/* ===== チェックアウトページ ===== */
.checkout-section { padding: 40px 0 80px; }

.checkout-empty {
  text-align: center; padding: 80px 20px; display: flex;
  flex-direction: column; align-items: center; gap: 20px;
}

.checkout-thanks {
  text-align: center; padding: 60px 20px; max-width: 520px; margin: 0 auto;
  display: flex; flex-direction: column; align-items: center; gap: 16px;
}
.checkout-thanks h2 { font-size: 1.6rem; font-weight: 400; color: var(--plum-deep); }
.checkout-thanks p { color: var(--gray); line-height: 1.9; }
.checkout-thanks .btn { margin-top: 8px; }

.checkout-title {
  font-size: clamp(1.6rem, 4vw, 2.1rem); font-weight: 300;
  color: var(--plum-deep); margin-bottom: 28px;
}

.checkout-grid {
  display: grid; grid-template-columns: 1fr; gap: 40px; min-width: 0;
}
.checkout-grid > * { min-width: 0; }
@media (min-width: 900px) {
  .checkout-grid { grid-template-columns: 1.6fr 1fr; align-items: start; }
}

.checkout-block {
  margin-bottom: 36px; padding-bottom: 32px;
  border-bottom: 1px solid rgba(201,107,138,.15);
}
.checkout-block h2 {
  font-size: 1.05rem; font-weight: 500; color: var(--plum-deep);
  margin-bottom: 18px; letter-spacing: .04em;
}

.form-grid { display: grid; grid-template-columns: 1fr; gap: 16px; min-width: 0; }
.form-grid > * { min-width: 0; }
@media (min-width: 560px) {
  .form-grid { grid-template-columns: 1fr 1fr; }
  .form-field.span-2 { grid-column: span 2; }
}

.form-field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.form-field span {
  font-size: .8rem; color: var(--ink); display: flex; align-items: center; gap: 6px;
  flex-wrap: wrap;
}
.form-field span em {
  font-style: normal; font-size: .68rem; padding: 2px 7px; letter-spacing: .05em;
}
.form-field span em.req {
  color: var(--white); background: var(--plum-deep); border: 1px solid var(--plum-deep);
}
.form-field span em.opt {
  color: var(--gray); background: transparent; border: 1px solid rgba(30,10,20,.15);
}
.form-field input, .form-field textarea, .form-field select {
  width: 100%; font-family: inherit; font-size: .92rem; padding: 11px 12px;
  border: 1px solid rgba(30,10,20,.15); background: var(--white);
  color: var(--ink); outline: none; transition: var(--trans);
}
.form-field input:focus, .form-field textarea:focus, .form-field select:focus { border-color: var(--plum-rose); }
.form-field textarea { resize: vertical; }
.form-field select { appearance: auto; }

.hp-field { position: absolute; left: -9999px; }

.payment-options { display: flex; flex-direction: column; gap: 12px; margin-bottom: 18px; min-width: 0; }
.payment-option {
  display: flex; align-items: flex-start; gap: 12px;
  border: 1px solid rgba(30,10,20,.15); padding: 14px 16px; cursor: pointer;
  transition: var(--trans); min-width: 0;
}
.payment-option:has(input:checked) { border-color: var(--plum-rose); background: var(--blossom-ll); }
.payment-option input { margin-top: 4px; accent-color: var(--plum-deep); flex-shrink: 0; }
.payment-option-body { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.payment-option-title { font-weight: 500; color: var(--plum-deep); }
.payment-option-desc { font-size: .8rem; color: var(--gray); line-height: 1.7; }
.payment-option-disabled { cursor: not-allowed; opacity: .55; }
.payment-option-disabled:has(input:checked) { border-color: rgba(30,10,20,.15); background: none; }
.payment-option-soon {
  display: inline-block; margin-left: 8px; font-size: .68rem; font-weight: 500;
  color: var(--gray); border: 1px solid rgba(30,10,20,.15); border-radius: 4px;
  padding: 1px 6px; vertical-align: middle;
}

.bank-info-box {
  border: 1px solid rgba(201,107,138,.25); background: var(--blossom-ll);
  padding: 18px 20px;
}
.bank-info-note { font-size: .75rem; color: var(--plum-rose); margin-bottom: 12px; }
.bank-info-box dl { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.bank-info-box dl > div { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 4px 12px; font-size: .88rem; min-width: 0; }
.bank-info-box dt { color: var(--gray); }
.bank-info-box dd { color: var(--ink); font-weight: 500; }

.checkout-summary-col { position: relative; }
@media (min-width: 900px) { .checkout-summary-col { position: sticky; top: 88px; } }

.checkout-summary {
  border: 1px solid rgba(201,107,138,.2); background: var(--blossom-ll);
  padding: 26px 24px;
}
.checkout-summary h2 {
  font-size: 1rem; font-weight: 500; color: var(--plum-deep);
  margin-bottom: 16px; letter-spacing: .04em;
}
.checkout-summary-items {
  display: flex; flex-direction: column; gap: 10px; min-width: 0;
  margin-bottom: 16px; padding-bottom: 16px;
  border-bottom: 1px solid rgba(201,107,138,.15);
}
.checkout-summary-item {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 4px 12px;
  font-size: .85rem; color: var(--ink); min-width: 0;
}
.checkout-summary-item-name { flex: 1; min-width: 0; }

.checkout-summary-row {
  display: flex; justify-content: space-between; font-size: .88rem;
  color: var(--ink); padding: 4px 0;
}
.checkout-summary-total {
  margin-top: 8px; padding-top: 12px;
  border-top: 1px solid rgba(201,107,138,.25);
  font-size: 1.1rem; font-weight: 600; color: var(--plum-deep);
}
.checkout-shipping-note {
  font-size: .7rem; color: var(--gray); line-height: 1.7; margin: 12px 0 18px;
}
.checkout-legal-note {
  font-size: .7rem; color: var(--gray); line-height: 1.7; margin-top: 12px; text-align: center;
}
.checkout-legal-note a { color: var(--plum-rose); text-decoration: underline; }
.checkout-legal-note a:hover { color: var(--plum-deep); }