/* commerce/02-proof-docket/skin.css — P02 Proof Docket persona skin (component SK-A).
   Hand-authored by SK-A-P02-skin-builder. Overrides commerce/base/flow.css (loaded first).
   Tokens/geometry from samples/02-proof-docket/styles.css: canvas/paper/ink/rust palette (lines 8–25),
   hard offset shadows (238, 336), record sheets + tabs (233–239, 471–482), mono metadata labels
   (250–262), square controls (550–560), dark ink masthead (155–200).
   Structural flags: data-skin-catalog="records", data-skin-breakdown="record", data-skin-scheme="light",
   data-skin-density="dense", data-skin-nav="sticky-index" (commerce/skins.json).
   Rules: no wording, numbers, DOM order or banner changes; light scheme only (persona scheme, AA);
   focus 3 px #005fcc; 44 px targets; 16 px body; no images/fonts/URLs; no transition > 100 ms. */

:root {
  color-scheme: light;
  --canvas: #d9d2c4;
  --canvas-dark: #c9c0b1;
  --paper: #fbf7ed;
  --paper-warm: #f1eadc;
  --ink: #20211f;
  --ink-soft: #56574f;
  --rule: #74736a;
  --rule-light: #bbb4a7;
  --rust: #8d351c;
  --rust-dark: #63200f;
  --rust-wash: #f4d9ca;
  --open: #185b52;
  --shadow: rgba(42, 37, 29, 0.15);
  --serif: "Bitstream Charter", "DejaVu Serif", "Liberation Serif", Georgia, serif;
  --sans: "DejaVu Sans", "Liberation Sans", Arial, Helvetica, sans-serif;
  --mono: "DejaVu Sans Mono", "Liberation Mono", monospace;

  /* remap the base tokens (declared after flow.css, so these win in both colour-scheme modes) */
  --fg: var(--ink);
  --bg: var(--paper);
  --muted: var(--ink-soft);
  --line: var(--rule);
  --line-soft: var(--rule-light);
  --surface: var(--paper-warm);
  --accent: var(--rust-dark);
  --accent-fg: #ffffff;
  --link: var(--rust-dark);
  --notice-bg: var(--rust-wash);
  --notice-fg: var(--ink);
  --notice-line: var(--rust-dark);
  --error: #9b1c1c;
  --error-bg: #f8e6e6;
  --ok: var(--open);
  --focus: #005fcc;
  --zebra: var(--paper);
}

/* ---------- canvas + type ---------- */
body {
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.55;
}
h1, h2, h3 { font-family: var(--serif); letter-spacing: -0.01em; }
h1.page-heading { font-size: 1.85rem; margin: 1.25rem 0 0.75rem; }
h2 { font-size: 1.3rem; }
h3 { font-size: 1.1rem; }
a { color: var(--rust-dark); text-decoration-thickness: 0.12em; text-underline-offset: 0.2em; }
a:hover { text-decoration-thickness: 0.2em; }
:focus-visible, [tabindex="-1"]:focus { outline: 3px solid var(--focus); outline-offset: 3px; }
main:focus { outline: none; }

/* metadata labels: mono, small caps-like — the docket's ruled rows */
dt, .catalog-filter-label, .field label, .breakdown caption, .breakdown thead th,
.email-from, .email-subject, .flow-nav-current, .form-required-note, [data-content-id="form.all-required"] {
  font-family: var(--mono);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.marker-illustrative { font-family: var(--mono); font-style: normal; font-size: 1rem; color: var(--ink-soft); }

/* ---------- header chrome: banner first, then the ink masthead bar ---------- */
.site-header { max-width: none; padding: 0; background: var(--ink); }
.demo-notice {
  margin: 0;
  background: var(--rust-wash);
  color: var(--ink);
  border-block: 3px solid var(--rust-dark);
  font-family: var(--sans);
}
.demo-notice, .nojs { max-width: none; }
.site-header .nojs { background: var(--paper); margin: 0; padding: 0.75rem 1rem; }
.site-header .masthead.persona-chrome {
  max-width: 68rem;
  margin-inline: auto;
  padding: 1rem 1rem 0.9rem;
  color: #f1eadc;
}
.site-header .masthead .masthead { padding: 0; }
.brand-lockup { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.35rem 1rem; }
.brand-name { font-family: var(--serif); font-size: 1.8rem; font-weight: 700; letter-spacing: -0.02em; color: #ffffff; margin: 0; }
.brand-context { color: #ddd6c8; font-family: var(--mono); font-size: 0.875rem; letter-spacing: 0.06em; text-transform: uppercase; }

/* flow nav as a paper-warm tab strip under the masthead */
.flow-nav { max-width: none; padding: 0; background: var(--paper-warm); border-bottom: 1px solid var(--rule); }
.flow-nav-list { max-width: 68rem; margin: 0 auto; padding-inline: 1rem; border: 0; gap: 0; }
.flow-nav-list li + li { border-left: 1px solid var(--rule-light); }
.flow-nav-list a, .flow-nav-current { padding: 0 1rem; min-height: 46px; }
.flow-nav-list li:first-child a { padding-left: 0; }
.flow-nav-list a { font-weight: 700; color: var(--rust-dark); }
.flow-nav-current { color: var(--ink-soft); }
.skip-link { border-radius: 0; border-color: var(--ink); background: var(--paper); color: var(--rust-dark); }

/* ---------- main column: one record sheet on the canvas ---------- */
.flow-main {
  max-width: 68rem;
  margin: 1.5rem auto 0;
  padding: 0.25rem 1.25rem 1.5rem;
  background: var(--paper);
  border: 1px solid var(--rule);
  box-shadow: 0.55rem 0.6rem 0 var(--shadow);
}
@media (min-width: 1440px) { .flow-main, .flow-nav-list, .site-header .masthead.persona-chrome, .site-footer { max-width: 74rem; } }
@media (max-width: 480px) { .flow-main { margin-inline: 0.5rem; padding-inline: 0.85rem; box-shadow: 0.3rem 0.35rem 0 var(--shadow); } }

/* boundary notes: ruled paper strips with a rust rule, no radius */
[data-content-id="commerce.posture-note"], .quote-expired-note, .flow-expired,
[data-content-id="confirmation.disclaimer"], .demo-status:not(:empty) {
  border-left: 4px solid var(--rust-dark);
  background: var(--paper-warm);
  border-radius: 0;
}
.flow-precondition, .flow-load-error, .quote-locked-state, [data-content-id="quote.locked.state"],
.account-state, [data-content-id="account.state"], .form-errors, .product-spec-sheet, .provenance,
.order-summary, .margin-panel-values, .margin-panel, .email-envelope, .email-body { border-radius: 0; }
.quote-locked-state, [data-content-id="quote.locked.state"], .account-state, [data-content-id="account.state"] {
  border: 1px solid var(--open);
  border-left-width: 6px;
  background: var(--paper);
}
.form-errors { border-width: 2px; }

/* ---------- controls: square, ink/rust, no radius ---------- */
button, .cta-primary, .cta-secondary, .filter-button, .clear-demo, a.cta-primary, a.cta-secondary {
  border-radius: 0;
  border: 2px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  font-weight: 700;
  min-height: 46px;
  transition: none;
}
button:hover, .cta-secondary:hover, .filter-button:hover, .clear-demo:hover { background: var(--paper-warm); }
.cta-primary, button.cta-primary, a.cta-primary, [type="submit"] {
  background: var(--ink);
  color: #ffffff;
  border-color: var(--ink);
  box-shadow: 0.25rem 0.3rem 0 var(--shadow);
}
.cta-primary:hover, [type="submit"]:hover { filter: none; background: var(--rust-dark); border-color: var(--rust-dark); }
.filter-button[aria-pressed="true"] { background: var(--rust-dark); color: #ffffff; border-color: var(--rust-dark); }
input, select, textarea { border-radius: 0; border: 2px solid var(--rule); background: var(--paper); }
input:focus-visible, select:focus-visible, textarea:focus-visible { border-color: var(--ink); }
input[aria-invalid="true"], select[aria-invalid="true"] { border-color: var(--error); box-shadow: inset 0 0 0 1px var(--error); }

/* forms as docket forms: fields as ruled rows */
.field { margin: 0; padding: 0.85rem 0; border-top: 1px solid var(--rule-light); }
.field:last-of-type { border-bottom: 1px solid var(--rule-light); }
form .field + p, form > p:last-child { margin-top: 1rem; }
.field-hint { font-size: 0.95rem; }

/* ---------- description lists as ruled metadata rows ---------- */
dl { gap: 0; }
dt, dd { padding: 0.45rem 0.6rem; border-bottom: 1px solid var(--rule-light); }
dt { background: var(--paper-warm); color: var(--ink-soft); }
.product-spec-sheet, .provenance, .order-summary, .margin-panel-values {
  padding: 0;
  border: 1px solid var(--rule);
  background: var(--paper);
  overflow: hidden;
}
.product-spec-sheet dt, .provenance dt, .order-summary dt { color: var(--ink-soft); }
@media (max-width: 767px) {
  dl { gap: 0; }
  dt { border-bottom: 0; padding-bottom: 0.15rem; }
  dd { margin-bottom: 0; }
}
.unit-price-line, .order-line { font-family: var(--mono); font-size: 1.2rem; }

/* ---------- catalog: indexed record sheets + sticky category index ---------- */
[data-skin-catalog="records"] .catalog-filter {
  gap: 0.35rem;
  padding: 0.75rem;
  border: 1px solid var(--rule);
  background: var(--paper-warm);
  box-shadow: 0.35rem 0.4rem 0 var(--shadow);
}
[data-skin-catalog="records"] .catalog-filter-label { color: var(--rust-dark); margin-bottom: 0.25rem; }
[data-skin-catalog="records"] .filter-button { padding: 0.4rem 0.75rem; font-family: var(--mono); font-size: 0.875rem; letter-spacing: 0.04em; text-transform: uppercase; }
[data-skin-catalog="records"] .product-list {
  display: block;
  margin: 0.75rem 0 1rem;
  border-top: 1px solid var(--rule);
}
[data-skin-catalog="records"] .product-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  grid-template-areas: "name meta" "spec meta" "price meta";
  gap: 0.15rem 1.5rem;
  margin: 0;
  padding: 0.85rem 0.9rem 0.85rem 1.1rem;
  border: 0;
  border-bottom: 1px solid var(--rule);
  border-left: 5px solid var(--rule-light);
  border-radius: 0;
  background: var(--paper);
}
[data-skin-catalog="records"] .product-card:nth-child(even) { background: var(--paper-warm); }
[data-skin-catalog="records"] .product-card:hover, [data-skin-catalog="records"] .product-card:focus-within { border-left-color: var(--rust-dark); }
[data-skin-catalog="records"] .product-name { grid-area: name; margin: 0; }
[data-skin-catalog="records"] .product-name a { display: inline-block; padding-block: 0.5rem 0.2rem; }
[data-skin-catalog="records"] .product-spec { grid-area: spec; margin: 0; color: var(--ink-soft); font-size: 0.95rem; }
[data-skin-catalog="records"] .product-meta { grid-area: meta; margin: 0; align-self: start; grid-template-columns: minmax(7rem, 11rem) minmax(0, 1fr); font-size: 0.95rem; }
[data-skin-catalog="records"] .product-meta dt, [data-skin-catalog="records"] .product-meta dd { padding: 0.2rem 0.4rem; border-bottom: 1px dotted var(--rule-light); background: transparent; }
[data-skin-catalog="records"] .product-meta dt { font-size: 0.8rem; }
[data-skin-catalog="records"] .product-from-price { grid-area: price; margin: 0.35rem 0 0; font-family: var(--mono); font-weight: 700; }
@media (min-width: 1024px) {
  html[data-flow-page="catalog"] [data-skin-catalog="records"][data-skin-nav="sticky-index"] .flow-view {
    display: grid;
    grid-template-columns: minmax(12rem, 15rem) minmax(0, 1fr);
    column-gap: 2rem;
    align-items: start;
  }
  html[data-flow-page="catalog"] [data-skin-catalog="records"] .flow-view > * { grid-column: 2; min-width: 0; }
  html[data-flow-page="catalog"] [data-skin-catalog="records"] .flow-view > .catalog-filter {
    grid-column: 1;
    grid-row: 1 / span 12;
    position: sticky;
    top: 1rem;
    align-self: start;
    display: block;
    max-height: calc(100vh - 2rem);
    overflow-y: auto;
  }
  [data-skin-catalog="records"] .flow-view > .catalog-filter .filter-button { display: flex; width: 100%; justify-content: flex-start; text-align: left; margin-top: 0.35rem; }
  [data-skin-catalog="records"] .flow-view > .catalog-filter .catalog-filter-label { width: auto; }
}
@media (max-width: 767px) {
  [data-skin-catalog="records"] .product-card { grid-template-columns: minmax(0, 1fr); grid-template-areas: "name" "spec" "meta" "price"; }
  [data-skin-catalog="records"] .product-meta { margin-top: 0.4rem; }
}
/* the catalog page's non-catalog views (loading/errors) keep block layout */
[data-skin-catalog="records"] .flow-view > .flow-loading, [data-skin-catalog="records"] .flow-view > .flow-load-error, [data-skin-catalog="records"] .flow-view > .flow-precondition { grid-column: 1 / -1; }

/* ---------- product page: record sheet with a tab heading ---------- */
.product-title {
  display: inline-block;
  margin: 0.5rem 0 0.75rem;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--ink);
  border-bottom-width: 3px;
  background: var(--paper-warm);
  font-size: 1.35rem;
}
.pricing-basis, .lead-time-note, .catalog-assumption { font-size: 1rem; }

/* ---------- quote breakdown as a ruled record ---------- */
[data-skin-breakdown="record"] .breakdown { border: 1px solid var(--rule); box-shadow: 0.35rem 0.4rem 0 var(--shadow); background: var(--paper); }
[data-skin-breakdown="record"] .breakdown caption {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--rule);
  border-bottom: 0;
  background: var(--paper-warm);
  color: var(--rust-dark);
}
[data-skin-breakdown="record"] .breakdown th, [data-skin-breakdown="record"] .breakdown td {
  border: 0;
  border-bottom: 1px solid var(--rule-light);
  padding: 0.55rem 0.75rem;
}
[data-skin-breakdown="record"] .breakdown thead th { background: var(--paper-warm); border-bottom: 2px solid var(--rule); color: var(--ink-soft); }
[data-skin-breakdown="record"] .breakdown tbody tr:nth-child(even) td, [data-skin-breakdown="record"] .breakdown tbody tr:nth-child(even) th { background: transparent; }
[data-skin-breakdown="record"] .breakdown th[scope="row"] { width: 15rem; border-right: 1px solid var(--rule-light); }
[data-skin-breakdown="record"] .breakdown td:last-child { font-family: var(--mono); }
[data-skin-breakdown="record"] .breakdown-total th, [data-skin-breakdown="record"] .breakdown-total td {
  border-top: 3px double var(--ink);
  border-bottom: 0;
  background: var(--paper-warm) !important;
}
@media (max-width: 767px) {
  [data-skin-breakdown="record"] .breakdown tr { border: 0; border-bottom: 2px solid var(--rule); border-radius: 0; margin: 0; }
  [data-skin-breakdown="record"] .breakdown th[scope="row"] { width: auto; border-right: 0; background: var(--paper-warm) !important; }
  [data-skin-breakdown="record"] .breakdown-total { border-bottom: 0; }
  [data-skin-breakdown="record"] .breakdown-total th { border-top: 3px double var(--ink); }
}
.quote-actions { border-top: 1px solid var(--rule-light); padding-top: 1rem; }
.margin-panel { border: 1px dashed var(--rule); background: var(--paper-warm); }
.margin-panel summary { font-family: var(--mono); font-size: 0.95rem; letter-spacing: 0.03em; }
.margin-panel[open] > summary { border-bottom-color: var(--rule); }

/* ---------- email preview: envelope + body as one record ---------- */
.email-envelope { border: 1px solid var(--rule); background: var(--paper-warm); }
.email-body { border: 1px solid var(--rule); border-top: 0; background: var(--paper); font-family: var(--mono); font-size: 0.95rem; }

/* ---------- footer: below the sheet, on the canvas ---------- */
.site-footer { border-top: 1px solid var(--rule); margin-top: 1.5rem; padding-block: 1.25rem 2.5rem; max-width: 68rem; }
.footer-disclaimer { font-family: var(--mono); font-size: 0.95rem; }
.human-next-step { color: var(--ink-soft); }

/* ---------- motion / forced colours ---------- */
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; animation: none !important; } }
@media (forced-colors: active) { .flow-main, .product-card, .breakdown { border: 1px solid CanvasText; box-shadow: none; } }