body.coa-checkout-open { overflow: hidden; }
.coa-checkout-overlay, .coa-checkout-status, .coa-checkout-toast { font-family: 'DM Sans', ui-sans-serif, system-ui, sans-serif; }
.coa-checkout-overlay { position: fixed; inset: 0; z-index: 2147483000; display: grid; place-items: center; padding: 20px; background: rgba(5, 12, 27, .72); backdrop-filter: blur(5px); overflow-y: auto; }
.coa-checkout-dialog { width: min(100%, 760px); max-height: min(92vh, 900px); overflow: auto; color: #182733; background: #faf7f0; border: 1px solid rgba(199, 157, 72, .48); border-radius: 18px; box-shadow: 0 26px 90px rgba(0, 0, 0, .32); }
.coa-checkout-header { position: sticky; top: 0; z-index: 1; display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; padding: 24px 28px 20px; background: #faf7f0; border-bottom: 1px solid rgba(6, 26, 71, .12); }
.coa-checkout-kicker { margin: 0 0 7px; color: #8a6a25; font-size: 10px; font-weight: 700; letter-spacing: .17em; text-transform: uppercase; }
.coa-checkout-header h2 { margin: 0; color: #061a47; font: 400 clamp(26px, 4vw, 36px)/1.1 'DM Serif Display', Georgia, serif; }
.coa-checkout-close { display: grid; flex: 0 0 42px; width: 42px; height: 42px; place-items: center; border: 1px solid rgba(6, 26, 71, .18); border-radius: 50%; color: #061a47; background: transparent; font: 400 27px/1 'DM Sans', sans-serif; cursor: pointer; }
.coa-checkout-close:hover, .coa-checkout-close:focus-visible { background: #f1e9de; outline: 2px solid #c79d48; outline-offset: 2px; }
.coa-checkout-content { padding: 22px 28px 28px; }
.coa-checkout-intro { margin: 0 0 18px; color: #34322d; font-size: 14px; line-height: 1.6; }
.coa-checkout-books { display: grid; gap: 12px; }
.coa-checkout-book { padding: 15px 17px 12px; border: 1px solid rgba(6, 26, 71, .13); border-radius: 12px; background: #fffdf9; }
.coa-checkout-book__title { margin: 0 0 10px; color: #061a47; font: 400 21px/1.2 'DM Serif Display', Georgia, serif; }
.coa-checkout-edition { display: grid; grid-template-columns: 1fr auto 78px; align-items: center; gap: 12px; min-height: 41px; border-top: 1px solid rgba(6, 26, 71, .08); color: #34322d; font-size: 14px; }
.coa-checkout-edition__price { color: #5f4b20; font-weight: 600; }
.coa-checkout-edition input { width: 78px; min-height: 34px; box-sizing: border-box; padding: 5px 8px; border: 1px solid rgba(6, 26, 71, .24); border-radius: 7px; color: #061a47; background: #fff; font: 600 14px 'DM Sans', sans-serif; text-align: center; }
.coa-checkout-edition input:focus, .coa-checkout-destination select:focus { outline: 2px solid #c79d48; outline-offset: 2px; }
.coa-checkout-destination { margin-top: 18px; }
.coa-checkout-destination[hidden] { display: none; }
.coa-checkout-destination label { display: block; margin: 0 0 7px; color: #061a47; font-size: 13px; font-weight: 700; }
.coa-checkout-destination select { width: 100%; min-height: 44px; padding: 9px 12px; border: 1px solid rgba(6, 26, 71, .24); border-radius: 8px; color: #182733; background: #fff; font: 14px 'DM Sans', sans-serif; }
.coa-checkout-destination-note { margin: 8px 0 0; color: #737878; font-size: 12px; line-height: 1.5; }
.coa-checkout-summary { margin-top: 18px; padding: 14px 16px; border-radius: 10px; background: #f1e9de; }
.coa-checkout-summary__heading { margin: 0 0 7px; color: #061a47; font-size: 12px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }
.coa-checkout-summary__row { display: flex; justify-content: space-between; gap: 20px; padding: 5px 0; color: #34322d; font-size: 14px; }
.coa-checkout-summary__row strong { color: #061a47; font-variant-numeric: tabular-nums; }
.coa-checkout-summary__total { margin-top: 5px; padding-top: 10px; border-top: 1px solid rgba(6, 26, 71, .18); font-size: 16px; font-weight: 700; }
.coa-checkout-error { margin: 12px 0 0; padding: 10px 12px; border-radius: 8px; color: #7d2418; background: #fbe6df; font-size: 13px; line-height: 1.45; }
.coa-checkout-error[hidden] { display: none; }
.coa-checkout-actions { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-top: 18px; }
.coa-checkout-submit { min-height: 48px; padding: 12px 20px; border: 0; border-radius: 8px; color: #fff; background: #061a47; font: 700 14px 'DM Sans', sans-serif; cursor: pointer; transition: background .15s ease, transform .15s ease; }
.coa-checkout-submit:hover:not(:disabled) { background: #12377f; transform: translateY(-1px); }
.coa-checkout-submit:focus-visible { outline: 2px solid #c79d48; outline-offset: 3px; }
.coa-checkout-submit:disabled { cursor: not-allowed; opacity: .48; }
.coa-checkout-secure { color: #737878; font-size: 11px; text-align: right; }
.coa-checkout-digital-note { margin: 13px 0 0; color: #737878; font-size: 11px; line-height: 1.5; }
.coa-checkout-status { position: fixed; top: 14px; left: 50%; z-index: 2147483001; display: flex; align-items: center; gap: 16px; width: min(calc(100% - 28px), 720px); box-sizing: border-box; padding: 14px 16px; transform: translateX(-50%); border: 1px solid rgba(199, 157, 72, .55); border-radius: 10px; color: #061a47; background: #faf7f0; box-shadow: 0 8px 30px rgba(0, 0, 0, .18); font-size: 13px; line-height: 1.5; }
.coa-checkout-status--cancel { border-color: rgba(115, 120, 120, .4); }
.coa-checkout-status__close { margin-left: auto; border: 0; color: #061a47; background: transparent; font: 600 12px 'DM Sans', sans-serif; cursor: pointer; }
.coa-checkout-toast { position: fixed; right: 20px; bottom: 20px; z-index: 2147483001; max-width: 420px; padding: 14px 18px; border-radius: 10px; color: #fff; background: #061a47; box-shadow: 0 10px 35px rgba(0, 0, 0, .22); font-size: 14px; }
@media (max-width: 600px) {
  .coa-checkout-overlay { padding: 8px; align-items: end; }
  .coa-checkout-dialog { width: 100%; max-height: 94vh; border-radius: 15px 15px 9px 9px; }
  .coa-checkout-header { padding: 19px 17px 15px; }
  .coa-checkout-content { padding: 17px 16px 22px; }
  .coa-checkout-book { padding: 13px 12px 10px; }
  .coa-checkout-book__title { font-size: 19px; }
  .coa-checkout-edition { grid-template-columns: 1fr auto 68px; gap: 8px; font-size: 13px; }
  .coa-checkout-edition input { width: 68px; }
  .coa-checkout-actions { align-items: stretch; flex-direction: column; }
  .coa-checkout-submit { width: 100%; }
  .coa-checkout-secure { text-align: center; }
}