body {
  display: flex;
  justify-content: center;
  padding: 60px 16px;
  background: #f7f8fa;
}

.order-card {
  width: 300px;
  background: #ffffff;
  border: 1px solid #e5e5e5;
  border-radius: 12px;
  padding: 24px;
  font-family: Arial, sans-serif;
}

.order-card h2 {
  font-size: 16px;
  margin-bottom: 28px;
}

.price-line {
  font-size: 13px;
  margin-bottom: 12px;
}

.order-card hr {
  border: none;
  border-top: 1px solid #e5e5e5;
  margin: 0 0 20px;
}

.total-line {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  margin-bottom: 20px;
}

.total-line strong {
  font-size: 18px;
}

.secure-text {
  color: #8b95a1;
  font-size: 12px;
}

#checkout-button {
  margin-top: 20px;
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 8px;
  background: #111827;
  color: #fff;
  cursor: pointer;
}

#checkout-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}