/* Hallmark · pre-emit critique: P5 H5 E4 S5 R5 V4
 * genre: modern-minimal · macrostructure: Workbench · theme: Cobalt
 * nav: N3 side-rail · footer: Ft2 inline · enrichment: none
 * Audience: bookkeepers · purpose: review balances and local mock invoices.
 * Offline system fonts and embedded tokens honor the three-file delivery scope.
 */
:root {
  color-scheme: light;
  --color-paper: oklch(98.5% 0.004 250);
  --color-surface: oklch(99.6% 0.002 250);
  --color-soft: oklch(96.6% 0.007 250);
  --color-ink: oklch(25% 0.025 258);
  --color-body: oklch(37% 0.025 258);
  --color-muted: oklch(49% 0.025 258);
  --color-rule: oklch(89% 0.013 250);
  --color-rule-strong: oklch(67% 0.018 250);
  --color-accent: oklch(49% 0.23 264);
  --color-accent-hover: oklch(43% 0.21 264);
  --color-accent-soft: oklch(95% 0.026 264);
  --color-on-accent: oklch(99% 0.003 250);
  --color-rail: oklch(23% 0.018 258);
  --color-rail-active: oklch(31% 0.03 258);
  --color-rail-text: oklch(94% 0.008 250);
  --color-rail-muted: oklch(74% 0.021 250);
  --color-rail-rule: oklch(35% 0.022 258);
  --color-success: oklch(38% 0.085 164);
  --color-success-soft: oklch(96% 0.022 164);
  --color-error: oklch(43% 0.16 26);
  --color-error-soft: oklch(97% 0.016 26);
  --color-clear: oklch(98.5% 0.004 250 / 0);
  --font-display: "Bahnschrift", "Aptos Display", "Segoe UI", sans-serif;
  --font-body: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "Cascadia Code", "Consolas", monospace;
  --space-xs: 4px; --space-sm: 8px; --space-md: 12px; --space-lg: 16px;
  --space-xl: 24px; --space-2xl: 32px; --space-3xl: 48px;
  --radius-control: 6px; --radius-panel: 8px;
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; overflow-x: clip; }
body { background: var(--color-paper); color: var(--color-body); font: 14px/1.55 var(--font-body); }
button, input, select, textarea { font: inherit; }
button, a, input, select, textarea, summary { -webkit-tap-highlight-color: var(--color-clear); }
button { cursor: pointer; }
button, a { touch-action: manipulation; }
button { white-space: nowrap; }
button:disabled, select:disabled, textarea:disabled { cursor: not-allowed; opacity: .56; }
button:active:not(:disabled) { transform: translateY(1px); }
button, a, input, select, textarea, summary { outline-offset: 4px; }
:focus-visible { outline: 2px solid var(--color-accent); }
.ledger-navigation :focus-visible { outline-color: var(--color-rail-text); }
a { color: var(--color-accent); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { color: var(--color-ink); font-family: var(--font-display); font-style: normal; font-weight: 600; line-height: 1.2; min-width: 0; overflow-wrap: anywhere; }
h1 { font-size: 36px; letter-spacing: -.035em; }
h2 { font-size: 21px; letter-spacing: -.025em; }
h3 { font-size: 17px; }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: 8px; left: 8px; z-index: 10; padding: 12px 16px; background: var(--color-surface); transform: translateY(-160%); }
.skip-link:focus { transform: none; }
.ledger-navigation { position: fixed; inset: 0 auto 0 0; width: 216px; background: var(--color-rail); color: var(--color-rail-text); display: flex; flex-direction: column; padding: 32px 16px 20px; }
.brand { display: flex; gap: 12px; align-items: center; color: var(--color-rail-text); text-decoration: none; font: 600 19px/1.25 var(--font-display); padding: 0 8px; white-space: nowrap; }
.brand-mark { display: flex; align-items: center; justify-content: center; width: 32px; height: 36px; border: 1px solid var(--color-rail-muted); border-radius: 4px; font: 500 27px/1 var(--font-display); }
.brand-mark span { font-size: 20px; padding-top: 5px; }
.brand-subtitle { display: block; font: 10px/1.5 var(--font-body); color: var(--color-rail-muted); margin-top: 5px; }
.rail-label { color: var(--color-rail-muted); font-size: 11px; margin: 52px 12px 12px; letter-spacing: .06em; text-transform: uppercase; }
.rail-nav { display: grid; gap: 6px; }
.rail-nav button { display: flex; align-items: center; gap: 12px; padding: 12px; width: 100%; border: 1px solid var(--color-clear); border-radius: 6px; color: var(--color-rail-muted); background: var(--color-clear); text-align: left; font-size: 13px; }
.rail-nav button:hover { background: var(--color-rail-active); color: var(--color-rail-text); }
.rail-nav button[aria-current="page"] { color: var(--color-rail-text); background: var(--color-rail-active); border-color: var(--color-rail-rule); }
.rail-nav svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.5; flex: 0 0 auto; }
.rail-count { margin-left: auto; font: 11px var(--font-mono); }
.rail-bottom { margin-top: auto; padding: 40px 12px 0; }
.rail-environment { display: inline-flex; align-items: center; gap: 8px; font: 10px var(--font-mono); letter-spacing: .06em; }
.rail-environment::before { content: ""; width: 6px; height: 6px; background: var(--color-rail-muted); border-radius: 50%; }
.rail-bottom p { font-size: 12px; color: var(--color-rail-muted); margin-top: 16px; }
.rail-footnote { border-top: 1px solid var(--color-rail-rule); padding-top: 20px; margin-top: 24px; color: var(--color-rail-muted); font-size: 11px; display: flex; justify-content: space-between; }
.app-shell { margin-left: 216px; }
.topbar { min-height: 64px; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 16px 36px; border-bottom: 1px solid var(--color-rule); font-size: 12px; color: var(--color-muted); }
.topbar strong { color: var(--color-body); font-weight: 500; }
.breadcrumb-divider { margin: 0 10px; color: var(--color-rule-strong); }
.connection-status { font-size: 11px; display: inline-flex; gap: 7px; align-items: center; }
.connection-status::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--color-muted); flex-shrink: 0; }
.connection-status[data-connected="true"]::before { background: var(--color-success); }
main { padding: 36px; max-width: 1580px; margin-inline: auto; }
.page-heading { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
.page-heading p { margin-top: 8px; color: var(--color-muted); }
.as-of { display: grid; gap: 4px; text-align: right; font-size: 12px; flex-shrink: 0; }
.as-of span { color: var(--color-muted); font-size: 11px; }
.as-of time { font-family: var(--font-mono); }
.summary-strip { display: grid; grid-template-columns: 1fr 1.4fr 1fr; margin-bottom: 32px; border-block: 1px solid var(--color-rule); }
.summary-strip > div { padding: 20px 24px; min-width: 0; display: flex; flex-direction: column; align-items: flex-start; }
.summary-strip > div:first-child { padding-left: 0; }
.summary-strip > div + div { border-left: 1px solid var(--color-rule); }
.stat-label { font-size: 12px; color: var(--color-muted); }
.summary-strip strong { font: 500 30px/1.5 var(--font-display); font-variant-numeric: tabular-nums; letter-spacing: -.025em; color: var(--color-ink); overflow-wrap: anywhere; max-width: 100%; }
.stat-note { font-size: 11px; color: var(--color-muted); overflow-wrap: anywhere; }
.workbench { display: grid; grid-template-columns: minmax(260px, 320px) minmax(0, 1fr); gap: 24px; align-items: start; }
.prompt-panel { min-width: 0; }
.panel-heading { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.panel-heading h2 { font-size: 20px; }
.small-label { font-size: 10px; color: var(--color-muted); white-space: nowrap; }
.panel-intro { color: var(--color-muted); font-size: 12px; margin: 10px 0 24px; max-width: 34ch; }
label, legend { font-size: 12px; font-weight: 600; color: var(--color-ink); }
label { display: block; margin-bottom: 8px; }
input, select, textarea { width: 100%; min-width: 0; border: 1px solid var(--color-rule-strong); border-radius: var(--radius-control); background: var(--color-surface); color: var(--color-ink); padding: 10px 12px; }
input, select { min-height: 44px; }
textarea { resize: vertical; min-height: 158px; line-height: 1.65; font-size: 14px; }
textarea::placeholder { color: var(--color-muted); }
input:hover:not(:disabled), select:hover:not(:disabled), textarea:hover:not(:disabled) { border-color: var(--color-muted); }
input:focus, select:focus, textarea:focus { border-color: var(--color-accent); }
.field-help { font-size: 11px; color: var(--color-muted); margin: 8px 0 20px; overflow-wrap: anywhere; }
.mode-details { font-size: 11px; margin: -8px 0 20px; color: var(--color-muted); }
.mode-details summary { cursor: pointer; color: var(--color-body); padding-block: 4px; }
.mode-details p { margin-top: 8px; overflow-wrap: anywhere; }
input:user-invalid, textarea:user-invalid { border-color: var(--color-error); background: var(--color-error-soft); }
.input-caption { font-size: 10px; color: var(--color-muted); display: flex; justify-content: space-between; gap: 8px; margin: 8px 0 16px; }
kbd { font: 10px var(--font-mono); border: 1px solid var(--color-rule); border-radius: 3px; padding: 2px 4px; white-space: nowrap; align-self: start; }
.button { display: inline-flex; justify-content: center; align-items: center; gap: 12px; min-height: 44px; padding: 10px 16px; border-radius: var(--radius-control); border: 1px solid var(--color-rule-strong); background: var(--color-surface); color: var(--color-ink); text-decoration: none; font-size: 12px; font-weight: 600; }
.button:hover:not(:disabled) { border-color: var(--color-accent); color: var(--color-accent); background: var(--color-accent-soft); }
.button.primary { background: var(--color-accent); border-color: var(--color-accent); color: var(--color-on-accent); }
.button.primary:hover:not(:disabled) { background: var(--color-accent-hover); color: var(--color-on-accent); }
.button.full-width { width: 100%; justify-content: space-between; }
.button.small { min-height: 36px; padding: 7px 12px; font-size: 11px; }
.button[aria-busy="true"]::before { content: ""; width: 12px; height: 12px; border: 2px solid currentColor; border-right-color: var(--color-clear); border-radius: 50%; animation: spin .85s linear infinite; }
.preset-label { margin: 28px 0 10px; font-size: 11px; color: var(--color-muted); }
.presets { display: grid; gap: 8px; }
.preset { background: var(--color-clear); border: 1px solid var(--color-rule); border-radius: var(--radius-control); padding: 12px; display: flex; align-items: center; justify-content: space-between; gap: 8px; width: 100%; text-align: left; color: var(--color-muted); }
.preset strong { display: block; font-size: 12px; font-weight: 500; color: var(--color-ink); }
.preset span span { display: block; font-size: 10px; margin-top: 4px; }
.preset:hover:not(:disabled) { border-color: var(--color-accent); background: var(--color-accent-soft); }
#prompt-notice:empty { display: none; }
.scope-note { display: flex; gap: 10px; border-top: 1px solid var(--color-rule); margin-top: 28px; padding-top: 20px; }
.scope-note p { font-size: 11px; color: var(--color-muted); }
.scope-note strong { display: block; font-weight: 500; color: var(--color-body); margin-bottom: 4px; }
.scope-mark { display: flex; align-items: center; justify-content: center; flex: 0 0 16px; height: 16px; border: 1px solid var(--color-rule-strong); border-radius: 50%; color: var(--color-muted); font-size: 10px; margin-top: 3px; }
.output-panel { min-width: 0; border: 1px solid var(--color-rule); border-radius: var(--radius-panel); background: var(--color-surface); overflow: clip; }
.tablist { display: flex; gap: 24px; padding: 0 24px; border-bottom: 1px solid var(--color-rule); background: var(--color-soft); }
.tablist button { padding: 18px 0 15px; font-size: 12px; font-weight: 500; border: 0; border-bottom: 2px solid var(--color-clear); color: var(--color-muted); background: var(--color-clear); }
.tablist button[aria-selected="true"] { color: var(--color-accent); border-bottom-color: var(--color-accent); }
.tablist button:hover { color: var(--color-accent); }
.tablist button:focus-visible { outline-offset: -3px; }
.tab-panel { padding: 24px; min-height: 548px; }
.result-heading { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 20px; }
.result-heading h2 { font-size: 21px; }
.result-heading p { color: var(--color-muted); font-size: 11px; margin-top: 7px; }
.result-heading > div { min-width: 0; }
.badge { display: inline-block; padding: 4px 8px; font-size: 10px; font-weight: 600; border-radius: 3px; color: var(--color-accent); background: var(--color-accent-soft); white-space: nowrap; }
.query-echo { border-left: 2px solid var(--color-accent); padding: 8px 12px; margin-bottom: 24px; background: var(--color-soft); font-size: 12px; overflow-wrap: anywhere; white-space: pre-wrap; }
.query-echo span { display: block; color: var(--color-muted); font-size: 10px; margin-bottom: 4px; }
.report-total { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; padding: 16px 0 24px; }
.report-total strong { display: block; font: 500 clamp(28px, 3vw, 38px)/1.2 var(--font-display); color: var(--color-ink); letter-spacing: -.035em; overflow-wrap: anywhere; font-variant-numeric: tabular-nums; }
.report-total span { font-size: 11px; color: var(--color-muted); display: block; margin-bottom: 7px; }
.report-total .count { text-align: right; flex-shrink: 0; }
.report-total .count strong { font-size: 26px; }
.basis-note { font-size: 11px; line-height: 1.7; color: var(--color-muted); padding: 12px 0 16px; }
.report-warnings { border: 1px solid var(--color-rule-strong); background: var(--color-soft); border-radius: var(--radius-control); padding: 12px 16px; margin-bottom: 12px; font-size: 11px; overflow-wrap: anywhere; }
.report-warnings strong { color: var(--color-ink); font-weight: 600; }
.report-warnings p { margin-top: 6px; }
.table-wrap { width: 100%; overflow-x: auto; overscroll-behavior-inline: contain; }
.table-wrap:focus-visible { outline-offset: -2px; }
table { width: 100%; border-collapse: collapse; text-align: left; font-size: 12px; }
caption { text-align: left; color: var(--color-muted); font-size: 11px; margin-bottom: 10px; }
th { font-size: 10px; color: var(--color-muted); font-weight: 500; padding: 10px 8px; background: var(--color-soft); border-block: 1px solid var(--color-rule); }
td { padding: 13px 8px; border-bottom: 1px solid var(--color-rule); vertical-align: top; overflow-wrap: anywhere; }
td:first-child, th:first-child { padding-left: 12px; }
td:last-child, th:last-child { padding-right: 12px; }
tbody tr:hover { background: var(--color-soft); }
.number { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.customer-name { font-weight: 500; color: var(--color-ink); }
.cell-meta { display: block; font: 10px/1.6 var(--font-mono); color: var(--color-muted); margin-top: 3px; overflow-wrap: anywhere; }
tfoot td { font-weight: 600; background: var(--color-soft); }
.report-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 20px 0 12px; }
.evidence { margin-top: 20px; border-top: 1px solid var(--color-rule); padding-top: 12px; font-size: 11px; color: var(--color-muted); }
.evidence summary { cursor: pointer; min-height: 32px; padding: 4px 0; color: var(--color-body); width: fit-content; }
.evidence summary:hover { color: var(--color-accent); }
.evidence dl, .invoice-meta { display: grid; grid-template-columns: 100px minmax(0, 1fr); gap: 8px 12px; margin: 12px 0 0; }
dt { color: var(--color-muted); font-size: 11px; }
dd { margin: 0; min-width: 0; overflow-wrap: anywhere; white-space: pre-wrap; }
.evidence dd { font: 10px/1.7 var(--font-mono); }
.notice { background: var(--color-accent-soft); border: 1px solid var(--color-rule); border-left: 3px solid var(--color-accent); color: var(--color-body); padding: 12px 16px; font-size: 12px; margin-bottom: 20px; overflow-wrap: anywhere; }
.notice.error { background: var(--color-error-soft); color: var(--color-error); border-left-color: var(--color-error); }
.notice.success { background: var(--color-success-soft); color: var(--color-success); border-left-color: var(--color-success); }
.notice .button { margin-top: 10px; }
.notice p + p { margin-top: 8px; }
#status-error { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
#status-error .button { margin: 0; }
.empty-state { padding: 76px 16px; text-align: center; }
.empty-state h2, .empty-state h3 { font-size: 18px; }
.empty-state p { color: var(--color-muted); font-size: 12px; max-width: 38ch; margin: 12px auto 0; }
.empty-glyph { display: block; font: 32px/1 var(--font-display); color: var(--color-rule-strong); margin-bottom: 20px; }
.candidate-fieldset { border: 0; padding: 0; margin: 24px 0 16px; min-width: 0; }
.candidate-fieldset legend { padding: 0; margin-bottom: 12px; }
.candidate { display: flex; gap: 12px; align-items: flex-start; padding: 14px 12px; border: 1px solid var(--color-rule-strong); border-radius: var(--radius-control); margin-bottom: 10px; cursor: pointer; font-weight: 400; }
.candidate:has(input:checked) { border-color: var(--color-accent); background: var(--color-accent-soft); }
.candidate:hover { background: var(--color-soft); }
.candidate input { width: 16px; height: 16px; min-height: 0; padding: 0; margin: 3px 0 0; accent-color: var(--color-accent); flex: 0 0 auto; }
.candidate strong { display: block; font-size: 13px; font-weight: 600; overflow-wrap: anywhere; }
.candidate small { display: block; font-size: 11px; color: var(--color-muted); margin-top: 4px; overflow-wrap: anywhere; }
.candidate > span { min-width: 0; }
.invoice-sheet { border-block: 1px solid var(--color-rule); padding: 20px 0; }
.invoice-customer { font-size: 19px; color: var(--color-ink); margin: 6px 0 2px; overflow-wrap: anywhere; }
.invoice-meta { font-size: 12px; margin-top: 20px; grid-template-columns: 88px minmax(0, 1fr); }
.invoice-amount { border-top: 1px solid var(--color-rule); display: flex; justify-content: space-between; gap: 12px; margin-top: 20px; padding-top: 16px; align-items: baseline; }
.invoice-amount strong { color: var(--color-ink); font: 500 28px var(--font-display); font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.date-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin: 24px 0 16px; }
.date-fields input { font-size: 12px; }
.review-summary { background: var(--color-soft); border: 1px solid var(--color-rule); padding: 14px; font-size: 12px; margin: 16px 0; overflow-wrap: anywhere; }
.review-summary strong { display: block; margin-bottom: 6px; color: var(--color-ink); }
.confirm-help { font-size: 11px; color: var(--color-muted); margin: 10px 0 16px; }
.invoice-record { padding: 18px 0; border-bottom: 1px solid var(--color-rule); }
.invoice-record:first-child { padding-top: 0; }
.record-top { display: flex; justify-content: space-between; gap: 16px; align-items: baseline; }
.record-top strong { color: var(--color-ink); font-size: 13px; overflow-wrap: anywhere; }
.record-amount { white-space: nowrap; font-variant-numeric: tabular-nums; }
.invoice-record p { font-size: 12px; margin-top: 8px; overflow-wrap: anywhere; white-space: pre-wrap; }
.invoice-record .evidence { border: 0; margin: 10px 0 0; padding: 0; }
.activity-list { list-style: none; margin: 0; padding: 0; }
.activity-list li { position: relative; padding: 0 0 24px 20px; border-left: 1px solid var(--color-rule); margin-left: 4px; }
.activity-list li::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--color-rule-strong); position: absolute; left: -4px; top: 6px; }
.activity-list li:first-child::before { background: var(--color-accent); }
.activity-list strong { display: block; color: var(--color-ink); font-size: 12px; font-weight: 600; overflow-wrap: anywhere; }
.activity-list p { margin-top: 4px; font-size: 11px; overflow-wrap: anywhere; white-space: pre-wrap; }
.activity-list time { display: block; font: 10px/1.6 var(--font-mono); color: var(--color-muted); margin-top: 7px; }
.inline-footer { display: flex; gap: 20px; padding-top: 20px; margin-top: 36px; border-top: 1px solid var(--color-rule); font-size: 10px; color: var(--color-muted); }
.inline-footer strong { color: var(--color-body); font-weight: 500; white-space: nowrap; }
.inline-footer > span:last-child { margin-left: auto; white-space: nowrap; }
.noscript { position: fixed; inset: auto 16px 16px; background: var(--color-error-soft); color: var(--color-error); border: 1px solid var(--color-error); padding: 20px; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (min-width: 1600px) { .workbench { grid-template-columns: 340px minmax(0, 1fr); gap: 36px; } }
@media (max-width: 1150px) {
  .ledger-navigation { width: 184px; padding-inline: 12px; }
  .brand { font-size: 17px; gap: 8px; padding-inline: 0; }
  .brand-subtitle { font-size: 9px; }
  .app-shell { margin-left: 184px; }
  main { padding: 28px 24px; }
  .topbar { padding-inline: 24px; }
  .workbench { grid-template-columns: minmax(240px, 280px) minmax(0, 1fr); gap: 20px; }
  .panel-heading { display: block; }
  .small-label { display: block; margin-top: 6px; }
  .tablist { padding-inline: 16px; gap: 18px; }
  .tab-panel { padding: 20px 16px; }
  .result-heading { flex-direction: column; gap: 10px; }
  .summary-strip > div { padding-inline: 16px; }
  .summary-strip strong { font-size: 26px; }
  .inline-footer { flex-wrap: wrap; gap: 8px 16px; }
}
@media (max-width: 900px) {
  .ledger-navigation { width: 164px; }
  .app-shell { margin-left: 164px; }
  .brand { font-size: 15px; }
  .brand-subtitle { display: none; }
  .rail-nav button { font-size: 12px; gap: 8px; padding-inline: 8px; }
  .workbench { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .prompt-panel { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 0 24px; }
  .panel-heading, .panel-intro { grid-column: 1 / -1; }
  .panel-heading { display: flex; }
  .panel-intro { max-width: none; margin-bottom: 20px; }
  #ask-form { grid-row: 3 / 7; }
  .preset-label { margin-top: 0; }
  .scope-note { margin-top: 16px; }
  .presets { align-content: start; }
  #prompt-notice { grid-column: 2; }
  .result-heading { flex-direction: row; }
  .tab-panel { min-height: 400px; padding: 24px; }
  .tablist { padding-inline: 24px; }
}
@media (max-width: 680px) {
  .ledger-navigation { position: sticky; top: 0; z-index: 20; width: auto; padding: 16px 20px 0; display: block; }
  .brand { font-size: 18px; gap: 10px; }
  .brand-mark { width: 28px; height: 30px; font-size: 23px; }
  .brand-subtitle { display: block; font-size: 9px; }
  .rail-label, .rail-bottom, .rail-count { display: none; }
  .rail-nav { display: flex; gap: 8px; margin-top: 16px; }
  .rail-nav button { width: auto; flex: 1; justify-content: center; padding: 12px 8px; border-radius: 4px 4px 0 0; }
  .app-shell { margin-left: 0; }
  .topbar { padding: 12px 20px; min-height: 48px; }
  .topbar > span:first-child { display: none; }
  main { padding: 24px 20px; }
  .page-heading { flex-direction: column; align-items: flex-start; gap: 16px; margin-bottom: 24px; }
  h1 { font-size: 32px; }
  .page-heading p { font-size: 12px; }
  .as-of { display: flex; gap: 10px; align-items: center; font-size: 11px; }
  .summary-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); margin-bottom: 24px; }
  .summary-strip > div { padding: 16px 0; }
  .summary-strip > div:nth-child(2) { padding-left: 16px; }
  .summary-strip > div:last-child { grid-column: 1 / -1; border-left: 0; border-top: 1px solid var(--color-rule); display: grid; grid-template-columns: 1fr auto; }
  .summary-strip > div:last-child strong { grid-column: 2; grid-row: 1 / 3; align-self: center; }
  .stat-label { font-size: 11px; }
  .stat-note { font-size: 10px; }
  .summary-strip strong { font-size: 25px; }
  .prompt-panel { display: block; }
  .preset-label { margin-top: 24px; }
  .panel-heading { display: flex; align-items: center; }
  .panel-intro { margin-bottom: 20px; }
  .small-label { margin-top: 0; }
  .scope-note { margin-top: 24px; }
  .tablist { padding: 0 16px; justify-content: space-between; gap: 12px; }
  .tablist button { font-size: 11px; }
  .tab-panel { padding: 20px 16px; }
  .result-heading { flex-direction: column; }
  .result-heading h2 { font-size: 20px; }
  .report-total { gap: 8px; }
  .report-total strong { font-size: 28px; }
  th, td { padding-inline: 6px; }
  td:first-child, th:first-child { padding-left: 8px; }
  td:last-child, th:last-child { padding-right: 8px; }
  .parent-column { display: none; }
  .parent-mobile { display: block; }
  .date-fields { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .invoice-amount { flex-direction: column; gap: 4px; }
  .record-top { flex-direction: column; gap: 4px; }
  .inline-footer { gap: 8px; }
  .inline-footer strong, .inline-footer > span { flex-basis: 100%; }
  .inline-footer > span:last-child { margin-left: 0; }
  #status-error { flex-direction: column; align-items: flex-start; }
}
@media (min-width: 681px) { .parent-mobile { display: none; } }
@media (max-width: 360px) {
  .summary-strip { grid-template-columns: minmax(0, 1fr); }
  .summary-strip > div:nth-child(2) { padding-left: 0; border-left: 0; border-top: 1px solid var(--color-rule); }
  .summary-strip strong { white-space: nowrap; }
  main { padding-inline: 12px; }
  .ledger-navigation { padding-inline: 12px; }
  .rail-nav { gap: 4px; }
  .rail-nav svg { width: 14px; height: 14px; }
  .rail-nav button { font-size: 11px; gap: 6px; }
  .tab-panel { padding-inline: 12px; }
  .tablist { padding-inline: 12px; gap: 8px; }
  .summary-strip strong { font-size: 22px; }
  .report-total strong { font-size: 25px; }
  .report-total .count strong { font-size: 23px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; scroll-behavior: auto !important; }
  button:active:not(:disabled) { transform: none; }
}
@media (forced-colors: active) {
  .rail-nav button[aria-current="page"], .tablist button[aria-selected="true"], .candidate:has(input:checked) { border: 2px solid currentColor; }
}

/* Guided introduction: modal focus handling, a read-only spotlight, no dependencies. */
.topbar-actions { display: flex; align-items: center; gap: 20px; }
.tour-launch { background: transparent; }
.tour-launch > span { display: grid; place-items: center; width: 16px; height: 16px; border: 1px solid currentColor; border-radius: 50%; font-size: 10px; }
html.tour-open, .tour-open body { overflow: hidden; }
#product-tour { position: fixed; inset: 0; width: 100%; height: 100%; max-width: none; max-height: none; margin: 0; padding: 0; border: 0; background: transparent; color: var(--color-body); overflow: hidden; }
#product-tour::backdrop { background: transparent; }
.tour-shade { position: absolute; inset: 0; background: oklch(16% 0.025 258 / .66); }
.has-spotlight .tour-shade { background: transparent; }
.tour-spotlight { position: fixed; border: 2px solid var(--color-accent); border-radius: 8px; box-shadow: 0 0 0 9999px oklch(16% 0.025 258 / .66); pointer-events: none; }
.tour-card { position: fixed; display: flex; flex-direction: column; width: min(412px, calc(100% - 32px)); padding: 26px; border: 1px solid var(--color-rule); border-radius: 12px; background: var(--color-surface); box-shadow: 0 16px 56px oklch(12% 0.02 258 / .24); overflow: hidden; }
.tour-body { min-height: 0; overflow-y: auto; overscroll-behavior: contain; scrollbar-width: thin; }
.tour-body:focus-visible { outline-offset: -2px; }
.tour-topline { display: flex; flex-shrink: 0; align-items: center; justify-content: space-between; gap: 12px; }
.tour-eyebrow { font-size: 10px; font-weight: 600; letter-spacing: .07em; color: var(--color-accent); text-transform: uppercase; }
.tour-skip { border: 0; background: transparent; padding: 8px 0 8px 8px; color: var(--color-muted); font-size: 11px; }
.tour-skip:hover { color: var(--color-accent); }
.tour-progress { display: flex; flex-shrink: 0; gap: 5px; margin-top: 14px; }
.tour-progress span { flex: 1; height: 3px; border-radius: 2px; background: var(--color-rule); }
.tour-progress .is-complete { background: var(--color-accent); }
.tour-step { margin: 20px 0 10px; font: 10px var(--font-mono); color: var(--color-muted); }
#tour-title { font-size: 27px; line-height: 1.15; letter-spacing: -.03em; }
#tour-title:focus { outline: none; }
#tour-description { margin-top: 14px; font-size: 13px; line-height: 1.75; }
.tour-flow { display: flex; justify-content: space-between; gap: 12px; padding: 0; margin: 22px 0 0; list-style: none; }
.tour-flow li { flex: 1; font-size: 12px; color: var(--color-ink); border-top: 1px solid var(--color-rule); padding-top: 12px; }
.tour-flow span { display: block; font: 10px var(--font-mono); color: var(--color-accent); margin-bottom: 4px; }
.tour-tip { padding: 14px 16px; border-left: 2px solid var(--color-accent); background: var(--color-accent-soft); margin-top: 22px; font-size: 11px; line-height: 1.65; }
.tour-tip strong { display: block; font-size: 11px; color: var(--color-ink); margin-bottom: 4px; }
.tour-footer { display: flex; flex-shrink: 0; justify-content: space-between; gap: 12px; margin-top: 24px; }
#tour-next { margin-left: auto; }
.tour-replay-hint { flex-shrink: 0; margin-top: 14px; text-align: center; font-size: 10px; color: var(--color-muted); }
@media (max-width: 759px) {
  .tour-card { padding: 20px; }
  #tour-title { font-size: 24px; }
  .tour-step { margin-top: 16px; }
  #tour-description { font-size: 12px; margin-top: 12px; }
  .tour-tip { margin-top: 16px; padding: 12px; }
  .tour-footer { margin-top: 18px; }
}
@media (max-width: 680px) {
  .topbar-actions { width: 100%; justify-content: space-between; gap: 8px; }
  .tour-launch { gap: 6px; }
}
@media (forced-colors: active) {
  .tour-card, .tour-spotlight { border: 2px solid CanvasText; }
  .tour-progress .is-complete { background: Highlight; }
}