body {
  font-family: Inter, sans-serif;
  background: #f5f6fa;
}

.checkout-wrapper {
  max-width: 1300px;
  margin: 40px auto;
  display: flex;
  flex-wrap: wrap-reverse;
  gap: 40px;
}

.checkout-left {
  flex: 2;
}
.checkout-right {
  flex: 1;
}

.card,
.summary-card {
  background: white;
  padding: 30px;
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  margin-bottom: 25px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

input,
select {
  width: 100%;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid #ddd;
  margin-top: 6px;
}

.btn-primary {
  background: #111;
  color: white;
  padding: 14px 20px;
  border-radius: 12px;
  border: none;
  width: 100%;
  font-weight: 600;
  cursor: pointer;
}

.btn-secondary {
  background: #f0f0f0;
  padding: 10px 16px;
  border-radius: 10px;
  border: none;
  margin-bottom: 15px;
  cursor: pointer;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
}

.summary-total {
  display: flex;
  justify-content: space-between;
  font-size: 20px;
  font-weight: 700;
  margin-top: 15px;
}

.edit-link {
  display: block;
  margin-top: 20px;
  color: #555;
  text-decoration: none;
}