:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-2: #f0f2f5;
  --border: #e2e5ea;
  --text: #16181d;
  --muted: #5d6573;
  --accent: #2f5bea;
  --accent-ink: #ffffff;
  --accent-soft: #e8eefe;
  --ok: #117a45;
  --ok-soft: #e3f5eb;
  --warn: #8a5a00;
  --warn-soft: #fdf1d8;
  --bad: #b42318;
  --bad-soft: #fde8e6;
  --info: #1d5fae;
  --info-soft: #e5f0fc;
  --radius: 10px;
  --shadow: 0 1px 2px rgb(16 24 40 / 6%), 0 1px 3px rgb(16 24 40 / 8%);
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --surface: #171a21;
    --surface-2: #1f232c;
    --border: #2b303b;
    --text: #e8eaee;
    --muted: #9aa3b2;
    --accent: #7c9bff;
    --accent-ink: #0b1020;
    --accent-soft: #1e2744;
    --ok: #4cc38a;
    --ok-soft: #13291f;
    --warn: #f0b849;
    --warn-soft: #2e2413;
    --bad: #ff7b72;
    --bad-soft: #341a19;
    --info: #79b8ff;
    --info-soft: #142338;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 var(--font);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre { font-family: var(--mono); font-size: 0.88em; }
code { background: var(--surface-2); padding: 1px 5px; border-radius: 5px; overflow-wrap: anywhere; }
h1 { font-size: 1.5rem; margin: 0 0 16px; letter-spacing: -0.01em; }
h2 { font-size: 1.05rem; margin: 0; }
small { color: var(--muted); display: block; margin-top: 4px; }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.center { text-align: center; margin-top: 12px; }
.pos { color: var(--ok); }
.neg { color: var(--text); }
.err-text { color: var(--bad); display: inline; }
.loading, .empty { color: var(--muted); padding: 24px 0; }
.empty { padding: 12px 0; margin: 0; }

/* --- shell --- */
.shell {
  display: grid;
  grid-template-columns: 220px 1fr;
  grid-template-rows: 56px 1fr;
  grid-template-areas: "top top" "nav main";
  min-height: 100vh;
}
.topbar {
  grid-area: top;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand { font-weight: 700; color: var(--text); white-space: nowrap; }
.brand:hover { text-decoration: none; }
.logo { color: var(--accent); }
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 12px; min-width: 0; }
.balance {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  white-space: nowrap;
}
.who { color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 220px; }
.topbar .menu-toggle { display: none; }
.sidebar {
  grid-area: nav;
  padding: 16px 12px;
  border-right: 1px solid var(--border);
  background: var(--surface);
}
.nav-group { display: flex; flex-direction: column; gap: 2px; margin-bottom: 20px; }
.nav-title { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); padding: 6px 10px; }
.nav-link { color: var(--text); padding: 8px 10px; border-radius: 8px; }
.nav-link:hover { background: var(--surface-2); text-decoration: none; }
.nav-link.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
main { grid-area: main; padding: 28px 32px 64px; min-width: 0; outline: none; }
.page { max-width: 1120px; }
.page-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.page-head h1 { margin: 0; }
.lead { color: var(--muted); margin: -8px 0 16px; }

/* --- cards & stats --- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 20px;
  margin-bottom: 16px;
}
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px 16px;
}
.stat-label { color: var(--muted); font-size: 0.82rem; }
.stat-value { font-size: 1.45rem; font-weight: 700; letter-spacing: -0.01em; margin-top: 2px; overflow-wrap: anywhere; }
.stat-sub { color: var(--muted); font-size: 0.82rem; margin-top: 2px; }
.stat-accent .stat-value { color: var(--accent); }
.stat-bad .stat-value { color: var(--bad); }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-2 > .card { margin-bottom: 0; }
.grid-2 + * { margin-top: 16px; }

/* A compact checklist replaces empty charts on the first visit. */
.setup-intro { margin: 0 0 12px; }
.setup-list { list-style: none; margin: 0; padding: 0; }
.setup-step { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-top: 1px solid var(--border); }
.setup-status { display: grid; place-items: center; flex: 0 0 26px; width: 26px; height: 26px; border-radius: 50%; background: var(--surface-2); color: var(--muted); font-weight: 700; }
.setup-step.done .setup-status { background: var(--ok-soft); color: var(--ok); }
.setup-content { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 1px; }
.setup-content .small { display: block; }
.section-title { margin: 8px 0 12px; }

/* --- callouts, badges, tags --- */
.callout { border-radius: 8px; padding: 10px 14px; margin: 0 0 16px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.callout-ok { background: var(--ok-soft); color: var(--ok); }
.callout-warn { background: var(--warn-soft); color: var(--warn); }
.callout-bad { background: var(--bad-soft); color: var(--bad); }
.callout-info { background: var(--info-soft); color: var(--info); }
.badge { display: inline-block; font-size: 0.75rem; font-weight: 600; padding: 2px 8px; border-radius: 999px; white-space: nowrap; }
.badge-ok { background: var(--ok-soft); color: var(--ok); }
.badge-warn { background: var(--warn-soft); color: var(--warn); }
.badge-bad { background: var(--bad-soft); color: var(--bad); }
.badge-info { background: var(--info-soft); color: var(--info); }
.badge-muted { background: var(--surface-2); color: var(--muted); }
.tag { display: inline-block; font-size: 0.75rem; background: var(--surface-2); border-radius: 5px; padding: 1px 6px; margin: 1px 4px 1px 0; }

/* --- buttons & forms --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  white-space: nowrap;
}
.btn:hover { background: var(--surface-2); text-decoration: none; }
.btn:disabled { opacity: 0.55; cursor: progress; }
.btn:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: var(--accent); filter: brightness(1.08); }
.btn-danger { background: var(--bad); border-color: var(--bad); color: #fff; }
.btn-danger:hover { background: var(--bad); filter: brightness(1.08); }
.btn-danger-ghost { color: var(--bad); }
.btn-ghost { background: transparent; border-color: transparent; }
.btn-small { padding: 4px 10px; font-size: 0.82rem; }
.btn-block { width: 100%; }
.row-actions { display: flex; gap: 8px; align-items: center; }
.row-actions.wrap { flex-wrap: wrap; }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; border: 0; padding: 0; min-width: 0; }
.field label, .field legend { font-weight: 600; font-size: 0.88rem; padding: 0; }
.req { color: var(--bad); }
input, select, textarea {
  font: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  width: 100%;
  min-width: 0;
}
input[readonly] { background: var(--surface-2); color: var(--muted); }
input[type="checkbox"] { width: auto; accent-color: var(--accent); }
.check { display: inline-flex; align-items: center; gap: 6px; font-weight: 500; cursor: pointer; }
.check small { display: inline; margin: 0 0 0 4px; }
.checks { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 6px 12px; }
.form-error { color: var(--bad); margin-bottom: 8px; font-size: 0.9rem; }
.form-error:empty { display: none; }
.inline-form { display: flex; align-items: flex-end; gap: 12px; flex-wrap: wrap; }
.inline-form .field { flex: 1 1 240px; margin-bottom: 0; }
.toolbar { margin-bottom: 12px; max-width: 360px; }
.presets { display: flex; flex-wrap: wrap; gap: 6px; margin: -4px 0 14px; }

/* --- tables --- */
.table-wrap { overflow-x: auto; margin: 0 -4px; }
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { text-align: left; padding: 9px 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); font-weight: 600; white-space: nowrap; }
tbody tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
td.actions { text-align: right; white-space: nowrap; }
td.actions .btn { margin-left: 4px; }
dl.details { display: grid; grid-template-columns: auto 1fr; gap: 2px 10px; margin: 0; font-size: 0.82rem; }
dl.details dt { color: var(--muted); }
dl.details dd { margin: 0; overflow-wrap: anywhere; }

/* --- tabs --- */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 12px; overflow-x: auto; }
.tab {
  font: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  padding: 8px 12px;
  cursor: pointer;
  white-space: nowrap;
}
.tab[aria-selected="true"] { color: var(--accent); border-bottom-color: var(--accent); }
.page-head .tabs { border-bottom: 0; margin: 0; }

/* --- code --- */
.code { position: relative; background: var(--surface-2); border-radius: 8px; margin: 8px 0; }
.code pre { margin: 0; padding: 14px 16px; overflow-x: auto; white-space: pre; }
.code code { background: none; padding: 0; }
.code .btn { position: absolute; top: 8px; right: 8px; }

/* --- chart --- */
.chart-wrap { position: relative; }
.chart { width: 100%; height: 160px; display: block; }
.chart-bar { fill: var(--accent); }
.chart-bar:hover { fill: var(--info); }
.chart-axis { stroke: var(--border); }
.chart-labels { display: flex; justify-content: space-between; color: var(--muted); font-size: 0.78rem; margin-top: 6px; }
.chart-empty { position: absolute; inset: 0 0 24px; display: grid; place-items: center; color: var(--muted); font-size: 0.9rem; }
.chart-max { margin-top: 2px; }

/* --- top-up --- */
.order-awaiting { border-color: var(--info); }
.order-amount { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 8px; }
.big { font-size: 1.8rem; font-weight: 800; letter-spacing: -0.02em; }
.instructions { background: var(--surface-2); padding: 10px 12px; border-radius: 8px; }
.steps { margin: 0; padding-left: 20px; }
.steps li { margin-bottom: 6px; }

/* --- auth --- */
.auth { max-width: 400px; margin: 10vh auto; padding: 0 16px; }
.auth-brand { font-weight: 800; font-size: 1.2rem; text-align: center; margin-bottom: 16px; }
.auth .card { padding: 24px; }
.auth-intro { margin: 4px 0 20px; color: var(--muted); }
.auth-footer { margin: 16px 0 0; }

/* --- dialogs & toasts --- */
.dialog {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  color: var(--text);
  padding: 22px;
  width: min(480px, calc(100vw - 32px));
  max-height: calc(100vh - 48px);
  overflow-y: auto;
}
.dialog-wide { width: min(720px, calc(100vw - 32px)); }
.dialog::backdrop { background: rgb(10 12 16 / 55%); }
.dialog h2 { margin-bottom: 14px; }
.dialog-intro { margin-bottom: 12px; }
.dialog-intro p { margin: 0; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 8px; }
#toasts { position: fixed; right: 16px; bottom: 16px; display: flex; flex-direction: column; gap: 8px; z-index: 100; max-width: calc(100vw - 32px); }
.toast { padding: 10px 14px; border-radius: 8px; box-shadow: 0 4px 16px rgb(0 0 0 / 18%); font-weight: 500; max-width: 420px; }
.toast-ok { background: var(--ok); color: #fff; }
.toast-bad { background: var(--bad); color: #fff; }
.toast-warn { background: var(--warn); color: #fff; }
.toast-info { background: var(--info); color: #fff; }

/* --- mobile --- */
@media (max-width: 860px) {
  .shell { grid-template-columns: 1fr; grid-template-areas: "top" "main"; }
  .topbar .menu-toggle { display: inline-flex; min-width: 44px; min-height: 44px; }
  .topbar-right .btn { min-height: 44px; }
  .who { display: none; }
  .sidebar {
    display: none;
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9;
    overflow-y: auto;
  }
  .sidebar.open { display: block; }
  main { padding: 20px 16px 48px; }
  .grid-2 { grid-template-columns: 1fr; }
  .topbar { padding: 0 12px; gap: 8px; }

  /* Tables become stacked cards. */
  table, thead, tbody, tr, td { display: block; width: 100%; }
  thead { display: none; }
  tr { border-bottom: 1px solid var(--border); padding: 8px 0; }
  tbody tr:last-child { border-bottom: 0; }
  td { border: 0; padding: 3px 0; display: flex; justify-content: space-between; gap: 12px; text-align: right; }
  td::before { content: attr(data-label); color: var(--muted); font-size: 0.8rem; text-align: left; flex-shrink: 0; }
  td[data-label=""]::before { content: none; }
  td.num, td.actions { text-align: right; }
  td.actions { justify-content: flex-end; flex-wrap: wrap; }
  .table-wrap { margin: 0; }
  .setup-step { align-items: flex-start; flex-wrap: wrap; }
  .setup-content { flex: 1 1 calc(100% - 38px); }
  .setup-step .btn { margin-left: 38px; min-height: 44px; }
}

/* --- back office & filters --- */
.balance.low { background: var(--warn-soft); color: var(--warn); }
.announcement { margin: 0 0 16px; max-width: 1120px; }
.nav-support { border-top: 1px solid var(--border); margin-top: 8px; padding: 12px 10px 0; font-size: 0.88rem; }
.nav-support .nav-title { padding: 0 0 4px; }
.toolbar-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.filters { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-end; flex: 1 1 auto; }
.filter { display: flex; flex-direction: column; gap: 4px; min-width: 150px; flex: 0 1 200px; }
.filter:first-child:has(input[type="search"]) { flex: 1 1 280px; }
.filter label { font-size: 0.78rem; font-weight: 600; color: var(--muted); }
.filter input, .filter select { padding: 6px 8px; font-size: 0.9rem; }
.row-actions.end { justify-content: flex-end; margin-top: 8px; }
.grid-2.tight { gap: 12px; }
.grid-2.tight + * { margin-top: 0; }
.stat-ok .stat-value { color: var(--ok); }
td small { display: block; margin-top: 2px; }
.banks { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 10px; margin: 8px 0 12px; }
.bank { display: flex; justify-content: space-between; align-items: center; gap: 12px; border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px; }
.bank-name { font-weight: 700; }
.bank-number { font-family: var(--mono); font-size: 1.05rem; letter-spacing: 0.02em; }
.bank-editor { display: flex; flex-direction: column; gap: 8px; align-items: flex-start; }
.bank-row { display: grid; grid-template-columns: 1fr 1.2fr 1.5fr auto; gap: 8px; width: 100%; }
.settings .card textarea { resize: vertical; }
@media (min-width: 861px) {
  /* Identifiers (model names, codes, keys) stay on one line in tables. */
  td code { overflow-wrap: normal; white-space: nowrap; }
}
@media (max-width: 860px) {
  .bank-row { grid-template-columns: 1fr; border-bottom: 1px solid var(--border); padding-bottom: 8px; }
  .filter { flex: 1 1 100%; }
  td small { display: inline; margin-left: 6px; }
}

/* --- menu counters --- */
.nav-link { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.nav-count { background: var(--bad); color: #fff; border-radius: 999px; font-size: 0.72rem; font-weight: 700; min-width: 20px; padding: 1px 6px; text-align: center; }
.nav-count[hidden] { display: none; }

/* --- docs --- */
.doc-toc { display: flex; flex-wrap: wrap; gap: 6px; margin: -4px 0 16px; }
.doc-toc a { font-size: 0.85rem; padding: 4px 10px; border-radius: 999px; background: var(--surface-2); color: var(--text); }
.doc-toc a:hover { text-decoration: none; background: var(--accent-soft); color: var(--accent); }
.doc h2 { margin-bottom: 10px; }
.doc ul { margin: 0; padding-left: 20px; }
.doc li { margin-bottom: 6px; }
.role-help { margin: 0 0 8px; padding-left: 18px; font-size: 0.88rem; }
.role-help li { margin-bottom: 4px; }
.pre { white-space: pre-line; }

/* --- receipt --- */
.receipt { max-width: 640px; padding: 28px 32px; }
.receipt-head { display: flex; justify-content: space-between; gap: 16px; border-bottom: 2px solid var(--text); padding-bottom: 14px; margin-bottom: 16px; }
.receipt-brand { font-size: 1.2rem; font-weight: 800; }
.receipt-title { text-align: right; font-weight: 800; letter-spacing: 0.08em; }
.receipt-fields { display: grid; grid-template-columns: 150px 1fr; gap: 8px 16px; margin: 0 0 16px; }
.receipt-fields dt { color: var(--muted); }
.receipt-fields dd { margin: 0; overflow-wrap: anywhere; }
.receipt-total { display: flex; justify-content: space-between; align-items: baseline; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 12px 0; margin-bottom: 12px; font-size: 1.1rem; }
.receipt-total strong { font-size: 1.5rem; }
.page > .row-actions.no-print { margin-bottom: 16px; }

@media print {
  :root { --bg: #fff; --surface: #fff; --text: #000; --muted: #444; --border: #bbb; color-scheme: light; }
  .topbar, .sidebar, .announcement, .no-print, #toasts { display: none !important; }
  .shell { display: block; }
  main { padding: 0; }
  .receipt { box-shadow: none; border: 0; max-width: none; padding: 0; }
}

/* --- new version notice --- */
.update-banner {
  position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%); z-index: 200;
  display: flex; align-items: center; gap: 12px; padding: 10px 14px; border-radius: 10px;
  background: var(--text); color: var(--bg); box-shadow: 0 6px 24px rgb(0 0 0 / 25%); font-weight: 600;
  max-width: calc(100vw - 32px);
}
@media print { .update-banner { display: none; } }