* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
  color: #fff;
  min-height: 100vh;
  padding-top: 80px;
}

.cart-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 40px 20px;
}

.cart-header {
  text-align: center;
  margin-bottom: 40px;
}

.cart-header h1 {
  font-size: 3rem;
  font-weight: 700;
  background: linear-gradient(135deg, #ff0000, #ff4444);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 10px;
}

.cart-header p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.2rem;
}

/* Estado carrito vacío */
.empty-cart {
  text-align: center;
  padding: 60px 20px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
}

.empty-cart i {
  font-size: 4rem;
  color: rgba(255, 255, 255, 0.3);
  margin-bottom: 20px;
}

.empty-cart h2 {
  font-size: 1.8rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 15px;
}

.empty-cart p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 1.1rem;
  margin-bottom: 30px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
  border: 2px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, #ff0000, #ff4444);
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 0, 0, 0.4);
}

/* Tabla de productos */
.cart-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 30px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
}

.cart-table th {
  background: rgba(255, 0, 0, 0.2);
  padding: 20px;
  text-align: left;
  font-weight: 600;
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.cart-table td {
  padding: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.9);
}

.cart-table tr:last-child td {
  border-bottom: none;
}

.cart-table tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

.product-name {
  font-weight: 600;
  color: #fff;
}

.product-price {
  color: #ff0000;
  font-weight: 700;
  font-size: 1.1rem;
}

.quantity-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 35px;
  height: 35px;
  background: rgba(255, 0, 0, 0.2);
  color: #ff0000;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
}

/* Sección de cupón */
.coupon-section {
  background: rgba(255, 255, 255, 0.05);
  padding: 25px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  margin-bottom: 30px;
}

.coupon-section h3 {
  color: #fff;
  margin-bottom: 15px;
  font-size: 1.3rem;
}

.coupon-form {
  display: flex;
  gap: 15px;
  align-items: center;
}

.coupon-input {
  flex: 1;
  padding: 12px 20px;
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.coupon-input:focus {
  outline: none;
  border-color: #ff0000;
  box-shadow: 0 0 20px rgba(255, 0, 0, 0.2);
}

.coupon-input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.btn-apply {
  background: transparent;
  color: #ff0000;
  border-color: #ff0000;
  white-space: nowrap;
}

.btn-apply:hover {
  background: #ff0000;
  color: white;
}

.discount-info {
  margin-top: 15px;
  padding: 15px;
  background: rgba(76, 175, 80, 0.2);
  border: 1px solid rgba(76, 175, 80, 0.3);
  border-radius: 8px;
  color: #4caf50;
  font-weight: 600;
}

/* Resumen de compra */
.order-summary {
  background: rgba(255, 255, 255, 0.05);
  padding: 30px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  margin-bottom: 30px;
}

.order-summary h3 {
  color: #fff;
  margin-bottom: 20px;
  font-size: 1.4rem;
  text-align: center;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.summary-row:last-child {
  border-bottom: none;
  font-weight: 700;
  font-size: 1.2rem;
  color: #ff0000;
}

.summary-label {
  color: rgba(255, 255, 255, 0.8);
}

.summary-value {
  color: #fff;
  font-weight: 600;
}

.discount-row {
  color: #4caf50 !important;
}

/* Métodos de pago */
.payment-section {
  background: rgba(255, 255, 255, 0.05);
  padding: 30px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  margin-bottom: 30px;
}

.payment-section h2 {
  color: #fff;
  margin-bottom: 20px;
  font-size: 1.5rem;
  text-align: center;
}

.payment-methods {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
  margin-bottom: 25px;
}

.payment-method {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px;
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.payment-method:hover {
  border-color: rgba(255, 0, 0, 0.3);
  background: rgba(255, 0, 0, 0.1);
}

.payment-method input[type='radio'] {
  display: none;
}

.payment-method input[type='radio']:checked + .payment-label {
  border-color: #ff0000;
  background: rgba(255, 0, 0, 0.2);
}

.payment-label {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  cursor: pointer;
  padding: 10px;
  border-radius: 6px;
  transition: all 0.3s ease;
}

.payment-icon {
  font-size: 1.5rem;
  color: #ff0000;
}

.payment-name {
  color: #fff;
  font-weight: 600;
}

.checkout-btn {
  width: 100%;
  justify-content: center;
  padding: 16px;
  font-size: 1.1rem;
  background: linear-gradient(135deg, #ff0000, #ff4444);
  color: white;
  border: none;
}

.checkout-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 0, 0, 0.4);
}

/* Responsive */
@media (max-width: 768px) {
  .cart-container {
    padding: 20px 15px;
  }

  .cart-header h1 {
    font-size: 2.2rem;
  }

  .cart-table {
    display: block;
    overflow-x: auto;
  }

  .cart-table th,
  .cart-table td {
    padding: 15px 10px;
    font-size: 0.9rem;
  }

  .coupon-form {
    flex-direction: column;
  }

  .coupon-input {
    width: 100%;
  }

  .btn-apply {
    width: 100%;
  }

  .payment-methods {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .cart-header h1 {
    font-size: 1.8rem;
  }

  .empty-cart {
    padding: 40px 15px;
  }

  .empty-cart i {
    font-size: 3rem;
  }

  .order-summary,
  .payment-section {
    padding: 20px;
  }
}