* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: #f5f7fa;
  color: #2d3748;
  line-height: 1.6;
}

header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 2rem;
  text-align: center;
}

header h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.subtitle {
  opacity: 0.9;
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.family-info {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  font-size: 0.9rem;
}

.family-info .budget {
  background: rgba(255,255,255,0.2);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-weight: 600;
}

.tabs {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  background: white;
  padding: 1rem;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.tab {
  padding: 0.7rem 1.2rem;
  border: none;
  background: #e2e8f0;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.95rem;
  transition: all 0.3s;
}

.tab:hover {
  background: #cbd5e0;
}

.tab.active {
  background: #667eea;
  color: white;
}

main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
}

.tab-content {
  display: none;
}

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

section h2 {
  color: #4a5568;
  margin-bottom: 1.5rem;
  font-size: 1.8rem;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.btn-primary {
  background: #667eea;
  color: white;
  border: none;
  padding: 0.8rem 1.5rem;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.3s;
}

.btn-primary:hover {
  background: #5a67d8;
}

.btn-secondary {
  background: #48bb78;
  color: white;
  border: none;
  padding: 0.8rem 1.5rem;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.3s;
}

.btn-secondary:hover {
  background: #38a169;
}

.totals-block {
  background: white;
  padding: 1.5rem;
  border-radius: 12px;
  margin-bottom: 2rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.totals-block h3 {
  color: #667eea;
  margin-bottom: 1rem;
}

.totals-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
}

.total-item {
  text-align: center;
  padding: 1rem;
  background: #f7fafc;
  border-radius: 8px;
}

.total-item .value {
  font-size: 1.8rem;
  font-weight: bold;
  color: #667eea;
}

.total-item .label {
  font-size: 0.85rem;
  color: #718096;
  margin-top: 0.3rem;
}

.week-grid {
  display: grid;
  gap: 1.5rem;
}

.day-card {
  background: white;
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.day-card h3 {
  color: #667eea;
  margin-bottom: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.day-card .date {
  font-size: 0.85rem;
  color: #a0aec0;
  font-weight: normal;
}

.meal-row {
  display: grid;
  grid-template-columns: 100px 1fr 150px;
  gap: 1rem;
  padding: 0.8rem 0;
  border-bottom: 1px solid #e2e8f0;
  align-items: center;
}

.meal-row:last-child {
  border-bottom: none;
}

.meal-type {
  font-weight: 600;
  color: #4a5568;
  text-transform: uppercase;
  font-size: 0.85rem;
}

.meal-name {
  color: #2d3748;
}

.meal-kbzu {
  font-size: 0.85rem;
  color: #718096;
  text-align: right;
}

.filters {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.5rem 1rem;
  border: 2px solid #e2e8f0;
  background: white;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.3s;
}

.filter-btn:hover {
  border-color: #667eea;
}

.filter-btn.active {
  background: #667eea;
  color: white;
  border-color: #667eea;
}

.meals-grid, .recipes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.meal-card, .recipe-card {
  background: white;
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  cursor: pointer;
  transition: transform 0.3s, box-shadow 0.3s;
}

.meal-card:hover, .recipe-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.meal-card h4, .recipe-card h4 {
  color: #2d3748;
  margin-bottom: 0.5rem;
}

.meal-card .type-badge {
  display: inline-block;
  padding: 0.3rem 0.8rem;
  background: #e2e8f0;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}

.type-badge[data-type="завтрак"] { background: #fef3c7; color: #92400e; }
.type-badge[data-type="обед"] { background: #d1fae5; color: #065f46; }
.type-badge[data-type="ужин"] { background: #dbeafe; color: #1e40af; }

.kbzu-row {
  display: flex;
  gap: 1rem;
  font-size: 0.85rem;
  color: #718096;
  margin-top: 0.8rem;
}

.kbzu-item {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.kbzu-item strong {
  color: #4a5568;
}

.recipe-detail {
  background: white;
  border-radius: 12px;
  padding: 2rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  margin-top: 2rem;
  display: none;
}

.recipe-detail.active {
  display: block;
}

.recipe-detail h3 {
  color: #667eea;
  margin-bottom: 1rem;
}

.recipe-detail .detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.ingredients-list, .kbzu-table {
  background: #f7fafc;
  padding: 1.5rem;
  border-radius: 8px;
}

.ingredients-list h4, .kbzu-table h4 {
  color: #4a5568;
  margin-bottom: 1rem;
}

.ingredients-list ul {
  list-style: none;
}

.ingredients-list li {
  padding: 0.5rem 0;
  border-bottom: 1px solid #e2e8f0;
}

.kbzu-table table {
  width: 100%;
  border-collapse: collapse;
}

.kbzu-table th, .kbzu-table td {
  padding: 0.8rem;
  text-align: left;
  border-bottom: 1px solid #e2e8f0;
}

.kbzu-table th {
  color: #4a5568;
  font-weight: 600;
}

.shopping-grid {
  display: grid;
  gap: 1.5rem;
}

.category-group {
  background: white;
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.category-group h3 {
  color: #667eea;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #e2e8f0;
}

.product-item {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  padding: 0.8rem 0;
  border-bottom: 1px solid #f7fafc;
}

.product-item:last-child {
  border-bottom: none;
}

.product-item .name {
  color: #2d3748;
}

.product-item .amount {
  color: #4a5568;
  font-weight: 600;
}

.product-item .cost {
  color: #48bb78;
  font-weight: 600;
  text-align: right;
}

.timeline-list {
  background: white;
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.timeline-item {
  display: grid;
  grid-template-columns: 150px 1fr 100px;
  gap: 1rem;
  padding: 1rem;
  border-left: 4px solid #667eea;
  background: #f7fafc;
  margin-bottom: 1rem;
  border-radius: 0 8px 8px 0;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-item .day {
  font-weight: 600;
  color: #667eea;
}

.timeline-item .action {
  color: #2d3748;
}

.timeline-item .action .details {
  font-size: 0.9rem;
  color: #718096;
  margin-top: 0.3rem;
}

.timeline-item .time {
  color: #48bb78;
  font-weight: 600;
  text-align: right;
}

.hint {
  color: #718096;
  font-style: italic;
  margin-bottom: 1.5rem;
}

.loading {
  text-align: center;
  padding: 3rem;
  color: #a0aec0;
}

.empty-state {
  text-align: center;
  padding: 3rem;
  color: #a0aec0;
}

.empty-state p {
  margin-top: 1rem;
}

@media (max-width: 768px) {
  header h1 {
    font-size: 1.8rem;
  }
  
  .family-info {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .tabs {
    flex-wrap: wrap;
  }
  
  .tab {
    font-size: 0.85rem;
    padding: 0.5rem 0.8rem;
  }
  
  .meal-row {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
  
  .meal-kbzu {
    text-align: left;
  }
  
  .recipe-detail .detail-grid {
    grid-template-columns: 1fr;
  }
  
  .product-item {
    grid-template-columns: 1fr;
    gap: 0.3rem;
  }
  
  .timeline-item {
    grid-template-columns: 1fr;
  }
}