.checkout-page {
  padding: 2rem 7vw 3rem;
}

.back-link {
  display: inline-block;
  margin-bottom: 1rem;
  color: var(--accent-dark);
  text-decoration: none;
  font-weight: 600;
}

.checkout-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 70vh;
  border: 1px solid var(--border);
  box-shadow: 0 10px 24px var(--shadow);
  background: var(--bg-card);
}

.summary-card,
.payment-card {
  padding: 2rem;
}

.summary-card {
  border-right: 1px solid var(--border);
  background: #faf7f2;
}

.summary-card h1,
.payment-card h2 {
  margin-bottom: 1rem;
}

.cart-items {
  display: grid;
  gap: 0.7rem;
  margin-bottom: 1rem;
}

.cart-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.5rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--border);
}

.cart-item small {
  color: var(--text-muted);
}

.item-actions {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.qty-btn {
  width: 1.7rem;
  height: 1.7rem;
  border: 1px solid var(--border);
  background: #fff;
  cursor: pointer;
}

.coupon-row {
  display: flex;
  gap: 0.5rem;
  margin: 1rem 0 0.35rem;
}

.coupon-row input,
.coupon-row button,
.payment-card input,
.pay-btn {
  border: 1px solid var(--border);
  padding: 0.6rem;
  font: inherit;
}

.coupon-row input,
.payment-card input {
  width: 100%;
}

.coupon-row button {
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}

.coupon-message {
  min-height: 1.4rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.price-row {
  display: flex;
  justify-content: space-between;
  margin-top: 0.45rem;
}

.total-row {
  margin-top: 1rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--border);
  font-size: 1.1rem;
}

.pay-icons {
  display: flex;
  gap: 0.45rem;
  margin-bottom: 1rem;
}

.pay-icon {
  border: 1px solid var(--border);
  padding: 0.35rem 0.55rem;
  background: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  min-height: 2rem;
}

.pay-icon img {
  height: 0.95rem;
  width: auto;
  display: block;
}

.pay-icon-label {
  font-size: 0.88rem;
  font-weight: 700;
  line-height: 1;
}

.payment-card label {
  display: block;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin: 0.55rem 0 0.2rem;
}

.input-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
}

.pay-btn {
  margin-top: 1rem;
  width: 100%;
  background: var(--accent-dark);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}

.success-message {
  font-weight: 700;
  color: #2a5f2d;
  text-align: center;
  letter-spacing: 0.04em;
}

.payment-message {
  margin-top: 0.65rem;
  min-height: 1.3rem;
  color: #a43d3d;
  font-size: 0.9rem;
}

.payment-card input.input-error {
  border-color: #b94a4a;
}

.success-overlay {
  position: fixed;
  inset: 0;
  backdrop-filter: blur(6px);
  background: rgba(40, 30, 22, 0.28);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 30;
}

.success-overlay.active {
  display: flex;
}

.success-modal {
  width: min(520px, 88vw);
  min-height: 160px;
  border: 2px solid var(--border);
  border-radius: 999px;
  background: #fffaf2;
  box-shadow: 0 12px 30px var(--shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.4rem 2rem;
}

.empty-note {
  color: var(--text-muted);
}

@media (max-width: 900px) {
  .checkout-layout {
    grid-template-columns: 1fr;
  }

  .summary-card {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }
}