@font-face {
  font-family: "Geist";
  src: url("https://cdn.jsdelivr.net/npm/@fontsource/geist-sans@5.2.5/files/geist-sans-latin-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Geist";
  src: url("https://cdn.jsdelivr.net/npm/@fontsource/geist-sans@5.2.5/files/geist-sans-latin-500-normal.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Geist";
  src: url("https://cdn.jsdelivr.net/npm/@fontsource/geist-sans@5.2.5/files/geist-sans-latin-600-normal.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

:root {
  --checkout-bg: #07090e;
  --checkout-panel: #0d1119;
  --checkout-card: rgba(255, 255, 255, 0.025);
  --checkout-card-strong: rgba(255, 255, 255, 0.04);
  --checkout-line: rgba(255, 255, 255, 0.075);
  --checkout-text: #f8fafc;
  --checkout-muted: #9299a7;
  --checkout-soft: rgba(74, 137, 255, 0.11);
  --checkout-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
}

html { color-scheme: dark; }

.premium-checkout-page,
.premium-card-page {
  --bg: var(--checkout-bg);
  --surface: rgba(13, 17, 25, 0.94);
  --surface-2: rgba(255, 255, 255, 0.035);
  --border: var(--checkout-line);
  --border-strong: rgba(74, 137, 255, 0.28);
  --text: var(--checkout-text);
  --muted: var(--checkout-muted);
  --green: #34d399;
  --font: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  min-height: 100vh;
  padding: 28px 24px 52px;
  background:
    radial-gradient(circle at 82% -10%, rgba(74, 137, 255, 0.12), transparent 30%),
    radial-gradient(circle at -5% 95%, rgba(27, 82, 180, 0.08), transparent 28%),
    var(--checkout-bg);
}

.premium-checkout-page [hidden],
.premium-card-page [hidden] {
  display: none !important;
}

.premium-checkout-page .shop-ambient__grid,
.premium-card-page .shop-ambient__grid {
  opacity: 0.3;
  background-size: 54px 54px;
}

.premium-checkout-page .shop-ambient__orb,
.premium-card-page .shop-ambient__orb {
  opacity: 0.12;
}

.premium-checkout-page .shop-wrap,
.premium-card-page .shop-wrap {
  width: min(100%, 1080px);
  max-width: none;
}

.premium-checkout-page .shop-header,
.premium-card-page .shop-header {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  min-height: 42px;
  align-items: center;
  margin-bottom: 22px;
}

.premium-checkout-page .shop-back,
.premium-card-page .shop-back {
  width: fit-content;
  padding: 8px 10px 8px 8px;
  margin-left: -8px;
  border-radius: 9px;
  color: var(--checkout-muted);
  font-size: 13px;
  transition: color 150ms ease, background 150ms ease, transform 150ms ease;
}

.premium-checkout-page .shop-back:hover,
.premium-card-page .shop-back:hover {
  transform: translateX(-2px);
  background: rgba(255, 255, 255, 0.04);
  color: var(--checkout-text);
}

.premium-checkout-page .shop-brand,
.premium-card-page .shop-brand {
  gap: 10px;
  color: var(--checkout-text);
  font-family: var(--font);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.015em;
}

.premium-checkout-page .shop-brand .brand-logo,
.premium-card-page .shop-brand .brand-logo {
  width: 35px;
  height: 35px;
  padding: 4px;
  border: 1px solid rgba(74, 137, 255, 0.18);
  border-radius: 10px;
  background: linear-gradient(145deg, rgba(74, 137, 255, 0.16), rgba(5, 8, 14, 0.55));
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.08);
}

.premium-checkout-page .shop-brand > span,
.premium-card-page .shop-brand > span {
  display: flex;
  flex-direction: column;
}

.premium-checkout-page .shop-brand small,
.premium-card-page .shop-brand small {
  margin-top: 1px;
  color: var(--checkout-muted);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.premium-theme-toggle {
  display: grid;
  width: 34px;
  height: 34px;
  justify-self: end;
  place-items: center;
  border: 1px solid var(--checkout-line);
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.025);
  color: var(--checkout-muted);
  cursor: pointer;
  transition: transform 150ms ease, color 150ms ease, background 150ms ease;
}

.premium-theme-toggle:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.055);
  color: var(--checkout-text);
}

.premium-theme-toggle svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.premium-theme-toggle .theme-moon { display: none; }

.premium-checkout-page .checkout-progress,
.premium-card-page .checkout-progress {
  width: min(100%, 440px);
  margin: 0 auto 26px;
  padding: 0;
  border: 0;
  background: transparent;
}

.premium-checkout-page .checkout-progress__dot,
.premium-card-page .checkout-progress__dot {
  width: 27px;
  height: 27px;
  border-width: 1px;
  background: #10141d;
  font-size: 11px;
}

.premium-checkout-page .checkout-progress__step--active .checkout-progress__dot,
.premium-card-page .checkout-progress__step--active .checkout-progress__dot {
  box-shadow: 0 0 0 5px rgba(74, 137, 255, 0.08), 0 0 22px rgba(74, 137, 255, 0.18);
}

.premium-checkout-page .checkout-progress__line,
.premium-card-page .checkout-progress__line {
  max-width: 76px;
  height: 1px;
  margin-bottom: 18px;
}

.premium-checkout-page .checkout-progress__label,
.premium-card-page .checkout-progress__label {
  font-size: 9px;
  font-weight: 550;
  letter-spacing: 0.08em;
}

/* Shared two-column checkout shell */
.premium-checkout-page #step-product,
.premium-card-page #card-pay-panel {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.84fr) minmax(0, 1.16fr);
  column-gap: 0;
  overflow: hidden;
  padding: 0;
  border-color: rgba(255, 255, 255, 0.075);
  border-radius: 22px;
  background: rgba(9, 12, 18, 0.94);
  box-shadow: var(--checkout-shadow);
  backdrop-filter: blur(24px);
}

.premium-checkout-page #step-product::before,
.premium-card-page #card-pay-panel::before {
  position: absolute;
  inset: 0 auto 0 0;
  z-index: 0;
  width: 42%;
  border-right: 1px solid var(--checkout-line);
  background:
    radial-gradient(100% 58% at 0% 0%, rgba(74, 137, 255, 0.2), transparent 68%),
    radial-gradient(80% 50% at 100% 100%, rgba(42, 102, 210, 0.11), transparent 72%),
    linear-gradient(150deg, rgba(255, 255, 255, 0.018), transparent 48%),
    #0d1119;
  content: "";
}

.premium-checkout-page #step-product > *,
.premium-card-page #card-pay-panel > * {
  position: relative;
  z-index: 1;
}

.premium-checkout-page #step-product > .product-hero {
  grid-column: 1;
  grid-row: 1;
  margin: 0;
  padding: 28px 38px 18px;
  min-height: 0;
}

/* Only reserve tall space when a product image is actually shown */
.premium-checkout-page #step-product > .product-hero:has(.product-hero__art:not([hidden])) {
  padding: 42px 38px 20px;
  min-height: 360px;
}

.premium-checkout-page .product-hero__art {
  position: absolute;
  top: 34px;
  right: 28px;
  z-index: 2;
  width: min(48%, 360px);
  aspect-ratio: 1721 / 914;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(74, 137, 255, 0.22);
  box-shadow:
    0 18px 42px rgba(0, 0, 0, 0.42),
    0 0 0 1px rgba(255, 255, 255, 0.03) inset;
}

.premium-checkout-page .product-hero__art img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: none !important;
}

.premium-checkout-page .product-hero:has(.product-hero__art:not([hidden])) .product-hero__inner {
  padding-right: min(52%, 390px);
}

.premium-checkout-page #step-product > .checkout-product-preview {
  grid-column: 2;
  grid-row: 1;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 30px 38px 0;
}

.premium-checkout-page .checkout-preview-stage {
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid rgba(74, 137, 255, 0.2);
  border-radius: 16px;
  background: #080b12;
  box-shadow:
    0 20px 48px rgba(0, 0, 0, 0.38),
    0 0 30px rgba(74, 137, 255, 0.06);
}

.premium-checkout-page .checkout-preview-stage img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: none !important;
}

.premium-checkout-page .checkout-preview-picker {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 2px;
  scrollbar-width: none;
}

.premium-checkout-page .checkout-preview-picker::-webkit-scrollbar {
  display: none;
}

.premium-checkout-page .checkout-preview-thumb {
  position: relative;
  flex: 0 0 calc(33.333% - 7px);
  min-width: calc(33.333% - 7px);
  height: 72px;
  padding: 0;
  overflow: hidden;
  border: 2px solid rgba(74, 137, 255, 0.18);
  border-radius: 12px;
  background: #0d1118;
  cursor: pointer;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.premium-checkout-page .checkout-preview-thumb:hover {
  border-color: rgba(74, 137, 255, 0.45);
  transform: translateY(-1px);
}

.premium-checkout-page .checkout-preview-thumb.is-active {
  border-color: #4a89ff;
  box-shadow: 0 0 0 1px rgba(74, 137, 255, 0.35), 0 10px 24px rgba(74, 137, 255, 0.18);
}

.premium-checkout-page .checkout-preview-thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: none !important;
}

.premium-checkout-page .checkout-preview-thumb__label {
  position: absolute;
  left: 8px;
  bottom: 8px;
  z-index: 1;
  max-width: calc(100% - 16px);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding: 4px 8px;
  border-radius: 8px;
  background: rgba(15, 16, 22, 0.78);
  backdrop-filter: blur(6px);
  color: #fff;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  pointer-events: none;
}

.premium-checkout-page #step-product > .qty-selector {
  grid-column: 1;
  margin: 0 38px 16px;
}

.premium-checkout-page #step-product > .price-summary {
  grid-column: 1;
  margin: 0 38px 38px;
}

.premium-checkout-page #step-product > .checkout-section {
  grid-column: 2;
  margin: 0;
  padding: 18px 38px 0;
}

.premium-checkout-page #step-product > #coin-selection {
  padding-top: 14px;
}

.premium-checkout-page #step-product > .checkout-section--fields {
  margin: 14px 38px 0;
  padding: 14px 16px;
}

.premium-checkout-page #step-product > .checkout-trust {
  grid-column: 2;
  margin: 16px 38px 0;
}

.premium-checkout-page #step-product > .checkout-turnstile,
.premium-checkout-page #step-product > .cf-turnstile {
  grid-column: 2;
  width: 0;
  height: 0;
  margin: 0;
  min-height: 0;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

.premium-checkout-page #step-product > .shop-btn-pay {
  grid-column: 2;
  width: auto;
  margin: 16px 38px 0;
}

.premium-checkout-page #step-product > .shop-status {
  grid-column: 2;
  margin: 10px 38px 30px;
}

.premium-checkout-page .product-hero__border,
.premium-card-page .product-hero__border {
  display: none;
}

.premium-checkout-page .product-hero__inner,
.premium-card-page .product-hero__inner {
  height: 100%;
  margin: 0;
  padding: 0;
  border-radius: 0;
  background: transparent;
}

.premium-checkout-page .product-hero__badge,
.premium-card-page .product-hero__badge {
  margin-bottom: 14px;
  padding: 6px 10px;
  border-color: rgba(52, 211, 153, 0.14);
  background: rgba(52, 211, 153, 0.075);
  color: #5ee5b0;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.premium-checkout-page .product-hero:has(.product-hero__art:not([hidden])) .product-hero__badge {
  margin-bottom: 30px;
}

.premium-checkout-page .shop-step-label,
.premium-card-page .shop-step-label {
  color: var(--checkout-muted);
  font-family: var(--font);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.09em;
}

.premium-checkout-page .shop-product-name,
.premium-card-page .shop-product-name {
  margin-bottom: 9px;
  color: var(--checkout-text);
  font-family: var(--font);
  font-size: clamp(25px, 3vw, 34px);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.035em;
  text-shadow: none;
}

.premium-checkout-page .shop-product-desc,
.premium-card-page .shop-product-desc {
  color: var(--checkout-muted);
  font-size: 13px;
  font-weight: 400;
  line-height: 1.55;
}

.premium-checkout-page .shop-price {
  margin-top: 24px;
  background: linear-gradient(100deg, #fff 15%, #a8c6ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-family: var(--font);
  font-size: 34px;
  font-weight: 600;
  letter-spacing: -0.04em;
  text-shadow: none;
}

.premium-checkout-page .checkout-section__head,
.premium-card-page .checkout-section__head {
  margin-bottom: 10px;
}

.premium-checkout-page .checkout-section__icon,
.premium-card-page .checkout-section__icon {
  width: 16px;
  height: 16px;
  color: #76a6ff;
}

.premium-checkout-page .payment-methods,
.premium-checkout-page .coin-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  width: 100%;
  max-width: none;
}

.premium-checkout-page .pm-btn,
.premium-checkout-page .coin-btn {
  min-height: 64px;
  padding: 12px 14px;
  flex-direction: row;
  justify-content: flex-start;
  border-color: var(--checkout-line);
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.022);
  box-shadow: none;
  gap: 10px;
  transition: transform 150ms ease, border-color 150ms ease, background 150ms ease;
}

.premium-checkout-page .coin-btn {
  min-height: 56px;
  padding: 10px 14px;
  gap: 10px;
}

.premium-checkout-page .pm-btn .pm-logo,
.premium-checkout-page .pm-btn .pm-logo-color {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

.premium-checkout-page .pm-btn .pm-label {
  font-size: 13px;
  letter-spacing: 0;
  text-align: left;
}

.premium-checkout-page .coin-btn .coin-logo {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

.premium-checkout-page .coin-btn .coin-name {
  font-size: 13px;
  text-align: left;
}

.premium-checkout-page .coin-btn .coin-ticker {
  margin-left: auto;
  font-size: 11px;
}

.premium-checkout-page .pm-check {
  top: 8px;
  right: 8px;
}

.premium-checkout-page .pm-btn:hover,
.premium-checkout-page .coin-btn:hover {
  transform: translateY(-1px);
  border-color: rgba(74, 137, 255, 0.22);
  background: rgba(74, 137, 255, 0.055);
}

.premium-checkout-page .pm-selected,
.premium-checkout-page .coin-selected {
  border-color: rgba(74, 137, 255, 0.48);
  background: rgba(74, 137, 255, 0.09);
  box-shadow: inset 0 0 0 1px rgba(74, 137, 255, 0.08), 0 10px 25px rgba(20, 65, 145, 0.09);
}

.premium-checkout-page .checkout-section--fields {
  border-color: var(--checkout-line);
  border-radius: 13px;
  background: rgba(255, 255, 255, 0.018);
}

.premium-checkout-page .shop-input,
.premium-card-page .shop-input {
  border-color: var(--checkout-line);
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.025);
  color: var(--checkout-text);
  font-family: var(--font);
  font-weight: 400;
}

.premium-checkout-page .shop-input:focus,
.premium-card-page .shop-input:focus {
  border-color: rgba(74, 137, 255, 0.5);
  box-shadow: 0 0 0 3px rgba(74, 137, 255, 0.08);
}

.premium-checkout-page .checkout-trust,
.premium-card-page .checkout-trust {
  border-top-color: var(--checkout-line);
  color: var(--checkout-muted);
}

.premium-checkout-page .shop-btn-primary,
.premium-card-page .shop-btn-primary {
  min-height: 50px;
  border-radius: 11px;
  background: linear-gradient(135deg, #4a89ff, #3578df);
  font-family: var(--font);
  font-weight: 600;
  box-shadow: 0 12px 32px rgba(74, 137, 255, 0.2), inset 0 1px rgba(255, 255, 255, 0.14);
}

.premium-checkout-page .shop-btn-primary:hover,
.premium-card-page .shop-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 38px rgba(74, 137, 255, 0.27), inset 0 1px rgba(255, 255, 255, 0.16);
}

/* Payment instruction step */
.premium-checkout-page #step-payment,
.premium-checkout-page #step-status {
  width: min(100%, 640px);
  margin-inline: auto;
  border-color: var(--checkout-line);
  background:
    radial-gradient(circle at 50% 0%, rgba(74, 137, 255, 0.09), transparent 38%),
    rgba(10, 13, 20, 0.95);
  box-shadow: var(--checkout-shadow);
}

/* Card payment page */
.premium-card-page #card-pay-panel > .product-hero {
  grid-column: 1;
  grid-row: 1;
  margin: 0;
  padding: 42px 38px 18px;
}

.premium-card-page #card-pay-panel > .checkout-section:nth-of-type(1) {
  grid-column: 1;
  margin: 0;
  padding: 18px 38px;
}

.premium-card-page #card-pay-panel > .checkout-section:nth-of-type(2) {
  grid-column: 2;
  grid-row: 1 / span 3;
  margin: 0;
  padding: 42px 38px 18px;
}

.premium-card-page #card-pay-panel > .card-pay-amount {
  grid-column: 1;
  margin: 16px 38px 38px;
}

.premium-card-page #card-pay-panel > .checkout-trust {
  grid-column: 2;
  margin: 12px 38px 0;
}

.premium-card-page #card-pay-panel > .shop-btn-pay {
  grid-column: 2;
  width: auto;
  margin: 18px 38px 0;
}

.premium-card-page #card-pay-panel > .shop-status {
  grid-column: 2;
  margin: 10px 38px 30px;
}

.premium-card-page .card-pay-amount {
  align-items: flex-start;
  padding: 20px;
  border-color: rgba(74, 137, 255, 0.18);
  border-radius: 13px;
  background: rgba(74, 137, 255, 0.07);
  box-shadow: none;
}

.premium-card-page .card-pay-amount-label {
  color: var(--checkout-muted);
  font-size: 9px;
}

.premium-card-page .card-pay-amount-value {
  color: var(--checkout-text);
  font-family: var(--font);
  font-size: 30px;
  font-weight: 600;
  letter-spacing: -0.035em;
  text-shadow: none;
}

.premium-card-page .card-providers {
  min-height: 170px;
  justify-content: center;
  padding: 22px;
  border: 1px solid var(--checkout-line);
  border-radius: 13px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.015), rgba(255, 255, 255, 0.015)),
    repeating-linear-gradient(135deg, transparent 0 12px, rgba(255, 255, 255, 0.012) 12px 13px);
}

.premium-card-page .card-provider-row {
  border-width: 1px;
  border-color: rgba(74, 137, 255, 0.34);
  border-radius: 11px;
  background: rgba(74, 137, 255, 0.075);
  box-shadow: inset 0 0 0 1px rgba(74, 137, 255, 0.04);
}

.premium-card-page .card-provider-radio {
  border-color: #7aa7ff;
}

.premium-card-brands strong {
  display: inline-grid;
  height: 22px;
  min-width: 34px;
  padding: 0 6px;
  place-items: center;
  border: 1px solid var(--checkout-line);
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--checkout-text);
  font-size: 9px;
  letter-spacing: -0.02em;
}

.premium-provider-note {
  color: var(--checkout-muted);
  font-size: 11px;
  line-height: 1.5;
  text-align: center;
}

/* Light mode */
html.checkout-light {
  color-scheme: light;
  --checkout-bg: #f7f9fc;
  --checkout-panel: #eef3fb;
  --checkout-card: rgba(255, 255, 255, 0.75);
  --checkout-card-strong: rgba(15, 23, 42, 0.04);
  --checkout-line: rgba(15, 23, 42, 0.09);
  --checkout-text: #111827;
  --checkout-muted: #64748b;
  --checkout-shadow: 0 24px 60px rgba(40, 66, 106, 0.1);
}

.checkout-light .premium-checkout-page,
.checkout-light .premium-card-page {
  --bg: var(--checkout-bg);
  --surface: rgba(255, 255, 255, 0.9);
  --surface-2: rgba(15, 23, 42, 0.035);
  --text: var(--checkout-text);
  --muted: var(--checkout-muted);
  background:
    radial-gradient(circle at 82% -10%, rgba(74, 137, 255, 0.13), transparent 32%),
    #f7f9fc;
}

.checkout-light .premium-theme-toggle .theme-sun { display: none; }
.checkout-light .premium-theme-toggle .theme-moon { display: block; }

.checkout-light .premium-checkout-page #step-product,
.checkout-light .premium-card-page #card-pay-panel {
  border-color: rgba(15, 23, 42, 0.09);
  background: rgba(255, 255, 255, 0.82);
}

.checkout-light .premium-checkout-page #step-product::before,
.checkout-light .premium-card-page #card-pay-panel::before {
  border-right-color: rgba(15, 23, 42, 0.08);
  background:
    radial-gradient(100% 58% at 0% 0%, rgba(74, 137, 255, 0.18), transparent 68%),
    radial-gradient(80% 50% at 100% 100%, rgba(42, 102, 210, 0.08), transparent 72%),
    linear-gradient(150deg, rgba(255, 255, 255, 0.75), transparent 48%),
    #eef3fb;
}

.checkout-light .premium-checkout-page .checkout-progress__dot,
.checkout-light .premium-card-page .checkout-progress__dot {
  background: #fff;
}

.checkout-light .premium-checkout-page .shop-price {
  background: linear-gradient(100deg, #111827 15%, #315fae);
  -webkit-background-clip: text;
  background-clip: text;
}

.checkout-light .premium-checkout-page .pm-btn,
.checkout-light .premium-checkout-page .coin-btn,
.checkout-light .premium-checkout-page .checkout-section--fields,
.checkout-light .premium-card-page .card-providers {
  background-color: rgba(15, 23, 42, 0.025);
}

.checkout-light .premium-checkout-page .shop-input,
.checkout-light .premium-card-page .shop-input {
  background: white;
}

@media (max-width: 820px) {
  .premium-checkout-page,
  .premium-card-page {
    padding: 20px 14px 42px;
  }

  .premium-checkout-page .shop-header,
  .premium-card-page .shop-header {
    grid-template-columns: 1fr auto;
  }

  .premium-checkout-page .shop-brand,
  .premium-card-page .shop-brand {
    grid-column: 1 / -1;
    grid-row: 1;
    justify-self: center;
  }

  .premium-checkout-page .shop-back,
  .premium-card-page .shop-back,
  .premium-theme-toggle {
    position: relative;
    z-index: 2;
    grid-row: 1;
  }

  .premium-checkout-page #step-product,
  .premium-card-page #card-pay-panel {
    display: block;
  }

  .premium-checkout-page #step-product::before,
  .premium-card-page #card-pay-panel::before {
    inset: 0 0 auto;
    width: 100%;
    height: 100%;
    max-height: none;
    border-right: 0;
    border-bottom: 1px solid var(--checkout-line);
  }

  /* Tall top wash only when product art is present */
  .premium-checkout-page #step-product:has(.product-hero__art:not([hidden]))::before {
    height: 310px;
  }

  .premium-checkout-page #step-product > .product-hero,
  .premium-card-page #card-pay-panel > .product-hero {
    padding: 24px 26px 16px;
  }

  .premium-checkout-page #step-product > .product-hero:has(.product-hero__art:not([hidden])),
  .premium-card-page #card-pay-panel > .product-hero:has(.product-hero__art:not([hidden])) {
    padding: 34px 26px 22px;
  }

  .premium-checkout-page #step-product > .checkout-product-preview {
    margin: 8px 26px 0;
  }

  .premium-checkout-page #step-product > .qty-selector,
  .premium-checkout-page #step-product > .price-summary,
  .premium-card-page #card-pay-panel > .checkout-section:nth-of-type(1),
  .premium-card-page #card-pay-panel > .card-pay-amount {
    margin-right: 26px;
    margin-left: 26px;
  }

  .premium-checkout-page #step-product > .checkout-section,
  .premium-card-page #card-pay-panel > .checkout-section:nth-of-type(2) {
    padding: 16px 26px 0;
  }

  .premium-checkout-page #step-product:has(.product-hero__art:not([hidden])) > .checkout-section {
    padding-top: 30px;
  }

  .premium-checkout-page #step-product > .checkout-section--fields {
    margin: 26px 26px 0;
    padding: 18px;
  }

  .premium-checkout-page #step-product > .checkout-trust,
  .premium-card-page #card-pay-panel > .checkout-trust {
    margin-right: 26px;
    margin-left: 26px;
  }

  .premium-checkout-page #step-product > .shop-btn-pay,
  .premium-card-page #card-pay-panel > .shop-btn-pay {
    width: calc(100% - 52px);
    margin-right: 26px;
    margin-left: 26px;
  }

  .premium-checkout-page #step-product > .shop-status,
  .premium-card-page #card-pay-panel > .shop-status {
    margin-right: 26px;
    margin-bottom: 28px;
    margin-left: 26px;
  }
}

@media (max-width: 520px) {
  .premium-checkout-page .shop-back,
  .premium-card-page .shop-back {
    width: 34px;
    overflow: hidden;
    padding: 8px;
    white-space: nowrap;
  }

  .premium-checkout-page .shop-back svg,
  .premium-card-page .shop-back svg {
    flex: 0 0 auto;
  }

  .premium-checkout-page .checkout-progress__step,
  .premium-card-page .checkout-progress__step {
    min-width: 56px;
  }

  .premium-checkout-page .payment-methods,
  .premium-checkout-page .coin-grid {
    grid-template-columns: 1fr;
    max-width: none;
    gap: 6px;
  }

  .premium-checkout-page #step-product::before,
  .premium-card-page #card-pay-panel::before {
    height: 290px;
  }

  .premium-checkout-page .shop-product-name,
  .premium-card-page .shop-product-name {
    font-size: 25px;
  }
}

/* Email checkout gate */
.checkout-header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  justify-self: end;
}

.checkout-account-link {
  color: var(--checkout-muted, #9299a7);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
}

.checkout-account-link:hover {
  color: #4a89ff;
}

.email-gate {
  margin: 18px 0 28px;
}

.email-gate__card {
  border: 1px solid rgba(74, 137, 255, 0.22);
  background:
    radial-gradient(circle at 20% 0%, rgba(74, 137, 255, 0.16), transparent 45%),
    rgba(13, 17, 25, 0.92);
  border-radius: 20px;
  padding: 36px 28px;
  text-align: center;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
}

.email-gate__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  color: #fff;
  background: linear-gradient(135deg, #4a89ff, #1a62ff);
  box-shadow: 0 10px 30px rgba(74, 137, 255, 0.35);
}

.email-gate__card h2 {
  font-size: 24px;
  margin: 0 0 10px;
  letter-spacing: -0.03em;
}

.email-gate__card > p {
  color: var(--checkout-muted, #9299a7);
  font-size: 14px;
  line-height: 1.55;
  max-width: 420px;
  margin: 0 auto 22px;
}

.email-gate__form {
  max-width: 360px;
  margin: 0 auto;
  text-align: left;
  display: grid;
  gap: 12px;
}

.email-gate__form .shop-btn {
  width: 100%;
}

.shop-input-code {
  text-align: center;
  letter-spacing: 0.35em;
  font-size: 20px;
  font-weight: 700;
}

.email-gate__hint {
  margin: 0;
  color: var(--checkout-muted, #9299a7);
  font-size: 13px;
  text-align: center;
}

.email-gate__hint strong {
  color: var(--checkout-text, #f8fafc);
}

.email-gate__status {
  min-height: 18px;
  margin: 14px 0 0;
  font-size: 13px;
  color: var(--checkout-muted, #9299a7);
}

.email-gate__status.ok { color: #8fffab; }
.email-gate__status.err { color: #ff7b7b; }

.email-gate__account {
  display: inline-block;
  margin-top: 16px;
  color: var(--checkout-muted, #9299a7);
  font-size: 13px;
  text-decoration: none;
}

.email-gate__account:hover {
  color: #4a89ff;
}

.email-session-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 18px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(74, 137, 255, 0.16);
  background: rgba(74, 137, 255, 0.06);
}

.email-session-bar__meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  flex: 1;
}

.email-session-bar__meta strong {
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.email-session-bar__meta span {
  font-size: 11px;
  color: var(--checkout-muted, #9299a7);
}

.email-session-bar__link {
  color: #4a89ff;
  text-decoration: none;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}

.email-session-bar__link:hover {
  text-decoration: underline;
}