.checkout-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
}
.checkout-steps li {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 7px;
  font-size: .8rem;
  font-weight: 700;
  padding: 10px;
  text-align: center;
}
.checkout-steps li.done { background: #e7eeff; color: var(--blue); }
.checkout-main { display: grid; gap: 20px; }
.step-number {
  background: var(--blue);
  border-radius: 50%;
  color: #fff;
  display: grid;
  float: right;
  font-weight: 700;
  height: 30px;
  margin: 0;
  place-items: center;
  width: 30px;
}
.address-choices, .shipping-choices {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.address-choice {
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  gap: 12px;
  padding: 14px;
}
.address-choice:has(input:checked) { border-color: var(--blue); box-shadow: 0 0 0 1px var(--blue); }
.address-choice > input { align-self: start; margin-top: 5px; width: auto; }
.address-choice > span { font-size: .9rem; }
.sticky-summary { position: sticky; top: 20px; }
.legal-check { border-top: 1px solid var(--line); margin-top: 14px; padding-top: 14px; }
.summary-line small, .order-lines small { color: var(--muted); display: block; }
.order-history-link { color: var(--ink); text-decoration: none; }
.order-history-link:hover { border-color: var(--blue); }
.order-detail-grid { margin-top: 24px; }
.order-detail-grid aside { display: grid; gap: 18px; }
@media (max-width: 900px) {
  .address-choices, .shipping-choices { grid-template-columns: 1fr; }
  .sticky-summary { position: static; }
}
@media (max-width: 560px) { .checkout-steps { grid-template-columns: 1fr 1fr; } }