.buy-page { background: var(--paper); }
.buy-page [hidden] { display: none !important; }
.buy-content { padding-block: 48px 96px; scroll-margin-top: 96px; }
.buy-intro {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px 32px;
  margin-bottom: 48px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--line);
}
.buy-intro .eyebrow { margin: 0 0 10px; }
.buy-intro h1 {
  margin: 0;
  font-size: clamp(32px, 4vw, 56px);
  line-height: 1.12;
  letter-spacing: -.045em;
}
.buy-intro h1 + p { margin: 16px 0 0; color: var(--ink); font-size: 16px; line-height: 1.8; }
.buy-kit-price { display: flex; align-items: center; gap: 12px; margin: 0; }
.buy-kit-price strong { font: 500 36px/1.1 var(--font-display); letter-spacing: -.04em; font-variant-numeric: tabular-nums; }
.buy-kit-price span, .buy-badge {
  padding: 3px 0 3px 12px;
  border-left: 1px solid var(--line);
  background: transparent;
  font-size: 13px;
  font-weight: 500;
}
.buy-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(340px, .8fr);
  align-items: start;
  gap: clamp(32px, 5vw, 64px);
}
.buy-gallery { position: sticky; top: 104px; min-width: 0; }
.buy-photo {
  margin: 0;
  overflow: hidden;
  background: var(--panel);
  border-radius: 0;
}
.buy-photo img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: contain;
}
.buy-photo figcaption {
  padding: 16px 0;
  border-top: 1px solid var(--line);
  text-align: left;
  color: var(--muted);
  font-size: 13px;
}
.buy-thumbs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 112px));
  gap: 12px;
  margin-top: 16px;
}
.buy-thumbs button {
  padding: 0 0 6px;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}
.buy-thumbs button[aria-pressed=true] { border-color: var(--accent); color: var(--ink); }
.buy-thumbs img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 0;
}
.buy-thumbs span { display: block; padding-block: 3px 1px; }
.buy-panel { min-width: 0; }
.buy-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 0 0 32px;
  padding: 0;
  list-style: none;
}
.buy-steps li {
  padding-top: 8px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}
.buy-steps li[aria-current=step] { border-color: var(--accent); color: var(--ink); font-weight: 500; }
.buy-step h2 {
  margin: 0;
  font-size: 28px;
  line-height: 1.2;
  letter-spacing: -.035em;
  scroll-margin-top: 92px;
}
.buy-description { margin: 12px 0 24px; color: var(--ink); font-size: 16px; line-height: 1.8; }
.buy-step fieldset { min-width: 0; margin: 0; padding: 0; border: 0; }
.buy-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}
.buy-option {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  margin-bottom: 0;
  padding: 20px 0;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  cursor: pointer;
}
.buy-option:first-of-type { border-top: 1px solid var(--line); }
.buy-option:hover { background: var(--panel); }
.buy-option:has(input:checked) { border-bottom-color: var(--accent); background: transparent; }
.buy-option input { width: 19px; height: 19px; margin: 0; accent-color: var(--accent); cursor: inherit; }
.buy-option strong { font-size: 16px; font-weight: 500; }
.buy-option small { display: block; margin-top: 4px; color: var(--muted); font-size: 13px; line-height: 1.6; }
.buy-extra-price { font-size: 14px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.buy-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.buy-fields label { min-width: 0; font-size: 14px; font-weight: 500; }
.buy-fields label small { color: var(--muted); font-weight: 400; }
.buy-field-wide { grid-column: 1 / -1; }
.buy-fields input {
  display: block;
  width: 100%;
  min-height: 48px;
  margin-top: 4px;
  padding: 8px 11px;
  border: 1px solid var(--line);
  border-radius: 0;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 16px;
  font-weight: 400;
}
.buy-review, .buy-totals { margin: 16px 0; }
.buy-review > div, .buy-totals > div {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 14px;
  padding: 6px 0;
}
.buy-review { padding: 10px 0; border-block: 1px solid var(--line); background: transparent; font-size: 14px; }
.buy-review dt, .buy-totals > div:first-child { color: var(--muted); }
.buy-review dd, .buy-totals dd { margin: 0; overflow-wrap: anywhere; text-align: right; }
.buy-subtotal { border-top: 1px solid var(--line); font-weight: 500; }
.buy-subtotal output { font-size: 30px; line-height: 1.25; font-variant-numeric: tabular-nums; }
.buy-actions { display: flex; gap: 8px; }
.buy-actions .button { justify-content: center; min-height: 48px; font-size: 15px; padding: 12px 24px; }
.buy-next { flex: 1; }
.buy-actions .button:disabled { color: #61636a; background: #ececea; cursor: not-allowed; }
.buy-note { margin: 12px 0 0; color: var(--muted); font-size: 14px; line-height: 1.8; }
.buy-note:empty { display: none; }
.buy-alternative { margin: 12px 0 0; text-align: center; color: var(--muted); font-size: 13px; }
.buy-alternative a { display: inline-block; padding: 6px 0; text-decoration: underline; text-underline-offset: 4px; }
.buy-alternative a:hover { color: var(--accent); }
.buy-dialog {
  box-sizing: border-box;
  width: min(420px, calc(100% - 32px));
  max-height: calc(100% - 32px);
  padding: clamp(24px, 5vw, 32px);
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
}
.buy-dialog::backdrop { background: #15171b91; }
.buy-dialog h2 { margin: 0; font-size: 22px; }
.buy-dialog p { margin: 16px 0 24px; color: var(--ink); font-size: 16px; line-height: 1.8; }
.buy-dialog .buy-actions { justify-content: flex-end; flex-wrap: wrap; }
.buy-badge { display: inline-block; margin: 0 0 16px; padding: 0 0 0 10px; border-left: 2px solid #a27638; color: #765a32; background: transparent; }
.buy-receipt-actions { flex-wrap: wrap; }
.buy-receipt-tools { margin-block: 16px; }
.buy-receipt-tools .button { padding: 10px 14px; font-size: 14px; }
.buy-receipt-hint { margin-top: 20px; }
.buy-receipt .order-shipping { margin-top: 24px; padding-top: 24px; border-top: 1px solid var(--line); }
.buy-receipt .customer-shipping-title { margin: 0 0 14px; font-size: 18px; font-weight: 500; }
.buy-receipt .order-shipping-facts { margin: 0 0 16px; font-size: 14px; }
.buy-receipt .order-shipping-facts > div { display: grid; grid-template-columns: 80px minmax(0, 1fr); gap: 12px; margin-block: 9px; }
.buy-receipt .order-shipping-facts dt { color: var(--muted); }
.buy-receipt .order-shipping-facts dd { margin: 0; overflow-wrap: anywhere; }
.buy-receipt .order-shipping-tracking { font-family: var(--font-mono); }
.buy-receipt .order-shipping-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.buy-receipt .order-shipping-actions .button { min-height: 44px; padding: 10px 14px; font-size: 14px; }
.buy-receipt .order-shipping-note, .buy-receipt .order-shipping-feedback { margin: 12px 0 0; color: var(--muted); font-size: 14px; line-height: 1.8; }
.buy-receipt .order-shipping-feedback:empty { display: none; }

@media (max-width: 760px) {
  .buy-content { padding-block: 30px 46px; }
  .buy-intro { margin-bottom: 22px; }
  .buy-intro h1 + p { font-size: 15px; }
  .buy-kit-price strong { font-size: 30px; }
  .buy-grid { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .buy-gallery { position: static; }
  .buy-steps { margin-bottom: 20px; }
  .buy-step h2 { font-size: 24px; scroll-margin-top: 80px; }
  .buy-option { gap: 12px; padding: 16px 0; font-size: 15px; }
}

.buy-totals { padding-block: 10px; }
.buy-totals > .buy-subtotal { padding-top: 15px; margin-top: 7px; }
.buy-fields input:hover { border-color: #91968f; }
.buy-fields input:focus-visible { outline-width: 1px; }
.buy-thumbs button:hover { border-bottom-color: var(--accent); }
.buy-intro h1, .buy-step h2 { font-weight: 500; }

@media (max-width: 440px) {
  .buy-page .topbar nav .buy-replication-link { display: none; }
  .buy-dialog .buy-actions { flex-direction: column; align-items: stretch; }
  .buy-dialog .button { width: 100%; }
}