:root {
  --ink: #111111;
  --muted: #6b6b6b;
  --line: #d9d9d7;
  --soft-line: #e8e8e6;
  --card: #f5f5f3;
  --white: #ffffff;
  --green: #177a45;
  --green-soft: #eef8f1;
  --amber: #8a5a12;
  --amber-soft: #fff8e8;
  --radius: 16px;
  --shell: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

button,
input,
textarea,
select {
  font: inherit;
}

a {
  color: inherit;
}

.shell {
  width: min(calc(100% - 40px), var(--shell));
  margin-inline: auto;
}

.site-header {
  border-bottom: 1px solid var(--soft-line);
}

.header-inner,
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -.01em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border: 1px solid var(--ink);
  border-radius: 50%;
  font-size: 13px;
}

.network-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #454545;
  font-size: 12px;
  padding: 7px 11px;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
}

.hero {
  padding-block: 108px 68px;
  text-align: center;
}

.eyebrow,
.section-label {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .11em;
  text-transform: uppercase;
}

.hero h1,
.product-info h1,
.checkout h1 {
  margin: 0;
  font-size: clamp(42px, 6vw, 74px);
  font-weight: 650;
  letter-spacing: -.055em;
  line-height: .98;
}

.hero-copy {
  max-width: 650px;
  margin: 26px auto 0;
  color: var(--muted);
  font-size: 17px;
}

.products {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.product-card {
  position: relative;
  display: flex;
  min-height: 510px;
  flex-direction: column;
  gap: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  color: var(--ink);
  padding: 30px;
  text-decoration: none;
  transition: border-color 160ms ease, background-color 160ms ease;
}

.product-card:hover,
.product-card:focus-visible {
  border-color: #8e8e89;
  background: #f1f1ef;
  outline: none;
}

.product-card.recommended {
  border-color: var(--ink);
}

.card-topline {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.product-code,
.mini-product {
  display: grid;
  flex: 0 0 auto;
  width: 58px;
  height: 58px;
  place-items: center;
  border: 1px solid #bdbdb9;
  border-radius: 50%;
  background: var(--white);
  font-size: 20px;
  font-weight: 650;
}

.recommended-label,
.discount,
.tag {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  border: 1px solid var(--ink);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .025em;
  line-height: 1;
  padding: 7px 10px;
}

.product-card h2 {
  margin: 0 0 10px;
  font-size: 30px;
  letter-spacing: -.035em;
}

.card-description {
  max-width: 410px;
  margin: 0;
  color: var(--muted);
}

.price-row,
.detail-price {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px;
}

.price-row strong {
  font-size: 30px;
  letter-spacing: -.04em;
}

.old-price {
  color: #8a8a85;
  text-decoration: line-through;
}

.discount {
  border-color: #b8d9c4;
  background: var(--green-soft);
  color: var(--green);
}

.benefit-list {
  display: grid;
  gap: 11px;
  margin: 0;
  padding: 0;
  color: #343434;
  font-size: 14px;
  list-style: none;
}

.benefit-list li {
  position: relative;
  padding-left: 23px;
}

.benefit-list li::before {
  position: absolute;
  left: 0;
  content: "✓";
  color: var(--green);
  font-weight: 800;
}

.card-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  border-top: 1px solid var(--line);
  padding-top: 20px;
  font-size: 14px;
  font-weight: 700;
}

.card-cta span {
  font-size: 20px;
  transition: transform 160ms ease;
}

.product-card:hover .card-cta span {
  transform: translateX(4px);
}

.trust-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-block: 84px 110px;
  border-block: 1px solid var(--soft-line);
}

.trust-row div {
  display: grid;
  gap: 3px;
  padding: 25px;
  text-align: center;
}

.trust-row div + div {
  border-left: 1px solid var(--soft-line);
}

.trust-row strong {
  font-size: 13px;
}

.trust-row span {
  color: var(--muted);
  font-size: 12px;
}

.site-footer {
  border-top: 1px solid var(--soft-line);
}

.footer-inner {
  color: var(--muted);
  font-size: 12px;
}

.footer-inner p {
  margin: 0;
}

.product-detail {
  padding-block: 44px 110px;
}

.back-link {
  display: inline-flex;
  margin-bottom: 42px;
  color: var(--muted);
  font-size: 13px;
  text-decoration: none;
}

.back-link:hover {
  color: var(--ink);
}

.product-layout {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
  gap: clamp(48px, 8vw, 110px);
  align-items: center;
}

.product-visual {
  display: grid;
  min-height: 570px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.product-visual span {
  display: grid;
  width: 156px;
  height: 156px;
  place-items: center;
  border: 1px solid #a7a7a2;
  border-radius: 50%;
  background: var(--white);
  font-size: 62px;
  font-weight: 600;
  letter-spacing: -.05em;
}

.product-visual small {
  position: absolute;
  align-self: end;
  margin-bottom: 34px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.product-info h1 {
  margin-block: 20px;
  font-size: clamp(42px, 5vw, 62px);
}

.product-lead {
  max-width: 540px;
  margin: 0 0 30px;
  color: var(--muted);
  font-size: 17px;
}

.detail-price {
  padding-block: 8px 30px;
  border-bottom: 1px solid var(--soft-line);
}

.detail-price strong {
  font-size: 38px;
  letter-spacing: -.045em;
}

.detail-benefits {
  gap: 13px;
  margin-block: 30px;
  font-size: 15px;
}

.purchase-form {
  display: grid;
  grid-template-columns: auto 138px 1fr;
  gap: 12px;
  align-items: center;
  border-top: 1px solid var(--soft-line);
  padding-top: 28px;
}

.purchase-form > label {
  color: var(--muted);
  font-size: 13px;
}

.quantity-control {
  display: grid;
  grid-template-columns: 38px 1fr 38px;
  height: 48px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.quantity-control button {
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.quantity-control button:hover {
  color: var(--ink);
}

.quantity-control input {
  width: 100%;
  border: 0;
  outline: none;
  background: transparent;
  text-align: center;
  -moz-appearance: textfield;
}

.quantity-control input::-webkit-outer-spin-button,
.quantity-control input::-webkit-inner-spin-button {
  margin: 0;
  -webkit-appearance: none;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--ink);
  border-radius: 8px;
  padding: 12px 18px;
  cursor: pointer;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
}

.button-primary {
  background: var(--ink);
  color: var(--white);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: #2d2d2d;
}

.button-wide {
  width: 100%;
}

.microcopy,
.expiry {
  margin: 13px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.notice,
.payment-warning {
  border: 1px solid #e4c989;
  border-radius: 8px;
  background: var(--amber-soft);
  color: var(--amber);
  padding: 14px 16px;
  font-size: 13px;
}

.checkout {
  padding-block: 70px 110px;
}

.checkout-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 46px;
}

.checkout h1 {
  font-size: clamp(40px, 5vw, 60px);
}

.order-number {
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  padding: 8px 11px;
}

.checkout-grid {
  display: grid;
  grid-template-columns: minmax(270px, .72fr) minmax(0, 1.28fr);
  gap: 20px;
  align-items: start;
}

.order-summary,
.payment-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
}

.order-summary {
  background: var(--card);
}

.summary-product {
  display: flex;
  align-items: center;
  gap: 15px;
  padding-bottom: 25px;
  border-bottom: 1px solid var(--line);
}

.mini-product {
  width: 52px;
  height: 52px;
  font-size: 17px;
}

.summary-product div:last-child {
  display: grid;
}

.summary-product span {
  color: var(--muted);
  font-size: 12px;
}

.summary-lines {
  display: grid;
  gap: 14px;
  margin: 24px 0;
}

.summary-lines div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.summary-lines dt,
.summary-lines dd {
  margin: 0;
  font-size: 13px;
}

.summary-lines dt {
  color: var(--muted);
}

.summary-total {
  margin-top: 4px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.summary-total dt,
.summary-total dd {
  color: var(--ink);
  font-size: 15px;
  font-weight: 800;
}

.summary-note {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.payment-panel {
  background: var(--white);
}

.payment-status {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-bottom: 27px;
  border-bottom: 1px solid var(--soft-line);
  padding-bottom: 24px;
}

.payment-status > div {
  display: grid;
}

.payment-status strong {
  font-size: 14px;
}

.payment-status span:last-child {
  color: var(--muted);
  font-size: 12px;
}

.status-icon {
  width: 11px;
  height: 11px;
  border: 2px solid #c49738;
  border-radius: 50%;
  background: var(--amber-soft);
}

.status-paid .status-icon,
.status-fulfilled .status-icon {
  border-color: var(--green);
  background: var(--green);
}

.payment-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-bottom: 26px;
  border-bottom: 1px solid var(--line);
}

.payment-tabs button {
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--muted);
  padding: 11px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
}

.payment-tabs button.active {
  border-color: var(--ink);
  color: var(--ink);
}

.tab-panel h2,
.success-block h2,
.expired-block h2 {
  margin: 0 0 8px;
  font-size: 22px;
  letter-spacing: -.025em;
}

.tab-panel > p,
.success-block p,
.expired-block p {
  margin: 0 0 19px;
  color: var(--muted);
  font-size: 14px;
}

.wallet-message {
  min-height: 18px;
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.payment-details {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 22px;
  margin-block: 30px;
  border-block: 1px solid var(--soft-line);
  padding-block: 28px;
}

.qr-wrap {
  display: grid;
  width: 150px;
  height: 150px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
}

.qr-wrap canvas {
  display: block;
  max-width: 100%;
  height: auto !important;
}

.payment-data {
  display: grid;
  gap: 18px;
  margin: 0;
}

.payment-data > div {
  min-width: 0;
}

.payment-data dt {
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.payment-data dd {
  margin: 0;
  font-size: 13px;
}

.payment-data code {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tag {
  margin-left: 5px;
  border-color: var(--line);
  padding: 4px 6px;
  font-size: 9px;
}

.copy-row {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.copy-button {
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--white);
  padding: 5px 8px;
  cursor: pointer;
  font-size: 11px;
}

.copy-button:hover {
  border-color: #92928e;
}

.amount-value strong {
  font-size: 20px;
  letter-spacing: -.025em;
}

.success-block,
.expired-block {
  padding: 25px 0 4px;
  text-align: center;
}

.success-block .button,
.expired-block .button {
  margin-top: 15px;
}

.empty-state {
  min-height: 62vh;
  padding-block: 110px;
}

.empty-state h1 {
  font-size: 44px;
  letter-spacing: -.04em;
}

.text-link {
  color: var(--muted);
}

@media (max-width: 840px) {
  .hero {
    padding-block: 78px 50px;
  }

  .products,
  .product-layout,
  .checkout-grid {
    grid-template-columns: 1fr;
  }

  .product-card {
    min-height: 470px;
  }

  .product-layout {
    gap: 44px;
  }

  .product-visual {
    min-height: 420px;
  }

  .product-info {
    max-width: 650px;
  }

  .order-summary {
    order: 2;
  }
}

@media (max-width: 620px) {
  .shell {
    width: min(calc(100% - 28px), var(--shell));
  }

  .header-inner {
    min-height: 64px;
  }

  .network-pill {
    border: 0;
    padding: 0;
    font-size: 10px;
  }

  .hero {
    padding-block: 64px 40px;
    text-align: left;
  }

  .hero h1 {
    font-size: 46px;
  }

  .hero-copy {
    margin-left: 0;
    font-size: 15px;
  }

  .products {
    gap: 14px;
  }

  .product-card {
    min-height: 0;
    gap: 24px;
    padding: 22px;
  }

  .trust-row {
    grid-template-columns: 1fr;
    margin-block: 60px 75px;
  }

  .trust-row div + div {
    border-top: 1px solid var(--soft-line);
    border-left: 0;
  }

  .footer-inner {
    min-height: 90px;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    text-align: center;
  }

  .product-detail {
    padding-block: 28px 75px;
  }

  .back-link {
    margin-bottom: 26px;
  }

  .product-visual {
    min-height: 320px;
  }

  .product-visual span {
    width: 120px;
    height: 120px;
    font-size: 48px;
  }

  .purchase-form {
    grid-template-columns: auto 1fr;
  }

  .purchase-form .button {
    grid-column: 1 / -1;
  }

  .checkout {
    padding-block: 48px 75px;
  }

  .checkout-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 22px;
    margin-bottom: 34px;
  }

  .order-summary,
  .payment-panel {
    border-radius: 12px;
    padding: 20px;
  }

  .payment-details {
    grid-template-columns: 1fr;
  }

  .qr-wrap {
    margin-inline: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}