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

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f8f9fa;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 1rem 0;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo h1 {
  font-size: 1.5rem;
  font-weight: bold;
}

.cart-icon {
  position: relative;
  cursor: pointer;
  font-size: 1.5rem;
  padding: 10px;
  border-radius: 50%;
  transition: background-color 0.3s;
}

.cart-icon:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.cart-count {
  position: absolute;
  top: -5px;
  right: -5px;
  background: #ff4757;
  color: white;
  border-radius: 50%;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: bold;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 120px 0 80px;
  text-align: center;
}

.hero-content h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  font-weight: bold;
}

.hero-content p {
  font-size: 1.2rem;
  opacity: 0.9;
}

/* Products Section */
.products {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 3rem;
  color: #333;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 800px;
  margin: 0 auto;
}

.product-card {
  background: white;
  border-radius: 15px;
  padding: 2rem;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s, box-shadow 0.3s;
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.product-image {
  font-size: 4rem;
  color: #667eea;
  margin-bottom: 1rem;
}

.product-info h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: #333;
}

.points {
  color: #667eea;
  font-weight: bold;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.description {
  color: #666;
  margin-bottom: 1rem;
}

.price {
  font-size: 2rem;
  font-weight: bold;
  color: #2ed573;
  margin-bottom: 1.5rem;
}

.add-to-cart-btn {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: 25px;
  font-size: 1rem;
  cursor: pointer;
  transition: transform 0.3s, box-shadow 0.3s;
  width: 100%;
}

.add-to-cart-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

/* Cart Sidebar */
.cart-sidebar {
  position: fixed;
  top: 0;
  right: -400px;
  width: 400px;
  height: 100vh;
  background: white;
  box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
  transition: right 0.3s;
  z-index: 1001;
  display: flex;
  flex-direction: column;
}

.cart-sidebar.active {
  right: 0;
}

.cart-header {
  padding: 20px;
  border-bottom: 1px solid #eee;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.close-cart {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: #666;
}

.cart-items {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
}

.cart-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 0;
  border-bottom: 1px solid #eee;
}

.cart-item-info h4 {
  margin-bottom: 5px;
}

.cart-item-info p {
  color: #666;
  font-size: 0.9rem;
}

.cart-item-price {
  font-weight: bold;
  color: #2ed573;
}

.remove-item {
  background: #ff4757;
  color: white;
  border: none;
  padding: 5px 10px;
  border-radius: 5px;
  cursor: pointer;
  margin-left: 10px;
}

.cart-footer {
  padding: 20px;
  border-top: 1px solid #eee;
}

.cart-total {
  margin-bottom: 15px;
  font-size: 1.2rem;
}

.checkout-btn {
  width: 100%;
  background: linear-gradient(135deg, #2ed573 0%, #17a2b8 100%);
  color: white;
  border: none;
  padding: 15px;
  border-radius: 10px;
  font-size: 1.1rem;
  cursor: pointer;
  transition: opacity 0.3s;
}

.checkout-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1002;
}

.modal.active {
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background: white;
  border-radius: 15px;
  width: 90%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  padding: 20px;
  border-bottom: 1px solid #eee;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.close-modal {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: #666;
}

.modal-body {
  padding: 20px;
}

.step {
  display: none;
}

.step.active {
  display: block;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 5px;
  font-weight: bold;
}

.form-group input {
  width: 100%;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 1rem;
}

.next-btn,
.submit-order-btn {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
  width: 100%;
}

.order-summary {
  background: #f8f9fa;
  padding: 20px;
  border-radius: 10px;
  margin-bottom: 20px;
}

.total-amount {
  font-size: 1.2rem;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid #ddd;
}

.qr-code-section {
  text-align: center;
  margin-bottom: 20px;
}

.qr-code {
  margin: 20px 0;
}

.qr-code img {
  max-width: 200px;
  border: 2px solid #ddd;
  border-radius: 10px;
}

.payment-instructions {
  text-align: left;
  background: #e3f2fd;
  padding: 15px;
  border-radius: 8px;
  margin: 20px 0;
}

.payment-confirmation {
  margin-top: 20px;
}

.payment-confirmation input[type="file"] {
  margin-bottom: 15px;
}

.success-message {
  text-align: center;
  padding: 40px 20px;
}

.success-message i {
  font-size: 4rem;
  color: #2ed573;
  margin-bottom: 20px;
}

.overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
}

.overlay.active {
  display: block;
}

/* Footer */
.footer {
  background: #333;
  color: white;
  padding: 40px 0 20px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 20px;
}

.footer-section h4 {
  margin-bottom: 10px;
  color: #667eea;
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid #555;
}

/* Responsive Design */
@media (max-width: 768px) {
  .cart-sidebar {
    width: 100%;
    right: -100%;
  }

  .hero-content h2 {
    font-size: 2rem;
  }

  .hero-content p {
    font-size: 1rem;
  }

  .products-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .modal-content {
    width: 95%;
    margin: 10px;
  }

  .container {
    padding: 0 15px;
  }
}

@media (max-width: 480px) {
  .logo h1 {
    font-size: 1.2rem;
  }

  .hero {
    padding: 100px 0 60px;
  }

  .products {
    padding: 60px 0;
  }

  .product-card {
    padding: 1.5rem;
  }
}