/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f8f9fa;
}

.app {
  min-height: 100vh;
}

/* Header */
.header {
  background: #fff;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header h1 {
  color: #2c3e50;
  font-size: 1.8rem;
  font-weight: 700;
}

.cart-summary {
  display: flex;
  gap: 1rem;
  align-items: center;
  background: #e74c3c;
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 25px;
  font-weight: 500;
}

.cart-count {
  font-size: 0.9rem;
}

.cart-total {
  font-size: 1.1rem;
  font-weight: 700;
}

/* Main content */
.main-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

/* Loading and error states */
.loading, .error {
  text-align: center;
  padding: 3rem;
  font-size: 1.1rem;
}

.error {
  color: #e74c3c;
  background: #fdf2f2;
  border: 1px solid #f5c6cb;
  border-radius: 8px;
}

/* Menu section */
.menu-section {
  margin-bottom: 3rem;
}

.menu-section h2 {
  color: #2c3e50;
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
  border-bottom: 2px solid #3498db;
  padding-bottom: 0.5rem;
}

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

.menu-item {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.menu-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 15px rgba(0,0,0,0.15);
}

.menu-item-image {
  height: 200px;
  overflow: hidden;
}

.menu-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.menu-item-content {
  padding: 1.5rem;
}

.menu-item h3 {
  color: #2c3e50;
  margin-bottom: 0.5rem;
  font-size: 1.2rem;
  font-weight: 600;
}

.description {
  color: #666;
  margin-bottom: 1rem;
  font-size: 0.9rem;
  line-height: 1.5;
}

.menu-item-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.price {
  font-size: 1.3rem;
  font-weight: 700;
  color: #27ae60;
}

.add-to-cart-btn {
  background: #3498db;
  color: white;
  border: none;
  padding: 0.6rem 1.2rem;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
  transition: background-color 0.2s ease;
}

.add-to-cart-btn:hover {
  background: #2980b9;
}

/* Cart section */
.cart-section {
  background: white;
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.cart-section h2 {
  color: #2c3e50;
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
  border-bottom: 2px solid #e74c3c;
  padding-bottom: 0.5rem;
}

.cart-items {
  margin-bottom: 1.5rem;
}

.cart-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  border-bottom: 1px solid #eee;
}

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

.item-name {
  flex: 1;
  font-weight: 500;
  color: #2c3e50;
}

.quantity-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 1rem;
}

.qty-btn {
  background: #f8f9fa;
  border: 1px solid #dee2e6;
  color: #495057;
  width: 30px;
  height: 30px;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.2s ease;
}

.qty-btn:hover {
  background: #e9ecef;
  border-color: #adb5bd;
}

.quantity {
  min-width: 20px;
  text-align: center;
  font-weight: 600;
}

.item-total {
  font-weight: 600;
  color: #27ae60;
  min-width: 80px;
  text-align: right;
}

.cart-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  border-top: 2px solid #eee;
}

.total {
  font-size: 1.3rem;
  color: #2c3e50;
}

.checkout-btn {
  background: #27ae60;
  color: white;
  border: none;
  padding: 0.8rem 2rem;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  transition: background-color 0.2s ease;
}

.checkout-btn:hover {
  background: #219a52;
}

/* Responsive design */
@media (max-width: 768px) {
  .header {
    padding: 1rem;
    flex-direction: column;
    gap: 1rem;
  }
  
  .main-content {
    padding: 1rem;
  }
  
  .menu-grid {
    grid-template-columns: 1fr;
  }
  
  .cart-item {
    flex-direction: column;
    gap: 0.5rem;
    align-items: flex-start;
  }
  
  .quantity-controls {
    margin: 0;
  }
  
  .cart-footer {
    flex-direction: column;
    gap: 1rem;
  }
  
  .checkout-btn {
    width: 100%;
  }
}