/* ─────────────────────────────────────────────────────────────
   Receipt printer — animated checkout + thermal receipt
   ───────────────────────────────────────────────────────────── */

:root {
  --bg:          #0a0b0d;
  --panel:       #17191d;
  --panel-2:     #1e2126;
  --panel-3:     #23262c;
  --sunken:      #0f1115;
  --hairline:    rgba(255, 255, 255, 0.075);
  --hairline-2:  rgba(255, 255, 255, 0.14);
  --text:        #e8eaed;
  --muted:       #878d97;
  --faint:       #5e646d;
  --green:       #35d399;
  --red:         #ff6b6b;
  --accent:      #78dcff;

  --paper:       #f7f6f2;
  --ink:         #2c2b28;
  --ink-soft:    #6f6e69;
  --ink-faint:   #a9a8a2;

  --printer-w:   440px;
  --paper-w:     300px;
  --tooth:       9px;

  --ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, "Roboto Mono", monospace;
  --spring: cubic-bezier(0.2, 0.8, 0.2, 1);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { height: 100%; }

body {
  margin: 0;
  padding: 40px 20px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  font-family: var(--ui);
  color: var(--text);
  background:
    radial-gradient(120% 80% at 50% -10%, #1b1e24 0%, transparent 60%),
    radial-gradient(80% 60% at 50% 110%, #14161a 0%, transparent 70%),
    var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

svg { width: 100%; height: 100%; display: block; }
button { font-family: inherit; }

.stage {
  position: relative;
  display: grid;
  justify-items: center;
  align-content: start;
  width: 100%;
  max-width: var(--printer-w);
}

/* ── terminal shell ─────────────────────────────────────────── */

.terminal {
  position: relative;
  z-index: 3;
  width: 100%;
  padding: 14px 14px 0;
  border-radius: 26px;
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--hairline);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.05) inset,
    0 30px 60px -20px rgba(0, 0, 0, 0.9);
}

.terminal__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 2px 4px 14px;
}

.mark {
  width: 30px; height: 30px;
  flex: none;
  display: grid; place-items: center;
  border-radius: 9px;
  background: #0e1013;
  border: 1px solid var(--hairline);
}
.mark svg { width: 17px; height: 17px; fill: #f2f3f5; }

/* step rail */

.steps {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--faint);
}
.steps li { display: flex; align-items: center; gap: 6px; transition: color 0.3s ease; }
.steps i {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
  transition: transform 0.4s var(--spring), box-shadow 0.4s ease;
}
.steps li.is-active { color: var(--text); }
.steps li.is-active i { transform: scale(1.5); box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.08); }
.steps li.is-done { color: var(--green); }

.ghost {
  width: 32px; height: 32px;
  flex: none;
  display: grid; place-items: center;
  color: var(--text);
  background: var(--panel-3);
  border: 1px solid var(--hairline-2);
  border-radius: 50%;
  cursor: pointer;
  transition: background 0.18s ease, transform 0.3s var(--spring);
}
.ghost:hover { background: #2b2f36; }
.ghost:active { transform: rotate(-160deg); }
.ghost svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

/* ── screen + panes ─────────────────────────────────────────── */

.screen {
  position: relative;
  /* `clip` (not `hidden`) — off-screen panes must never become scrollable */
  overflow: clip;
  border-radius: 18px;
  background: var(--sunken);
  border: 1px solid var(--hairline);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.04) inset;
  height: 0;
}
/* JS measures the first pane, then transitions take over */
.screen.is-ready { transition: height 0.5s var(--spring); }

.pane {
  position: absolute;
  inset: 0 0 auto 0;
  padding: 18px;
  opacity: 0;
  visibility: hidden;
  transform: translateX(28px) scale(0.98);
  transition: opacity 0.35s ease, transform 0.45s var(--spring), visibility 0.45s;
}
.pane.is-active { opacity: 1; visibility: visible; transform: none; }
.pane.is-past { transform: translateX(-28px) scale(0.98); }

.pane__head h1 { margin: 0; font-size: 19px; font-weight: 650; letter-spacing: -0.01em; }
.pane__head p { margin: 4px 0 16px; font-size: 13px; color: var(--muted); }

/* ── segmented control ──────────────────────────────────────── */

.segmented {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  padding: 4px;
  border-radius: 12px;
  background: #16191e;
  border: 1px solid var(--hairline);
}
.segmented__thumb {
  position: absolute;
  top: 4px; left: 4px; bottom: 4px;
  width: calc(50% - 6px);
  border-radius: 9px;
  background: var(--panel-3);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4), 0 0 0 1px var(--hairline-2) inset;
  transition: transform 0.45s var(--spring);
}
.segmented button {
  position: relative;
  z-index: 1;
  height: 34px;
  font: 600 13px/1 var(--ui);
  color: var(--muted);
  background: none;
  border: 0;
  border-radius: 9px;
  cursor: pointer;
  transition: color 0.25s ease;
}
.segmented button[aria-checked="true"] { color: var(--text); }
.segmented em {
  font-style: normal;
  font-size: 11px;
  color: var(--green);
  margin-left: 4px;
}
.segmented[data-cycle="annual"] .segmented__thumb { transform: translateX(calc(100% + 4px)); }

/* ── fields ─────────────────────────────────────────────────── */

.field { position: relative; margin-top: 14px; }
.field label {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
}
.field .hint { margin: 2px 0 0; font-size: 12px; color: var(--faint); }

.field--row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.field--row label { margin: 0; color: var(--text); font-size: 13.5px; }

input[type="text"], input:not([type]) {
  width: 100%;
  height: 42px;
  padding: 0 13px;
  font: 500 14px/1 var(--ui);
  letter-spacing: 0.01em;
  color: var(--text);
  background: #16191e;
  border: 1px solid var(--hairline);
  border-radius: 11px;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
input::placeholder { color: #4d535b; }
input:focus {
  background: #191d23;
  border-color: rgba(120, 220, 255, 0.5);
  box-shadow: 0 0 0 3px rgba(120, 220, 255, 0.12);
}
input.is-bad { border-color: rgba(255, 107, 107, 0.6); box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.1); }
[data-input="number"], [data-input="exp"], [data-input="cvc"] { font-family: var(--mono); letter-spacing: 0.06em; }

.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.error {
  display: block;
  margin-top: 5px;
  font-size: 11.5px;
  color: var(--red);
  opacity: 0;
  transform: translateY(-3px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.field.is-bad .error { opacity: 1; transform: none; }
p.error { margin: 8px 0 0; opacity: 1; transform: none; }
p.error b { color: var(--text); }

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(5px); }
  60% { transform: translateX(-3px); }
  80% { transform: translateX(2px); }
}
.shake { animation: shake 0.4s ease; }

/* stepper */

.stepper {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border-radius: 11px;
  background: #16191e;
  border: 1px solid var(--hairline);
}
.stepper button {
  width: 30px; height: 30px;
  font-size: 16px;
  line-height: 1;
  color: var(--text);
  background: var(--panel-3);
  border: 1px solid var(--hairline);
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
}
.stepper button:hover { background: #2c3038; }
.stepper button:active { transform: scale(0.9); }
.stepper button:disabled { opacity: 0.35; cursor: default; }
.stepper output {
  min-width: 34px;
  text-align: center;
  font-size: 14px;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
}

/* promo */

.promo { display: grid; grid-template-columns: 1fr auto; gap: 8px; margin-top: 14px; }
.promo input { text-transform: uppercase; letter-spacing: 0.08em; }
.promo.is-applied input { color: var(--green); border-color: rgba(53, 211, 153, 0.4); }

/* ── summary + total ────────────────────────────────────────── */

.summary { margin: 16px 0 0; display: grid; gap: 7px; font-size: 13px; }
.summary div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  animation: rowIn 0.35s var(--spring) both;
}
.summary div b { font-weight: 500; color: var(--text); }
.summary div.is-credit b { color: var(--green); }

@keyframes rowIn { from { opacity: 0; transform: translateY(-4px); } }

.total {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-top: 14px;
  padding-top: 13px;
  border-top: 1px solid var(--hairline);
  font-size: 13px;
  color: var(--muted);
}
.total strong {
  font-size: 24px;
  font-weight: 650;
  letter-spacing: -0.02em;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

/* ── buttons ────────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 16px;
  font: 650 13.5px/1 var(--ui);
  color: var(--text);
  background: var(--panel-3);
  border: 1px solid var(--hairline-2);
  border-radius: 12px;
  cursor: pointer;
  transition: background 0.18s ease, transform 0.15s ease, opacity 0.2s ease;
}
.btn:hover { background: #2c3038; }
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.5; cursor: default; transform: none; }
.btn svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.btn--wide { width: 100%; margin-top: 16px; height: 46px; border-radius: 13px; }
.btn--soft { background: #1d2127; }
.btn--primary { color: #0b0d10; background: #f2f3f5; border-color: transparent; }
.btn--primary:hover { background: #fff; }
.btn--primary svg { stroke-width: 2; }

.chip-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  padding: 6px 11px;
  font: 600 11.5px/1 var(--ui);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
  border: 1px dashed var(--hairline-2);
  border-radius: 999px;
  cursor: pointer;
  transition: color 0.2s ease, background 0.2s ease;
}
.chip-btn:hover { color: var(--text); background: rgba(255, 255, 255, 0.07); }
.chip-btn svg { width: 12px; height: 12px; fill: none; stroke: var(--green); stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }

/* pay button — morphs into a spinner while charging */

.btn--pay { position: relative; overflow: hidden; }
.btn--pay .btn__spin {
  position: absolute;
  width: 18px; height: 18px;
  border-radius: 50%;
  border: 2px solid rgba(0, 0, 0, 0.25);
  border-top-color: #0b0d10;
  opacity: 0;
  animation: spin 0.7s linear infinite;
}
.btn--pay.is-busy { pointer-events: none; }
.btn--pay.is-busy .btn__label { opacity: 0; transform: translateY(6px); }
.btn--pay.is-busy .btn__spin { opacity: 1; }
.btn__label { display: inline-flex; gap: 5px; transition: opacity 0.25s ease, transform 0.25s ease; }
.btn__label b { font-weight: 700; font-variant-numeric: tabular-nums; }

@keyframes spin { to { transform: rotate(360deg); } }

.fineprint {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 12px 0 0;
  font-size: 11px;
  color: var(--faint);
}
.fineprint svg { width: 12px; height: 12px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.6; }

/* ── card visual ────────────────────────────────────────────── */

.card3d {
  perspective: 900px;
  margin-bottom: 4px;
}
.card3d__inner {
  --tx: 0deg;  /* pointer tilt */
  --ty: 0deg;
  --flip: 0deg;
  position: relative;
  height: 132px;
  transform-style: preserve-3d;
  transform: rotateX(var(--tx)) rotateY(calc(var(--ty) + var(--flip)));
  transition: transform 0.45s var(--spring);
  will-change: transform;
}
.card3d.is-flipped .card3d__inner { --flip: 180deg; }

.card3d__face {
  position: absolute;
  inset: 0;
  padding: 15px 17px;
  display: flex;
  flex-direction: column;
  border-radius: 15px;
  backface-visibility: hidden;
  overflow: hidden;
  background: linear-gradient(135deg, #2b3038 0%, #191d23 55%, #23272e 100%);
  border: 1px solid var(--hairline-2);
  box-shadow: 0 14px 30px -12px rgba(0, 0, 0, 0.9);
}
.card3d__face--back { transform: rotateY(180deg); padding: 0; justify-content: flex-start; }

.card3d__sheen {
  position: absolute;
  inset: -50%;
  background: linear-gradient(115deg, transparent 42%, rgba(255, 255, 255, 0.14) 50%, transparent 58%);
  transform: translateX(-30%);
  animation: sheen 6s ease-in-out infinite;
}
@keyframes sheen {
  0%, 65%, 100% { transform: translateX(-40%); }
  80% { transform: translateX(40%); }
}

.chip {
  width: 34px; height: 25px;
  display: flex;
  flex-direction: column;
  justify-content: space-evenly;
  padding: 4px;
  border-radius: 6px;
  background: linear-gradient(160deg, #e3c877, #b48f3c);
}
.chip i { height: 1px; background: rgba(0, 0, 0, 0.25); }

.brand {
  position: absolute;
  top: 15px; right: 17px;
  font-size: 13px;
  font-weight: 800;
  font-style: italic;
  letter-spacing: 0.08em;
  color: #e9ecef;
  transition: opacity 0.25s ease, transform 0.35s var(--spring);
}
.brand.is-swap { opacity: 0; transform: translateY(-6px); }

.card3d__number {
  margin-top: auto;
  font-family: var(--mono);
  font-size: 16.5px;
  letter-spacing: 0.09em;
  color: #f0f2f4;
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.5);
}
.card3d__foot {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-top: 10px;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: #aeb4bc;
  text-transform: uppercase;
}
.card3d__foot b { font-weight: 600; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }

.magstripe { display: block; height: 34px; margin-top: 16px; background: #0c0e11; }
.cvc-strip {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  height: 30px;
  margin: 16px 17px 0;
  padding: 0 10px;
  border-radius: 4px;
  background: repeating-linear-gradient(135deg, #d9dbdf 0 6px, #cfd2d6 6px 12px);
}
.cvc-strip i {
  font-family: var(--mono);
  font-style: normal;
  font-size: 13px;
  letter-spacing: 0.15em;
  color: #14171b;
}

/* ── authorisation pane ─────────────────────────────────────── */

.pane--auth { display: grid; justify-items: center; text-align: center; padding-top: 26px; }

.seal { position: relative; width: 74px; height: 74px; }
.seal svg { position: absolute; inset: 0; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.seal__ring { stroke: var(--hairline-2); stroke-width: 3; }
.seal__ring circle { stroke-dasharray: 289; stroke-dashoffset: 289; transition: stroke-dashoffset 0.9s ease; }
.seal__check { stroke: var(--green); stroke-width: 8; }
.seal__check path { stroke-dasharray: 90; stroke-dashoffset: 90; }

.seal__burst {
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid var(--green);
  opacity: 0;
}

.seal.is-working .seal__ring { animation: spin 1.1s linear infinite; }
.seal.is-working .seal__ring circle { stroke: var(--accent); stroke-dashoffset: 200; }
.seal.is-done .seal__ring { stroke: var(--green); }
.seal.is-done .seal__ring circle { stroke: var(--green); stroke-dashoffset: 0; }
.seal.is-done .seal__check path { animation: draw 0.4s 0.15s ease forwards; }
.seal.is-done .seal__burst { animation: burst 0.7s 0.15s ease-out forwards; }

@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes burst {
  0%   { opacity: 0.9; transform: scale(0.85); }
  100% { opacity: 0;   transform: scale(1.7); }
}

.checklist {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  width: 100%;
  max-width: 260px;
  font-size: 13px;
  text-align: left;
  color: var(--faint);
}
.checklist li {
  position: relative;
  padding-left: 24px;
  opacity: 0.45;
  transition: opacity 0.3s ease, color 0.3s ease;
}
.checklist li::before {
  content: "";
  position: absolute;
  left: 0; top: 3px;
  width: 13px; height: 13px;
  border-radius: 50%;
  border: 1.5px solid currentColor;
  transition: border-color 0.3s ease, background 0.3s ease;
}
.checklist li::after {
  content: "";
  position: absolute;
  left: 4px; top: 7.5px;
  width: 5px; height: 2.5px;
  border-left: 2px solid #0b0d10;
  border-bottom: 2px solid #0b0d10;
  transform: rotate(-45deg) scale(0);
  transition: transform 0.3s var(--spring);
}
.checklist li.is-active { opacity: 1; color: var(--text); }
.checklist li.is-active::before { border-color: var(--accent); border-right-color: transparent; animation: spin 0.7s linear infinite; }
.checklist li.is-done { opacity: 1; color: var(--muted); }
.checklist li.is-done::before { border-color: var(--green); background: var(--green); animation: none; }
.checklist li.is-done::after { transform: rotate(-45deg) scale(1); }

.approved {
  width: 100%;
  margin-top: 20px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.4s ease, transform 0.5s var(--spring);
  pointer-events: none;
}
.approved.is-shown { opacity: 1; transform: none; pointer-events: auto; }
.approved h2 { margin: 0; font-size: 17px; font-weight: 650; }
.approved p { margin: 5px 0 0; font-size: 12.5px; color: var(--muted); font-variant-numeric: tabular-nums; }

/* ── paper slot ─────────────────────────────────────────────── */

.slot {
  position: relative;
  height: 30px;
  margin: 12px -14px 0;
  border-radius: 0 0 26px 26px;
  background: linear-gradient(180deg, #101215, #0b0d10);
  display: grid;
  place-items: center;
  overflow: hidden;
}
.slot__mouth {
  width: calc(var(--paper-w) + 16px);
  height: 7px;
  border-radius: 4px;
  background: #000;
  box-shadow:
    0 -1px 0 rgba(255, 255, 255, 0.07),
    0 1px 0 rgba(255, 255, 255, 0.04),
    0 0 14px rgba(0, 0, 0, 0.9) inset;
}
.slot__head {
  position: absolute;
  width: var(--paper-w);
  height: 1.5px;
  border-radius: 2px;
  background: linear-gradient(90deg, transparent, rgba(120, 220, 255, 0.85), transparent);
  opacity: 0;
  filter: blur(0.4px);
  transition: opacity 0.2s ease;
}
body.is-printing .slot__head { opacity: 1; animation: head 0.42s linear infinite; }
@keyframes head {
  0%, 100% { transform: translateX(-24%) scaleX(0.6); }
  50%      { transform: translateX(24%)  scaleX(0.6); }
}

/* ── paper ──────────────────────────────────────────────────── */

.paper {
  position: relative;
  z-index: 1;
  margin-top: -14px;
  width: var(--paper-w);
  transform-origin: top center;
  filter: drop-shadow(0 18px 22px rgba(0, 0, 0, 0.55));
  will-change: transform;
  touch-action: none;
}
.paper.is-grabbable { cursor: grab; }
.paper.is-grabbing { cursor: grabbing; }

.paper__window { height: 0; overflow: hidden; will-change: height; }

.receipt {
  position: relative;
  padding: 22px 20px calc(18px + var(--tooth));
  color: var(--ink);
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.5;
  background:
    repeating-linear-gradient(180deg, rgba(0, 0, 0, 0.028) 0 1px, transparent 1px 3px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.06), transparent 7%, transparent 93%, rgba(0, 0, 0, 0.06)),
    var(--paper);
  /* torn zigzag bottom edge */
  -webkit-mask:
    linear-gradient(#000 0 0) 0 0 / 100% calc(100% - var(--tooth)) no-repeat,
    conic-gradient(from -45deg at 50% 100%, #000 0 90deg, #0000 0) 0 100% / calc(var(--tooth) * 2) var(--tooth) repeat-x;
  mask:
    linear-gradient(#000 0 0) 0 0 / 100% calc(100% - var(--tooth)) no-repeat,
    conic-gradient(from -45deg at 50% 100%, #000 0 90deg, #0000 0) 0 100% / calc(var(--tooth) * 2) var(--tooth) repeat-x;
}
/* once torn off, the top edge is ragged too */
.paper.is-torn .receipt {
  -webkit-mask:
    linear-gradient(#000 0 0) 0 var(--tooth) / 100% calc(100% - var(--tooth) * 2) no-repeat,
    conic-gradient(from -45deg at 50% 100%, #000 0 90deg, #0000 0) 0 100% / calc(var(--tooth) * 2) var(--tooth) repeat-x,
    conic-gradient(from 135deg at 50% 0, #000 0 90deg, #0000 0) 0 0 / calc(var(--tooth) * 2) var(--tooth) repeat-x;
  mask:
    linear-gradient(#000 0 0) 0 var(--tooth) / 100% calc(100% - var(--tooth) * 2) no-repeat,
    conic-gradient(from -45deg at 50% 100%, #000 0 90deg, #0000 0) 0 100% / calc(var(--tooth) * 2) var(--tooth) repeat-x,
    conic-gradient(from 135deg at 50% 0, #000 0 90deg, #0000 0) 0 0 / calc(var(--tooth) * 2) var(--tooth) repeat-x;
}

.receipt__logo {
  width: 34px; height: 34px;
  margin: 0 auto 18px;
  display: grid; place-items: center;
  border-radius: 7px;
  background: #17181b;
}
.receipt__logo svg { width: 19px; height: 19px; fill: var(--paper); }

.rule { height: 0; margin: 13px 0; border: 0; border-top: 1px dashed rgba(0, 0, 0, 0.22); }

.line {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  font-variant-numeric: tabular-nums;
}
.line + .line { margin-top: 4px; }
.line__k { letter-spacing: 0.04em; }
.line__v { white-space: nowrap; }

.line--lead .line__k { font-weight: 700; letter-spacing: 0.09em; }
.line--lead .line__v { font-weight: 700; }
.sub { margin: 2px 0 0; color: var(--ink-soft); letter-spacing: 0.02em; }

.line--grand {
  margin-top: 12px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
}
.line--grand .line__v { font-size: 15px; }

.line--meta { color: var(--ink-soft); }
.line--meta .line__v { color: var(--ink); }
.line--credit .line__v { font-weight: 700; }

.barcode { display: flex; align-items: flex-end; gap: 2px; height: 46px; margin: 22px 0 6px; }
.barcode i { display: block; height: 100%; background: var(--ink); border-radius: 0.5px; }
.barcode__caption {
  margin: 0;
  text-align: center;
  font-size: 9px;
  letter-spacing: 0.4em;
  color: var(--ink-faint);
}

.tear-hint {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin: 12px 0 0;
  font-size: 11.5px;
  color: var(--faint);
  animation: nudge 1.8s ease-in-out infinite;
}
.tear-hint svg { width: 13px; height: 13px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
@keyframes nudge {
  0%, 100% { transform: translateY(0); opacity: 0.7; }
  50%      { transform: translateY(4px); opacity: 1; }
}

/* ── controls ───────────────────────────────────────────────── */

.controls {
  display: flex;
  gap: 10px;
  padding: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--hairline);
  backdrop-filter: blur(8px);
}
.controls .btn { height: 36px; border-radius: 999px; font-size: 12.5px; }
.btn[aria-pressed="false"] .wave { opacity: 0.25; }

/* ── responsive ─────────────────────────────────────────────── */

@media (max-width: 480px) {
  :root { --printer-w: 100%; --paper-w: 262px; }
  body { padding: 20px 14px 14px; gap: 18px; }
  .steps { gap: 10px; font-size: 11px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.05s !important; }
}