/* gd-checkout-sheet: veil + bottom sheet. */
gd-checkout-sheet { position: fixed; inset: 0; z-index: 40; background: var(--scrim); backdrop-filter: blur(var(--blur-veil));
  display: flex; align-items: flex-end; justify-content: center; }
gd-checkout-sheet .sheet { width: 100%; max-width: 480px;
  background: linear-gradient(180deg, var(--sheet-tint-top), var(--sheet-tint-bottom));
  border: 1px solid var(--accent-soft-border); border-bottom: 0;
  border-radius: var(--radius-card) var(--radius-card) 0 0;
  padding: var(--gap-grid) 22px calc(18px + env(safe-area-inset-bottom));
  animation: gd-sheet-up var(--dur-sheet) var(--ease-out); }
@keyframes gd-sheet-up { from { transform: translateY(100%); } }
gd-checkout-sheet .sheet-handle { width: var(--tap-min); height: 4px; border-radius: 2px;
  background: var(--ink-3); opacity: .5; margin: var(--space-2xs) auto var(--space-md); }
gd-checkout-sheet .sheet-title-row { display: flex; justify-content: space-between; align-items: baseline;
  font: 500 var(--type-title-lg)/1.2 var(--font-display); }
gd-checkout-sheet .sheet-price { font: 700 var(--type-title-lg)/1.2 var(--font-ui); color: var(--accent); }
gd-checkout-sheet .sheet-sub { font: var(--type-ui)/1.5 var(--font-ui); color: var(--ink-2); margin: 6px 0 14px; }
gd-checkout-sheet .sheet-assure { padding: var(--space-sm) 14px; border: 1px solid var(--accent-soft-border);
  border-radius: var(--radius-ctl); font: var(--type-note)/1.5 var(--font-ui); color: var(--ink-2);
  background: var(--accent-wash); margin-bottom: 14px; }
/* The crossover swap line: one quiet linklike, the last word on the
   savings math (PURCHASE-SYSTEM.md). Sits under the primary, centered. */
gd-checkout-sheet .sheet-swap { display: block; margin: var(--space-sm) auto 0; }
gd-checkout-sheet .sheet-methods { font: var(--type-note)/1 var(--font-ui); color: var(--ink-2);
  text-align: center; margin: var(--space-sm) 0 0; }
/* Stripe attribution (journey pass, checkout-sheet.NOTES.md): badge +
   plain language + familiar method names, together. The lockup below is
   the design mock's stand-in; when the OFFICIAL Powered-by-Stripe badge
   SVG (Stripe brand kit, never redrawn) is added to /assets, swap the
   span for an <img> of it. */
gd-checkout-sheet .sheet-stripe { display: flex; justify-content: center; margin: var(--space-sm) 0 0; }
gd-checkout-sheet .sheet-stripe-badge { display: inline-flex; align-items: center; gap: 5px; white-space: nowrap;
  border: 1px solid var(--accent-soft-border); border-radius: 6px; padding: 5px 10px;
  font: 600 11px/1 var(--font-ui); color: var(--ink-2); }
gd-checkout-sheet .sheet-stripe-badge b { font-weight: 800; letter-spacing: .01em; color: var(--ink); }
gd-checkout-sheet .sheet-foot { font: var(--type-fine)/1.5 var(--font-ui); color: var(--ink-3);
  text-align: center; margin: 6px 0 0; }
@media (prefers-reduced-motion: reduce) {
  gd-checkout-sheet .sheet { animation: none; }
}