:root {
  --ground: #f4f0ea;
  --ink: #1d1b24;
  --muted: rgba(29, 27, 36, 0.56);
  --line: rgba(29, 27, 36, 0.12);
  --accent: 155, 130, 245;
  --green: #2fb37a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100dvh;
  overflow: hidden;
  background: var(--ground);
  color: var(--ink);
  font: 15px/1.45 ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

/* A soft light behind the card, tinted by the card's brand. script.js moves it. */
.aura { position: fixed; inset: 0; pointer-events: none; background: radial-gradient(60% 50% at 50% 40%, rgba(255, 255, 255, 0.85), transparent 75%); }
.aura i {
  position: absolute;
  left: 0;
  top: 0;
  width: 560px;
  height: 560px;
  margin: -280px 0 0 -280px;
  border-radius: 50%;
  background: rgb(var(--accent));
  opacity: 0.26;
  filter: blur(90px);
  will-change: transform;
}

.checkout {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 380px);
  align-items: center;
  gap: clamp(20px, 4vw, 56px);
  min-height: 100dvh;
  padding: 24px clamp(20px, 5vw, 64px);
}

/* ---------- The card ---------- */

.stage { position: relative; align-self: stretch; min-height: 300px; }
.rig { position: absolute; left: 50%; top: 50%; width: 0; height: 0; will-change: transform; }

/* Everything below the reader's slot is hidden, so the card can go in and the receipt can come out. */
.pocket { position: absolute; left: -1500px; top: -1500px; width: 3000px; height: calc(1500px + var(--clip, 1500px)); overflow: hidden; pointer-events: none; }

.drop {
  position: absolute;
  left: calc(1500px - var(--w) / 2);
  top: calc(1500px - var(--h) / 2);
  width: var(--w);
  height: var(--h);
  perspective: 1500px;
  will-change: transform;
}

.halo { position: absolute; inset: -16px; border-radius: calc(var(--w) * 0.09); overflow: hidden; filter: blur(22px); opacity: 0; }
.halo::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 160%;
  aspect-ratio: 1;
  translate: -50% -50%;
  rotate: var(--spin, 0deg);
  background: conic-gradient(rgb(var(--accent)), #ffb892, #8ccdff, #b9a0ff, rgb(var(--accent)));
}

.shadow {
  position: absolute;
  left: 10%;
  right: 10%;
  bottom: -8%;
  height: 40%;
  border-radius: 50%;
  background: rgba(30, 22, 60, 0.5);
  filter: blur(22px);
  opacity: 0.55;
}

.card {
  position: absolute;
  inset: 0;
  font-size: calc(var(--w) / 25);
  transform-style: preserve-3d;
  will-change: transform;
}

.face {
  position: absolute;
  inset: 0;
  border-radius: 1.15em;
  overflow: hidden;
  color: #fff;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.16), inset 0 1px 0 rgba(255, 255, 255, 0.32), inset 0 -1px 0 rgba(0, 0, 0, 0.18);
}
.back { transform: rotateY(180deg); }

/* One skin per brand. script.js fades between them. */
.skin { position: absolute; inset: 0; opacity: 0; }
.skin[data-brand="plain"] {
  opacity: 1;
  background:
    radial-gradient(90% 120% at 0% 0%, #c4b2ff 0%, transparent 60%),
    radial-gradient(80% 110% at 100% 100%, #ffb39a 0%, transparent 60%),
    linear-gradient(135deg, #8b78ee 0%, #7c9cf2 55%, #b08cf0 100%);
}
.skin[data-brand="visa"] {
  background:
    radial-gradient(90% 120% at 100% 0%, #4f7dff 0%, transparent 58%),
    radial-gradient(70% 90% at 0% 100%, #18245e 0%, transparent 70%),
    linear-gradient(140deg, #0b1233 0%, #182a78 55%, #2c52d0 100%);
}
.skin[data-brand="mastercard"] {
  background:
    radial-gradient(90% 120% at 100% 100%, #ff8a4c 0%, transparent 58%),
    radial-gradient(70% 90% at 0% 0%, #4a2140 0%, transparent 70%),
    linear-gradient(140deg, #1a1217 0%, #3a1c2c 50%, #a63a3e 100%);
}
.skin[data-brand="amex"] {
  background:
    radial-gradient(90% 120% at 0% 100%, #82e3c3 0%, transparent 58%),
    radial-gradient(70% 90% at 100% 0%, #0d3c37 0%, transparent 70%),
    linear-gradient(140deg, #0a2b28 0%, #145448 55%, #3a957e 100%);
}

.lines { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.09; }

.chip { position: absolute; left: 7.5%; top: 15%; width: 2.75em; filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.25)); }
.wave { position: absolute; left: calc(7.5% + 3.1em); top: calc(15% + 0.3em); width: 1.5em; opacity: 0.85; }

.logos { position: absolute; right: 7.5%; top: 12.5%; width: 4.6em; height: 2.4em; }
.logo { position: absolute; right: 0; top: 0; height: 100%; display: flex; align-items: center; justify-content: flex-end; opacity: 0; }
.logo[data-brand="plain"] i, .logo[data-brand="mastercard"] i { width: 1.9em; height: 1.9em; border-radius: 50%; }
.logo[data-brand="plain"] i { border: 1.5px solid rgba(255, 255, 255, 0.7); }
.logo[data-brand="plain"] i + i { margin-left: -0.75em; }
.logo[data-brand="mastercard"] i:first-child { background: #eb001b; }
.logo[data-brand="mastercard"] i + i { margin-left: -0.75em; background: #f79e1b; mix-blend-mode: screen; opacity: 0.95; }
.logo[data-brand="visa"] { font-size: 1.7em; font-weight: 800; font-style: italic; letter-spacing: -0.02em; }
.logo[data-brand="amex"] { font-size: 0.82em; font-weight: 800; letter-spacing: 0.08em; }
.logo[data-brand="amex"]::before { content: ""; position: absolute; inset: 0.55em -0.5em 0.55em -0.5em; border: 1.5px solid rgba(255, 255, 255, 0.85); border-radius: 0.3em; }

.value { display: inline-flex; white-space: pre; }
.slot { position: relative; display: inline-block; }
.slot[hidden] { display: none; }
.slot > span { display: inline-block; will-change: transform, opacity; }
.slot > .out { position: absolute; left: 0; top: 0; width: 100%; text-align: center; }
.dim { color: rgba(255, 255, 255, 0.42); }

.number {
  position: absolute;
  left: 7.5%;
  top: 49%;
  display: flex;
  font-size: 1.62em;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  text-shadow: 0 1px 1px rgba(0, 0, 0, 0.3);
}
.number .slot { width: 0.66em; text-align: center; }
.number .gap { width: 0.42em; }

.holder, .expiry { position: absolute; bottom: 10%; display: grid; gap: 0.2em; }
.holder { left: 7.5%; max-width: 60%; }
.expiry { right: 7.5%; text-align: right; justify-items: end; }
.holder small, .expiry small, .fine { font-size: 0.56em; letter-spacing: 0.14em; text-transform: uppercase; opacity: 0.66; }
.holder .value, .expiry .value { font-size: 0.98em; font-weight: 500; letter-spacing: 0.08em; text-shadow: 0 1px 1px rgba(0, 0, 0, 0.25); }
.expiry .value { font-variant-numeric: tabular-nums; }

/* Amex prints its four digit code on the front, so the card doesn't turn over for it. */
.cid { position: absolute; right: 7.5%; top: 36%; font-size: 0.82em; font-weight: 600; letter-spacing: 0.1em; opacity: 0; }

.stripe { position: absolute; left: 0; right: 0; top: 13%; height: 19%; background: linear-gradient(#17151c, #26232c); }
.sign { position: absolute; left: 7.5%; right: 7.5%; top: 43%; height: 17%; display: flex; }
.signature {
  flex: 1;
  display: flex;
  align-items: center;
  padding: 0 0.8em;
  border-radius: 0.3em 0 0 0.3em;
  background: repeating-linear-gradient(-12deg, #f6f2ea 0 0.3em, #ebe5da 0.3em 0.6em);
  color: #2b2a4c;
  font: italic 1.3em/1 "Snell Roundhand", "Segoe Script", "Brush Script MT", cursive;
  white-space: nowrap;
  overflow: hidden;
}
.cvc {
  display: grid;
  place-items: center;
  width: 4.4em;
  border-radius: 0 0.3em 0.3em 0;
  background: #fff;
  color: #1d1b24;
  font-size: 1.05em;
  font-weight: 600;
  font-style: italic;
  letter-spacing: 0.08em;
}
.cvc .dim { color: rgba(29, 27, 36, 0.32); }
.fine { position: absolute; right: 7.5%; top: 62%; margin: 0; }
.small { position: absolute; left: 7.5%; bottom: 9%; width: 58%; margin: 0; font-size: 0.5em; line-height: 1.5; opacity: 0.55; }
.holo {
  position: absolute;
  right: 7.5%;
  bottom: 10%;
  width: 3.2em;
  height: 2.2em;
  border-radius: 0.4em;
  background: conic-gradient(from var(--holo, 0deg), #ffd6f0, #c6e7ff, #d9ffe9, #fff2c4, #ffd6f0);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.5);
  opacity: 0.85;
}

/* The soft frame that follows whichever field you're typing in. */
.ring {
  position: absolute;
  left: 0;
  top: 0;
  border-radius: 0.55em;
  border: 1.5px solid rgba(255, 255, 255, 0.78);
  background: rgba(255, 255, 255, 0.07);
  box-shadow: 0 0 0 0.28em rgba(255, 255, 255, 0.1), 0 0 1.6em rgba(255, 255, 255, 0.35), inset 0 0 0.9em rgba(255, 255, 255, 0.14);
  opacity: 0;
  pointer-events: none;
}
.back .ring { border-color: rgba(var(--accent), 0.95); box-shadow: 0 0 0 0.28em rgba(var(--accent), 0.25), 0 0 1.6em rgba(var(--accent), 0.55); background: none; }

.shimmer { position: absolute; inset: 0; opacity: 0; background: linear-gradient(105deg, transparent 30%, rgba(255, 255, 255, 0.42) 50%, transparent 70%); }
.shine {
  position: absolute;
  inset: 0;
  mix-blend-mode: soft-light;
  background:
    radial-gradient(circle at var(--sx, 30%) var(--sy, 20%), rgba(255, 255, 255, 0.75), transparent 46%),
    linear-gradient(115deg, transparent calc(var(--gx, 40%) - 20%), rgba(255, 255, 255, 0.5) var(--gx, 40%), transparent calc(var(--gx, 40%) + 20%));
}

/* ---------- The reader and the receipt ---------- */

.reader {
  position: absolute;
  left: calc(var(--rw) / -2 - 1.6em);
  top: calc(var(--slot) - 1.3em);
  width: calc(var(--rw) + 3.2em);
  height: 3.4em;
  font-size: var(--u);
  border-radius: 1.1em;
  background: linear-gradient(#ffffff, #f1ece5);
  box-shadow: 0 0 0 1px rgba(29, 27, 36, 0.05), inset 0 1px 0 #fff, 0 1.4em 2.6em -1.2em rgba(40, 30, 70, 0.4);
  opacity: 0;
}
.reader::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0.6em;
  width: 0.34em;
  height: 0.34em;
  margin-left: -0.17em;
  border-radius: 50%;
  background: var(--led, #ddd6cc);
  box-shadow: 0 0 0.6em var(--led, transparent);
}
.mouth {
  position: absolute;
  left: 1em;
  right: 1em;
  top: 1em;
  height: 0.6em;
  border-radius: 1em;
  background: linear-gradient(#0f0e13, #2b2832);
  box-shadow: inset 0 2px 3px rgba(0, 0, 0, 0.7), 0 1px 0 #fff;
}

.receipt {
  position: absolute;
  left: calc(1500px - var(--rw) / 2);
  top: 0;
  width: var(--rw);
  font-size: calc(var(--u) * 1.08);
  filter: drop-shadow(0 0.7em 1.2em rgba(40, 30, 70, 0.18));
  will-change: transform;
}
.paper {
  --z: 0.42em;
  padding: 1.7em 1.2em 1.8em;
  background: #fffdf9;
  text-align: center;
  -webkit-mask: linear-gradient(#000 0 0) 0 var(--z) / 100% 100% no-repeat, conic-gradient(from 135deg at top, #0000, #000 1deg 90deg, #0000 91deg) 0 0 / calc(var(--z) * 2) var(--z) repeat-x;
  mask: linear-gradient(#000 0 0) 0 var(--z) / 100% 100% no-repeat, conic-gradient(from 135deg at top, #0000, #000 1deg 90deg, #0000 91deg) 0 0 / calc(var(--z) * 2) var(--z) repeat-x;
}
.badge { position: relative; width: 3.3em; height: 3.3em; margin: 0 auto 0.8em; }
.pulse { position: absolute; inset: 0; border-radius: 50%; border: 2px solid var(--green); opacity: 0; }
.check { position: relative; display: block; width: 100%; height: 100%; overflow: visible; }
.disc { fill: var(--green); opacity: 0; }
.loop { fill: none; stroke: var(--green); stroke-width: 2.5; stroke-dasharray: 1; stroke-dashoffset: 1; transform: rotate(-90deg); transform-origin: center; }
.tick { fill: none; stroke: #fff; stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 1; stroke-dashoffset: 1; }
.done { margin: 0; font-size: 0.9em; color: var(--muted); }
.paid { margin: 0.1em 0 0.7em; font-size: 2.1em; font-weight: 600; letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }
.paper dl { margin: 0; padding-top: 0.75em; border-top: 1.5px dashed var(--line); font-size: 0.74em; }
.paper dl div { display: flex; justify-content: space-between; gap: 1em; padding: 0.22em 0; }
.paper dt { color: var(--muted); }
.paper dd { margin: 0; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.barcode {
  display: block;
  height: 1.7em;
  margin: 0.9em 0.4em 0;
  opacity: 0.8;
  background:
    repeating-linear-gradient(90deg, var(--ink) 0 2px, transparent 2px 5px, var(--ink) 5px 6px, transparent 6px 8px, var(--ink) 8px 11px, transparent 11px 13px),
    repeating-linear-gradient(90deg, transparent 0 17px, #fffdf9 17px 19px);
}

.status { position: absolute; left: -12em; width: 24em; margin: 0; text-align: center; font-size: 14px; color: var(--muted); opacity: 0; }
.status span { display: inline-block; }

.again {
  position: fixed;
  left: 0;
  top: 0;
  padding: 0 18px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  color: var(--ink);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
}
.again:hover { background: #fff; }

.confetti { position: fixed; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 5; }

/* ---------- The form ---------- */

.pay {
  position: relative;
  padding: 24px 24px 18px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.8);
  box-shadow: 0 0 0 1px rgba(29, 27, 36, 0.05), 0 30px 60px -36px rgba(40, 30, 70, 0.4);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  will-change: transform, opacity;
}
.eyebrow { margin: 0; font-size: 12px; color: var(--muted); }
.pay h1 { margin: 0 0 14px; font-size: 22px; font-weight: 500; letter-spacing: -0.02em; }

.order { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; padding: 10px 12px; border-radius: 14px; background: rgba(244, 240, 234, 0.8); }
.order .thumb { width: 34px; height: 34px; flex: none; border-radius: 10px; background: linear-gradient(135deg, #b9a0ff, #8ccdff 60%, #ffb892); }
.order strong { display: block; font-size: 14px; font-weight: 500; line-height: 1.3; }
.order span { font-size: 12px; color: var(--muted); }
.order b { margin-left: auto; font-weight: 500; }

.field { display: grid; gap: 5px; margin-bottom: 11px; font-size: 12.5px; color: var(--muted); will-change: transform; }
.field input {
  width: 100%;
  height: 44px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 15px;
  font-variant-numeric: tabular-nums;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.field input::placeholder { color: rgba(29, 27, 36, 0.3); }
.field input:focus { border-color: rgba(var(--accent), 0.8); box-shadow: 0 0 0 4px rgba(var(--accent), 0.2); }
.field.is-wrong input { border-color: #e0685c; box-shadow: 0 0 0 4px rgba(224, 104, 92, 0.18); }

.control { position: relative; display: block; }
.control input { padding-right: 96px; }
.hint { position: absolute; right: 14px; top: 50%; translate: 0 -50%; font-size: 11px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: rgb(var(--accent)); }

.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.submit {
  width: 100%;
  height: 48px;
  margin-top: 5px;
  border: 0;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  font: inherit;
  font-weight: 500;
  cursor: pointer;
  box-shadow: 0 12px 24px -12px rgba(29, 27, 36, 0.6);
  transition: transform 0.25s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.25s ease;
}
.submit:hover { transform: translateY(-1px); box-shadow: 0 16px 30px -12px rgba(29, 27, 36, 0.6); }
.submit:active { transform: translateY(1px) scale(0.99); }

.note { display: flex; align-items: center; justify-content: center; gap: 6px; margin: 11px 0 0; font-size: 12px; color: var(--muted); }

.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

@media (max-width: 760px) {
  body { overflow: auto; }
  .checkout { grid-template-columns: 1fr; align-content: start; gap: 8px; padding: 16px; }
  .stage { min-height: 0; height: min(64vw, 300px); }
}

/* Short and narrow, like a demo frame on a page: drop the extras so the pay button fits. */
@media (max-width: 760px) and (max-height: 720px) {
  .checkout { padding: 12px 16px; gap: 4px; }
  .stage { height: min(58vw, 236px); }
  .pay { padding: 18px 18px 16px; }
  .eyebrow, .order, .note { display: none; }
  .pay h1 { margin-bottom: 10px; font-size: 19px; }
  .field { margin-bottom: 9px; }
  .field input { height: 40px; }
}