/* Yekan Bakh (Fontiran, licensed): one variable file for all weights. The file is not in git
   (paid font, public repo); without it the fallback fonts below are used. */
@font-face {
  font-family: YekanBakh;
  src: url("/fonts/YekanBakh-VF.woff2") format("woff2-variations"), url("/fonts/YekanBakh-VF.woff2") format("woff2");
  font-weight: 100 1000;
  font-style: normal;
  font-display: swap;
}

/*
 * Two design systems, one stylesheet.
 *   - Default: Google Material Design 3 (tokens: color roles, shape, elevation, state layers).
 *   - html[data-platform="ios"]: Apple iOS look (system font, grouped lists, tab bar).
 * /platform.js sets data-platform before first paint.
 */

/* ============================================================ Material 3 tokens */
:root {
  --primary: #006a60; --on-primary: #ffffff;
  --primary-container: #9ef2e4; --on-primary-container: #00201c;
  --secondary-container: #cce8e2; --on-secondary-container: #05201c;
  --tertiary-container: #ffddb3; --on-tertiary-container: #291800;
  --error: #ba1a1a; --on-error: #ffffff;
  --error-container: #ffdad6; --on-error-container: #410002;
  --success: #1b6d2f; --success-container: #c8f0cc; --on-success-container: #002108;
  --surface: #f4fbf8; --on-surface: #161d1c; --on-surface-variant: #3f4947;
  --surface-lowest: #ffffff; --surface-low: #eff5f2; --surface-container: #e9efec;
  --surface-high: #e3eae7; --surface-highest: #dde4e1;
  --outline: #6f7977; --outline-variant: #bec9c6;
  --inverse-surface: #2b3230; --inverse-on-surface: #ecf2ef;

  --shape-xs: 4px; --shape-sm: 8px; --shape-md: 12px; --shape-lg: 16px; --shape-xl: 28px; --shape-full: 999px;
  --elev-1: 0 1px 2px rgba(0, 0, 0, .3), 0 1px 3px 1px rgba(0, 0, 0, .15);
  --elev-2: 0 1px 2px rgba(0, 0, 0, .3), 0 2px 6px 2px rgba(0, 0, 0, .15);
  --elev-3: 0 1px 3px rgba(0, 0, 0, .3), 0 4px 8px 3px rgba(0, 0, 0, .15);

  --font: YekanBakh, Roboto, Vazirmatn, "Noto Sans Arabic", "Segoe UI", Tahoma, sans-serif;
  --mono: "Roboto Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;

  /* component tokens (overridden by the iOS theme) */
  --card-bg: var(--surface-low); --card-radius: var(--shape-md); --card-shadow: var(--elev-1);
  --tile-bg: var(--surface-highest);
  --nav-bg: var(--surface-low); --bar-bg: var(--surface-container);
  --btn-h: 40px; --btn-radius: var(--shape-full);
  --field-h: 48px; --field-radius: var(--shape-xs);

  /* aliases used by inline styles */
  --muted: var(--on-surface-variant); --danger: var(--error); --ok: var(--success); --brand: var(--primary);
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --primary: #82d5c8; --on-primary: #003731;
    --primary-container: #005048; --on-primary-container: #9ef2e4;
    --secondary-container: #334b47; --on-secondary-container: #cce8e2;
    --tertiary-container: #5e4200; --on-tertiary-container: #ffddb3;
    --error: #ffb4ab; --on-error: #690005;
    --error-container: #93000a; --on-error-container: #ffdad6;
    --success: #8fd89a; --success-container: #00531c; --on-success-container: #c8f0cc;
    --surface: #0e1513; --on-surface: #dde4e1; --on-surface-variant: #bec9c6;
    --surface-lowest: #090f0e; --surface-low: #161d1c; --surface-container: #1a2120;
    --surface-high: #252b2a; --surface-highest: #2f3635;
    --outline: #899391; --outline-variant: #3f4947;
    --inverse-surface: #dde4e1; --inverse-on-surface: #2b3230;
  }
}

/* ============================================================ iOS tokens */
html[data-platform="ios"] {
  --primary: #007aff; --on-primary: #ffffff;
  --primary-container: #e1eeff; --on-primary-container: #0062cc;
  --secondary-container: rgba(120, 120, 128, .16); --on-secondary-container: #000000;
  --tertiary-container: #fff4d6; --on-tertiary-container: #6b4a00;
  --error: #ff3b30; --on-error: #ffffff;
  --error-container: #ffe5e3; --on-error-container: #c4160c;
  --success: #248a3d; --success-container: #dcf5e1; --on-success-container: #14622a;
  --surface: #f2f2f7; --on-surface: #000000; --on-surface-variant: #6c6c70;
  --surface-lowest: #ffffff; --surface-low: #ffffff; --surface-container: #ffffff;
  --surface-high: #e5e5ea; --surface-highest: #ffffff;
  --outline: #c6c6c8; --outline-variant: #d8d8dc;
  --inverse-surface: rgba(40, 40, 42, .92); --inverse-on-surface: #ffffff;
  --fill: rgba(118, 118, 128, .12);

  --font: YekanBakh, -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Arabic", system-ui, "Helvetica Neue", Tahoma, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, monospace;

  --card-bg: var(--surface-lowest); --card-radius: 16px; --card-shadow: none;
  --tile-bg: var(--surface-lowest);
  --nav-bg: var(--surface); --bar-bg: color-mix(in srgb, var(--surface-lowest) 78%, transparent);
  --btn-h: 50px; --btn-radius: 14px;
  --field-h: 44px; --field-radius: 10px;
}
@media (prefers-color-scheme: dark) {
  html[data-platform="ios"] {
    --primary: #0a84ff; --primary-container: #0b2a4a; --on-primary-container: #6cb4ff;
    --secondary-container: rgba(120, 120, 128, .32); --on-secondary-container: #ffffff;
    --tertiary-container: #3d2f00; --on-tertiary-container: #ffd60a;
    --error: #ff453a; --error-container: #4a1512; --on-error-container: #ff8a82;
    --success: #30d158; --success-container: #0f3a1c; --on-success-container: #7ee29a;
    --surface: #000000; --on-surface: #ffffff; --on-surface-variant: #98989f;
    --surface-lowest: #1c1c1e; --surface-low: #1c1c1e; --surface-container: #1c1c1e;
    --surface-high: #2c2c2e; --surface-highest: #1c1c1e;
    --outline: #48484a; --outline-variant: #38383a;
    --inverse-surface: rgba(72, 72, 74, .94);
    --fill: rgba(118, 118, 128, .24);
  }
}

/* ============================================================ base */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--surface); color: var(--on-surface);
  font: 400 14px/1.75 var(--font); letter-spacing: .01em; -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { margin: 0 0 .5em; line-height: 1.35; }
h1 { font-size: 28px; font-weight: 400; }
h2 { font-size: 20px; font-weight: 500; }
h3 { font-size: 16px; font-weight: 500; }
p { margin: 0 0 .8em; }
ol { margin: 0 0 .8em; padding-inline-start: 1.4em; }
.muted { color: var(--on-surface-variant); }
.small { font-size: 12.5px; }
.ltr { direction: ltr; unicode-bidi: isolate; text-align: left; }
.mono { font-family: var(--mono); }
.nowrap { white-space: nowrap; }
.center { text-align: center; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

html[data-platform="ios"] body { font-size: 16px; line-height: 1.6; letter-spacing: 0; }
html[data-platform="ios"] h1 { font-size: 32px; font-weight: 700; }
html[data-platform="ios"] h2 { font-size: 20px; font-weight: 600; }
html[data-platform="ios"] h3 { font-size: 17px; font-weight: 600; }
html[data-platform="ios"] .small { font-size: 13px; }

/* ============================================================ app shell */
.shell { display: grid; grid-template-columns: 256px minmax(0, 1fr); min-height: 100dvh; }
.side {
  background: var(--nav-bg); padding: 12px; position: sticky; top: 0; height: 100dvh;
  display: flex; flex-direction: column; overflow: auto;
}
.brand { display: flex; align-items: center; gap: 12px; font-size: 20px; font-weight: 500; padding: 16px 16px 20px; }
.brand i { width: 32px; height: 32px; border-radius: var(--shape-md); background: var(--primary); display: inline-grid; place-items: center; flex: none; }
.brand i::after { content: ""; width: 14px; height: 14px; border-radius: 50%; border: 3px solid var(--on-primary); }
.nav { display: flex; flex-direction: column; gap: 2px; }
.nav button {
  display: flex; align-items: center; gap: 12px; height: 56px; padding: 0 16px; border: 0;
  border-radius: var(--shape-full); background: none; color: var(--on-surface-variant);
  font: 500 14px/1.2 var(--font); cursor: pointer; text-align: start; -webkit-tap-highlight-color: transparent;
}
.nav button:hover { background: color-mix(in srgb, var(--on-surface) 8%, transparent); }
.nav button.on { background: var(--secondary-container); color: var(--on-secondary-container); }
.nav .ind { display: grid; place-items: center; }
.nav svg, .btn svg { width: 24px; height: 24px; fill: currentColor; flex: none; }
.foot { margin-top: auto; padding: 12px 8px 4px 16px; display: flex; align-items: center; justify-content: space-between; gap: 8px; border-top: 1px solid var(--outline-variant); }
.appbar { display: none; }
.main { padding: 28px clamp(16px, 3vw, 40px) 64px; min-width: 0; max-width: 1120px; }
.head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 20px; }
.head h1 { margin: 0; }

html[data-platform="ios"] .side { border-inline-end: .5px solid var(--outline); }
html[data-platform="ios"] .nav button { height: 44px; border-radius: 10px; font-size: 17px; font-weight: 400; color: var(--on-surface); }
html[data-platform="ios"] .nav button svg { color: var(--primary); }
html[data-platform="ios"] .nav button.on { background: var(--secondary-container); font-weight: 600; }
html[data-platform="ios"] .brand i { border-radius: 9px; }
html[data-platform="ios"] .foot { border-top-width: .5px; border-color: var(--outline); }

@media (max-width: 839px) {
  .shell { display: block; }
  .appbar {
    display: flex; align-items: center; gap: 4px; height: 64px; padding: 0 8px; padding-inline-start: 16px;
    position: sticky; top: 0; z-index: 10; background: var(--surface);
  }
  .appbar .title { flex: 1; font-size: 22px; display: flex; align-items: center; gap: 12px; }
  .side {
    position: fixed; inset: auto 0 0 0; height: auto; z-index: 20; flex-direction: row;
    padding: 0 0 env(safe-area-inset-bottom); background: var(--bar-bg); overflow: visible;
  }
  .side .brand, .side .foot, .nav .nav-extra { display: none; }
  .nav { flex-direction: row; width: 100%; height: 80px; gap: 0; }
  .nav button {
    flex: 1; min-width: 0; flex-direction: column; justify-content: center; gap: 4px; height: auto;
    padding: 0 2px; border-radius: 0; font-size: 12px; background: none !important;
  }
  .nav button.on { color: var(--on-surface); }
  .nav .ind { width: 64px; height: 32px; border-radius: var(--shape-full); transition: background .2s; }
  .nav button.on .ind { background: var(--secondary-container); color: var(--on-secondary-container); }
  .nav .lbl { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 100%; }
  .main { padding: 8px 16px calc(104px + env(safe-area-inset-bottom)); }
  h1 { font-size: 24px; }

  html[data-platform="ios"] .appbar {
    height: 44px; background: var(--bar-bg); -webkit-backdrop-filter: saturate(180%) blur(20px);
    backdrop-filter: saturate(180%) blur(20px); border-bottom: .5px solid var(--outline);
  }
  html[data-platform="ios"] .appbar .title { font-size: 17px; font-weight: 600; }
  html[data-platform="ios"] .appbar .brand-mark { display: none; }
  html[data-platform="ios"] .side {
    border: 0; border-top: .5px solid var(--outline);
    -webkit-backdrop-filter: saturate(180%) blur(20px); backdrop-filter: saturate(180%) blur(20px);
  }
  html[data-platform="ios"] .nav { height: 50px; }
  html[data-platform="ios"] .nav button { gap: 2px; font-size: 10px; font-weight: 500; color: var(--on-surface-variant); height: auto; }
  html[data-platform="ios"] .nav button svg { color: inherit; }
  html[data-platform="ios"] .nav button.on { color: var(--primary); font-weight: 500; }
  html[data-platform="ios"] .nav .ind { width: auto; height: 26px; background: none !important; color: inherit !important; }
  html[data-platform="ios"] .main { padding: 12px 16px calc(74px + env(safe-area-inset-bottom)); }
  html[data-platform="ios"] h1 { font-size: 30px; }
}

/* ============================================================ cards & layout */
.card { background: var(--card-bg); border-radius: var(--card-radius); box-shadow: var(--card-shadow); padding: 16px; margin-bottom: 16px; }
.grid { display: grid; gap: 16px; }
.grid > .card, .grid > .stat { margin-bottom: 0; }
.grid { margin-bottom: 16px; }
.g2 { grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); }
.g3 { grid-template-columns: repeat(auto-fit, minmax(min(230px, 100%), 1fr)); }
.g4 { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.stat { background: var(--tile-bg); border-radius: var(--card-radius); padding: 16px; }
.stat b { display: block; font-size: 22px; font-weight: 400; line-height: 1.4; }
.stat span { color: var(--on-surface-variant); font-size: 12.5px; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.spread { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; }
html[data-platform="ios"] .stat b { font-weight: 700; }

/* ============================================================ buttons */
.btn {
  position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: var(--btn-h); padding: 0 24px; border: 0; border-radius: var(--btn-radius);
  background: var(--primary); color: var(--on-primary); font: 500 14px/1 var(--font); letter-spacing: .01em;
  cursor: pointer; white-space: nowrap; text-decoration: none !important; overflow: hidden;
  transition: box-shadow .2s, opacity .15s; -webkit-tap-highlight-color: transparent;
}
.btn::after { content: ""; position: absolute; inset: 0; background: currentColor; opacity: 0; transition: opacity .15s; pointer-events: none; }
.btn:hover::after { opacity: .08; }
.btn:active::after, .btn:focus-visible::after { opacity: .12; }
.btn:hover { box-shadow: var(--elev-1); }
.btn.tonal { background: var(--secondary-container); color: var(--on-secondary-container); }
.btn.ghost { background: transparent; color: var(--primary); box-shadow: inset 0 0 0 1px var(--outline); }
.btn.danger { background: transparent; color: var(--error); box-shadow: none; padding: 0 12px; }
.btn.sm { height: 32px; padding: 0 16px; font-size: 13px; }
.btn.danger.sm { padding: 0 12px; }
.btn.icon { width: 40px; height: 40px; padding: 0; background: transparent; color: var(--on-surface-variant); box-shadow: none; border-radius: 50%; }
.btn.block { width: 100%; }
.btn:disabled { background: color-mix(in srgb, var(--on-surface) 12%, transparent); color: color-mix(in srgb, var(--on-surface) 38%, transparent); box-shadow: none; cursor: default; }
.btn:disabled::after { display: none; }

html[data-platform="ios"] .btn { font-size: 17px; font-weight: 600; padding: 0 20px; letter-spacing: 0; }
html[data-platform="ios"] .btn::after { display: none; }
html[data-platform="ios"] .btn:hover { box-shadow: none; }
html[data-platform="ios"] .btn:active { opacity: .55; }
html[data-platform="ios"] .btn.tonal, html[data-platform="ios"] .btn.ghost { background: var(--fill); color: var(--primary); box-shadow: none; }
html[data-platform="ios"] .btn.danger { background: transparent; color: var(--error); font-weight: 400; }
html[data-platform="ios"] .btn.sm { height: 34px; border-radius: 999px; font-size: 15px; font-weight: 500; padding: 0 14px; }
html[data-platform="ios"] .btn.icon { width: 44px; height: 44px; background: transparent; color: var(--primary); }
html[data-platform="ios"] .btn:disabled { background: var(--fill); color: var(--on-surface-variant); opacity: .6; }

/* ============================================================ form fields */
label { display: block; font-size: 12px; color: var(--on-surface-variant); margin: 0 0 4px; padding-inline-start: 4px; }
input, select {
  width: 100%; height: var(--field-h); padding: 0 16px; font: 400 16px/1.2 var(--font); color: var(--on-surface);
  background: transparent; border: 1px solid var(--outline); border-radius: var(--field-radius); outline: none;
  transition: border-color .15s, box-shadow .15s;
}
input::placeholder { color: var(--on-surface-variant); opacity: .7; }
input:hover, select:hover { border-color: var(--on-surface); }
input:focus, select:focus { border-color: var(--primary); box-shadow: inset 0 0 0 1px var(--primary); }
select option { background: var(--surface-container); color: var(--on-surface); }
.field { margin-bottom: 12px; flex: 1 1 180px; min-width: 0; }
form.row { align-items: flex-end; }
form.row > .btn { margin: 0 0 12px !important; height: var(--field-h); }
form.row > .btn.sm, form.row > input { margin: 0 !important; height: 36px; }
form.row > input { font-size: 14px; padding: 0 12px; }

html[data-platform="ios"] label { font-size: 13px; padding-inline-start: 12px; margin-bottom: 6px; }
html[data-platform="ios"] input, html[data-platform="ios"] select { background: var(--fill); border: 0; font-size: 17px; padding: 0 12px; }
html[data-platform="ios"] input:focus, html[data-platform="ios"] select:focus { box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary) 55%, transparent); }
html[data-platform="ios"] form.row > .btn { border-radius: 10px; font-size: 16px; }
html[data-platform="ios"] form.row > .btn.sm { border-radius: 999px; font-size: 15px; }
html[data-platform="ios"] form.row > input { font-size: 16px; }

/* segmented buttons (M3) / segmented control (iOS) */
.tabs { display: flex; margin-bottom: 16px; border: 1px solid var(--outline); border-radius: var(--shape-full); overflow: hidden; }
.tabs button { flex: 1; height: 40px; border: 0; background: none; color: var(--on-surface); font: 500 14px/1 var(--font); cursor: pointer; }
.tabs button + button { border-inline-start: 1px solid var(--outline); }
.tabs button.on { background: var(--secondary-container); color: var(--on-secondary-container); }
html[data-platform="ios"] .tabs { border: 0; background: var(--fill); border-radius: 9px; padding: 2px; }
html[data-platform="ios"] .tabs button { height: 32px; border: 0; border-radius: 7px; font-size: 14px; }
html[data-platform="ios"] .tabs button.on { background: var(--surface-lowest); color: var(--on-surface); font-weight: 600; box-shadow: 0 1px 3px rgba(0, 0, 0, .18); }
@media (prefers-color-scheme: dark) { html[data-platform="ios"] .tabs button.on { background: #636366; } }

/* ============================================================ data display */
.tablewrap { overflow-x: auto; margin: 0 -4px; }
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th, td { text-align: start; padding: 12px 10px; border-bottom: 1px solid var(--outline-variant); vertical-align: middle; }
th { color: var(--on-surface-variant); font-weight: 500; font-size: 12px; white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
td .btn + .btn { margin-inline-start: 4px; }
.empty { text-align: center; color: var(--on-surface-variant); padding: 28px 10px; }
html[data-platform="ios"] table { font-size: 15px; }
html[data-platform="ios"] th, html[data-platform="ios"] td { border-bottom-width: .5px; border-color: var(--outline); }
html[data-platform="ios"] th { font-size: 13px; font-weight: 400; text-transform: uppercase; }

/* chips */
.badge {
  display: inline-flex; align-items: center; height: 24px; padding: 0 10px; border-radius: var(--shape-sm);
  font-size: 12px; font-weight: 500; white-space: nowrap; color: var(--on-surface-variant);
  border: 1px solid var(--outline-variant);
}
.badge.paid, .badge.ok { background: var(--success-container); color: var(--on-success-container); border-color: transparent; }
.badge.pending { background: var(--tertiary-container); color: var(--on-tertiary-container); border-color: transparent; }
.badge.failed { background: var(--error-container); color: var(--on-error-container); border-color: transparent; }
html[data-platform="ios"] .badge { border-radius: 999px; border: 0; background: var(--fill); font-size: 13px; }

/* banners */
.note { background: var(--secondary-container); color: var(--on-secondary-container); border-radius: var(--shape-md); padding: 12px 16px; font-size: 13.5px; margin-bottom: 12px; }
.note.warn { background: var(--tertiary-container); color: var(--on-tertiary-container); }
.note a { color: inherit; font-weight: 500; text-decoration: underline; }
html[data-platform="ios"] .note { font-size: 15px; background: var(--primary-container); color: var(--on-surface); }
html[data-platform="ios"] .note.warn { background: var(--tertiary-container); }

/* lists */
.steps { list-style: none; margin: 0; padding: 0; }
.steps li { display: flex; gap: 16px; align-items: center; min-height: 48px; padding: 4px 0; border-bottom: 1px solid var(--outline-variant); }
.steps li:last-child { border: 0; }
.steps a { color: var(--on-surface); }
.dot { width: 24px; height: 24px; border-radius: 50%; border: 2px solid var(--outline); display: inline-grid; place-items: center; font-size: 12px; flex: none; color: var(--on-surface-variant); }
.dot.done { background: var(--primary); border-color: var(--primary); color: var(--on-primary); }
html[data-platform="ios"] .steps li { min-height: 44px; border-bottom-width: .5px; border-color: var(--outline); }
html[data-platform="ios"] .dot.done { background: var(--success); border-color: var(--success); color: #fff; }

/* linear progress */
.bar { height: 4px; border-radius: 4px; background: var(--surface-highest); overflow: hidden; }
.bar i { display: block; height: 100%; background: var(--primary); border-radius: 4px; }
.bar.low i { background: var(--error); }
html[data-platform="ios"] .bar { background: var(--fill); }

/* code */
pre, code { font-family: var(--mono); font-size: 12.5px; }
pre { direction: ltr; text-align: left; background: var(--inverse-surface); color: var(--inverse-on-surface); border-radius: var(--shape-md); padding: 16px; overflow-x: auto; margin: 8px 0 16px; line-height: 1.6; }
code.inline { background: var(--surface-highest); border-radius: var(--shape-xs); padding: 1px 6px; direction: ltr; unicode-bidi: isolate; }
.secret { direction: ltr; text-align: left; font-family: var(--mono); font-size: 13px; background: var(--surface-highest); border-radius: var(--shape-sm); padding: 12px 16px; word-break: break-all; }
html[data-platform="ios"] pre { background: #1c1c1e; color: #f2f2f7; }
html[data-platform="ios"] code.inline, html[data-platform="ios"] .secret { background: var(--fill); }
html[data-platform="ios"] .secret { border-radius: 10px; }

/* snackbar (M3) / HUD (iOS) */
#toast { position: fixed; inset-inline: 0; bottom: 24px; display: flex; justify-content: center; padding: 0 16px; pointer-events: none; z-index: 50; }
#toast div { background: var(--inverse-surface); color: var(--inverse-on-surface); min-height: 48px; display: flex; align-items: center; padding: 8px 16px; border-radius: var(--shape-xs); box-shadow: var(--elev-3); min-width: min(344px, 100%); max-width: 672px; font-size: 14px; }
#toast div.err { background: var(--error-container); color: var(--on-error-container); }
@media (max-width: 839px) { .shell ~ #toast { bottom: calc(96px + env(safe-area-inset-bottom)); } }
html[data-platform="ios"] #toast div { min-width: 0; border-radius: 999px; padding: 8px 20px; font-size: 15px; font-weight: 500; box-shadow: 0 8px 30px rgba(0, 0, 0, .18); -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px); }
html[data-platform="ios"] #toast div.err { background: var(--error); color: #fff; }

/* ============================================================ bank card visual */
.bankcard {
  position: relative; border-radius: var(--shape-lg); color: #fff; padding: 18px 20px; aspect-ratio: 1.6 / 1;
  max-width: 380px; width: 100%; display: flex; flex-direction: column; justify-content: space-between;
  background: linear-gradient(135deg, var(--c1, #334155), var(--c2, #64748b));
  box-shadow: var(--elev-3); overflow: hidden;
}
.bankcard::after { content: ""; position: absolute; inset: auto -30% -60% auto; width: 80%; aspect-ratio: 1; border-radius: 50%; background: rgba(255, 255, 255, .09); }
.bankcard .bname { font-weight: 500; font-size: 16px; position: relative; z-index: 1; }
.bankcard .chip { width: 42px; height: 30px; border-radius: 7px; background: linear-gradient(135deg, #f6d98b, #c79a3a); }
.bankcard .num { direction: ltr; text-align: center; font-family: var(--mono); font-size: clamp(17px, 5vw, 23px); letter-spacing: .08em; position: relative; z-index: 1; text-shadow: 0 1px 2px rgba(0, 0, 0, .35); }
.bankcard .holder { font-size: 14px; opacity: .95; position: relative; z-index: 1; }
.bankcard.off { filter: grayscale(.9); opacity: .7; }
html[data-platform="ios"] .bankcard { border-radius: 18px; box-shadow: 0 10px 30px rgba(0, 0, 0, .18); }
html[data-platform="ios"] .bankcard .bname { font-weight: 700; }

/* ============================================================ landing */
.landing { max-width: 1050px; margin: 0 auto; padding: 16px 16px 60px; }
.hero { display: grid; grid-template-columns: 1.2fr 1fr; gap: 32px; align-items: center; margin-top: 24px; }
.hero h1 { font-size: clamp(28px, 4vw, 45px); }
@media (max-width: 839px) { .hero { grid-template-columns: 1fr; } }

/* ============================================================ payment page */
.paypage { display: grid; place-items: start center; min-height: 100dvh; padding: 24px 16px; }
.pay { width: 100%; max-width: 430px; }
.pay .card { padding: 24px; }
.amount { font-size: 36px; font-weight: 400; line-height: 1.3; }
.amount small { font-size: 14px; color: var(--on-surface-variant); }
.copyrow { display: flex; gap: 8px; margin-top: 16px; }
.copyrow .btn { flex: 1; padding: 0 12px; }
.timer { display: flex; justify-content: space-between; align-items: center; margin: 20px 0 8px; font-size: 14px; }
.timer b { font-family: var(--mono); font-size: 18px; font-weight: 500; direction: ltr; }
.pay .bar i { transition: width 1s linear; }
.state { font-size: 44px; width: 88px; height: 88px; border-radius: 50%; display: grid; place-items: center; margin: 8px auto 16px; }
.state.ok { background: var(--success-container); color: var(--on-success-container); }
.state.bad { background: var(--surface-highest); color: var(--on-surface-variant); }
.pulse { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--primary); margin-inline-end: 8px; animation: pulse 1.2s infinite; }
@keyframes pulse { 50% { opacity: .25; } }
@media (prefers-reduced-motion: reduce) { .pulse { animation: none; } * { transition: none !important; } }
html[data-platform="ios"] .amount { font-weight: 700; font-size: 40px; }
html[data-platform="ios"] .state.ok { background: var(--success); color: #fff; }

/* ============================================================ quick-connect QR */
.qrbox { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; margin-bottom: 12px; }
.qrbox .qr { width: 176px; flex: none; background: #fff; border-radius: var(--shape-md); padding: 6px; line-height: 0; }
.qrbox .qr svg { width: 100%; height: auto; display: block; }
.qrbox ol { flex: 1 1 200px; margin: 0; }