/* One compact product film. The timeline owns all progress, with no independent loops. */
#flow .payment-demo {
  --payment-ease: cubic-bezier(.22, 1, .36, 1);
  --payment-surface: #F5F5F7;
  --payment-glass: rgba(250,250,252,.83);
  --payment-phone-bg: #FAFAFC;
  --payment-light: rgba(255,255,255,.94);
  --payment-shadow: rgba(29,29,31,.12);
  --payment-tap: 0;
  --payment-success: 0;
  --payment-verification: 0;
  position: relative; isolation: isolate; overflow: hidden;
  padding: clamp(22px, 3vw, 36px); border: 1px solid rgba(var(--on-bg), .08); border-radius: 30px;
  background: var(--content-card-bg); box-shadow: 0 20px 60px -38px var(--payment-shadow) !important;
  backdrop-filter: none; -webkit-backdrop-filter: none;
}
[data-theme="dark"] #flow .payment-demo { --payment-surface: #29292D; --payment-glass: rgba(44,44,49,.84); --payment-phone-bg: #18181B; --payment-light: rgba(255,255,255,.13); --payment-shadow: rgba(0,0,0,.5); }
#flow .payment-demo::before, #flow .payment-demo::after { display: none; }
.payment-demo-head { display: flex; justify-content: space-between; gap: 20px; align-items: center; }
.payment-demo-head > div:first-child { min-width: 0; }
.payment-kicker { color: var(--blue-3); letter-spacing: .1em; text-transform: uppercase; font-size: .65rem; font-weight: 650; }
.payment-kicker > span { color: var(--text-muted); }
#flow .payment-demo h2 { font-size: clamp(1.5rem, 2.7vw, 2.1rem); font-weight: 600; line-height: 1.15; letter-spacing: -.04em; margin: 8px 0 0; text-wrap: balance; }
.payment-controls { display: flex; gap: 6px; flex-shrink: 0; }
.payment-controls button { font: inherit; font-size: .75rem; padding: 10px 15px; min-height: 44px; border-radius: 999px; border: 1px solid rgba(var(--on-bg), .13); background: transparent; color: var(--text-secondary); cursor: pointer; transition: background-color 180ms ease, color 180ms ease, transform 250ms var(--payment-ease); }
.payment-controls button:focus-visible { outline: 2px solid var(--blue-3); outline-offset: 4px; }
.payment-controls button:hover:not(:disabled) { background: rgba(var(--on-bg), .05); color: var(--text); }
.payment-controls button:active:not(:disabled) { transform: scale(.95); }
.payment-controls button:disabled { opacity: .45; cursor: default; }
.payment-sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }

/* The connector geometry is measured from the real device boxes at every size. */
.payment-track { position: relative; isolation: isolate; display: grid; grid-template-columns: 1.15fr repeat(3, minmax(0, 1fr)); gap: 20px; margin: 26px 0 24px; }
.payment-wires { position: absolute; z-index: 0; inset: 0; width: 100%; height: 100%; overflow: visible; pointer-events: none; }
.payment-rail, .payment-auth-rail, .payment-travel { fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.payment-rail { stroke: rgba(var(--on-bg), .13); }
.payment-auth-rail { stroke: var(--blue-3); stroke-dasharray: 3 6; opacity: 0; transition: opacity 300ms ease; }
.payment-travel { stroke: var(--blue-3); stroke-width: 2; }
.payment-packet { fill: var(--blue-3); }
.payment-packet-halo { fill: var(--blue-3); opacity: .12; }
.payment-node { position: relative; z-index: 1; display: grid; grid-template-rows: 270px auto; justify-items: center; gap: 14px; text-align: center; min-width: 0; }
.payment-device { position: relative; align-self: center; display: grid; place-items: center; width: 76px; height: 76px; border-radius: 23px; color: var(--text-secondary); background: var(--payment-surface); border: 1px solid rgba(var(--on-bg), .1); box-shadow: inset 0 1px 0 var(--payment-light), 0 10px 24px -17px var(--payment-shadow); transition: border-color 350ms ease, color 350ms ease, box-shadow 350ms ease; }
.payment-device > svg { width: 33px; height: 33px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.payment-node-label { color: var(--text-secondary); font-size: .78rem; line-height: 1.4; font-weight: 550; }
.payment-node.is-active .payment-device { border-color: rgba(var(--c-blue), .65); color: var(--blue-3); box-shadow: inset 0 1px 0 var(--payment-light), 0 0 0 5px rgba(var(--c-blue), .055), 0 14px 30px -18px rgba(var(--c-blue), .28); }
.payment-node.is-done .payment-device { color: var(--blue-3); border-color: rgba(var(--c-blue), .25); }
.payment-node.is-active .payment-node-label { color: var(--text); }
.payment-node-check { position: absolute; right: -5px; bottom: -5px; width: 21px; height: 21px; border-radius: 50%; background: var(--blue-3); color: #FFF; font: 700 12px/21px system-ui; opacity: 0; transform: scale(.6); box-shadow: 0 0 0 3px var(--content-card-bg); transition: opacity 200ms ease, transform 350ms var(--payment-ease); }
.payment-node.is-confirmed .payment-node-check { opacity: 1; transform: scale(1); }
.payment-bank-auth { position: absolute; top: -30px; left: 50%; transform: translate(-50%, 5px); opacity: 0; font-size: .59rem; font-weight: 650; letter-spacing: .08em; color: var(--blue-3); transition: opacity 250ms, transform 350ms var(--payment-ease); }

/* Glass sits over actual card detail, not over every reading surface. */
.payment-device.payment-phone { width: 152px; height: 270px; padding: 5px; border-radius: 29px; border: 1px solid rgba(var(--on-bg), .27); background: linear-gradient(140deg, var(--payment-light), rgba(var(--on-bg), .13) 45%, var(--payment-light)); box-shadow: 0 16px 30px -16px var(--payment-shadow), inset 0 0 0 1px rgba(var(--on-bg), .08); overflow: visible; }
.payment-phone-screen { width: 100%; height: 100%; position: relative; overflow: hidden; isolation: isolate; border-radius: 24px; color: var(--text); background: var(--payment-phone-bg); }
.payment-phone-island { position: absolute; z-index: 5; width: 42px; height: 11px; border-radius: 99px; top: 8px; left: calc(50% - 21px); background: #151517; }
[data-theme="dark"] .payment-phone-island { background: #030303; }
.payment-phone-home { position: absolute; z-index: 5; bottom: 6px; left: calc(50% - 23px); width: 46px; height: 3px; border-radius: 99px; background: rgba(var(--on-bg), .28); }
.payment-checkout { display: flex; flex-direction: column; align-items: center; height: 100%; padding: 31px 13px 22px; transition: opacity 350ms ease, transform 500ms var(--payment-ease); }
.payment-screen-eyebrow { font-size: .48rem; font-weight: 650; letter-spacing: .14em; color: var(--text-secondary); }
.payment-bank-card { position: relative; width: 112px; height: 67px; flex-shrink: 0; border: 1px solid rgba(var(--on-bg), .12); border-radius: 11px; margin: 14px 0 12px; background: linear-gradient(135deg, var(--payment-light), rgba(var(--on-bg), .015) 75%), var(--payment-surface); box-shadow: 0 8px 14px -9px var(--payment-shadow); text-align: left; }
.payment-bank-card > svg { position: absolute; width: 18px; height: 18px; top: 10px; left: 10px; fill: none; stroke: var(--text-secondary); stroke-width: 1; }
.payment-bank-card > span { position: absolute; bottom: 12px; left: 10px; font-size: .52rem; letter-spacing: .07em; }
.payment-bank-card > strong { position: absolute; right: 10px; top: 12px; font-size: .5rem; font-style: italic; letter-spacing: -.03em; }
.payment-total { font-size: 1.65rem; font-weight: 600; line-height: 1.2; letter-spacing: -.05em; font-variant-numeric: tabular-nums; }
.payment-total > span { color: var(--text-secondary); font-size: 1rem; }
.payment-phone-pay { position: relative; display: flex; align-items: center; justify-content: center; gap: 7px; min-height: 31px; width: 100%; margin-top: auto; border-radius: 10px; background: #0071E3; color: #FFF; font-size: .69rem; font-weight: 600; box-shadow: 0 4px 10px rgba(0,113,227,.14); transform: scale(calc(1 - var(--payment-tap) * (1 - var(--payment-tap)) * .16)); }
.payment-phone-pay > svg { width: 11px; height: 11px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.payment-tap-ring { position: absolute; width: 27px; height: 27px; border: 1px solid rgba(255,255,255,.9); border-radius: 50%; opacity: calc(4 * var(--payment-tap) * (1 - var(--payment-tap))); transform: scale(calc(.7 + var(--payment-tap) * .5)); pointer-events: none; }
.payment-auth-sheet { position: absolute; z-index: 3; inset: 44px 0 0; display: flex; flex-direction: column; align-items: center; padding: 13px 10px 18px; border-top: 1px solid var(--payment-light); border-radius: 20px 20px 0 0; background: var(--payment-surface); box-shadow: 0 -8px 25px -13px var(--payment-shadow); transform: translateY(105%); opacity: 0; transition: transform 600ms var(--payment-ease), opacity 240ms ease; }
.payment-auth-grabber { position: absolute; width: 27px; height: 3px; top: 6px; border-radius: 10px; background: rgba(var(--on-bg), .17); }
.payment-shield { width: 32px; height: 35px; margin: 8px 0 9px; overflow: visible; fill: rgba(var(--c-blue), .06); stroke: var(--blue-3); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.payment-shield-check { fill: none; stroke-width: 2.6; stroke-dasharray: 30; stroke-dashoffset: calc(30 * (1 - var(--payment-verification))); }
.payment-auth-sheet > strong { font-size: .87rem; letter-spacing: -.025em; font-weight: 650; }
.payment-auth-caption { font-size: .56rem; color: var(--text-secondary); margin-top: 3px; }
.payment-code { display: flex; gap: 4px; margin-top: 15px; }
.payment-code > span { display: grid; place-items: center; width: 15px; height: 22px; border-radius: 5px; border: 1px solid rgba(var(--on-bg), .16); background: var(--payment-phone-bg); transition: border-color 200ms ease, background-color 200ms ease; }
.payment-code > span::after { content: ''; width: 4px; height: 4px; border-radius: 50%; background: var(--text); opacity: 0; transform: scale(.5); transition: opacity 160ms, transform 250ms var(--payment-ease); }
.payment-code > span.is-filled { border-color: rgba(var(--c-blue), .38); }
.payment-code > span.is-filled::after { opacity: 1; transform: scale(1); }
.payment-auth-verified { color: var(--blue-3); font-size: .55rem; font-weight: 600; margin-top: 10px; opacity: 0; transform: translateY(4px); transition: opacity 240ms ease, transform 350ms var(--payment-ease); }
.payment-approved-screen { position: absolute; z-index: 4; inset: 0; display: flex; flex-direction: column; justify-content: center; align-items: center; padding-bottom: 2px; background: var(--payment-phone-bg); opacity: 0; transform: scale(.96); pointer-events: none; transition: opacity 350ms ease, transform 650ms var(--payment-ease); }
.payment-success-mark { width: 58px; height: 58px; margin-bottom: 15px; fill: none; stroke: var(--blue-3); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.payment-success-mark > circle { fill: rgba(var(--c-blue), .06); stroke: rgba(var(--c-blue), .2); }
.payment-success-mark > path { stroke-width: 3; stroke-dasharray: 44; stroke-dashoffset: calc(44 * (1 - var(--payment-success))); }
.payment-approved-screen > strong { font-size: 1rem; font-weight: 600; letter-spacing: -.03em; }
.payment-approved-screen > span { font-size: .68rem; color: var(--text-secondary); margin-top: 5px; }
.payment-demo:is([data-payment-state="challenge"], [data-payment-state="verifying"], [data-payment-state="verified"]) .payment-auth-sheet { transform: none; opacity: 1; }
.payment-demo:is([data-payment-state="challenge"], [data-payment-state="verifying"], [data-payment-state="verified"]) .payment-checkout { transform: scale(.95); opacity: .45; }
.payment-demo.is-authenticating .payment-auth-rail { opacity: .45; }
.payment-demo.is-authenticating .payment-bank-auth { opacity: 1; transform: translate(-50%, 0); }
.payment-demo[data-payment-state="verified"] .payment-auth-verified { opacity: 1; transform: none; }
.payment-demo:is([data-payment-state="routing"], [data-payment-state="network"], [data-payment-state="issuer"], [data-payment-state="decision"], [data-payment-state="returning"]) .payment-checkout { opacity: .45; }
.payment-demo:is([data-payment-state="routing"], [data-payment-state="network"], [data-payment-state="issuer"], [data-payment-state="decision"], [data-payment-state="returning"]) .payment-phone-pay { color: transparent; }
.payment-demo:is([data-payment-state="routing"], [data-payment-state="network"], [data-payment-state="issuer"], [data-payment-state="decision"], [data-payment-state="returning"]) .payment-phone-pay > svg { opacity: 0; }
.payment-demo:is([data-payment-state="routing"], [data-payment-state="network"], [data-payment-state="issuer"], [data-payment-state="decision"], [data-payment-state="returning"]) .payment-phone-pay::after { content: '•••'; position: absolute; inset: 0; display: grid; place-items: center; color: #FFF; font-size: .9rem; letter-spacing: .2em; }
.payment-demo[data-payment-state="approved"] .payment-checkout { opacity: 0; }
.payment-demo[data-payment-state="approved"] .payment-approved-screen { opacity: 1; transform: none; }
.payment-demo.is-paused *, .payment-demo.is-paused *::before, .payment-demo.is-paused *::after { animation-play-state: paused !important; }

#flow .payment-caption { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px 24px; min-height: 44px; padding-top: 16px; border-top: 1px solid rgba(var(--on-bg), .1); }
.payment-chapters { display: flex; align-items: center; gap: 22px; padding: 0; margin: 0; list-style: none; counter-reset: payment-chapter; }
.payment-chapters > li { display: flex; align-items: center; gap: 6px; color: var(--text-secondary); font-size: .69rem; font-weight: 550; counter-increment: payment-chapter; transition: color 200ms ease; }
.payment-chapters > li::before { content: counter(payment-chapter, decimal-leading-zero); font-size: .55rem; font-weight: 600; color: var(--text-muted); font-variant-numeric: tabular-nums; }
.payment-chapters > li.is-active, .payment-chapters > li.is-active::before, .payment-chapters > li.is-done::before { color: var(--blue-3); }
#flow .payment-status { color: var(--text-secondary); font-size: .74rem; line-height: 1.4; min-height: 1.4em; margin: 0; }
#flow .payment-demo.is-complete .payment-status { color: var(--blue-3); }
.payment-progress { height: 2px; background: rgba(var(--on-bg), .06); margin-top: 16px; overflow: hidden; border-radius: 99px; }
.payment-progress > span { display: block; height: 100%; background: var(--blue-3); transform: scaleX(0); transform-origin: left; opacity: .7; }
#flow .payment-notes { color: var(--text-secondary); font-size: .66rem; line-height: 1.65; margin: 4px 0 0; }
#flow .payment-notes > summary { cursor: pointer; width: fit-content; padding: 11px 0 3px; color: var(--text-secondary); }
#flow .payment-notes p { max-width: 100ch; margin: 9px 0 0; }
.payment-footnote { color: var(--text-secondary); font-size: .73rem; line-height: 1.6; margin-top: 16px; }

@supports ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .payment-auth-sheet { background: var(--payment-glass); backdrop-filter: blur(14px) saturate(1.1); -webkit-backdrop-filter: blur(14px) saturate(1.1); }
}
@media (max-width: 800px) and (min-width: 641px) {
  .payment-track { gap: 12px; grid-template-columns: 1.4fr repeat(3, minmax(0, 1fr)); }
  .payment-device:not(.payment-phone) { width: 65px; height: 65px; border-radius: 20px; }
  .payment-node-label { font-size: .69rem; }
}
@media (max-width: 640px) {
  #flow .payment-demo { padding: 22px 20px 18px; border-radius: 26px; }
  .payment-demo-head { align-items: flex-start; gap: 12px; }
  #flow .payment-demo h2 { max-width: 14ch; font-size: 1.5rem; }
  .payment-kicker { font-size: .58rem; letter-spacing: .09em; }
  .payment-controls { gap: 0; }
  .payment-controls button { padding: 8px; min-width: 44px; font-size: .66rem; border-color: transparent; }
  .payment-controls button[data-payment-replay] { border-color: rgba(var(--on-bg), .13); }
  .payment-track { grid-template-columns: repeat(3, minmax(0, 1fr)); column-gap: 12px; row-gap: 25px; margin: 20px 0 18px; }
  .payment-node { grid-template-rows: 54px auto; gap: 10px; }
  .payment-customer { grid-column: 1 / -1; grid-template-rows: 212px auto; }
  .payment-device:not(.payment-phone) { width: 54px; height: 54px; border-radius: 17px; }
  .payment-device > svg { width: 26px; height: 26px; }
  .payment-device.payment-phone { width: 128px; height: 212px; padding: 4px; border-radius: 25px; }
  .payment-phone-screen { border-radius: 20px; }
  .payment-phone-island { width: 36px; height: 9px; left: calc(50% - 18px); top: 7px; }
  .payment-checkout { padding: 26px 10px 17px; }
  .payment-bank-card { width: 100px; height: 54px; margin: 9px 0 8px; border-radius: 9px; }
  .payment-total { font-size: 1.4rem; }
  .payment-phone-pay { min-height: 27px; font-size: .64rem; border-radius: 8px; }
  .payment-auth-sheet { inset-block-start: 27px; padding-top: 12px; }
  .payment-shield { width: 27px; height: 30px; margin: 5px 0 6px; }
  .payment-code { gap: 3px; margin-top: 10px; }
  .payment-code > span { width: 14px; height: 20px; }
  .payment-auth-verified { margin-top: 8px; }
  .payment-node-label { font-size: .67rem; }
  .payment-bank-auth { top: -21px; font-size: .52rem; }
  .payment-node-check { width: 18px; height: 18px; font-size: 10px; line-height: 18px; right: -4px; bottom: -4px; }
  #flow .payment-caption { justify-content: center; gap: 8px; padding-top: 13px; }
  .payment-chapters { justify-content: center; gap: 20px; width: 100%; }
  .payment-chapters > li { font-size: .65rem; }
  #flow .payment-status { font-size: .69rem; text-align: center; }
  .payment-progress { margin-top: 12px; }
}
@media (max-width: 380px) {
  #flow .payment-demo { padding: 20px 15px 15px; }
  #flow .payment-demo h2 { font-size: 1.27rem; }
  .payment-kicker { font-size: .51rem; }
  .payment-controls button { font-size: .6rem; padding-inline: 6px; }
  .payment-track { column-gap: 8px; }
  .payment-node-label { font-size: .61rem; }
}
@media (prefers-reduced-motion: reduce) {
  #flow .payment-demo *, #flow .payment-demo *::before, #flow .payment-demo *::after { transition: none !important; animation: none !important; }
}
@media (prefers-reduced-transparency: reduce), (prefers-contrast: more), (forced-colors: active) {
  #flow .payment-demo { box-shadow: none !important; border-color: var(--text-secondary); }
  #flow .payment-auth-sheet { background: var(--payment-surface); backdrop-filter: none; -webkit-backdrop-filter: none; box-shadow: none; }
  #flow .payment-device, #flow .payment-bank-card { background: var(--payment-surface); box-shadow: none; border-color: var(--text-secondary); }
  #flow .payment-demo::before, #flow .payment-demo::after { display: none; }
  .payment-rail { stroke: var(--text-secondary); }
  .payment-node-check { outline: 1px solid currentColor; }
}
@media print {
  #flow .payment-controls, #flow .payment-progress { display: none; }
  #flow .payment-demo { break-inside: avoid; box-shadow: none !important; }
}