.purchase-page { background: var(--paper); font-size: 1rem; }
.purchase-header { border-bottom: 1px solid var(--line); background: var(--white); }
.purchase-header .container { min-height: 84px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.purchase-brand { display: flex; align-items: center; gap: 12px; font-size: 1.1rem; font-weight: 700; }
.purchase-brand img { width: 44px; height: 44px; }
.purchase-language { display: flex; align-items: center; gap: 10px; font-size: .9rem; }
.purchase-language select { max-width: 150px; padding: .6rem; border: 1px solid var(--line); background: var(--white); border-radius: 8px; }
.purchase-main { padding-block: 40px 56px; }
.purchase-intro { max-width: 770px; margin-bottom: 28px; }
.purchase-intro h1 { margin: 0 0 12px; font-family: var(--serif); font-size: clamp(2.3rem, 5vw, 3.6rem); line-height: 1.1; }
.purchase-intro p { color: var(--ink-soft); margin: 0; }
.purchase-layout { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 28px; align-items: start; }
.purchase-details { min-width: 0; display: grid; gap: 24px; }
.purchase-section { margin: 0; min-width: 0; border: 1px solid var(--line); border-radius: 18px; padding: 24px; background: var(--white); }
.purchase-section legend { padding: 0 8px; font-family: var(--serif); font-size: 1.45rem; font-weight: 700; }
.purchase-editions { display: grid; gap: 10px; }
.purchase-edition { display: grid; grid-template-columns: 40px minmax(0,1fr) 76px; gap: 14px; align-items: center; padding: 12px; background: #fff; border: 1px solid var(--line); border-radius: 10px; }
.purchase-edition img { width: 40px; height: 60px; object-fit: contain; }
.purchase-edition strong, .purchase-edition small { display: block; }
.purchase-edition small { color: var(--ink-soft); font-size: .8rem; }
.purchase-edition input { width: 100%; padding: .6rem .3rem .6rem .6rem; border: 1px solid var(--line); border-radius: 7px; }
.purchase-edition .purchase-quantity-label { font-size: .85rem; }
.purchase-help { color: var(--ink-soft); margin: 0 0 16px; font-size: .9rem; }
.purchase-summary { position: sticky; top: 24px; padding: 24px; background: var(--white); border: 1px solid var(--line); border-radius: 18px; }
.purchase-summary h2 { font-family: var(--serif); font-size: 1.6rem; margin: 0 0 18px; }
.purchase-summary dl { margin: 0; }
.purchase-summary dl > div { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin: 12px 0; }
.purchase-summary dt, .purchase-summary dd { margin: 0; }
.purchase-summary dd { white-space: nowrap; font-weight: 700; }
.purchase-total { border-top: 1px solid var(--line); padding-top: 16px; font-size: 1.1rem; }
.purchase-summary .consent-row { display: flex; align-items: flex-start; gap: 10px; font-size: .9rem; margin-block: 16px; }
.purchase-summary .consent-row input { flex: none; margin-top: 6px; width: 18px; height: 18px; }
.purchase-summary .btn { width: 100%; white-space: normal; font-size: 1rem; }
.purchase-summary button:disabled { opacity: .55; cursor: not-allowed; }
.purchase-summary [data-purchase-guidance], .purchase-summary [data-purchase-service], .purchase-summary [data-purchase-status] { font-size: .9rem; }
.purchase-summary [data-purchase-guidance]:empty, .purchase-summary [data-purchase-service]:empty, .purchase-summary [data-purchase-status]:empty, .purchase-summary [data-purchase-discount]:empty { display: none; }
.purchase-summary [data-purchase-discount] { color: var(--green); font-size: .9rem; }
.purchase-summary [data-purchase-retry] { margin-bottom: 12px; }
.purchase-footer { border-top: 1px solid var(--line); padding-block: 22px; font-size: .9rem; }
.purchase-footer .container { display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; }
.purchase-footer nav { display: flex; flex-wrap: wrap; gap: 18px; }
@media (max-width: 980px) { .purchase-layout { grid-template-columns: minmax(0,1fr) 300px; gap: 18px; } }
@media (max-width: 760px) { .purchase-layout { grid-template-columns: 1fr; } .purchase-summary { position: static; } .purchase-main { padding-top: 26px; } }
@media (max-width: 460px) { .purchase-section, .purchase-summary { padding: 18px; } .purchase-header .container { flex-wrap: wrap; padding-block: 14px; gap: 10px; } .purchase-language { margin-left: auto; } .purchase-edition { gap: 10px; padding: 10px; } }

.purchase-page [hidden] { display: none !important; }