/* Palette: docs/showcase/spec.md section 4 only. Text sits only on the spec's checked pairs
   (ink, slate, primary and #0F6B47 on #FFFFFF; ink and primary on #F7F8FA; #FFFFFF on #1B3A5C).
   #DCE1E8 is a hairline colour for borders only and never carries text. */
:root {
  --color-ink: #1A1F26;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F7F8FA;
  --color-slate: #4A5568;
  --color-primary: #1B3A5C;
  --color-green-text: #0F6B47;   /* body-text-safe green, 6.5:1 on white */
  --color-green-large: #1F8A5F;  /* large text, icons, outlines and the logo tick only */
  --color-border: #DCE1E8;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, 'Liberation Mono', monospace;

  --fs-body: 1.0625rem;
  --fs-small: 0.9375rem;
  --fs-xsmall: 0.8125rem;
  --fs-h1: clamp(1.85rem, 4.4vw + 1rem, 2.75rem);
  --fs-h2: clamp(1.4rem, 1.6vw + 1rem, 1.85rem);
  --fs-h3: 1.125rem;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.75rem;
  --space-4: 2.75rem;
  --space-5: 4.5rem;

  --max-prose: 42rem;
  --max-wide: 60rem;

  --transition: 140ms ease;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.65;
  overflow-x: hidden;
}

h1, h2, h3 { font-family: var(--font-sans); font-weight: 700; line-height: 1.25; margin: 0 0 var(--space-2); color: var(--color-primary); }
h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

p { margin: 0 0 var(--space-2); max-width: 36em; }
ul, ol { margin: 0 0 var(--space-2); padding-left: 1.3em; }
li { margin-bottom: 0.5em; max-width: 36em; }

a { color: var(--color-primary); text-underline-offset: 0.15em; }
a:not(.button) { text-decoration-thickness: 1px; }

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

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  background: var(--color-primary);
  color: #FFFFFF;
  padding: 0.75em 1.25em;
  z-index: 100;
  border-radius: 0 0 6px 0;
}
.skip-link:focus { left: 0; top: 0; }

.wrap {
  max-width: var(--max-prose);
  margin: 0 auto;
  padding: 0 var(--space-3);
}
.wrap--wide { max-width: var(--max-wide); }

/* ---------- Header ---------- */
header.site-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}
.header-inner {
  max-width: var(--max-wide);
  margin: 0 auto;
  padding: var(--space-2) var(--space-3);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.logo-link { display: inline-flex; align-items: center; text-decoration: none; }
.logo-link svg { display: block; height: 32px; width: auto; flex: none; }
nav.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-3);
  font-size: var(--fs-small);
}
nav.site-nav li { margin: 0; }
nav.site-nav a { color: var(--color-slate); text-decoration: none; }
nav.site-nav a:hover { color: var(--color-primary); text-decoration: underline; }

/* ---------- Sections ---------- */
section { padding: var(--space-5) 0; }
section.alt { background: var(--color-bg-alt); }

.lede { font-size: 1.15rem; color: var(--color-slate); }

/* ---------- Hero ---------- */
.hero .wrap { max-width: var(--max-wide); }
.hero h1 { max-width: 18em; }
.hero-sub { font-size: 1.1rem; }
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
  margin-top: var(--space-3);
}
.status-line {
  margin-top: var(--space-3);
  font-size: var(--fs-small);
  color: var(--color-slate);
  border-left: 3px solid var(--color-border);
  padding-left: var(--space-2);
}

/* ---------- Buttons ---------- */
.button {
  display: inline-block;
  font-family: inherit;
  font-size: var(--fs-small);
  font-weight: 600;
  text-decoration: none;
  padding: 0.85em 1.4em;
  border-radius: 6px;
  border: 2px solid transparent;
  transition: border-color var(--transition), text-decoration-color var(--transition);
  cursor: pointer;
}
.button-primary { background: var(--color-primary); color: #FFFFFF; }
.button-primary:hover { text-decoration: underline; }
.button-secondary {
  background: var(--color-bg);
  color: var(--color-primary);
  border-color: var(--color-border);
}
.button-secondary:hover { border-color: var(--color-primary); }

/* ---------- Strengths list ---------- */
.strengths-list { list-style: none; padding: 0; margin: var(--space-3) 0 0; }
.strengths-list li {
  display: flex;
  gap: 0.85em;
  align-items: flex-start;
  padding: var(--space-2) 0;
  margin: 0;
  border-top: 1px solid var(--color-border);
  max-width: none;
}
.strengths-list li:last-child { border-bottom: 1px solid var(--color-border); }
.strengths-list svg { flex: none; margin-top: 0.2em; }
.strengths-list p { margin: 0; }

/* ---------- Sample email (used inside the preview panels) ---------- */
.email-meta { font-size: var(--fs-xsmall); color: var(--color-slate); margin-bottom: 0.4em; }
blockquote.sample-email {
  margin: 0;
  padding: var(--space-2);
  background: var(--color-bg-alt);
  border-left: 3px solid var(--color-border);
  border-radius: 4px;
  max-width: 36em;
}
blockquote.sample-email p:last-child { margin-bottom: 0; }

.ledger-row:target, .ledger-row.is-highlighted {
  outline: 3px solid var(--color-green-large);
  outline-offset: 2px;
}
.src-id { font-family: var(--font-mono); font-weight: 600; color: var(--color-green-text); }

.draft-reply {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  border-radius: 8px;
  padding: var(--space-3);
  max-width: 40em;
}
.draft-reply p { max-width: none; }
a.cite {
  font-family: var(--font-mono);
  font-size: 0.9em;
  color: var(--color-green-text);
  text-decoration: none;
  border-bottom: 1px solid var(--color-green-text);
  padding: 0 0.1em;
  overflow-wrap: anywhere;
}
a.cite:hover { border-bottom-width: 2px; }
a.cite .src-id { font-size: 0.85em; }

.not-advice {
  font-size: var(--fs-xsmall);
  color: var(--color-slate);
  border-top: 1px dashed var(--color-border);
  padding-top: var(--space-1);
  margin-top: var(--space-2);
}
table.check {
  border-collapse: collapse;
  width: 100%;
  font-size: var(--fs-small);
  margin-bottom: var(--space-2);
}
table.check th, table.check td {
  text-align: left;
  vertical-align: top;
  padding: 0.6em 0.75em 0.6em 0;
  border-bottom: 1px solid var(--color-border);
}
table.check caption.check-caption { caption-side: top; text-align: left; font-size: var(--fs-xsmall); color: var(--color-slate); font-weight: 600; padding-bottom: 0.35em; }
table.check thead th { color: var(--color-primary); font-size: var(--fs-xsmall); }
.guardrail-callout {
  margin-top: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-left: 3px solid var(--color-primary);
  background: var(--color-bg-alt);
  border-radius: 0 8px 8px 0;
}
.guardrail-callout p { margin-bottom: 0; }

/* ---------- Preview ---------- */
.preview-honesty {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: var(--space-2) var(--space-3);
  font-size: var(--fs-small);
  color: var(--color-slate);
  max-width: none;
  margin-bottom: var(--space-3);
}
.preview-honesty strong { color: var(--color-ink); }

.sample-picker { border: 0; padding: 0; margin: 0 0 var(--space-3); }
.sample-picker legend {
  font-weight: 600;
  font-size: var(--fs-small);
  color: var(--color-ink);
  padding: 0 0 var(--space-2);
}
.sample-picker-options { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.sample-picker-item {
  display: flex;
  align-items: flex-start;
  gap: 0.6em;
  max-width: 22em;
  padding: 0.6em 0.75em;
  border: 1px solid var(--color-border);
  border-radius: 8px;
}
.sample-picker-item input { margin-top: 0.3em; flex: none; }
.sample-picker-item label { cursor: pointer; max-width: none; }

.sample-panel { border-top: 1px solid var(--color-border); padding-top: var(--space-3); margin-top: var(--space-1); }

.ledger-list { list-style: none; margin: 0 0 var(--space-2); padding: 0; }
.ledger-row {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-green-large);
  border-radius: 6px;
  padding: var(--space-2);
  margin-bottom: var(--space-2);
  max-width: none;
  scroll-margin-top: 1.5rem;
}
.ledger-row p { margin: 0.5em 0 0; font-size: var(--fs-small); }
.ledger-row-head { font-weight: 600; margin-bottom: 0.5em; }
.ledger-fields { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.ledger-field { display: flex; flex-direction: column; gap: 0.3em; font-size: var(--fs-xsmall); }
.ledger-field-label { color: var(--color-slate); font-weight: 600; }
.ledger-field label { color: var(--color-slate); font-weight: 600; }
.ledger-field input {
  font-family: inherit;
  font-size: var(--fs-small);
  padding: 0.4em 0.5em;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-bg);
  color: var(--color-ink);
  max-width: 10em;
}
.row-status { font-weight: 600; }
.row-status[data-state="needs-bookkeeper"] { color: var(--color-primary); }
.row-status[data-state="included"] { color: var(--color-green-text); }
.row-status[data-state="excluded"] { color: var(--color-slate); }

.run-preview {
  font-family: inherit;
  font-size: var(--fs-small);
  font-weight: 600;
  padding: 0.7em 1.2em;
  border-radius: 6px;
  border: 2px solid var(--color-primary);
  background: var(--color-primary);
  color: #FFFFFF;
  cursor: pointer;
  margin: 0.25em 0 var(--space-2);
}
.run-preview:disabled { cursor: default; opacity: 0.7; }

.preview-progress { margin: 0 0 var(--space-2); max-width: 20em; }
.preview-progress .bar { height: 6px; background: var(--color-border); border-radius: 3px; overflow: hidden; }
.preview-progress .bar-fill { height: 100%; width: 0%; background: var(--color-primary); }
.preview-progress.is-running .bar-fill { width: 100%; transition: width 0.85s ease; }
.preview-progress p { margin: 0.4em 0 0; font-size: var(--fs-xsmall); color: var(--color-slate); }

.preview-result.is-collapsed { display: none; }
.invoice-status { font-weight: 600; }
.invoice-status.is-unpaid { color: var(--color-primary); }
.invoice-status.is-paid { color: var(--color-green-text); }

.exception-note {
  margin-top: var(--space-2);
  padding: var(--space-2);
  border: 1px dashed var(--color-slate);
  border-radius: 6px;
  font-size: var(--fs-small);
  max-width: none;
}
.exception-note p { margin: 0; }
table.check td.ok { color: var(--color-green-text); font-weight: 600; }
table.check td.flag { color: var(--color-primary); font-weight: 600; }
.held-back {
  margin-top: var(--space-2);
  padding: var(--space-2);
  border: 1px dashed var(--color-slate);
  border-radius: 6px;
  font-size: var(--fs-small);
  max-width: none;
}
.held-back p { margin: 0; max-width: none; }

.credit-meter {
  border-left: 3px solid var(--color-green-large);
  padding: var(--space-2) var(--space-3);
  background: var(--color-bg-alt);
  border-radius: 0 8px 8px 0;
  font-size: var(--fs-small);
  max-width: none;
  margin: var(--space-3) 0;
}
.credit-meter p { margin: 0; }
.credit-meter strong { color: var(--color-ink); }

.preview-next { margin-top: var(--space-2); }
table.pack-table { min-width: 0; }
table.pack-table th, table.pack-table td { padding-left: 0.75em; }
table.pack-table .button { padding: 0.5em 0.9em; margin-top: 0.4em; font-weight: 600; }
table.pack-table caption.check-caption { padding: 0.6em 0.75em 0.35em; }
.sample-email + .ledger-list { margin-top: var(--space-2); }
.preview-result table.check { margin-top: var(--space-3); }

/* ---------- Comparison table ---------- */
.table-scroll {
  overflow-x: auto;
  margin-top: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: 8px;
}
table.compare {
  border-collapse: collapse;
  width: 100%;
  min-width: 780px;
  font-size: var(--fs-small);
}
table.compare caption { text-align: left; padding: var(--space-2); font-size: var(--fs-xsmall); color: var(--color-slate); }
table.compare th, table.compare td {
  text-align: left;
  padding: 0.85em 1em;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}
table.compare thead th {
  background: var(--color-bg);
  color: var(--color-primary);
  font-weight: 700;
  white-space: nowrap;
  border-bottom: 2px solid var(--color-primary);
}
table.compare tbody th { font-weight: 600; color: var(--color-ink); min-width: 11em; }
table.compare .us { border-left: 3px solid var(--color-primary); border-right: 3px solid var(--color-primary); }
table.compare tbody tr:last-child td.us { border-bottom: 3px solid var(--color-primary); }
table.compare tbody tr:last-child td:not(.us), table.compare tbody tr:last-child th { border-bottom: none; }
sup.fn { font-size: 0.75em; }

.compare-note { font-size: var(--fs-small); color: var(--color-slate); margin: var(--space-2) 0 0; }
.fairness-note { margin-top: var(--space-3); max-width: 40em; }
.fairness-note li { max-width: none; }
.footnotes {
  margin-top: var(--space-2);
  font-size: var(--fs-xsmall);
  color: var(--color-slate);
}
.footnotes p { max-width: none; }
.footnotes ol { padding-left: 1.3em; margin: 0.4em 0 0; }
.footnotes li { max-width: none; margin-bottom: 0.3em; }

/* ---------- Roadmap ---------- */
.roadmap-group { margin-bottom: var(--space-3); }
.roadmap-group:last-child { margin-bottom: 0; }
.roadmap-group h3 { margin-bottom: 0.4em; }

/* ---------- Pricing ---------- */
.price-figure { font-size: 1.6rem; font-weight: 700; color: var(--color-primary); margin: 0 0 0.2em; }
.price-figure small { font-size: 0.55em; font-weight: 500; color: var(--color-slate); }

/* ---------- FAQ ---------- */
details.faq {
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-2) 0;
}
details.faq summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 1.02rem;
  list-style: none;
  display: flex;
  gap: 0.75em;
  align-items: baseline;
}
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after {
  content: "+";
  margin-left: auto;
  font-weight: 400;
  color: var(--color-slate);
}
details.faq[open] summary::after { content: "\2212"; }
details.faq .faq-answer { padding-top: 0.6em; }

/* ---------- Footer ---------- */
footer.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-4) 0 var(--space-5);
  font-size: var(--fs-small);
  color: var(--color-slate);
}
footer.site-footer a { color: var(--color-slate); }

@media (max-width: 480px) {
  :root { --space-5: 3rem; --space-4: 2rem; --space-3: 1.25rem; }
  table.compare { min-width: 680px; }
  table.check { font-size: var(--fs-xsmall); }
  .sample-picker-item { max-width: 100%; flex: 1 1 100%; }
  .ledger-field input { max-width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}

/* ---------- Your work (web shell) ---------- */
/* Web-shell branding (app-core web/README.md): map this page's own tokens onto the shell's
   --app-* custom properties. This file's <link> must stay after app-shell.css's in index.html
   so these win over the shell's built-in defaults. The page has a light theme only, so the
   shell is pinned to it (data-theme="light" on #app-shell) and the dark override is repeated
   here with the same specificity as the shell's own for robustness.
   :root also carries the tokens because the sign-in button lives in the header, outside
   #app-shell, and reads the same properties. */
:root {
  --app-ink: var(--color-ink);
  --app-accent: var(--color-primary);
  --app-bg: var(--color-bg);
  --app-font: var(--font-sans);
}
#app-shell {
  --app-ink: var(--color-ink);
  --app-accent: var(--color-primary);
  --app-bg: var(--color-bg);
  --app-font: var(--font-sans);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  margin-top: var(--space-3);
}
@media (prefers-color-scheme: dark) {
  #app-shell:not([data-theme="light"]) {
    --app-ink: var(--color-ink);
    --app-accent: var(--color-primary);
    --app-bg: var(--color-bg);
    --app-font: var(--font-sans);
  }
}
.section-intro { max-width: 40em; }
.checkout-note { font-size: var(--fs-small); color: var(--color-slate); max-width: 40em; }