/* ==========================================================================
   Coffee Loyalty Card — design tokens + styles
   Direction: brief-fixed palettes/type (DESIGN-BRIEF.md §2-3). Card is the
   hero: a tactile wallet object, not a marketing page. See IMAGES.md for
   asset provenance.
   ========================================================================== */

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body { min-height: 100dvh; }
img, svg { display: block; max-width: 100%; }
button, input { font: inherit; color: inherit; }
button { cursor: pointer; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, p { margin: 0; }
a { color: inherit; }

/* ---------- design tokens: static ---------- */
:root {
  --font-body-en: 'Inter', system-ui, -apple-system, sans-serif;
  --font-body-ar: 'IBM Plex Sans Arabic', system-ui, sans-serif;
  --font-display-en: 'Fraunces', Georgia, serif;
  --font-display-en-minimal: 'DM Serif Display', Georgia, serif;
  --font-display-en-kraft: 'Caveat', cursive;
  /* was Reem Kufi per the brief; its kufic letterforms distorted ة/tatweel
     shapes at display size on review — swapped for IBM Plex Sans Arabic
     bold, which reads cleanly at the same sizes. */
  --font-display-ar: 'IBM Plex Sans Arabic', system-ui, sans-serif;
  --font-num: 'Inter', system-ui, sans-serif;

  --radius-card: 20px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --radius-pill: 999px;

  --space-1: 4px; --space-2: 8px; --space-3: 12px; --space-4: 16px;
  --space-5: 24px; --space-6: 32px; --space-7: 48px;

  --dur: 160ms;
  --ease: cubic-bezier(.2,.7,.3,1);

  --tap-min: 44px;
  --shadow-card: 0 16px 32px -14px rgba(20,10,4,.35), 0 2px 8px rgba(20,10,4,.14);
  --shadow-pop: 0 20px 48px -12px rgba(20,10,4,.4);
}

/* ---------- palette x mode blocks (brief §2, muted text darkened for
   AA-4.5:1 in light modes; --on-accent/--on-primary chosen per pair,
   see verification notes) ---------- */
:root[data-palette="espresso"][data-mode="light"] {
  --bg:#F7F1E8; --surface:#FFFFFF; --primary:#5B3A29; --accent:#C8873F;
  --text:#2B1D16; --muted:#6B584B; --empty:#E8DCCB; --success:#3E7C4F;
  --on-primary:#FFFFFF; --on-accent:#2B1D16;
}
:root[data-palette="espresso"][data-mode="dark"] {
  --bg:#1A1411; --surface:#2A211C; --primary:#D8A77B; --accent:#E0A458;
  --text:#F3E9DD; --muted:#A8968A; --empty:#3A2E27; --success:#6FBF83;
  --on-primary:#2A211C; --on-accent:#2A211C;
}
:root[data-palette="sage"][data-mode="light"] {
  --bg:#F3F5EF; --surface:#FFFFFF; --primary:#4F6B52; --accent:#C79A4A;
  --text:#1E2A22; --muted:#556259; --empty:#DFE6DC; --success:#3E7C4F;
  --on-primary:#FFFFFF; --on-accent:#1E2A22;
}
:root[data-palette="sage"][data-mode="dark"] {
  --bg:#131815; --surface:#1F2622; --primary:#9FC2A2; --accent:#DDB86B;
  --text:#E8EFE9; --muted:#9AA89E; --empty:#2C3530; --success:#6FBF83;
  --on-primary:#1F2622; --on-accent:#1F2622;
}
:root[data-palette="terracotta"][data-mode="light"] {
  --bg:#F4E9DA; --surface:#FBF4EA; --primary:#B5552E; --accent:#3F5A4A;
  --text:#3A2418; --muted:#6E5646; --empty:#E6D3BC; --success:#3E7C4F;
  --on-primary:#FFFFFF; --on-accent:#FBF4EA;
}
:root[data-palette="terracotta"][data-mode="dark"] {
  --bg:#1C1512; --surface:#2B201A; --primary:#E48A62; --accent:#8FB39D;
  --text:#F4E6D8; --muted:#B59C8A; --empty:#3B2C23; --success:#6FBF83;
  --on-primary:#2B201A; --on-accent:#2B201A;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body-en);
  line-height: 1.5;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
html[lang="ar"] body { font-family: var(--font-body-ar); }
:lang(ar) { font-family: var(--font-body-ar); }
.display:lang(ar), html[lang="ar"] .display { font-family: var(--font-display-ar) !important; font-weight: 700; line-height: 1.2; }
.display { font-family: var(--font-display-en); line-height: 1.2; font-weight: 600; }
[data-style="minimal"] .display:not(:lang(ar)) { font-family: var(--font-display-en-minimal); }
[data-style="kraft"] .display:not(:lang(ar)) { font-family: var(--font-display-en-kraft); font-weight: 700; }
.num { font-family: var(--font-num); font-variant-numeric: tabular-nums; font-weight: 700; }
.caption { font-size: 13px; color: var(--muted); }
.ar-sub { display: block; color: var(--muted); font-size: .92em; margin-block-start: 2px; }
/* Inside a filled button (.primary/.success/.danger), var(--muted) reads
   against the SURFACE, not the button's own fill — on a dark primary button
   that's near-invisible. Inherit the button's own text colour instead and
   dim it, so it always contrasts with whatever it's actually sitting on. */
.btn .ar-sub { color: inherit; opacity: .82; margin-block-start: 3px; }
.btn:has(.ar-sub) { padding-block: 14px; line-height: 1.3; }

:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: var(--radius-sm); }

/* ---------- app shell ---------- */
.app {
  max-width: 480px;
  margin-inline: auto;
  min-height: 100dvh;
  padding-block-end: var(--space-6);
  position: relative;
}
@media (min-width: 481px) {
  body { background: color-mix(in srgb, var(--bg) 70%, #000 6%); }
  .app { background: var(--bg); box-shadow: 0 0 0 1px rgba(0,0,0,.06); min-height: 100dvh; }
}

/* ---------- changelog block ---------- */
.changelog {
  margin: var(--space-3) var(--space-4) 0;
  border: 1px solid color-mix(in srgb, var(--text) 14%, transparent);
  border-radius: var(--radius-md);
  background: var(--surface);
  font-size: 13px;
  color: var(--muted);
}
.changelog summary {
  padding: var(--space-3) var(--space-4);
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.changelog summary::-webkit-details-marker { display: none; }
.changelog summary::before { content: "▸"; transition: transform var(--dur) var(--ease); }
.changelog[open] summary::before { transform: rotate(90deg); }
.changelog-body { padding: 0 var(--space-4) var(--space-4); }
.changelog-round + .changelog-round { margin-block-start: var(--space-4); padding-block-start: var(--space-3); border-block-start: 1px dashed color-mix(in srgb, var(--text) 18%, transparent); }
.changelog-round h4 { font-size: 13px; color: var(--text); margin-block-end: var(--space-1); }

/* ---------- topbar / hero band ---------- */
.topbar {
  position: relative;
  /* The hero photo has a fixed composition (cup on the physical right,
     clear space on the physical left) — it does not mirror. So this band's
     chrome stays physically LTR regardless of page language; only the
     wallet-card below (plain background, no baked-in graphic) mirrors. */
  direction: ltr;
  padding: var(--space-5) var(--space-4) var(--space-4);
  background-image: linear-gradient(180deg, rgba(10,6,3,.32), var(--bg) 96%), url(img/hero-coffee-mobile.webp);
  background-size: cover;
  background-position: center 35%;
  border-radius: 0 0 var(--radius-card) var(--radius-card);
  overflow: clip;
}
@media (min-width: 600px), (min-resolution: 2dppx) {
  .topbar { background-image: linear-gradient(180deg, rgba(10,6,3,.32), var(--bg) 96%), url(img/hero-coffee.webp); }
}
.topbar-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}
.shop-title {
  font-size: 22px;
  color: #fff;
  text-shadow: 0 2px 8px rgba(0,0,0,.45);
  /* capped, not flex:1 — stays in the hero's clear left column, never
     stretches into the cup graphic on the right (LTR or RTL content) */
  flex: 0 1 auto;
  max-width: 58%;
  min-width: 0;
  overflow-wrap: anywhere;
}
.icon-btn {
  inline-size: var(--tap-min); block-size: var(--tap-min);
  border-radius: var(--radius-pill);
  border: none;
  background: rgba(255,255,255,.24);
  backdrop-filter: blur(6px);
  color: #fff;
  display: grid; place-items: center;
  transition: transform var(--dur) var(--ease), background var(--dur);
}
.icon-btn:active { transform: scale(.92); }
.icon-btn svg { inline-size: 22px; block-size: 22px; }

.try-look-btn {
  margin-block-start: var(--space-4);
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-pill);
  border: none;
  background: rgba(255,255,255,.92);
  color: var(--primary);
  font-weight: 600; font-size: 14px;
  box-shadow: var(--shadow-card);
  min-height: var(--tap-min);
}

/* ---------- wallet card ---------- */
main.screen { padding: 0 var(--space-4) var(--space-5); }

.wallet-card {
  position: relative;
  background: var(--surface);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: var(--space-4) var(--space-4) var(--space-3);
  isolation: isolate;
  overflow: hidden;
}
.wallet-card::before { content: ""; position: absolute; inset: 0; z-index: -1; border-radius: inherit; }

/* classic: subtle bean texture */
[data-style="classic"] .wallet-card::before {
  background-color: var(--text);
  opacity: .05;
  -webkit-mask: url(img/bean-pattern.svg) repeat; mask: url(img/bean-pattern.svg) repeat;
  -webkit-mask-size: 90px 90px; mask-size: 90px 90px;
}
.display.shop-name-card { font-size: 18px; }

/* minimal: flat, bordered, no texture */
[data-style="minimal"] .wallet-card { box-shadow: none; border: 1px solid color-mix(in srgb, var(--text) 20%, transparent); }

/* kraft: paper texture + tilt */
[data-style="kraft"] .wallet-card {
  background-image: linear-gradient(color-mix(in srgb, var(--surface) 72%, transparent), color-mix(in srgb, var(--surface) 72%, transparent)), url(img/kraft-texture.webp);
  background-size: cover;
  box-shadow: var(--shadow-card), inset 0 0 0 1px color-mix(in srgb, var(--text) 8%, transparent);
}

.card-top { display: flex; align-items: center; gap: var(--space-3); margin-block-end: var(--space-4); }
.logo-badge {
  /* brief calls for a 40px circle; bumped to the 44px tap-target floor
     (rule 6) — barely visible, keeps long-press for staff mode reachable */
  flex-shrink: 0;
  inline-size: var(--tap-min); block-size: var(--tap-min); border-radius: var(--radius-pill);
  background: var(--primary); color: var(--on-primary);
  border: none; display: grid; place-items: center;
  padding: 9px;
}
.logo-badge svg { inline-size: 100%; block-size: 100%; }
.card-name { flex: 1; min-width: 0; }
.card-name .display { font-size: 19px; overflow-wrap: anywhere; }
.card-chip {
  flex-shrink: 0;
  font-size: 11px; font-weight: 500; text-align: center; line-height: 1.35;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--primary) 12%, var(--surface));
  color: var(--primary);
  white-space: nowrap;
}

/* stamp grid: 2 rows always (deviation from brief's literal 4-5/row table,
   noted in reply — keeps the card's height consistent across 6..12 and
   circles close to the 44-52px target at every count) */
.stamp-grid {
  display: grid;
  grid-template-columns: repeat(var(--cols), 1fr);
  gap: var(--space-2);
  margin-block-end: var(--space-4);
}
.stamp {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-pill);
  display: grid; place-items: center;
  background: var(--empty);
}
.stamp.is-empty { background: transparent; border: 2px dashed var(--empty); }
.stamp.is-filled { background: var(--accent); color: var(--on-accent); }
.stamp .stamp-icon { inline-size: 55%; block-size: 55%; background: currentColor; -webkit-mask: var(--icon-url) center/contain no-repeat; mask: var(--icon-url) center/contain no-repeat; }
.stamp.is-empty .stamp-icon { display: none; }
.stamp.is-reward { background: transparent; border: 2px solid var(--accent); }
.stamp.is-reward .reward-mini { inline-size: 60%; block-size: 60%; background: var(--accent); -webkit-mask: url(img/reward-mini.svg) center/contain no-repeat; mask: url(img/reward-mini.svg) center/contain no-repeat; }
.stamp.is-reward.is-ready { background: var(--accent); animation: reward-glow 1.8s ease-in-out infinite; }
.stamp.is-reward.is-ready .reward-mini { background: var(--on-accent); }
.stamp.just-stamped { animation: stamp-in 150ms var(--ease); }

[data-style="kraft"] .stamp.is-filled { border-radius: 46% 54% 52% 48% / 52% 48% 54% 46%; }
[data-style="minimal"] .stamp { background: transparent; border: 1.5px solid var(--empty); }
[data-style="minimal"] .stamp.is-filled { background: transparent; border-color: var(--accent); color: var(--accent); }
[data-style="minimal"] .stamp.is-filled .stamp-icon { background: var(--accent); }

@keyframes stamp-in { from { transform: scale(1.2); opacity: .4; } to { transform: scale(1); opacity: 1; } }
@keyframes reward-glow { 0%,100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 55%, transparent); } 50% { box-shadow: 0 0 0 8px color-mix(in srgb, var(--accent) 0%, transparent); } }

.card-bottom { display: flex; align-items: center; justify-content: space-between; padding-block-start: var(--space-2); border-block-start: 1px dashed color-mix(in srgb, var(--text) 14%, transparent); }
.member-id { font-size: 13px; color: var(--muted); letter-spacing: .04em; }
.qr-mark { inline-size: 34px; block-size: 34px; color: var(--muted); }
.qr-mark.big { inline-size: 160px; block-size: 160px; color: var(--text); margin-inline: auto; }

/* kraft: fixed per-index rotation table (never randomised at render) */
[data-style="kraft"] .stamp:nth-of-type(1) { rotate: -4deg; } [data-style="kraft"] .stamp:nth-of-type(2) { rotate: 3deg; }
[data-style="kraft"] .stamp:nth-of-type(3) { rotate: -2deg; } [data-style="kraft"] .stamp:nth-of-type(4) { rotate: 5deg; }
[data-style="kraft"] .stamp:nth-of-type(5) { rotate: -6deg; } [data-style="kraft"] .stamp:nth-of-type(6) { rotate: 2deg; }
[data-style="kraft"] .stamp:nth-of-type(7) { rotate: 4deg; } [data-style="kraft"] .stamp:nth-of-type(8) { rotate: -3deg; }
[data-style="kraft"] .stamp:nth-of-type(9) { rotate: -5deg; } [data-style="kraft"] .stamp:nth-of-type(10) { rotate: 3deg; }
[data-style="kraft"] .stamp:nth-of-type(11) { rotate: -2deg; } [data-style="kraft"] .stamp:nth-of-type(12) { rotate: 6deg; }

/* ---------- progress + home actions ---------- */
.progress-line { text-align: center; font-size: 15px; margin-block: var(--space-4) var(--space-3); }
.progress-line .num { font-size: 1em; font-weight: 700; }
.almost-banner {
  text-align: center; font-size: 14px; font-weight: 500; color: var(--primary);
  background: color-mix(in srgb, var(--primary) 10%, var(--surface));
  border-radius: var(--radius-md); padding: var(--space-3); margin-block-end: var(--space-4);
}

.home-actions { display: flex; gap: var(--space-3); }
.btn {
  min-height: var(--tap-min);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-pill);
  border: 1.5px solid transparent;
  font-weight: 600; font-size: 15px;
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  transition: transform var(--dur) var(--ease), background var(--dur), opacity var(--dur);
  background: var(--surface); color: var(--text); border-color: color-mix(in srgb, var(--text) 18%, transparent);
}
.btn:active { transform: scale(.97); }
.btn.primary { background: var(--primary); color: var(--on-primary); border-color: transparent; }
.btn.success { background: var(--success); color: #fff; border-color: transparent; }
.btn.ghost { background: transparent; border-color: color-mix(in srgb, var(--text) 24%, transparent); }
.btn.danger { color: #B3261E; border-color: color-mix(in srgb, #B3261E 40%, transparent); background: transparent; }
.btn.block { width: 100%; }
.btn.big { min-height: 56px; font-size: 17px; }
.btn:disabled { opacity: .45; pointer-events: none; }
.home-actions .btn { flex: 1; }

.install-hint { display: flex; align-items: center; gap: var(--space-2); margin-block-start: var(--space-4); font-size: 13px; color: var(--muted); background: color-mix(in srgb, var(--primary) 8%, transparent); padding: var(--space-3); border-radius: var(--radius-md); }
.install-hint button { margin-inline-start: auto; min-inline-size: var(--tap-min); min-block-size: var(--tap-min); background: none; border: none; color: var(--primary); display: grid; place-items: center; }

.staff-link-row { text-align: center; margin-block-start: var(--space-6); }
.staff-link { background: none; border: none; color: var(--muted); font-size: 13px; text-decoration: underline; min-height: var(--tap-min); padding: var(--space-2); }

/* ---------- dialogs (native <dialog>) ---------- */
dialog { border: none; padding: 0; background: transparent; color: inherit; max-width: min(440px, 92vw); }
dialog::backdrop { background: rgba(15,10,6,.55); }
.dlg-panel { background: var(--bg); color: var(--text); border-radius: var(--radius-card); padding: var(--space-5) var(--space-4); }
dialog[open] .dlg-panel { animation: pop-in 180ms var(--ease); }
@keyframes pop-in { from { transform: scale(.94); opacity: 0; } to { transform: scale(1); opacity: 1; } }

.dlg-title { margin-block-end: var(--space-2); font-size: 20px; }
.dlg-close-row { display: flex; justify-content: flex-end; margin-block-start: var(--space-4); }

/* bottom-sheet dialogs: settings, history, staff */
.sheet { position: fixed; inset-inline: 0; inset-block-end: 0; margin: 0; max-width: 480px; margin-inline: auto; width: 100%; max-height: 88dvh; }
.sheet .dlg-panel { border-radius: var(--radius-card) var(--radius-card) 0 0; max-height: 88dvh; overflow-y: auto; padding-block-end: var(--space-6); }
dialog.sheet[open] .dlg-panel { animation: sheet-up 200ms var(--ease); }
@keyframes sheet-up { from { transform: translateY(16px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.sheet-handle { inline-size: 40px; block-size: 4px; background: var(--empty); border-radius: var(--radius-pill); margin: 0 auto var(--space-4); }

/* pin pad */
.pin-hint { font-size: 13px; color: var(--muted); margin-block-end: var(--space-4); }
.pin-display { display: flex; gap: var(--space-3); justify-content: center; margin-block-end: var(--space-4); }
.pin-dot { inline-size: 14px; block-size: 14px; border-radius: 50%; border: 2px solid var(--muted); }
.pin-dot.filled { background: var(--primary); border-color: var(--primary); }
.pin-error { color: #B3261E; font-size: 13px; text-align: center; margin-block-end: var(--space-3); }
.pin-keypad { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); margin-block-end: var(--space-4); }
.pin-key { min-height: 56px; border-radius: var(--radius-md); border: 1px solid color-mix(in srgb, var(--text) 16%, transparent); background: var(--surface); font-size: 20px; font-weight: 600; }
.pin-key:active { background: var(--empty); }

/* settings panel */
.settings-section { margin-block-end: var(--space-5); }
.settings-section h3 { font-size: 13px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); margin-block-end: var(--space-3); }
.chip-row { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.chip-btn {
  min-height: 44px; padding: 0 var(--space-4); border-radius: var(--radius-pill);
  border: 1.5px solid color-mix(in srgb, var(--text) 18%, transparent);
  background: var(--surface); font-size: 14px; font-weight: 500;
  display: inline-flex; align-items: center; gap: var(--space-2);
}
.chip-btn[aria-pressed="true"] { border-color: var(--primary); background: color-mix(in srgb, var(--primary) 14%, var(--surface)); color: var(--primary); font-weight: 600; }
.swatch { inline-size: 18px; block-size: 18px; border-radius: 50%; flex-shrink: 0; box-shadow: inset 0 0 0 1px rgba(0,0,0,.12); }
.chip-btn .stamp-icon-preview { inline-size: 18px; block-size: 18px; background: currentColor; }
.field { display: flex; flex-direction: column; gap: var(--space-1); margin-block-end: var(--space-3); }
.field label { font-size: 13px; font-weight: 500; color: var(--muted); }
.field input[type=text] { min-height: 44px; padding: 0 var(--space-3); border-radius: var(--radius-md); border: 1.5px solid color-mix(in srgb, var(--text) 18%, transparent); background: var(--surface); color: var(--text); }
.settings-footer { display: flex; flex-direction: column; gap: var(--space-3); margin-block-start: var(--space-6); }
.link-row { display: flex; gap: var(--space-2); align-items: center; }
.link-row input { flex: 1; min-height: 44px; padding: 0 var(--space-3); border-radius: var(--radius-md); border: 1px solid color-mix(in srgb, var(--text) 18%, transparent); background: var(--surface); font-size: 12px; color: var(--muted); }

/* history */
.history-stats { display: flex; gap: var(--space-3); margin-block-end: var(--space-4); }
.history-stat { flex: 1; background: var(--surface); border-radius: var(--radius-md); padding: var(--space-3); text-align: center; }
.history-stat .num { display: block; font-size: 40px; }
.history-stat .caption { display: block; }
.history-row { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-3) 0; border-block-end: 1px solid color-mix(in srgb, var(--text) 10%, transparent); }
.history-row .dot { inline-size: 8px; block-size: 8px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }
.history-row.reward .dot { background: var(--success); }
.history-empty { text-align: center; color: var(--muted); padding: var(--space-6) var(--space-3); }

/* staff dialog */
.staff-preview { transform: scale(.94); margin-block-end: var(--space-4); pointer-events: none; }
.staff-actions { display: flex; flex-direction: column; gap: var(--space-3); }

/* reward celebration */
.dlg-reward .dlg-panel { text-align: center; position: relative; overflow: hidden; }
.confetti-field { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.reward-illustration { inline-size: 140px; block-size: 140px; margin: 0 auto var(--space-4); }
.reward-illustration svg {
  inline-size: 100%; block-size: 100%;
  --reward-primary: var(--primary); --reward-accent: var(--accent);
  --reward-bow: var(--accent); --reward-steam: var(--muted);
}
.reward-actions { display: flex; flex-direction: column; gap: var(--space-3); margin-block-start: var(--space-5); }
.confetti-piece { position: absolute; inline-size: 16px; block-size: 16px; background: currentColor; -webkit-mask: var(--piece-url) center/contain no-repeat; mask: var(--piece-url) center/contain no-repeat; top: 40%; left: 50%; opacity: 0; }
@media (prefers-reduced-motion: no-preference) {
  .confetti-piece.burst { animation: confetti-burst 900ms ease-out forwards; }
}
@keyframes confetti-burst {
  0% { opacity: 1; transform: translate(-50%,-50%) scale(.4); }
  100% { opacity: 0; transform: translate(calc(-50% + var(--dx)), calc(-50% + var(--dy))) scale(1) rotate(var(--rot)); }
}

/* toast */
.toast {
  position: fixed; inset-inline: 0; bottom: var(--space-5); margin-inline: auto;
  width: max-content; max-width: 90vw; z-index: 50;
  background: var(--text); color: var(--bg); padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-pill); font-size: 14px; font-weight: 500;
  box-shadow: var(--shadow-pop);
}
.toast.show { animation: toast-in-out 2.4s var(--ease) forwards; }
@keyframes toast-in-out {
  0% { opacity: 0; transform: translateY(12px); }
  10%, 85% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(8px); }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}

/* ---------- visually hidden ---------- */
.vh { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }