger-color);
  color: var(--tg-theme-danger-color);
  border-radius: var(--border-radius);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.delete-history-btn:hover {
  background: linear-gradient(135deg, var(--tg-theme-danger-color), #ff6b6b);
  color: white;
  box-shadow: 0 4px 12px rgba(255, 59, 48, 0.3);
  transform: translateY(-1px);
}

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

.checkout-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(0,0,0,0.06);
}

.checkout-item-name {
  font-weight: 700;
  font-size: 15px;
  color: var(--tg-theme-text-color);
}

.checkout-item-date {
  font-size: 12px;
  color: var(--tg-theme-hint-color);
  white-space: nowrap;
  margin-left: 8px;
}

.checkout-item-meta {
  font-size: 14px;
  color: var(--tg-theme-hint-color);
  margin: 8px 0;
}

.checkout-item-actions {
  display: flex;
  gap: 10px;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid rgba(0,0,0,0.06);
}

.checkout-item-actions button {
  padding: 12px 18px;
  border-radius: var(--border-radius);
  border: none;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  flex: 1;
}

.return-via-qr-btn {
  background: linear-gradient(135deg, #ff6b35 0%, #ff8c42 100%);
  color: white;
  box-shadow: 0 3px 10px rgba(255, 107, 53, 0.3);
}

.return-via-qr-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 16px rgba(255, 107, 53, 0.4);
}

.return-via-qr-btn:active {
  transform: translateY(0) scale(0.97);
}

/* Кнопка возврата через QR */
.return-via-qr-btn {
  background: linear-gradient(135deg, var(--tg-theme-success-color), #28a745);
  color: white;
  border: none;
  padding: 12px 20px;
  border-radius: var(--border-radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: 0 3px 10px rgba(52, 199, 89, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.return-via-qr-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 16px rgba(52, 199, 89, 0.4);
}

.return-via-qr-btn:active {
  transform: translateY(0) scale(0.97);
}

/* Карточка возврата */
.return-card {
  border: 2px solid var(--tg-theme-success-color);
  background: linear-gradient(135deg, rgba(52, 199, 89, 0.05), rgba(40, 167, 69, 0.05));
}

.return-card h3 {
  color: var(--tg-theme-success-color);
  margin-bottom: 12px;
}

.return-scan-result .equipment-card {
  border: 2px solid var(--tg-theme-success-color);
}

.edit-btn {
  background: linear-gradient(135deg, var(--tg-theme-button-color), #2678d4);
  color: white;
  box-shadow: 0 3px 10px rgba(51, 144, 236, 0.3);
}

.edit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 16px rgba(51, 144, 236, 0.4);
}

.edit-btn:active {
  transform: translateY(0) scale(0.97);
}

/* Каталог */
.catalog-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.catalog-item {
  background: linear-gradient(135deg, var(--tg-theme-secondary-bg-color) 0%, #e9e9ea 100%);
  padding: 16px 18px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all var(--transition-normal);
  border: 1px solid rgba(255,255,255,0.5);
}

.catalog-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.catalog-item-info {
  flex: 1;
  min-width: 0;
}

.catalog-item-name {
  font-weight: 600;
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 15px;
  color: var(--tg-theme-text-color);
}

.catalog-item-meta {
  font-size: 13px;
  color: var(--tg-theme-hint-color);
  margin-bottom: 2px;
}

.catalog-item-actions {
  display: flex;
  gap: 8px;
  margin-left: 12px;
}

.catalog-item-actions button {
  padding: 10px 14px;
  border-radius: var(--border-radius);
  border: none;
  font-size: 18px;
  cursor: pointer;
  background: linear-gradient(135deg, #ffffff, #f8f8f8);
  transition: all var(--transition-normal);
  box-shadow: var(--shadow);
}

.catalog-item-actions button:hover {
  transform: scale(1.08);
  box-shadow: var(--shadow-hover);
}

.catalog-item-actions button:active {
  transform: scale(0.95);
  background: var(--tg-theme-secondary-bg-color);
}

/* QR-коды */
.qr-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  background: var(--tg-theme-secondary-bg-color);
  padding: 5px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-inner);
}

.qr-section {
  animation: fadeIn 0.3s ease;
}

.qr-batch-actions {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.qr-batch-actions button {
  flex: 1;
  min-width: 140px;
}

.qr-equipment-list, .qr-saved-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.qr-item {
  background: linear-gradient(135deg, var(--tg-theme-secondary-bg-color) 0%, #e9e9ea 100%);
  padding: 16px 18px;
  border-radius: var(--border-radius-lg);
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: var(--shadow);
  transition: all var(--transition-normal);
  border: 1px solid rgba(255,255,255,0.5);
}

.qr-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.qr-checkbox {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  border: 2px solid rgba(0,0,0,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: all var(--transition-normal);
}

.qr-checkbox.checked {
  background: linear-gradient(135deg, var(--tg-theme-button-color), #2678d4);
  border-color: var(--tg-theme-button-color);
  box-shadow: 0 2px 8px rgba(51, 144, 236, 0.4);
}

.qr-checkbox.checked::after {
  content: '✓';
  color: white;
  font-size: 14px;
  font-weight: 700;
}

.qr-item-info {
  flex: 1;
  min-width: 0;
}

.qr-item-name {
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 15px;
  color: var(--tg-theme-text-color);
}

.qr-item-code {
  font-size: 12px;
  color: var(--tg-theme-hint-color);
  font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
  margin-top: 4px;
  background: rgba(0,0,0,0.05);
  padding: 3px 8px;
  border-radius: 4px;
  display: inline-block;
}

.qr-item-actions {
  display: flex;
  gap: 8px;
}

.qr-item-actions button {
  padding: 10px;
  border-radius: var(--border-radius);
  border: none;
  background: linear-gradient(135deg, #ffffff, #f8f8f8);
  cursor: pointer;
  font-size: 16px;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow);
}

.qr-item-actions button:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-hover);
}

.qr-item-actions button:active {
  transform: scale(0.95);
}

.qr-preview {
  margin-top: 18px;
  text-align: center;
  padding: 20px;
  background: linear-gradient(135deg, var(--tg-theme-bg-color), #fafafa);
  border-radius: var(--border-radius-lg);
  position: relative;
  box-shadow: var(--shadow-hover);
  border: 1px solid rgba(255,255,255,0.8);
}

.qr-preview img {
  max-width: 200px;
  border: 1px solid rgba(0,0,0,0.1);
  border-radius: var(--border-radius);
  padding: 14px;
  background: white;
  box-shadow: var(--shadow);
}

.qr-preview p {
  margin-top: 14px;
  font-weight: 600;
  color: var(--tg-theme-text-color);
}

.qr-preview-close-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background: linear-gradient(135deg, var(--tg-theme-secondary-bg-color), #e8e8e9);
  border: none;
  padding: 8px 14px;
  border-radius: var(--border-radius);
  font-size: 13px;
  cursor: pointer;
  color: var(--tg-theme-text-color);
  transition: all var(--transition-normal);
  font-weight: 600;
}

.qr-preview-close-btn:hover {
  background: var(--tg-theme-danger-color);
  color: white;
  transform: scale(1.05);
}

.qr-preview-close-btn:active {
  transform: scale(0.98);
}

/* Модальное окно */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
  animation: fadeIn 0.25s ease;
}

.modal-content {
  background: linear-gradient(135deg, var(--tg-theme-bg-color) 0%, #fafafa 100%);
  padding: 28px;
  border-radius: var(--border-radius-lg);
  width: 100%;
  max-width: 420px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
  animation: modalSlideUp 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalSlideUp {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal-content h2 {
  margin-bottom: 24px;
  font-size: 22px;
  font-weight: 700;
  color: var(--tg-theme-text-color);
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  color: var(--tg-theme-hint-color);
  font-weight: 600;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 13px 16px;
  border: 2px solid rgba(0,0,0,0.08);
  border-radius: var(--border-radius);
  font-size: 16px;
  background: var(--tg-theme-secondary-bg-color);
  color: var(--tg-theme-text-color);
  outline: none;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-inner);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--tg-theme-button-color);
  background: var(--tg-theme-bg-color);
  box-shadow: 0 4px 16px rgba(51, 144, 236, 0.15);
  transform: translateY(-1px);
}

.form-group textarea {
  min-height: 90px;
  resize: vertical;
  font-family: inherit;
}

.modal-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.modal-actions button {
  flex: 1;
}

/* Уведомления */
.notification {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  background: #333;
  color: white;
  padding: 14px 24px;
  border-radius: var(--border-radius-lg);
  z-index: 2000;
  font-size: 15px;
  font-weight: 500;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  animation: notificationSlideDown 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  max-width: 90%;
  text-align: center;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

@keyframes notificationSlideDown {
  from { 
    opacity: 0; 
    transform: translateX(-50%) translateY(-30px);
  }
  to { 
    opacity: 1; 
    transform: translateX(-50%) translateY(0);
  }
}

.notification.success {
  background: linear-gradient(135deg, var(--tg-theme-success-color), #28a745);
  box-shadow: 0 8px 32px rgba(52, 199, 89, 0.4);
}

.notification.error {
  background: linear-gradient(135deg, var(--tg-theme-danger-color), #ff6b6b);
  box-shadow: 0 8px 32px rgba(255, 59, 48, 0.4);
}

/* Загрузка */
.loading {
  text-align: center;
  padding: 40px;
  color: var(--tg-theme-hint-color);
  font-size: 15px;
  animation: fadeIn 0.4s ease;
}

.loading::after {
  content: '';
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 3px solid rgba(51, 144, 236, 0.2);
  border-top-color: var(--tg-theme-button-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-left: 10px;
  vertical-align: middle;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Адаптив для тёмной темы */
@media (prefers-color-scheme: dark) {
  :root {
    --tg-theme-secondary-bg-color: #1c1c1e;
    --tg-theme-bg-color: #000000;
  }

  body {
    background: linear-gradient(180deg, #000000 0%, #1c1c1e 100%);
  }

  .equipment-card,
  .cart-item,
  .checkout-item,
  .catalog-item,
  .qr-item,
  .history-item {
    background: linear-gradient(135deg, #2c2c2e 0%, #3a3a3c 100%);
  }

  .search-box input,
  .form-group input,
  .form-group textarea,
  .form-group select {
    background: #1c1c1e;
    border-color: #38383a;
  }

  .qty-btn,
  .qty-btn-small,
  .catalog-item-actions button,
  .qr-item-actions button {
    background: linear-gradient(135deg, #2c2c2e, #3a3a3c);
    color: #ffffff;
  }

  .modal-content {
    background: linear-gradient(135deg, #1c1c1e 0%, #2c2c2e 100%);
  }

  .bottom-nav {
    background: rgba(28, 28, 30, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
  }

  .tab-btn.active {
    background: linear-gradient(135deg, #1c1c1e, #2c2c2e);
  }

  .qr-preview {
    background: linear-gradient(135deg, #1c1c1e, #2c2c2e);
  }

  .qr-preview img {
    background: #000000;
  }
}

/* Утилиты */
.text-small {
  font-size: 13px;
  color: var(--tg-theme-hint-color);
}

.text-success {
  color: var(--tg-theme-success-color);
}

.text-danger {
  color: var(--tg-theme-danger-color);
}

.mt-2 {
  margin-top: 8px;
}

/* ==================== RETURN CART ==================== */
.return-checkout-info {
  background: linear-gradient(135deg, #ff6b35 0%, #ff8c42 100%);
  color: white;
  padding: 16px;
  margin: 12px 16px;
  border-radius: var(--border-radius);
  box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

.return-checkout-info h3 {
  font-size: 16px;
  margin-bottom: 4px;
}

.return-checkout-info p {
  font-size: 13px;
  opacity: 0.9;
}

.return-cart-items {
  padding: 0 16px;
}

.return-cart-item {
  background: linear-gradient(135deg, var(--tg-theme-secondary-bg-color) 0%, #e9e9ea 100%);
  border-radius: var(--border-radius-lg);
  padding: 14px 16px;
  margin-bottom: 12px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 12px;
  transition: all var(--transition-normal);
  border: 1px solid rgba(255,255,255,0.5);
}

.return-cart-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.return-cart-item.scanned {
  border-left: 4px solid var(--tg-theme-success-color);
  background: linear-gradient(135deg, rgba(52, 199, 89, 0.08) 0%, rgba(52, 199, 89, 0.12) 100%);
}

.return-cart-item-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.return-cart-item-name {
  font-weight: 600;
  font-size: 15px;
  color: var(--tg-theme-text-color);
  /* Не обрезать названия, но и не переносить вертикально */
  white-space: normal;
  word-wrap: break-word;
  overflow-wrap: break-word;
  hyphens: auto;
}

.return-cart-item-meta {
  font-size: 13px;
  color: var(--tg-theme-hint-color);
}

.return-scan-btn {
  background: linear-gradient(135deg, var(--tg-theme-button-color) 0%, #4aa3f5 100%);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  white-space: nowrap;
  box-shadow: 0 3px 10px rgba(51, 144, 236, 0.3);
  flex-shrink: 0;
}

.return-scan-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 16px rgba(51, 144, 236, 0.4);
}

.return-scan-btn:active {
  transform: translateY(0) scale(0.96);
}

.return-scan-btn.scanned {
  background: linear-gradient(135deg, var(--tg-theme-success-color) 0%, #4cd964 100%);
  cursor: default;
  box-shadow: 0 2px 8px rgba(52, 199, 89, 0.3);
}

.return-scan-btn.scanned:hover {
  transform: none;
}

.return-scan-btn.scanned:active {
  transform: none;
}

.return-scan-status {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
  background: var(--tg-theme-secondary-bg-color);
  color: var(--tg-theme-hint-color);
  flex-shrink: 0;
  transition: all var(--transition-normal);
}

.return-scan-status.scanned {
  background: var(--tg-theme-success-color);
  color: white;
  box-shadow: 0 2px 8px rgba(52, 199, 89, 0.4);
}

.return-cart-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--tg-theme-bg-color);
  border-top: 1px solid var(--tg-theme-secondary-bg-color);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 -2px 8px rgba(0,0,0,0.06);
  z-index: 100;
}

.return-summary {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--tg-theme-text-color);
}

.return-summary span:nth-child(2) {
  font-weight: 700;
  color: var(--tg-theme-success-color);
  font-size: 18px;
}

#confirm-return-btn {
  padding: 12px 24px;
  border-radius: var(--border-radius-lg);
  font-weight: 600;
  font-size: 14px;
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  background: linear-gradient(135deg, #ff6b35 0%, #ff8c42 100%);
  color: white;
  box-shadow: 0 4px 14px rgba(255, 107, 53, 0.35);
}

#confirm-return-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 107, 53, 0.45);
}

#confirm-return-btn:active {
  transform: translateY(0) scale(0.96);
}

#confirm-return-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* Return cart page header */
#page-return-cart .page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  background: linear-gradient(135deg, #ff6b35 0%, #ff8c42 100%);
  color: white;
  margin-bottom: 8px;
}

#page-return-cart .page-header h1 {
  font-size: 20px;
  margin: 0;
}

#back-to-profile-btn {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  border: none;
  padding: 8px 16px;
  border-radius: var(--border-radius);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

#back-to-profile-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-1px);
}

#back-to-profile-btn:active {
  background: rgba(255, 255, 255, 0.4);
}

.mb-2 {
  margin-bottom: 8px;
}