/* ==========================================================================
   Nanofox Pay — design system (light + dark, phone first)
   ========================================================================== */
:root {
  --bg: #F6F8FB; --surface: #FFFFFF; --surface-2: #F1F4F9; --surface-3: #E9EEF6;
  --text: #0B1324; --muted: #5B6476; --faint: #667085; --line: #E3E8F0; --line-2: #D5DCE8;
  --primary: #2B59FF; --primary-hover: #1F47E0; --on-primary: #FFFFFF; --primary-soft: #EAF0FF;
  --navy: #0A1A3F; --navy-2: #102A63;
  --ok: #067647; --ok-bg: #E6F6EE; --warn: #9A5B00; --warn-bg: #FFF3DC; --err: #C4271B; --err-bg: #FDECEC; --info-bg: #EAF0FF;
  --shadow-sm: 0 1px 2px rgb(16 24 40 / .06), 0 1px 3px rgb(16 24 40 / .08);
  --shadow: 0 8px 24px -8px rgb(16 24 40 / .14), 0 2px 6px -2px rgb(16 24 40 / .06);
  --shadow-lg: 0 24px 60px -20px rgb(10 26 63 / .35);
  --r: 14px; --r-sm: 10px; --r-lg: 20px;
  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --mono: ui-monospace, 'SFMono-Regular', Menlo, Consolas, monospace;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #0A0F1C; --surface: #111827; --surface-2: #172033; --surface-3: #1E293F;
  --text: #E8EDF7; --muted: #9AA6BC; --faint: #8794AB; --line: #243049; --line-2: #2E3B58;
  --primary: #6B8BFF; --primary-hover: #8AA3FF; --on-primary: #0A0F1C; --primary-soft: rgb(107 139 255 / .14);
  --ok: #4ADE9B; --ok-bg: rgb(74 222 155 / .12); --warn: #FBBF5B; --warn-bg: rgb(251 191 91 / .12); --err: #FF8A80; --err-bg: rgb(255 138 128 / .12); --info-bg: rgb(107 139 255 / .12);
  --shadow-sm: 0 1px 2px rgb(0 0 0 / .4); --shadow: 0 10px 30px -10px rgb(0 0 0 / .6); --shadow-lg: 0 30px 70px -20px rgb(0 0 0 / .7);
  color-scheme: dark;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font: 400 15px/1.55 var(--font); background: var(--bg); color: var(--text); -webkit-font-smoothing: antialiased; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }
img, svg { max-width: 100%; }
h1, h2, h3, h4 { margin: 0 0 .4em; line-height: 1.2; letter-spacing: -.02em; color: var(--text); }
h1 { font-size: clamp(26px, 3.2vw, 34px); font-weight: 800; }
h2 { font-size: clamp(21px, 2.4vw, 26px); font-weight: 750; }
h3 { font-size: 17px; font-weight: 700; }
p { margin: 0 0 1em; }
code, .mono { font-family: var(--mono); font-size: .92em; }
code { background: var(--surface-2); border: 1px solid var(--line); border-radius: 6px; padding: 1px 6px; }
:focus-visible { outline: 3px solid color-mix(in srgb, var(--primary) 45%, transparent); outline-offset: 2px; border-radius: 6px; }
[hidden] { display: none !important; }
.muted { color: var(--muted); } .faint { color: var(--faint); } .small { font-size: 13px; } .center { text-align: center; }
.nowrap { white-space: nowrap; } .right { text-align: right; }
.wrap { width: 100%; max-width: 1160px; margin: 0 auto; padding: 0 20px; }
.stack > * + * { margin-top: 14px; }
.row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.row--between { justify-content: space-between; }
.grid { display: grid; gap: 16px; }
.g2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); }
.g3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr)); }
.g4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr)); }

/* ---------- buttons, forms ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 42px; padding: 9px 18px; border-radius: var(--r-sm);
  border: 1px solid transparent; background: var(--primary); color: var(--on-primary); font: 600 14.5px/1.2 var(--font); cursor: pointer;
  text-decoration: none; transition: background .15s, border-color .15s, transform .08s, box-shadow .15s; white-space: nowrap; }
.btn:hover { background: var(--primary-hover); color: var(--on-primary); }
.btn:active { transform: translateY(1px); }
.btn--secondary { background: var(--surface); color: var(--text); border-color: var(--line-2); box-shadow: var(--shadow-sm); }
.btn--secondary:hover { background: var(--surface-2); color: var(--text); }
.btn--ghost { background: transparent; color: var(--text); }
.btn--ghost:hover { background: var(--surface-2); color: var(--text); }
.btn--danger { background: var(--err); color: #fff; } .btn--danger:hover { background: color-mix(in srgb, var(--err) 85%, #000); color: #fff; }
.btn--light { background: #fff; color: var(--navy); } .btn--light:hover { background: #EAF0FF; color: var(--navy); }
.btn--sm { min-height: 34px; padding: 6px 12px; font-size: 13.5px; }
.btn--lg { min-height: 50px; padding: 12px 24px; font-size: 16px; border-radius: 12px; }
.btn--block { display: flex; width: 100%; }
.btn[disabled], .btn.is-busy { opacity: .6; pointer-events: none; }
.field { display: block; margin: 0 0 14px; }
.field > span, .label { display: block; margin-bottom: 6px; font-size: 13.5px; font-weight: 600; color: var(--text); }
.field small, .hint { display: block; margin-top: 5px; font-size: 12.5px; color: var(--muted); }
.input, select.input, textarea.input { width: 100%; min-height: 44px; padding: 10px 12px; border: 1px solid var(--line-2); border-radius: var(--r-sm);
  background: var(--surface); color: var(--text); font: 400 15px/1.4 var(--font); transition: border-color .15s, box-shadow .15s; }
textarea.input { min-height: 96px; resize: vertical; }
.input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 4px color-mix(in srgb, var(--primary) 18%, transparent); }
.input[readonly] { background: var(--surface-2); }
.check { display: flex; align-items: center; gap: 10px; font-size: 14px; cursor: pointer; }
.check input { width: 18px; height: 18px; accent-color: var(--primary); }
.copyfield { display: flex; gap: 8px; }
.copyfield .input { font-family: var(--mono); font-size: 13.5px; }

/* ---------- cards, badges, alerts, tables ---------- */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); padding: 22px; box-shadow: var(--shadow-sm); }
.card + .card { margin-top: 16px; }
.card__head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }
.card__head h2, .card__head h3 { margin: 0; }
.card--flush { padding: 0; overflow: hidden; }
.card--flush .card__head { padding: 18px 20px 0; }
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 650; white-space: nowrap; background: var(--surface-2); color: var(--muted); }
.badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge--ok { background: var(--ok-bg); color: var(--ok); } .badge--warn { background: var(--warn-bg); color: var(--warn); }
.badge--err { background: var(--err-bg); color: var(--err); } .badge--info { background: var(--info-bg); color: var(--primary); }
.alert { display: flex; gap: 10px; align-items: flex-start; padding: 12px 14px; border-radius: var(--r-sm); margin: 0 0 16px; font-size: 14px; border: 1px solid transparent; }
.alert--ok { background: var(--ok-bg); color: var(--ok); border-color: color-mix(in srgb, var(--ok) 25%, transparent); }
.alert--err { background: var(--err-bg); color: var(--err); border-color: color-mix(in srgb, var(--err) 25%, transparent); }
.alert--warn { background: var(--warn-bg); color: var(--warn); border-color: color-mix(in srgb, var(--warn) 25%, transparent); }
.alert--info { background: var(--info-bg); color: var(--text); border-color: color-mix(in srgb, var(--primary) 25%, transparent); }
.table-wrap { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th { text-align: left; padding: 10px 16px; font-size: 12px; font-weight: 650; letter-spacing: .04em; text-transform: uppercase; color: var(--faint); background: var(--surface-2); border-bottom: 1px solid var(--line); white-space: nowrap; }
.table td { padding: 12px 16px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.table tr:last-child td { border-bottom: 0; }
.table tbody tr:hover td { background: color-mix(in srgb, var(--surface-2) 55%, transparent); }
.table .empty { padding: 36px 16px; text-align: center; color: var(--muted); }
.amount { font-variant-numeric: tabular-nums; font-weight: 650; }
.stat { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); padding: 18px; box-shadow: var(--shadow-sm); }
.stat__label { font-size: 13px; color: var(--muted); font-weight: 550; }
.stat__value { margin-top: 6px; font-size: 26px; font-weight: 800; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.stat__sub { margin-top: 2px; font-size: 12.5px; color: var(--faint); }
.tabs { display: flex; gap: 4px; padding: 4px; background: var(--surface-2); border: 1px solid var(--line); border-radius: 12px; width: max-content; max-width: 100%; overflow-x: auto; }
.tabs a { padding: 7px 14px; border-radius: 9px; color: var(--muted); font-weight: 600; font-size: 13.5px; white-space: nowrap; }
.tabs a.is-on { background: var(--surface); color: var(--text); box-shadow: var(--shadow-sm); }
.pager { display: flex; gap: 8px; justify-content: flex-end; padding: 14px 16px; }
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.steps li { display: flex; gap: 12px; align-items: flex-start; padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--surface); }
.steps__n { flex: none; display: grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: var(--surface-3); color: var(--muted); font-weight: 700; font-size: 13px; }
.steps li.is-done .steps__n { background: var(--ok); color: #fff; }
.steps li.is-done .steps__t { color: var(--muted); text-decoration: line-through; }
.steps__t { font-weight: 650; } .steps__d { font-size: 13px; color: var(--muted); }
.code { position: relative; margin: 0; padding: 16px; border-radius: var(--r-sm); background: #0B1324; color: #D7E0F2; font: 13px/1.6 var(--mono); overflow-x: auto; white-space: pre; }
.code .k { color: #8AB4FF; } .code .s { color: #A5E3B5; } .code .c { color: #8C99B0; }
.kv { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 10px 18px; margin: 0; font-size: 14.5px; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; text-align: right; font-weight: 550; word-break: break-all; }
.divider { border: 0; border-top: 1px solid var(--line); margin: 18px 0; }
.empty-state { padding: 34px 18px; text-align: center; color: var(--muted); }
.empty-state b { display: block; color: var(--text); margin-bottom: 4px; }

/* ---------- logo, theme switch ---------- */
.logo { display: inline-flex; align-items: center; gap: 10px; color: var(--text); font-weight: 800; font-size: 18px; letter-spacing: -.02em; }
.logo:hover { color: var(--text); }
.logo__mark { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 9px; background: linear-gradient(135deg, var(--primary), #7B5CFF); color: #fff; font-size: 15px; font-weight: 800; box-shadow: 0 6px 14px -6px var(--primary); }
.logo small { font-weight: 600; color: var(--muted); font-size: 12px; margin-left: -4px; }
.themebtn { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 10px; border: 1px solid var(--line); background: var(--surface); color: var(--muted); cursor: pointer; }
.themebtn:hover { color: var(--text); background: var(--surface-2); }
.themebtn .i-moon, :root[data-theme="dark"] .themebtn .i-sun { display: block; }
.themebtn .i-sun, :root[data-theme="dark"] .themebtn .i-moon { display: none; }

/* ---------- public site ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--bg) 85%, transparent); backdrop-filter: saturate(160%) blur(12px); -webkit-backdrop-filter: saturate(160%) blur(12px); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; gap: 18px; height: 64px; }
.site-nav { display: flex; align-items: center; gap: 4px; margin-left: 12px; }
.site-nav a { padding: 8px 12px; border-radius: 8px; color: var(--muted); font-weight: 550; font-size: 14.5px; }
.site-nav a:hover, .site-nav a.is-on { color: var(--text); background: var(--surface-2); }
.site-header__end { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.menubtn { display: none; }
.site-nav .show-sm { display: none; }
.app__body { min-width: 0; }
@media (max-width: 820px) {
  .site-nav { display: none; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; margin: 0; padding: 8px 16px 14px; background: var(--surface); border-bottom: 1px solid var(--line); box-shadow: var(--shadow); }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 12px; }
  .site-nav .show-sm { display: block; }
  .menubtn { display: grid; }
  .site-header__end .hide-sm { display: none; }
}
.hero { position: relative; overflow: hidden; background: radial-gradient(70% 90% at 85% 10%, #3B5BFFB0 0%, transparent 60%), radial-gradient(60% 80% at 0% 100%, #7B5CFF55 0%, transparent 60%), linear-gradient(160deg, var(--navy), #071230); background-color: #071230; color: #fff; }
.hero .wrap { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; padding-top: 72px; padding-bottom: 80px; }
.hero h1 { color: #fff; font-size: clamp(32px, 5vw, 54px); line-height: 1.05; letter-spacing: -.035em; }
.hero p.lead { color: #C9D4F2; font-size: clamp(16px, 1.6vw, 19px); max-width: 560px; }
.hero__pill { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 18px; padding: 6px 12px; border-radius: 999px; background: rgb(255 255 255 / .1); border: 1px solid rgb(255 255 255 / .18); font-size: 13px; color: #DCE5FF; }
.hero__pill b { color: #fff; }
.hero__cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
.hero__cta .btn--secondary { background: rgb(255 255 255 / .08); color: #fff; border-color: rgb(255 255 255 / .25); box-shadow: none; }
.hero__cta .btn--secondary:hover { background: rgb(255 255 255 / .16); color: #fff; }
.hero__trust { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 28px; color: #AFC0EA; font-size: 13.5px; }
.hero__trust span::before { content: "✓ "; color: #6EE7B7; font-weight: 800; }
.hero__visual { position: relative; display: flex; justify-content: center; }
.mock { width: 320px; max-width: 100%; background: #fff; color: #0B1324; border-radius: 22px; padding: 20px; box-shadow: var(--shadow-lg); transform: rotate(-2deg); }
.mock__head { display: flex; align-items: center; gap: 10px; padding-bottom: 14px; border-bottom: 1px solid #E3E8F0; }
.mock__av { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; background: #EAF0FF; color: #2B59FF; font-weight: 800; }
.mock__amt { font-size: 30px; font-weight: 800; letter-spacing: -.02em; margin: 14px 0 4px; }
.mock__qr { display: grid; place-items: center; height: 170px; margin: 12px 0; border-radius: 14px; background: repeating-conic-gradient(#0B1324 0 25%, #fff 0 50%) 0 0/14px 14px; border: 10px solid #fff; outline: 1px solid #E3E8F0; }
.mock__ok { display: flex; align-items: center; gap: 8px; padding: 10px 12px; border-radius: 12px; background: #E6F6EE; color: #067647; font-weight: 700; font-size: 14px; }
.mock__float { position: absolute; right: 2%; bottom: -34px; display: flex; gap: 10px; align-items: center; padding: 12px 14px; border-radius: 14px; background: #fff; color: #0B1324; box-shadow: var(--shadow-lg); font-size: 13px; transform: rotate(2deg); }
.mock__float b { display: block; font-size: 15px; }
@media (max-width: 880px) { .hero .wrap { grid-template-columns: 1fr; padding-top: 48px; padding-bottom: 56px; } .hero__visual { margin-top: 10px; } .mock__float { right: 0; } }
.section { padding: 72px 0; }
.section--alt { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section__head { max-width: 680px; margin: 0 auto 40px; text-align: center; }
.section__head .eyebrow { display: inline-block; margin-bottom: 10px; color: var(--primary); font-weight: 700; font-size: 13px; letter-spacing: .08em; text-transform: uppercase; }
.section__head p { color: var(--muted); font-size: 16.5px; }
.feature { padding: 22px; border: 1px solid var(--line); border-radius: var(--r); background: var(--surface); }
.feature__ic { display: grid; place-items: center; width: 42px; height: 42px; margin-bottom: 14px; border-radius: 12px; background: var(--primary-soft); color: var(--primary); font-size: 20px; }
.feature p { color: var(--muted); margin: 0; font-size: 14.5px; }
.howto { counter-reset: s; display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 230px), 1fr)); }
.howto li { list-style: none; position: relative; padding: 22px; border-radius: var(--r); background: var(--bg); border: 1px solid var(--line); }
.howto li::before { counter-increment: s; content: counter(s); display: grid; place-items: center; width: 30px; height: 30px; margin-bottom: 12px; border-radius: 50%; background: var(--primary); color: var(--on-primary); font-weight: 800; }
.howto p { color: var(--muted); margin: 0; font-size: 14.5px; }
.plans { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 270px), 1fr)); align-items: stretch; }
.plan { position: relative; display: flex; flex-direction: column; padding: 26px; border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--surface); box-shadow: var(--shadow-sm); }
.plan--featured { border-color: var(--primary); box-shadow: 0 0 0 1px var(--primary), var(--shadow); }
.plan__tag { position: absolute; top: -12px; left: 24px; padding: 3px 10px; border-radius: 999px; background: var(--primary); color: var(--on-primary); font-size: 12px; font-weight: 700; }
.plan__name { font-weight: 700; font-size: 16px; }
.plan__price { margin: 10px 0 2px; font-size: 38px; font-weight: 800; letter-spacing: -.03em; }
.plan__price small { font-size: 15px; font-weight: 600; color: var(--muted); letter-spacing: 0; }
.plan__desc { color: var(--muted); font-size: 14px; min-height: 22px; }
.plan ul { list-style: none; margin: 14px 0 22px; padding: 0; display: grid; gap: 8px; font-size: 14.5px; }
.plan li { display: flex; gap: 10px; } .plan li::before { content: "✓"; color: var(--ok); font-weight: 800; }
.plan .btn { margin-top: auto; }
.devgrid { display: grid; gap: 28px; grid-template-columns: 1fr 1.1fr; align-items: center; }
@media (max-width: 880px) { .devgrid { grid-template-columns: 1fr; } }
.devlist { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 10px; }
.devlist li { display: flex; gap: 10px; color: var(--muted); } .devlist li::before { content: "→"; color: var(--primary); font-weight: 800; }
.faq { max-width: 760px; margin: 0 auto; display: grid; gap: 10px; }
.faq details { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--surface); padding: 0 18px; }
.faq summary { cursor: pointer; padding: 16px 0; font-weight: 650; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--muted); font-size: 20px; line-height: 1; }
.faq details[open] summary::after { content: "−"; }
.faq details p { color: var(--muted); padding-bottom: 16px; margin: 0; }
.cta { border-radius: var(--r-lg); padding: 42px; background: linear-gradient(135deg, var(--navy), var(--navy-2)); background-color: var(--navy); color: #fff; display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.cta h2 { color: #fff; margin: 0 0 6px; } .cta p { color: #C9D4F2; margin: 0; }
.site-footer { border-top: 1px solid var(--line); background: var(--surface); padding: 40px 0 30px; margin-top: 0; }
.site-footer .wrap { display: grid; gap: 24px; grid-template-columns: 1.4fr repeat(3, 1fr); }
.site-footer h4 { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--faint); margin-bottom: 10px; }
.site-footer a { display: block; color: var(--muted); padding: 3px 0; font-size: 14px; } .site-footer a:hover { color: var(--text); }
.site-footer__bottom { grid-column: 1 / -1; padding-top: 20px; border-top: 1px solid var(--line); color: var(--faint); font-size: 13px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
@media (max-width: 760px) { .site-footer .wrap { grid-template-columns: 1fr 1fr; } .site-footer .wrap > div:first-child { grid-column: 1 / -1; } }
.page-head { padding: 44px 0 26px; }
.page-head p { color: var(--muted); font-size: 16px; max-width: 640px; }
.prose { max-width: 760px; } .prose h2 { margin-top: 1.4em; font-size: 20px; } .prose p, .prose li { color: var(--muted); }

.eyebrow { display: inline-block; color: var(--primary); font-weight: 700; font-size: 13px; letter-spacing: .08em; text-transform: uppercase; }
.docs { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 28px; align-items: start; }
.docs__nav { position: sticky; top: 84px; padding: 14px; }
.docs__nav a { display: block; padding: 7px 8px; border-radius: 8px; color: var(--muted); font-size: 14px; }
.docs__nav a:hover { background: var(--surface-2); color: var(--text); }
.docs h2 .badge { vertical-align: middle; margin-right: 6px; }
.docs .code + .code { margin-top: 10px; }
@media (max-width: 860px) { .docs { grid-template-columns: 1fr; } .docs__nav { position: static; } }

/* ---------- auth ---------- */
.auth { min-height: 100vh; display: grid; grid-template-columns: 1fr 1fr; }
.auth__side { position: relative; padding: 48px; color: #fff; background: radial-gradient(70% 70% at 90% 0%, #3B5BFF 0%, transparent 60%), linear-gradient(160deg, var(--navy), #071230); background-color: #071230; display: flex; flex-direction: column; justify-content: space-between; }
.auth__side .logo { color: #fff; }
.auth__side h2 { color: #fff; font-size: 30px; max-width: 420px; }
.auth__side p { color: #C9D4F2; max-width: 420px; }
.auth__quote { padding: 18px; border-radius: 14px; background: rgb(255 255 255 / .08); border: 1px solid rgb(255 255 255 / .14); color: #DCE5FF; font-size: 14px; max-width: 440px; }
.auth__main { display: flex; flex-direction: column; justify-content: center; padding: 40px 24px; background: var(--bg); }
.auth__box { width: 100%; max-width: 400px; margin: 0 auto; }
.auth__box h1 { font-size: 28px; }
.auth__top { position: absolute; top: 18px; right: 18px; }
@media (max-width: 860px) { .auth { grid-template-columns: 1fr; } .auth__side { display: none; } .auth__main { min-height: 100vh; padding-top: 70px; } }
.auth__mobile-logo { display: none; margin-bottom: 26px; }
@media (max-width: 860px) { .auth__mobile-logo { display: inline-flex; } }

/* ---------- app shell (merchant + admin) ---------- */
.app { display: grid; grid-template-columns: 252px minmax(0, 1fr); min-height: 100vh; }
.side { position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; gap: 6px; padding: 18px 14px; background: var(--surface); border-right: 1px solid var(--line); overflow-y: auto; }
.side .logo { padding: 4px 8px 16px; }
.side__group { margin: 12px 8px 4px; font-size: 11.5px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--faint); }
.side .side__link { width: 100%; border: 0; background: none; cursor: pointer; font: inherit; text-align: left; display: flex; align-items: center; gap: 10px; padding: 9px 10px; border-radius: 9px; color: var(--muted); font-weight: 550; font-size: 14.5px; }
.side .side__link svg { width: 18px; height: 18px; flex: none; }
.side .side__link:hover { background: var(--surface-2); color: var(--text); }
.side .side__link.is-on { background: var(--primary-soft); color: var(--primary); font-weight: 650; }
.side__foot { margin-top: auto; padding-top: 12px; border-top: 1px solid var(--line); }
.side__user { display: flex; align-items: center; gap: 10px; padding: 8px; }
.avatar { display: grid; place-items: center; flex: none; width: 34px; height: 34px; border-radius: 50%; background: var(--primary-soft); color: var(--primary); font-weight: 800; font-size: 14px; }
.side__user b { display: block; font-size: 13.5px; } .side__user small { display: block; color: var(--faint); font-size: 12px; overflow: hidden; text-overflow: ellipsis; max-width: 150px; white-space: nowrap; }
.topbar { position: sticky; top: 0; z-index: 30; display: flex; align-items: center; gap: 12px; height: 62px; padding: 0 26px; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.topbar__title { font-weight: 700; font-size: 16px; }
.topbar__end { margin-left: auto; display: flex; gap: 8px; align-items: center; }
.main { padding: 26px; max-width: 1180px; width: 100%; }
.main__head { display: flex; align-items: flex-end; justify-content: space-between; gap: 14px; flex-wrap: wrap; margin-bottom: 22px; }
.main__head h1 { margin: 0; font-size: 26px; } .main__head p { margin: 4px 0 0; color: var(--muted); }
.sidebtn { display: none; }
.scrim { display: none; }
@media (max-width: 960px) {
  .app { grid-template-columns: 1fr; }
  .side { position: fixed; z-index: 60; left: 0; top: 0; bottom: 0; width: 270px; transform: translateX(-102%); transition: transform .22s ease; box-shadow: var(--shadow-lg); }
  .app.is-nav .side { transform: none; }
  .app.is-nav .scrim { display: block; position: fixed; inset: 0; z-index: 55; background: rgb(10 15 28 / .45); }
  .sidebtn { display: grid; }
  .topbar { padding: 0 14px; }
  .main { padding: 18px 14px 40px; }
}

/* ---------- checkout ---------- */
.ck-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 28px 14px; background: radial-gradient(60% 50% at 50% 0%, color-mix(in srgb, var(--ck, var(--primary)) 22%, transparent), transparent 70%), var(--bg); }
.ck { width: 100%; max-width: 860px; display: grid; grid-template-columns: 330px 1fr; border-radius: 22px; overflow: hidden; background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow-lg); }
.ck__side { padding: 28px; color: #fff; background: linear-gradient(160deg, var(--ck, var(--primary)), color-mix(in srgb, var(--ck, var(--primary)) 55%, #050A1F)); display: flex; flex-direction: column; gap: 18px; }
.ck__merchant { display: flex; align-items: center; gap: 12px; }
.ck__mav { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 12px; background: rgb(255 255 255 / .18); font-weight: 800; font-size: 18px; }
.ck__merchant b { display: block; font-size: 16px; } .ck__merchant small { color: rgb(255 255 255 / .75); }
.ck__label { font-size: 12.5px; text-transform: uppercase; letter-spacing: .08em; color: rgb(255 255 255 / .86); font-weight: 650; }
.ck__amount { font-size: 38px; font-weight: 800; letter-spacing: -.03em; line-height: 1.05; }
.ck__lines { display: grid; gap: 8px; padding: 14px; border-radius: 14px; background: rgb(255 255 255 / .1); font-size: 13.5px; }
.ck__lines div { display: flex; justify-content: space-between; gap: 10px; } .ck__lines span { color: rgb(255 255 255 / .86); } .ck__lines b { text-align: right; word-break: break-all; }
.ck__secure { margin-top: auto; display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: rgb(255 255 255 / .78); }
.ck__main { padding: 28px; display: flex; flex-direction: column; align-items: center; text-align: center; }
.ck__title { font-weight: 750; font-size: 18px; margin-bottom: 2px; }
.ck__sub { color: var(--muted); font-size: 14px; }
.ck__qr { position: relative; margin: 18px 0 10px; padding: 14px; border-radius: 18px; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); }
.ck__qr svg, .ck__qr img { display: block; width: 236px; height: 236px; }
.ck__qr.is-dim::after { content: ""; position: absolute; inset: 0; border-radius: 18px; background: rgb(255 255 255 / .88); }
.ck__timer { display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; border-radius: 999px; background: var(--surface-2); color: var(--muted); font-size: 13px; font-weight: 600; font-variant-numeric: tabular-nums; }
.ck__apps { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin: 14px 0 4px; }
.ck__apps span { padding: 5px 10px; border-radius: 8px; background: var(--surface-2); border: 1px solid var(--line); font-size: 12.5px; font-weight: 650; color: var(--muted); }
.ck__open { margin-top: 14px; }
.ck__status { width: 100%; margin-top: 16px; display: flex; align-items: center; justify-content: center; gap: 10px; padding: 12px; border-radius: 12px; background: var(--warn-bg); color: var(--warn); font-weight: 650; font-size: 14px; }
.ck__status::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: currentColor; animation: ckpulse 1.4s ease-in-out infinite; }
.ck__status.is-ok { background: var(--ok-bg); color: var(--ok); } .ck__status.is-ok::before { animation: none; }
.ck__status.is-bad { background: var(--err-bg); color: var(--err); } .ck__status.is-bad::before { animation: none; }
@keyframes ckpulse { 50% { opacity: .35; transform: scale(.8); } }
.ck__note { margin-top: 12px; color: var(--faint); font-size: 12.5px; }
.ck__done { display: none; flex-direction: column; align-items: center; gap: 8px; padding: 18px 0; }
.ck.is-paid .ck__done { display: flex; } .ck.is-paid .ck__pay { display: none; }
.ck__tick { display: grid; place-items: center; width: 74px; height: 74px; border-radius: 50%; background: var(--ok); color: #fff; font-size: 38px; animation: ckpop .45s cubic-bezier(.2, 1.4, .4, 1); }
@keyframes ckpop { from { transform: scale(.3); opacity: 0; } }
.ck-foot { margin-top: 16px; text-align: center; color: var(--muted); font-size: 12.5px; }
@media (max-width: 760px) {
  .ck { grid-template-columns: 1fr; border-radius: 18px; }
  .ck__side { padding: 20px; gap: 12px; }
  .ck__amount { font-size: 32px; }
  .ck__secure { display: none; }
  .ck__main { padding: 20px 16px 22px; }
  .ck__qr svg, .ck__qr img { width: 220px; height: 220px; }
}
@media (hover: hover) and (pointer: fine) { .ck__open { display: none; } }
/* checkout colour themes (Admin → Settings) */
.ck-aurora { --ck: #2B59FF; } .ck-midnight { --ck: #1E293B; } .ck-sunset { --ck: #C2410C; } .ck-forest { --ck: #0F7B53; }
.ck-paytm { --ck: #0077B6; } .ck-mono { --ck: #111111; } .ck-glass { --ck: #6D4AFF; }
.swatches { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; }
.swatch { display: flex; align-items: center; gap: 8px; padding: 9px 10px; border: 1px solid var(--line-2); border-radius: var(--r-sm); cursor: pointer; font-size: 13.5px; font-weight: 550; }
.swatch input { position: absolute; opacity: 0; pointer-events: none; }
.swatch__c { flex: none; width: 20px; height: 20px; border-radius: 6px; box-shadow: inset 0 0 0 1px rgb(255 255 255 / .25); }
.swatch a { margin-left: auto; }
.swatch:has(input:checked) { border-color: var(--primary); box-shadow: 0 0 0 1px var(--primary); background: var(--primary-soft); }
.swatch:has(input:focus-visible) { outline: 3px solid color-mix(in srgb, var(--primary) 45%, transparent); }
@media (max-width: 900px) { #plans-grid { grid-template-columns: 1fr !important; } }
.receipt { max-width: 520px; margin: 40px auto; }
.receipt dl { display: grid; grid-template-columns: auto 1fr; gap: 10px 18px; margin: 0; font-size: 14.5px; }
.receipt dt { color: var(--muted); } .receipt dd { margin: 0; text-align: right; font-weight: 600; word-break: break-all; }
@media print { .site-header, .site-footer, .noprint { display: none !important; } body { background: #fff; } }
.ck-foot a { color: inherit; text-decoration: underline; }
.ck__pay { display: flex; flex-direction: column; align-items: center; width: 100%; }
.ck__pay > .btn { width: 100%; }
.mock__qr svg { width: auto; height: 100%; display: block; margin: 0 auto; }
.mock__qr.is-drawn { background: #fff; }